From: "Blue Swirl" <blauwirbel@gmail.com>
To: qemu-devel <qemu-devel@nongnu.org>
Subject: [Qemu-devel] [RFC, PATCH] Support for loading 32 bit ELF files for 64 bit linux-user
Date: Sun, 7 Oct 2007 15:45:59 +0300 [thread overview]
Message-ID: <f43fc5580710070545x7f065e3ayef303218b3997b33@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 977 bytes --]
Hi,
This patch adds support for loading a 32 bit ELF file in the 64 bit
user mode emulator. This means that qemu-sparc64 can be used to
execute 32 bit ELF files containing V9 instructions (SPARC32PLUS).
This format is used by Solaris/Sparc and maybe by Debian in the
future.
Other targets shouldn't be affected, but I have done only compile
testing. Any comments?
$ cat helloworld.c
#define __KERNEL__
#include <asm/unistd.h>
static int errno;
static __inline__ _syscall1(void,exit,int,exitval)
static inline _syscall3(int,write,int,fd,const char *,buf,long,count)
int _start()
{
write(2, "Hello World!\n", sizeof("Hello World!\n"));
exit(0);
}
$ gcc -o helloworld.sparc32plus helloworld.c -g -Wa,-xarch=v9b -Wa,-32
-m32 -mcpu=ultrasparc -static -nostdlib
$ file helloworld.sparc32plus
helloworld.sparc32plus: ELF 32-bit MSB executable, SPARC32PLUS, V8+
Required, version 1 (SYSV), statically linked, not stripped
$ ./qemu-sparc64 ./helloworld.sparc32plus
Hello World!
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: elfload_32_and_64.diff --]
[-- Type: text/x-diff; name="elfload_32_and_64.diff", Size: 66117 bytes --]
Index: qemu/linux-user/elfload.c
===================================================================
--- qemu.orig/linux-user/elfload.c 2007-10-07 08:49:55.000000000 +0000
+++ qemu/linux-user/elfload.c 2007-10-07 12:17:56.000000000 +0000
@@ -48,7 +48,6 @@
#define ELF_START_MMAP 0x2aaaaab000ULL
#define elf_check_arch(x) ( ((x) == ELF_ARCH) )
-#define ELF_CLASS ELFCLASS64
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_X86_64
@@ -71,7 +70,6 @@
/*
* These are used to set parameters in the core dumps.
*/
-#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_386
@@ -102,7 +100,6 @@
#define elf_check_arch(x) ( (x) == EM_ARM )
-#define ELF_CLASS ELFCLASS32
#ifdef TARGET_WORDS_BIGENDIAN
#define ELF_DATA ELFDATA2MSB
#else
@@ -153,9 +150,8 @@
#define ELF_START_MMAP 0x80000000
-#define elf_check_arch(x) ( (x) == EM_SPARCV9 )
+#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
-#define ELF_CLASS ELFCLASS64
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_SPARCV9
@@ -167,7 +163,10 @@
regs->pc = infop->entry;
regs->npc = regs->pc + 4;
regs->y = 0;
- regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
+ if (infop->is_64bits)
+ regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
+ else
+ regs->u_regs[14] = infop->start_stack - 16 * 4;
}
#else
@@ -175,7 +174,6 @@
#define elf_check_arch(x) ( (x) == EM_SPARC )
-#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_SPARC
@@ -199,14 +197,10 @@
#define elf_check_arch(x) ( (x) == EM_PPC64 )
-#define ELF_CLASS ELFCLASS64
-
#else
#define elf_check_arch(x) ( (x) == EM_PPC )
-#define ELF_CLASS ELFCLASS32
-
#endif
#ifdef TARGET_WORDS_BIGENDIAN
@@ -287,11 +281,6 @@
#define elf_check_arch(x) ( (x) == EM_MIPS )
-#ifdef TARGET_MIPS64
-#define ELF_CLASS ELFCLASS64
-#else
-#define ELF_CLASS ELFCLASS32
-#endif
#ifdef TARGET_WORDS_BIGENDIAN
#define ELF_DATA ELFDATA2MSB
#else
@@ -317,7 +306,6 @@
#define elf_check_arch(x) ( (x) == EM_SH )
-#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_SH
@@ -339,7 +327,6 @@
#define elf_check_arch(x) ( (x) == EM_68K )
-#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_68K
@@ -364,7 +351,6 @@
#define elf_check_arch(x) ( (x) == ELF_ARCH )
-#define ELF_CLASS ELFCLASS64
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_ALPHA
@@ -391,6 +377,7 @@
#define ELF_HWCAP 0
#endif
+#define ELF_CLASS ELFCLASS32
#include "elf.h"
struct exec
@@ -457,59 +444,6 @@
static int load_aout_interp(void * exptr, int interp_fd);
-#ifdef BSWAP_NEEDED
-static void bswap_ehdr(struct elfhdr *ehdr)
-{
- bswap16s(&ehdr->e_type); /* Object file type */
- bswap16s(&ehdr->e_machine); /* Architecture */
- bswap32s(&ehdr->e_version); /* Object file version */
- bswaptls(&ehdr->e_entry); /* Entry point virtual address */
- bswaptls(&ehdr->e_phoff); /* Program header table file offset */
- bswaptls(&ehdr->e_shoff); /* Section header table file offset */
- bswap32s(&ehdr->e_flags); /* Processor-specific flags */
- bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */
- bswap16s(&ehdr->e_phentsize); /* Program header table entry size */
- bswap16s(&ehdr->e_phnum); /* Program header table entry count */
- bswap16s(&ehdr->e_shentsize); /* Section header table entry size */
- bswap16s(&ehdr->e_shnum); /* Section header table entry count */
- bswap16s(&ehdr->e_shstrndx); /* Section header string table index */
-}
-
-static void bswap_phdr(struct elf_phdr *phdr)
-{
- bswap32s(&phdr->p_type); /* Segment type */
- bswaptls(&phdr->p_offset); /* Segment file offset */
- bswaptls(&phdr->p_vaddr); /* Segment virtual address */
- bswaptls(&phdr->p_paddr); /* Segment physical address */
- bswaptls(&phdr->p_filesz); /* Segment size in file */
- bswaptls(&phdr->p_memsz); /* Segment size in memory */
- bswap32s(&phdr->p_flags); /* Segment flags */
- bswaptls(&phdr->p_align); /* Segment alignment */
-}
-
-static void bswap_shdr(struct elf_shdr *shdr)
-{
- bswap32s(&shdr->sh_name);
- bswap32s(&shdr->sh_type);
- bswaptls(&shdr->sh_flags);
- bswaptls(&shdr->sh_addr);
- bswaptls(&shdr->sh_offset);
- bswaptls(&shdr->sh_size);
- bswap32s(&shdr->sh_link);
- bswap32s(&shdr->sh_info);
- bswaptls(&shdr->sh_addralign);
- bswaptls(&shdr->sh_entsize);
-}
-
-static void bswap_sym(struct elf_sym *sym)
-{
- bswap32s(&sym->st_name);
- bswaptls(&sym->st_value);
- bswaptls(&sym->st_size);
- bswap16s(&sym->st_shndx);
-}
-#endif
-
/*
* 'copy_elf_strings()' copies argument/envelope strings from user
* memory to free pages in kernel mem. These are in a format ready
@@ -566,8 +500,8 @@
return p;
}
-unsigned long setup_arg_pages(target_ulong p, struct linux_binprm * bprm,
- struct image_info * info)
+static unsigned long setup_arg_pages(target_ulong p, struct linux_binprm *bprm,
+ struct image_info * info)
{
target_ulong stack_base, size, error;
int i;
@@ -658,700 +592,52 @@
}
}
-
-static unsigned long create_elf_tables(target_ulong p, int argc, int envc,
- struct elfhdr * exec,
- unsigned long load_addr,
- unsigned long load_bias,
- unsigned long interp_load_addr, int ibcs,
- struct image_info *info)
-{
- target_ulong sp;
- int size;
- target_ulong u_platform;
- const char *k_platform;
- const int n = sizeof(target_ulong);
-
- sp = p;
- u_platform = 0;
- k_platform = ELF_PLATFORM;
- if (k_platform) {
- size_t len = strlen(k_platform) + 1;
- sp -= (len + n - 1) & ~(n - 1);
- u_platform = sp;
- memcpy_to_target(sp, k_platform, len);
- }
- /*
- * Force 16 byte _final_ alignment here for generality.
- */
- sp = sp &~ (target_ulong)15;
- size = (DLINFO_ITEMS + 1) * 2;
- if (k_platform)
- size += 2;
-#ifdef DLINFO_ARCH_ITEMS
- size += DLINFO_ARCH_ITEMS * 2;
-#endif
- size += envc + argc + 2;
- size += (!ibcs ? 3 : 1); /* argc itself */
- size *= n;
- if (size & 15)
- sp -= 16 - (size & 15);
-
-#define NEW_AUX_ENT(id, val) do { \
- sp -= n; tputl(sp, val); \
- sp -= n; tputl(sp, id); \
- } while(0)
- NEW_AUX_ENT (AT_NULL, 0);
-
- /* There must be exactly DLINFO_ITEMS entries here. */
- NEW_AUX_ENT(AT_PHDR, (target_ulong)(load_addr + exec->e_phoff));
- NEW_AUX_ENT(AT_PHENT, (target_ulong)(sizeof (struct elf_phdr)));
- NEW_AUX_ENT(AT_PHNUM, (target_ulong)(exec->e_phnum));
- NEW_AUX_ENT(AT_PAGESZ, (target_ulong)(TARGET_PAGE_SIZE));
- NEW_AUX_ENT(AT_BASE, (target_ulong)(interp_load_addr));
- NEW_AUX_ENT(AT_FLAGS, (target_ulong)0);
- NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
- NEW_AUX_ENT(AT_UID, (target_ulong) getuid());
- NEW_AUX_ENT(AT_EUID, (target_ulong) geteuid());
- NEW_AUX_ENT(AT_GID, (target_ulong) getgid());
- NEW_AUX_ENT(AT_EGID, (target_ulong) getegid());
- NEW_AUX_ENT(AT_HWCAP, (target_ulong) ELF_HWCAP);
- if (k_platform)
- NEW_AUX_ENT(AT_PLATFORM, u_platform);
-#ifdef ARCH_DLINFO
- /*
- * ARCH_DLINFO must come last so platform specific code can enforce
- * special alignment requirements on the AUXV if necessary (eg. PPC).
- */
- ARCH_DLINFO;
-#endif
-#undef NEW_AUX_ENT
-
- sp = loader_build_argptr(envc, argc, sp, p, !ibcs);
- return sp;
-}
-
-
-static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
- int interpreter_fd,
- unsigned long *interp_load_addr)
-{
- struct elf_phdr *elf_phdata = NULL;
- struct elf_phdr *eppnt;
- unsigned long load_addr = 0;
- int load_addr_set = 0;
- int retval;
- unsigned long last_bss, elf_bss;
- unsigned long error;
- int i;
-
- elf_bss = 0;
- last_bss = 0;
- error = 0;
-
-#ifdef BSWAP_NEEDED
- bswap_ehdr(interp_elf_ex);
-#endif
- /* First of all, some simple consistency checks */
- if ((interp_elf_ex->e_type != ET_EXEC &&
- interp_elf_ex->e_type != ET_DYN) ||
- !elf_check_arch(interp_elf_ex->e_machine)) {
- return ~0UL;
- }
-
-
- /* Now read in all of the header information */
-
- if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > TARGET_PAGE_SIZE)
- return ~0UL;
-
- elf_phdata = (struct elf_phdr *)
- malloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
-
- if (!elf_phdata)
- return ~0UL;
-
- /*
- * If the size of this structure has changed, then punt, since
- * we will be doing the wrong thing.
- */
- if (interp_elf_ex->e_phentsize != sizeof(struct elf_phdr)) {
- free(elf_phdata);
- return ~0UL;
- }
-
- retval = lseek(interpreter_fd, interp_elf_ex->e_phoff, SEEK_SET);
- if(retval >= 0) {
- retval = read(interpreter_fd,
- (char *) elf_phdata,
- sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
- }
- if (retval < 0) {
- perror("load_elf_interp");
- exit(-1);
- free (elf_phdata);
- return retval;
- }
-#ifdef BSWAP_NEEDED
- eppnt = elf_phdata;
- for (i=0; i<interp_elf_ex->e_phnum; i++, eppnt++) {
- bswap_phdr(eppnt);
- }
-#endif
-
- if (interp_elf_ex->e_type == ET_DYN) {
- /* in order to avoid hardcoding the interpreter load
- address in qemu, we allocate a big enough memory zone */
- error = target_mmap(0, INTERP_MAP_SIZE,
- PROT_NONE, MAP_PRIVATE | MAP_ANON,
- -1, 0);
- if (error == -1) {
- perror("mmap");
- exit(-1);
- }
- load_addr = error;
- load_addr_set = 1;
- }
-
- eppnt = elf_phdata;
- for(i=0; i<interp_elf_ex->e_phnum; i++, eppnt++)
- if (eppnt->p_type == PT_LOAD) {
- int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
- int elf_prot = 0;
- unsigned long vaddr = 0;
- unsigned long k;
-
- if (eppnt->p_flags & PF_R) elf_prot = PROT_READ;
- if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
- if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
- if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) {
- elf_type |= MAP_FIXED;
- vaddr = eppnt->p_vaddr;
- }
- error = target_mmap(load_addr+TARGET_ELF_PAGESTART(vaddr),
- eppnt->p_filesz + TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr),
- elf_prot,
- elf_type,
- interpreter_fd,
- eppnt->p_offset - TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr));
-
- if (error == -1) {
- /* Real error */
- close(interpreter_fd);
- free(elf_phdata);
- return ~0UL;
- }
-
- if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
- load_addr = error;
- load_addr_set = 1;
- }
-
- /*
- * Find the end of the file mapping for this phdr, and keep
- * track of the largest address we see for this.
- */
- k = load_addr + eppnt->p_vaddr + eppnt->p_filesz;
- if (k > elf_bss) elf_bss = k;
-
- /*
- * Do the same thing for the memory mapping - between
- * elf_bss and last_bss is the bss section.
- */
- k = load_addr + eppnt->p_memsz + eppnt->p_vaddr;
- if (k > last_bss) last_bss = k;
- }
-
- /* Now use mmap to map the library into memory. */
-
- close(interpreter_fd);
-
- /*
- * Now fill out the bss section. First pad the last page up
- * to the page boundary, and then perform a mmap to make sure
- * that there are zeromapped pages up to and including the last
- * bss page.
- */
- padzero(elf_bss, last_bss);
- elf_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1); /* What we have mapped so far */
-
- /* Map the last of the bss segment */
- if (last_bss > elf_bss) {
- target_mmap(elf_bss, last_bss-elf_bss,
- PROT_READ|PROT_WRITE|PROT_EXEC,
- MAP_FIXED|MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
- }
- free(elf_phdata);
-
- *interp_load_addr = load_addr;
- return ((unsigned long) interp_elf_ex->e_entry) + load_addr;
-}
-
-/* Best attempt to load symbols from this ELF object. */
-static void load_symbols(struct elfhdr *hdr, int fd)
-{
- unsigned int i;
- struct elf_shdr sechdr, symtab, strtab;
- char *strings;
- struct syminfo *s;
-#if (ELF_CLASS == ELFCLASS64)
- // Disas uses 32 bit symbols
- struct elf32_sym *syms32 = NULL;
- struct elf_sym *sym;
-#endif
-
- lseek(fd, hdr->e_shoff, SEEK_SET);
- for (i = 0; i < hdr->e_shnum; i++) {
- if (read(fd, &sechdr, sizeof(sechdr)) != sizeof(sechdr))
- return;
-#ifdef BSWAP_NEEDED
- bswap_shdr(&sechdr);
-#endif
- if (sechdr.sh_type == SHT_SYMTAB) {
- symtab = sechdr;
- lseek(fd, hdr->e_shoff
- + sizeof(sechdr) * sechdr.sh_link, SEEK_SET);
- if (read(fd, &strtab, sizeof(strtab))
- != sizeof(strtab))
- return;
-#ifdef BSWAP_NEEDED
- bswap_shdr(&strtab);
-#endif
- goto found;
- }
- }
- return; /* Shouldn't happen... */
-
- found:
- /* Now know where the strtab and symtab are. Snarf them. */
- s = malloc(sizeof(*s));
- s->disas_symtab = malloc(symtab.sh_size);
-#if (ELF_CLASS == ELFCLASS64)
- syms32 = malloc(symtab.sh_size / sizeof(struct elf_sym)
- * sizeof(struct elf32_sym));
-#endif
- s->disas_strtab = strings = malloc(strtab.sh_size);
- if (!s->disas_symtab || !s->disas_strtab)
- return;
-
- lseek(fd, symtab.sh_offset, SEEK_SET);
- if (read(fd, s->disas_symtab, symtab.sh_size) != symtab.sh_size)
- return;
-
- for (i = 0; i < symtab.sh_size / sizeof(struct elf_sym); i++) {
-#ifdef BSWAP_NEEDED
- bswap_sym(s->disas_symtab + sizeof(struct elf_sym)*i);
-#endif
-#if (ELF_CLASS == ELFCLASS64)
- sym = s->disas_symtab + sizeof(struct elf_sym)*i;
- syms32[i].st_name = sym->st_name;
- syms32[i].st_info = sym->st_info;
- syms32[i].st_other = sym->st_other;
- syms32[i].st_shndx = sym->st_shndx;
- syms32[i].st_value = sym->st_value & 0xffffffff;
- syms32[i].st_size = sym->st_size & 0xffffffff;
-#endif
- }
-
-#if (ELF_CLASS == ELFCLASS64)
- free(s->disas_symtab);
- s->disas_symtab = syms32;
-#endif
- lseek(fd, strtab.sh_offset, SEEK_SET);
- if (read(fd, strings, strtab.sh_size) != strtab.sh_size)
- return;
- s->disas_num_syms = symtab.sh_size / sizeof(struct elf_sym);
- s->next = syminfos;
- syminfos = s;
-}
+#ifndef glue
+#define xglue(x, y) x ## y
+#define glue(x, y) xglue(x, y)
+#define stringify(s) tostring(s)
+#define tostring(s) #s
+#endif
+
+#define elf_word uint32_t
+#define bswapSZs bswap32s
+#define SZ 32
+#include "elfload_ops.h"
+
+#undef elfhdr
+#undef elf_phdr
+#undef elf_shdr
+#undef elf_sym
+#undef elf_note
+#undef elf_word
+#undef bswapSZs
+#undef SZ
+#define elfhdr elf64_hdr
+#define elf_phdr elf64_phdr
+#define elf_shdr elf64_shdr
+#define elf_sym elf64_sym
+#define elf_note elf64_note
+#define elf_word uint64_t
+#define bswapSZs bswap64s
+#define SZ 64
+#include "elfload_ops.h"
int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
struct image_info * info)
{
- struct elfhdr elf_ex;
- struct elfhdr interp_elf_ex;
- struct exec interp_ex;
- int interpreter_fd = -1; /* avoid warning */
- unsigned long load_addr, load_bias;
- int load_addr_set = 0;
- unsigned int interpreter_type = INTERPRETER_NONE;
- unsigned char ibcs2_interpreter;
- int i;
- unsigned long mapped_addr;
- struct elf_phdr * elf_ppnt;
- struct elf_phdr *elf_phdata;
- unsigned long elf_bss, k, elf_brk;
+ struct elfhdr *elf_ex;
int retval;
- char * elf_interpreter;
- unsigned long elf_entry, interp_load_addr = 0;
- int status;
- unsigned long start_code, end_code, end_data;
- unsigned long reloc_func_desc = 0;
- unsigned long elf_stack;
- char passed_fileno[6];
-
- ibcs2_interpreter = 0;
- status = 0;
- load_addr = 0;
- load_bias = 0;
- elf_ex = *((struct elfhdr *) bprm->buf); /* exec-header */
-#ifdef BSWAP_NEEDED
- bswap_ehdr(&elf_ex);
-#endif
-
- /* First of all, some simple consistency checks */
- if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
- (! elf_check_arch(elf_ex.e_machine))) {
- return -ENOEXEC;
- }
-
- bprm->p = copy_elf_strings(1, &bprm->filename, bprm->page, bprm->p);
- bprm->p = copy_elf_strings(bprm->envc,bprm->envp,bprm->page,bprm->p);
- bprm->p = copy_elf_strings(bprm->argc,bprm->argv,bprm->page,bprm->p);
- if (!bprm->p) {
- retval = -E2BIG;
- }
- /* Now read in all of the header information */
- elf_phdata = (struct elf_phdr *)malloc(elf_ex.e_phentsize*elf_ex.e_phnum);
- if (elf_phdata == NULL) {
- return -ENOMEM;
+ elf_ex = (struct elfhdr *) bprm->buf; /* exec-header */
+ if (elf_ex->e_ident[EI_CLASS] == ELFCLASS64) {
+ info->is_64bits = 1;
+ retval = load_elf_binary64(bprm, regs, info);
+ } else {
+ info->is_64bits = 0;
+ retval = load_elf_binary32(bprm, regs, info);
}
- retval = lseek(bprm->fd, elf_ex.e_phoff, SEEK_SET);
- if(retval > 0) {
- retval = read(bprm->fd, (char *) elf_phdata,
- elf_ex.e_phentsize * elf_ex.e_phnum);
- }
-
- if (retval < 0) {
- perror("load_elf_binary");
- exit(-1);
- free (elf_phdata);
- return -errno;
- }
-
-#ifdef BSWAP_NEEDED
- elf_ppnt = elf_phdata;
- for (i=0; i<elf_ex.e_phnum; i++, elf_ppnt++) {
- bswap_phdr(elf_ppnt);
- }
-#endif
- elf_ppnt = elf_phdata;
-
- elf_bss = 0;
- elf_brk = 0;
-
-
- elf_stack = ~0UL;
- elf_interpreter = NULL;
- start_code = ~0UL;
- end_code = 0;
- end_data = 0;
-
- for(i=0;i < elf_ex.e_phnum; i++) {
- if (elf_ppnt->p_type == PT_INTERP) {
- if ( elf_interpreter != NULL )
- {
- free (elf_phdata);
- free(elf_interpreter);
- close(bprm->fd);
- return -EINVAL;
- }
-
- /* This is the program interpreter used for
- * shared libraries - for now assume that this
- * is an a.out format binary
- */
-
- elf_interpreter = (char *)malloc(elf_ppnt->p_filesz);
-
- if (elf_interpreter == NULL) {
- free (elf_phdata);
- close(bprm->fd);
- return -ENOMEM;
- }
-
- retval = lseek(bprm->fd, elf_ppnt->p_offset, SEEK_SET);
- if(retval >= 0) {
- retval = read(bprm->fd, elf_interpreter, elf_ppnt->p_filesz);
- }
- if(retval < 0) {
- perror("load_elf_binary2");
- exit(-1);
- }
-
- /* If the program interpreter is one of these two,
- then assume an iBCS2 image. Otherwise assume
- a native linux image. */
-
- /* JRP - Need to add X86 lib dir stuff here... */
-
- if (strcmp(elf_interpreter,"/usr/lib/libc.so.1") == 0 ||
- strcmp(elf_interpreter,"/usr/lib/ld.so.1") == 0) {
- ibcs2_interpreter = 1;
- }
-
-#if 0
- printf("Using ELF interpreter %s\n", elf_interpreter);
-#endif
- if (retval >= 0) {
- retval = open(path(elf_interpreter), O_RDONLY);
- if(retval >= 0) {
- interpreter_fd = retval;
- }
- else {
- perror(elf_interpreter);
- exit(-1);
- /* retval = -errno; */
- }
- }
-
- if (retval >= 0) {
- retval = lseek(interpreter_fd, 0, SEEK_SET);
- if(retval >= 0) {
- retval = read(interpreter_fd,bprm->buf,128);
- }
- }
- if (retval >= 0) {
- interp_ex = *((struct exec *) bprm->buf); /* aout exec-header */
- interp_elf_ex=*((struct elfhdr *) bprm->buf); /* elf exec-header */
- }
- if (retval < 0) {
- perror("load_elf_binary3");
- exit(-1);
- free (elf_phdata);
- free(elf_interpreter);
- close(bprm->fd);
- return retval;
- }
- }
- elf_ppnt++;
- }
-
- /* Some simple consistency checks for the interpreter */
- if (elf_interpreter){
- interpreter_type = INTERPRETER_ELF | INTERPRETER_AOUT;
-
- /* Now figure out which format our binary is */
- if ((N_MAGIC(interp_ex) != OMAGIC) && (N_MAGIC(interp_ex) != ZMAGIC) &&
- (N_MAGIC(interp_ex) != QMAGIC)) {
- interpreter_type = INTERPRETER_ELF;
- }
-
- if (interp_elf_ex.e_ident[0] != 0x7f ||
- strncmp(&interp_elf_ex.e_ident[1], "ELF",3) != 0) {
- interpreter_type &= ~INTERPRETER_ELF;
- }
-
- if (!interpreter_type) {
- free(elf_interpreter);
- free(elf_phdata);
- close(bprm->fd);
- return -ELIBBAD;
- }
- }
-
- /* OK, we are done with that, now set up the arg stuff,
- and then start this sucker up */
-
- {
- char * passed_p;
-
- if (interpreter_type == INTERPRETER_AOUT) {
- snprintf(passed_fileno, sizeof(passed_fileno), "%d", bprm->fd);
- passed_p = passed_fileno;
-
- if (elf_interpreter) {
- bprm->p = copy_elf_strings(1,&passed_p,bprm->page,bprm->p);
- bprm->argc++;
- }
- }
- if (!bprm->p) {
- if (elf_interpreter) {
- free(elf_interpreter);
- }
- free (elf_phdata);
- close(bprm->fd);
- return -E2BIG;
- }
- }
-
- /* OK, This is the point of no return */
- info->end_data = 0;
- info->end_code = 0;
- info->start_mmap = (unsigned long)ELF_START_MMAP;
- info->mmap = 0;
- elf_entry = (unsigned long) elf_ex.e_entry;
-
- /* Do this so that we can load the interpreter, if need be. We will
- change some of these later */
- info->rss = 0;
- bprm->p = setup_arg_pages(bprm->p, bprm, info);
- info->start_stack = bprm->p;
-
- /* Now we do a little grungy work by mmaping the ELF image into
- * the correct location in memory. At this point, we assume that
- * the image should be loaded at fixed address, not at a variable
- * address.
- */
-
- for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
- int elf_prot = 0;
- int elf_flags = 0;
- unsigned long error;
-
- if (elf_ppnt->p_type != PT_LOAD)
- continue;
-
- if (elf_ppnt->p_flags & PF_R) elf_prot |= PROT_READ;
- if (elf_ppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
- if (elf_ppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
- elf_flags = MAP_PRIVATE | MAP_DENYWRITE;
- if (elf_ex.e_type == ET_EXEC || load_addr_set) {
- elf_flags |= MAP_FIXED;
- } else if (elf_ex.e_type == ET_DYN) {
- /* Try and get dynamic programs out of the way of the default mmap
- base, as well as whatever program they might try to exec. This
- is because the brk will follow the loader, and is not movable. */
- /* NOTE: for qemu, we do a big mmap to get enough space
- without hardcoding any address */
- error = target_mmap(0, ET_DYN_MAP_SIZE,
- PROT_NONE, MAP_PRIVATE | MAP_ANON,
- -1, 0);
- if (error == -1) {
- perror("mmap");
- exit(-1);
- }
- load_bias = TARGET_ELF_PAGESTART(error - elf_ppnt->p_vaddr);
- }
-
- error = target_mmap(TARGET_ELF_PAGESTART(load_bias + elf_ppnt->p_vaddr),
- (elf_ppnt->p_filesz +
- TARGET_ELF_PAGEOFFSET(elf_ppnt->p_vaddr)),
- elf_prot,
- (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE),
- bprm->fd,
- (elf_ppnt->p_offset -
- TARGET_ELF_PAGEOFFSET(elf_ppnt->p_vaddr)));
- if (error == -1) {
- perror("mmap");
- exit(-1);
- }
-
-#ifdef LOW_ELF_STACK
- if (TARGET_ELF_PAGESTART(elf_ppnt->p_vaddr) < elf_stack)
- elf_stack = TARGET_ELF_PAGESTART(elf_ppnt->p_vaddr);
-#endif
-
- if (!load_addr_set) {
- load_addr_set = 1;
- load_addr = elf_ppnt->p_vaddr - elf_ppnt->p_offset;
- if (elf_ex.e_type == ET_DYN) {
- load_bias += error -
- TARGET_ELF_PAGESTART(load_bias + elf_ppnt->p_vaddr);
- load_addr += load_bias;
- reloc_func_desc = load_bias;
- }
- }
- k = elf_ppnt->p_vaddr;
- if (k < start_code)
- start_code = k;
- k = elf_ppnt->p_vaddr + elf_ppnt->p_filesz;
- if (k > elf_bss)
- elf_bss = k;
- if ((elf_ppnt->p_flags & PF_X) && end_code < k)
- end_code = k;
- if (end_data < k)
- end_data = k;
- k = elf_ppnt->p_vaddr + elf_ppnt->p_memsz;
- if (k > elf_brk) elf_brk = k;
- }
-
- elf_entry += load_bias;
- elf_bss += load_bias;
- elf_brk += load_bias;
- start_code += load_bias;
- end_code += load_bias;
- // start_data += load_bias;
- end_data += load_bias;
-
- if (elf_interpreter) {
- if (interpreter_type & 1) {
- elf_entry = load_aout_interp(&interp_ex, interpreter_fd);
- }
- else if (interpreter_type & 2) {
- elf_entry = load_elf_interp(&interp_elf_ex, interpreter_fd,
- &interp_load_addr);
- }
- reloc_func_desc = interp_load_addr;
-
- close(interpreter_fd);
- free(elf_interpreter);
-
- if (elf_entry == ~0UL) {
- printf("Unable to load interpreter\n");
- free(elf_phdata);
- exit(-1);
- return 0;
- }
- }
-
- free(elf_phdata);
-
- if (loglevel)
- load_symbols(&elf_ex, bprm->fd);
-
- if (interpreter_type != INTERPRETER_AOUT) close(bprm->fd);
- info->personality = (ibcs2_interpreter ? PER_SVR4 : PER_LINUX);
-
-#ifdef LOW_ELF_STACK
- info->start_stack = bprm->p = elf_stack - 4;
-#endif
- bprm->p = create_elf_tables(bprm->p,
- bprm->argc,
- bprm->envc,
- &elf_ex,
- load_addr, load_bias,
- interp_load_addr,
- (interpreter_type == INTERPRETER_AOUT ? 0 : 1),
- info);
- info->load_addr = reloc_func_desc;
- info->start_brk = info->brk = elf_brk;
- info->end_code = end_code;
- info->start_code = start_code;
- info->start_data = end_code;
- info->end_data = end_data;
- info->start_stack = bprm->p;
-
- /* Calling set_brk effectively mmaps the pages that we need for the bss and break
- sections */
- set_brk(elf_bss, elf_brk);
-
- padzero(elf_bss, elf_brk);
-
-#if 0
- printf("(start_brk) %x\n" , info->start_brk);
- printf("(end_code) %x\n" , info->end_code);
- printf("(start_code) %x\n" , info->start_code);
- printf("(end_data) %x\n" , info->end_data);
- printf("(start_stack) %x\n" , info->start_stack);
- printf("(brk) %x\n" , info->brk);
-#endif
-
- if ( info->personality == PER_SVR4 )
- {
- /* Why this, you ask??? Well SVr4 maps page 0 as read-only,
- and some applications "depend" upon this behavior.
- Since we do not have the power to recompile these, we
- emulate the SVr4 behavior. Sigh. */
- mapped_addr = target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC,
- MAP_FIXED | MAP_PRIVATE, -1, 0);
- }
-
- info->entry = elf_entry;
-
- return 0;
+ return retval;
}
static int load_aout_interp(void * exptr, int interp_fd)
Index: qemu/linux-user/elfload_ops.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ qemu/linux-user/elfload_ops.h 2007-10-07 11:44:09.000000000 +0000
@@ -0,0 +1,749 @@
+#ifdef BSWAP_NEEDED
+static void glue(bswap_ehdr, SZ)(struct elfhdr *ehdr)
+{
+ bswap16s(&ehdr->e_type); /* Object file type */
+ bswap16s(&ehdr->e_machine); /* Architecture */
+ bswap32s(&ehdr->e_version); /* Object file version */
+ bswapSZs(&ehdr->e_entry); /* Entry point virtual address */
+ bswapSZs(&ehdr->e_phoff); /* Program header table file offset */
+ bswapSZs(&ehdr->e_shoff); /* Section header table file offset */
+ bswap32s(&ehdr->e_flags); /* Processor-specific flags */
+ bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */
+ bswap16s(&ehdr->e_phentsize); /* Program header table entry size */
+ bswap16s(&ehdr->e_phnum); /* Program header table entry count */
+ bswap16s(&ehdr->e_shentsize); /* Section header table entry size */
+ bswap16s(&ehdr->e_shnum); /* Section header table entry count */
+ bswap16s(&ehdr->e_shstrndx); /* Section header string table index */
+}
+
+static void glue(bswap_phdr, SZ)(struct elf_phdr *phdr)
+{
+ bswap32s(&phdr->p_type); /* Segment type */
+ bswapSZs(&phdr->p_offset); /* Segment file offset */
+ bswapSZs(&phdr->p_vaddr); /* Segment virtual address */
+ bswapSZs(&phdr->p_paddr); /* Segment physical address */
+ bswapSZs(&phdr->p_filesz); /* Segment size in file */
+ bswapSZs(&phdr->p_memsz); /* Segment size in memory */
+ bswap32s(&phdr->p_flags); /* Segment flags */
+ bswapSZs(&phdr->p_align); /* Segment alignment */
+}
+
+static void glue(bswap_shdr, SZ)(struct elf_shdr *shdr)
+{
+ bswap32s(&shdr->sh_name);
+ bswap32s(&shdr->sh_type);
+ bswapSZs(&shdr->sh_flags);
+ bswapSZs(&shdr->sh_addr);
+ bswapSZs(&shdr->sh_offset);
+ bswapSZs(&shdr->sh_size);
+ bswap32s(&shdr->sh_link);
+ bswap32s(&shdr->sh_info);
+ bswapSZs(&shdr->sh_addralign);
+ bswapSZs(&shdr->sh_entsize);
+}
+
+static void glue(bswap_sym, SZ)(struct elf_sym *sym)
+{
+ bswap32s(&sym->st_name);
+ bswapSZs(&sym->st_value);
+ bswapSZs(&sym->st_size);
+ bswap16s(&sym->st_shndx);
+}
+#endif
+
+static unsigned long glue(create_elf_tables, SZ)(target_ulong p, int argc,
+ int envc,
+ struct elfhdr *exec,
+ unsigned long load_addr,
+ unsigned long load_bias,
+ unsigned long interp_load_addr,
+ int ibcs,
+ struct image_info *info)
+{
+ target_ulong sp;
+ int size;
+ target_ulong u_platform;
+ const char *k_platform;
+ const int n = sizeof(target_ulong);
+
+ sp = p;
+ u_platform = 0;
+ k_platform = ELF_PLATFORM;
+ if (k_platform) {
+ size_t len = strlen(k_platform) + 1;
+ sp -= (len + n - 1) & ~(n - 1);
+ u_platform = sp;
+ memcpy_to_target(sp, k_platform, len);
+ }
+ /*
+ * Force 16 byte _final_ alignment here for generality.
+ */
+ sp = sp & ~(target_ulong)15;
+ size = (DLINFO_ITEMS + 1) * 2;
+ if (k_platform)
+ size += 2;
+#ifdef DLINFO_ARCH_ITEMS
+ size += DLINFO_ARCH_ITEMS * 2;
+#endif
+ size += envc + argc + 2;
+ size += (!ibcs ? 3 : 1); /* argc itself */
+ size *= n;
+ if (size & 15)
+ sp -= 16 - (size & 15);
+
+#define NEW_AUX_ENT(id, val) do { \
+ sp -= n; tputl(sp, val); \
+ sp -= n; tputl(sp, id); \
+ } while (0)
+
+ NEW_AUX_ENT (AT_NULL, 0);
+
+ /* There must be exactly DLINFO_ITEMS entries here. */
+ NEW_AUX_ENT(AT_PHDR, (target_ulong)(load_addr + exec->e_phoff));
+ NEW_AUX_ENT(AT_PHENT, (target_ulong)(sizeof (struct elf_phdr)));
+ NEW_AUX_ENT(AT_PHNUM, (target_ulong)(exec->e_phnum));
+ NEW_AUX_ENT(AT_PAGESZ, (target_ulong)(TARGET_PAGE_SIZE));
+ NEW_AUX_ENT(AT_BASE, (target_ulong)(interp_load_addr));
+ NEW_AUX_ENT(AT_FLAGS, (target_ulong)0);
+ NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
+ NEW_AUX_ENT(AT_UID, (target_ulong) getuid());
+ NEW_AUX_ENT(AT_EUID, (target_ulong) geteuid());
+ NEW_AUX_ENT(AT_GID, (target_ulong) getgid());
+ NEW_AUX_ENT(AT_EGID, (target_ulong) getegid());
+ NEW_AUX_ENT(AT_HWCAP, (target_ulong) ELF_HWCAP);
+ if (k_platform)
+ NEW_AUX_ENT(AT_PLATFORM, u_platform);
+#ifdef ARCH_DLINFO
+ /*
+ * ARCH_DLINFO must come last so platform specific code can enforce
+ * special alignment requirements on the AUXV if necessary (eg. PPC).
+ */
+ ARCH_DLINFO;
+#endif
+#undef NEW_AUX_ENT
+
+ sp = loader_build_argptr(envc, argc, sp, p, !ibcs);
+ return sp;
+}
+
+static unsigned long glue(load_elf_interp, SZ)(struct elfhdr *interp_elf_ex,
+ int interpreter_fd,
+ unsigned long *interp_load_addr)
+{
+ struct elf_phdr *elf_phdata = NULL;
+ struct elf_phdr *eppnt;
+ unsigned long load_addr = 0;
+ int load_addr_set = 0;
+ int retval;
+ unsigned long last_bss, elf_bss;
+ unsigned long error;
+ int i;
+
+ elf_bss = 0;
+ last_bss = 0;
+ error = 0;
+
+#ifdef BSWAP_NEEDED
+ glue(bswap_ehdr, SZ)(interp_elf_ex);
+#endif
+ /* First of all, some simple consistency checks */
+ if ((interp_elf_ex->e_type != ET_EXEC &&
+ interp_elf_ex->e_type != ET_DYN) ||
+ !elf_check_arch(interp_elf_ex->e_machine)) {
+ return ~0UL;
+ }
+
+ /* Now read in all of the header information */
+
+ if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > TARGET_PAGE_SIZE)
+ return ~0UL;
+
+ elf_phdata = (struct elf_phdr *)
+ malloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
+
+ if (!elf_phdata)
+ return ~0UL;
+
+ /*
+ * If the size of this structure has changed, then punt, since
+ * we will be doing the wrong thing.
+ */
+ if (interp_elf_ex->e_phentsize != sizeof(struct elf_phdr)) {
+ free(elf_phdata);
+ return ~0UL;
+ }
+
+ retval = lseek(interpreter_fd, interp_elf_ex->e_phoff, SEEK_SET);
+ if (retval >= 0) {
+ retval = read(interpreter_fd,
+ (char *) elf_phdata,
+ sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
+ }
+ if (retval < 0) {
+ perror("load_elf_interp");
+ exit(-1);
+ free (elf_phdata);
+ return retval;
+ }
+#ifdef BSWAP_NEEDED
+ eppnt = elf_phdata;
+ for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
+ glue(bswap_phdr, SZ)(eppnt);
+ }
+#endif
+
+ if (interp_elf_ex->e_type == ET_DYN) {
+ /* in order to avoid hardcoding the interpreter load
+ address in qemu, we allocate a big enough memory zone */
+ error = target_mmap(0, INTERP_MAP_SIZE,
+ PROT_NONE, MAP_PRIVATE | MAP_ANON,
+ -1, 0);
+ if (error == -1) {
+ perror("mmap");
+ exit(-1);
+ }
+ load_addr = error;
+ load_addr_set = 1;
+ }
+
+ eppnt = elf_phdata;
+ for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++)
+ if (eppnt->p_type == PT_LOAD) {
+ int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
+ int elf_prot = 0;
+ unsigned long vaddr = 0;
+ unsigned long k;
+
+ if (eppnt->p_flags & PF_R)
+ elf_prot = PROT_READ;
+ if (eppnt->p_flags & PF_W)
+ elf_prot |= PROT_WRITE;
+ if (eppnt->p_flags & PF_X)
+ elf_prot |= PROT_EXEC;
+ if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) {
+ elf_type |= MAP_FIXED;
+ vaddr = eppnt->p_vaddr;
+ }
+ error = target_mmap(load_addr + TARGET_ELF_PAGESTART(vaddr),
+ eppnt->p_filesz + TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr),
+ elf_prot,
+ elf_type,
+ interpreter_fd,
+ eppnt->p_offset - TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr));
+
+ if (error == -1) {
+ /* Real error */
+ close(interpreter_fd);
+ free(elf_phdata);
+ return ~0UL;
+ }
+
+ if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
+ load_addr = error;
+ load_addr_set = 1;
+ }
+
+ /*
+ * Find the end of the file mapping for this phdr, and keep
+ * track of the largest address we see for this.
+ */
+ k = load_addr + eppnt->p_vaddr + eppnt->p_filesz;
+ if (k > elf_bss)
+ elf_bss = k;
+
+ /*
+ * Do the same thing for the memory mapping - between
+ * elf_bss and last_bss is the bss section.
+ */
+ k = load_addr + eppnt->p_memsz + eppnt->p_vaddr;
+ if (k > last_bss)
+ last_bss = k;
+ }
+
+ /* Now use mmap to map the library into memory. */
+
+ close(interpreter_fd);
+
+ /*
+ * Now fill out the bss section. First pad the last page up
+ * to the page boundary, and then perform a mmap to make sure
+ * that there are zeromapped pages up to and including the last
+ * bss page.
+ */
+ padzero(elf_bss, last_bss);
+ /* What we have mapped so far */
+ elf_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1);
+
+ /* Map the last of the bss segment */
+ if (last_bss > elf_bss) {
+ target_mmap(elf_bss, last_bss-elf_bss,
+ PROT_READ | PROT_WRITE | PROT_EXEC,
+ MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ }
+ free(elf_phdata);
+
+ *interp_load_addr = load_addr;
+ return ((unsigned long)interp_elf_ex->e_entry) + load_addr;
+}
+
+/* Best attempt to load symbols from this ELF object. */
+static void glue(load_symbols, SZ)(struct elfhdr *hdr, int fd)
+{
+ unsigned int i;
+ struct elf_shdr sechdr, symtab, strtab;
+ char *strings;
+ struct syminfo *s;
+#if (ELF_CLASS == ELFCLASS64)
+ // Disas uses 32 bit symbols
+ struct elf32_sym *syms32 = NULL;
+ struct elf_sym *sym;
+#endif
+
+ lseek(fd, hdr->e_shoff, SEEK_SET);
+ for (i = 0; i < hdr->e_shnum; i++) {
+ if (read(fd, &sechdr, sizeof(sechdr)) != sizeof(sechdr))
+ return;
+#ifdef BSWAP_NEEDED
+ glue(bswap_shdr, SZ)(&sechdr);
+#endif
+ if (sechdr.sh_type == SHT_SYMTAB) {
+ symtab = sechdr;
+ lseek(fd, hdr->e_shoff
+ + sizeof(sechdr) * sechdr.sh_link, SEEK_SET);
+ if (read(fd, &strtab, sizeof(strtab))
+ != sizeof(strtab))
+ return;
+#ifdef BSWAP_NEEDED
+ glue(bswap_shdr, SZ)(&strtab);
+#endif
+ goto found;
+ }
+ }
+ return; /* Shouldn't happen... */
+
+ found:
+ /* Now know where the strtab and symtab are. Snarf them. */
+ s = malloc(sizeof(*s));
+ s->disas_symtab = malloc(symtab.sh_size);
+#if (ELF_CLASS == ELFCLASS64)
+ syms32 = malloc(symtab.sh_size / sizeof(struct elf_sym)
+ * sizeof(struct elf32_sym));
+#endif
+ s->disas_strtab = strings = malloc(strtab.sh_size);
+ if (!s->disas_symtab || !s->disas_strtab)
+ return;
+
+ lseek(fd, symtab.sh_offset, SEEK_SET);
+ if (read(fd, s->disas_symtab, symtab.sh_size) != symtab.sh_size)
+ return;
+
+ for (i = 0; i < symtab.sh_size / sizeof(struct elf_sym); i++) {
+#ifdef BSWAP_NEEDED
+ glue(bswap_sym, SZ)(s->disas_symtab + sizeof(struct elf_sym)*i);
+#endif
+#if (ELF_CLASS == ELFCLASS64)
+ sym = s->disas_symtab + sizeof(struct elf_sym)*i;
+ syms32[i].st_name = sym->st_name;
+ syms32[i].st_info = sym->st_info;
+ syms32[i].st_other = sym->st_other;
+ syms32[i].st_shndx = sym->st_shndx;
+ syms32[i].st_value = sym->st_value & 0xffffffff;
+ syms32[i].st_size = sym->st_size & 0xffffffff;
+#endif
+ }
+
+#if (ELF_CLASS == ELFCLASS64)
+ free(s->disas_symtab);
+ s->disas_symtab = syms32;
+#endif
+ lseek(fd, strtab.sh_offset, SEEK_SET);
+ if (read(fd, strings, strtab.sh_size) != strtab.sh_size)
+ return;
+ s->disas_num_syms = symtab.sh_size / sizeof(struct elf_sym);
+ s->next = syminfos;
+ syminfos = s;
+}
+
+static int glue(load_elf_binary, SZ)(struct linux_binprm *bprm,
+ struct target_pt_regs *regs,
+ struct image_info *info)
+{
+ struct elfhdr elf_ex;
+ struct elfhdr interp_elf_ex;
+ struct exec interp_ex;
+ int interpreter_fd = -1; /* avoid warning */
+ unsigned long load_addr, load_bias;
+ int load_addr_set = 0;
+ unsigned int interpreter_type = INTERPRETER_NONE;
+ unsigned char ibcs2_interpreter;
+ int i;
+ unsigned long mapped_addr;
+ struct elf_phdr * elf_ppnt;
+ struct elf_phdr *elf_phdata;
+ unsigned long elf_bss, k, elf_brk;
+ int retval;
+ char * elf_interpreter;
+ unsigned long elf_entry, interp_load_addr = 0;
+ int status;
+ unsigned long start_code, end_code, end_data;
+ unsigned long reloc_func_desc = 0;
+ unsigned long elf_stack;
+ char passed_fileno[6];
+
+ ibcs2_interpreter = 0;
+ status = 0;
+ load_addr = 0;
+ load_bias = 0;
+ elf_ex = *((struct elfhdr *) bprm->buf); /* exec-header */
+#ifdef BSWAP_NEEDED
+ glue(bswap_ehdr, SZ)(&elf_ex);
+#endif
+
+ /* First of all, some simple consistency checks */
+ if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
+ (! elf_check_arch(elf_ex.e_machine))) {
+ return -ENOEXEC;
+ }
+
+ bprm->p = copy_elf_strings(1, &bprm->filename, bprm->page, bprm->p);
+ bprm->p = copy_elf_strings(bprm->envc, bprm->envp, bprm->page, bprm->p);
+ bprm->p = copy_elf_strings(bprm->argc, bprm->argv, bprm->page, bprm->p);
+ if (!bprm->p) {
+ retval = -E2BIG;
+ }
+
+ /* Now read in all of the header information */
+ elf_phdata = (struct elf_phdr *)malloc(elf_ex.e_phentsize * elf_ex.e_phnum);
+ if (elf_phdata == NULL) {
+ return -ENOMEM;
+ }
+
+ retval = lseek(bprm->fd, elf_ex.e_phoff, SEEK_SET);
+ if (retval > 0) {
+ retval = read(bprm->fd, (char *)elf_phdata,
+ elf_ex.e_phentsize * elf_ex.e_phnum);
+ }
+
+ if (retval < 0) {
+ perror("load_elf_binary");
+ exit(-1);
+ }
+
+#ifdef BSWAP_NEEDED
+ elf_ppnt = elf_phdata;
+ for (i = 0; i < elf_ex.e_phnum; i++, elf_ppnt++) {
+ glue(bswap_phdr, SZ)(elf_ppnt);
+ }
+#endif
+ elf_ppnt = elf_phdata;
+
+ elf_bss = 0;
+ elf_brk = 0;
+
+
+ elf_stack = ~0UL;
+ elf_interpreter = NULL;
+ start_code = ~0UL;
+ end_code = 0;
+ end_data = 0;
+
+ for (i = 0; i < elf_ex.e_phnum; i++) {
+ if (elf_ppnt->p_type == PT_INTERP) {
+ if (elf_interpreter != NULL) {
+ free (elf_phdata);
+ free(elf_interpreter);
+ close(bprm->fd);
+ return -EINVAL;
+ }
+
+ /* This is the program interpreter used for
+ * shared libraries - for now assume that this
+ * is an a.out format binary
+ */
+ elf_interpreter = (char *)malloc(elf_ppnt->p_filesz);
+
+ if (elf_interpreter == NULL) {
+ free (elf_phdata);
+ close(bprm->fd);
+ return -ENOMEM;
+ }
+
+ retval = lseek(bprm->fd, elf_ppnt->p_offset, SEEK_SET);
+ if (retval >= 0) {
+ retval = read(bprm->fd, elf_interpreter, elf_ppnt->p_filesz);
+ }
+ if (retval < 0) {
+ perror("load_elf_binary2");
+ exit(-1);
+ }
+
+ /* If the program interpreter is one of these two,
+ then assume an iBCS2 image. Otherwise assume
+ a native linux image. */
+
+ /* JRP - Need to add X86 lib dir stuff here... */
+
+ if (strcmp(elf_interpreter, "/usr/lib/libc.so.1") == 0 ||
+ strcmp(elf_interpreter, "/usr/lib/ld.so.1") == 0) {
+ ibcs2_interpreter = 1;
+ }
+
+#if 0
+ printf("Using ELF interpreter %s\n", elf_interpreter);
+#endif
+ if (retval >= 0) {
+ retval = open(path(elf_interpreter), O_RDONLY);
+ if (retval >= 0) {
+ interpreter_fd = retval;
+ } else {
+ perror(elf_interpreter);
+ exit(-1);
+ }
+ }
+
+ if (retval >= 0) {
+ retval = lseek(interpreter_fd, 0, SEEK_SET);
+ if (retval >= 0) {
+ retval = read(interpreter_fd, bprm->buf, 128);
+ }
+ }
+ if (retval >= 0) {
+ interp_ex = *((struct exec *)bprm->buf); /* aout exec-header */
+ interp_elf_ex = *((struct elfhdr *)bprm->buf); /* elf exec-header */
+ }
+ if (retval < 0) {
+ perror("load_elf_binary3");
+ exit(-1);
+ }
+ }
+ elf_ppnt++;
+ }
+
+ /* Some simple consistency checks for the interpreter */
+ if (elf_interpreter) {
+ interpreter_type = INTERPRETER_ELF | INTERPRETER_AOUT;
+
+ /* Now figure out which format our binary is */
+ if ((N_MAGIC(interp_ex) != OMAGIC) && (N_MAGIC(interp_ex) != ZMAGIC) &&
+ (N_MAGIC(interp_ex) != QMAGIC)) {
+ interpreter_type = INTERPRETER_ELF;
+ }
+
+ if (interp_elf_ex.e_ident[0] != 0x7f ||
+ strncmp(&interp_elf_ex.e_ident[1], "ELF", 3) != 0) {
+ interpreter_type &= ~INTERPRETER_ELF;
+ }
+
+ if (!interpreter_type) {
+ free(elf_interpreter);
+ free(elf_phdata);
+ close(bprm->fd);
+ return -ELIBBAD;
+ }
+ }
+
+ /* OK, we are done with that, now set up the arg stuff,
+ and then start this sucker up */
+
+ {
+ char *passed_p;
+
+ if (interpreter_type == INTERPRETER_AOUT) {
+ snprintf(passed_fileno, sizeof(passed_fileno), "%d", bprm->fd);
+ passed_p = passed_fileno;
+
+ if (elf_interpreter) {
+ bprm->p = copy_elf_strings(1, &passed_p, bprm->page, bprm->p);
+ bprm->argc++;
+ }
+ }
+ if (!bprm->p) {
+ if (elf_interpreter) {
+ free(elf_interpreter);
+ }
+ free (elf_phdata);
+ close(bprm->fd);
+ return -E2BIG;
+ }
+ }
+
+ /* OK, This is the point of no return */
+ info->end_data = 0;
+ info->end_code = 0;
+ info->start_mmap = (unsigned long)ELF_START_MMAP;
+ info->mmap = 0;
+ elf_entry = (unsigned long) elf_ex.e_entry;
+
+ /* Do this so that we can load the interpreter, if need be. We will
+ change some of these later */
+ info->rss = 0;
+ bprm->p = setup_arg_pages(bprm->p, bprm, info);
+ info->start_stack = bprm->p;
+
+ /* Now we do a little grungy work by mmaping the ELF image into
+ * the correct location in memory. At this point, we assume that
+ * the image should be loaded at fixed address, not at a variable
+ * address.
+ */
+
+ for (i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
+ int elf_prot = 0;
+ int elf_flags = 0;
+ unsigned long error;
+
+ if (elf_ppnt->p_type != PT_LOAD)
+ continue;
+
+ if (elf_ppnt->p_flags & PF_R)
+ elf_prot |= PROT_READ;
+ if (elf_ppnt->p_flags & PF_W)
+ elf_prot |= PROT_WRITE;
+ if (elf_ppnt->p_flags & PF_X)
+ elf_prot |= PROT_EXEC;
+ elf_flags = MAP_PRIVATE | MAP_DENYWRITE;
+ if (elf_ex.e_type == ET_EXEC || load_addr_set) {
+ elf_flags |= MAP_FIXED;
+ } else if (elf_ex.e_type == ET_DYN) {
+ /* Try and get dynamic programs out of the way of the default mmap
+ base, as well as whatever program they might try to exec. This
+ is because the brk will follow the loader, and is not movable. */
+ /* NOTE: for qemu, we do a big mmap to get enough space
+ without hardcoding any address */
+ error = target_mmap(0, ET_DYN_MAP_SIZE,
+ PROT_NONE, MAP_PRIVATE | MAP_ANON,
+ -1, 0);
+ if (error == -1) {
+ perror("mmap");
+ exit(-1);
+ }
+ load_bias = TARGET_ELF_PAGESTART(error - elf_ppnt->p_vaddr);
+ }
+
+ error = target_mmap(TARGET_ELF_PAGESTART(load_bias + elf_ppnt->p_vaddr),
+ (elf_ppnt->p_filesz +
+ TARGET_ELF_PAGEOFFSET(elf_ppnt->p_vaddr)),
+ elf_prot,
+ (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE),
+ bprm->fd,
+ (elf_ppnt->p_offset -
+ TARGET_ELF_PAGEOFFSET(elf_ppnt->p_vaddr)));
+ if (error == -1) {
+ perror("mmap");
+ exit(-1);
+ }
+
+#ifdef LOW_ELF_STACK
+ if (TARGET_ELF_PAGESTART(elf_ppnt->p_vaddr) < elf_stack)
+ elf_stack = TARGET_ELF_PAGESTART(elf_ppnt->p_vaddr);
+#endif
+
+ if (!load_addr_set) {
+ load_addr_set = 1;
+ load_addr = elf_ppnt->p_vaddr - elf_ppnt->p_offset;
+ if (elf_ex.e_type == ET_DYN) {
+ load_bias += error -
+ TARGET_ELF_PAGESTART(load_bias + elf_ppnt->p_vaddr);
+ load_addr += load_bias;
+ reloc_func_desc = load_bias;
+ }
+ }
+ k = elf_ppnt->p_vaddr;
+ if (k < start_code)
+ start_code = k;
+ k = elf_ppnt->p_vaddr + elf_ppnt->p_filesz;
+ if (k > elf_bss)
+ elf_bss = k;
+ if ((elf_ppnt->p_flags & PF_X) && end_code < k)
+ end_code = k;
+ if (end_data < k)
+ end_data = k;
+ k = elf_ppnt->p_vaddr + elf_ppnt->p_memsz;
+ if (k > elf_brk)
+ elf_brk = k;
+ }
+
+ elf_entry += load_bias;
+ elf_bss += load_bias;
+ elf_brk += load_bias;
+ start_code += load_bias;
+ end_code += load_bias;
+ // start_data += load_bias;
+ end_data += load_bias;
+
+ if (elf_interpreter) {
+ if (interpreter_type & 1) {
+ elf_entry = load_aout_interp(&interp_ex, interpreter_fd);
+ }
+ else if (interpreter_type & 2) {
+ elf_entry = glue(load_elf_interp, SZ)(&interp_elf_ex, interpreter_fd,
+ &interp_load_addr);
+ }
+ reloc_func_desc = interp_load_addr;
+
+ close(interpreter_fd);
+ free(elf_interpreter);
+
+ if (elf_entry == ~0UL) {
+ printf("Unable to load interpreter\n");
+ free(elf_phdata);
+ exit(-1);
+ }
+ }
+
+ free(elf_phdata);
+
+ if (loglevel)
+ glue(load_symbols, SZ)(&elf_ex, bprm->fd);
+
+ if (interpreter_type != INTERPRETER_AOUT)
+ close(bprm->fd);
+ info->personality = (ibcs2_interpreter ? PER_SVR4 : PER_LINUX);
+
+#ifdef LOW_ELF_STACK
+ info->start_stack = bprm->p = elf_stack - 4;
+#endif
+ bprm->p = glue(create_elf_tables, SZ)(bprm->p,
+ bprm->argc,
+ bprm->envc,
+ &elf_ex,
+ load_addr, load_bias,
+ interp_load_addr,
+ (interpreter_type ==
+ INTERPRETER_AOUT ? 0 : 1),
+ info);
+ info->load_addr = reloc_func_desc;
+ info->start_brk = info->brk = elf_brk;
+ info->end_code = end_code;
+ info->start_code = start_code;
+ info->start_data = end_code;
+ info->end_data = end_data;
+ info->start_stack = bprm->p;
+
+ /* Calling set_brk effectively mmaps the pages that we need for the bss and break
+ sections */
+ set_brk(elf_bss, elf_brk);
+
+ padzero(elf_bss, elf_brk);
+
+#if 0
+ printf("(start_brk) %x\n" , info->start_brk);
+ printf("(end_code) %x\n" , info->end_code);
+ printf("(start_code) %x\n" , info->start_code);
+ printf("(end_data) %x\n" , info->end_data);
+ printf("(start_stack) %x\n" , info->start_stack);
+ printf("(brk) %x\n" , info->brk);
+#endif
+
+ if (info->personality == PER_SVR4) {
+ /* Why this, you ask??? Well SVr4 maps page 0 as read-only,
+ and some applications "depend" upon this behavior.
+ Since we do not have the power to recompile these, we
+ emulate the SVr4 behavior. Sigh. */
+ mapped_addr = target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC,
+ MAP_FIXED | MAP_PRIVATE, -1, 0);
+ }
+
+ info->entry = elf_entry;
+
+ return 0;
+}
Index: qemu/linux-user/main.c
===================================================================
--- qemu.orig/linux-user/main.c 2007-10-07 10:55:45.000000000 +0000
+++ qemu/linux-user/main.c 2007-10-07 10:55:54.000000000 +0000
@@ -564,6 +564,7 @@
case 0x88:
case 0x90:
#else
+ case 0x110:
case 0x16d:
#endif
ret = do_syscall (env, env->gregs[1],
Index: qemu/linux-user/qemu.h
===================================================================
--- qemu.orig/linux-user/qemu.h 2007-10-07 10:50:05.000000000 +0000
+++ qemu/linux-user/qemu.h 2007-10-07 10:51:09.000000000 +0000
@@ -33,6 +33,7 @@
target_ulong data_offset;
char **host_argv;
int personality;
+ int is_64bits;
};
#ifdef TARGET_I386
Index: qemu/linux-user/sparc64/syscall_nr.h
===================================================================
--- qemu.orig/linux-user/sparc64/syscall_nr.h 2007-10-07 11:01:06.000000000 +0000
+++ qemu/linux-user/sparc64/syscall_nr.h 2007-10-07 11:11:58.000000000 +0000
@@ -29,11 +29,11 @@
#define TARGET_NR_sigaltstack 28 /* Common */
#define TARGET_NR_pause 29 /* Is sigblock(0)->sigpause() in SunOS */
#define TARGET_NR_utime 30 /* Implemented via utimes() under SunOS */
-/* #define TARGET_NR_lchown32 31 Linux sparc32 specific */
-/* #define TARGET_NR_fchown32 32 Linux sparc32 specific */
+#define TARGET_NR_lchown32 31 /* Linux sparc32 specific */
+#define TARGET_NR_fchown32 32 /* Linux sparc32 specific */
#define TARGET_NR_access 33 /* Common */
#define TARGET_NR_nice 34 /* Implemented via get/setpriority() in SunOS */
-/* #define TARGET_NR_chown32 35 Linux sparc32 specific */
+#define TARGET_NR_chown32 35 /* Linux sparc32 specific */
#define TARGET_NR_sync 36 /* Common */
#define TARGET_NR_kill 37 /* Common */
#define TARGET_NR_stat 38 /* Common */
@@ -42,7 +42,7 @@
#define TARGET_NR_dup 41 /* Common */
#define TARGET_NR_pipe 42 /* Common */
#define TARGET_NR_times 43 /* Implemented via getrusage() in SunOS */
-/* #define TARGET_NR_getuid32 44 Linux sparc32 specific */
+#define TARGET_NR_getuid32 44 /* Linux sparc32 specific */
#define TARGET_NR_umount2 45 /* Linux Specific */
#define TARGET_NR_setgid 46 /* Implemented via setregid() in SunOS */
#define TARGET_NR_getgid 47 /* Common */
@@ -51,48 +51,48 @@
#define TARGET_NR_getegid 50 /* SunOS calls getgid() */
#define TARGET_NR_acct 51 /* Common */
#define TARGET_NR_memory_ordering 52 /* Linux Specific */
-/* #define TARGET_NR_getgid32 53 Linux sparc32 specific */
+#define TARGET_NR_getgid32 53 /* Linux sparc32 specific */
#define TARGET_NR_ioctl 54 /* Common */
#define TARGET_NR_reboot 55 /* Common */
-/* #define TARGET_NR_mmap2 56 Linux sparc32 Specific */
+#define TARGET_NR_mmap2 56 /* Linux sparc32 Specific */
#define TARGET_NR_symlink 57 /* Common */
#define TARGET_NR_readlink 58 /* Common */
#define TARGET_NR_execve 59 /* Common */
#define TARGET_NR_umask 60 /* Common */
#define TARGET_NR_chroot 61 /* Common */
#define TARGET_NR_fstat 62 /* Common */
-/* #define TARGET_NR_fstat64 63 Linux sparc32 Specific */
+#define TARGET_NR_fstat64 63 /* Linux sparc32 Specific */
#define TARGET_NR_getpagesize 64 /* Common */
#define TARGET_NR_msync 65 /* Common in newer 1.3.x revs... */
#define TARGET_NR_vfork 66 /* Common */
#define TARGET_NR_pread64 67 /* Linux Specific */
#define TARGET_NR_pwrite64 68 /* Linux Specific */
-/* #define TARGET_NR_geteuid32 69 Linux sparc32, sbrk under SunOS */
-/* #define TARGET_NR_getegid32 70 Linux sparc32, sstk under SunOS */
+#define TARGET_NR_geteuid32 69 /* Linux sparc32, sbrk under SunOS */
+#define TARGET_NR_getegid32 70 /* Linux sparc32, sstk under SunOS */
#define TARGET_NR_mmap 71 /* Common */
-/* #define TARGET_NR_setreuid32 72 Linux sparc32, vadvise under SunOS */
+#define TARGET_NR_setreuid32 72 /* Linux sparc32, vadvise under SunOS */
#define TARGET_NR_munmap 73 /* Common */
#define TARGET_NR_mprotect 74 /* Common */
#define TARGET_NR_madvise 75 /* Common */
#define TARGET_NR_vhangup 76 /* Common */
-/* #define TARGET_NR_truncate64 77 Linux sparc32 Specific */
+#define TARGET_NR_truncate64 77 /* Linux sparc32 Specific */
#define TARGET_NR_mincore 78 /* Common */
#define TARGET_NR_getgroups 79 /* Common */
#define TARGET_NR_setgroups 80 /* Common */
#define TARGET_NR_getpgrp 81 /* Common */
-/* #define TARGET_NR_setgroups32 82 Linux sparc32, setpgrp under SunOS */
+#define TARGET_NR_setgroups32 82 /* Linux sparc32, setpgrp under SunOS */
#define TARGET_NR_setitimer 83 /* Common */
-/* #define TARGET_NR_ftruncate64 84 Linux sparc32 Specific */
+#define TARGET_NR_ftruncate64 84 /* Linux sparc32 Specific */
#define TARGET_NR_swapon 85 /* Common */
#define TARGET_NR_getitimer 86 /* Common */
-/* #define TARGET_NR_setuid32 87 Linux sparc32, gethostname under SunOS */
+#define TARGET_NR_setuid32 87 /* Linux sparc32, gethostname under SunOS */
#define TARGET_NR_sethostname 88 /* Common */
-/* #define TARGET_NR_setgid32 89 Linux sparc32, getdtablesize under SunOS */
+#define TARGET_NR_setgid32 89 /* Linux sparc32, getdtablesize under SunOS */
#define TARGET_NR_dup2 90 /* Common */
-/* #define TARGET_NR_setfsuid32 91 Linux sparc32, getdopt under SunOS */
+#define TARGET_NR_setfsuid32 91 /* Linux sparc32, getdopt under SunOS */
#define TARGET_NR_fcntl 92 /* Common */
#define TARGET_NR_select 93 /* Common */
-/* #define TARGET_NR_setfsgid32 94 Linux sparc32, setdopt under SunOS */
+#define TARGET_NR_setfsgid32 94 /* Linux sparc32, setdopt under SunOS */
#define TARGET_NR_fsync 95 /* Common */
#define TARGET_NR_setpriority 96 /* Common */
#define TARGET_NR_socket 97 /* Common */
@@ -110,10 +110,10 @@
#define TARGET_NR_getresuid 109 /* Linux Specific, sigblock under SunOS */
#define TARGET_NR_setresgid 110 /* Linux Specific, sigsetmask under SunOS */
#define TARGET_NR_getresgid 111 /* Linux Specific, sigpause under SunOS */
-/* #define TARGET_NR_setregid32 75 Linux sparc32, sigstack under SunOS */
+/* #define TARGET_NR_setregid32 75 Linux sparc32, sigstack under SunOS */
#define TARGET_NR_recvmsg 113 /* Common */
#define TARGET_NR_sendmsg 114 /* Common */
-/* #define TARGET_NR_getgroups32 115 Linux sparc32, vtrace under SunOS */
+#define TARGET_NR_getgroups32 115 /* Linux sparc32, vtrace under SunOS */
#define TARGET_NR_gettimeofday 116 /* Common */
#define TARGET_NR_getrusage 117 /* Common */
#define TARGET_NR_getsockopt 118 /* Common */
@@ -130,14 +130,14 @@
#define TARGET_NR_truncate 129 /* Common */
#define TARGET_NR_ftruncate 130 /* Common */
#define TARGET_NR_flock 131 /* Common */
-/* #define TARGET_NR_lstat64 132 Linux sparc32 Specific */
+#define TARGET_NR_lstat64 132 /* Linux sparc32 Specific */
#define TARGET_NR_sendto 133 /* Common */
#define TARGET_NR_shutdown 134 /* Common */
#define TARGET_NR_socketpair 135 /* Common */
#define TARGET_NR_mkdir 136 /* Common */
#define TARGET_NR_rmdir 137 /* Common */
#define TARGET_NR_utimes 138 /* SunOS Specific */
-/* #define TARGET_NR_stat64 139 Linux sparc32 Specific */
+#define TARGET_NR_stat64 139 /* Linux sparc32 Specific */
#define TARGET_NR_sendfile64 140 /* adjtime under SunOS */
#define TARGET_NR_getpeername 141 /* Common */
#define TARGET_NR_futex 142 /* gethostid under SunOS */
@@ -153,7 +153,7 @@
/* #define TARGET_NR_putmsg 152 SunOS Specific */
#define TARGET_NR_poll 153 /* Common */
#define TARGET_NR_getdents64 154 /* Linux specific */
-/* #define TARGET_NR_fcntl64 155 Linux sparc32 Specific */
+#define TARGET_NR_fcntl64 155 /* Linux sparc32 Specific */
/* #define TARGET_NR_getdirentries 156 SunOS Specific */
#define TARGET_NR_statfs 157 /* Common */
#define TARGET_NR_fstatfs 158 /* Common */
@@ -229,9 +229,7 @@
#define TARGET_NR_setfsuid 228 /* Linux Specific */
#define TARGET_NR_setfsgid 229 /* Linux Specific */
#define TARGET_NR__newselect 230 /* Linux Specific */
-#ifdef __KERNEL__
-#define TARGET_NR_time 231 /* Linux sparc32 */
-#endif
+#define TARGET_NR_time 231 /* Linux sparc32 */
/* #define TARGET_NR_oldstat 232 Linux Specific */
#define TARGET_NR_stime 233 /* Linux Specific */
#define TARGET_NR_statfs64 234 /* Linux Specific */
next reply other threads:[~2007-10-07 12:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-07 12:45 Blue Swirl [this message]
2007-10-07 14:01 ` [Qemu-devel] [RFC, PATCH] Support for loading 32 bit ELF files for 64 bit linux-user J. Mayer
2007-10-07 14:38 ` Blue Swirl
2007-10-07 14:49 ` J. Mayer
2007-10-07 15:15 ` Blue Swirl
2007-10-07 15:46 ` J. Mayer
2007-10-07 16:21 ` Thiemo Seufer
2007-10-07 17:07 ` Blue Swirl
2007-10-07 17:35 ` J. Mayer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f43fc5580710070545x7f065e3ayef303218b3997b33@mail.gmail.com \
--to=blauwirbel@gmail.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).