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libunwind-aarch64.patch
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File libunwind-aarch64.patch of Package libunwind
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] [PATCH] AArch64 port. --- 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 Index: libunwind-1.1/Makefile.am =================================================================== --- libunwind-1.1.orig/Makefile.am +++ libunwind-1.1/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 \ Index: libunwind-1.1/README =================================================================== --- libunwind-1.1.orig/README +++ libunwind-1.1/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. Index: libunwind-1.1/configure.ac =================================================================== --- libunwind-1.1.orig/configure.ac +++ libunwind-1.1/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;; Index: libunwind-1.1/include/libunwind-aarch64.h =================================================================== --- /dev/null +++ libunwind-1.1/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 */ Index: libunwind-1.1/include/libunwind.h.in =================================================================== --- libunwind-1.1.orig/include/libunwind.h.in +++ libunwind-1.1/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" Index: libunwind-1.1/include/tdep-aarch64/dwarf-config.h =================================================================== --- /dev/null +++ libunwind-1.1/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 */ Index: libunwind-1.1/include/tdep-aarch64/jmpbuf.h =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/include/tdep-aarch64/libunwind_i.h =================================================================== --- /dev/null +++ libunwind-1.1/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 */ Index: libunwind-1.1/include/tdep/dwarf-config.h =================================================================== --- libunwind-1.1.orig/include/tdep/dwarf-config.h +++ libunwind-1.1/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" Index: libunwind-1.1/include/tdep/jmpbuf.h =================================================================== --- libunwind-1.1.orig/include/tdep/jmpbuf.h +++ libunwind-1.1/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__ Index: libunwind-1.1/include/tdep/libunwind_i.h.in =================================================================== --- libunwind-1.1.orig/include/tdep/libunwind_i.h.in +++ libunwind-1.1/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" Index: libunwind-1.1/src/Makefile.am =================================================================== --- libunwind-1.1.orig/src/Makefile.am +++ libunwind-1.1/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) \ Index: libunwind-1.1/src/aarch64/Gcreate_addr_space.c =================================================================== --- /dev/null +++ libunwind-1.1/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 +} Index: libunwind-1.1/src/aarch64/Gget_proc_info.c =================================================================== --- /dev/null +++ libunwind-1.1/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; +} Index: libunwind-1.1/src/aarch64/Gget_save_loc.c =================================================================== --- /dev/null +++ libunwind-1.1/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; +} Index: libunwind-1.1/src/aarch64/Gglobal.c =================================================================== --- /dev/null +++ libunwind-1.1/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); +} Index: libunwind-1.1/src/aarch64/Ginit.c =================================================================== --- /dev/null +++ libunwind-1.1/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[%x] <- %x\n", addr, *val); + *(unw_word_t *) addr = *val; + } + else + { + *val = *(unw_word_t *) addr; + Debug (16, "mem[%x] -> %x\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 <- %x\n", unw_regname (reg), *val); + } + else + { + *val = *(unw_word_t *) addr; + Debug (12, "%s -> %x\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 */ Index: libunwind-1.1/src/aarch64/Ginit_local.c =================================================================== --- /dev/null +++ libunwind-1.1/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 */ Index: libunwind-1.1/src/aarch64/Ginit_remote.c =================================================================== --- /dev/null +++ libunwind-1.1/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 */ +} Index: libunwind-1.1/src/aarch64/Gis_signal_frame.c =================================================================== --- /dev/null +++ libunwind-1.1/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 +} Index: libunwind-1.1/src/aarch64/Gregs.c =================================================================== --- /dev/null +++ libunwind-1.1/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; +} Index: libunwind-1.1/src/aarch64/Gresume.c =================================================================== --- /dev/null +++ libunwind-1.1/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) + ); + } + __builtin_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); +} Index: libunwind-1.1/src/aarch64/Gstep.c =================================================================== --- /dev/null +++ libunwind-1.1/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; +} Index: libunwind-1.1/src/aarch64/Lcreate_addr_space.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lget_proc_info.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lget_save_loc.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lglobal.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Linit.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Linit_local.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Linit_remote.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lis_signal_frame.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lregs.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lresume.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/Lstep.c =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/gen-offsets.c =================================================================== --- /dev/null +++ libunwind-1.1/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; +} Index: libunwind-1.1/src/aarch64/init.h =================================================================== --- /dev/null +++ libunwind-1.1/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; +} Index: libunwind-1.1/src/aarch64/is_fpreg.c =================================================================== --- /dev/null +++ libunwind-1.1/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); +} Index: libunwind-1.1/src/aarch64/offsets.h =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/regname.c =================================================================== --- /dev/null +++ libunwind-1.1/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 "???"; +} Index: libunwind-1.1/src/aarch64/siglongjmp.S =================================================================== --- /dev/null +++ libunwind-1.1/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 Index: libunwind-1.1/src/aarch64/unwind_i.h =================================================================== --- /dev/null +++ libunwind-1.1/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 */ Index: libunwind-1.1/src/coredump/_UCD_access_reg_linux.c =================================================================== --- libunwind-1.1.orig/src/coredump/_UCD_access_reg_linux.c +++ libunwind-1.1/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) Index: libunwind-1.1/src/ptrace/_UPT_reg_offset.c =================================================================== --- libunwind-1.1.orig/src/ptrace/_UPT_reg_offset.c +++ libunwind-1.1/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
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