* [Qemu-devel] [patch 1/3] QEMU-C-F: Bring up the elf.h header up-to-date with latest glibc elf.h header [not found] <20100622040018.044362998@mars.in.ibm.com> @ 2010-06-22 4:01 ` Mahesh Salgaonkar 2010-06-22 4:01 ` [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter Mahesh Salgaonkar 2010-06-22 4:02 ` [Qemu-devel] [patch 3/3] QEMU-C-F: qemu-core-filter documentation Mahesh Salgaonkar 2 siblings, 0 replies; 5+ messages in thread From: Mahesh Salgaonkar @ 2010-06-22 4:01 UTC (permalink / raw) To: qemu-devel Cc: Ananth N Mavinakayanahalli, Mahesh Salgaonkar, Maneesh Soni, Michael Mueller, Reinhard Buendgen [-- Attachment #1: update_elf_header.patch --] [-- Type: text/plain, Size: 133103 bytes --] This patch brings elf.h up-to-date with elf.h in glibc-headers-2.11.2 stable release. This is a pre-requisite for qemu-core-filter as it uses build-id support which was introduced in newer version of elfutils starting from v0.138. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> --- elf.h | 3238 ++++++++++++++++++++++++++++++++++++++++++++++++----------------- 1 files changed, 2389 insertions(+), 849 deletions(-) diff --git a/elf.h b/elf.h index eb9e3be..1a0fe56 100644 --- a/elf.h +++ b/elf.h @@ -1,635 +1,1688 @@ #ifndef _QEMU_ELF_H #define _QEMU_ELF_H -#include <inttypes.h> +#include <features.h> -/* 32-bit ELF base types. */ -typedef uint32_t Elf32_Addr; -typedef uint16_t Elf32_Half; -typedef uint32_t Elf32_Off; -typedef int32_t Elf32_Sword; -typedef uint32_t Elf32_Word; +__BEGIN_DECLS -/* 64-bit ELF base types. */ -typedef uint64_t Elf64_Addr; +/* Standard ELF types. */ + +#include <stdint.h> + +/* Type for a 16-bit quantity. */ +typedef uint16_t Elf32_Half; typedef uint16_t Elf64_Half; -typedef int16_t Elf64_SHalf; -typedef uint64_t Elf64_Off; -typedef int32_t Elf64_Sword; + +/* Types for signed and unsigned 32-bit quantities. */ +typedef uint32_t Elf32_Word; +typedef int32_t Elf32_Sword; typedef uint32_t Elf64_Word; +typedef int32_t Elf64_Sword; + +/* Types for signed and unsigned 64-bit quantities. */ +typedef uint64_t Elf32_Xword; +typedef int64_t Elf32_Sxword; typedef uint64_t Elf64_Xword; -typedef int64_t Elf64_Sxword; - -/* These constants are for the segment types stored in the image headers */ -#define PT_NULL 0 -#define PT_LOAD 1 -#define PT_DYNAMIC 2 -#define PT_INTERP 3 -#define PT_NOTE 4 -#define PT_SHLIB 5 -#define PT_PHDR 6 -#define PT_LOPROC 0x70000000 -#define PT_HIPROC 0x7fffffff -#define PT_MIPS_REGINFO 0x70000000 -#define PT_MIPS_OPTIONS 0x70000001 - -/* Flags in the e_flags field of the header */ -/* MIPS architecture level. */ -#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ -#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ -#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ -#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ -#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ -#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */ -#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */ - -/* The ABI of a file. */ -#define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */ -#define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */ - -#define EF_MIPS_NOREORDER 0x00000001 -#define EF_MIPS_PIC 0x00000002 -#define EF_MIPS_CPIC 0x00000004 -#define EF_MIPS_ABI2 0x00000020 -#define EF_MIPS_OPTIONS_FIRST 0x00000080 -#define EF_MIPS_32BITMODE 0x00000100 -#define EF_MIPS_ABI 0x0000f000 -#define EF_MIPS_ARCH 0xf0000000 - -/* These constants define the different elf file types */ -#define ET_NONE 0 -#define ET_REL 1 -#define ET_EXEC 2 -#define ET_DYN 3 -#define ET_CORE 4 -#define ET_LOPROC 0xff00 -#define ET_HIPROC 0xffff - -/* These constants define the various ELF target machines */ -#define EM_NONE 0 -#define EM_M32 1 -#define EM_SPARC 2 -#define EM_386 3 -#define EM_68K 4 -#define EM_88K 5 -#define EM_486 6 /* Perhaps disused */ -#define EM_860 7 - -#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ - -#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ - -#define EM_PARISC 15 /* HPPA */ - -#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ - -#define EM_PPC 20 /* PowerPC */ -#define EM_PPC64 21 /* PowerPC64 */ +typedef int64_t Elf64_Sxword; -#define EM_ARM 40 /* ARM */ +/* Type of addresses. */ +typedef uint32_t Elf32_Addr; +typedef uint64_t Elf64_Addr; -#define EM_SH 42 /* SuperH */ +/* Type of file offsets. */ +typedef uint32_t Elf32_Off; +typedef uint64_t Elf64_Off; -#define EM_SPARCV9 43 /* SPARC v9 64-bit */ +/* Type for section indices, which are 16-bit quantities. */ +typedef uint16_t Elf32_Section; +typedef uint16_t Elf64_Section; + +/* Type for version symbol information. */ +typedef Elf32_Half Elf32_Versym; +typedef Elf64_Half Elf64_Versym; + + +/* The ELF file header. This appears at the start of every ELF file. */ + +#define EI_NIDENT (16) + +typedef struct elf32_hdr +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf32_Half e_type; /* Object file type */ + Elf32_Half e_machine; /* Architecture */ + Elf32_Word e_version; /* Object file version */ + Elf32_Addr e_entry; /* Entry point virtual address */ + Elf32_Off e_phoff; /* Program header table file offset */ + Elf32_Off e_shoff; /* Section header table file offset */ + Elf32_Word e_flags; /* Processor-specific flags */ + Elf32_Half e_ehsize; /* ELF header size in bytes */ + Elf32_Half e_phentsize; /* Program header table entry size */ + Elf32_Half e_phnum; /* Program header table entry count */ + Elf32_Half e_shentsize; /* Section header table entry size */ + Elf32_Half e_shnum; /* Section header table entry count */ + Elf32_Half e_shstrndx; /* Section header string table index */ +} Elf32_Ehdr; -#define EM_IA_64 50 /* HP/Intel IA-64 */ +typedef struct elf64_hdr +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf64_Half e_type; /* Object file type */ + Elf64_Half e_machine; /* Architecture */ + Elf64_Word e_version; /* Object file version */ + Elf64_Addr e_entry; /* Entry point virtual address */ + Elf64_Off e_phoff; /* Program header table file offset */ + Elf64_Off e_shoff; /* Section header table file offset */ + Elf64_Word e_flags; /* Processor-specific flags */ + Elf64_Half e_ehsize; /* ELF header size in bytes */ + Elf64_Half e_phentsize; /* Program header table entry size */ + Elf64_Half e_phnum; /* Program header table entry count */ + Elf64_Half e_shentsize; /* Section header table entry size */ + Elf64_Half e_shnum; /* Section header table entry count */ + Elf64_Half e_shstrndx; /* Section header string table index */ +} Elf64_Ehdr; -#define EM_X86_64 62 /* AMD x86-64 */ +/* Fields in the e_ident array. The EI_* macros are indices into the + array. The macros under each EI_* macro are the values the byte + may have. */ -#define EM_S390 22 /* IBM S/390 */ +#define EI_MAG0 0 /* File identification byte 0 index */ +#define ELFMAG0 0x7f /* Magic number byte 0 */ -#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ +#define EI_MAG1 1 /* File identification byte 1 index */ +#define ELFMAG1 'E' /* Magic number byte 1 */ -#define EM_V850 87 /* NEC v850 */ +#define EI_MAG2 2 /* File identification byte 2 index */ +#define ELFMAG2 'L' /* Magic number byte 2 */ -#define EM_H8_300H 47 /* Hitachi H8/300H */ -#define EM_H8S 48 /* Hitachi H8S */ +#define EI_MAG3 3 /* File identification byte 3 index */ +#define ELFMAG3 'F' /* Magic number byte 3 */ -/* - * This is an interim value that we will use until the committee comes - * up with a final number. - */ -#define EM_ALPHA 0x9026 +/* Conglomeration of the identification bytes, for easy testing as a word. */ +#define ELFMAG "\177ELF" +#define SELFMAG 4 -/* Bogus old v850 magic number, used by old tools. */ -#define EM_CYGNUS_V850 0x9080 +#define EI_CLASS 4 /* File class byte index */ +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ +#define ELFCLASSNUM 3 + +#define EI_DATA 5 /* Data encoding byte index */ +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* 2's complement, little endian */ +#define ELFDATA2MSB 2 /* 2's complement, big endian */ +#define ELFDATANUM 3 + +#define EI_VERSION 6 /* File version byte index */ + /* Value must be EV_CURRENT */ + +#define EI_OSABI 7 /* OS ABI identification */ +#define ELFOSABI_NONE 0 /* UNIX System V ABI */ +#define ELFOSABI_SYSV 0 /* Alias. */ +#define ELFOSABI_HPUX 1 /* HP-UX */ +#define ELFOSABI_NETBSD 2 /* NetBSD. */ +#define ELFOSABI_LINUX 3 /* Linux. */ +#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ +#define ELFOSABI_AIX 7 /* IBM AIX. */ +#define ELFOSABI_IRIX 8 /* SGI Irix. */ +#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ +#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ +#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ +#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ +#define ELFOSABI_ARM 97 /* ARM */ +#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ + +#define EI_ABIVERSION 8 /* ABI version */ + +#define EI_PAD 9 /* Byte index of padding bytes */ + +/* Legal values for e_type (object file type). */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_NUM 5 /* Number of defined types */ +#define ET_LOOS 0xfe00 /* OS-specific range start */ +#define ET_HIOS 0xfeff /* OS-specific range end */ +#define ET_LOPROC 0xff00 /* Processor-specific range start */ +#define ET_HIPROC 0xffff /* Processor-specific range end */ + +/* Legal values for e_machine (architecture). */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SUN SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola m68k family */ +#define EM_88K 5 /* Motorola m88k family */ +#define EM_486 6 /* Perhaps disused */ +#define EM_860 7 /* Intel 80860 */ +#define EM_MIPS 8 /* MIPS R3000 big-endian */ +#define EM_S370 9 /* IBM System/370 */ +#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */ + +#define EM_PARISC 15 /* HPPA */ +#define EM_VPP500 17 /* Fujitsu VPP500 */ +#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ +#define EM_960 19 /* Intel 80960 */ +#define EM_PPC 20 /* PowerPC */ +#define EM_PPC64 21 /* PowerPC 64-bit */ +#define EM_S390 22 /* IBM S390 */ + +#define EM_V800 36 /* NEC V800 series */ +#define EM_FR20 37 /* Fujitsu FR20 */ +#define EM_RH32 38 /* TRW RH-32 */ +#define EM_RCE 39 /* Motorola RCE */ +#define EM_ARM 40 /* ARM */ +#define EM_FAKE_ALPHA 41 /* Digital Alpha */ +#define EM_SH 42 /* Hitachi SH */ +#define EM_SPARCV9 43 /* SPARC v9 64-bit */ +#define EM_TRICORE 44 /* Siemens Tricore */ +#define EM_ARC 45 /* Argonaut RISC Core */ +#define EM_H8_300 46 /* Hitachi H8/300 */ +#define EM_H8_300H 47 /* Hitachi H8/300H */ +#define EM_H8S 48 /* Hitachi H8S */ +#define EM_H8_500 49 /* Hitachi H8/500 */ +#define EM_IA_64 50 /* Intel Merced */ +#define EM_MIPS_X 51 /* Stanford MIPS-X */ +#define EM_COLDFIRE 52 /* Motorola Coldfire */ +#define EM_68HC12 53 /* Motorola M68HC12 */ +#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ +#define EM_PCP 55 /* Siemens PCP */ +#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ +#define EM_NDR1 57 /* Denso NDR1 microprocessor */ +#define EM_STARCORE 58 /* Motorola Start*Core processor */ +#define EM_ME16 59 /* Toyota ME16 processor */ +#define EM_ST100 60 /* STMicroelectronic ST100 processor */ +#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ +#define EM_X86_64 62 /* AMD x86-64 architecture */ +#define EM_PDSP 63 /* Sony DSP Processor */ + +#define EM_FX66 66 /* Siemens FX66 microcontroller */ +#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ +#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ +#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ +#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ +#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ +#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ +#define EM_SVX 73 /* Silicon Graphics SVx */ +#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ +#define EM_VAX 75 /* Digital VAX */ +#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ +#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ +#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ +#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ +#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ +#define EM_HUANY 81 /* Harvard University machine-independent object files */ +#define EM_PRISM 82 /* SiTera Prism */ +#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ +#define EM_FR30 84 /* Fujitsu FR30 */ +#define EM_D10V 85 /* Mitsubishi D10V */ +#define EM_D30V 86 /* Mitsubishi D30V */ +#define EM_V850 87 /* NEC v850 */ +#define EM_M32R 88 /* Mitsubishi M32R */ +#define EM_MN10300 89 /* Matsushita MN10300 */ +#define EM_MN10200 90 /* Matsushita MN10200 */ +#define EM_PJ 91 /* picoJava */ +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ +#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ +#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ +#define EM_NUM 95 + +/* If it is necessary to assign new unofficial EM_* values, please + pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the + chances of collision with official or non-GNU unofficial values. */ -/* - * This is the old interim value for S/390 architecture - */ -#define EM_S390_OLD 0xA390 +#define EM_ALPHA 0x9026 #define EM_MICROBLAZE 189 #define EM_MICROBLAZE_OLD 0xBAAB -/* This is the info that is needed to parse the dynamic section of the file */ -#define DT_NULL 0 -#define DT_NEEDED 1 -#define DT_PLTRELSZ 2 -#define DT_PLTGOT 3 -#define DT_HASH 4 -#define DT_STRTAB 5 -#define DT_SYMTAB 6 -#define DT_RELA 7 -#define DT_RELASZ 8 -#define DT_RELAENT 9 -#define DT_STRSZ 10 -#define DT_SYMENT 11 -#define DT_INIT 12 -#define DT_FINI 13 -#define DT_SONAME 14 -#define DT_RPATH 15 -#define DT_SYMBOLIC 16 -#define DT_REL 17 -#define DT_RELSZ 18 -#define DT_RELENT 19 -#define DT_PLTREL 20 -#define DT_DEBUG 21 -#define DT_TEXTREL 22 -#define DT_JMPREL 23 -#define DT_LOPROC 0x70000000 -#define DT_HIPROC 0x7fffffff -#define DT_MIPS_RLD_VERSION 0x70000001 -#define DT_MIPS_TIME_STAMP 0x70000002 -#define DT_MIPS_ICHECKSUM 0x70000003 -#define DT_MIPS_IVERSION 0x70000004 -#define DT_MIPS_FLAGS 0x70000005 - #define RHF_NONE 0 - #define RHF_HARDWAY 1 - #define RHF_NOTPOT 2 -#define DT_MIPS_BASE_ADDRESS 0x70000006 -#define DT_MIPS_CONFLICT 0x70000008 -#define DT_MIPS_LIBLIST 0x70000009 -#define DT_MIPS_LOCAL_GOTNO 0x7000000a -#define DT_MIPS_CONFLICTNO 0x7000000b -#define DT_MIPS_LIBLISTNO 0x70000010 -#define DT_MIPS_SYMTABNO 0x70000011 -#define DT_MIPS_UNREFEXTNO 0x70000012 -#define DT_MIPS_GOTSYM 0x70000013 -#define DT_MIPS_HIPAGENO 0x70000014 -#define DT_MIPS_RLD_MAP 0x70000016 - -/* This info is needed when parsing the symbol table */ -#define STB_LOCAL 0 -#define STB_GLOBAL 1 -#define STB_WEAK 2 - -#define STT_NOTYPE 0 -#define STT_OBJECT 1 -#define STT_FUNC 2 -#define STT_SECTION 3 -#define STT_FILE 4 - -#define ELF_ST_BIND(x) ((x) >> 4) -#define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf) -#define ELF32_ST_BIND(x) ELF_ST_BIND(x) -#define ELF32_ST_TYPE(x) ELF_ST_TYPE(x) -#define ELF64_ST_BIND(x) ELF_ST_BIND(x) -#define ELF64_ST_TYPE(x) ELF_ST_TYPE(x) - -/* Symbolic values for the entries in the auxiliary table - put on the initial stack */ -#define AT_NULL 0 /* end of vector */ -#define AT_IGNORE 1 /* entry should be ignored */ -#define AT_EXECFD 2 /* file descriptor of program */ -#define AT_PHDR 3 /* program headers for program */ -#define AT_PHENT 4 /* size of program header entry */ -#define AT_PHNUM 5 /* number of program headers */ -#define AT_PAGESZ 6 /* system page size */ -#define AT_BASE 7 /* base address of interpreter */ -#define AT_FLAGS 8 /* flags */ -#define AT_ENTRY 9 /* entry point of program */ -#define AT_NOTELF 10 /* program is not ELF */ -#define AT_UID 11 /* real uid */ -#define AT_EUID 12 /* effective uid */ -#define AT_GID 13 /* real gid */ -#define AT_EGID 14 /* effective gid */ -#define AT_PLATFORM 15 /* string identifying CPU for optimizations */ -#define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */ -#define AT_CLKTCK 17 /* frequency at which times() increments */ - -typedef struct dynamic{ - Elf32_Sword d_tag; - union{ - Elf32_Sword d_val; - Elf32_Addr d_ptr; - } d_un; -} Elf32_Dyn; +/* Legal values for e_version (version). */ -typedef struct { - Elf64_Sxword d_tag; /* entry tag value */ - union { - Elf64_Xword d_val; - Elf64_Addr d_ptr; - } d_un; -} Elf64_Dyn; +#define EV_NONE 0 /* Invalid ELF version */ +#define EV_CURRENT 1 /* Current version */ +#define EV_NUM 2 -/* The following are used with relocations */ -#define ELF32_R_SYM(x) ((x) >> 8) -#define ELF32_R_TYPE(x) ((x) & 0xff) +/* Section header. */ + +typedef struct elf32_shdr +{ + Elf32_Word sh_name; /* Section name (string tbl index) */ + Elf32_Word sh_type; /* Section type */ + Elf32_Word sh_flags; /* Section flags */ + Elf32_Addr sh_addr; /* Section virtual addr at execution */ + Elf32_Off sh_offset; /* Section file offset */ + Elf32_Word sh_size; /* Section size in bytes */ + Elf32_Word sh_link; /* Link to another section */ + Elf32_Word sh_info; /* Additional section information */ + Elf32_Word sh_addralign; /* Section alignment */ + Elf32_Word sh_entsize; /* Entry size if section holds table */ +} Elf32_Shdr; + +typedef struct elf64_shdr +{ + Elf64_Word sh_name; /* Section name (string tbl index) */ + Elf64_Word sh_type; /* Section type */ + Elf64_Xword sh_flags; /* Section flags */ + Elf64_Addr sh_addr; /* Section virtual addr at execution */ + Elf64_Off sh_offset; /* Section file offset */ + Elf64_Xword sh_size; /* Section size in bytes */ + Elf64_Word sh_link; /* Link to another section */ + Elf64_Word sh_info; /* Additional section information */ + Elf64_Xword sh_addralign; /* Section alignment */ + Elf64_Xword sh_entsize; /* Entry size if section holds table */ +} Elf64_Shdr; + +/* Special section indices. */ + +#define SHN_UNDEF 0 /* Undefined section */ +#define SHN_LORESERVE 0xff00 /* Start of reserved indices */ +#define SHN_LOPROC 0xff00 /* Start of processor-specific */ +#define SHN_BEFORE 0xff00 /* Order section before all others + (Solaris). */ +#define SHN_AFTER 0xff01 /* Order section after all others + (Solaris). */ +#define SHN_HIPROC 0xff1f /* End of processor-specific */ +#define SHN_LOOS 0xff20 /* Start of OS-specific */ +#define SHN_HIOS 0xff3f /* End of OS-specific */ +#define SHN_ABS 0xfff1 /* Associated symbol is absolute */ +#define SHN_COMMON 0xfff2 /* Associated symbol is common */ +#define SHN_XINDEX 0xffff /* Index is in extra table. */ +#define SHN_HIRESERVE 0xffff /* End of reserved indices */ + +/* Legal values for sh_type (section type). */ + +#define SHT_NULL 0 /* Section header table entry unused */ +#define SHT_PROGBITS 1 /* Program data */ +#define SHT_SYMTAB 2 /* Symbol table */ +#define SHT_STRTAB 3 /* String table */ +#define SHT_RELA 4 /* Relocation entries with addends */ +#define SHT_HASH 5 /* Symbol hash table */ +#define SHT_DYNAMIC 6 /* Dynamic linking information */ +#define SHT_NOTE 7 /* Notes */ +#define SHT_NOBITS 8 /* Program space with no data (bss) */ +#define SHT_REL 9 /* Relocation entries, no addends */ +#define SHT_SHLIB 10 /* Reserved */ +#define SHT_DYNSYM 11 /* Dynamic linker symbol table */ +#define SHT_INIT_ARRAY 14 /* Array of constructors */ +#define SHT_FINI_ARRAY 15 /* Array of destructors */ +#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ +#define SHT_GROUP 17 /* Section group */ +#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ +#define SHT_NUM 19 /* Number of defined types. */ +#define SHT_LOOS 0x60000000 /* Start OS-specific. */ +#define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes. */ +#define SHT_GNU_HASH 0x6ffffff6 /* GNU-style hash table. */ +#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ +#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ +#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ +#define SHT_SUNW_move 0x6ffffffa +#define SHT_SUNW_COMDAT 0x6ffffffb +#define SHT_SUNW_syminfo 0x6ffffffc +#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ +#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ +#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ +#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ +#define SHT_HIOS 0x6fffffff /* End OS-specific type */ +#define SHT_LOPROC 0x70000000 /* Start of processor-specific */ +#define SHT_HIPROC 0x7fffffff /* End of processor-specific */ +#define SHT_LOUSER 0x80000000 /* Start of application-specific */ +#define SHT_HIUSER 0x8fffffff /* End of application-specific */ + +/* Legal values for sh_flags (section flags). */ + +#define SHF_WRITE (1 << 0) /* Writable */ +#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ +#define SHF_EXECINSTR (1 << 2) /* Executable */ +#define SHF_MERGE (1 << 4) /* Might be merged */ +#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */ +#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */ +#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */ +#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling + required */ +#define SHF_GROUP (1 << 9) /* Section is member of a group. */ +#define SHF_TLS (1 << 10) /* Section hold thread-local data. */ +#define SHF_MASKOS 0x0ff00000 /* OS-specific. */ +#define SHF_MASKPROC 0xf0000000 /* Processor-specific */ +#define SHF_ORDERED (1 << 30) /* Special ordering requirement + (Solaris). */ +#define SHF_EXCLUDE (1 << 31) /* Section is excluded unless + referenced or allocated (Solaris).*/ + +/* Section group handling. */ +#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */ + +/* Symbol table entry. */ + +typedef struct elf32_sym +{ + Elf32_Word st_name; /* Symbol name (string tbl index) */ + Elf32_Addr st_value; /* Symbol value */ + Elf32_Word st_size; /* Symbol size */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* Symbol visibility */ + Elf32_Section st_shndx; /* Section index */ +} Elf32_Sym; + +typedef struct elf64_sym +{ + Elf64_Word st_name; /* Symbol name (string tbl index) */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* Symbol visibility */ + Elf64_Section st_shndx; /* Section index */ + Elf64_Addr st_value; /* Symbol value */ + Elf64_Xword st_size; /* Symbol size */ +} Elf64_Sym; + +/* The syminfo section if available contains additional information about + every dynamic symbol. */ + +typedef struct +{ + Elf32_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf32_Half si_flags; /* Per symbol flags */ +} Elf32_Syminfo; + +typedef struct +{ + Elf64_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf64_Half si_flags; /* Per symbol flags */ +} Elf64_Syminfo; + +/* Possible values for si_boundto. */ +#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ +#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ +#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ + +/* Possible bitmasks for si_flags. */ +#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ +#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ +#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ +#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy + loaded */ +/* Syminfo version values. */ +#define SYMINFO_NONE 0 +#define SYMINFO_CURRENT 1 +#define SYMINFO_NUM 2 + + +/* How to extract and insert information held in the st_info field. */ + +#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) +#define ELF32_ST_TYPE(val) ((val) & 0xf) +#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ +#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) +#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) +#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) +#define ELF_ST_TYPE(val) ELF32_ST_TYPE (val) +/* Legal values for ST_BIND subfield of st_info (symbol binding). */ + +#define STB_LOCAL 0 /* Local symbol */ +#define STB_GLOBAL 1 /* Global symbol */ +#define STB_WEAK 2 /* Weak symbol */ +#define STB_NUM 3 /* Number of defined types. */ +#define STB_LOOS 10 /* Start of OS-specific */ +#define STB_GNU_UNIQUE 10 /* Unique symbol. */ +#define STB_HIOS 12 /* End of OS-specific */ +#define STB_LOPROC 13 /* Start of processor-specific */ +#define STB_HIPROC 15 /* End of processor-specific */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_NOTYPE 0 /* Symbol type is unspecified */ +#define STT_OBJECT 1 /* Symbol is a data object */ +#define STT_FUNC 2 /* Symbol is a code object */ +#define STT_SECTION 3 /* Symbol associated with a section */ +#define STT_FILE 4 /* Symbol's name is file name */ +#define STT_COMMON 5 /* Symbol is a common data object */ +#define STT_TLS 6 /* Symbol is thread-local data object*/ +#define STT_NUM 7 /* Number of defined types. */ +#define STT_LOOS 10 /* Start of OS-specific */ +#define STT_GNU_IFUNC 10 /* Symbol is indirect code object */ +#define STT_HIOS 12 /* End of OS-specific */ +#define STT_LOPROC 13 /* Start of processor-specific */ +#define STT_HIPROC 15 /* End of processor-specific */ + + +/* Symbol table indices are found in the hash buckets and chain table + of a symbol hash table section. This special index value indicates + the end of a chain, meaning no further symbols are found in that bucket. */ + +#define STN_UNDEF 0 /* End of a chain. */ + + +/* How to extract and insert information held in the st_other field. */ + +#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) + +/* For ELF64 the definitions are the same. */ +#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) + +/* Symbol visibility specification encoded in the st_other field. */ +#define STV_DEFAULT 0 /* Default symbol visibility rules */ +#define STV_INTERNAL 1 /* Processor specific hidden class */ +#define STV_HIDDEN 2 /* Sym unavailable in other modules */ +#define STV_PROTECTED 3 /* Not preemptible, not exported */ + + +/* Relocation table entry without addend (in section of type SHT_REL). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ +} Elf32_Rel; + +/* I have seen two different definitions of the Elf64_Rel and + Elf64_Rela structures, so we'll leave them out until Novell (or + whoever) gets their act together. */ +/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ +} Elf64_Rel; + +/* Relocation table entry with addend (in section of type SHT_RELA). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ + Elf32_Sword r_addend; /* Addend */ +} Elf32_Rela; + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ + Elf64_Sxword r_addend; /* Addend */ +} Elf64_Rela; + +/* How to extract and insert information held in the r_info field. */ + +#define ELF32_R_SYM(val) ((val) >> 8) +#define ELF32_R_TYPE(val) ((val) & 0xff) +#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) #define ELF64_R_SYM(i) ((i) >> 32) #define ELF64_R_TYPE(i) ((i) & 0xffffffff) -#define ELF64_R_TYPE_DATA(i) (((ELF64_R_TYPE(i) >> 8) ^ 0x00800000) - 0x00800000) - -#define R_386_NONE 0 -#define R_386_32 1 -#define R_386_PC32 2 -#define R_386_GOT32 3 -#define R_386_PLT32 4 -#define R_386_COPY 5 -#define R_386_GLOB_DAT 6 -#define R_386_JMP_SLOT 7 -#define R_386_RELATIVE 8 -#define R_386_GOTOFF 9 -#define R_386_GOTPC 10 -#define R_386_NUM 11 -/* Not a dynamic reloc, so not included in R_386_NUM. Used in TCG. */ -#define R_386_PC8 23 - -#define R_MIPS_NONE 0 -#define R_MIPS_16 1 -#define R_MIPS_32 2 -#define R_MIPS_REL32 3 -#define R_MIPS_26 4 -#define R_MIPS_HI16 5 -#define R_MIPS_LO16 6 -#define R_MIPS_GPREL16 7 -#define R_MIPS_LITERAL 8 -#define R_MIPS_GOT16 9 -#define R_MIPS_PC16 10 -#define R_MIPS_CALL16 11 -#define R_MIPS_GPREL32 12 -/* The remaining relocs are defined on Irix, although they are not - in the MIPS ELF ABI. */ -#define R_MIPS_UNUSED1 13 -#define R_MIPS_UNUSED2 14 -#define R_MIPS_UNUSED3 15 -#define R_MIPS_SHIFT5 16 -#define R_MIPS_SHIFT6 17 -#define R_MIPS_64 18 -#define R_MIPS_GOT_DISP 19 -#define R_MIPS_GOT_PAGE 20 -#define R_MIPS_GOT_OFST 21 -/* - * The following two relocation types are specified in the MIPS ABI - * conformance guide version 1.2 but not yet in the psABI. - */ -#define R_MIPS_GOTHI16 22 -#define R_MIPS_GOTLO16 23 -#define R_MIPS_SUB 24 -#define R_MIPS_INSERT_A 25 -#define R_MIPS_INSERT_B 26 -#define R_MIPS_DELETE 27 -#define R_MIPS_HIGHER 28 -#define R_MIPS_HIGHEST 29 -/* - * The following two relocation types are specified in the MIPS ABI - * conformance guide version 1.2 but not yet in the psABI. - */ -#define R_MIPS_CALLHI16 30 -#define R_MIPS_CALLLO16 31 -/* - * This range is reserved for vendor specific relocations. - */ -#define R_MIPS_LOVENDOR 100 -#define R_MIPS_HIVENDOR 127 - - -/* - * Sparc ELF relocation types - */ -#define R_SPARC_NONE 0 -#define R_SPARC_8 1 -#define R_SPARC_16 2 -#define R_SPARC_32 3 -#define R_SPARC_DISP8 4 -#define R_SPARC_DISP16 5 -#define R_SPARC_DISP32 6 -#define R_SPARC_WDISP30 7 -#define R_SPARC_WDISP22 8 -#define R_SPARC_HI22 9 -#define R_SPARC_22 10 -#define R_SPARC_13 11 -#define R_SPARC_LO10 12 -#define R_SPARC_GOT10 13 -#define R_SPARC_GOT13 14 -#define R_SPARC_GOT22 15 -#define R_SPARC_PC10 16 -#define R_SPARC_PC22 17 -#define R_SPARC_WPLT30 18 -#define R_SPARC_COPY 19 -#define R_SPARC_GLOB_DAT 20 -#define R_SPARC_JMP_SLOT 21 -#define R_SPARC_RELATIVE 22 -#define R_SPARC_UA32 23 -#define R_SPARC_PLT32 24 -#define R_SPARC_HIPLT22 25 -#define R_SPARC_LOPLT10 26 -#define R_SPARC_PCPLT32 27 -#define R_SPARC_PCPLT22 28 -#define R_SPARC_PCPLT10 29 -#define R_SPARC_10 30 -#define R_SPARC_11 31 -#define R_SPARC_64 32 -#define R_SPARC_OLO10 33 -#define R_SPARC_HH22 34 -#define R_SPARC_HM10 35 -#define R_SPARC_LM22 36 -#define R_SPARC_WDISP16 40 -#define R_SPARC_WDISP19 41 -#define R_SPARC_7 43 -#define R_SPARC_5 44 -#define R_SPARC_6 45 - -/* Bits present in AT_HWCAP, primarily for Sparc32. */ - -#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */ -#define HWCAP_SPARC_STBAR 2 -#define HWCAP_SPARC_SWAP 4 -#define HWCAP_SPARC_MULDIV 8 -#define HWCAP_SPARC_V9 16 -#define HWCAP_SPARC_ULTRA3 32 +#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) + +/* Program segment header. */ + +typedef struct elf32_phdr +{ + Elf32_Word p_type; /* Segment type */ + Elf32_Off p_offset; /* Segment file offset */ + Elf32_Addr p_vaddr; /* Segment virtual address */ + Elf32_Addr p_paddr; /* Segment physical address */ + Elf32_Word p_filesz; /* Segment size in file */ + Elf32_Word p_memsz; /* Segment size in memory */ + Elf32_Word p_flags; /* Segment flags */ + Elf32_Word p_align; /* Segment alignment */ +} Elf32_Phdr; -/* - * 68k ELF relocation types - */ -#define R_68K_NONE 0 -#define R_68K_32 1 -#define R_68K_16 2 -#define R_68K_8 3 -#define R_68K_PC32 4 -#define R_68K_PC16 5 -#define R_68K_PC8 6 -#define R_68K_GOT32 7 -#define R_68K_GOT16 8 -#define R_68K_GOT8 9 -#define R_68K_GOT32O 10 -#define R_68K_GOT16O 11 -#define R_68K_GOT8O 12 -#define R_68K_PLT32 13 -#define R_68K_PLT16 14 -#define R_68K_PLT8 15 -#define R_68K_PLT32O 16 -#define R_68K_PLT16O 17 -#define R_68K_PLT8O 18 -#define R_68K_COPY 19 -#define R_68K_GLOB_DAT 20 -#define R_68K_JMP_SLOT 21 -#define R_68K_RELATIVE 22 - -/* - * Alpha ELF relocation types - */ -#define R_ALPHA_NONE 0 /* No reloc */ -#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ -#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ -#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ -#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ -#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ -#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ -#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ -#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ -#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ -#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ -#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ -#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ -#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ -#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ -#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ -#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ -#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ -#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ -#define R_ALPHA_BRSGP 28 -#define R_ALPHA_TLSGD 29 -#define R_ALPHA_TLS_LDM 30 -#define R_ALPHA_DTPMOD64 31 -#define R_ALPHA_GOTDTPREL 32 -#define R_ALPHA_DTPREL64 33 -#define R_ALPHA_DTPRELHI 34 -#define R_ALPHA_DTPRELLO 35 -#define R_ALPHA_DTPREL16 36 -#define R_ALPHA_GOTTPREL 37 -#define R_ALPHA_TPREL64 38 -#define R_ALPHA_TPRELHI 39 -#define R_ALPHA_TPRELLO 40 -#define R_ALPHA_TPREL16 41 +typedef struct elf64_phdr +{ + Elf64_Word p_type; /* Segment type */ + Elf64_Word p_flags; /* Segment flags */ + Elf64_Off p_offset; /* Segment file offset */ + Elf64_Addr p_vaddr; /* Segment virtual address */ + Elf64_Addr p_paddr; /* Segment physical address */ + Elf64_Xword p_filesz; /* Segment size in file */ + Elf64_Xword p_memsz; /* Segment size in memory */ + Elf64_Xword p_align; /* Segment alignment */ +} Elf64_Phdr; -#define SHF_ALPHA_GPREL 0x10000000 +/* Legal values for p_type (segment type). */ + +#define PT_NULL 0 /* Program header table entry unused */ +#define PT_LOAD 1 /* Loadable program segment */ +#define PT_DYNAMIC 2 /* Dynamic linking information */ +#define PT_INTERP 3 /* Program interpreter */ +#define PT_NOTE 4 /* Auxiliary information */ +#define PT_SHLIB 5 /* Reserved */ +#define PT_PHDR 6 /* Entry for header table itself */ +#define PT_TLS 7 /* Thread-local storage segment */ +#define PT_NUM 8 /* Number of defined types */ +#define PT_LOOS 0x60000000 /* Start of OS-specific */ +#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */ +#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */ +#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */ +#define PT_LOSUNW 0x6ffffffa +#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ +#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */ +#define PT_HISUNW 0x6fffffff +#define PT_HIOS 0x6fffffff /* End of OS-specific */ +#define PT_LOPROC 0x70000000 /* Start of processor-specific */ +#define PT_HIPROC 0x7fffffff /* End of processor-specific */ + +/* Legal values for p_flags (segment flags). */ + +#define PF_X (1 << 0) /* Segment is executable */ +#define PF_W (1 << 1) /* Segment is writable */ +#define PF_R (1 << 2) /* Segment is readable */ +#define PF_MASKOS 0x0ff00000 /* OS-specific */ +#define PF_MASKPROC 0xf0000000 /* Processor-specific */ + +/* Legal values for note segment descriptor types for core files. */ + +#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ +#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ +#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ +#define NT_PRXREG 4 /* Contains copy of prxregset struct */ +#define NT_TASKSTRUCT 4 /* Contains copy of task structure */ +#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */ +#define NT_AUXV 6 /* Contains copy of auxv array */ +#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */ +#define NT_ASRS 8 /* Contains copy of asrset struct */ +#define NT_PSTATUS 10 /* Contains copy of pstatus struct */ +#define NT_PSINFO 13 /* Contains copy of psinfo struct */ +#define NT_PRCRED 14 /* Contains copy of prcred struct */ +#define NT_UTSNAME 15 /* Contains copy of utsname struct */ +#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */ +#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */ +#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct */ +#define NT_PRXFPREG 0x46e62b7f /* Contains copy of user_fxsr_struct */ +#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */ +#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */ +#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */ +#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */ +#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */ + +/* Legal values for the note segment descriptor types for object files. */ + +#define NT_VERSION 1 /* Contains a version string. */ + + +/* Dynamic section entry. */ + +typedef struct +{ + Elf32_Sword d_tag; /* Dynamic entry type */ + union + { + Elf32_Word d_val; /* Integer value */ + Elf32_Addr d_ptr; /* Address value */ + } d_un; +} Elf32_Dyn; +typedef struct +{ + Elf64_Sxword d_tag; /* Dynamic entry type */ + union + { + Elf64_Xword d_val; /* Integer value */ + Elf64_Addr d_ptr; /* Address value */ + } d_un; +} Elf64_Dyn; -/* PowerPC relocations defined by the ABIs */ -#define R_PPC_NONE 0 -#define R_PPC_ADDR32 1 /* 32bit absolute address */ -#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ -#define R_PPC_ADDR16 3 /* 16bit absolute address */ -#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ -#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ -#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ -#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ -#define R_PPC_ADDR14_BRTAKEN 8 -#define R_PPC_ADDR14_BRNTAKEN 9 -#define R_PPC_REL24 10 /* PC relative 26 bit */ -#define R_PPC_REL14 11 /* PC relative 16 bit */ -#define R_PPC_REL14_BRTAKEN 12 -#define R_PPC_REL14_BRNTAKEN 13 -#define R_PPC_GOT16 14 -#define R_PPC_GOT16_LO 15 -#define R_PPC_GOT16_HI 16 -#define R_PPC_GOT16_HA 17 -#define R_PPC_PLTREL24 18 -#define R_PPC_COPY 19 -#define R_PPC_GLOB_DAT 20 -#define R_PPC_JMP_SLOT 21 -#define R_PPC_RELATIVE 22 -#define R_PPC_LOCAL24PC 23 -#define R_PPC_UADDR32 24 -#define R_PPC_UADDR16 25 -#define R_PPC_REL32 26 -#define R_PPC_PLT32 27 -#define R_PPC_PLTREL32 28 -#define R_PPC_PLT16_LO 29 -#define R_PPC_PLT16_HI 30 -#define R_PPC_PLT16_HA 31 -#define R_PPC_SDAREL16 32 -#define R_PPC_SECTOFF 33 -#define R_PPC_SECTOFF_LO 34 -#define R_PPC_SECTOFF_HI 35 -#define R_PPC_SECTOFF_HA 36 -/* Keep this the last entry. */ -#ifndef R_PPC_NUM -#define R_PPC_NUM 37 -#endif +/* Legal values for d_tag (dynamic entry type). */ + +#define DT_NULL 0 /* Marks end of dynamic section */ +#define DT_NEEDED 1 /* Name of needed library */ +#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ +#define DT_PLTGOT 3 /* Processor defined value */ +#define DT_HASH 4 /* Address of symbol hash table */ +#define DT_STRTAB 5 /* Address of string table */ +#define DT_SYMTAB 6 /* Address of symbol table */ +#define DT_RELA 7 /* Address of Rela relocs */ +#define DT_RELASZ 8 /* Total size of Rela relocs */ +#define DT_RELAENT 9 /* Size of one Rela reloc */ +#define DT_STRSZ 10 /* Size of string table */ +#define DT_SYMENT 11 /* Size of one symbol table entry */ +#define DT_INIT 12 /* Address of init function */ +#define DT_FINI 13 /* Address of termination function */ +#define DT_SONAME 14 /* Name of shared object */ +#define DT_RPATH 15 /* Library search path (deprecated) */ +#define DT_SYMBOLIC 16 /* Start symbol search here */ +#define DT_REL 17 /* Address of Rel relocs */ +#define DT_RELSZ 18 /* Total size of Rel relocs */ +#define DT_RELENT 19 /* Size of one Rel reloc */ +#define DT_PLTREL 20 /* Type of reloc in PLT */ +#define DT_DEBUG 21 /* For debugging; unspecified */ +#define DT_TEXTREL 22 /* Reloc might modify .text */ +#define DT_JMPREL 23 /* Address of PLT relocs */ +#define DT_BIND_NOW 24 /* Process relocations of object */ +#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ +#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ +#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ +#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ +#define DT_RUNPATH 29 /* Library search path */ +#define DT_FLAGS 30 /* Flags for the object being loaded */ +#define DT_ENCODING 32 /* Start of encoded range */ +#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ +#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ +#define DT_NUM 34 /* Number used */ +#define DT_LOOS 0x6000000d /* Start of OS-specific */ +#define DT_HIOS 0x6ffff000 /* End of OS-specific */ +#define DT_LOPROC 0x70000000 /* Start of processor-specific */ +#define DT_HIPROC 0x7fffffff /* End of processor-specific */ +#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ + +/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the + Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's + approach. */ +#define DT_VALRNGLO 0x6ffffd00 +#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ +#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ +#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ +#define DT_CHECKSUM 0x6ffffdf8 +#define DT_PLTPADSZ 0x6ffffdf9 +#define DT_MOVEENT 0x6ffffdfa +#define DT_MOVESZ 0x6ffffdfb +#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ +#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting + the following DT_* entry. */ +#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ +#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ +#define DT_VALRNGHI 0x6ffffdff +#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ +#define DT_VALNUM 12 + +/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the + Dyn.d_un.d_ptr field of the Elf*_Dyn structure. + + If any adjustment is made to the ELF object after it has been + built these entries will need to be adjusted. */ +#define DT_ADDRRNGLO 0x6ffffe00 +#define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table. */ +#define DT_TLSDESC_PLT 0x6ffffef6 +#define DT_TLSDESC_GOT 0x6ffffef7 +#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ +#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ +#define DT_CONFIG 0x6ffffefa /* Configuration information. */ +#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ +#define DT_AUDIT 0x6ffffefc /* Object auditing. */ +#define DT_PLTPAD 0x6ffffefd /* PLT padding. */ +#define DT_MOVETAB 0x6ffffefe /* Move table. */ +#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ +#define DT_ADDRRNGHI 0x6ffffeff +#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ +#define DT_ADDRNUM 11 + +/* The versioning entry types. The next are defined as part of the + GNU extension. */ +#define DT_VERSYM 0x6ffffff0 + +#define DT_RELACOUNT 0x6ffffff9 +#define DT_RELCOUNT 0x6ffffffa + +/* These were chosen by Sun. */ +#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ +#define DT_VERDEF 0x6ffffffc /* Address of version definition + table */ +#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ +#define DT_VERNEED 0x6ffffffe /* Address of table with needed + versions */ +#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ +#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ +#define DT_VERSIONTAGNUM 16 + +/* Sun added these machine-independent extensions in the "processor-specific" + range. Be compatible. */ +#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ +#define DT_FILTER 0x7fffffff /* Shared object to get values from */ +#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) +#define DT_EXTRANUM 3 + +/* Values of `d_un.d_val' in the DT_FLAGS entry. */ +#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */ +#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */ +#define DF_TEXTREL 0x00000004 /* Object contains text relocations */ +#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */ +#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */ + +/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 + entry in the dynamic section. */ +#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */ +#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */ +#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */ +#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/ +#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/ +#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/ +#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */ +#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */ +#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */ +#define DF_1_TRANS 0x00000200 +#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */ +#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */ +#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */ +#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/ +#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ +#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ +#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ + +/* Flags for the feature selection in DT_FEATURE_1. */ +#define DTF_1_PARINIT 0x00000001 +#define DTF_1_CONFEXP 0x00000002 + +/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */ +#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */ +#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not + generally available. */ + +/* Version definition sections. */ + +typedef struct +{ + Elf32_Half vd_version; /* Version revision */ + Elf32_Half vd_flags; /* Version information */ + Elf32_Half vd_ndx; /* Version Index */ + Elf32_Half vd_cnt; /* Number of associated aux entries */ + Elf32_Word vd_hash; /* Version name hash value */ + Elf32_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf32_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf32_Verdef; + +typedef struct +{ + Elf64_Half vd_version; /* Version revision */ + Elf64_Half vd_flags; /* Version information */ + Elf64_Half vd_ndx; /* Version Index */ + Elf64_Half vd_cnt; /* Number of associated aux entries */ + Elf64_Word vd_hash; /* Version name hash value */ + Elf64_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf64_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf64_Verdef; + + +/* Legal values for vd_version (version revision). */ +#define VER_DEF_NONE 0 /* No version */ +#define VER_DEF_CURRENT 1 /* Current version */ +#define VER_DEF_NUM 2 /* Given version number */ + +/* Legal values for vd_flags (version information flags). */ +#define VER_FLG_BASE 0x1 /* Version definition of file itself */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + +/* Versym symbol index values. */ +#define VER_NDX_LOCAL 0 /* Symbol is local. */ +#define VER_NDX_GLOBAL 1 /* Symbol is global. */ +#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */ +#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */ + +/* Auxialiary version information. */ + +typedef struct +{ + Elf32_Word vda_name; /* Version or dependency names */ + Elf32_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf32_Verdaux; + +typedef struct +{ + Elf64_Word vda_name; /* Version or dependency names */ + Elf64_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf64_Verdaux; + + +/* Version dependency section. */ + +typedef struct +{ + Elf32_Half vn_version; /* Version of structure */ + Elf32_Half vn_cnt; /* Number of associated aux entries */ + Elf32_Word vn_file; /* Offset of filename for this + dependency */ + Elf32_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf32_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf32_Verneed; + +typedef struct +{ + Elf64_Half vn_version; /* Version of structure */ + Elf64_Half vn_cnt; /* Number of associated aux entries */ + Elf64_Word vn_file; /* Offset of filename for this + dependency */ + Elf64_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf64_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf64_Verneed; + + +/* Legal values for vn_version (version revision). */ +#define VER_NEED_NONE 0 /* No version */ +#define VER_NEED_CURRENT 1 /* Current version */ +#define VER_NEED_NUM 2 /* Given version number */ + +/* Auxiliary needed version information. */ + +typedef struct +{ + Elf32_Word vna_hash; /* Hash value of dependency name */ + Elf32_Half vna_flags; /* Dependency specific information */ + Elf32_Half vna_other; /* Unused */ + Elf32_Word vna_name; /* Dependency name string offset */ + Elf32_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf32_Vernaux; + +typedef struct +{ + Elf64_Word vna_hash; /* Hash value of dependency name */ + Elf64_Half vna_flags; /* Dependency specific information */ + Elf64_Half vna_other; /* Unused */ + Elf64_Word vna_name; /* Dependency name string offset */ + Elf64_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf64_Vernaux; + + +/* Legal values for vna_flags. */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + + +/* Auxiliary vector. */ + +/* This vector is normally only used by the program interpreter. The + usual definition in an ABI supplement uses the name auxv_t. The + vector is not usually defined in a standard <elf.h> file, but it + can't hurt. We rename it to avoid conflicts. The sizes of these + types are an arrangement between the exec server and the program + interpreter, so we don't fully specify them here. */ + +typedef struct +{ + uint32_t a_type; /* Entry type */ + union + { + uint32_t a_val; /* Integer value */ + /* We use to have pointer elements added here. We cannot do that, + though, since it does not work when using 32-bit definitions + on 64-bit platforms and vice versa. */ + } a_un; +} Elf32_auxv_t; + +typedef struct +{ + uint64_t a_type; /* Entry type */ + union + { + uint64_t a_val; /* Integer value */ + /* We use to have pointer elements added here. We cannot do that, + though, since it does not work when using 32-bit definitions + on 64-bit platforms and vice versa. */ + } a_un; +} Elf64_auxv_t; + +/* Legal values for a_type (entry type). */ + +#define AT_NULL 0 /* End of vector */ +#define AT_IGNORE 1 /* Entry should be ignored */ +#define AT_EXECFD 2 /* File descriptor of program */ +#define AT_PHDR 3 /* Program headers for program */ +#define AT_PHENT 4 /* Size of program header entry */ +#define AT_PHNUM 5 /* Number of program headers */ +#define AT_PAGESZ 6 /* System page size */ +#define AT_BASE 7 /* Base address of interpreter */ +#define AT_FLAGS 8 /* Flags */ +#define AT_ENTRY 9 /* Entry point of program */ +#define AT_NOTELF 10 /* Program is not ELF */ +#define AT_UID 11 /* Real uid */ +#define AT_EUID 12 /* Effective uid */ +#define AT_GID 13 /* Real gid */ +#define AT_EGID 14 /* Effective gid */ +#define AT_CLKTCK 17 /* Frequency of times() */ + +/* Some more special a_type values describing the hardware. */ +#define AT_PLATFORM 15 /* String identifying platform. */ +#define AT_HWCAP 16 /* Machine dependent hints about + processor capabilities. */ + +/* This entry gives some information about the FPU initialization + performed by the kernel. */ +#define AT_FPUCW 18 /* Used FPU control word. */ + +/* Cache block sizes. */ +#define AT_DCACHEBSIZE 19 /* Data cache block size. */ +#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ +#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ + +/* A special ignored value for PPC, used by the kernel to control the + interpretation of the AUXV. Must be > 16. */ +#define AT_IGNOREPPC 22 /* Entry should be ignored. */ + +#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ + +#define AT_BASE_PLATFORM 24 /* String identifying real platforms.*/ + +#define AT_RANDOM 25 /* Address of 16 random bytes. */ + +#define AT_EXECFN 31 /* Filename of executable. */ + +/* Pointer to the global system page used for system calls and other + nice things. */ +#define AT_SYSINFO 32 +#define AT_SYSINFO_EHDR 33 + +/* Shapes of the caches. Bits 0-3 contains associativity; bits 4-7 contains + log2 of line size; mask those to get cache size. */ +#define AT_L1I_CACHESHAPE 34 +#define AT_L1D_CACHESHAPE 35 +#define AT_L2_CACHESHAPE 36 +#define AT_L3_CACHESHAPE 37 + +/* Note section contents. Each entry in the note section begins with + a header of a fixed form. */ + +typedef struct elf32_note +{ + Elf32_Word n_namesz; /* Length of the note's name. */ + Elf32_Word n_descsz; /* Length of the note's descriptor. */ + Elf32_Word n_type; /* Type of the note. */ +} Elf32_Nhdr; -/* ARM specific declarations */ +typedef struct elf64_note +{ + Elf64_Word n_namesz; /* Length of the note's name. */ + Elf64_Word n_descsz; /* Length of the note's descriptor. */ + Elf64_Word n_type; /* Type of the note. */ +} Elf64_Nhdr; -/* Processor specific flags for the ELF header e_flags field. */ -#define EF_ARM_RELEXEC 0x01 -#define EF_ARM_HASENTRY 0x02 -#define EF_ARM_INTERWORK 0x04 -#define EF_ARM_APCS_26 0x08 -#define EF_ARM_APCS_FLOAT 0x10 -#define EF_ARM_PIC 0x20 -#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */ -#define EF_NEW_ABI 0x80 -#define EF_OLD_ABI 0x100 - -/* Additional symbol types for Thumb */ -#define STT_ARM_TFUNC 0xd +/* Known names of notes. */ + +/* Solaris entries in the note section have this name. */ +#define ELF_NOTE_SOLARIS "SUNW Solaris" + +/* Note entries for GNU systems have this name. */ +#define ELF_NOTE_GNU "GNU" + + +/* Defined types of notes for Solaris. */ + +/* Value of descriptor (one word) is desired pagesize for the binary. */ +#define ELF_NOTE_PAGESIZE_HINT 1 + + +/* Defined note types for GNU systems. */ + +/* ABI information. The descriptor consists of words: + word 0: OS descriptor + word 1: major version of the ABI + word 2: minor version of the ABI + word 3: subminor version of the ABI +*/ +#define NT_GNU_ABI_TAG 1 +#define ELF_NOTE_ABI NT_GNU_ABI_TAG /* Old name. */ + +/* Known OSes. These values can appear in word 0 of an + NT_GNU_ABI_TAG note section entry. */ +#define ELF_NOTE_OS_LINUX 0 +#define ELF_NOTE_OS_GNU 1 +#define ELF_NOTE_OS_SOLARIS2 2 +#define ELF_NOTE_OS_FREEBSD 3 + +/* Synthetic hwcap information. The descriptor begins with two words: + word 0: number of entries + word 1: bitmask of enabled entries + Then follow variable-length entries, one byte followed by a + '\0'-terminated hwcap name string. The byte gives the bit + number to test if enabled, (1U << bit) & bitmask. */ +#define NT_GNU_HWCAP 2 + +/* Build ID bits as generated by ld --build-id. + The descriptor consists of any nonzero number of bytes. */ +#define NT_GNU_BUILD_ID 3 + +/* Version note generated by GNU gold containing a version string. */ +#define NT_GNU_GOLD_VERSION 4 + + +/* Move records. */ +typedef struct +{ + Elf32_Xword m_value; /* Symbol value. */ + Elf32_Word m_info; /* Size and index. */ + Elf32_Word m_poffset; /* Symbol offset. */ + Elf32_Half m_repeat; /* Repeat count. */ + Elf32_Half m_stride; /* Stride info. */ +} Elf32_Move; + +typedef struct +{ + Elf64_Xword m_value; /* Symbol value. */ + Elf64_Xword m_info; /* Size and index. */ + Elf64_Xword m_poffset; /* Symbol offset. */ + Elf64_Half m_repeat; /* Repeat count. */ + Elf64_Half m_stride; /* Stride info. */ +} Elf64_Move; + +/* Macro to construct move records. */ +#define ELF32_M_SYM(info) ((info) >> 8) +#define ELF32_M_SIZE(info) ((unsigned char) (info)) +#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) + +#define ELF64_M_SYM(info) ELF32_M_SYM (info) +#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) +#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) + + +/* Motorola 68k specific definitions. */ + +/* Values for Elf32_Ehdr.e_flags. */ +#define EF_CPU32 0x00810000 + +/* m68k relocs. */ + +#define R_68K_NONE 0 /* No reloc */ +#define R_68K_32 1 /* Direct 32 bit */ +#define R_68K_16 2 /* Direct 16 bit */ +#define R_68K_8 3 /* Direct 8 bit */ +#define R_68K_PC32 4 /* PC relative 32 bit */ +#define R_68K_PC16 5 /* PC relative 16 bit */ +#define R_68K_PC8 6 /* PC relative 8 bit */ +#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ +#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ +#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ +#define R_68K_GOT32O 10 /* 32 bit GOT offset */ +#define R_68K_GOT16O 11 /* 16 bit GOT offset */ +#define R_68K_GOT8O 12 /* 8 bit GOT offset */ +#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ +#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ +#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ +#define R_68K_PLT32O 16 /* 32 bit PLT offset */ +#define R_68K_PLT16O 17 /* 16 bit PLT offset */ +#define R_68K_PLT8O 18 /* 8 bit PLT offset */ +#define R_68K_COPY 19 /* Copy symbol at runtime */ +#define R_68K_GLOB_DAT 20 /* Create GOT entry */ +#define R_68K_JMP_SLOT 21 /* Create PLT entry */ +#define R_68K_RELATIVE 22 /* Adjust by program base */ +/* Keep this the last entry. */ +#define R_68K_NUM 23 + +/* Intel 80386 specific definitions. */ + +/* i386 relocs. */ + +#define R_386_NONE 0 /* No reloc */ +#define R_386_32 1 /* Direct 32 bit */ +#define R_386_PC32 2 /* PC relative 32 bit */ +#define R_386_GOT32 3 /* 32 bit GOT entry */ +#define R_386_PLT32 4 /* 32 bit PLT address */ +#define R_386_COPY 5 /* Copy symbol at runtime */ +#define R_386_GLOB_DAT 6 /* Create GOT entry */ +#define R_386_JMP_SLOT 7 /* Create PLT entry */ +#define R_386_RELATIVE 8 /* Adjust by program base */ +#define R_386_GOTOFF 9 /* 32 bit offset to GOT */ +#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ +#define R_386_32PLT 11 +#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ +#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS + block offset */ +#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block + offset */ +#define R_386_TLS_LE 17 /* Offset relative to static TLS + block */ +#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of + general dynamic thread local data */ +#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of + local dynamic thread local data + in LE code */ +#define R_386_16 20 +#define R_386_PC16 21 +#define R_386_8 22 +#define R_386_PC8 23 +#define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic + thread local data */ +#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ +#define R_386_TLS_GD_CALL 26 /* Relocation for call to + __tls_get_addr() */ +#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ +#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic + thread local data in LE code */ +#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ +#define R_386_TLS_LDM_CALL 30 /* Relocation for call to + __tls_get_addr() in LDM code */ +#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ +#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ +#define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS + block offset */ +#define R_386_TLS_LE_32 34 /* Negated offset relative to static + TLS block */ +#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ +#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ +#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ +/* 38? */ +#define R_386_TLS_GOTDESC 39 /* GOT offset for TLS descriptor. */ +#define R_386_TLS_DESC_CALL 40 /* Marker of call through TLS + descriptor for + relaxation. */ +#define R_386_TLS_DESC 41 /* TLS descriptor containing + pointer to code and to + argument, returning the TLS + offset for the symbol. */ +#define R_386_IRELATIVE 42 /* Adjust indirectly by program base */ +/* Keep this the last entry. */ +#define R_386_NUM 43 -/* ARM-specific values for sh_flags */ -#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ -#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined - in the input to a link step */ +/* SUN SPARC specific definitions. */ -/* ARM-specific program header flags */ -#define PF_ARM_SB 0x10000000 /* Segment contains the location - addressed by the static base */ +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ -/* ARM relocs. */ -#define R_ARM_NONE 0 /* No reloc */ -#define R_ARM_PC24 1 /* PC relative 26 bit branch */ -#define R_ARM_ABS32 2 /* Direct 32 bit */ -#define R_ARM_REL32 3 /* PC relative 32 bit */ -#define R_ARM_PC13 4 -#define R_ARM_ABS16 5 /* Direct 16 bit */ -#define R_ARM_ABS12 6 /* Direct 12 bit */ -#define R_ARM_THM_ABS5 7 -#define R_ARM_ABS8 8 /* Direct 8 bit */ -#define R_ARM_SBREL32 9 -#define R_ARM_THM_PC22 10 -#define R_ARM_THM_PC8 11 -#define R_ARM_AMP_VCALL9 12 -#define R_ARM_SWI24 13 -#define R_ARM_THM_SWI8 14 -#define R_ARM_XPC25 15 -#define R_ARM_THM_XPC22 16 -#define R_ARM_COPY 20 /* Copy symbol at runtime */ -#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ -#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ -#define R_ARM_RELATIVE 23 /* Adjust by program base */ -#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ -#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ -#define R_ARM_GOT32 26 /* 32 bit GOT entry */ -#define R_ARM_PLT32 27 /* 32 bit PLT address */ -#define R_ARM_CALL 28 -#define R_ARM_JUMP24 29 -#define R_ARM_GNU_VTENTRY 100 -#define R_ARM_GNU_VTINHERIT 101 -#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ -#define R_ARM_THM_PC9 103 /* thumb conditional branch */ -#define R_ARM_RXPC25 249 -#define R_ARM_RSBREL32 250 -#define R_ARM_THM_RPC22 251 -#define R_ARM_RREL32 252 -#define R_ARM_RABS22 253 -#define R_ARM_RPC24 254 -#define R_ARM_RBASE 255 +#define STT_SPARC_REGISTER 13 /* Global register reserved to app. */ + +/* Values for Elf64_Ehdr.e_flags. */ + +#define EF_SPARCV9_MM 3 +#define EF_SPARCV9_TSO 0 +#define EF_SPARCV9_PSO 1 +#define EF_SPARCV9_RMO 2 +#define EF_SPARC_LEDATA 0x800000 /* little endian data */ +#define EF_SPARC_EXT_MASK 0xFFFF00 +#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */ +#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */ +#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */ +#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */ + +/* SPARC relocs. */ + +#define R_SPARC_NONE 0 /* No reloc */ +#define R_SPARC_8 1 /* Direct 8 bit */ +#define R_SPARC_16 2 /* Direct 16 bit */ +#define R_SPARC_32 3 /* Direct 32 bit */ +#define R_SPARC_DISP8 4 /* PC relative 8 bit */ +#define R_SPARC_DISP16 5 /* PC relative 16 bit */ +#define R_SPARC_DISP32 6 /* PC relative 32 bit */ +#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ +#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ +#define R_SPARC_HI22 9 /* High 22 bit */ +#define R_SPARC_22 10 /* Direct 22 bit */ +#define R_SPARC_13 11 /* Direct 13 bit */ +#define R_SPARC_LO10 12 /* Truncated 10 bit */ +#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ +#define R_SPARC_GOT13 14 /* 13 bit GOT entry */ +#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ +#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ +#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ +#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ +#define R_SPARC_COPY 19 /* Copy symbol at runtime */ +#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ +#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ +#define R_SPARC_RELATIVE 22 /* Adjust by program base */ +#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ + +/* Additional Sparc64 relocs. */ + +#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */ +#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */ +#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */ +#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */ +#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */ +#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */ +#define R_SPARC_10 30 /* Direct 10 bit */ +#define R_SPARC_11 31 /* Direct 11 bit */ +#define R_SPARC_64 32 /* Direct 64 bit */ +#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */ +#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */ +#define R_SPARC_HM10 35 /* High middle 10 bits of ... */ +#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */ +#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */ +#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */ +#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */ +#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */ +#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */ +#define R_SPARC_GLOB_JMP 42 /* was part of v9 ABI but was removed */ +#define R_SPARC_7 43 /* Direct 7 bit */ +#define R_SPARC_5 44 /* Direct 5 bit */ +#define R_SPARC_6 45 /* Direct 6 bit */ +#define R_SPARC_DISP64 46 /* PC relative 64 bit */ +#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */ +#define R_SPARC_HIX22 48 /* High 22 bit complemented */ +#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */ +#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */ +#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */ +#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */ +#define R_SPARC_REGISTER 53 /* Global register usage */ +#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */ +#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */ +#define R_SPARC_TLS_GD_HI22 56 +#define R_SPARC_TLS_GD_LO10 57 +#define R_SPARC_TLS_GD_ADD 58 +#define R_SPARC_TLS_GD_CALL 59 +#define R_SPARC_TLS_LDM_HI22 60 +#define R_SPARC_TLS_LDM_LO10 61 +#define R_SPARC_TLS_LDM_ADD 62 +#define R_SPARC_TLS_LDM_CALL 63 +#define R_SPARC_TLS_LDO_HIX22 64 +#define R_SPARC_TLS_LDO_LOX10 65 +#define R_SPARC_TLS_LDO_ADD 66 +#define R_SPARC_TLS_IE_HI22 67 +#define R_SPARC_TLS_IE_LO10 68 +#define R_SPARC_TLS_IE_LD 69 +#define R_SPARC_TLS_IE_LDX 70 +#define R_SPARC_TLS_IE_ADD 71 +#define R_SPARC_TLS_LE_HIX22 72 +#define R_SPARC_TLS_LE_LOX10 73 +#define R_SPARC_TLS_DTPMOD32 74 +#define R_SPARC_TLS_DTPMOD64 75 +#define R_SPARC_TLS_DTPOFF32 76 +#define R_SPARC_TLS_DTPOFF64 77 +#define R_SPARC_TLS_TPOFF32 78 +#define R_SPARC_TLS_TPOFF64 79 +#define R_SPARC_GOTDATA_HIX22 80 +#define R_SPARC_GOTDATA_LOX10 81 +#define R_SPARC_GOTDATA_OP_HIX22 82 +#define R_SPARC_GOTDATA_OP_LOX10 83 +#define R_SPARC_GOTDATA_OP 84 +#define R_SPARC_H34 85 +#define R_SPARC_SIZE32 86 +#define R_SPARC_SIZE64 87 +#define R_SPARC_GNU_VTINHERIT 250 +#define R_SPARC_GNU_VTENTRY 251 +#define R_SPARC_REV32 252 /* Keep this the last entry. */ -#define R_ARM_NUM 256 +#define R_SPARC_NUM 253 -/* s390 relocations defined by the ABIs */ -#define R_390_NONE 0 /* No reloc. */ -#define R_390_8 1 /* Direct 8 bit. */ -#define R_390_12 2 /* Direct 12 bit. */ -#define R_390_16 3 /* Direct 16 bit. */ -#define R_390_32 4 /* Direct 32 bit. */ -#define R_390_PC32 5 /* PC relative 32 bit. */ -#define R_390_GOT12 6 /* 12 bit GOT offset. */ -#define R_390_GOT32 7 /* 32 bit GOT offset. */ -#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ -#define R_390_COPY 9 /* Copy symbol at runtime. */ -#define R_390_GLOB_DAT 10 /* Create GOT entry. */ -#define R_390_JMP_SLOT 11 /* Create PLT entry. */ -#define R_390_RELATIVE 12 /* Adjust by program base. */ -#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ -#define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */ -#define R_390_GOT16 15 /* 16 bit GOT offset. */ -#define R_390_PC16 16 /* PC relative 16 bit. */ -#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ -#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ -#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ -#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ -#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ -#define R_390_64 22 /* Direct 64 bit. */ -#define R_390_PC64 23 /* PC relative 64 bit. */ -#define R_390_GOT64 24 /* 64 bit GOT offset. */ -#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ -#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ -#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ -#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ -#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ -#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ -#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ -#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ -#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ -#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ -#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ -#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ -#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ -#define R_390_TLS_GDCALL 38 /* Tag for function call in general - dynamic TLS code. */ -#define R_390_TLS_LDCALL 39 /* Tag for function call in local - dynamic TLS code. */ -#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic - thread local data. */ -#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic - thread local data. */ -#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS - block offset. */ -#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS - block offset. */ -#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS - block offset. */ -#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic - thread local data in LD code. */ -#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic - thread local data in LD code. */ -#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for - negated static TLS block offset. */ -#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for - negated static TLS block offset. */ -#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for - negated static TLS block offset. */ -#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to - static TLS block. */ -#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to - static TLS block. */ -#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS - block. */ -#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS - block. */ -#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ -#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ -#define R_390_TLS_TPOFF 56 /* Negate offset in static TLS - block. */ -/* Keep this the last entry. */ -#define R_390_NUM 57 +/* For Sparc64, legal values for d_tag of Elf64_Dyn. */ -/* x86-64 relocation types */ -#define R_X86_64_NONE 0 /* No reloc */ -#define R_X86_64_64 1 /* Direct 64 bit */ -#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ -#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ -#define R_X86_64_PLT32 4 /* 32 bit PLT address */ -#define R_X86_64_COPY 5 /* Copy symbol at runtime */ -#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ -#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ -#define R_X86_64_RELATIVE 8 /* Adjust by program base */ -#define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative - offset to GOT */ -#define R_X86_64_32 10 /* Direct 32 bit zero extended */ -#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ -#define R_X86_64_16 12 /* Direct 16 bit zero extended */ -#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ -#define R_X86_64_8 14 /* Direct 8 bit sign extended */ -#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ +#define DT_SPARC_REGISTER 0x70000001 +#define DT_SPARC_NUM 2 -#define R_X86_64_NUM 16 +/* Bits present in AT_HWCAP on SPARC. */ -/* Legal values for e_flags field of Elf64_Ehdr. */ +#define HWCAP_SPARC_FLUSH 1 /* The CPU supports flush insn. */ +#define HWCAP_SPARC_STBAR 2 +#define HWCAP_SPARC_SWAP 4 +#define HWCAP_SPARC_MULDIV 8 +#define HWCAP_SPARC_V9 16 /* The CPU is v9, so v8plus is ok. */ +#define HWCAP_SPARC_ULTRA3 32 +#define HWCAP_SPARC_BLKINIT 64 /* Sun4v with block-init/load-twin. */ +#define HWCAP_SPARC_N2 128 + +/* MIPS R3000 specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ +#define EF_MIPS_PIC 2 /* Contains PIC code */ +#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ +#define EF_MIPS_XGOT 8 +#define EF_MIPS_64BIT_WHIRL 16 +#define EF_MIPS_ABI2 32 +#define EF_MIPS_ABI_ON32 64 +#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ + +/* Legal values for MIPS architecture level. */ + +#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* The following are non-official names and should not be used. */ + +#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* Special section indices. */ + +#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ +#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ +#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ +#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ +#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ +#define SHT_MIPS_MSYM 0x70000001 +#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ +#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ +#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ +#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/ +#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ +#define SHT_MIPS_PACKAGE 0x70000007 +#define SHT_MIPS_PACKSYM 0x70000008 +#define SHT_MIPS_RELD 0x70000009 +#define SHT_MIPS_IFACE 0x7000000b +#define SHT_MIPS_CONTENT 0x7000000c +#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ +#define SHT_MIPS_SHDR 0x70000010 +#define SHT_MIPS_FDESC 0x70000011 +#define SHT_MIPS_EXTSYM 0x70000012 +#define SHT_MIPS_DENSE 0x70000013 +#define SHT_MIPS_PDESC 0x70000014 +#define SHT_MIPS_LOCSYM 0x70000015 +#define SHT_MIPS_AUXSYM 0x70000016 +#define SHT_MIPS_OPTSYM 0x70000017 +#define SHT_MIPS_LOCSTR 0x70000018 +#define SHT_MIPS_LINE 0x70000019 +#define SHT_MIPS_RFDESC 0x7000001a +#define SHT_MIPS_DELTASYM 0x7000001b +#define SHT_MIPS_DELTAINST 0x7000001c +#define SHT_MIPS_DELTACLASS 0x7000001d +#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ +#define SHT_MIPS_DELTADECL 0x7000001f +#define SHT_MIPS_SYMBOL_LIB 0x70000020 +#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ +#define SHT_MIPS_TRANSLATE 0x70000022 +#define SHT_MIPS_PIXIE 0x70000023 +#define SHT_MIPS_XLATE 0x70000024 +#define SHT_MIPS_XLATE_DEBUG 0x70000025 +#define SHT_MIPS_WHIRL 0x70000026 +#define SHT_MIPS_EH_REGION 0x70000027 +#define SHT_MIPS_XLATE_OLD 0x70000028 +#define SHT_MIPS_PDR_EXCEPTION 0x70000029 + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ +#define SHF_MIPS_MERGE 0x20000000 +#define SHF_MIPS_ADDR 0x40000000 +#define SHF_MIPS_STRINGS 0x80000000 +#define SHF_MIPS_NOSTRIP 0x08000000 +#define SHF_MIPS_LOCAL 0x04000000 +#define SHF_MIPS_NAMES 0x02000000 +#define SHF_MIPS_NODUPE 0x01000000 + + +/* Symbol tables. */ + +/* MIPS specific values for `st_other'. */ +#define STO_MIPS_DEFAULT 0x0 +#define STO_MIPS_INTERNAL 0x1 +#define STO_MIPS_HIDDEN 0x2 +#define STO_MIPS_PROTECTED 0x3 +#define STO_MIPS_PLT 0x8 +#define STO_MIPS_SC_ALIGN_UNUSED 0xff + +/* MIPS specific values for `st_info'. */ +#define STB_MIPS_SPLIT_COMMON 13 + +/* Entries found in sections of type SHT_MIPS_GPTAB. */ + +typedef union +{ + struct + { + Elf32_Word gt_current_g_value; /* -G value used for compilation */ + Elf32_Word gt_unused; /* Not used */ + } gt_header; /* First entry in section */ + struct + { + Elf32_Word gt_g_value; /* If this value were used for -G */ + Elf32_Word gt_bytes; /* This many bytes would be used */ + } gt_entry; /* Subsequent entries in section */ +} Elf32_gptab; + +/* Entry found in sections of type SHT_MIPS_REGINFO. */ + +typedef struct +{ + Elf32_Word ri_gprmask; /* General registers used */ + Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ + Elf32_Sword ri_gp_value; /* $gp register value */ +} Elf32_RegInfo; + +/* Entries found in sections of type SHT_MIPS_OPTIONS. */ + +typedef struct +{ + unsigned char kind; /* Determines interpretation of the + variable part of descriptor. */ + unsigned char size; /* Size of descriptor, including header. */ + Elf32_Section section; /* Section header index of section affected, + 0 for global options. */ + Elf32_Word info; /* Kind-specific information. */ +} Elf_Options; + +/* Values for `kind' field in Elf_Options. */ + +#define ODK_NULL 0 /* Undefined. */ +#define ODK_REGINFO 1 /* Register usage information. */ +#define ODK_EXCEPTIONS 2 /* Exception processing options. */ +#define ODK_PAD 3 /* Section padding options. */ +#define ODK_HWPATCH 4 /* Hardware workarounds performed */ +#define ODK_FILL 5 /* record the fill value used by the linker. */ +#define ODK_TAGS 6 /* reserve space for desktop tools to write. */ +#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */ +#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */ + +/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */ + +#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */ +#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */ +#define OEX_PAGE0 0x10000 /* page zero must be mapped. */ +#define OEX_SMM 0x20000 /* Force sequential memory mode? */ +#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */ +#define OEX_PRECISEFP OEX_FPDBUG +#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */ + +#define OEX_FPU_INVAL 0x10 +#define OEX_FPU_DIV0 0x08 +#define OEX_FPU_OFLO 0x04 +#define OEX_FPU_UFLO 0x02 +#define OEX_FPU_INEX 0x01 + +/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */ + +#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */ +#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */ +#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */ +#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */ + +#define OPAD_PREFIX 0x1 +#define OPAD_POSTFIX 0x2 +#define OPAD_SYMBOL 0x4 + +/* Entry found in `.options' section. */ + +typedef struct +{ + Elf32_Word hwp_flags1; /* Extra flags. */ + Elf32_Word hwp_flags2; /* Extra flags. */ +} Elf_Options_Hw; + +/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */ + +#define OHWA0_R4KEOP_CHECKED 0x00000001 +#define OHWA1_R4KEOP_CLEAN 0x00000002 + +/* MIPS relocs. */ + +#define R_MIPS_NONE 0 /* No reloc */ +#define R_MIPS_16 1 /* Direct 16 bit */ +#define R_MIPS_32 2 /* Direct 32 bit */ +#define R_MIPS_REL32 3 /* PC relative 32 bit */ +#define R_MIPS_26 4 /* Direct 26 bit shifted */ +#define R_MIPS_HI16 5 /* High 16 bit */ +#define R_MIPS_LO16 6 /* Low 16 bit */ +#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ +#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ +#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ +#define R_MIPS_PC16 10 /* PC relative 16 bit */ +#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ +#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ + +#define R_MIPS_SHIFT5 16 +#define R_MIPS_SHIFT6 17 +#define R_MIPS_64 18 +#define R_MIPS_GOT_DISP 19 +#define R_MIPS_GOT_PAGE 20 +#define R_MIPS_GOT_OFST 21 +#define R_MIPS_GOT_HI16 22 +#define R_MIPS_GOT_LO16 23 +#define R_MIPS_SUB 24 +#define R_MIPS_INSERT_A 25 +#define R_MIPS_INSERT_B 26 +#define R_MIPS_DELETE 27 +#define R_MIPS_HIGHER 28 +#define R_MIPS_HIGHEST 29 +#define R_MIPS_CALL_HI16 30 +#define R_MIPS_CALL_LO16 31 +#define R_MIPS_SCN_DISP 32 +#define R_MIPS_REL16 33 +#define R_MIPS_ADD_IMMEDIATE 34 +#define R_MIPS_PJUMP 35 +#define R_MIPS_RELGOT 36 +#define R_MIPS_JALR 37 +#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */ +#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */ +#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */ +#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */ +#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */ +#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */ +#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */ +#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */ +#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */ +#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */ +#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */ +#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */ +#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */ +#define R_MIPS_GLOB_DAT 51 +#define R_MIPS_COPY 126 +#define R_MIPS_JUMP_SLOT 127 +/* Keep this the last entry. */ +#define R_MIPS_NUM 128 + +/* Legal values for p_type field of Elf32_Phdr. */ + +#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ +#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ +#define PT_MIPS_OPTIONS 0x70000002 + +/* Special program header types. */ + +#define PF_MIPS_LOCAL 0x10000000 + +/* Legal values for d_tag field of Elf32_Dyn. */ + +#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ +#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ +#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ +#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ +#define DT_MIPS_FLAGS 0x70000005 /* Flags */ +#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ +#define DT_MIPS_MSYM 0x70000007 +#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ +#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ +#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ +#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ +#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ +#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ +#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ +#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ +#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ +#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ +#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */ +#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in + DT_MIPS_DELTA_CLASS. */ +#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */ +#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in + DT_MIPS_DELTA_INSTANCE. */ +#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */ +#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in + DT_MIPS_DELTA_RELOC. */ +#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta + relocations refer to. */ +#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in + DT_MIPS_DELTA_SYM. */ +#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the + class declaration. */ +#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in + DT_MIPS_DELTA_CLASSSYM. */ +#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */ +#define DT_MIPS_PIXIE_INIT 0x70000023 +#define DT_MIPS_SYMBOL_LIB 0x70000024 +#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 +#define DT_MIPS_LOCAL_GOTIDX 0x70000026 +#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 +#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 +#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */ +#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */ +#define DT_MIPS_DYNSTR_ALIGN 0x7000002b +#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */ +#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve + function stored in GOT. */ +#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added + by rld on dlopen() calls. */ +#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */ +#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */ +#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */ +/* The address of .got.plt in an executable using the new non-PIC ABI. */ +#define DT_MIPS_PLTGOT 0x70000032 +/* The base of the PLT in an executable using the new non-PIC ABI if that + PLT is writable. For a non-writable PLT, this is omitted or has a zero + value. */ +#define DT_MIPS_RWPLT 0x70000034 +#define DT_MIPS_NUM 0x35 + +/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */ + +#define RHF_NONE 0 /* No flags */ +#define RHF_QUICKSTART (1 << 0) /* Use quickstart */ +#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ +#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ +#define RHF_NO_MOVE (1 << 3) +#define RHF_SGI_ONLY (1 << 4) +#define RHF_GUARANTEE_INIT (1 << 5) +#define RHF_DELTA_C_PLUS_PLUS (1 << 6) +#define RHF_GUARANTEE_START_INIT (1 << 7) +#define RHF_PIXIE (1 << 8) +#define RHF_DEFAULT_DELAY_LOAD (1 << 9) +#define RHF_REQUICKSTART (1 << 10) +#define RHF_REQUICKSTARTED (1 << 11) +#define RHF_CORD (1 << 12) +#define RHF_NO_UNRES_UNDEF (1 << 13) +#define RHF_RLD_ORDER_SAFE (1 << 14) + +/* Entries found in sections of type SHT_MIPS_LIBLIST. */ + +typedef struct +{ + Elf32_Word l_name; /* Name (string table index) */ + Elf32_Word l_time_stamp; /* Timestamp */ + Elf32_Word l_checksum; /* Checksum */ + Elf32_Word l_version; /* Interface version */ + Elf32_Word l_flags; /* Flags */ +} Elf32_Lib; + +typedef struct +{ + Elf64_Word l_name; /* Name (string table index) */ + Elf64_Word l_time_stamp; /* Timestamp */ + Elf64_Word l_checksum; /* Checksum */ + Elf64_Word l_version; /* Interface version */ + Elf64_Word l_flags; /* Flags */ +} Elf64_Lib; + + +/* Legal values for l_flags. */ + +#define LL_NONE 0 +#define LL_EXACT_MATCH (1 << 0) /* Require exact match */ +#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ +#define LL_REQUIRE_MINOR (1 << 2) +#define LL_EXPORTS (1 << 3) +#define LL_DELAY_LOAD (1 << 4) +#define LL_DELTA (1 << 5) + +/* Entries found in sections of type SHT_MIPS_CONFLICT. */ + +typedef Elf32_Addr Elf32_Conflict; -#define EF_ALPHA_32BIT 1 /* All addresses are below 2GB */ /* HPPA specific definitions. */ @@ -704,6 +1757,8 @@ typedef struct { #define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */ #define R_PARISC_FPTR64 64 /* 64 bits function address. */ #define R_PARISC_PLABEL32 65 /* 32 bits function address. */ +#define R_PARISC_PLABEL21L 66 /* Left 21 bits of fdesc address. */ +#define R_PARISC_PLABEL14R 70 /* Right 14 bits of fdesc address. */ #define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */ #define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */ #define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */ @@ -764,6 +1819,26 @@ typedef struct { #define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */ #define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */ #define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_GNU_VTENTRY 232 +#define R_PARISC_GNU_VTINHERIT 233 +#define R_PARISC_TLS_GD21L 234 /* GD 21-bit left. */ +#define R_PARISC_TLS_GD14R 235 /* GD 14-bit right. */ +#define R_PARISC_TLS_GDCALL 236 /* GD call to __t_g_a. */ +#define R_PARISC_TLS_LDM21L 237 /* LD module 21-bit left. */ +#define R_PARISC_TLS_LDM14R 238 /* LD module 14-bit right. */ +#define R_PARISC_TLS_LDMCALL 239 /* LD module call to __t_g_a. */ +#define R_PARISC_TLS_LDO21L 240 /* LD offset 21-bit left. */ +#define R_PARISC_TLS_LDO14R 241 /* LD offset 14-bit right. */ +#define R_PARISC_TLS_DTPMOD32 242 /* DTP module 32-bit. */ +#define R_PARISC_TLS_DTPMOD64 243 /* DTP module 64-bit. */ +#define R_PARISC_TLS_DTPOFF32 244 /* DTP offset 32-bit. */ +#define R_PARISC_TLS_DTPOFF64 245 /* DTP offset 32-bit. */ +#define R_PARISC_TLS_LE21L R_PARISC_TPREL21L +#define R_PARISC_TLS_LE14R R_PARISC_TPREL14R +#define R_PARISC_TLS_IE21L R_PARISC_LTOFF_TP21L +#define R_PARISC_TLS_IE14R R_PARISC_LTOFF_TP14R +#define R_PARISC_TLS_TPREL32 R_PARISC_TPREL32 +#define R_PARISC_TLS_TPREL64 R_PARISC_TPREL64 #define R_PARISC_HIRESERVE 255 /* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */ @@ -799,6 +1874,448 @@ typedef struct { #define PF_HP_LAZYSWAP 0x04000000 #define PF_HP_SBP 0x08000000 + +/* Alpha specific definitions. */ + +/* Legal values for e_flags field of Elf64_Ehdr. */ + +#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ +#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ + +/* Legal values for sh_type field of Elf64_Shdr. */ + +/* These two are primerily concerned with ECOFF debugging info. */ +#define SHT_ALPHA_DEBUG 0x70000001 +#define SHT_ALPHA_REGINFO 0x70000002 + +/* Legal values for sh_flags field of Elf64_Shdr. */ + +#define SHF_ALPHA_GPREL 0x10000000 + +/* Legal values for st_other field of Elf64_Sym. */ +#define STO_ALPHA_NOPV 0x80 /* No PV required. */ +#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */ + +/* Alpha relocs. */ + +#define R_ALPHA_NONE 0 /* No reloc */ +#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ +#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ +#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ +#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ +#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ +#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ +#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ +#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ +#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ +#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ +#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ +#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ +#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ +#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ +#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ +#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ +#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ +#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ +#define R_ALPHA_TLS_GD_HI 28 +#define R_ALPHA_TLSGD 29 +#define R_ALPHA_TLS_LDM 30 +#define R_ALPHA_DTPMOD64 31 +#define R_ALPHA_GOTDTPREL 32 +#define R_ALPHA_DTPREL64 33 +#define R_ALPHA_DTPRELHI 34 +#define R_ALPHA_DTPRELLO 35 +#define R_ALPHA_DTPREL16 36 +#define R_ALPHA_GOTTPREL 37 +#define R_ALPHA_TPREL64 38 +#define R_ALPHA_TPRELHI 39 +#define R_ALPHA_TPRELLO 40 +#define R_ALPHA_TPREL16 41 +/* Keep this the last entry. */ +#define R_ALPHA_NUM 46 + +/* Magic values of the LITUSE relocation addend. */ +#define LITUSE_ALPHA_ADDR 0 +#define LITUSE_ALPHA_BASE 1 +#define LITUSE_ALPHA_BYTOFF 2 +#define LITUSE_ALPHA_JSR 3 +#define LITUSE_ALPHA_TLS_GD 4 +#define LITUSE_ALPHA_TLS_LDM 5 + +/* Legal values for d_tag of Elf64_Dyn. */ +#define DT_ALPHA_PLTRO (DT_LOPROC + 0) +#define DT_ALPHA_NUM 1 + +/* PowerPC specific declarations */ + +/* Values for Elf32/64_Ehdr.e_flags. */ +#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ + +/* Cygnus local bits below */ +#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ +#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib + flag */ + +/* PowerPC relocations defined by the ABIs */ +#define R_PPC_NONE 0 +#define R_PPC_ADDR32 1 /* 32bit absolute address */ +#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ +#define R_PPC_ADDR16 3 /* 16bit absolute address */ +#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ +#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ +#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ +#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ +#define R_PPC_ADDR14_BRTAKEN 8 +#define R_PPC_ADDR14_BRNTAKEN 9 +#define R_PPC_REL24 10 /* PC relative 26 bit */ +#define R_PPC_REL14 11 /* PC relative 16 bit */ +#define R_PPC_REL14_BRTAKEN 12 +#define R_PPC_REL14_BRNTAKEN 13 +#define R_PPC_GOT16 14 +#define R_PPC_GOT16_LO 15 +#define R_PPC_GOT16_HI 16 +#define R_PPC_GOT16_HA 17 +#define R_PPC_PLTREL24 18 +#define R_PPC_COPY 19 +#define R_PPC_GLOB_DAT 20 +#define R_PPC_JMP_SLOT 21 +#define R_PPC_RELATIVE 22 +#define R_PPC_LOCAL24PC 23 +#define R_PPC_UADDR32 24 +#define R_PPC_UADDR16 25 +#define R_PPC_REL32 26 +#define R_PPC_PLT32 27 +#define R_PPC_PLTREL32 28 +#define R_PPC_PLT16_LO 29 +#define R_PPC_PLT16_HI 30 +#define R_PPC_PLT16_HA 31 +#define R_PPC_SDAREL16 32 +#define R_PPC_SECTOFF 33 +#define R_PPC_SECTOFF_LO 34 +#define R_PPC_SECTOFF_HI 35 +#define R_PPC_SECTOFF_HA 36 + +/* PowerPC relocations defined for the TLS access ABI. */ +#define R_PPC_TLS 67 /* none (sym+add)@tls */ +#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */ +#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */ +#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */ +#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@got@tprel */ +#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@got@tprel@l */ +#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@got@dtprel */ +#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@got@dtprel@l */ +#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */ +#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */ + +/* The remaining relocs are from the Embedded ELF ABI, and are not + in the SVR4 ELF ABI. */ +#define R_PPC_EMB_NADDR32 101 +#define R_PPC_EMB_NADDR16 102 +#define R_PPC_EMB_NADDR16_LO 103 +#define R_PPC_EMB_NADDR16_HI 104 +#define R_PPC_EMB_NADDR16_HA 105 +#define R_PPC_EMB_SDAI16 106 +#define R_PPC_EMB_SDA2I16 107 +#define R_PPC_EMB_SDA2REL 108 +#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ +#define R_PPC_EMB_MRKREF 110 +#define R_PPC_EMB_RELSEC16 111 +#define R_PPC_EMB_RELST_LO 112 +#define R_PPC_EMB_RELST_HI 113 +#define R_PPC_EMB_RELST_HA 114 +#define R_PPC_EMB_BIT_FLD 115 +#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ + +/* Diab tool relocations. */ +#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ +#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ +#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ +#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ +#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ +#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ + +/* GNU extension to support local ifunc. */ +#define R_PPC_IRELATIVE 248 + +/* GNU relocs used in PIC code sequences. */ +#define R_PPC_REL16 249 /* half16 (sym+add-.) */ +#define R_PPC_REL16_LO 250 /* half16 (sym+add-.)@l */ +#define R_PPC_REL16_HI 251 /* half16 (sym+add-.)@h */ +#define R_PPC_REL16_HA 252 /* half16 (sym+add-.)@ha */ + +/* This is a phony reloc to handle any old fashioned TOC16 references + that may still be in object files. */ +#define R_PPC_TOC16 255 + +/* PowerPC specific values for the Dyn d_tag field. */ +#define DT_PPC_GOT (DT_LOPROC + 0) +#define DT_PPC_NUM 1 + +/* PowerPC64 relocations defined by the ABIs */ +#define R_PPC64_NONE R_PPC_NONE +#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */ +#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */ +#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */ +#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */ +#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */ +#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */ +#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */ +#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN +#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN +#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */ +#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */ +#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN +#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN +#define R_PPC64_GOT16 R_PPC_GOT16 +#define R_PPC64_GOT16_LO R_PPC_GOT16_LO +#define R_PPC64_GOT16_HI R_PPC_GOT16_HI +#define R_PPC64_GOT16_HA R_PPC_GOT16_HA + +#define R_PPC64_COPY R_PPC_COPY +#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT +#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT +#define R_PPC64_RELATIVE R_PPC_RELATIVE + +#define R_PPC64_UADDR32 R_PPC_UADDR32 +#define R_PPC64_UADDR16 R_PPC_UADDR16 +#define R_PPC64_REL32 R_PPC_REL32 +#define R_PPC64_PLT32 R_PPC_PLT32 +#define R_PPC64_PLTREL32 R_PPC_PLTREL32 +#define R_PPC64_PLT16_LO R_PPC_PLT16_LO +#define R_PPC64_PLT16_HI R_PPC_PLT16_HI +#define R_PPC64_PLT16_HA R_PPC_PLT16_HA + +#define R_PPC64_SECTOFF R_PPC_SECTOFF +#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO +#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI +#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA +#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */ +#define R_PPC64_ADDR64 38 /* doubleword64 S + A */ +#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */ +#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */ +#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */ +#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */ +#define R_PPC64_UADDR64 43 /* doubleword64 S + A */ +#define R_PPC64_REL64 44 /* doubleword64 S + A - P */ +#define R_PPC64_PLT64 45 /* doubleword64 L + A */ +#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */ +#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */ +#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */ +#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */ +#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */ +#define R_PPC64_TOC 51 /* doubleword64 .TOC */ +#define R_PPC64_PLTGOT16 52 /* half16* M + A */ +#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */ +#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */ +#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */ + +#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */ +#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */ +#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */ +#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */ +#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */ +#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */ +#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */ +#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */ +#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */ +#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */ +#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */ + +/* PowerPC64 relocations defined for the TLS access ABI. */ +#define R_PPC64_TLS 67 /* none (sym+add)@tls */ +#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */ +#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */ +#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */ +#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@got@tprel */ +#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ +#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */ +#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ +#define R_PPC64_GOT_DTPREL16_HI 93 /* half16 (sym+add)@got@dtprel@h */ +#define R_PPC64_GOT_DTPREL16_HA 94 /* half16 (sym+add)@got@dtprel@ha */ +#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@tprel@higher */ +#define R_PPC64_TPREL16_HIGHERA 98 /* half16 (sym+add)@tprel@highera */ +#define R_PPC64_TPREL16_HIGHEST 99 /* half16 (sym+add)@tprel@highest */ +#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@tprel@highesta */ +#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HIGHER 103 /* half16 (sym+add)@dtprel@higher */ +#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */ +#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */ +#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */ + +/* GNU extension to support local ifunc. */ +#define R_PPC64_JMP_IREL 247 +#define R_PPC64_IRELATIVE 248 +#define R_PPC64_REL16 249 /* half16 (sym+add-.) */ +#define R_PPC64_REL16_LO 250 /* half16 (sym+add-.)@l */ +#define R_PPC64_REL16_HI 251 /* half16 (sym+add-.)@h */ +#define R_PPC64_REL16_HA 252 /* half16 (sym+add-.)@ha */ + +/* PowerPC64 specific values for the Dyn d_tag field. */ +#define DT_PPC64_GLINK (DT_LOPROC + 0) +#define DT_PPC64_OPD (DT_LOPROC + 1) +#define DT_PPC64_OPDSZ (DT_LOPROC + 2) +#define DT_PPC64_NUM 3 + + +/* ARM specific declarations */ + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_ARM_RELEXEC 0x01 +#define EF_ARM_HASENTRY 0x02 +#define EF_ARM_INTERWORK 0x04 +#define EF_ARM_APCS_26 0x08 +#define EF_ARM_APCS_FLOAT 0x10 +#define EF_ARM_PIC 0x20 +#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */ +#define EF_ARM_NEW_ABI 0x80 +#define EF_ARM_OLD_ABI 0x100 +#define EF_ARM_SOFT_FLOAT 0x200 +#define EF_ARM_VFP_FLOAT 0x400 +#define EF_ARM_MAVERICK_FLOAT 0x800 + + +/* Other constants defined in the ARM ELF spec. version B-01. */ +/* NB. These conflict with values defined above. */ +#define EF_ARM_SYMSARESORTED 0x04 +#define EF_ARM_DYNSYMSUSESEGIDX 0x08 +#define EF_ARM_MAPSYMSFIRST 0x10 +#define EF_ARM_EABIMASK 0XFF000000 + +/* Constants defined in AAELF. */ +#define EF_ARM_BE8 0x00800000 +#define EF_ARM_LE8 0x00400000 + +#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) +#define EF_ARM_EABI_UNKNOWN 0x00000000 +#define EF_ARM_EABI_VER1 0x01000000 +#define EF_ARM_EABI_VER2 0x02000000 +#define EF_ARM_EABI_VER3 0x03000000 +#define EF_ARM_EABI_VER4 0x04000000 +#define EF_ARM_EABI_VER5 0x05000000 + +/* Additional symbol types for Thumb. */ +#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */ +#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */ + +/* ARM-specific values for sh_flags */ +#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ +#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined + in the input to a link step. */ + +/* ARM-specific program header flags */ +#define PF_ARM_SB 0x10000000 /* Segment contains the location + addressed by the static base. */ +#define PF_ARM_PI 0x20000000 /* Position-independent segment. */ +#define PF_ARM_ABS 0x40000000 /* Absolute segment. */ + +/* Processor specific values for the Phdr p_type field. */ +#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */ + +/* Processor specific values for the Shdr sh_type field. */ +#define SHT_ARM_EXIDX (SHT_LOPROC + 1) /* ARM unwind section. */ +#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) /* Preemption details. */ +#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) /* ARM attributes section. */ + + +/* ARM relocs. */ + +#define R_ARM_NONE 0 /* No reloc */ +#define R_ARM_PC24 1 /* PC relative 26 bit branch */ +#define R_ARM_ABS32 2 /* Direct 32 bit */ +#define R_ARM_REL32 3 /* PC relative 32 bit */ +#define R_ARM_PC13 4 +#define R_ARM_ABS16 5 /* Direct 16 bit */ +#define R_ARM_ABS12 6 /* Direct 12 bit */ +#define R_ARM_THM_ABS5 7 +#define R_ARM_ABS8 8 /* Direct 8 bit */ +#define R_ARM_SBREL32 9 +#define R_ARM_THM_PC22 10 +#define R_ARM_THM_PC8 11 +#define R_ARM_AMP_VCALL9 12 +#define R_ARM_SWI24 13 +#define R_ARM_THM_SWI8 14 +#define R_ARM_XPC25 15 +#define R_ARM_THM_XPC22 16 +#define R_ARM_TLS_DTPMOD32 17 /* ID of module containing symbol */ +#define R_ARM_TLS_DTPOFF32 18 /* Offset in TLS block */ +#define R_ARM_TLS_TPOFF32 19 /* Offset in static TLS block */ +#define R_ARM_COPY 20 /* Copy symbol at runtime */ +#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ +#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ +#define R_ARM_RELATIVE 23 /* Adjust by program base */ +#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ +#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ +#define R_ARM_GOT32 26 /* 32 bit GOT entry */ +#define R_ARM_PLT32 27 /* 32 bit PLT address */ +#define R_ARM_ALU_PCREL_7_0 32 +#define R_ARM_ALU_PCREL_15_8 33 +#define R_ARM_ALU_PCREL_23_15 34 +#define R_ARM_LDR_SBREL_11_0 35 +#define R_ARM_ALU_SBREL_19_12 36 +#define R_ARM_ALU_SBREL_27_20 37 +#define R_ARM_GNU_VTENTRY 100 +#define R_ARM_GNU_VTINHERIT 101 +#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ +#define R_ARM_THM_PC9 103 /* thumb conditional branch */ +#define R_ARM_TLS_GD32 104 /* PC-rel 32 bit for global dynamic + thread local data */ +#define R_ARM_TLS_LDM32 105 /* PC-rel 32 bit for local dynamic + thread local data */ +#define R_ARM_TLS_LDO32 106 /* 32 bit offset relative to TLS + block */ +#define R_ARM_TLS_IE32 107 /* PC-rel 32 bit for GOT entry of + static TLS block offset */ +#define R_ARM_TLS_LE32 108 /* 32 bit offset relative to static + TLS block */ +#define R_ARM_RXPC25 249 +#define R_ARM_RSBREL32 250 +#define R_ARM_THM_RPC22 251 +#define R_ARM_RREL32 252 +#define R_ARM_RABS22 253 +#define R_ARM_RPC24 254 +#define R_ARM_RBASE 255 +/* Keep this the last entry. */ +#define R_ARM_NUM 256 + /* IA-64 specific declarations. */ /* Processor specific flags for the Ehdr e_flags field. */ @@ -809,6 +2326,9 @@ typedef struct { /* Processor specific values for the Phdr p_type field. */ #define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */ #define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */ +#define PT_IA_64_HP_OPT_ANOT (PT_LOOS + 0x12) +#define PT_IA_64_HP_HSL_ANOT (PT_LOOS + 0x13) +#define PT_IA_64_HP_STACK (PT_LOOS + 0x14) /* Processor specific flags for the Phdr p_flags field. */ #define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */ @@ -908,244 +2428,288 @@ typedef struct { #define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */ #define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ -typedef struct elf32_rel { - Elf32_Addr r_offset; - Elf32_Word r_info; -} Elf32_Rel; - -typedef struct elf64_rel { - Elf64_Addr r_offset; /* Location at which to apply the action */ - Elf64_Xword r_info; /* index and type of relocation */ -} Elf64_Rel; - -typedef struct elf32_rela{ - Elf32_Addr r_offset; - Elf32_Word r_info; - Elf32_Sword r_addend; -} Elf32_Rela; - -typedef struct elf64_rela { - Elf64_Addr r_offset; /* Location at which to apply the action */ - Elf64_Xword r_info; /* index and type of relocation */ - Elf64_Sxword r_addend; /* Constant addend used to compute value */ -} Elf64_Rela; - -typedef struct elf32_sym{ - Elf32_Word st_name; - Elf32_Addr st_value; - Elf32_Word st_size; - unsigned char st_info; - unsigned char st_other; - Elf32_Half st_shndx; -} Elf32_Sym; - -typedef struct elf64_sym { - Elf64_Word st_name; /* Symbol name, index in string tbl */ - unsigned char st_info; /* Type and binding attributes */ - unsigned char st_other; /* No defined meaning, 0 */ - Elf64_Half st_shndx; /* Associated section index */ - Elf64_Addr st_value; /* Value of the symbol */ - Elf64_Xword st_size; /* Associated symbol size */ -} Elf64_Sym; - - -#define EI_NIDENT 16 - -typedef struct elf32_hdr{ - unsigned char e_ident[EI_NIDENT]; - Elf32_Half e_type; - Elf32_Half e_machine; - Elf32_Word e_version; - Elf32_Addr e_entry; /* Entry point */ - Elf32_Off e_phoff; - Elf32_Off e_shoff; - Elf32_Word e_flags; - Elf32_Half e_ehsize; - Elf32_Half e_phentsize; - Elf32_Half e_phnum; - Elf32_Half e_shentsize; - Elf32_Half e_shnum; - Elf32_Half e_shstrndx; -} Elf32_Ehdr; - -typedef struct elf64_hdr { - unsigned char e_ident[16]; /* ELF "magic number" */ - Elf64_Half e_type; - Elf64_Half e_machine; - Elf64_Word e_version; - Elf64_Addr e_entry; /* Entry point virtual address */ - Elf64_Off e_phoff; /* Program header table file offset */ - Elf64_Off e_shoff; /* Section header table file offset */ - Elf64_Word e_flags; - Elf64_Half e_ehsize; - Elf64_Half e_phentsize; - Elf64_Half e_phnum; - Elf64_Half e_shentsize; - Elf64_Half e_shnum; - Elf64_Half e_shstrndx; -} Elf64_Ehdr; - -/* These constants define the permissions on sections in the program - header, p_flags. */ -#define PF_R 0x4 -#define PF_W 0x2 -#define PF_X 0x1 - -typedef struct elf32_phdr{ - Elf32_Word p_type; - Elf32_Off p_offset; - Elf32_Addr p_vaddr; - Elf32_Addr p_paddr; - Elf32_Word p_filesz; - Elf32_Word p_memsz; - Elf32_Word p_flags; - Elf32_Word p_align; -} Elf32_Phdr; - -typedef struct elf64_phdr { - Elf64_Word p_type; - Elf64_Word p_flags; - Elf64_Off p_offset; /* Segment file offset */ - Elf64_Addr p_vaddr; /* Segment virtual address */ - Elf64_Addr p_paddr; /* Segment physical address */ - Elf64_Xword p_filesz; /* Segment size in file */ - Elf64_Xword p_memsz; /* Segment size in memory */ - Elf64_Xword p_align; /* Segment alignment, file & memory */ -} Elf64_Phdr; - -/* sh_type */ -#define SHT_NULL 0 -#define SHT_PROGBITS 1 -#define SHT_SYMTAB 2 -#define SHT_STRTAB 3 -#define SHT_RELA 4 -#define SHT_HASH 5 -#define SHT_DYNAMIC 6 -#define SHT_NOTE 7 -#define SHT_NOBITS 8 -#define SHT_REL 9 -#define SHT_SHLIB 10 -#define SHT_DYNSYM 11 -#define SHT_NUM 12 -#define SHT_LOPROC 0x70000000 -#define SHT_HIPROC 0x7fffffff -#define SHT_LOUSER 0x80000000 -#define SHT_HIUSER 0xffffffff -#define SHT_MIPS_LIST 0x70000000 -#define SHT_MIPS_CONFLICT 0x70000002 -#define SHT_MIPS_GPTAB 0x70000003 -#define SHT_MIPS_UCODE 0x70000004 - -/* sh_flags */ -#define SHF_WRITE 0x1 -#define SHF_ALLOC 0x2 -#define SHF_EXECINSTR 0x4 -#define SHF_MASKPROC 0xf0000000 -#define SHF_MIPS_GPREL 0x10000000 - -/* special section indexes */ -#define SHN_UNDEF 0 -#define SHN_LORESERVE 0xff00 -#define SHN_LOPROC 0xff00 -#define SHN_HIPROC 0xff1f -#define SHN_ABS 0xfff1 -#define SHN_COMMON 0xfff2 -#define SHN_HIRESERVE 0xffff -#define SHN_MIPS_ACCOMON 0xff00 - -typedef struct elf32_shdr { - Elf32_Word sh_name; - Elf32_Word sh_type; - Elf32_Word sh_flags; - Elf32_Addr sh_addr; - Elf32_Off sh_offset; - Elf32_Word sh_size; - Elf32_Word sh_link; - Elf32_Word sh_info; - Elf32_Word sh_addralign; - Elf32_Word sh_entsize; -} Elf32_Shdr; - -typedef struct elf64_shdr { - Elf64_Word sh_name; /* Section name, index in string tbl */ - Elf64_Word sh_type; /* Type of section */ - Elf64_Xword sh_flags; /* Miscellaneous section attributes */ - Elf64_Addr sh_addr; /* Section virtual addr at execution */ - Elf64_Off sh_offset; /* Section file offset */ - Elf64_Xword sh_size; /* Size of section in bytes */ - Elf64_Word sh_link; /* Index of another section */ - Elf64_Word sh_info; /* Additional section information */ - Elf64_Xword sh_addralign; /* Section alignment */ - Elf64_Xword sh_entsize; /* Entry size if section holds table */ -} Elf64_Shdr; - -#define EI_MAG0 0 /* e_ident[] indexes */ -#define EI_MAG1 1 -#define EI_MAG2 2 -#define EI_MAG3 3 -#define EI_CLASS 4 -#define EI_DATA 5 -#define EI_VERSION 6 -#define EI_OSABI 7 -#define EI_PAD 8 - -#define ELFOSABI_NONE 0 /* UNIX System V ABI */ -#define ELFOSABI_SYSV 0 /* Alias. */ -#define ELFOSABI_HPUX 1 /* HP-UX */ -#define ELFOSABI_NETBSD 2 /* NetBSD. */ -#define ELFOSABI_LINUX 3 /* Linux. */ -#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ -#define ELFOSABI_AIX 7 /* IBM AIX. */ -#define ELFOSABI_IRIX 8 /* SGI Irix. */ -#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ -#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ -#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ -#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ -#define ELFOSABI_ARM 97 /* ARM */ -#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ - -#define ELFMAG0 0x7f /* EI_MAG */ -#define ELFMAG1 'E' -#define ELFMAG2 'L' -#define ELFMAG3 'F' -#define ELFMAG "\177ELF" -#define SELFMAG 4 - -#define ELFCLASSNONE 0 /* EI_CLASS */ -#define ELFCLASS32 1 -#define ELFCLASS64 2 -#define ELFCLASSNUM 3 - -#define ELFDATANONE 0 /* e_ident[EI_DATA] */ -#define ELFDATA2LSB 1 -#define ELFDATA2MSB 2 - -#define EV_NONE 0 /* e_version, EI_VERSION */ -#define EV_CURRENT 1 -#define EV_NUM 2 - -/* Notes used in ET_CORE */ -#define NT_PRSTATUS 1 -#define NT_PRFPREG 2 -#define NT_PRPSINFO 3 -#define NT_TASKSTRUCT 4 -#define NT_AUXV 6 -#define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */ - +/* SH specific declarations */ + +/* SH relocs. */ +#define R_SH_NONE 0 +#define R_SH_DIR32 1 +#define R_SH_REL32 2 +#define R_SH_DIR8WPN 3 +#define R_SH_IND12W 4 +#define R_SH_DIR8WPL 5 +#define R_SH_DIR8WPZ 6 +#define R_SH_DIR8BP 7 +#define R_SH_DIR8W 8 +#define R_SH_DIR8L 9 +#define R_SH_SWITCH16 25 +#define R_SH_SWITCH32 26 +#define R_SH_USES 27 +#define R_SH_COUNT 28 +#define R_SH_ALIGN 29 +#define R_SH_CODE 30 +#define R_SH_DATA 31 +#define R_SH_LABEL 32 +#define R_SH_SWITCH8 33 +#define R_SH_GNU_VTINHERIT 34 +#define R_SH_GNU_VTENTRY 35 +#define R_SH_TLS_GD_32 144 +#define R_SH_TLS_LD_32 145 +#define R_SH_TLS_LDO_32 146 +#define R_SH_TLS_IE_32 147 +#define R_SH_TLS_LE_32 148 +#define R_SH_TLS_DTPMOD32 149 +#define R_SH_TLS_DTPOFF32 150 +#define R_SH_TLS_TPOFF32 151 +#define R_SH_GOT32 160 +#define R_SH_PLT32 161 +#define R_SH_COPY 162 +#define R_SH_GLOB_DAT 163 +#define R_SH_JMP_SLOT 164 +#define R_SH_RELATIVE 165 +#define R_SH_GOTOFF 166 +#define R_SH_GOTPC 167 +/* Keep this the last entry. */ +#define R_SH_NUM 256 -/* Note header in a PT_NOTE section */ -typedef struct elf32_note { - Elf32_Word n_namesz; /* Name size */ - Elf32_Word n_descsz; /* Content size */ - Elf32_Word n_type; /* Content type */ -} Elf32_Nhdr; +/* Additional s390 relocs */ -/* Note header in a PT_NOTE section */ -typedef struct elf64_note { - Elf64_Word n_namesz; /* Name size */ - Elf64_Word n_descsz; /* Content size */ - Elf64_Word n_type; /* Content type */ -} Elf64_Nhdr; +#define R_390_NONE 0 /* No reloc. */ +#define R_390_8 1 /* Direct 8 bit. */ +#define R_390_12 2 /* Direct 12 bit. */ +#define R_390_16 3 /* Direct 16 bit. */ +#define R_390_32 4 /* Direct 32 bit. */ +#define R_390_PC32 5 /* PC relative 32 bit. */ +#define R_390_GOT12 6 /* 12 bit GOT offset. */ +#define R_390_GOT32 7 /* 32 bit GOT offset. */ +#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ +#define R_390_COPY 9 /* Copy symbol at runtime. */ +#define R_390_GLOB_DAT 10 /* Create GOT entry. */ +#define R_390_JMP_SLOT 11 /* Create PLT entry. */ +#define R_390_RELATIVE 12 /* Adjust by program base. */ +#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ +#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */ +#define R_390_GOT16 15 /* 16 bit GOT offset. */ +#define R_390_PC16 16 /* PC relative 16 bit. */ +#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ +#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ +#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ +#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ +#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ +#define R_390_64 22 /* Direct 64 bit. */ +#define R_390_PC64 23 /* PC relative 64 bit. */ +#define R_390_GOT64 24 /* 64 bit GOT offset. */ +#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ +#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ +#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ +#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ +#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ +#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ +#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ +#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ +#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ +#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ +#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ +#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ +#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ +#define R_390_TLS_GDCALL 38 /* Tag for function call in general + dynamic TLS code. */ +#define R_390_TLS_LDCALL 39 /* Tag for function call in local + dynamic TLS code. */ +#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic + thread local data. */ +#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic + thread local data. */ +#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS + block. */ +#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS + block. */ +#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ +#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ +#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS + block. */ +#define R_390_20 57 /* Direct 20 bit. */ +#define R_390_GOT20 58 /* 20 bit GOT offset. */ +#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ +#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS + block offset. */ +/* Keep this the last entry. */ +#define R_390_NUM 61 + + +/* CRIS relocations. */ +#define R_CRIS_NONE 0 +#define R_CRIS_8 1 +#define R_CRIS_16 2 +#define R_CRIS_32 3 +#define R_CRIS_8_PCREL 4 +#define R_CRIS_16_PCREL 5 +#define R_CRIS_32_PCREL 6 +#define R_CRIS_GNU_VTINHERIT 7 +#define R_CRIS_GNU_VTENTRY 8 +#define R_CRIS_COPY 9 +#define R_CRIS_GLOB_DAT 10 +#define R_CRIS_JUMP_SLOT 11 +#define R_CRIS_RELATIVE 12 +#define R_CRIS_16_GOT 13 +#define R_CRIS_32_GOT 14 +#define R_CRIS_16_GOTPLT 15 +#define R_CRIS_32_GOTPLT 16 +#define R_CRIS_32_GOTREL 17 +#define R_CRIS_32_PLT_GOTREL 18 +#define R_CRIS_32_PLT_PCREL 19 + +#define R_CRIS_NUM 20 + + +/* AMD x86-64 relocations. */ +#define R_X86_64_NONE 0 /* No reloc */ +#define R_X86_64_64 1 /* Direct 64 bit */ +#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ +#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ +#define R_X86_64_PLT32 4 /* 32 bit PLT address */ +#define R_X86_64_COPY 5 /* Copy symbol at runtime */ +#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ +#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ +#define R_X86_64_RELATIVE 8 /* Adjust by program base */ +#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative + offset to GOT */ +#define R_X86_64_32 10 /* Direct 32 bit zero extended */ +#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ +#define R_X86_64_16 12 /* Direct 16 bit zero extended */ +#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ +#define R_X86_64_8 14 /* Direct 8 bit sign extended */ +#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ +#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ +#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ +#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ +#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset + to two GOT entries for GD symbol */ +#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset + to two GOT entries for LD symbol */ +#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ +#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset + to GOT entry for IE symbol */ +#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ +#define R_X86_64_PC64 24 /* PC relative 64 bit */ +#define R_X86_64_GOTOFF64 25 /* 64 bit offset to GOT */ +#define R_X86_64_GOTPC32 26 /* 32 bit signed pc relative + offset to GOT */ +/* 27 .. 33 */ +#define R_X86_64_GOTPC32_TLSDESC 34 /* GOT offset for TLS descriptor. */ +#define R_X86_64_TLSDESC_CALL 35 /* Marker for call through TLS + descriptor. */ +#define R_X86_64_TLSDESC 36 /* TLS descriptor. */ +#define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */ + +#define R_X86_64_NUM 38 + + +/* AM33 relocations. */ +#define R_MN10300_NONE 0 /* No reloc. */ +#define R_MN10300_32 1 /* Direct 32 bit. */ +#define R_MN10300_16 2 /* Direct 16 bit. */ +#define R_MN10300_8 3 /* Direct 8 bit. */ +#define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */ +#define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */ +#define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */ +#define R_MN10300_GNU_VTINHERIT 7 /* Ancient C++ vtable garbage... */ +#define R_MN10300_GNU_VTENTRY 8 /* ... collection annotation. */ +#define R_MN10300_24 9 /* Direct 24 bit. */ +#define R_MN10300_GOTPC32 10 /* 32-bit PCrel offset to GOT. */ +#define R_MN10300_GOTPC16 11 /* 16-bit PCrel offset to GOT. */ +#define R_MN10300_GOTOFF32 12 /* 32-bit offset from GOT. */ +#define R_MN10300_GOTOFF24 13 /* 24-bit offset from GOT. */ +#define R_MN10300_GOTOFF16 14 /* 16-bit offset from GOT. */ +#define R_MN10300_PLT32 15 /* 32-bit PCrel to PLT entry. */ +#define R_MN10300_PLT16 16 /* 16-bit PCrel to PLT entry. */ +#define R_MN10300_GOT32 17 /* 32-bit offset to GOT entry. */ +#define R_MN10300_GOT24 18 /* 24-bit offset to GOT entry. */ +#define R_MN10300_GOT16 19 /* 16-bit offset to GOT entry. */ +#define R_MN10300_COPY 20 /* Copy symbol at runtime. */ +#define R_MN10300_GLOB_DAT 21 /* Create GOT entry. */ +#define R_MN10300_JMP_SLOT 22 /* Create PLT entry. */ +#define R_MN10300_RELATIVE 23 /* Adjust by program base. */ + +#define R_MN10300_NUM 24 + + +/* M32R relocs. */ +#define R_M32R_NONE 0 /* No reloc. */ +#define R_M32R_16 1 /* Direct 16 bit. */ +#define R_M32R_32 2 /* Direct 32 bit. */ +#define R_M32R_24 3 /* Direct 24 bit. */ +#define R_M32R_10_PCREL 4 /* PC relative 10 bit shifted. */ +#define R_M32R_18_PCREL 5 /* PC relative 18 bit shifted. */ +#define R_M32R_26_PCREL 6 /* PC relative 26 bit shifted. */ +#define R_M32R_HI16_ULO 7 /* High 16 bit with unsigned low. */ +#define R_M32R_HI16_SLO 8 /* High 16 bit with signed low. */ +#define R_M32R_LO16 9 /* Low 16 bit. */ +#define R_M32R_SDA16 10 /* 16 bit offset in SDA. */ +#define R_M32R_GNU_VTINHERIT 11 +#define R_M32R_GNU_VTENTRY 12 +/* M32R relocs use SHT_RELA. */ +#define R_M32R_16_RELA 33 /* Direct 16 bit. */ +#define R_M32R_32_RELA 34 /* Direct 32 bit. */ +#define R_M32R_24_RELA 35 /* Direct 24 bit. */ +#define R_M32R_10_PCREL_RELA 36 /* PC relative 10 bit shifted. */ +#define R_M32R_18_PCREL_RELA 37 /* PC relative 18 bit shifted. */ +#define R_M32R_26_PCREL_RELA 38 /* PC relative 26 bit shifted. */ +#define R_M32R_HI16_ULO_RELA 39 /* High 16 bit with unsigned low */ +#define R_M32R_HI16_SLO_RELA 40 /* High 16 bit with signed low */ +#define R_M32R_LO16_RELA 41 /* Low 16 bit */ +#define R_M32R_SDA16_RELA 42 /* 16 bit offset in SDA */ +#define R_M32R_RELA_GNU_VTINHERIT 43 +#define R_M32R_RELA_GNU_VTENTRY 44 +#define R_M32R_REL32 45 /* PC relative 32 bit. */ + +#define R_M32R_GOT24 48 /* 24 bit GOT entry */ +#define R_M32R_26_PLTREL 49 /* 26 bit PC relative to PLT shifted */ +#define R_M32R_COPY 50 /* Copy symbol at runtime */ +#define R_M32R_GLOB_DAT 51 /* Create GOT entry */ +#define R_M32R_JMP_SLOT 52 /* Create PLT entry */ +#define R_M32R_RELATIVE 53 /* Adjust by program base */ +#define R_M32R_GOTOFF 54 /* 24 bit offset to GOT */ +#define R_M32R_GOTPC24 55 /* 24 bit PC relative offset to GOT */ +#define R_M32R_GOT16_HI_ULO 56 /* High 16 bit GOT entry with unsigned + low */ +#define R_M32R_GOT16_HI_SLO 57 /* High 16 bit GOT entry with signed + low */ +#define R_M32R_GOT16_LO 58 /* Low 16 bit GOT entry */ +#define R_M32R_GOTPC_HI_ULO 59 /* High 16 bit PC relative offset to + GOT with unsigned low */ +#define R_M32R_GOTPC_HI_SLO 60 /* High 16 bit PC relative offset to + GOT with signed low */ +#define R_M32R_GOTPC_LO 61 /* Low 16 bit PC relative offset to + GOT */ +#define R_M32R_GOTOFF_HI_ULO 62 /* High 16 bit offset to GOT + with unsigned low */ +#define R_M32R_GOTOFF_HI_SLO 63 /* High 16 bit offset to GOT + with signed low */ +#define R_M32R_GOTOFF_LO 64 /* Low 16 bit offset to GOT */ +#define R_M32R_NUM 256 /* Keep this the last entry. */ + + +__END_DECLS #ifdef ELF_CLASS #if ELF_CLASS == ELFCLASS32 @@ -1157,12 +2721,6 @@ typedef struct elf64_note { #define elf_sym elf32_sym #define elf_addr_t Elf32_Off -#ifdef ELF_USES_RELOCA -# define ELF_RELOC Elf32_Rela -#else -# define ELF_RELOC Elf32_Rel -#endif - #else #define elfhdr elf64_hdr @@ -1172,25 +2730,7 @@ typedef struct elf64_note { #define elf_sym elf64_sym #define elf_addr_t Elf64_Off -#ifdef ELF_USES_RELOCA -# define ELF_RELOC Elf64_Rela -#else -# define ELF_RELOC Elf64_Rel -#endif - #endif /* ELF_CLASS */ -#ifndef ElfW -# if ELF_CLASS == ELFCLASS32 -# define ElfW(x) Elf32_ ## x -# define ELFW(x) ELF32_ ## x -# else -# define ElfW(x) Elf64_ ## x -# define ELFW(x) ELF64_ ## x -# endif -#endif - #endif /* ELF_CLASS */ - - -#endif /* _QEMU_ELF_H */ +#endif /* elf.h */ ^ permalink raw reply related [flat|nested] 5+ messages in thread
* [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter. [not found] <20100622040018.044362998@mars.in.ibm.com> 2010-06-22 4:01 ` [Qemu-devel] [patch 1/3] QEMU-C-F: Bring up the elf.h header up-to-date with latest glibc elf.h header Mahesh Salgaonkar @ 2010-06-22 4:01 ` Mahesh Salgaonkar 2010-06-22 13:02 ` Anthony Liguori 2010-06-22 4:02 ` [Qemu-devel] [patch 3/3] QEMU-C-F: qemu-core-filter documentation Mahesh Salgaonkar 2 siblings, 1 reply; 5+ messages in thread From: Mahesh Salgaonkar @ 2010-06-22 4:01 UTC (permalink / raw) To: qemu-devel Cc: Ananth N Mavinakayanahalli, Mahesh Salgaonkar, Maneesh Soni, Michael Mueller, Reinhard Buendgen [-- Attachment #1: qemu-core-filter.patch --] [-- Type: text/plain, Size: 65476 bytes --] Qemu userspace tool to filter out guest OS memory from qemu core file. Use '--enable-core-filter' option while running ./configure script to build qemu-core-filter tool. This is a post-processing tool works offline on qemu coredumps. This tool helps to reuce the size of qemu core file (generated by qemu crash) by removing guest OS memory from original core file. Currently it is only supported for Linux on x86 and x86_64. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> --- Makefile | 6 configure | 72 ++ create_config | 3 qemu-core-filter.c | 1976 ++++++++++++++++++++++++++++++++++++++++++++++++++++ qemu-core-filter.h | 216 ++++++ 5 files changed, 2272 insertions(+), 1 deletions(-) create mode 100644 qemu-core-filter.c create mode 100644 qemu-core-filter.h diff --git a/Makefile b/Makefile index 221fbd8..1174628 100644 --- a/Makefile +++ b/Makefile @@ -135,7 +135,8 @@ iov.o: iov.c iov.h ###################################################################### qemu-img.o: qemu-img-cmds.h -qemu-img.o qemu-tool.o qemu-nbd.o qemu-io.o: $(GENERATED_HEADERS) +qemu-core-filter.o: qemu-core-filter.h +qemu-img.o qemu-tool.o qemu-nbd.o qemu-io.o qemu-core-filter.o: $(GENERATED_HEADERS) qemu-img$(EXESUF): qemu-img.o qemu-tool.o qemu-error.o $(block-obj-y) $(qobject-obj-y) @@ -143,6 +144,8 @@ qemu-nbd$(EXESUF): qemu-nbd.o qemu-tool.o qemu-error.o $(block-obj-y) $(qobject- qemu-io$(EXESUF): qemu-io.o cmd.o qemu-tool.o qemu-error.o $(block-obj-y) $(qobject-obj-y) +qemu-core-filter$(EXESUF): qemu-core-filter.o + qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx $(call quiet-command,sh $(SRC_PATH)/hxtool -h < $< > $@," GEN $@") @@ -324,6 +327,7 @@ tarbin: $(patsubst %,$(bindir)/%, $(USER_PROGS)) \ $(bindir)/qemu-img \ $(bindir)/qemu-nbd \ + $(bindir)/qemu-core-filter \ $(datadir)/bios.bin \ $(datadir)/vgabios.bin \ $(datadir)/vgabios-cirrus.bin \ diff --git a/configure b/configure index c0d8aa5..7aa8189 100755 --- a/configure +++ b/configure @@ -271,6 +271,7 @@ vnc_sasl="" xen="" linux_aio="" vhost_net="" +core_filter_tool="no" gprof="no" debug_tcg="no" @@ -687,6 +688,10 @@ for opt do ;; --enable-vhost-net) vhost_net="yes" ;; + --disable-core-filter) core_filter_tool="no" + ;; + --enable-core-filter) core_filter_tool="yes" + ;; --*dir) ;; *) echo "ERROR: unknown option $opt"; show_help="yes" @@ -865,6 +870,8 @@ echo " --enable-docs enable documentation build" echo " --disable-docs disable documentation build" echo " --disable-vhost-net disable vhost-net acceleration support" echo " --enable-vhost-net enable vhost-net acceleration support" +echo " --disable-core-filter do not build qemu-core-filter tool (default)" +echo " --enable-core-filter build qemu-core-filter tool" echo "" echo "NOTE: The object files are built at the place where configure is launched" exit 1 @@ -1021,6 +1028,18 @@ case "$cpu" in ;; esac +######################################### +# qemu-core-filter tool for x86 and x86_64 +if test "$core_filter_tool" != "no"; then + if test \( "$cpu" = "i386" -o "$cpu" = "x86_64" \) -a \ + "$targetos" == "Linux" ; then \ + core_filter_tool=yes + else + echo -n "Currently qemu-core-filter is only supported for Linux" + echo " on x86 and x86_64." + exit 1; + fi +fi ########################################## # NPTL probe @@ -1048,6 +1067,21 @@ EOF fi ########################################## +# elfutils/version.h header file check + +if test "$core_filter_tool" != "no" ; then + elf_version_h=no + cat > $TMPC <<EOF +#include <elfutils/version.h> +int main(void) { return 0; } +EOF + + if compile_prog "" ""; then + elf_version_h=yes + fi +fi + +########################################## # zlib check cat > $TMPC << EOF @@ -1086,6 +1120,34 @@ EOF fi ########################################## +# elfutils library probe + +if test "$core_filter_tool" != "no" ; then + elf_libs="-ldw -lelf" + cat > $TMPC <<EOF +#include <elf.h> +#include <dwarf.h> +#include <elfutils/libdw.h> +int main(void) { + dwarf_begin_elf(NULL, 0, NULL); + dwarf_attr(NULL, 0, NULL); + elf_version(EV_CURRENT); + return 0; +} +EOF + if compile_prog "" "$elf_libs" ; then + core_filter_tool=yes + libs_tools="$libs_tools $elf_libs" + else + if test "$core_filter_tool" = "yes" ; then + echo "ERROR: elfutils libraries (libdw and libelf) are missing." + exit 1; + fi + core_filter_tool=no + fi +fi + +########################################## # pkgconfig probe pkgconfig="${cross_prefix}pkg-config" @@ -2014,6 +2076,10 @@ if test "$softmmu" = yes ; then fi fi +if test "$core_filter_tool" = "yes"; then \ + tools="qemu-core-filter\$(EXESUF) $tools" +fi + # Mac OS X ships with a broken assembler roms= if test \( "$cpu" = "i386" -o "$cpu" = "x86_64" \) -a \ @@ -2086,6 +2152,7 @@ echo "preadv support $preadv" echo "fdatasync $fdatasync" echo "uuid support $uuid" echo "vhost-net support $vhost_net" +echo "build core-filter $core_filter_tool" if test $sdl_too_old = "yes"; then echo "-> Your SDL version is too old - please upgrade to have SDL support" @@ -2312,6 +2379,11 @@ echo "CONFIG_UNAME_RELEASE=\"$uname_release\"" >> $config_host_mak if test "$zero_malloc" = "yes" ; then echo "CONFIG_ZERO_MALLOC=y" >> $config_host_mak fi +if test "$core_filter_tool" = "yes"; then + if test "$elf_version_h" = "yes" ; then + echo "HAVE_ELFUTILS_VERSION_H=y" >> $config_host_mak + fi +fi # USB host support case "$usb" in diff --git a/create_config b/create_config index 0098e68..59227f1 100755 --- a/create_config +++ b/create_config @@ -37,6 +37,9 @@ case $line in done echo " NULL" ;; + HAVE_ELFUTILS_VERSION_H=y) + echo "#define HAVE_ELFUTILS_VERSION_H 1" + ;; CONFIG_*=y) # configuration name=${line%=*} echo "#define $name 1" diff --git a/qemu-core-filter.c b/qemu-core-filter.c new file mode 100644 index 0000000..ab90c61 --- /dev/null +++ b/qemu-core-filter.c @@ -0,0 +1,1976 @@ +/* + * qemu-core-filter.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2010 IBM Corporation + * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> + * + * Adopted from: http://sourceforge.net/projects/makedumpfile + * Some of the code source are adopted from makdumpfile project + * which is GPL License sources. + */ +#include "qemu-core-filter.h" + +struct CoreDumpInfo *in_core = NULL; +struct CoreDumpInfo *out_core = NULL; + +struct GuestOSMemMap *guest_os_memmap = NULL; +struct DwarfInfo dwarf_info; + +int debug_flag = 0; +int force_overwrite = 0; +const off_t failed = (off_t)-1; + +const char *debuginfo_directory = "/usr/lib/debug"; + +#ifndef BUILD_ID_SUPPORT +const char *debuginfo_default_paths[] = { + "/bin", + "/usr/bin", + "/usr/libexec", + NULL +}; +#endif + +static int get_debug_info(void); + +static struct option longopts[] = { + {"symbols", required_argument, NULL, 's'}, + {"force", required_argument, NULL, 'f'}, + {"help", no_argument, NULL, 'h'}, + { 0, 0, 0, 0} +}; + +static void print_usage(void) +{ + printf("\n"); + printf("QEMU coredump filter version %s (qemu-core-filter-%s)\n", VERSION, VERSION); + printf("Usage:\n"); + printf("\n"); + printf(" qemu-core-filter [options] CORE DUMPFILE\n"); + printf("\n"); + printf("\n"); + printf("Available options:\n"); + printf(" -s|--symbols FILENAME\n"); + printf(" This is a pathname to the qemu debuginfo file.\n"); + printf(" This file must have the debug information.\n"); + printf(" -f|--force\n"); + printf(" force overwrite if o/p DUMPFILE already exists.\n"); + printf(" -d\n"); + printf(" Turn on the debug messages.\n"); + printf(" -h|--help\n"); + printf(" Prinf this message.\n"); + printf(" CORE:\n"); + printf(" This is a pathname to the qemu coredump image.\n"); + printf(" DUMPFILE:\n"); + printf(" This is a pathname to a file created by this command.\n"); + printf("\n"); +} + +static int get_elf64_ehdr(Elf64_Ehdr *ehdr) +{ + if (lseek(in_core->fd_corefile, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return FALSE; + } + if (read(in_core->fd_corefile, ehdr, sizeof(Elf64_Ehdr)) + != sizeof(Elf64_Ehdr)) { + ERRMSG("Can't read the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return FALSE; + } + if (ehdr->e_ident[EI_CLASS] != ELFCLASS64) { + ERRMSG("Can't get valid e_ident.\n"); + return FALSE; + } + return TRUE; +} + +static int get_elf64_phdr(int fd, char *filename, int index, Elf64_Phdr *phdr) +{ + off_t offset; + + offset = sizeof(Elf64_Ehdr) + sizeof(Elf64_Phdr) * index; + + if (lseek(fd, offset, SEEK_SET) == failed) { + ERRMSG("Can't seek %s. %s\n", filename, strerror(errno)); + return FALSE; + } + if (read(fd, phdr, sizeof(Elf64_Phdr)) != sizeof(Elf64_Phdr)) { + ERRMSG("Can't read %s. %s\n", filename, strerror(errno)); + return FALSE; + } + return TRUE; +} + +static int get_elf32_ehdr(Elf32_Ehdr *ehdr) +{ + if (lseek(in_core->fd_corefile, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return FALSE; + } + if (read(in_core->fd_corefile, ehdr, sizeof(Elf32_Ehdr)) + != sizeof(Elf32_Ehdr)) { + ERRMSG("Can't read the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return FALSE; + } + if (ehdr->e_ident[EI_CLASS] != ELFCLASS32) { + ERRMSG("Can't get valid e_ident.\n"); + return FALSE; + } + return TRUE; +} + +static int get_elf32_phdr(int fd, char *filename, int index, Elf32_Phdr *phdr) +{ + off_t offset; + + offset = sizeof(Elf32_Ehdr) + sizeof(Elf32_Phdr) * index; + + if (lseek(fd, offset, SEEK_SET) == failed) { + ERRMSG("Can't seek %s. %s\n", filename, strerror(errno)); + return FALSE; + } + if (read(fd, phdr, sizeof(Elf32_Phdr)) != sizeof(Elf32_Phdr)) { + ERRMSG("Can't read %s. %s\n", filename, strerror(errno)); + return FALSE; + } + return TRUE; +} + +static int check_elf_format(int fd, char *filename, int *phnum, int *num_load, + int *elf_type) +{ + int i; + Elf64_Ehdr ehdr64; + Elf64_Phdr load64; + Elf32_Ehdr ehdr32; + Elf32_Phdr load32; + + if (lseek(fd, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek %s. %s\n", filename, strerror(errno)); + return FALSE; + } + if (read(fd, &ehdr64, sizeof(Elf64_Ehdr)) != sizeof(Elf64_Ehdr)) { + ERRMSG("Can't read %s. %s\n", filename, strerror(errno)); + return FALSE; + } + if (lseek(fd, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek %s. %s\n", filename, strerror(errno)); + return FALSE; + } + if (read(fd, &ehdr32, sizeof(Elf32_Ehdr)) != sizeof(Elf32_Ehdr)) { + ERRMSG("Can't read %s. %s\n", filename, strerror(errno)); + return FALSE; + } + (*num_load) = 0; + if ((ehdr64.e_ident[EI_CLASS] == ELFCLASS64) + && (ehdr32.e_ident[EI_CLASS] != ELFCLASS32)) { + (*elf_type) = ehdr64.e_type; + (*phnum) = ehdr64.e_phnum; + for (i = 0; i < ehdr64.e_phnum; i++) { + if (!get_elf64_phdr(fd, filename, i, &load64)) { + ERRMSG("Can't find Phdr %d.\n", i); + return FALSE; + } + /* DEBUG_MSG("load64.p_type = %d\n", load64.p_type); */ + if (load64.p_type == PT_LOAD) + (*num_load)++; + } + return ELF64; + + } else if ((ehdr64.e_ident[EI_CLASS] != ELFCLASS64) + && (ehdr32.e_ident[EI_CLASS] == ELFCLASS32)) { + (*elf_type) = ehdr32.e_type; + (*phnum) = ehdr32.e_phnum; + for (i = 0; i < ehdr32.e_phnum; i++) { + if (!get_elf32_phdr(fd, filename, i, &load32)) { + ERRMSG("Can't find Phdr %d.\n", i); + return FALSE; + } + /* DEBUG_MSG("load32.p_type = %d\n", load32.p_type); */ + if (load32.p_type == PT_LOAD) + (*num_load)++; + } + return ELF32; + } + ERRMSG("Can't get valid ehdr.\n"); + return FALSE; +} + +static int open_debugfile(void) +{ + in_core->fd_qemu_debug = open(in_core->name_qemu_debug, O_RDONLY); + if (in_core->fd_qemu_debug < 0) { + ERRMSG("Can't open debuginfo file for reading. %s\n", + strerror(errno)); + return -errno; + } + return 0; +} + +static int qemu_validate_options(void) +{ + /* Open input core file for reading. */ + in_core->fd_corefile = open(in_core->corefile_name, + O_RDONLY | O_LARGEFILE); + if (in_core->fd_corefile < 0) { + ERRMSG("Can't open input core file for reading. %s\n", + strerror(errno)); + return -errno; + } + + /* Open debuginfo file */ + if (in_core->name_qemu_debug) { + int retval = open_debugfile(); + if (retval) { + return retval; + } + } + return 0; +} + +static void free_core_info(struct CoreDumpInfo * core_info) +{ + if (core_info->fd_corefile > 0) { + close(core_info->fd_corefile); + } + + if (core_info->fd_qemu_debug > 0) { + close(core_info->fd_qemu_debug); + } + + if (core_info->pt_load_segments) { + free(core_info->pt_load_segments); + } + +#ifdef BUILD_ID_SUPPORT + if (core_info->build_id) { + free(core_info->build_id); + } + + if (core_info->dbg_build_id) { + free(core_info->dbg_build_id); + } + +#else + if (core_info->pgm_name) { + free(core_info->pgm_name); + } +#endif +} + +static void free_guest_os_memmap(void) +{ + struct GuestOSMemMap *p, *n; + + p = guest_os_memmap; + + while (p) { + n = p->next; + free(p); + p = n; + } + guest_os_memmap = NULL; +} + +static int get_elf_phdr_memory(int index, Elf64_Phdr *phdr) +{ + Elf32_Phdr phdr32; + + if (in_core->flag_elf64) { /* ELF64 */ + if (!get_elf64_phdr(in_core->fd_corefile, + in_core->corefile_name, index, phdr)) { + ERRMSG("Can't find Phdr %d.\n", index); + return FALSE; + } + } else { + if (!get_elf32_phdr(in_core->fd_corefile, + in_core->corefile_name, index, &phdr32)) { + ERRMSG("Can't find Phdr %d.\n", index); + return FALSE; + } + memset(phdr, 0, sizeof(Elf64_Phdr)); + phdr->p_type = phdr32.p_type; + phdr->p_flags = phdr32.p_flags; + phdr->p_offset = phdr32.p_offset; + phdr->p_vaddr = phdr32.p_vaddr; + phdr->p_paddr = phdr32.p_paddr; + phdr->p_filesz = phdr32.p_filesz; + phdr->p_memsz = phdr32.p_memsz; + phdr->p_align = phdr32.p_align; + } + return TRUE; +} + +static int dump_Elf_load(Elf64_Phdr *prog, int num_load) +{ + struct PTLoadSegment *pls; + + if (prog->p_type != PT_LOAD) { + ERRMSG("%s isn't the dump memory.\n", in_core->corefile_name); + return FALSE; + } + + pls = &in_core->pt_load_segments[num_load]; + pls->virt_start = prog->p_vaddr; + pls->virt_end = pls->virt_start + prog->p_filesz; + pls->file_offset = prog->p_offset; + + DEBUG_MSG("LOAD (%d)\n", num_load); + DEBUG_MSG(" virt_start : %llx\n", pls->virt_start); + DEBUG_MSG(" virt_end : %llx\n", pls->virt_end); + + return TRUE; +} + +#ifndef BUILD_ID_SUPPORT +static char * get_core_note_pgmname(Elf *elfd, GElf_Phdr *phdr) +{ + Elf_Data *notes_data = NULL; + size_t offset = 0; + size_t name_offset = 0; + size_t desc_offset = 0; + size_t pgm_name_offset = 0; + GElf_Nhdr nhdr; + + notes_data = elf_getdata_rawchunk(elfd, phdr->p_offset, phdr->p_filesz, + ELF_T_NHDR); + if (!notes_data) { + ERRMSG("Can't get raw chunk from notes section.\n"); + return NULL; + } + + while ((offset = gelf_getnote(notes_data, offset, &nhdr, + &name_offset, &desc_offset)) > 0) { + if (nhdr.n_namesz != sizeof "CORE" || + memcmp(notes_data->d_buf + name_offset, "CORE", + sizeof "CORE")) { + continue; + } + + if (nhdr.n_type != NT_PRPSINFO) + continue; + + pgm_name_offset = desc_offset + nhdr.n_descsz - 80 - 16; + return strndup(notes_data->d_buf + pgm_name_offset, 16); + } + return NULL; +} + +static char * get_debug_file(const char *path) +{ + char *dbg_link, *ptr; + + dbg_link = malloc(strlen(debuginfo_directory) + strlen(path) + + strlen(in_core->pgm_name) + 1 + + sizeof ".debug" + 1); + if (!dbg_link) { + ERRMSG("Can't allocate memory for debuginfo file name.\n"); + return NULL; + } + + ptr = dbg_link; + ptr += sprintf(ptr, "%s%s/%s.debug", debuginfo_directory, path, + in_core->pgm_name); + + DEBUG_MSG("Looking for debuginfo file at: %s\n", dbg_link); + + ptr = realpath(dbg_link, NULL); + free(dbg_link); + + return ptr; +} + +static char * get_debugfile_by_core_name(void) +{ + char *dbg_file; + int i = 0; + + if (!in_core->pgm_name) { + return NULL; + } + + /* find DEBUG DIR/<default-path>/pgm_name>.debug file */ + for (i = 0; debuginfo_default_paths[i] != NULL; i++) { + dbg_file = get_debug_file(debuginfo_default_paths[i]); + + if (dbg_file) { + return dbg_file; + } + } + + return NULL; +} +#else + +static GElf_Addr * +get_auxv_phdr(Elf *elfd, GElf_Phdr *phdr, GElf_Addr *auxv_phdr) +{ + Elf_Data *notes_data, *auxv_data = NULL; + unsigned long auxv_data_sz = 0; + size_t offset = 0; + size_t name_offset = 0; + size_t desc_offset = 0; + size_t num_auxv = 0; + GElf_Nhdr nhdr; + int i; + + notes_data = elf_getdata_rawchunk(elfd, phdr->p_offset, phdr->p_filesz, + ELF_T_NHDR); + if (!notes_data) { + ERRMSG("Can't get raw chunk from notes section.\n"); + return NULL; + } + + while ((offset = gelf_getnote(notes_data, offset, &nhdr, + &name_offset, &desc_offset)) > 0) { + if (nhdr.n_namesz != sizeof "CORE" || + memcmp(notes_data->d_buf + name_offset, "CORE", + sizeof "CORE")) { + continue; + } + + if (nhdr.n_type != NT_AUXV) + continue; + + auxv_data_sz = nhdr.n_descsz; + auxv_data = elf_getdata_rawchunk(elfd, + phdr->p_offset + desc_offset, + nhdr.n_descsz, ELF_T_AUXV); + if (!auxv_data) { + ERRMSG("Can't get AUXV\n"); + return NULL; + } + DEBUG_MSG("Found AUXV at %p of size %lu\n", auxv_data, + auxv_data_sz); + break; + } + + if (!auxv_data || !auxv_data_sz) { + return NULL; + } + + num_auxv = auxv_data_sz / gelf_fsize(elfd, ELF_T_AUXV, 1, EV_CURRENT); + + for (i = 0; i < num_auxv; i++) { + GElf_auxv_t *auxv, auxv_mem; + + if ((auxv = gelf_getauxv(auxv_data, i, &auxv_mem)) == NULL) { + return NULL; + } + + if (auxv->a_type == AT_PHDR) { + *auxv_phdr = auxv->a_un.a_val; + DEBUG_MSG("AUXV Phdr = %llx\n", *auxv_phdr); + return auxv_phdr; + } + } + return NULL; +} + +static struct PTLoadSegment * find_memseg(GElf_Addr auxv_addr, size_t size) +{ + struct PTLoadSegment *pls = NULL; + int i; + + for (i = 0; i < in_core->num_load_memory; i++) { + pls = &in_core->pt_load_segments[i]; + + if (pls->virt_start <= auxv_addr && + pls->virt_end > (auxv_addr + size)) { + DEBUG_MSG("auxv phdr lies in load segment(O=0x%llx, " + "[0x%llx - 0x%llx])\n", + pls->file_offset, pls->virt_start, + pls->virt_end); + return pls; + } + } + return NULL; +} + +static Elf * get_app_elfd(Elf *elfd, GElf_Addr auxv_phdr) +{ + struct PTLoadSegment *pls; + unsigned long long filesz; + Elf_Data *data; + unsigned char *e_indent; + void *app_ehdr_mem; + + if ((pls = find_memseg(auxv_phdr, ELF_T_EHDR)) == NULL) { + ERRMSG("Can't locate load segment for AUXV\n"); + return NULL; + } + + filesz = pls->virt_end - pls->virt_start; + + data = elf_getdata_rawchunk(elfd, pls->file_offset, filesz, + ELF_T_EHDR); + if (!data) { + ERRMSG("Can't read the load segment.\n"); + return NULL; + } + + e_indent = (unsigned char *)data->d_buf; + if (memcmp(e_indent, ELFMAG, SELFMAG) || + (e_indent[EI_CLASS] <= ELFCLASSNONE) || + (e_indent[EI_CLASS] >= ELFCLASSNUM) || + (e_indent[EI_DATA] <= ELFDATANONE) || + (e_indent[EI_DATA] >= ELFDATANUM) || + (e_indent[EI_VERSION] <= EV_NONE) || + (e_indent[EI_VERSION] >= EV_NUM)) { + ERRMSG("Invalid ELF header in load segment.\n"); + return NULL; + } + + app_ehdr_mem = calloc(1, filesz); + if (!app_ehdr_mem) { + ERRMSG("Can't allocate memory for application ELF header.\n"); + return NULL; + } + + memcpy(app_ehdr_mem, data->d_buf, filesz); + + if (gelf_getclass(elfd) == ELFCLASS32) { + Elf32_Ehdr *ehdr = app_ehdr_mem; + ehdr->e_shoff = 0; + ehdr->e_shnum = 0; + } else { + Elf64_Ehdr *ehdr = app_ehdr_mem; + ehdr->e_shoff = 0; + ehdr->e_shnum = 0; + } + + return elf_memory(app_ehdr_mem, filesz); + +} + +static unsigned char * note_getbuildid(Elf_Data *data, size_t *len) +{ + GElf_Nhdr *nhdr; + size_t offset = 0, name_off, desc_off; + unsigned char *buildid = NULL; + int found = 0; + unsigned char *id; + + if (data->d_type != ELF_T_NHDR) { + return NULL; + } + + while (offset < data->d_size) { + nhdr = data->d_buf + offset; + name_off = offset + sizeof(*nhdr); + desc_off = name_off + NOTE_ALIGN(nhdr->n_namesz); + + if ((nhdr->n_namesz == sizeof "GNU") + && (nhdr->n_type == NT_GNU_BUILD_ID) + && (!memcmp(data->d_buf + name_off, "GNU", sizeof "GNU"))) { + DEBUG_MSG("Found build id at %#x %#x %#x\n", + offset, name_off, desc_off); + found = 1; + *len = nhdr->n_descsz; + id = data->d_buf + desc_off; + break; + } + offset = desc_off + NOTE_ALIGN(nhdr->n_descsz); + } + + if (found) { + buildid = malloc(*len); + if (!buildid) { + ERRMSG("Can't allocate memory for build-id\n"); + return NULL; + } + memcpy(buildid, id, *len); + return buildid; + } + return NULL; +} + +static unsigned char * get_buildid(Elf *elfd, size_t *len) +{ + GElf_Ehdr ehdr; + Elf_Data *data; + unsigned char *buildid = NULL; + int i; + + if (gelf_getehdr(elfd, &ehdr) == NULL) { + ERRMSG("Can't get ELF header\n"); + return NULL; + } + + for (i = 0; i < ehdr.e_phnum; i++) { + GElf_Phdr nphdr; + + if (gelf_getphdr(elfd, i, &nphdr) == NULL) { + return NULL; + } + + if (nphdr.p_type != PT_NOTE) { + continue; + } + + data = elf_getdata_rawchunk(elfd, nphdr.p_offset, + nphdr.p_filesz, ELF_T_NHDR); + if (!data) { + ERRMSG("Can't read NOTE segment.\n"); + return NULL; + } + + buildid = note_getbuildid(data, len); + if (buildid) { + return buildid; + } + } + + return NULL; +} + +static unsigned char * get_debug_buildid(size_t *len) +{ + Elf *elfd; + + if (lseek(dwarf_info.fd_debuginfo, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek the kernel file(%s). %s\n", + dwarf_info.name_debuginfo, strerror(errno)); + return FALSE; + } + if (!(elfd = elf_begin(dwarf_info.fd_debuginfo, ELF_C_READ_MMAP, NULL))) { + ERRMSG("Can't get first elf header of %s.\n", + dwarf_info.name_debuginfo); + return FALSE; + } + + dwarf_info.build_id = get_buildid(elfd, &dwarf_info.build_id_size); + elf_end(elfd); + + if (!dwarf_info.build_id) { + dwarf_info.cmd = DWARF_INFO_GET_BUILD_ID; + + if (!get_debug_info()) { + return NULL; + } + } + + *len = dwarf_info.build_id_size; + return dwarf_info.build_id; +} + +static char * get_debugfile_by_build_id(void) +{ + char *dbg_link, *ptr; + unsigned char *id; + int i; + + if (!in_core->build_id) { + return NULL; + } + + id = in_core->build_id; + + /* DEBUG DIR/.build-id/ab/cdef... */ + dbg_link = malloc(strlen(debuginfo_directory) + sizeof "/.build-id/" + + (2 * in_core->build_id_size) + 1 + + sizeof ".debug" + 1); + if (!dbg_link) { + ERRMSG("Can't allocate memory for debuginfo file name.\n"); + return NULL; + } + + ptr = dbg_link; + ptr += sprintf(ptr, "%s/.build-id/%02x/", debuginfo_directory, id[0]); + + for (i = 1; i < in_core->build_id_size; i++) { + ptr += sprintf(ptr, "%02x", id[i]); + } + + sprintf(ptr, ".debug"); + + DEBUG_MSG("Debuginfo link file: %s\n", dbg_link); + + ptr = realpath(dbg_link, NULL); + free(dbg_link); + + return ptr; +} +#endif + +#ifdef BUILD_ID_SUPPORT +static unsigned char * get_core_buildid(size_t *len) +#else +static char * get_core_pgmname(void) +#endif +{ + Elf *elfd = NULL; + GElf_Ehdr ehdr_mem, *ehdr = NULL; + int i; +#ifdef BUILD_ID_SUPPORT + Elf *app_elfd = NULL; + GElf_Addr auxv_phdr = 0; + unsigned char *build_id = NULL; +#else + char *pgm_name = NULL; +#endif + + if (lseek(in_core->fd_corefile, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return NULL; + } + + elfd = elf_begin(in_core->fd_corefile, ELF_C_READ_MMAP, NULL); + if (elfd == NULL) { + ERRMSG("Can't get first elf header of %s.\n", + in_core->corefile_name); + return NULL; + } + + if ((ehdr = gelf_getehdr(elfd, &ehdr_mem)) == NULL) { + ERRMSG("Can't get the ELF header\n"); + goto out; + } + + for (i = 0; i < ehdr->e_phnum; i++) { + GElf_Phdr *phdr, phdr_mem; + + if ((phdr = gelf_getphdr(elfd, i, &phdr_mem)) == NULL) { + goto out; + } + + if (phdr->p_type != PT_NOTE) { + continue; + } + +#ifdef BUILD_ID_SUPPORT + if (get_auxv_phdr(elfd, phdr, &auxv_phdr)) { + break; + } +#else + if ((pgm_name = get_core_note_pgmname(elfd, phdr))) { + break; + } +#endif + } + +#ifdef BUILD_ID_SUPPORT + if (!auxv_phdr) { + DEBUG_MSG("Can't locate AUXV Phdr.\n"); + goto out; + } + + /* + * Get application ELF header from load segment. + */ + if ((app_elfd = get_app_elfd(elfd, auxv_phdr)) == NULL) { + DEBUG_MSG("Couldn't find the Application ELF header.\n"); + goto out; + } + + build_id = get_buildid(app_elfd, len); +#endif + +out: + if (elfd) { + elf_end(elfd); + } + +#ifdef BUILD_ID_SUPPORT + return build_id; +#else + return pgm_name; +#endif +} + + +static int get_elf_info(void) +{ + int i, j, phnum, num_load, elf_format, elf_type; + Elf64_Phdr phdr; + + if (elf_version(EV_CURRENT) == EV_NONE) { + /* + * library out of date + */ + ERRMSG("Elf library out of date!\n"); + return -EINVAL; + } + + /* + * Check ELF64 or ELF32. + */ + elf_format = check_elf_format(in_core->fd_corefile, + in_core->corefile_name, + &phnum, &num_load, &elf_type); + + if (elf_format == ELF64) { + in_core->flag_elf64 = TRUE; + } else if (elf_format == ELF32) { + in_core->flag_elf64 = FALSE; + } else { + return -EINVAL; + } + + if (elf_type == ET_CORE) { + in_core->elf_type = ET_CORE; + } else { + return -EINVAL; + } + + in_core->num_load_memory = num_load; + + if (!in_core->num_load_memory) { + ERRMSG("Can't get the number of PT_LOAD.\n"); + return -EINVAL; + } + if ((in_core->pt_load_segments = (struct PTLoadSegment *) + calloc(1, sizeof(struct PTLoadSegment) * + in_core->num_load_memory)) == NULL) { + ERRMSG("Can't allocate memory for the PT_LOAD. %s\n", + strerror(errno)); + return -ENOMEM; + } + + for (i = 0, j = 0; i < phnum; i++) { + if (!get_elf_phdr_memory(i, &phdr)) { + return FALSE; + } + + if (phdr.p_type != PT_LOAD) { + continue; + } + + if (!in_core->page_size) { + in_core->page_size = (long) phdr.p_align; + } + + if (j == 0) { + in_core->offset_load = phdr.p_offset; + if (!in_core->offset_load) { + ERRMSG("Can't get the offset of page data.\n"); + return -EINVAL; + } + } + if (j >= in_core->num_load_memory) { + return -EINVAL; + } + + if (!dump_Elf_load(&phdr, j)) { + return -EINVAL; + } + j++; + } + +#ifdef BUILD_ID_SUPPORT + in_core->build_id = get_core_buildid(&in_core->build_id_size); + if (in_core->build_id == NULL) { + ERRMSG("Failed to extract build-id info from core file: %s\n", + in_core->corefile_name); + return -EINVAL; + } + + DEBUG_PRINT_BUILDID("core file build-id:", in_core->build_id, + in_core->build_id_size); +#else + in_core->pgm_name = get_core_pgmname(); + if (in_core->pgm_name == NULL) { + ERRMSG("Failed to extract program name from core file: %s\n", + in_core->corefile_name); + return -EINVAL; + } + DEBUG_MSG("Program name: %s\n", in_core->pgm_name); +#endif + + return 0; +} + +/* Get symbol address for a given symbol name from debuginfo file. */ +static unsigned long long get_symbol_addr(const char *symname) +{ + int i; + unsigned long long symbol = NOT_FOUND_SYMBOL; + Elf *elfd = NULL; + GElf_Shdr shdr; + GElf_Sym sym; + Elf_Data *data = NULL; + Elf_Scn *scn = NULL; + char *sym_name = NULL; + + if (lseek(dwarf_info.fd_debuginfo, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek the debuginfo file(%s). %s\n", + dwarf_info.name_debuginfo, strerror(errno)); + return NOT_FOUND_SYMBOL; + } + if (!(elfd = elf_begin(dwarf_info.fd_debuginfo, ELF_C_READ, NULL))) { + ERRMSG("Can't get first elf header of %s.\n", + dwarf_info.name_debuginfo); + return NOT_FOUND_SYMBOL; + } + while ((scn = elf_nextscn(elfd, scn)) != NULL) { + if (gelf_getshdr(scn, &shdr) == NULL) { + ERRMSG("Can't get section header.\n"); + goto out; + } + if (shdr.sh_type == SHT_SYMTAB) { + break; + } + } + if (!scn) { + ERRMSG("Can't find symbol table from debuginfo file %s.\n", + dwarf_info.name_debuginfo); + goto out; + } + + data = elf_getdata(scn, data); + + if ((!data) || (data->d_size == 0)) { + ERRMSG("No data in symbol table.\n"); + goto out; + } + + for (i = 0; i < (shdr.sh_size/shdr.sh_entsize); i++) { + if (gelf_getsym(data, i, &sym) == NULL) { + ERRMSG("Can't get symbol at index %d.\n", i); + goto out; + } + sym_name = elf_strptr(elfd, shdr.sh_link, sym.st_name); + + if (sym_name == NULL) { + continue; + } + + if (!strcmp(sym_name, symname)) { + symbol = sym.st_value; + break; + } + } +out: + if (elfd != NULL) + elf_end(elfd); + + return symbol; +} + +static int get_data_member_location(Dwarf_Die *die, long *offset) +{ + size_t expcnt; + Dwarf_Attribute attr; + Dwarf_Op *expr; + + if (dwarf_attr(die, DW_AT_data_member_location, &attr) == NULL) { + return FALSE; + } + + if (dwarf_getlocation(&attr, &expr, &expcnt) < 0) { + return FALSE; + } + + (*offset) = expr[0].number; + + return TRUE; +} + +static void search_member(Dwarf *dwarfd, Dwarf_Die *die) +{ + int tag; + long offset; + const char *name; + Dwarf_Die child, *walker; + + if (dwarf_child(die, &child) != 0) { + return; + } + + walker = &child; + + do { + tag = dwarf_tag(walker); + name = dwarf_diename(walker); + + if (tag != DW_TAG_member) { + continue; + } + + if ((!name) || strcmp(name, dwarf_info.member_name)) { + continue; + } + /* + * Get the member offset. + */ + if (!get_data_member_location(walker, &offset)) { + continue; + } + dwarf_info.member_offset = offset; + return; + } while (!dwarf_siblingof(walker, walker)); + + /* + * Return even if not found. + */ + return; +} + +static void search_structure(Dwarf *dwarfd, Dwarf_Die *die, int *found) +{ + int tag; + const char *name; + + /* + * If we get to here then we don't have any more + * children, check to see if this is a relevant tag + */ + do { + tag = dwarf_tag(die); + name = dwarf_diename(die); + if ((tag != DW_TAG_structure_type) || (!name) + || strcmp(name, dwarf_info.struct_name)) { + continue; + } + /* + * Skip if DW_AT_byte_size is not included. + */ + dwarf_info.struct_size = dwarf_bytesize(die); + + if (dwarf_info.struct_size > 0) { + break; + } + + } while (!dwarf_siblingof(die, die)); + + if (dwarf_info.struct_size <= 0) { + /* + * Not found the demanded structure. + */ + return; + } + + /* + * Found the demanded structure. + */ + *found = TRUE; + switch (dwarf_info.cmd) { + case DWARF_INFO_GET_STRUCT_SIZE: + break; + case DWARF_INFO_GET_MEMBER_OFFSET: + search_member(dwarfd, die); + break; + } +} + +static void search_die_tree(Dwarf *dwarfd, Dwarf_Die *die, int *found) +{ + Dwarf_Die child; + + /* + * start by looking at the children + */ + if (dwarf_child(die, &child) == 0) { + search_die_tree(dwarfd, &child, found); + } + + if (*found) { + return; + } + + search_structure(dwarfd, die, found); +} + +static int get_debug_info(void) +{ + int found = FALSE; + char *name = NULL; + size_t shstrndx, header_size; + uint8_t address_size, offset_size; + Dwarf *dwarfd = NULL; + Elf *elfd = NULL; + Dwarf_Off off = 0, next_off = 0, abbrev_offset = 0; + Elf_Scn *scn = NULL; + GElf_Shdr scnhdr_mem, *scnhdr = NULL; + Dwarf_Die cu_die; + const char *section_name = ".debug_info"; + + int ret = FALSE; + + if (lseek(dwarf_info.fd_debuginfo, 0, SEEK_SET) == failed) { + ERRMSG("Can't seek the kernel file(%s). %s\n", + dwarf_info.name_debuginfo, strerror(errno)); + return FALSE; + } + if (!(elfd = elf_begin(dwarf_info.fd_debuginfo, ELF_C_READ_MMAP, NULL))) { + ERRMSG("Can't get first elf header of %s.\n", + dwarf_info.name_debuginfo); + return FALSE; + } + if (!(dwarfd = dwarf_begin_elf(elfd, DWARF_C_READ, NULL))) { + ERRMSG("Can't create a handle for a new debug session.\n"); + goto out; + } + if (elf_getshdrstrndx(elfd, &shstrndx) < 0) { + ERRMSG("Can't get the section index of the string table.\n"); + goto out; + } + +#ifdef BUILD_ID_SUPPORT + if (dwarf_info.cmd == DWARF_INFO_GET_BUILD_ID) { + section_name = ".note.gnu.build-id"; + } +#endif + /* + * Search for ".debug_info" section. + */ + while ((scn = elf_nextscn(elfd, scn)) != NULL) { + scnhdr = gelf_getshdr(scn, &scnhdr_mem); + name = elf_strptr(elfd, shstrndx, scnhdr->sh_name); + if (!strcmp(name, section_name)) { + break; + } + } + if (strcmp(name, section_name)) { + ERRMSG("Can't get %s section.\n", section_name); + goto out; + } + +#ifdef BUILD_ID_SUPPORT + if (dwarf_info.cmd == DWARF_INFO_GET_BUILD_ID) { + Elf_Data *data = elf_getdata(scn, NULL); + if (!data) { + ERRMSG("Can't read the section data for build-id.\n"); + goto out; + } + dwarf_info.build_id = + note_getbuildid(data, &dwarf_info.build_id_size); + if (dwarf_info.build_id) { + ret = TRUE; + } + goto out; + } +#endif + + /* + * Search by each CompileUnit. + */ + while (dwarf_nextcu(dwarfd, off, &next_off, &header_size, + &abbrev_offset, &address_size, &offset_size) == 0) { + off += header_size; + if (dwarf_offdie(dwarfd, off, &cu_die) == NULL) { + ERRMSG("Can't get CU die.\n"); + goto out; + } + search_die_tree(dwarfd, &cu_die, &found); + if (found) { + break; + } + off = next_off; + } + ret = TRUE; +out: + if (dwarfd != NULL) { + dwarf_end(dwarfd); + } + if (elfd != NULL) { + elf_end(elfd); + } + + return ret; +} + +/* + * Get the size of structure. + */ +static long get_structure_size(const char *structname) +{ + dwarf_info.cmd = DWARF_INFO_GET_STRUCT_SIZE; + + dwarf_info.struct_name = structname; + dwarf_info.struct_size = NOT_FOUND_STRUCTURE; + + if (!get_debug_info()) { + return FAILED_DWARFINFO; + } + + return dwarf_info.struct_size; +} + +/* + * Get the offset of member. + */ +static long +get_member_offset(const char *structname, const char *membername, int cmd) +{ + dwarf_info.cmd = cmd; + dwarf_info.struct_name = structname; + dwarf_info.struct_size = NOT_FOUND_STRUCTURE; + dwarf_info.member_name = membername; + dwarf_info.member_offset = NOT_FOUND_STRUCTURE; + + if (!get_debug_info()) { + return FAILED_DWARFINFO; + } + + return dwarf_info.member_offset; +} + +static int is_in_same_page(unsigned long vaddr1, unsigned long vaddr2) +{ + if (round(vaddr1, in_core->page_size) + == round(vaddr2, in_core->page_size)) { + return TRUE; + } + + return FALSE; +} + +/* + * Convert virtual Address to File Offset. + * If this function returns 0x0, File Offset isn't found. + * The File Offset 0x0 is in the ELF header. + * It is not in the memory image. + */ +static off_t vaddr_to_offset(unsigned long long vaddr) +{ + int i; + off_t offset; + struct PTLoadSegment *pls; + + for (i = offset = 0; i < in_core->num_load_memory; i++) { + pls = &in_core->pt_load_segments[i]; + if ((vaddr >= pls->virt_start) + && (vaddr < pls->virt_end)) { + offset = (off_t)(vaddr - pls->virt_start) + pls->file_offset; + break; + } + } + return offset; +} + +static int readmem(unsigned long long addr, void *bufptr, size_t size) +{ + size_t read_size, next_size; + off_t offset = 0; + unsigned long long next_addr; + char *next_ptr; + + read_size = size; + + /* + * Read each page, because pages are not necessarily continuous. + * Ex) pages in vmalloc area + */ + if (!is_in_same_page(addr, addr + size - 1)) { + read_size = in_core->page_size - (addr % in_core->page_size); + next_addr = roundup(addr + 1, in_core->page_size); + next_size = size - read_size; + next_ptr = (char *)bufptr + read_size; + + if (!readmem(next_addr, next_ptr, next_size)) { + goto error; + } + } + + if (!(offset = vaddr_to_offset(addr))) { + ERRMSG("Can't convert a virtual address(%llx) to offset.\n", + addr); + goto error; + } + + if (lseek(in_core->fd_corefile, offset, SEEK_SET) == failed) { + ERRMSG("Can't seek the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + goto error; + } + + if (read(in_core->fd_corefile, bufptr, read_size) != read_size) { + ERRMSG("Can't read the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + goto error; + } + + return size; +error: + ERRMSG("addr:%llx, size:%zd\n", addr, size); + return FALSE; +} + +static int collect_debuginfo(char *dbg_filename, int dbg_fd) +{ +#ifdef BUILD_ID_SUPPORT + size_t len = 0; +#endif + + dwarf_info.fd_debuginfo = dbg_fd; + dwarf_info.name_debuginfo = dbg_filename; + +#ifdef BUILD_ID_SUPPORT + /* + * First verify whether debuginfo build-id matches with that of + * coredump file. + */ + in_core->dbg_build_id = get_debug_buildid(&len); + if (!in_core->dbg_build_id) { + ERRMSG("Can't read build-id from debuginfo file: %s\n", + dwarf_info.name_debuginfo); + return -EINVAL; + } + in_core->dbg_build_id_size = len; + DEBUG_PRINT_BUILDID("debuginfo file build-id:", + in_core->dbg_build_id, + in_core->dbg_build_id_size); + + if ((in_core->build_id_size != in_core->dbg_build_id_size) + || (memcmp(in_core->build_id, in_core->dbg_build_id, + in_core->build_id_size))) { + ERRMSG("build-id mismatch found." + " incorrect debuginfo file: %s\n", + dwarf_info.name_debuginfo); + return -EINVAL; + } +#endif + + /* + * Start loading symbol from debuginfo file. + */ + DEBUG_MSG("Reading symbols from %s.\n", dwarf_info.name_debuginfo); + in_core->ram_blocks.sym_name = (char *)RAM_BLOCKS_SYMNAME; + + /* Initialize ram_blocks symbol address */ + SYMBOL(ram_blocks) = get_symbol_addr(RAM_BLOCKS_SYMNAME); + if (SYMBOL(ram_blocks) == NOT_FOUND_SYMBOL) { + ERRMSG("Symbol not found: %s\n", RAM_BLOCKS_SYMNAME); + return -EINVAL; + } + DEBUG_MSG("ram_blocks:addr = 0x%llx\n", SYMBOL(ram_blocks)); + + /* Initialize ram_blocks symbol size */ + SIZE(ram_blocks) = get_structure_size(RAM_BLOCKS_STRUCTNAME); + if (SIZE(ram_blocks) == FAILED_DWARFINFO) { + return -EINVAL; + } + + DEBUG_MSG("ram_blocks:size = 0x%lx\n", SIZE(ram_blocks)); + + /* Initialize offset value for ram_blocks.host member */ + OFFSET(host) = get_member_offset(RAM_BLOCKS_STRUCTNAME, "host", + DWARF_INFO_GET_MEMBER_OFFSET); + if (OFFSET(host) == FAILED_DWARFINFO) { + return -EINVAL; + } + + DEBUG_MSG("ram_blocks:m.host = 0x%lx\n", OFFSET(host)); + + /* Initialize offset value for ram_blocks.length member */ + OFFSET(length) = get_member_offset(RAM_BLOCKS_STRUCTNAME, "length", + DWARF_INFO_GET_MEMBER_OFFSET); + if (OFFSET(length) == FAILED_DWARFINFO) { + return -EINVAL; + } + + DEBUG_MSG("ram_blocks:m.length = 0x%lx\n", OFFSET(length)); + + /* Initialize offset value for ram_blocks.next member */ + OFFSET(next) = get_member_offset(RAM_BLOCKS_STRUCTNAME, "next", + DWARF_INFO_GET_MEMBER_OFFSET); + if (OFFSET(next) == FAILED_DWARFINFO) { + return -EINVAL; + } + + DEBUG_MSG("ram_blocks:m.next = 0x%lx\n", OFFSET(next)); + return 0; +} + +static int get_qemu_debuginfo(void) +{ + /* + * If user has not specified debuginfo file then search it using + * build-id. + */ + if (!in_core->name_qemu_debug) { +#ifdef BUILD_ID_SUPPORT + in_core->name_qemu_debug = get_debugfile_by_build_id(); +#else + in_core->name_qemu_debug = get_debugfile_by_core_name(); +#endif + if (!in_core->name_qemu_debug) { + ERRMSG("Missing separate debuginfo file. " + "Use '-s' option to specify debuginfo file manually.\n"); + return -EINVAL; + } + + DEBUG_MSG("debuginfo file found: %s\n", in_core->name_qemu_debug); + if (open_debugfile()) + return -EINVAL; + } + + return collect_debuginfo(in_core->name_qemu_debug, in_core->fd_qemu_debug); +} + +static int update_guest_os_memmap(unsigned char *ram_block_mem) +{ + struct GuestOSMemMap *node; + + node = malloc(sizeof(*node)); + if (!node) { + DEBUG_MSG("Can't allocate memory for Guest OS memory map.\n"); + return -ENOMEM; + } + + node->mem_start = ULONG(ram_block_mem + OFFSET(host)); + node->mem_end = node->mem_start + ULONG(ram_block_mem + OFFSET(length)); + node->next = NULL; + + DEBUG_MSG("Guest OS memory: start(0x%llx) end(0x%llx)\n", node->mem_start, + node->mem_end); + + if (guest_os_memmap == NULL) { + guest_os_memmap = node; + } else { + node->next = guest_os_memmap; + guest_os_memmap = node; + } + return 0; +} + +static int build_guest_os_memmap(void) +{ + unsigned long ram_blocks; + unsigned char *ram_block_mem; + int err = 0; + + DEBUG_MSG("Building Guest OS memory mappings.\n"); + if (!readmem(in_core->ram_blocks.sym_addr, &ram_blocks, + sizeof(ram_blocks))) { + ERRMSG("Can't get the value of ram_blocks.\n"); + return -EINVAL; + } + + ram_block_mem = malloc(in_core->ram_blocks.sym_size); + if (!ram_block_mem) { + ERRMSG("Can't allocate memory for a struct RAMBlock. %s\n", + strerror(errno)); + return -ENOMEM; + } + + while (ram_blocks) { + DEBUG_MSG("ram_blocks => 0x%08lx\n", ram_blocks); + + if (!readmem(ram_blocks, ram_block_mem, + in_core->ram_blocks.sym_size)) { + ERRMSG("Can't get struct RAMBlock.\n"); + err = -EINVAL; + goto out; + } + + err = update_guest_os_memmap(ram_block_mem); + if (err) { + goto out; + } + + ram_blocks = ULONG(ram_block_mem + OFFSET(next)); + } +out: + free(ram_block_mem); + return err; +} + +static int get_phnum_memory(void) +{ + int phnum; + Elf64_Ehdr ehdr64; + Elf32_Ehdr ehdr32; + + if (in_core->flag_elf64) { /* ELF64 */ + if (!get_elf64_ehdr(&ehdr64)) { + ERRMSG("Can't get ehdr64.\n"); + return FALSE; + } + phnum = ehdr64.e_phnum; + } else { /* ELF32 */ + if (!get_elf32_ehdr(&ehdr32)) { + ERRMSG("Can't get ehdr32.\n"); + return FALSE; + } + phnum = ehdr32.e_phnum; + } + + return phnum; +} + +static int +write_and_check_space(int fd, void *buf, size_t buf_size, char *file_name) +{ + int status, written_size = 0; + + while (written_size < buf_size) { + status = write(fd, buf + written_size, + buf_size - written_size); + if (0 < status) { + written_size += status; + continue; + } + if (errno == ENOSPC) { + out_core->flag_nospace = TRUE; + } + ERRMSG("\nCan't write the dump file(%s). %s\n", + file_name, strerror(errno)); + return FALSE; + } + return TRUE; +} + +static int write_buffer(int fd, off_t offset, void *buf, size_t buf_size, + char *file_name) +{ + DEBUG_MSG("offset: 0x%08lx, off end: 0x%08lx, size = %zd\n", + (unsigned long int)offset, + (unsigned long int)(offset + buf_size), + buf_size); + + if (lseek(fd, offset, SEEK_SET) == failed) { + ERRMSG("Can't seek the dump file(%s). %s\n", + file_name, strerror(errno)); + return FALSE; + } + if (!write_and_check_space(fd, buf, buf_size, file_name)) { + return FALSE; + } + + return TRUE; +} + +static int write_cache(struct CacheData *cd, void *buf, size_t size) +{ + if (!write_buffer(cd->fd, cd->offset, buf, size, + cd->file_name)) { + return FALSE; + } + + cd->offset += size; + return TRUE; +} + +static int write_elf_phdr(struct CacheData *cd_hdr, Elf64_Phdr *load) +{ + Elf32_Phdr load32; + + if (in_core->flag_elf64) { /* ELF64 */ + if (!write_cache(cd_hdr, load, sizeof(Elf64_Phdr))) { + return FALSE; + } + } else { + memset(&load32, 0, sizeof(Elf32_Phdr)); + load32.p_type = load->p_type; + load32.p_flags = load->p_flags; + load32.p_offset = load->p_offset; + load32.p_vaddr = load->p_vaddr; + load32.p_paddr = load->p_paddr; + load32.p_filesz = load->p_filesz; + load32.p_memsz = load->p_memsz; + load32.p_align = load->p_align; + + if (!write_cache(cd_hdr, &load32, sizeof(Elf32_Phdr))) { + return FALSE; + } + } + return TRUE; +} + +static void guest_mem_adjust(Elf64_Phdr *load) +{ + struct GuestOSMemMap *p; + Elf64_Addr vm_start, vm_end; + + if (!load->p_filesz) { + return; + } + + vm_start = load->p_vaddr; + vm_end = load->p_vaddr + load->p_filesz; + + p = guest_os_memmap; + while (p) { + if ((p->mem_start >= vm_start) && (p->mem_start < vm_end)) { + load->p_filesz = p->mem_start - vm_start; + return; + } else if ((p->mem_end > vm_start) && (p->mem_end <= vm_end)) { + load->p_filesz = 0; + return; + } else if ((p->mem_start < vm_start) && (p->mem_end > vm_end)) { + load->p_filesz = 0; + return; + } + p = p->next; + } + return; +} + +static int write_elf_header(struct CacheData *cd_header) +{ + int i, phnum; + off_t offset_note_memory, offset_note_dumpfile; + size_t size_note; + Elf64_Ehdr ehdr64; + Elf32_Ehdr ehdr32; + Elf64_Phdr note; + + char *buf = NULL; + + int ret = FALSE; + + DEBUG_MSG("Writing ELF Header\n"); + + if (in_core->flag_elf64) { /* ELF64 */ + if (!get_elf64_ehdr(&ehdr64)) { + ERRMSG("Can't get ehdr64.\n"); + goto out; + } + } else { /* ELF32 */ + if (!get_elf32_ehdr(&ehdr32)) { + ERRMSG("Can't get ehdr32.\n"); + goto out; + } + } + + /* + * Write an ELF header. + */ + if (in_core->flag_elf64) { /* ELF64 */ + if (!write_buffer(out_core->fd_corefile, 0, &ehdr64, sizeof(ehdr64), + out_core->corefile_name)) { + goto out; + } + + } else { /* ELF32 */ + if (!write_buffer(out_core->fd_corefile, 0, &ehdr32, sizeof(ehdr32), + out_core->corefile_name)) { + goto out; + } + } + + /* + * Write a PT_NOTE header. + */ + DEBUG_MSG("Writing PT_NOTE Header\n"); + + if (!(phnum = get_phnum_memory())) { + goto out; + } + + for (i = 0; i < phnum; i++) { + if (!get_elf_phdr_memory(i, ¬e)) { + return FALSE; + } + if (note.p_type == PT_NOTE) { + break; + } + } + if (note.p_type != PT_NOTE) { + ERRMSG("Can't get a PT_NOTE header.\n"); + goto out; + } + + if (in_core->flag_elf64) { /* ELF64 */ + cd_header->offset = sizeof(ehdr64); + offset_note_dumpfile = sizeof(ehdr64) + + sizeof(Elf64_Phdr) * ehdr64.e_phnum; + } else { + cd_header->offset = sizeof(ehdr32); + offset_note_dumpfile = sizeof(ehdr32) + + sizeof(Elf32_Phdr) * ehdr32.e_phnum; + } + offset_note_memory = note.p_offset; + note.p_offset = offset_note_dumpfile; + size_note = note.p_filesz; + DEBUG_MSG("offset_note_memory(0x%08lx), offset_note_dumpfile(0x%08lx)," + "size_note = %zd\n", (unsigned long int) offset_note_memory, + (unsigned long int) offset_note_dumpfile, + size_note); + + if (!write_elf_phdr(cd_header, ¬e)) { + goto out; + } + + /* + * Write a PT_NOTE segment. + * PT_LOAD header will be written later. + */ + if ((buf = malloc(size_note)) == NULL) { + ERRMSG("Can't allocate memory for PT_NOTE segment. %s\n", + strerror(errno)); + goto out; + } + if (lseek(in_core->fd_corefile, offset_note_memory, SEEK_SET) == failed) { + ERRMSG("Can't seek the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + goto out; + } + if (read(in_core->fd_corefile, buf, size_note) != size_note) { + ERRMSG("Can't read the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + goto out; + } + if (!write_buffer(out_core->fd_corefile, offset_note_dumpfile, buf, + size_note, out_core->corefile_name)) { + goto out; + } + + /* + * Set an offset of PT_LOAD segment. + */ + out_core->offset_load = offset_note_dumpfile + size_note; + + ret = TRUE; +out: + if (buf != NULL) { + free(buf); + } + + return ret; +} + +static int +write_elf_load_segment(struct CacheData *cd_page, unsigned long long paddr, + off_t off_memory, long long size) +{ + long long bufsz_write; + long page_size = in_core->page_size; + char buf[in_core->page_size]; + + if (lseek(in_core->fd_corefile, off_memory, SEEK_SET) < 0) { + ERRMSG("Can't seek the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return FALSE; + } + + while (size > 0) { + if (size >= page_size) { + bufsz_write = page_size; + } else { + bufsz_write = size; + } + + if (read(in_core->fd_corefile, buf, bufsz_write) != bufsz_write) { + ERRMSG("Can't read the dump memory(%s). %s\n", + in_core->corefile_name, strerror(errno)); + return FALSE; + } + if (!write_cache(cd_page, buf, bufsz_write)) { + return FALSE; + } + size -= page_size; + } + + return TRUE; +} + +static int +write_elf_pages(struct CacheData *cd_header, struct CacheData *cd_page) +{ + int i, phnum; + unsigned long long paddr; + off_t off_memory; + Elf64_Phdr load; + + cd_page->offset = out_core->offset_load; + + if (!(phnum = get_phnum_memory())) { + return FALSE; + } + + for (i = 0; i < phnum; i++) { + if (!get_elf_phdr_memory(i, &load)) { + return FALSE; + } + + if (load.p_type != PT_LOAD) { + continue; + } + + off_memory = load.p_offset; + cd_page->offset = roundup(cd_page->offset, in_core->page_size); + load.p_offset = cd_page->offset; + + paddr = load.p_paddr; + + /* + * adjust PT_LOAD to filter guest os memory from + * cordump. + */ + guest_mem_adjust(&load); + + /* + * Write a PT_LOAD header. + */ + if (!write_elf_phdr(cd_header, &load)) { + return FALSE; + } + + /* + * Write a PT_LOAD segment. + */ + if (!write_elf_load_segment(cd_page, paddr, off_memory, + load.p_filesz)) { + return FALSE; + } + } + return TRUE; +} + +static int prepare_cache_data(struct CacheData *cd) +{ + cd->fd = out_core->fd_corefile; + cd->file_name = out_core->corefile_name; + + return 0; +} + +static int open_outcorefile(void) +{ + int out_flag = O_CREAT | O_WRONLY | O_LARGEFILE; + + if (force_overwrite) { + out_flag |= O_TRUNC; + } else { + out_flag |= O_EXCL; + } + + /* Open target core file for writing. */ + out_core->fd_corefile = open(out_core->corefile_name, out_flag, + S_IRUSR|S_IWUSR); + if (out_core->fd_corefile < 0) { + if (errno == EEXIST) { + ERRMSG("core file already exists. " + "Use '-f' option to overwrite. %s\n", + out_core->corefile_name); + } else { + ERRMSG("Can't open target core file for writing. %s\n", + strerror(errno)); + } + return -errno; + } + return 0; +} + +static int writeout_coredump(void) +{ + int ret = 0; + struct CacheData cd_header, cd_page; + + if ((ret = open_outcorefile())) { + return ret; + } + + out_core->flag_nospace = FALSE; + + prepare_cache_data(&cd_header); + prepare_cache_data(&cd_page); + + if (!write_elf_header(&cd_header)) { + goto out; + } + + write_elf_pages(&cd_header, &cd_page); + +out: + if (out_core->flag_nospace) { + return -ENOSPC; + } else { + return ret; + } +} + +int main(int argc, char *argv[]) +{ + int opt, err = 0; + + in_core = (struct CoreDumpInfo *) calloc(1, sizeof(struct CoreDumpInfo)); + if (in_core == NULL) { + ERRMSG("Can't allocate memory for core info cache. %s\n", + strerror(errno)); + return -ENOMEM; + } + + out_core = (struct CoreDumpInfo *) calloc(1, sizeof(struct CoreDumpInfo)); + if (out_core == NULL) { + ERRMSG("Can't allocate memory for core info cache. %s\n", + strerror(errno)); + return -ENOMEM; + } + + while ((opt = getopt_long(argc, argv, "s:hdf", longopts, NULL)) != -1) { + switch (opt) { + case 's': + in_core->name_qemu_debug = optarg; + break; + case 'h': + print_usage(); + goto out; + case 'd': + debug_flag = 1; + break; + case 'f': + force_overwrite = 1; + break; + default: + ERRMSG("Command line parameter is invalid.\n"); + ERRMSG("Try 'qemu-core-filter --help' for more information.\n"); + goto out; + } + } + + if (argc != optind + 2) { + print_usage(); + err = -EINVAL; + goto out; + } + + in_core->corefile_name = argv[optind]; + DEBUG_MSG("In core file name: %s\n", in_core->corefile_name); + + out_core->corefile_name = argv[optind + 1]; + DEBUG_MSG("Out core file name: %s\n", out_core->corefile_name); + + err = qemu_validate_options(); + if (err) { + goto out; + } + + err = get_elf_info(); + if (err) { + goto out; + } + + err = get_qemu_debuginfo(); + if (err) { + goto out; + } + + err = build_guest_os_memmap(); + if (err) { + goto out; + } + + err = writeout_coredump(); + +out: + if (in_core) { + free_core_info(in_core); + free(in_core); + } + if (out_core) { + free_core_info(out_core); + free(out_core); + } + free_guest_os_memmap(); + + return err; +} diff --git a/qemu-core-filter.h b/qemu-core-filter.h new file mode 100644 index 0000000..5dbdcd1 --- /dev/null +++ b/qemu-core-filter.h @@ -0,0 +1,216 @@ +/* + * qemu-core-filter.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2010 IBM Corporation + * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> + * + * Adopted from: http://sourceforge.net/projects/makedumpfile + * Some of the code source are adopted from makdumpfile project + * which is GPL License sources. + */ +#include "config-host.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/param.h> +#include <fcntl.h> +#include <errno.h> +#include <elf.h> +#include <gelf.h> +#include <elfutils/libdw.h> +#include <libelf.h> +#include <dwarf.h> +#include <getopt.h> + +#ifdef HAVE_ELFUTILS_VERSION_H +#include <elfutils/version.h> + +#if !_ELFUTILS_PREREQ(0, 142) +#define elf_getshdrstrndx elf_getshstrndx +#endif + +#if _ELFUTILS_PREREQ(0, 138) +/* build-id support is introduced only from elfutils >= 0.138 */ +#define BUILD_ID_SUPPORT 1 +#endif + +#else /* !HAVE_ELFUTILS_VERSION_H */ + +#define elf_getshdrstrndx elf_getshstrndx + +#endif + +#ifndef VERSION +#define VERSION "0.3.1" +#endif + +#define round(x, y) (((x) / (y)) * (y)) + +#define TRUE 1 +#define FALSE 0 + +#define ELF32 1 +#define ELF64 2 + +/* + * for symbol + */ +#define NOT_FOUND_SYMBOL (0) +#define RAM_BLOCKS_SYMNAME "ram_blocks" +#define RAM_BLOCKS_STRUCTNAME "RAMBlock" + +#define SYMBOL(X) (in_core->X.sym_addr) +#define SIZE(x) (in_core->x.sym_size) +#define OFFSET(x) (in_core->ram_blocks.offset.x) +#define ULONG(ADDR) (*((unsigned long *)(ADDR))) + +#define BITPERBYTE 8 +#define BYTE(x) (x / BITPERBYTE) +#define BIT(x) (x % BITPERBYTE) +#define NOTE_ALIGN(s) (((s) + 3) & -4U) + +/* + * for dwarf + */ + +#define NOT_FOUND_STRUCTURE (-1) +#define FAILED_DWARFINFO (-2) + +enum { + DWARF_INFO_GET_STRUCT_SIZE, + DWARF_INFO_GET_MEMBER_OFFSET, +#ifdef BUILD_ID_SUPPORT + DWARF_INFO_GET_BUILD_ID +#endif +}; + +struct DwarfInfo { + unsigned int cmd; /* IN */ + int fd_debuginfo; /* IN */ + const char *name_debuginfo; /* IN */ + const char *struct_name; /* IN */ + const char *member_name; /* IN */ + long struct_size; /* OUT */ + long member_offset; /* OUT */ +#ifdef BUILD_ID_SUPPORT + unsigned char *build_id; /* OUT */ + size_t build_id_size; /* OUT */ +#endif +}; + +struct PTLoadSegment { + off_t file_offset; + unsigned long long virt_start; + unsigned long long virt_end; +}; + +struct SymbolInfo { + char *sym_name; + unsigned long long sym_addr; + long sym_size; + struct offset { + long host; + long length; + long next; + } offset; +}; + +struct GuestOSMemMap { + unsigned long long mem_start; + unsigned long long mem_end; + struct GuestOSMemMap *next; +}; + +struct CoreDumpInfo { + + /* + * coredump image info + */ + char *corefile_name; /* Core dump file name. */ + int fd_corefile; + + /* + * General info + */ + int flag_elf64; /* flag for ELF64 format */ + int elf_type; + int flag_nospace; /* No space left on device */ + int offset_load; + + /* + * ELF info + */ + + int num_load_memory; + long page_size; +#ifdef BUILD_ID_SUPPORT + unsigned char *build_id; /* Unique build id */ + size_t build_id_size; /* Size of build id */ +#else + char *pgm_name; /* program name. */ +#endif + + /* + * Debug info + */ + + char *name_qemu_debug; /* QEMU Debuginfo file name */ + int fd_qemu_debug; +#ifdef BUILD_ID_SUPPORT + unsigned char *dbg_build_id; /* debuginfo build id */ + size_t dbg_build_id_size; +#endif + + struct PTLoadSegment *pt_load_segments; + struct SymbolInfo ram_blocks; +}; + +struct CacheData { + int fd; + char *file_name; + off_t offset; +}; + +#define ERRMSG(x...) \ +do { \ + fprintf(stderr, x); \ +} while (0) + +#define DEBUG_MSG(x...) \ +do { \ + if (debug_flag) { \ + fprintf(stderr, __FUNCTION__); \ + fprintf(stderr, ": "); \ + fprintf(stderr, x); \ + } \ +} while (0) + +#ifdef BUILD_ID_SUPPORT +#define DEBUG_PRINT_BUILDID(msg, id, sz) \ +do { \ + int i; \ + if (debug_flag) { \ + fprintf(stderr, __FUNCTION__); \ + fprintf(stderr, ": "); \ + fprintf(stderr, msg); \ + fprintf(stderr, " "); \ + for (i = 0; i < (sz); i++) \ + fprintf(stderr, "%02x", id[i]); \ + fprintf(stderr, "\n"); \ + } \ +} while (0) +#endif /* BUILD_ID_SUPPORT */ + ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter. 2010-06-22 4:01 ` [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter Mahesh Salgaonkar @ 2010-06-22 13:02 ` Anthony Liguori 2010-06-25 12:38 ` Mahesh Jagannath Salgaonkar 0 siblings, 1 reply; 5+ messages in thread From: Anthony Liguori @ 2010-06-22 13:02 UTC (permalink / raw) To: Mahesh Salgaonkar Cc: Maneesh Soni, Reinhard Buendgen, qemu-devel, Michael Mueller, Ananth N Mavinakayanahalli Hrm, the way you've sent this patch makes Thunderbird unhappy. It appears the whole thing is treated as an attachment. In the future, I'd suggest avoiding the Content-Disposition tag On 06/21/2010 11:01 PM, Mahesh Salgaonkar wrote: > Qemu userspace tool to filter out guest OS memory from qemu core file. > Use '--enable-core-filter' option while running ./configure script to build > qemu-core-filter tool. This is a post-processing tool works offline on qemu > coredumps. This tool helps to reuce the size of qemu core file (generated by > qemu crash) by removing guest OS memory from original core file. > > Currently it is only supported for Linux on x86 and x86_64. > There are a few problems with a tool like this. The first is that it depends on very specific internals of qemu (namely, the way we allocate ram). If we applied this, we would get subtle breakages if we made even the slightest changes to qemu. IMHO, the value is also questionable. There is quite a bit of sensitive data left in the core file after removing guest memory. Any DMA buffer may contain very sensitive data (for instance, if you crash during a read of /etc/shadow). Even the CPU registers can contain sensitive data. I think the only really viable approach to this problem is to take a white list approach instead of a black list approach. That means extracting useful information that we're reasonably confident preserves privacy. That would be information like a back trace, the crash reason, etc. Tools like apport and ABT already do exactly this and they also present an interface to the user to validate the data before sending it. They also provide a way to collect other information (like host dmesg). Regards, Anthony Liguori ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter. 2010-06-22 13:02 ` Anthony Liguori @ 2010-06-25 12:38 ` Mahesh Jagannath Salgaonkar 0 siblings, 0 replies; 5+ messages in thread From: Mahesh Jagannath Salgaonkar @ 2010-06-25 12:38 UTC (permalink / raw) To: Anthony Liguori Cc: Maneesh Soni, Reinhard Buendgen, qemu-devel, Michael Mueller, Ananth N Mavinakayanahalli On 06/22/2010 06:32 PM, Anthony Liguori wrote: > Hrm, the way you've sent this patch makes Thunderbird unhappy. It > appears the whole thing is treated as an attachment. In the future, I'd > suggest avoiding the Content-Disposition tag > Sure. I will take care of this in future. > On 06/21/2010 11:01 PM, Mahesh Salgaonkar wrote: >> Qemu userspace tool to filter out guest OS memory from qemu core file. >> Use '--enable-core-filter' option while running ./configure script to >> build >> qemu-core-filter tool. This is a post-processing tool works offline on >> qemu >> coredumps. This tool helps to reuce the size of qemu core file >> (generated by >> qemu crash) by removing guest OS memory from original core file. >> >> Currently it is only supported for Linux on x86 and x86_64. > > There are a few problems with a tool like this. The first is that it > depends on very specific internals of qemu (namely, the way we allocate > ram). If we applied this, we would get subtle breakages if we made even > the slightest changes to qemu. > This is the precise reason we would like to get this tool integrated into QEMU sources. So, whenever something changes in qemu, then this tool can be modified accordingly. > IMHO, the value is also questionable. There is quite a bit of sensitive > data left in the core file after removing guest memory. Any DMA buffer > may contain very sensitive data (for instance, if you crash during a > read of /etc/shadow). Even the CPU registers can contain sensitive data. > > I think the only really viable approach to this problem is to take a > white list approach instead of a black list approach. That means > extracting useful information that we're reasonably confident preserves > privacy. That would be information like a back trace, the crash reason, > etc. Tools like apport and ABT already do exactly this and they also > present an interface to the user to validate the data before sending it. > They also provide a way to collect other information (like host dmesg). > I understand your point but this tool can be of interest of people who sends out large coredump files to service centers for initial analysis. This tool will help them to reduce the size of core file before sending it to service centers for analysis. What do you think? > Regards, > > Anthony Liguori Regards, -Mahesh. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Qemu-devel] [patch 3/3] QEMU-C-F: qemu-core-filter documentation [not found] <20100622040018.044362998@mars.in.ibm.com> 2010-06-22 4:01 ` [Qemu-devel] [patch 1/3] QEMU-C-F: Bring up the elf.h header up-to-date with latest glibc elf.h header Mahesh Salgaonkar 2010-06-22 4:01 ` [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter Mahesh Salgaonkar @ 2010-06-22 4:02 ` Mahesh Salgaonkar 2 siblings, 0 replies; 5+ messages in thread From: Mahesh Salgaonkar @ 2010-06-22 4:02 UTC (permalink / raw) To: qemu-devel Cc: Ananth N Mavinakayanahalli, Mahesh Salgaonkar, Maneesh Soni, Michael Mueller, Reinhard Buendgen [-- Attachment #1: core-filter-docs.patch --] [-- Type: text/plain, Size: 5310 bytes --] Introduce documentation for qemu-core-filter in .texi format and update Makefile to generate man page. Modified qemu-doc.texi to include documentation for qemu-core-filter tool as a new chapter. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> --- Makefile | 14 ++++++-- qemu-core-filter.texi | 84 +++++++++++++++++++++++++++++++++++++++++++++++++ qemu-doc.texi | 6 ++++ 3 files changed, 101 insertions(+), 3 deletions(-) create mode 100644 qemu-core-filter.texi diff --git a/Makefile b/Makefile index 1174628..46f2873 100644 --- a/Makefile +++ b/Makefile @@ -29,7 +29,7 @@ $(call set-vpath, $(SRC_PATH):$(SRC_PATH)/hw) LIBS+=-lz $(LIBS_TOOLS) ifdef BUILD_DOCS -DOCS=qemu-doc.html qemu-tech.html qemu.1 qemu-img.1 qemu-nbd.8 QMP/qmp-commands.txt +DOCS=qemu-doc.html qemu-tech.html qemu.1 qemu-img.1 qemu-nbd.8 QMP/qmp-commands.txt qemu-core-filter.8 else DOCS= endif @@ -205,6 +205,7 @@ ifdef CONFIG_POSIX $(INSTALL_DATA) qemu.1 qemu-img.1 "$(DESTDIR)$(mandir)/man1" $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man8" $(INSTALL_DATA) qemu-nbd.8 "$(DESTDIR)$(mandir)/man8" + $(INSTALL_DATA) qemu-core-filter.8 "$(DESTDIR)$(mandir)/man8" endif install-sysconfig: @@ -290,6 +291,12 @@ qemu-nbd.8: qemu-nbd.texi pod2man --section=8 --center=" " --release=" " qemu-nbd.pod > $@, \ " GEN $@") +qemu-core-filter.8: qemu-core-filter.texi + $(call quiet-command, \ + perl -Ww -- $(SRC_PATH)/texi2pod.pl $< qemu-core-filter.pod && \ + pod2man --section=8 --center=" " --release=" \ + " qemu-core-filter.pod > $@, " GEN $@") + dvi: qemu-doc.dvi qemu-tech.dvi html: qemu-doc.html qemu-tech.html info: qemu-doc.info qemu-tech.info @@ -297,7 +304,7 @@ pdf: qemu-doc.pdf qemu-tech.pdf qemu-doc.dvi qemu-doc.html qemu-doc.info qemu-doc.pdf: \ qemu-img.texi qemu-nbd.texi qemu-options.texi \ - qemu-monitor.texi qemu-img-cmds.texi + qemu-monitor.texi qemu-img-cmds.texi qemu-core-filter.texi VERSION ?= $(shell cat VERSION) FILE = qemu-$(VERSION) @@ -344,7 +351,8 @@ tarbin: $(docdir)/qemu-tech.html \ $(mandir)/man1/qemu.1 \ $(mandir)/man1/qemu-img.1 \ - $(mandir)/man8/qemu-nbd.8 + $(mandir)/man8/qemu-nbd.8 \ + $(mandir)/man8/qemu-core-filter.8 # Include automatically generated dependency files -include $(wildcard *.d audio/*.d slirp/*.d block/*.d net/*.d) diff --git a/qemu-core-filter.texi b/qemu-core-filter.texi new file mode 100644 index 0000000..4253933 --- /dev/null +++ b/qemu-core-filter.texi @@ -0,0 +1,84 @@ +@example +@c man begin SYNOPSIS +usage: qemu-core-filter [OPTION] @var{CORE} @var{DUMPFILE} +@c man end +@end example + +@c man begin DESCRIPTION +When qemu[-kvm] application crashes it creats a huge coredump file that +contains guest OS memory. qemu-core-filter creates a small @var{DUMPFILE} by +excluding Guest OS memory pages using symbol information from qemu debuginfo. +qemu-core-filter needs qemu[-kvm] debug information to locate guest OS memory. +By default qemu-core-filter searches qemu[-kvm] debuginfo file in global debug +directory named @b{/usr/lib/debug} with the help of unique build-id from +coredump file. The debug information can be taken from +@b{/usr/lib/debug/usr/bin/qemu[-kvm].debug} file. + +@b{Example:} + +# qemu-core-filter core core.out + +@c man end + +@c man begin OPTIONS +@table @option +@item -s|--symbol @var{FILENAME} + +Specify a qemu debuginfo file that contains symbol table. By default +(without @b{-s} option) qemu-core-filter looks for debuginfo file under +@b{/usr/lib/debug} directory. Use this option if qemu-core-filter is unable to +find debuginfo file or it is located in different directory other than global +debug directory. + +@b{Example:} + +# qemu-core-filter -s /usr/lib/debug/usr/bin/qemu-kvm.debug core +core.out + +@b{NOTE:} For qemu-core-filter built with elfutils <= 0.137 (or without +build-id support), it is user's resposiblity to provide matching/correct +debuginfo file otherwise the tool will not produce expected results. + +@item -d +Print debugging message. + +@item -f|--force +Force overwrite of o/p @var{DUMPFILE} if already exists. + +@item @var{CORE} +This is a pathname to the qemu coredump file. + +@item @var{DUMPFILE} +This is a pathname to a file to be created by this command. + +@item -h +Show help message. + +@end table + +@c man end + +@c man begin RETURN CODES + +qemu-core-filter returns 0 on success and no-zero value on failure. + +@c man end + +@ignore + +@setfilename qemu-core-filter +@settitle filter out Guest OS memory from qemu coredump file. + +@c man begin AUTHOR +IBM Corporation http://www.ibm.com +@c man end + +@node Copyright + +@section Copyright +Licensed Materials - Property of IBM + +(C) Copyright IBM Corp.2010 All Rights Reserved +@bye + +@end ignore diff --git a/qemu-doc.texi b/qemu-doc.texi index e2c8e56..0b228a0 100644 --- a/qemu-doc.texi +++ b/qemu-doc.texi @@ -37,6 +37,7 @@ * QEMU System emulator for non PC targets:: * QEMU User space emulator:: * compilation:: Compilation from the sources +* QEMU User space core filter tool:: * License:: * Index:: @end menu @@ -2536,6 +2537,11 @@ TODO @end table +@node QEMU User space core filter tool +@chapter QEMU User space core filter tool + +@include qemu-core-filter.texi + @node License @appendix License ^ permalink raw reply related [flat|nested] 5+ messages in thread
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[not found] <20100622040018.044362998@mars.in.ibm.com>
2010-06-22 4:01 ` [Qemu-devel] [patch 1/3] QEMU-C-F: Bring up the elf.h header up-to-date with latest glibc elf.h header Mahesh Salgaonkar
2010-06-22 4:01 ` [Qemu-devel] [patch 2/3] QEMU-C-F: Introducing qemu userspace tool qemu-core-filter Mahesh Salgaonkar
2010-06-22 13:02 ` Anthony Liguori
2010-06-25 12:38 ` Mahesh Jagannath Salgaonkar
2010-06-22 4:02 ` [Qemu-devel] [patch 3/3] QEMU-C-F: qemu-core-filter documentation Mahesh Salgaonkar
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