From: ChenQi <Qi.Chen@windriver.com>
To: Fathi Boudra <fathi.boudra@linaro.org>,
<openembedded-core@lists.openembedded.org>
Subject: Re: [PATCH v2] libunwind: add aarch64 support
Date: Tue, 20 Sep 2016 10:12:13 +0800 [thread overview]
Message-ID: <57E09AFD.4040006@windriver.com> (raw)
In-Reply-To: <1411725589-20460-1-git-send-email-fathi.boudra@linaro.org>
On 09/26/2014 05:59 PM, Fathi Boudra wrote:
> * pass --enable-debug-frame on aarch64 architecture
Hi Fathi,
I'm now dealing with a problem related to libunwind support on aarch64.
Could you please tell me why '--enable-debug-frame' is needed for aarch64?
Best Regards,
Chen Qi
> * include patches:
> - aarch64 port (backported from upstream)
> - Support-building-with-older-compilers (fix undefined reference to
> `unreachable' on older compilers)
>
> Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
> ---
> .../libunwind/libunwind-1.1/AArch64-port.patch | 2529 ++++++++++++++++++++
> .../Support-building-with-older-compilers.patch | 72 +
> meta/recipes-support/libunwind/libunwind.inc | 1 +
> meta/recipes-support/libunwind/libunwind_1.1.bb | 5 +
> 4 files changed, 2607 insertions(+)
> create mode 100644 meta/recipes-support/libunwind/libunwind-1.1/AArch64-port.patch
> create mode 100644 meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch
>
> diff --git a/meta/recipes-support/libunwind/libunwind-1.1/AArch64-port.patch b/meta/recipes-support/libunwind/libunwind-1.1/AArch64-port.patch
> new file mode 100644
> index 0000000..228ec32
> --- /dev/null
> +++ b/meta/recipes-support/libunwind/libunwind-1.1/AArch64-port.patch
> @@ -0,0 +1,2529 @@
> +From ac6c0a6535975f1dc2da6e4e2766614baac2a14a Mon Sep 17 00:00:00 2001
> +From: Yvan Roux <yvan.roux@linaro.org>
> +Date: Sat, 11 May 2013 09:18:23 -0600
> +Subject: [PATCH] AArch64 port.
> +
> +Upstream-Status: Backport
> +
> +---
> + Makefile.am | 6
> + README | 1
> + configure.ac | 6
> + include/libunwind-aarch64.h | 187 ++++++++++++++++++++++
> + include/libunwind.h.in | 4
> + include/tdep-aarch64/dwarf-config.h | 52 ++++++
> + include/tdep-aarch64/jmpbuf.h | 33 +++
> + include/tdep-aarch64/libunwind_i.h | 294 +++++++++++++++++++++++++++++++++++
> + include/tdep/dwarf-config.h | 4
> + include/tdep/jmpbuf.h | 2
> + include/tdep/libunwind_i.h.in | 4
> + src/Makefile.am | 39 ++++
> + src/aarch64/Gcreate_addr_space.c | 60 +++++++
> + src/aarch64/Gget_proc_info.c | 39 ++++
> + src/aarch64/Gget_save_loc.c | 100 +++++++++++
> + src/aarch64/Gglobal.c | 57 ++++++
> + src/aarch64/Ginit.c | 187 ++++++++++++++++++++++
> + src/aarch64/Ginit_local.c | 55 ++++++
> + src/aarch64/Ginit_remote.c | 45 +++++
> + src/aarch64/Gis_signal_frame.c | 64 +++++++
> + src/aarch64/Gregs.c | 113 +++++++++++++
> + src/aarch64/Gresume.c | 177 +++++++++++++++++++++
> + src/aarch64/Gstep.c | 129 +++++++++++++++
> + src/aarch64/Lcreate_addr_space.c | 5
> + src/aarch64/Lget_proc_info.c | 5
> + src/aarch64/Lget_save_loc.c | 5
> + src/aarch64/Lglobal.c | 5
> + src/aarch64/Linit.c | 5
> + src/aarch64/Linit_local.c | 5
> + src/aarch64/Linit_remote.c | 5
> + src/aarch64/Lis_signal_frame.c | 5
> + src/aarch64/Lregs.c | 5
> + src/aarch64/Lresume.c | 5
> + src/aarch64/Lstep.c | 5
> + src/aarch64/gen-offsets.c | 68 ++++++++
> + src/aarch64/init.h | 127 +++++++++++++++
> + src/aarch64/is_fpreg.c | 32 +++
> + src/aarch64/offsets.h | 49 +++++
> + src/aarch64/regname.c | 106 ++++++++++++
> + src/aarch64/siglongjmp.S | 12 +
> + src/aarch64/unwind_i.h | 43 +++++
> + src/coredump/_UCD_access_reg_linux.c | 5
> + src/ptrace/_UPT_reg_offset.c | 36 ++++
> + 43 files changed, 2184 insertions(+), 7 deletions(-)
> + create mode 100644 include/libunwind-aarch64.h
> + create mode 100644 include/tdep-aarch64/dwarf-config.h
> + create mode 100644 include/tdep-aarch64/jmpbuf.h
> + create mode 100644 include/tdep-aarch64/libunwind_i.h
> + create mode 100644 src/aarch64/Gcreate_addr_space.c
> + create mode 100644 src/aarch64/Gget_proc_info.c
> + create mode 100644 src/aarch64/Gget_save_loc.c
> + create mode 100644 src/aarch64/Gglobal.c
> + create mode 100644 src/aarch64/Ginit.c
> + create mode 100644 src/aarch64/Ginit_local.c
> + create mode 100644 src/aarch64/Ginit_remote.c
> + create mode 100644 src/aarch64/Gis_signal_frame.c
> + create mode 100644 src/aarch64/Gregs.c
> + create mode 100644 src/aarch64/Gresume.c
> + create mode 100644 src/aarch64/Gstep.c
> + create mode 100644 src/aarch64/Lcreate_addr_space.c
> + create mode 100644 src/aarch64/Lget_proc_info.c
> + create mode 100644 src/aarch64/Lget_save_loc.c
> + create mode 100644 src/aarch64/Lglobal.c
> + create mode 100644 src/aarch64/Linit.c
> + create mode 100644 src/aarch64/Linit_local.c
> + create mode 100644 src/aarch64/Linit_remote.c
> + create mode 100644 src/aarch64/Lis_signal_frame.c
> + create mode 100644 src/aarch64/Lregs.c
> + create mode 100644 src/aarch64/Lresume.c
> + create mode 100644 src/aarch64/Lstep.c
> + create mode 100644 src/aarch64/gen-offsets.c
> + create mode 100644 src/aarch64/init.h
> + create mode 100644 src/aarch64/is_fpreg.c
> + create mode 100644 src/aarch64/offsets.h
> + create mode 100644 src/aarch64/regname.c
> + create mode 100644 src/aarch64/siglongjmp.S
> + create mode 100644 src/aarch64/unwind_i.h
> +
> +--- a/Makefile.am
> ++++ b/Makefile.am
> +@@ -2,6 +2,9 @@ include_HEADERS = include/libunwind-dyna
> + include/libunwind-ptrace.h \
> + include/libunwind-coredump.h
> +
> ++if ARCH_AARCH64
> ++include_HEADERS += include/libunwind-aarch64.h
> ++endif
> + if ARCH_ARM
> + include_HEADERS += include/libunwind-arm.h
> + endif
> +@@ -41,6 +44,9 @@ SUBDIRS = src tests doc
> + noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h \
> + include/compiler.h include/libunwind_i.h include/mempool.h \
> + include/remote.h \
> ++ include/tdep-aarch64/dwarf-config.h \
> ++ include/tdep-aarch64/jmpbuf.h \
> ++ include/tdep-aarch64/libunwind_i.h \
> + include/tdep-arm/dwarf-config.h include/tdep-arm/ex_tables.h \
> + include/tdep-arm/jmpbuf.h include/tdep-arm/libunwind_i.h \
> + include/tdep-ia64/jmpbuf.h include/tdep-ia64/rse.h \
> +--- a/README
> ++++ b/README
> +@@ -9,6 +9,7 @@ several architecture/operating-system co
> + Linux/IA-64: Fully tested and supported.
> + Linux/PARISC: Works well, but C library missing unwind-info.
> + HP-UX/IA-64: Mostly works but known to have some serious limitations.
> ++ Linux/AArch64: Newly added.
> + Linux/PPC64: Newly added.
> + Linux/SuperH: Newly added.
> + FreeBSD/i386: Newly added.
> +--- a/configure.ac
> ++++ b/configure.ac
> +@@ -104,7 +104,7 @@ SET_ARCH([$target_cpu],[target_arch])
> +
> + AC_ARG_ENABLE(coredump,
> + AS_HELP_STRING([--enable-coredump],[building libunwind-coredump library]),,
> +- [AS_CASE([$host_arch], [arm*|mips*|sh*|x86*], [enable_coredump=yes], [enable_coredump=no])]
> ++ [AS_CASE([$host_arch], [aarch64*|arm*|mips*|sh*|x86*], [enable_coredump=yes], [enable_coredump=no])]
> + )
> +
> + AC_MSG_CHECKING([if we should build libunwind-coredump])
> +@@ -121,6 +121,7 @@ AC_MSG_RESULT([$target_os])
> +
> + AM_CONDITIONAL(BUILD_COREDUMP, test x$enable_coredump = xyes)
> + AM_CONDITIONAL(REMOTE_ONLY, test x$target_arch != x$host_arch)
> ++AM_CONDITIONAL(ARCH_AARCH64, test x$target_arch = xaarch64)
> + AM_CONDITIONAL(ARCH_ARM, test x$target_arch = xarm)
> + AM_CONDITIONAL(ARCH_IA64, test x$target_arch = xia64)
> + AM_CONDITIONAL(ARCH_HPPA, test x$target_arch = xhppa)
> +@@ -137,7 +138,7 @@ AM_CONDITIONAL(OS_FREEBSD, expr x$target
> + AC_MSG_CHECKING([for ELF helper width])
> + case "${target_arch}" in
> + (arm|hppa|ppc32|x86|sh) use_elf32=yes; AC_MSG_RESULT([32]);;
> +-(ia64|ppc64|x86_64) use_elf64=yes; AC_MSG_RESULT([64]);;
> ++(aarch64|ia64|ppc64|x86_64) use_elf64=yes; AC_MSG_RESULT([64]);;
> + (mips) use_elfxx=yes; AC_MSG_RESULT([xx]);;
> + *) AC_MSG_ERROR([Unknown ELF target: ${target_arch}])
> + esac
> +@@ -186,6 +187,7 @@ AS_HELP_STRING([--enable-cxx-exceptions]
> + # C++ exception handling doesn't work too well on x86
> + case $target_arch in
> + x86*) enable_cxx_exceptions=no;;
> ++ aarch64*) enable_cxx_exceptions=no;;
> + arm*) enable_cxx_exceptions=no;;
> + mips*) enable_cxx_exceptions=no;;
> + *) enable_cxx_exceptions=yes;;
> +--- /dev/null
> ++++ b/include/libunwind-aarch64.h
> +@@ -0,0 +1,187 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2001-2004 Hewlett-Packard Co
> ++ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#ifndef LIBUNWIND_H
> ++#define LIBUNWIND_H
> ++
> ++#if defined(__cplusplus) || defined(c_plusplus)
> ++extern "C" {
> ++#endif
> ++
> ++#include <inttypes.h>
> ++#include <stddef.h>
> ++#include <ucontext.h>
> ++
> ++#define UNW_TARGET aarch64
> ++#define UNW_TARGET_AARCH64 1
> ++
> ++#define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */
> ++
> ++/* This needs to be big enough to accommodate "struct cursor", while
> ++ leaving some slack for future expansion. Changing this value will
> ++ require recompiling all users of this library. Stack allocation is
> ++ relatively cheap and unwind-state copying is relatively rare, so we
> ++ want to err on making it rather too big than too small. */
> ++
> ++#define UNW_TDEP_CURSOR_LEN 4096
> ++
> ++typedef uint64_t unw_word_t;
> ++typedef int64_t unw_sword_t;
> ++
> ++typedef long double unw_tdep_fpreg_t;
> ++
> ++typedef struct
> ++ {
> ++ /* no aarch64-specific auxiliary proc-info */
> ++ }
> ++unw_tdep_proc_info_t;
> ++
> ++typedef enum
> ++ {
> ++ /* 64-bit general registers. */
> ++ UNW_AARCH64_X0,
> ++ UNW_AARCH64_X1,
> ++ UNW_AARCH64_X2,
> ++ UNW_AARCH64_X3,
> ++ UNW_AARCH64_X4,
> ++ UNW_AARCH64_X5,
> ++ UNW_AARCH64_X6,
> ++ UNW_AARCH64_X7,
> ++ UNW_AARCH64_X8,
> ++
> ++ /* Temporary registers. */
> ++ UNW_AARCH64_X9,
> ++ UNW_AARCH64_X10,
> ++ UNW_AARCH64_X11,
> ++ UNW_AARCH64_X12,
> ++ UNW_AARCH64_X13,
> ++ UNW_AARCH64_X14,
> ++ UNW_AARCH64_X15,
> ++
> ++ /* Intra-procedure-call temporary registers. */
> ++ UNW_AARCH64_X16,
> ++ UNW_AARCH64_X17,
> ++
> ++ /* Callee-saved registers. */
> ++ UNW_AARCH64_X18,
> ++ UNW_AARCH64_X19,
> ++ UNW_AARCH64_X20,
> ++ UNW_AARCH64_X21,
> ++ UNW_AARCH64_X22,
> ++ UNW_AARCH64_X23,
> ++ UNW_AARCH64_X24,
> ++ UNW_AARCH64_X25,
> ++ UNW_AARCH64_X26,
> ++ UNW_AARCH64_X27,
> ++ UNW_AARCH64_X28,
> ++
> ++ /* 64-bit frame pointer. */
> ++ UNW_AARCH64_X29,
> ++
> ++ /* 64-bit link register. */
> ++ UNW_AARCH64_X30,
> ++
> ++ /* 64-bit stack pointer. */
> ++ UNW_AARCH64_SP = 31,
> ++ UNW_AARCH64_PC,
> ++ UNW_AARCH64_PSTATE,
> ++
> ++ /* 128-bit FP/Advanced SIMD registers. */
> ++ UNW_AARCH64_V0 = 64,
> ++ UNW_AARCH64_V1,
> ++ UNW_AARCH64_V2,
> ++ UNW_AARCH64_V3,
> ++ UNW_AARCH64_V4,
> ++ UNW_AARCH64_V5,
> ++ UNW_AARCH64_V6,
> ++ UNW_AARCH64_V7,
> ++ UNW_AARCH64_V8,
> ++ UNW_AARCH64_V9,
> ++ UNW_AARCH64_V10,
> ++ UNW_AARCH64_V11,
> ++ UNW_AARCH64_V12,
> ++ UNW_AARCH64_V13,
> ++ UNW_AARCH64_V14,
> ++ UNW_AARCH64_V15,
> ++ UNW_AARCH64_V16,
> ++ UNW_AARCH64_V17,
> ++ UNW_AARCH64_V18,
> ++ UNW_AARCH64_V19,
> ++ UNW_AARCH64_V20,
> ++ UNW_AARCH64_V21,
> ++ UNW_AARCH64_V22,
> ++ UNW_AARCH64_V23,
> ++ UNW_AARCH64_V24,
> ++ UNW_AARCH64_V25,
> ++ UNW_AARCH64_V26,
> ++ UNW_AARCH64_V27,
> ++ UNW_AARCH64_V28,
> ++ UNW_AARCH64_V29,
> ++ UNW_AARCH64_V30,
> ++ UNW_AARCH64_V31,
> ++
> ++ UNW_AARCH64_FPSR,
> ++ UNW_AARCH64_FPCR,
> ++
> ++ /* For AArch64, the CFA is the value of SP (x31) at the call site of the
> ++ previous frame. */
> ++ UNW_AARCH64_CFA = UNW_AARCH64_SP,
> ++
> ++ UNW_TDEP_LAST_REG = UNW_AARCH64_FPCR,
> ++
> ++ UNW_TDEP_IP = UNW_AARCH64_X30,
> ++ UNW_TDEP_SP = UNW_AARCH64_SP,
> ++ UNW_TDEP_EH = UNW_AARCH64_X0,
> ++
> ++ }
> ++aarch64_regnum_t;
> ++
> ++/* Use R0 through R3 to pass exception handling information. */
> ++#define UNW_TDEP_NUM_EH_REGS 4
> ++
> ++typedef struct unw_tdep_save_loc
> ++ {
> ++ /* Additional target-dependent info on a save location. */
> ++ }
> ++unw_tdep_save_loc_t;
> ++
> ++
> ++/* On AArch64, we can directly use ucontext_t as the unwind context. */
> ++typedef ucontext_t unw_tdep_context_t;
> ++
> ++#include "libunwind-common.h"
> ++#include "libunwind-dynamic.h"
> ++
> ++#define unw_tdep_getcontext(uc) (getcontext (uc), 0)
> ++#define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg)
> ++
> ++extern int unw_tdep_is_fpreg (int);
> ++
> ++#if defined(__cplusplus) || defined(c_plusplus)
> ++}
> ++#endif
> ++
> ++#endif /* LIBUNWIND_H */
> +--- a/include/libunwind.h.in
> ++++ b/include/libunwind.h.in
> +@@ -3,7 +3,9 @@
> +
> + #ifndef UNW_REMOTE_ONLY
> +
> +-#if defined __arm__
> ++#if defined __aarch64__
> ++#include "libunwind-aarch64.h"
> ++#elif defined __arm__
> + # include "libunwind-arm.h"
> + #elif defined __hppa__
> + # include "libunwind-hppa.h"
> +--- /dev/null
> ++++ b/include/tdep-aarch64/dwarf-config.h
> +@@ -0,0 +1,52 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#ifndef dwarf_config_h
> ++#define dwarf_config_h
> ++
> ++/* This matches the value udes by GCC (see
> ++ gcc/config/aarch64/aarch64.h:DWARF_FRAME_REGISTERS. */
> ++#define DWARF_NUM_PRESERVED_REGS 97
> ++
> ++/* Return TRUE if the ADDR_SPACE uses big-endian byte-order. */
> ++#define dwarf_is_big_endian(addr_space) 0
> ++
> ++#define dwarf_to_unw_regnum(reg) (((reg) <= UNW_AARCH64_V31) ? (reg) : 0)
> ++
> ++/* Convert a pointer to a dwarf_cursor structure to a pointer to
> ++ unw_cursor_t. */
> ++#define dwarf_to_cursor(c) ((unw_cursor_t *) (c))
> ++
> ++typedef struct dwarf_loc
> ++ {
> ++ unw_word_t val;
> ++#ifndef UNW_LOCAL_ONLY
> ++ unw_word_t type; /* see DWARF_LOC_TYPE_* macros. */
> ++#endif
> ++ }
> ++dwarf_loc_t;
> ++
> ++#endif /* dwarf_config_h */
> +--- /dev/null
> ++++ b/include/tdep-aarch64/jmpbuf.h
> +@@ -0,0 +1,33 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++/* Use glibc's jump-buffer indices; NPTL peeks at SP: */
> ++
> ++/* FIXME for AArch64 */
> ++
> ++#define JB_SP 13
> ++#define JB_RP 14
> ++#define JB_MASK_SAVED 15
> ++#define JB_MASK 16
> +--- /dev/null
> ++++ b/include/tdep-aarch64/libunwind_i.h
> +@@ -0,0 +1,294 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2001-2005 Hewlett-Packard Co
> ++ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#ifndef AARCH64_LIBUNWIND_I_H
> ++#define AARCH64_LIBUNWIND_I_H
> ++
> ++/* Target-dependent definitions that are internal to libunwind but need
> ++ to be shared with target-independent code. */
> ++
> ++#include <stdlib.h>
> ++#include <libunwind.h>
> ++
> ++#include "elf64.h"
> ++#include "mempool.h"
> ++#include "dwarf.h"
> ++
> ++typedef struct
> ++ {
> ++ /* no aarch64-specific fast trace */
> ++ }
> ++unw_tdep_frame_t;
> ++
> ++#ifdef UNW_LOCAL_ONLY
> ++
> ++typedef unw_word_t aarch64_loc_t;
> ++
> ++#else /* !UNW_LOCAL_ONLY */
> ++
> ++typedef struct aarch64_loc
> ++ {
> ++ unw_word_t w0, w1;
> ++ }
> ++aarch64_loc_t;
> ++
> ++#endif /* !UNW_LOCAL_ONLY */
> ++
> ++struct unw_addr_space
> ++ {
> ++ struct unw_accessors acc;
> ++ int big_endian;
> ++ unw_caching_policy_t caching_policy;
> ++#ifdef HAVE_ATOMIC_OPS_H
> ++ AO_t cache_generation;
> ++#else
> ++ uint32_t cache_generation;
> ++#endif
> ++ unw_word_t dyn_generation; /* see dyn-common.h */
> ++ unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */
> ++ struct dwarf_rs_cache global_cache;
> ++ struct unw_debug_frame_list *debug_frames;
> ++ };
> ++
> ++struct cursor
> ++ {
> ++ struct dwarf_cursor dwarf; /* must be first */
> ++ enum
> ++ {
> ++ AARCH64_SCF_NONE,
> ++ AARCH64_SCF_LINUX_RT_SIGFRAME,
> ++ }
> ++ sigcontext_format;
> ++ unw_word_t sigcontext_addr;
> ++ unw_word_t sigcontext_sp;
> ++ unw_word_t sigcontext_pc;
> ++ };
> ++
> ++#define DWARF_GET_LOC(l) ((l).val)
> ++
> ++#ifdef UNW_LOCAL_ONLY
> ++# define DWARF_NULL_LOC DWARF_LOC (0, 0)
> ++# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0)
> ++# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) })
> ++# define DWARF_IS_REG_LOC(l) 0
> ++# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \
> ++ tdep_uc_addr((c)->as_arg, (r)), 0))
> ++# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
> ++# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \
> ++ tdep_uc_addr((c)->as_arg, (r)), 0))
> ++
> ++static inline int
> ++dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val)
> ++{
> ++ if (!DWARF_GET_LOC (loc))
> ++ return -1;
> ++ *val = *(unw_fpreg_t *) DWARF_GET_LOC (loc);
> ++ return 0;
> ++}
> ++
> ++static inline int
> ++dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
> ++{
> ++ if (!DWARF_GET_LOC (loc))
> ++ return -1;
> ++ *(unw_fpreg_t *) DWARF_GET_LOC (loc) = val;
> ++ return 0;
> ++}
> ++
> ++static inline int
> ++dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val)
> ++{
> ++ if (!DWARF_GET_LOC (loc))
> ++ return -1;
> ++ *val = *(unw_word_t *) DWARF_GET_LOC (loc);
> ++ return 0;
> ++}
> ++
> ++static inline int
> ++dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val)
> ++{
> ++ if (!DWARF_GET_LOC (loc))
> ++ return -1;
> ++ *(unw_word_t *) DWARF_GET_LOC (loc) = val;
> ++ return 0;
> ++}
> ++
> ++#else /* !UNW_LOCAL_ONLY */
> ++# define DWARF_LOC_TYPE_FP (1 << 0)
> ++# define DWARF_LOC_TYPE_REG (1 << 1)
> ++# define DWARF_NULL_LOC DWARF_LOC (0, 0)
> ++# define DWARF_IS_NULL_LOC(l) \
> ++ ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; })
> ++# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) })
> ++# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0)
> ++# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0)
> ++# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG)
> ++# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
> ++# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \
> ++ | DWARF_LOC_TYPE_FP))
> ++
> ++static inline int
> ++dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val)
> ++{
> ++ char *valp = (char *) &val;
> ++ unw_word_t addr;
> ++ int ret;
> ++
> ++ if (DWARF_IS_NULL_LOC (loc))
> ++ return -UNW_EBADREG;
> ++
> ++ if (DWARF_IS_REG_LOC (loc))
> ++ return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
> ++ val, 0, c->as_arg);
> ++
> ++ addr = DWARF_GET_LOC (loc);
> ++ if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp,
> ++ 0, c->as_arg)) < 0)
> ++ return ret;
> ++
> ++ return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 0,
> ++ c->as_arg);
> ++}
> ++
> ++static inline int
> ++dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
> ++{
> ++ char *valp = (char *) &val;
> ++ unw_word_t addr;
> ++ int ret;
> ++
> ++ if (DWARF_IS_NULL_LOC (loc))
> ++ return -UNW_EBADREG;
> ++
> ++ if (DWARF_IS_REG_LOC (loc))
> ++ return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
> ++ &val, 1, c->as_arg);
> ++
> ++ addr = DWARF_GET_LOC (loc);
> ++ if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp,
> ++ 1, c->as_arg)) < 0)
> ++ return ret;
> ++
> ++ return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1,
> ++ 1, c->as_arg);
> ++}
> ++
> ++static inline int
> ++dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val)
> ++{
> ++ if (DWARF_IS_NULL_LOC (loc))
> ++ return -UNW_EBADREG;
> ++
> ++ /* If a code-generator were to save a value of type unw_word_t in a
> ++ floating-point register, we would have to support this case. I
> ++ suppose it could happen with MMX registers, but does it really
> ++ happen? */
> ++ assert (!DWARF_IS_FP_LOC (loc));
> ++
> ++ if (DWARF_IS_REG_LOC (loc))
> ++ return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val,
> ++ 0, c->as_arg);
> ++ else
> ++ return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val,
> ++ 0, c->as_arg);
> ++}
> ++
> ++static inline int
> ++dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val)
> ++{
> ++ if (DWARF_IS_NULL_LOC (loc))
> ++ return -UNW_EBADREG;
> ++
> ++ /* If a code-generator were to save a value of type unw_word_t in a
> ++ floating-point register, we would have to support this case. I
> ++ suppose it could happen with MMX registers, but does it really
> ++ happen? */
> ++ assert (!DWARF_IS_FP_LOC (loc));
> ++
> ++ if (DWARF_IS_REG_LOC (loc))
> ++ return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val,
> ++ 1, c->as_arg);
> ++ else
> ++ return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val,
> ++ 1, c->as_arg);
> ++}
> ++
> ++#endif /* !UNW_LOCAL_ONLY */
> ++
> ++
> ++
> ++#define tdep_getcontext_trace unw_getcontext
> ++#define tdep_init_done UNW_OBJ(init_done)
> ++#define tdep_init UNW_OBJ(init)
> ++/* Platforms that support UNW_INFO_FORMAT_TABLE need to define
> ++ tdep_search_unwind_table. */
> ++#define tdep_search_unwind_table dwarf_search_unwind_table
> ++#define tdep_find_unwind_table dwarf_find_unwind_table
> ++#define tdep_uc_addr UNW_OBJ(uc_addr)
> ++#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image)
> ++#define tdep_access_reg UNW_OBJ(access_reg)
> ++#define tdep_access_fpreg UNW_OBJ(access_fpreg)
> ++#define tdep_fetch_frame(c,ip,n) do {} while(0)
> ++#define tdep_cache_frame(c,rs) do {} while(0)
> ++#define tdep_reuse_frame(c,rs) do {} while(0)
> ++#define tdep_stash_frame(c,rs) do {} while(0)
> ++#define tdep_trace(cur,addr,n) (-UNW_ENOINFO)
> ++
> ++#ifdef UNW_LOCAL_ONLY
> ++# define tdep_find_proc_info(c,ip,n) \
> ++ dwarf_find_proc_info((c)->as, (ip), &(c)->pi, (n), \
> ++ (c)->as_arg)
> ++# define tdep_put_unwind_info(as,pi,arg) \
> ++ dwarf_put_unwind_info((as), (pi), (arg))
> ++#else
> ++# define tdep_find_proc_info(c,ip,n) \
> ++ (*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \
> ++ (c)->as_arg)
> ++# define tdep_put_unwind_info(as,pi,arg) \
> ++ (*(as)->acc.put_unwind_info)((as), (pi), (arg))
> ++#endif
> ++
> ++#define tdep_get_as(c) ((c)->dwarf.as)
> ++#define tdep_get_as_arg(c) ((c)->dwarf.as_arg)
> ++#define tdep_get_ip(c) ((c)->dwarf.ip)
> ++#define tdep_big_endian(as) ((as)->big_endian)
> ++
> ++extern int tdep_init_done;
> ++
> ++extern void tdep_init (void);
> ++extern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip,
> ++ unw_dyn_info_t *di, unw_proc_info_t *pi,
> ++ int need_unwind_info, void *arg);
> ++extern void *tdep_uc_addr (unw_tdep_context_t *uc, int reg);
> ++extern int tdep_get_elf_image (struct elf_image *ei, pid_t pid, unw_word_t ip,
> ++ unsigned long *segbase, unsigned long *mapoff,
> ++ char *path, size_t pathlen);
> ++extern int tdep_access_reg (struct cursor *c, unw_regnum_t reg,
> ++ unw_word_t *valp, int write);
> ++extern int tdep_access_fpreg (struct cursor *c, unw_regnum_t reg,
> ++ unw_fpreg_t *valp, int write);
> ++
> ++#endif /* AARCH64_LIBUNWIND_I_H */
> +--- a/include/tdep/dwarf-config.h
> ++++ b/include/tdep/dwarf-config.h
> +@@ -1,7 +1,9 @@
> + /* Provide a real file - not a symlink - as it would cause multiarch conflicts
> + when multiple different arch releases are installed simultaneously. */
> +
> +-#if defined __arm__
> ++#if defined __aarch64__
> ++# include "tdep-aarch64/dwarf-config.h"
> ++#elif defined __arm__
> + # include "tdep-arm/dwarf-config.h"
> + #elif defined __hppa__
> + # include "tdep-hppa/dwarf-config.h"
> +--- a/include/tdep/jmpbuf.h
> ++++ b/include/tdep/jmpbuf.h
> +@@ -3,6 +3,8 @@
> +
> + #ifndef UNW_REMOTE_ONLY
> +
> ++#if defined __aarch64__
> ++# include "tdep-aarch64/jmpbuf.h"
> + #if defined __arm__
> + # include "tdep-arm/jmpbuf.h"
> + #elif defined __hppa__
> +--- a/include/tdep/libunwind_i.h.in
> ++++ b/include/tdep/libunwind_i.h.in
> +@@ -3,7 +3,9 @@
> +
> + #ifndef UNW_REMOTE_ONLY
> +
> +-#if defined __arm__
> ++#if defined __aarch64__
> ++# include "tdep-aarch64/libunwind_i.h"
> ++#elif defined __arm__
> + # include "tdep-arm/libunwind_i.h"
> + #elif defined __hppa__
> + # include "tdep-hppa/libunwind_i.h"
> +--- a/src/Makefile.am
> ++++ b/src/Makefile.am
> +@@ -170,6 +170,28 @@ libunwind_elfxx_la_SOURCES = elfxx.c
> + noinst_LTLIBRARIES += $(LIBUNWIND_ELF)
> + libunwind_la_LIBADD += $(LIBUNWIND_ELF)
> +
> ++# The list of files that go into libunwind and libunwind-aarch64:
> ++noinst_HEADERS += aarch64/init.h aarch64/offsets.h aarch64/unwind_i.h
> ++libunwind_la_SOURCES_aarch64_common = $(libunwind_la_SOURCES_common) \
> ++ aarch64/is_fpreg.c aarch64/regname.c
> ++
> ++# The list of files that go into libunwind:
> ++libunwind_la_SOURCES_aarch64 = $(libunwind_la_SOURCES_aarch64_common) \
> ++ $(libunwind_la_SOURCES_local) \
> ++ aarch64/Lcreate_addr_space.c aarch64/Lget_proc_info.c \
> ++ aarch64/Lget_save_loc.c aarch64/Lglobal.c aarch64/Linit.c \
> ++ aarch64/Linit_local.c aarch64/Linit_remote.c \
> ++ aarch64/Lis_signal_frame.c aarch64/Lregs.c aarch64/Lresume.c \
> ++ aarch64/Lstep.c
> ++
> ++libunwind_aarch64_la_SOURCES_aarch64 = $(libunwind_la_SOURCES_aarch64_common) \
> ++ $(libunwind_la_SOURCES_generic) \
> ++ aarch64/Gcreate_addr_space.c aarch64/Gget_proc_info.c \
> ++ aarch64/Gget_save_loc.c aarch64/Gglobal.c aarch64/Ginit.c \
> ++ aarch64/Ginit_local.c aarch64/Ginit_remote.c \
> ++ aarch64/Gis_signal_frame.c aarch64/Gregs.c aarch64/Gresume.c \
> ++ aarch64/Gstep.c
> ++
> + # The list of files that go into libunwind and libunwind-arm:
> + noinst_HEADERS += arm/init.h arm/offsets.h arm/unwind_i.h
> + libunwind_la_SOURCES_arm_common = $(libunwind_la_SOURCES_common) \
> +@@ -418,6 +440,18 @@ if OS_FREEBSD
> + libunwind_coredump_la_SOURCES += coredump/_UCD_access_reg_freebsd.c
> + endif
> +
> ++if ARCH_AARCH64
> ++ lib_LTLIBRARIES += libunwind-aarch64.la
> ++ libunwind_la_SOURCES = $(libunwind_la_SOURCES_aarch64)
> ++ libunwind_aarch64_la_SOURCES = $(libunwind_aarch64_la_SOURCES_aarch64)
> ++ libunwind_aarch64_la_LDFLAGS = $(COMMON_SO_LDFLAGS) -version-info $(SOVERSION)
> ++ libunwind_aarch64_la_LIBADD = libunwind-dwarf-generic.la
> ++ libunwind_aarch64_la_LIBADD += libunwind-elf64.la
> ++if !REMOTE_ONLY
> ++ libunwind_aarch64_la_LIBADD += libunwind.la -lc
> ++endif
> ++ libunwind_setjmp_la_SOURCES += aarch64/siglongjmp.S
> ++else
> + if ARCH_ARM
> + lib_LTLIBRARIES += libunwind-arm.la
> + libunwind_la_SOURCES = $(libunwind_la_SOURCES_arm)
> +@@ -545,6 +579,7 @@ endif # ARCH_MIPS
> + endif # ARCH_HPPA
> + endif # ARCH_IA64
> + endif # ARCH_ARM
> ++endif # ARCH_AARCH64
> +
> + # libunwind-setjmp depends on libunwind-$(arch). Therefore must be added
> + # at the end.
> +@@ -567,7 +602,8 @@ AM_CPPFLAGS = -I$(top_srcdir)/include -I
> + AM_CCASFLAGS = $(AM_CPPFLAGS)
> + noinst_HEADERS += unwind/unwind-internal.h
> +
> +-EXTRA_DIST = $(libunwind_la_SOURCES_arm) \
> ++EXTRA_DIST = $(libunwind_la_SOURCES_aarch64) \
> ++ $(libunwind_la_SOURCES_arm) \
> + $(libunwind_la_SOURCES_hppa) \
> + $(libunwind_la_SOURCES_ia64) \
> + $(libunwind_la_SOURCES_mips) \
> +@@ -579,6 +615,7 @@ EXTRA_DIST = $(libunwind_la_SOURCES_arm)
> + $(libunwind_la_SOURCES_common) \
> + $(libunwind_la_SOURCES_local) \
> + $(libunwind_la_SOURCES_generic) \
> ++ $(libunwind_aarch64_la_SOURCES_aarch64) \
> + $(libunwind_arm_la_SOURCES_arm) \
> + $(libunwind_hppa_la_SOURCES_hppa) \
> + $(libunwind_ia64_la_SOURCES_ia64) \
> +--- /dev/null
> ++++ b/src/aarch64/Gcreate_addr_space.c
> +@@ -0,0 +1,60 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include <string.h>
> ++#include <stdlib.h>
> ++
> ++#include "unwind_i.h"
> ++
> ++PROTECTED unw_addr_space_t
> ++unw_create_addr_space (unw_accessors_t *a, int byte_order)
> ++{
> ++#ifdef UNW_LOCAL_ONLY
> ++ return NULL;
> ++#else
> ++ unw_addr_space_t as;
> ++
> ++ /* AArch64 supports little-endian and big-endian. */
> ++ if (byte_order != 0 && byte_order != __LITTLE_ENDIAN
> ++ && byte_order != __BIG_ENDIAN)
> ++ return NULL;
> ++
> ++ as = malloc (sizeof (*as));
> ++ if (!as)
> ++ return NULL;
> ++
> ++ memset (as, 0, sizeof (*as));
> ++
> ++ as->acc = *a;
> ++
> ++ /* Default to little-endian for AArch64. */
> ++ if (byte_order == 0 || byte_order == __LITTLE_ENDIAN)
> ++ as->big_endian = 0;
> ++ else
> ++ as->big_endian = 1;
> ++
> ++ return as;
> ++#endif
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gget_proc_info.c
> +@@ -0,0 +1,39 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++
> ++PROTECTED int
> ++unw_get_proc_info (unw_cursor_t *cursor, unw_proc_info_t *pi)
> ++{
> ++ struct cursor *c = (struct cursor *) cursor;
> ++ int ret;
> ++
> ++ ret = dwarf_make_proc_info (&c->dwarf);
> ++ if (ret < 0)
> ++ return ret;
> ++
> ++ *pi = c->dwarf.pi;
> ++ return 0;
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gget_save_loc.c
> +@@ -0,0 +1,100 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++
> ++PROTECTED int
> ++unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc)
> ++{
> ++ struct cursor *c = (struct cursor *) cursor;
> ++ dwarf_loc_t loc;
> ++
> ++ switch (reg)
> ++ {
> ++ case UNW_AARCH64_X0:
> ++ case UNW_AARCH64_X1:
> ++ case UNW_AARCH64_X2:
> ++ case UNW_AARCH64_X3:
> ++ case UNW_AARCH64_X4:
> ++ case UNW_AARCH64_X5:
> ++ case UNW_AARCH64_X6:
> ++ case UNW_AARCH64_X7:
> ++ case UNW_AARCH64_X8:
> ++ case UNW_AARCH64_X9:
> ++ case UNW_AARCH64_X10:
> ++ case UNW_AARCH64_X11:
> ++ case UNW_AARCH64_X12:
> ++ case UNW_AARCH64_X13:
> ++ case UNW_AARCH64_X14:
> ++ case UNW_AARCH64_X15:
> ++ case UNW_AARCH64_X16:
> ++ case UNW_AARCH64_X17:
> ++ case UNW_AARCH64_X18:
> ++ case UNW_AARCH64_X19:
> ++ case UNW_AARCH64_X20:
> ++ case UNW_AARCH64_X21:
> ++ case UNW_AARCH64_X22:
> ++ case UNW_AARCH64_X23:
> ++ case UNW_AARCH64_X24:
> ++ case UNW_AARCH64_X25:
> ++ case UNW_AARCH64_X26:
> ++ case UNW_AARCH64_X27:
> ++ case UNW_AARCH64_X28:
> ++ case UNW_AARCH64_X29:
> ++ case UNW_AARCH64_X30:
> ++ case UNW_AARCH64_SP:
> ++ case UNW_AARCH64_PC:
> ++ case UNW_AARCH64_PSTATE:
> ++ loc = c->dwarf.loc[reg];
> ++ break;
> ++
> ++ default:
> ++ loc = DWARF_NULL_LOC; /* default to "not saved" */
> ++ break;
> ++ }
> ++
> ++ memset (sloc, 0, sizeof (*sloc));
> ++
> ++ if (DWARF_IS_NULL_LOC (loc))
> ++ {
> ++ sloc->type = UNW_SLT_NONE;
> ++ return 0;
> ++ }
> ++
> ++#if !defined(UNW_LOCAL_ONLY)
> ++ if (DWARF_IS_REG_LOC (loc))
> ++ {
> ++ sloc->type = UNW_SLT_REG;
> ++ sloc->u.regnum = DWARF_GET_LOC (loc);
> ++ }
> ++ else
> ++#endif
> ++ {
> ++ sloc->type = UNW_SLT_MEMORY;
> ++ sloc->u.addr = DWARF_GET_LOC (loc);
> ++ }
> ++ return 0;
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gglobal.c
> +@@ -0,0 +1,57 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++#include "dwarf_i.h"
> ++
> ++HIDDEN define_lock (aarch64_lock);
> ++HIDDEN int tdep_init_done;
> ++
> ++HIDDEN void
> ++tdep_init (void)
> ++{
> ++ intrmask_t saved_mask;
> ++
> ++ sigfillset (&unwi_full_mask);
> ++
> ++ lock_acquire (&aarch64_lock, saved_mask);
> ++ {
> ++ if (tdep_init_done)
> ++ /* another thread else beat us to it... */
> ++ goto out;
> ++
> ++ mi_init ();
> ++
> ++ dwarf_init ();
> ++
> ++#ifndef UNW_REMOTE_ONLY
> ++ aarch64_local_addr_space_init ();
> ++#endif
> ++ tdep_init_done = 1; /* signal that we're initialized... */
> ++ }
> ++ out:
> ++ lock_release (&aarch64_lock, saved_mask);
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Ginit.c
> +@@ -0,0 +1,187 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include <stdlib.h>
> ++#include <string.h>
> ++
> ++#include "unwind_i.h"
> ++
> ++#ifdef UNW_REMOTE_ONLY
> ++
> ++/* unw_local_addr_space is a NULL pointer in this case. */
> ++PROTECTED unw_addr_space_t unw_local_addr_space;
> ++
> ++#else /* !UNW_REMOTE_ONLY */
> ++
> ++static struct unw_addr_space local_addr_space;
> ++
> ++PROTECTED unw_addr_space_t unw_local_addr_space = &local_addr_space;
> ++
> ++static inline void *
> ++uc_addr (ucontext_t *uc, int reg)
> ++{
> ++ if (reg >= UNW_AARCH64_X0 && reg <= UNW_AARCH64_V31)
> ++ return &uc->uc_mcontext.regs[reg];
> ++ else
> ++ return NULL;
> ++}
> ++
> ++# ifdef UNW_LOCAL_ONLY
> ++
> ++HIDDEN void *
> ++tdep_uc_addr (ucontext_t *uc, int reg)
> ++{
> ++ return uc_addr (uc, reg);
> ++}
> ++
> ++# endif /* UNW_LOCAL_ONLY */
> ++
> ++HIDDEN unw_dyn_info_list_t _U_dyn_info_list;
> ++
> ++/* XXX fix me: there is currently no way to locate the dyn-info list
> ++ by a remote unwinder. On ia64, this is done via a special
> ++ unwind-table entry. Perhaps something similar can be done with
> ++ DWARF2 unwind info. */
> ++
> ++static void
> ++put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg)
> ++{
> ++ /* it's a no-op */
> ++}
> ++
> ++static int
> ++get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr,
> ++ void *arg)
> ++{
> ++ *dyn_info_list_addr = (unw_word_t) &_U_dyn_info_list;
> ++ return 0;
> ++}
> ++
> ++static int
> ++access_mem (unw_addr_space_t as, unw_word_t addr, unw_word_t *val, int write,
> ++ void *arg)
> ++{
> ++ if (write)
> ++ {
> ++ Debug (16, "mem[%lx] <- %lx\n", addr, *val);
> ++ *(unw_word_t *) addr = *val;
> ++ }
> ++ else
> ++ {
> ++ *val = *(unw_word_t *) addr;
> ++ Debug (16, "mem[%lx] -> %lx\n", addr, *val);
> ++ }
> ++ return 0;
> ++}
> ++
> ++static int
> ++access_reg (unw_addr_space_t as, unw_regnum_t reg, unw_word_t *val, int write,
> ++ void *arg)
> ++{
> ++ unw_word_t *addr;
> ++ ucontext_t *uc = arg;
> ++
> ++ if (unw_is_fpreg (reg))
> ++ goto badreg;
> ++
> ++ if (!(addr = uc_addr (uc, reg)))
> ++ goto badreg;
> ++
> ++ if (write)
> ++ {
> ++ *(unw_word_t *) addr = *val;
> ++ Debug (12, "%s <- %lx\n", unw_regname (reg), *val);
> ++ }
> ++ else
> ++ {
> ++ *val = *(unw_word_t *) addr;
> ++ Debug (12, "%s -> %lx\n", unw_regname (reg), *val);
> ++ }
> ++ return 0;
> ++
> ++ badreg:
> ++ Debug (1, "bad register number %u\n", reg);
> ++ return -UNW_EBADREG;
> ++}
> ++
> ++static int
> ++access_fpreg (unw_addr_space_t as, unw_regnum_t reg, unw_fpreg_t *val,
> ++ int write, void *arg)
> ++{
> ++ ucontext_t *uc = arg;
> ++ unw_fpreg_t *addr;
> ++
> ++ if (!unw_is_fpreg (reg))
> ++ goto badreg;
> ++
> ++ if (!(addr = uc_addr (uc, reg)))
> ++ goto badreg;
> ++
> ++ if (write)
> ++ {
> ++ Debug (12, "%s <- %08lx.%08lx.%08lx\n", unw_regname (reg),
> ++ ((long *)val)[0], ((long *)val)[1], ((long *)val)[2]);
> ++ *(unw_fpreg_t *) addr = *val;
> ++ }
> ++ else
> ++ {
> ++ *val = *(unw_fpreg_t *) addr;
> ++ Debug (12, "%s -> %08lx.%08lx.%08lx\n", unw_regname (reg),
> ++ ((long *)val)[0], ((long *)val)[1], ((long *)val)[2]);
> ++ }
> ++ return 0;
> ++
> ++ badreg:
> ++ Debug (1, "bad register number %u\n", reg);
> ++ /* attempt to access a non-preserved register */
> ++ return -UNW_EBADREG;
> ++}
> ++
> ++static int
> ++get_static_proc_name (unw_addr_space_t as, unw_word_t ip,
> ++ char *buf, size_t buf_len, unw_word_t *offp,
> ++ void *arg)
> ++{
> ++ return _Uelf64_get_proc_name (as, getpid (), ip, buf, buf_len, offp);
> ++}
> ++
> ++HIDDEN void
> ++aarch64_local_addr_space_init (void)
> ++{
> ++ memset (&local_addr_space, 0, sizeof (local_addr_space));
> ++ local_addr_space.caching_policy = UNW_CACHE_GLOBAL;
> ++ local_addr_space.acc.find_proc_info = dwarf_find_proc_info;
> ++ local_addr_space.acc.put_unwind_info = put_unwind_info;
> ++ local_addr_space.acc.get_dyn_info_list_addr = get_dyn_info_list_addr;
> ++ local_addr_space.acc.access_mem = access_mem;
> ++ local_addr_space.acc.access_reg = access_reg;
> ++ local_addr_space.acc.access_fpreg = access_fpreg;
> ++ local_addr_space.acc.resume = aarch64_local_resume;
> ++ local_addr_space.acc.get_proc_name = get_static_proc_name;
> ++ unw_flush_cache (&local_addr_space, 0, 0);
> ++}
> ++
> ++#endif /* !UNW_REMOTE_ONLY */
> +--- /dev/null
> ++++ b/src/aarch64/Ginit_local.c
> +@@ -0,0 +1,55 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2011-2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++#include "init.h"
> ++
> ++#ifdef UNW_REMOTE_ONLY
> ++
> ++PROTECTED int
> ++unw_init_local (unw_cursor_t *cursor, unw_context_t *uc)
> ++{
> ++ return -UNW_EINVAL;
> ++}
> ++
> ++#else /* !UNW_REMOTE_ONLY */
> ++
> ++PROTECTED int
> ++unw_init_local (unw_cursor_t *cursor, unw_context_t *uc)
> ++{
> ++ struct cursor *c = (struct cursor *) cursor;
> ++
> ++ if (!tdep_init_done)
> ++ tdep_init ();
> ++
> ++ Debug (1, "(cursor=%p)\n", c);
> ++
> ++ c->dwarf.as = unw_local_addr_space;
> ++ c->dwarf.as_arg = uc;
> ++
> ++ return common_init (c, 1);
> ++}
> ++
> ++#endif /* !UNW_REMOTE_ONLY */
> +--- /dev/null
> ++++ b/src/aarch64/Ginit_remote.c
> +@@ -0,0 +1,45 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "init.h"
> ++#include "unwind_i.h"
> ++
> ++PROTECTED int
> ++unw_init_remote (unw_cursor_t *cursor, unw_addr_space_t as, void *as_arg)
> ++{
> ++#ifdef UNW_LOCAL_ONLY
> ++ return -UNW_EINVAL;
> ++#else /* !UNW_LOCAL_ONLY */
> ++ struct cursor *c = (struct cursor *) cursor;
> ++
> ++ if (!tdep_init_done)
> ++ tdep_init ();
> ++
> ++ Debug (1, "(cursor=%p)\n", c);
> ++
> ++ c->dwarf.as = as;
> ++ c->dwarf.as_arg = as_arg;
> ++ return common_init (c, 0);
> ++#endif /* !UNW_LOCAL_ONLY */
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gis_signal_frame.c
> +@@ -0,0 +1,64 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++
> ++/* The restorer stub will always have the form:
> ++
> ++ d2801168 movz x8, #0x8b
> ++ d4000001 svc #0x0
> ++*/
> ++
> ++PROTECTED int
> ++unw_is_signal_frame (unw_cursor_t *cursor)
> ++{
> ++#ifdef __linux__
> ++ struct cursor *c = (struct cursor *) cursor;
> ++ unw_word_t w0, ip;
> ++ unw_addr_space_t as;
> ++ unw_accessors_t *a;
> ++ void *arg;
> ++ int ret;
> ++
> ++ as = c->dwarf.as;
> ++ a = unw_get_accessors (as);
> ++ arg = c->dwarf.as_arg;
> ++
> ++ ip = c->dwarf.ip;
> ++
> ++ ret = (*a->access_mem) (as, ip, &w0, 0, arg);
> ++ if (ret < 0)
> ++ return ret;
> ++
> ++ /* FIXME: distinguish 32bit insn vs 64bit registers. */
> ++ if (w0 != 0xd4000001d2801168)
> ++ return 0;
> ++
> ++ return 1;
> ++
> ++#else
> ++ return -UNW_ENOINFO;
> ++#endif
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gregs.c
> +@@ -0,0 +1,113 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++
> ++HIDDEN int
> ++tdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp,
> ++ int write)
> ++{
> ++ dwarf_loc_t loc = DWARF_NULL_LOC;
> ++ unsigned int mask;
> ++
> ++ switch (reg)
> ++ {
> ++ case UNW_AARCH64_X0:
> ++ case UNW_AARCH64_X1:
> ++ case UNW_AARCH64_X2:
> ++ case UNW_AARCH64_X3:
> ++ mask = 1 << reg;
> ++ if (write)
> ++ {
> ++ c->dwarf.eh_args[reg] = *valp;
> ++ c->dwarf.eh_valid_mask |= mask;
> ++ return 0;
> ++ }
> ++ else if ((c->dwarf.eh_valid_mask & mask) != 0)
> ++ {
> ++ *valp = c->dwarf.eh_args[reg];
> ++ return 0;
> ++ }
> ++ else
> ++ loc = c->dwarf.loc[reg];
> ++ break;
> ++
> ++ case UNW_AARCH64_X4:
> ++ case UNW_AARCH64_X5:
> ++ case UNW_AARCH64_X6:
> ++ case UNW_AARCH64_X7:
> ++ case UNW_AARCH64_X8:
> ++ case UNW_AARCH64_X9:
> ++ case UNW_AARCH64_X10:
> ++ case UNW_AARCH64_X11:
> ++ case UNW_AARCH64_X12:
> ++ case UNW_AARCH64_X13:
> ++ case UNW_AARCH64_X14:
> ++ case UNW_AARCH64_X15:
> ++ case UNW_AARCH64_X16:
> ++ case UNW_AARCH64_X17:
> ++ case UNW_AARCH64_X18:
> ++ case UNW_AARCH64_X19:
> ++ case UNW_AARCH64_X20:
> ++ case UNW_AARCH64_X21:
> ++ case UNW_AARCH64_X22:
> ++ case UNW_AARCH64_X23:
> ++ case UNW_AARCH64_X24:
> ++ case UNW_AARCH64_X25:
> ++ case UNW_AARCH64_X26:
> ++ case UNW_AARCH64_X27:
> ++ case UNW_AARCH64_X28:
> ++ case UNW_AARCH64_X29:
> ++ case UNW_AARCH64_X30:
> ++ case UNW_AARCH64_PC:
> ++ case UNW_AARCH64_PSTATE:
> ++ loc = c->dwarf.loc[reg];
> ++ break;
> ++
> ++ case UNW_AARCH64_SP:
> ++ if (write)
> ++ return -UNW_EREADONLYREG;
> ++ *valp = c->dwarf.cfa;
> ++ return 0;
> ++
> ++ default:
> ++ Debug (1, "bad register number %u\n", reg);
> ++ return -UNW_EBADREG;
> ++ }
> ++
> ++ if (write)
> ++ return dwarf_put (&c->dwarf, loc, *valp);
> ++ else
> ++ return dwarf_get (&c->dwarf, loc, valp);
> ++}
> ++
> ++HIDDEN int
> ++tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp,
> ++ int write)
> ++{
> ++ Debug (1, "bad register number %u\n", reg);
> ++ return -UNW_EBADREG;
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gresume.c
> +@@ -0,0 +1,177 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2011-2013 Linaro Limited
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++#include "offsets.h"
> ++
> ++#ifndef UNW_REMOTE_ONLY
> ++
> ++HIDDEN inline int
> ++aarch64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, void *arg)
> ++{
> ++#ifdef __linux__
> ++ struct cursor *c = (struct cursor *) cursor;
> ++ unw_tdep_context_t *uc = c->dwarf.as_arg;
> ++
> ++ if (c->sigcontext_format == AARCH64_SCF_NONE)
> ++ {
> ++ /* Since there are no signals involved here we restore the non scratch
> ++ registers only. */
> ++ unsigned long regs[11];
> ++ regs[0] = uc->uc_mcontext.regs[19];
> ++ regs[1] = uc->uc_mcontext.regs[20];
> ++ regs[2] = uc->uc_mcontext.regs[21];
> ++ regs[3] = uc->uc_mcontext.regs[22];
> ++ regs[4] = uc->uc_mcontext.regs[23];
> ++ regs[5] = uc->uc_mcontext.regs[24];
> ++ regs[6] = uc->uc_mcontext.regs[25];
> ++ regs[7] = uc->uc_mcontext.regs[26];
> ++ regs[8] = uc->uc_mcontext.regs[27];
> ++ regs[9] = uc->uc_mcontext.regs[28];
> ++ regs[10] = uc->uc_mcontext.regs[30]; /* LR */
> ++ unsigned long sp = uc->uc_mcontext.sp;
> ++
> ++ struct regs_overlay {
> ++ char x[sizeof(regs)];
> ++ };
> ++
> ++ asm volatile (
> ++ "ldp x19, x20, [%0]\n"
> ++ "ldp x21, x22, [%0,16]\n"
> ++ "ldp x23, x24, [%0,32]\n"
> ++ "ldp x25, x26, [%0,48]\n"
> ++ "ldp x27, x28, [%0,64]\n"
> ++ "ldr x30, [%0,80]\n"
> ++ "mov sp, %1\n"
> ++ "ret \n"
> ++ :
> ++ : "r" (regs),
> ++ "r" (sp),
> ++ "m" (*(struct regs_overlay *)regs)
> ++ );
> ++ }
> ++ else
> ++ {
> ++ struct sigcontext *sc = (struct sigcontext *) c->sigcontext_addr;
> ++
> ++ if (c->dwarf.eh_valid_mask & 0x1) sc->regs[0] = c->dwarf.eh_args[0];
> ++ if (c->dwarf.eh_valid_mask & 0x2) sc->regs[1] = c->dwarf.eh_args[1];
> ++ if (c->dwarf.eh_valid_mask & 0x4) sc->regs[2] = c->dwarf.eh_args[2];
> ++ if (c->dwarf.eh_valid_mask & 0x8) sc->regs[3] = c->dwarf.eh_args[3];
> ++
> ++ sc->regs[4] = uc->uc_mcontext.regs[4];
> ++ sc->regs[5] = uc->uc_mcontext.regs[5];
> ++ sc->regs[6] = uc->uc_mcontext.regs[6];
> ++ sc->regs[7] = uc->uc_mcontext.regs[7];
> ++ sc->regs[8] = uc->uc_mcontext.regs[8];
> ++ sc->regs[9] = uc->uc_mcontext.regs[9];
> ++ sc->regs[10] = uc->uc_mcontext.regs[10];
> ++ sc->regs[11] = uc->uc_mcontext.regs[11];
> ++ sc->regs[12] = uc->uc_mcontext.regs[12];
> ++ sc->regs[13] = uc->uc_mcontext.regs[13];
> ++ sc->regs[14] = uc->uc_mcontext.regs[14];
> ++ sc->regs[15] = uc->uc_mcontext.regs[15];
> ++ sc->regs[16] = uc->uc_mcontext.regs[16];
> ++ sc->regs[17] = uc->uc_mcontext.regs[17];
> ++ sc->regs[18] = uc->uc_mcontext.regs[18];
> ++ sc->regs[19] = uc->uc_mcontext.regs[19];
> ++ sc->regs[20] = uc->uc_mcontext.regs[20];
> ++ sc->regs[21] = uc->uc_mcontext.regs[21];
> ++ sc->regs[22] = uc->uc_mcontext.regs[22];
> ++ sc->regs[23] = uc->uc_mcontext.regs[23];
> ++ sc->regs[24] = uc->uc_mcontext.regs[24];
> ++ sc->regs[25] = uc->uc_mcontext.regs[25];
> ++ sc->regs[26] = uc->uc_mcontext.regs[26];
> ++ sc->regs[27] = uc->uc_mcontext.regs[27];
> ++ sc->regs[28] = uc->uc_mcontext.regs[28];
> ++ sc->regs[29] = uc->uc_mcontext.regs[29];
> ++ sc->regs[30] = uc->uc_mcontext.regs[30];
> ++ sc->sp = uc->uc_mcontext.sp;
> ++ sc->pc = uc->uc_mcontext.pc;
> ++ sc->pstate = uc->uc_mcontext.pstate;
> ++
> ++ asm volatile (
> ++ "mov sp, %0\n"
> ++ "ret %1\n"
> ++ : : "r" (c->sigcontext_sp), "r" (c->sigcontext_pc)
> ++ );
> ++ }
> ++ unreachable();
> ++#else
> ++ printf ("%s: implement me\n", __FUNCTION__);
> ++#endif
> ++ return -UNW_EINVAL;
> ++}
> ++
> ++#endif /* !UNW_REMOTE_ONLY */
> ++
> ++static inline void
> ++establish_machine_state (struct cursor *c)
> ++{
> ++ unw_addr_space_t as = c->dwarf.as;
> ++ void *arg = c->dwarf.as_arg;
> ++ unw_fpreg_t fpval;
> ++ unw_word_t val;
> ++ int reg;
> ++
> ++ Debug (8, "copying out cursor state\n");
> ++
> ++ for (reg = 0; reg <= UNW_AARCH64_PSTATE; ++reg)
> ++ {
> ++ Debug (16, "copying %s %d\n", unw_regname (reg), reg);
> ++ if (unw_is_fpreg (reg))
> ++ {
> ++ if (tdep_access_fpreg (c, reg, &fpval, 0) >= 0)
> ++ as->acc.access_fpreg (as, reg, &fpval, 1, arg);
> ++ }
> ++ else
> ++ {
> ++ if (tdep_access_reg (c, reg, &val, 0) >= 0)
> ++ as->acc.access_reg (as, reg, &val, 1, arg);
> ++ }
> ++ }
> ++}
> ++
> ++PROTECTED int
> ++unw_resume (unw_cursor_t *cursor)
> ++{
> ++ struct cursor *c = (struct cursor *) cursor;
> ++
> ++ Debug (1, "(cursor=%p)\n", c);
> ++
> ++ if (!c->dwarf.ip)
> ++ {
> ++ /* This can happen easily when the frame-chain gets truncated
> ++ due to bad or missing unwind-info. */
> ++ Debug (1, "refusing to resume execution at address 0\n");
> ++ return -UNW_EINVAL;
> ++ }
> ++
> ++ establish_machine_state (c);
> ++
> ++ return (*c->dwarf.as->acc.resume) (c->dwarf.as, (unw_cursor_t *) c,
> ++ c->dwarf.as_arg);
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Gstep.c
> +@@ -0,0 +1,129 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2011-2013 Linaro Limited
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++#include "offsets.h"
> ++
> ++PROTECTED int
> ++unw_handle_signal_frame (unw_cursor_t *cursor)
> ++{
> ++ struct cursor *c = (struct cursor *) cursor;
> ++ int ret;
> ++ unw_word_t sc_addr, sp, sp_addr = c->dwarf.cfa;
> ++ struct dwarf_loc sp_loc = DWARF_LOC (sp_addr, 0);
> ++
> ++ if ((ret = dwarf_get (&c->dwarf, sp_loc, &sp)) < 0)
> ++ return -UNW_EUNSPEC;
> ++
> ++ ret = unw_is_signal_frame (cursor);
> ++ Debug(1, "unw_is_signal_frame()=%d\n", ret);
> ++
> ++ /* Save the SP and PC to be able to return execution at this point
> ++ later in time (unw_resume). */
> ++ c->sigcontext_sp = c->dwarf.cfa;
> ++ c->sigcontext_pc = c->dwarf.ip;
> ++
> ++ if (ret)
> ++ {
> ++ c->sigcontext_format = AARCH64_SCF_LINUX_RT_SIGFRAME;
> ++ sc_addr = sp_addr + sizeof (siginfo_t) + LINUX_UC_MCONTEXT_OFF;
> ++ }
> ++ else
> ++ return -UNW_EUNSPEC;
> ++
> ++ c->sigcontext_addr = sc_addr;
> ++
> ++ /* Update the dwarf cursor.
> ++ Set the location of the registers to the corresponding addresses of the
> ++ uc_mcontext / sigcontext structure contents. */
> ++ c->dwarf.loc[UNW_AARCH64_X0] = DWARF_LOC (sc_addr + LINUX_SC_X0_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X1] = DWARF_LOC (sc_addr + LINUX_SC_X1_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X2] = DWARF_LOC (sc_addr + LINUX_SC_X2_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X3] = DWARF_LOC (sc_addr + LINUX_SC_X3_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X4] = DWARF_LOC (sc_addr + LINUX_SC_X4_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X5] = DWARF_LOC (sc_addr + LINUX_SC_X5_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X6] = DWARF_LOC (sc_addr + LINUX_SC_X6_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X7] = DWARF_LOC (sc_addr + LINUX_SC_X7_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X8] = DWARF_LOC (sc_addr + LINUX_SC_X8_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X9] = DWARF_LOC (sc_addr + LINUX_SC_X9_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X10] = DWARF_LOC (sc_addr + LINUX_SC_X10_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X11] = DWARF_LOC (sc_addr + LINUX_SC_X11_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X12] = DWARF_LOC (sc_addr + LINUX_SC_X12_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X13] = DWARF_LOC (sc_addr + LINUX_SC_X13_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X14] = DWARF_LOC (sc_addr + LINUX_SC_X14_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X15] = DWARF_LOC (sc_addr + LINUX_SC_X15_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X16] = DWARF_LOC (sc_addr + LINUX_SC_X16_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X17] = DWARF_LOC (sc_addr + LINUX_SC_X17_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X18] = DWARF_LOC (sc_addr + LINUX_SC_X18_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X19] = DWARF_LOC (sc_addr + LINUX_SC_X19_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X20] = DWARF_LOC (sc_addr + LINUX_SC_X20_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X21] = DWARF_LOC (sc_addr + LINUX_SC_X21_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X22] = DWARF_LOC (sc_addr + LINUX_SC_X22_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X23] = DWARF_LOC (sc_addr + LINUX_SC_X23_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X24] = DWARF_LOC (sc_addr + LINUX_SC_X24_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X25] = DWARF_LOC (sc_addr + LINUX_SC_X25_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X26] = DWARF_LOC (sc_addr + LINUX_SC_X26_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X27] = DWARF_LOC (sc_addr + LINUX_SC_X27_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X28] = DWARF_LOC (sc_addr + LINUX_SC_X28_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X29] = DWARF_LOC (sc_addr + LINUX_SC_X29_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_X30] = DWARF_LOC (sc_addr + LINUX_SC_X30_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_SP] = DWARF_LOC (sc_addr + LINUX_SC_SP_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_PC] = DWARF_LOC (sc_addr + LINUX_SC_PC_OFF, 0);
> ++ c->dwarf.loc[UNW_AARCH64_PSTATE] = DWARF_LOC (sc_addr + LINUX_SC_PSTATE_OFF, 0);
> ++
> ++ /* Set SP/CFA and PC/IP. */
> ++ dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_SP], &c->dwarf.cfa);
> ++ dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_PC], &c->dwarf.ip);
> ++
> ++ c->dwarf.pi_valid = 0;
> ++
> ++ return 1;
> ++}
> ++
> ++PROTECTED int
> ++unw_step (unw_cursor_t *cursor)
> ++{
> ++ struct cursor *c = (struct cursor *) cursor;
> ++ int ret;
> ++
> ++ Debug (1, "(cursor=%p, ip=0x%016lx, cfa=0x%016lx))\n",
> ++ c, c->dwarf.ip, c->dwarf.cfa);
> ++
> ++ /* Check if this is a signal frame. */
> ++ if (unw_is_signal_frame (cursor))
> ++ return unw_handle_signal_frame (cursor);
> ++
> ++ ret = dwarf_step (&c->dwarf);
> ++ Debug(1, "dwarf_step()=%d\n", ret);
> ++
> ++ if (unlikely (ret == -UNW_ESTOPUNWIND))
> ++ return ret;
> ++
> ++ if (unlikely (ret < 0))
> ++ return 0;
> ++
> ++ return (c->dwarf.ip == 0) ? 0 : 1;
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/Lcreate_addr_space.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gcreate_addr_space.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lget_proc_info.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gget_proc_info.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lget_save_loc.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gget_save_loc.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lglobal.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gglobal.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Linit.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Ginit.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Linit_local.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Ginit_local.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Linit_remote.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Ginit_remote.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lis_signal_frame.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gis_signal_frame.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lregs.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gregs.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lresume.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gresume.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/Lstep.c
> +@@ -0,0 +1,5 @@
> ++#define UNW_LOCAL_ONLY
> ++#include <libunwind.h>
> ++#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
> ++#include "Gstep.c"
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/gen-offsets.c
> +@@ -0,0 +1,68 @@
> ++#include <stdio.h>
> ++#include <stddef.h>
> ++#include <ucontext.h>
> ++#include <asm/sigcontext.h>
> ++
> ++#define UC(N,X) \
> ++ printf ("#define LINUX_UC_" N "_OFF\t0x%X\n", offsetof (ucontext_t, X))
> ++
> ++#define SC(N,X) \
> ++ printf ("#define LINUX_SC_" N "_OFF\t0x%X\n", offsetof (struct sigcontext, X))
> ++
> ++int
> ++main (void)
> ++{
> ++ printf (
> ++"/* Linux-specific definitions: */\n\n"
> ++
> ++"/* Define various structure offsets to simplify cross-compilation. */\n\n"
> ++
> ++"/* Offsets for AArch64 Linux \"ucontext_t\": */\n\n");
> ++
> ++ UC ("FLAGS", uc_flags);
> ++ UC ("LINK", uc_link);
> ++ UC ("STACK", uc_stack);
> ++ UC ("MCONTEXT", uc_mcontext);
> ++ UC ("SIGMASK", uc_sigmask);
> ++
> ++ printf ("\n/* Offsets for AArch64 Linux \"struct sigcontext\": */\n\n");
> ++
> ++ SC ("R0", regs[0]);
> ++ SC ("R1", regs[1]);
> ++ SC ("R2", regs[2]);
> ++ SC ("R3", regs[3]);
> ++ SC ("R4", regs[4]);
> ++ SC ("R5", regs[5]);
> ++ SC ("R6", regs[6]);
> ++ SC ("R7", regs[7]);
> ++ SC ("R8", regs[8]);
> ++ SC ("R9", regs[9]);
> ++ SC ("R10", regs[10]);
> ++ SC ("R11", regs[11]);
> ++ SC ("R12", regs[12]);
> ++ SC ("R13", regs[13]);
> ++ SC ("R14", regs[14]);
> ++ SC ("R15", regs[15]);
> ++ SC ("R16", regs[16]);
> ++ SC ("R17", regs[17]);
> ++ SC ("R18", regs[18]);
> ++ SC ("R19", regs[19]);
> ++ SC ("R20", regs[20]);
> ++ SC ("R21", regs[21]);
> ++ SC ("R22", regs[22]);
> ++ SC ("R23", regs[23]);
> ++ SC ("R24", regs[24]);
> ++ SC ("R25", regs[25]);
> ++ SC ("R26", regs[26]);
> ++ SC ("R27", regs[27]);
> ++ SC ("R28", regs[28]);
> ++ SC ("R29", regs[29]);
> ++ SC ("R30", regs[30]);
> ++ SC ("R31", regs[31]);
> ++
> ++ SC ("PC", pc);
> ++ SC ("SP", sp);
> ++ SC ("Fault", fault_address);
> ++ SC ("state", pstate);
> ++ return 0;
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/init.h
> +@@ -0,0 +1,127 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++
> ++static inline int
> ++common_init (struct cursor *c, unsigned use_prev_instr)
> ++{
> ++ int ret, i;
> ++
> ++ c->dwarf.loc[UNW_AARCH64_X0] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X0);
> ++ c->dwarf.loc[UNW_AARCH64_X1] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X1);
> ++ c->dwarf.loc[UNW_AARCH64_X2] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X2);
> ++ c->dwarf.loc[UNW_AARCH64_X3] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X3);
> ++ c->dwarf.loc[UNW_AARCH64_X4] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X4);
> ++ c->dwarf.loc[UNW_AARCH64_X5] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X5);
> ++ c->dwarf.loc[UNW_AARCH64_X6] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X6);
> ++ c->dwarf.loc[UNW_AARCH64_X7] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X7);
> ++ c->dwarf.loc[UNW_AARCH64_X8] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X8);
> ++ c->dwarf.loc[UNW_AARCH64_X9] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X9);
> ++ c->dwarf.loc[UNW_AARCH64_X10] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X10);
> ++ c->dwarf.loc[UNW_AARCH64_X11] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X11);
> ++ c->dwarf.loc[UNW_AARCH64_X12] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X12);
> ++ c->dwarf.loc[UNW_AARCH64_X13] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X13);
> ++ c->dwarf.loc[UNW_AARCH64_X14] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X14);
> ++ c->dwarf.loc[UNW_AARCH64_X15] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X15);
> ++ c->dwarf.loc[UNW_AARCH64_X16] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X16);
> ++ c->dwarf.loc[UNW_AARCH64_X17] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X17);
> ++ c->dwarf.loc[UNW_AARCH64_X18] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X18);
> ++ c->dwarf.loc[UNW_AARCH64_X19] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X19);
> ++ c->dwarf.loc[UNW_AARCH64_X20] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X20);
> ++ c->dwarf.loc[UNW_AARCH64_X21] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X21);
> ++ c->dwarf.loc[UNW_AARCH64_X22] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X22);
> ++ c->dwarf.loc[UNW_AARCH64_X23] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X23);
> ++ c->dwarf.loc[UNW_AARCH64_X24] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X24);
> ++ c->dwarf.loc[UNW_AARCH64_X25] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X25);
> ++ c->dwarf.loc[UNW_AARCH64_X26] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X26);
> ++ c->dwarf.loc[UNW_AARCH64_X27] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X27);
> ++ c->dwarf.loc[UNW_AARCH64_X28] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X28);
> ++ c->dwarf.loc[UNW_AARCH64_X29] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X29);
> ++ c->dwarf.loc[UNW_AARCH64_X30] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_X30);
> ++ c->dwarf.loc[UNW_AARCH64_SP] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_SP);
> ++ c->dwarf.loc[UNW_AARCH64_PC] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_PC);
> ++ c->dwarf.loc[UNW_AARCH64_PSTATE] = DWARF_REG_LOC (&c->dwarf,
> ++ UNW_AARCH64_PSTATE);
> ++ c->dwarf.loc[UNW_AARCH64_V0] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V0);
> ++ c->dwarf.loc[UNW_AARCH64_V1] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V1);
> ++ c->dwarf.loc[UNW_AARCH64_V2] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V2);
> ++ c->dwarf.loc[UNW_AARCH64_V3] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V3);
> ++ c->dwarf.loc[UNW_AARCH64_V4] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V4);
> ++ c->dwarf.loc[UNW_AARCH64_V5] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V5);
> ++ c->dwarf.loc[UNW_AARCH64_V6] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V6);
> ++ c->dwarf.loc[UNW_AARCH64_V7] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V7);
> ++ c->dwarf.loc[UNW_AARCH64_V8] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V8);
> ++ c->dwarf.loc[UNW_AARCH64_V9] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V9);
> ++ c->dwarf.loc[UNW_AARCH64_V10] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V10);
> ++ c->dwarf.loc[UNW_AARCH64_V11] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V11);
> ++ c->dwarf.loc[UNW_AARCH64_V12] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V12);
> ++ c->dwarf.loc[UNW_AARCH64_V13] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V13);
> ++ c->dwarf.loc[UNW_AARCH64_V14] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V14);
> ++ c->dwarf.loc[UNW_AARCH64_V15] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V15);
> ++ c->dwarf.loc[UNW_AARCH64_V16] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V16);
> ++ c->dwarf.loc[UNW_AARCH64_V17] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V17);
> ++ c->dwarf.loc[UNW_AARCH64_V18] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V18);
> ++ c->dwarf.loc[UNW_AARCH64_V19] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V19);
> ++ c->dwarf.loc[UNW_AARCH64_V20] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V20);
> ++ c->dwarf.loc[UNW_AARCH64_V21] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V21);
> ++ c->dwarf.loc[UNW_AARCH64_V22] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V22);
> ++ c->dwarf.loc[UNW_AARCH64_V23] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V23);
> ++ c->dwarf.loc[UNW_AARCH64_V24] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V24);
> ++ c->dwarf.loc[UNW_AARCH64_V25] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V25);
> ++ c->dwarf.loc[UNW_AARCH64_V26] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V26);
> ++ c->dwarf.loc[UNW_AARCH64_V27] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V27);
> ++ c->dwarf.loc[UNW_AARCH64_V28] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V28);
> ++ c->dwarf.loc[UNW_AARCH64_V29] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V29);
> ++ c->dwarf.loc[UNW_AARCH64_V30] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V30);
> ++ c->dwarf.loc[UNW_AARCH64_V31] = DWARF_REG_LOC (&c->dwarf, UNW_AARCH64_V31);
> ++
> ++ for (i = UNW_AARCH64_PSTATE + 1; i < UNW_AARCH64_V0; ++i)
> ++ c->dwarf.loc[i] = DWARF_NULL_LOC;
> ++
> ++ ret = dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_PC], &c->dwarf.ip);
> ++ if (ret < 0)
> ++ return ret;
> ++
> ++ ret = dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_SP], &c->dwarf.cfa);
> ++ if (ret < 0)
> ++ return ret;
> ++
> ++ c->sigcontext_format = AARCH64_SCF_NONE;
> ++ c->sigcontext_addr = 0;
> ++ c->sigcontext_sp = 0;
> ++ c->sigcontext_pc = 0;
> ++
> ++ c->dwarf.args_size = 0;
> ++ c->dwarf.ret_addr_column = 0;
> ++ c->dwarf.stash_frames = 0;
> ++ c->dwarf.use_prev_instr = use_prev_instr;
> ++ c->dwarf.pi_valid = 0;
> ++ c->dwarf.pi_is_dynamic = 0;
> ++ c->dwarf.hint = 0;
> ++ c->dwarf.prev_rs = 0;
> ++
> ++ return 0;
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/is_fpreg.c
> +@@ -0,0 +1,32 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "libunwind_i.h"
> ++
> ++PROTECTED int
> ++unw_is_fpreg (int regnum)
> ++{
> ++ return (regnum >= UNW_AARCH64_V0 && regnum <= UNW_AARCH64_V31);
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/offsets.h
> +@@ -0,0 +1,49 @@
> ++/* Linux-specific definitions: */
> ++
> ++/* Define various structure offsets to simplify cross-compilation. */
> ++
> ++/* Offsets for AArch64 Linux "ucontext_t": */
> ++
> ++#define LINUX_UC_FLAGS_OFF 0x0
> ++#define LINUX_UC_LINK_OFF 0x8
> ++#define LINUX_UC_STACK_OFF 0x10
> ++#define LINUX_UC_SIGMASK_OFF 0x28
> ++#define LINUX_UC_MCONTEXT_OFF 0xb0
> ++
> ++/* Offsets for AArch64 Linux "struct sigcontext": */
> ++
> ++#define LINUX_SC_FAULTADDRESS_OFF 0x00
> ++#define LINUX_SC_X0_OFF 0x008
> ++#define LINUX_SC_X1_OFF 0x010
> ++#define LINUX_SC_X2_OFF 0x018
> ++#define LINUX_SC_X3_OFF 0x020
> ++#define LINUX_SC_X4_OFF 0x028
> ++#define LINUX_SC_X5_OFF 0x030
> ++#define LINUX_SC_X6_OFF 0x038
> ++#define LINUX_SC_X7_OFF 0x040
> ++#define LINUX_SC_X8_OFF 0x048
> ++#define LINUX_SC_X9_OFF 0x050
> ++#define LINUX_SC_X10_OFF 0x058
> ++#define LINUX_SC_X11_OFF 0x060
> ++#define LINUX_SC_X12_OFF 0x068
> ++#define LINUX_SC_X13_OFF 0x070
> ++#define LINUX_SC_X14_OFF 0x078
> ++#define LINUX_SC_X15_OFF 0x080
> ++#define LINUX_SC_X16_OFF 0x088
> ++#define LINUX_SC_X17_OFF 0x090
> ++#define LINUX_SC_X18_OFF 0x098
> ++#define LINUX_SC_X19_OFF 0x0a0
> ++#define LINUX_SC_X20_OFF 0x0a8
> ++#define LINUX_SC_X21_OFF 0x0b0
> ++#define LINUX_SC_X22_OFF 0x0b8
> ++#define LINUX_SC_X23_OFF 0x0c0
> ++#define LINUX_SC_X24_OFF 0x0c8
> ++#define LINUX_SC_X25_OFF 0x0d0
> ++#define LINUX_SC_X26_OFF 0x0d8
> ++#define LINUX_SC_X27_OFF 0x0e0
> ++#define LINUX_SC_X28_OFF 0x0e8
> ++#define LINUX_SC_X29_OFF 0x0f0
> ++#define LINUX_SC_X30_OFF 0x0f8
> ++#define LINUX_SC_SP_OFF 0x100
> ++#define LINUX_SC_PC_OFF 0x108
> ++#define LINUX_SC_PSTATE_OFF 0x110
> +--- /dev/null
> ++++ b/src/aarch64/regname.c
> +@@ -0,0 +1,106 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#include "unwind_i.h"
> ++
> ++static const char *const regname[] =
> ++ {
> ++ [UNW_AARCH64_X0] = "x0",
> ++ [UNW_AARCH64_X1] = "x1",
> ++ [UNW_AARCH64_X2] = "x2",
> ++ [UNW_AARCH64_X3] = "x3",
> ++ [UNW_AARCH64_X4] = "x4",
> ++ [UNW_AARCH64_X5] = "x5",
> ++ [UNW_AARCH64_X6] = "x6",
> ++ [UNW_AARCH64_X7] = "x7",
> ++ [UNW_AARCH64_X8] = "x8",
> ++ [UNW_AARCH64_X9] = "x9",
> ++ [UNW_AARCH64_X10] = "x10",
> ++ [UNW_AARCH64_X11] = "x11",
> ++ [UNW_AARCH64_X12] = "x12",
> ++ [UNW_AARCH64_X13] = "x13",
> ++ [UNW_AARCH64_X14] = "x14",
> ++ [UNW_AARCH64_X15] = "x15",
> ++ [UNW_AARCH64_X16] = "ip0",
> ++ [UNW_AARCH64_X17] = "ip1",
> ++ [UNW_AARCH64_X18] = "x18",
> ++ [UNW_AARCH64_X19] = "x19",
> ++ [UNW_AARCH64_X20] = "x20",
> ++ [UNW_AARCH64_X21] = "x21",
> ++ [UNW_AARCH64_X22] = "x22",
> ++ [UNW_AARCH64_X23] = "x23",
> ++ [UNW_AARCH64_X24] = "x24",
> ++ [UNW_AARCH64_X25] = "x25",
> ++ [UNW_AARCH64_X26] = "x26",
> ++ [UNW_AARCH64_X27] = "x27",
> ++ [UNW_AARCH64_X28] = "x28",
> ++ [UNW_AARCH64_X29] = "fp",
> ++ [UNW_AARCH64_X30] = "lr",
> ++ [UNW_AARCH64_SP] = "sp",
> ++ [UNW_AARCH64_PC] = "pc",
> ++ [UNW_AARCH64_V0] = "v0",
> ++ [UNW_AARCH64_V1] = "v1",
> ++ [UNW_AARCH64_V2] = "v2",
> ++ [UNW_AARCH64_V3] = "v3",
> ++ [UNW_AARCH64_V4] = "v4",
> ++ [UNW_AARCH64_V5] = "v5",
> ++ [UNW_AARCH64_V6] = "v6",
> ++ [UNW_AARCH64_V7] = "v7",
> ++ [UNW_AARCH64_V8] = "v8",
> ++ [UNW_AARCH64_V9] = "v9",
> ++ [UNW_AARCH64_V10] = "v10",
> ++ [UNW_AARCH64_V11] = "v11",
> ++ [UNW_AARCH64_V12] = "v12",
> ++ [UNW_AARCH64_V13] = "v13",
> ++ [UNW_AARCH64_V14] = "v14",
> ++ [UNW_AARCH64_V15] = "v15",
> ++ [UNW_AARCH64_V16] = "v16",
> ++ [UNW_AARCH64_V17] = "v17",
> ++ [UNW_AARCH64_V18] = "v18",
> ++ [UNW_AARCH64_V19] = "v19",
> ++ [UNW_AARCH64_V20] = "v20",
> ++ [UNW_AARCH64_V21] = "v21",
> ++ [UNW_AARCH64_V22] = "v22",
> ++ [UNW_AARCH64_V23] = "v23",
> ++ [UNW_AARCH64_V24] = "v24",
> ++ [UNW_AARCH64_V25] = "v25",
> ++ [UNW_AARCH64_V26] = "v26",
> ++ [UNW_AARCH64_V27] = "v27",
> ++ [UNW_AARCH64_V28] = "v28",
> ++ [UNW_AARCH64_V29] = "v29",
> ++ [UNW_AARCH64_V30] = "v30",
> ++ [UNW_AARCH64_V31] = "v31",
> ++ [UNW_AARCH64_FPSR] = "fpsr",
> ++ [UNW_AARCH64_FPCR] = "fpcr",
> ++ };
> ++
> ++PROTECTED const char *
> ++unw_regname (unw_regnum_t reg)
> ++{
> ++ if (reg < (unw_regnum_t) ARRAY_SIZE (regname) && regname[reg] != NULL)
> ++ return regname[reg];
> ++ else
> ++ return "???";
> ++}
> +--- /dev/null
> ++++ b/src/aarch64/siglongjmp.S
> +@@ -0,0 +1,12 @@
> ++ /* Dummy implementation for now. */
> ++
> ++ .global _UI_siglongjmp_cont
> ++ .global _UI_longjmp_cont
> ++
> ++_UI_siglongjmp_cont:
> ++_UI_longjmp_cont:
> ++ ret
> ++#ifdef __linux__
> ++ /* We do not need executable stack. */
> ++ .section .note.GNU-stack,"",%progbits
> ++#endif
> +--- /dev/null
> ++++ b/src/aarch64/unwind_i.h
> +@@ -0,0 +1,43 @@
> ++/* libunwind - a platform-independent unwind library
> ++ Copyright (C) 2008 CodeSourcery
> ++ Copyright (C) 2013 Linaro Limited
> ++
> ++This file is part of libunwind.
> ++
> ++Permission is hereby granted, free of charge, to any person obtaining
> ++a copy of this software and associated documentation files (the
> ++"Software"), to deal in the Software without restriction, including
> ++without limitation the rights to use, copy, modify, merge, publish,
> ++distribute, sublicense, and/or sell copies of the Software, and to
> ++permit persons to whom the Software is furnished to do so, subject to
> ++the following conditions:
> ++
> ++The above copyright notice and this permission notice shall be
> ++included in all copies or substantial portions of the Software.
> ++
> ++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> ++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> ++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> ++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
> ++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
> ++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
> ++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
> ++
> ++#ifndef unwind_i_h
> ++#define unwind_i_h
> ++
> ++#include <stdint.h>
> ++
> ++#include <libunwind-aarch64.h>
> ++
> ++#include "libunwind_i.h"
> ++
> ++#define aarch64_lock UNW_OBJ(lock)
> ++#define aarch64_local_resume UNW_OBJ(local_resume)
> ++#define aarch64_local_addr_space_init UNW_OBJ(local_addr_space_init)
> ++
> ++extern void aarch64_local_addr_space_init (void);
> ++extern int aarch64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor,
> ++ void *arg);
> ++
> ++#endif /* unwind_i_h */
> +--- a/src/coredump/_UCD_access_reg_linux.c
> ++++ b/src/coredump/_UCD_access_reg_linux.c
> +@@ -39,7 +39,10 @@ _UCD_access_reg (unw_addr_space_t as,
> + return -UNW_EINVAL;
> + }
> +
> +-#if defined(UNW_TARGET_ARM)
> ++#if defined(UNW_TARGET_AARCH64)
> ++ if (regnum < 0 || regnum >= UNW_AARCH64_FPCR)
> ++ goto badreg;
> ++#elif defined(UNW_TARGET_ARM)
> + if (regnum < 0 || regnum >= 16)
> + goto badreg;
> + #elif defined(UNW_TARGET_SH)
> +--- a/src/ptrace/_UPT_reg_offset.c
> ++++ b/src/ptrace/_UPT_reg_offset.c
> +@@ -1,6 +1,7 @@
> + /* libunwind - a platform-independent unwind library
> + Copyright (C) 2003-2004 Hewlett-Packard Co
> + Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
> ++ Copyright (C) 2013 Linaro Limited
> +
> + This file is part of libunwind.
> +
> +@@ -501,6 +502,41 @@ const int _UPT_reg_offset[UNW_REG_LAST +
> + [UNW_ARM_R15] = 0x3c,
> + #elif defined(UNW_TARGET_MIPS)
> + #elif defined(UNW_TARGET_SH)
> ++#elif defined(UNW_TARGET_AARCH64)
> ++ [UNW_AARCH64_X0] = 0x00,
> ++ [UNW_AARCH64_X1] = 0x08,
> ++ [UNW_AARCH64_X2] = 0x10,
> ++ [UNW_AARCH64_X3] = 0x18,
> ++ [UNW_AARCH64_X4] = 0x20,
> ++ [UNW_AARCH64_X5] = 0x28,
> ++ [UNW_AARCH64_X6] = 0x30,
> ++ [UNW_AARCH64_X7] = 0x38,
> ++ [UNW_AARCH64_X8] = 0x40,
> ++ [UNW_AARCH64_X9] = 0x48,
> ++ [UNW_AARCH64_X10] = 0x50,
> ++ [UNW_AARCH64_X11] = 0x58,
> ++ [UNW_AARCH64_X12] = 0x60,
> ++ [UNW_AARCH64_X13] = 0x68,
> ++ [UNW_AARCH64_X14] = 0x70,
> ++ [UNW_AARCH64_X15] = 0x78,
> ++ [UNW_AARCH64_X16] = 0x80,
> ++ [UNW_AARCH64_X17] = 0x88,
> ++ [UNW_AARCH64_X18] = 0x90,
> ++ [UNW_AARCH64_X19] = 0x98,
> ++ [UNW_AARCH64_X20] = 0xa0,
> ++ [UNW_AARCH64_X21] = 0xa8,
> ++ [UNW_AARCH64_X22] = 0xb0,
> ++ [UNW_AARCH64_X23] = 0xb8,
> ++ [UNW_AARCH64_X24] = 0xc0,
> ++ [UNW_AARCH64_X25] = 0xc8,
> ++ [UNW_AARCH64_X26] = 0xd0,
> ++ [UNW_AARCH64_X27] = 0xd8,
> ++ [UNW_AARCH64_X28] = 0xe0,
> ++ [UNW_AARCH64_X29] = 0xe8,
> ++ [UNW_AARCH64_X30] = 0xf0,
> ++ [UNW_AARCH64_SP] = 0xf8,
> ++ [UNW_AARCH64_PC] = 0x100,
> ++ [UNW_AARCH64_PSTATE] = 0x108
> + #else
> + # error Fix me.
> + #endif
> diff --git a/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch b/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch
> new file mode 100644
> index 0000000..268b702
> --- /dev/null
> +++ b/meta/recipes-support/libunwind/libunwind-1.1/Support-building-with-older-compilers.patch
> @@ -0,0 +1,72 @@
> +From 10b064ffe902d5af31bb49bd8e4f03c545f8d462 Mon Sep 17 00:00:00 2001
> +From: Ladislav Michl <ladis@linux-mips.org>
> +Date: Tue, 13 Nov 2012 11:19:47 +0100
> +Subject: [PATCH] Support building with older compilers.
> +
> +Add a check for __builtin_unreachable.
> +
> +Upstream-Status: Pending
> +---
> + configure.ac | 11 +++++++++++
> + include/libunwind_i.h | 6 ++++++
> + src/arm/Gresume.c | 2 +-
> + src/sh/Gresume.c | 2 +-
> + 4 files changed, 19 insertions(+), 2 deletions(-)
> +
> +--- a/configure.ac
> ++++ b/configure.ac
> +@@ -285,6 +285,17 @@ if test x$have__builtin___clear_cache =
> + fi
> + AC_MSG_RESULT([$have__builtin___clear_cache])
> +
> ++AC_MSG_CHECKING([for __builtin_unreachable])
> ++AC_LINK_IFELSE(
> ++ [AC_LANG_PROGRAM([[]], [[__builtin_unreachable()]])],
> ++ [have__builtin_unreachable=yes],
> ++ [have__builtin_unreachable=no])
> ++if test x$have__builtin_unreachable = xyes; then
> ++ AC_DEFINE([HAVE__BUILTIN_UNREACHABLE], [1],
> ++ [Defined if __builtin_unreachable() is available])
> ++fi
> ++AC_MSG_RESULT([$have__builtin_unreachable])
> ++
> + AC_MSG_CHECKING([for __sync atomics])
> + AC_LINK_IFELSE(
> + [AC_LANG_PROGRAM([[]], [[
> +--- a/include/libunwind_i.h
> ++++ b/include/libunwind_i.h
> +@@ -72,6 +72,12 @@ WITH THE SOFTWARE OR THE USE OR OTHER DE
> + # endif
> + #endif
> +
> ++#if defined(HAVE__BUILTIN_UNREACHABLE)
> ++# define unreachable() __builtin_unreachable()
> ++#else
> ++# define unreachable() do { } while (1)
> ++#endif
> ++
> + #ifdef DEBUG
> + # define UNW_DEBUG 1
> + #else
> +--- a/src/arm/Gresume.c
> ++++ b/src/arm/Gresume.c
> +@@ -96,7 +96,7 @@ arm_local_resume (unw_addr_space_t as, u
> + : : "r" (c->sigcontext_sp), "r" (c->sigcontext_pc)
> + );
> + }
> +- __builtin_unreachable();
> ++ unreachable();
> + #else
> + printf ("%s: implement me\n", __FUNCTION__);
> + #endif
> +--- a/src/sh/Gresume.c
> ++++ b/src/sh/Gresume.c
> +@@ -109,7 +109,7 @@ sh_local_resume (unw_addr_space_t as, un
> + "r" (c->sigcontext_pc)
> + );
> + }
> +- __builtin_unreachable();
> ++ unreachable();
> + #endif
> + return -UNW_EINVAL;
> + }
> diff --git a/meta/recipes-support/libunwind/libunwind.inc b/meta/recipes-support/libunwind/libunwind.inc
> index b27b9e5..6743b21 100644
> --- a/meta/recipes-support/libunwind/libunwind.inc
> +++ b/meta/recipes-support/libunwind/libunwind.inc
> @@ -11,6 +11,7 @@ PACKAGECONFIG ??= ""
> PACKAGECONFIG[lzma] = "--enable-minidebuginfo,--disable-minidebuginfo,lzma"
>
> EXTRA_OECONF_arm = "--enable-debug-frame"
> +EXTRA_OECONF_aarch64 = "--enable-debug-frame"
>
> CFLAGS += "${ATOMICOPS}"
> ATOMICOPS_armv5 = "-DAO_USE_PTHREAD_DEFS=1"
> diff --git a/meta/recipes-support/libunwind/libunwind_1.1.bb b/meta/recipes-support/libunwind/libunwind_1.1.bb
> index bc38e36..2e52430 100644
> --- a/meta/recipes-support/libunwind/libunwind_1.1.bb
> +++ b/meta/recipes-support/libunwind/libunwind_1.1.bb
> @@ -1,4 +1,9 @@
> require libunwind.inc
>
> +SRC_URI += "\
> + file://Support-building-with-older-compilers.patch \
> + file://AArch64-port.patch \
> +"
> +
> SRC_URI[md5sum] = "fb4ea2f6fbbe45bf032cd36e586883ce"
> SRC_URI[sha256sum] = "9dfe0fcae2a866de9d3942c66995e4b460230446887dbdab302d41a8aee8d09a"
next prev parent reply other threads:[~2016-09-20 2:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-26 9:59 [PATCH v2] libunwind: add aarch64 support Fathi Boudra
2014-09-28 7:39 ` Kang Kai
2016-09-20 2:12 ` ChenQi [this message]
2016-09-20 11:57 ` Fathi Boudra
2016-09-20 14:21 ` Randy MacLeod
2016-09-20 20:47 ` Khem Raj
2016-09-22 8:56 ` Fathi Boudra
2016-09-22 9:10 ` Fathi Boudra
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