m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2024-12-01 10:47:38 +01:00
Code Issues Releases Activity

New libunwind is ported on solaris

Browse source
This commit is contained in:
Alexander Esilevich 2010-10-25 18:44:19 -07:00
parent 44cb8e68d8
commit 24176a0073
8 changed files with 262 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/dwarf.h
View file

@ -366,8 +366,10 @@ extern int dwarf_init (void);
extern int dwarf_find_proc_info (unw_addr_space_t as, unw_word_t ip,
unw_proc_info_t *pi,
int need_unwind_info, void *arg);
#ifdef CONFIG_DEBUG_FRAME
extern int dwarf_find_debug_frame (int found, unw_dyn_info_t *di_debug,
struct dl_phdr_info *info, unw_word_t ip);
#endif // CONFIG_DEBUG_FRAME
extern int dwarf_search_unwind_table (unw_addr_space_t as,
unw_word_t ip,
unw_dyn_info_t *di,

22
src/CMakeLists.txt
View file

@ -3,7 +3,6 @@
include(config.cmake)
set(libunwind_sources_common
os-linux.c
mi/init.c
mi/flush_cache.c
mi/mempool.c
@ -53,6 +52,14 @@ set(libunwind_sources_common
dwarf/Lfind_proc_info-lsb.c
)
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
list(APPEND libunwind_sources_common os-linux.c)
elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
list(APPEND libunwind_sources_common os-solaris.c)
endif()
set(libunwind_sources_x8664_32
elf32.c
x86/is_fpreg.c
@ -72,15 +79,16 @@ set(libunwind_sources_x8664_32
x86/Los-linux.c
)
string(REPLACE " " ";" c_flags "${CMAKE_C_FLAGS}")
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/getcontext.o
COMMAND ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS}
COMMAND ${CMAKE_C_COMPILER} ${c_flags}
-c ${CMAKE_CURRENT_SOURCE_DIR}/x86_64/getcontext.S
-o ${CMAKE_CURRENT_BINARY_DIR}/getcontext.o
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/x86_64/getcontext.S)
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/setcontext.o
COMMAND ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS}
COMMAND ${CMAKE_C_COMPILER} ${c_flags}
-c ${CMAKE_CURRENT_SOURCE_DIR}/x86_64/setcontext.S
-o ${CMAKE_CURRENT_BINARY_DIR}/setcontext.o
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/x86_64/setcontext.S)
@ -102,10 +110,16 @@ set(libunwind_sources_x8664_64
x86_64/Lstep.c
${CMAKE_CURRENT_BINARY_DIR}/getcontext.o
${CMAKE_CURRENT_BINARY_DIR}/setcontext.o
x86_64/Los-linux.c
)
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
list(APPEND libunwind_sources_x8664_64 x86_64/Los-linux.c)
elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
list(APPEND libunwind_sources_x8664_64 x86_64/Los-solaris.c)
endif()
add_definitions(-DHAVE_CONFIG_H
-D_GNU_SOURCE
-fPIC

67
src/os-solaris.c Normal file
View file

@ -0,0 +1,67 @@
/* libunwind - a platform-independent unwind library
Copyright (C) 2003-2005 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.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. */
#ifndef UNW_REMOTE_ONLY
#include <limits.h>
#include <stdio.h>
#include "libunwind_i.h"
#include "os-linux.h"
PROTECTED 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)
{
struct map_iterator mi;
int found = 0, rc;
unsigned long hi;
if (maps_init (&mi, pid) < 0)
return -1;
while (maps_next (&mi, segbase, &hi, mapoff))
if (ip >= *segbase && ip < hi)
{
found = 1;
break;
}
if (!found)
{
maps_close (&mi);
return -1;
}
if (path)
{
strncpy(path, mi.path, pathlen);
}
rc = elf_map_image (ei, mi.path);
maps_close (&mi);
return rc;
}
#endif /* UNW_REMOTE_ONLY */

157
src/x86_64/Gos-solaris.c Normal file
View file

@ -0,0 +1,157 @@
/* libunwind - a platform-independent unwind library
Copyright (C) 2002-2003 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
Modified for x86_64 by Max Asbock <masbock@us.ibm.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 "ucontext_i.h"
#include <sys/syscall.h>
#if 0
HIDDEN void
tdep_fetch_frame (struct dwarf_cursor *dw, unw_word_t ip, int need_unwind_info)
{
struct cursor *c = (struct cursor *) dw;
assert(! need_unwind_info || dw->pi_valid);
assert(! need_unwind_info || dw->pi.unwind_info);
if (dw->pi_valid
&& dw->pi.unwind_info
&& ((struct dwarf_cie_info *) dw->pi.unwind_info)->signal_frame)
{
c->sigcontext_format = X86_64_SCF_LINUX_RT_SIGFRAME;
c->sigcontext_addr = dw->cfa;
}
else
{
c->sigcontext_format = X86_64_SCF_NONE;
c->sigcontext_addr = 0;
}
Debug(15, "fetch frame ip=0x%lx cfa=0x%lx format=%d addr=0x%lx\n",
dw->ip, dw->cfa, c->sigcontext_format, c->sigcontext_addr);
}
HIDDEN void
tdep_cache_frame (struct dwarf_cursor *dw, struct dwarf_reg_state *rs)
{
struct cursor *c = (struct cursor *) dw;
rs->signal_frame = c->sigcontext_format;
Debug(15, "cache frame ip=0x%lx cfa=0x%lx format=%d addr=0x%lx\n",
dw->ip, dw->cfa, c->sigcontext_format, c->sigcontext_addr);
}
HIDDEN void
tdep_reuse_frame (struct dwarf_cursor *dw, struct dwarf_reg_state *rs)
{
struct cursor *c = (struct cursor *) dw;
c->sigcontext_format = rs->signal_frame;
if (c->sigcontext_format == X86_64_SCF_LINUX_RT_SIGFRAME)
c->sigcontext_addr = dw->cfa;
else
c->sigcontext_addr = 0;
Debug(15, "reuse frame ip=0x%lx cfa=0x%lx format=%d addr=0x%lx\n",
dw->ip, dw->cfa, c->sigcontext_format, c->sigcontext_addr);
}
#endif
PROTECTED int
unw_is_signal_frame (unw_cursor_t *cursor)
{
struct cursor *c = (struct cursor *) cursor;
return c->sigcontext_format != X86_64_SCF_NONE;
}
PROTECTED int
unw_handle_signal_frame (unw_cursor_t *cursor)
{
#if UNW_DEBUG /* To silence compiler warnings */
/* Should not get here because we now use kernel-provided dwarf
information for the signal trampoline and dwarf_step() works.
Hence dwarf_step() should never call this function. Maybe
restore old non-dwarf signal handling here, but then the
gating on unw_is_signal_frame() needs to be removed. */
struct cursor *c = (struct cursor *) cursor;
Debug(1, "old format signal frame? format=%d addr=0x%lx cfa=0x%lx\n",
c->sigcontext_format, c->sigcontext_addr, c->dwarf.cfa);
assert(c->sigcontext_format == X86_64_SCF_LINUX_RT_SIGFRAME);
assert(c->sigcontext_addr == c->dwarf.cfa);
assert(0);
#endif
return 1;
}
#ifndef UNW_REMOTE_ONLY
HIDDEN void *
x86_64_r_uc_addr (ucontext_t *uc, int reg)
{
void *addr;
switch (reg)
{
case UNW_X86_64_R8: addr = &uc->uc_mcontext.gregs[REG_R8]; break;
case UNW_X86_64_R9: addr = &uc->uc_mcontext.gregs[REG_R9]; break;
case UNW_X86_64_R10: addr = &uc->uc_mcontext.gregs[REG_R10]; break;
case UNW_X86_64_R11: addr = &uc->uc_mcontext.gregs[REG_R11]; break;
case UNW_X86_64_R12: addr = &uc->uc_mcontext.gregs[REG_R12]; break;
case UNW_X86_64_R13: addr = &uc->uc_mcontext.gregs[REG_R13]; break;
case UNW_X86_64_R14: addr = &uc->uc_mcontext.gregs[REG_R14]; break;
case UNW_X86_64_R15: addr = &uc->uc_mcontext.gregs[REG_R15]; break;
case UNW_X86_64_RDI: addr = &uc->uc_mcontext.gregs[REG_RDI]; break;
case UNW_X86_64_RSI: addr = &uc->uc_mcontext.gregs[REG_RSI]; break;
case UNW_X86_64_RBP: addr = &uc->uc_mcontext.gregs[REG_RBP]; break;
case UNW_X86_64_RBX: addr = &uc->uc_mcontext.gregs[REG_RBX]; break;
case UNW_X86_64_RDX: addr = &uc->uc_mcontext.gregs[REG_RDX]; break;
case UNW_X86_64_RAX: addr = &uc->uc_mcontext.gregs[REG_RAX]; break;
case UNW_X86_64_RCX: addr = &uc->uc_mcontext.gregs[REG_RCX]; break;
case UNW_X86_64_RSP: addr = &uc->uc_mcontext.gregs[REG_RSP]; break;
case UNW_X86_64_RIP: addr = &uc->uc_mcontext.gregs[REG_RIP]; break;
default:
addr = NULL;
}
return addr;
}
/* sigreturn() is a no-op on x86_64 glibc. */
HIDDEN NORETURN void
x86_64_sigreturn (unw_cursor_t *cursor)
{
/* struct cursor *c = (struct cursor *) cursor;
struct sigcontext *sc = (struct sigcontext *) c->sigcontext_addr;
Debug (8, "resuming at ip=%llx via sigreturn(%p)\n",
(unsigned long long) c->dwarf.ip, sc);
__asm__ __volatile__ ("mov %0, %%rsp;"
"mov %1, %%rax;"
"syscall"
:: "r"(sc), "i"(SYS_rt_sigreturn)
: "memory");*/
abort();
}
#endif

5
src/x86_64/Los-solaris.c Normal file
View file

@ -0,0 +1,5 @@
#define UNW_LOCAL_ONLY
#include <libunwind.h>
#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
#include "Gos-solaris.c"
#endif

2
src/x86_64/getcontext.S
View file

@ -57,7 +57,7 @@ _Ux86_64_getcontext:
movq %rax, UC_MCONTEXT_GREGS_RAX(%rdi)
movq %rcx, UC_MCONTEXT_GREGS_RCX(%rdi)
#if defined __linux__
#if defined(__linux__) || defined(__sun__)
/* Save fp state (not needed, except for setcontext not
restoring garbage). */
leaq UC_MCONTEXT_FPREGS_MEM(%rdi),%r8

13
src/x86_64/setcontext.S
View file

@ -28,6 +28,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#if defined __linux__
#include <asm/unistd.h>
#define SIG_SETMASK 2
#elif defined __sun__
#define SYS_sigprocmask 95
#define SIG_SETMASK 3
#define SIGSET_BYTE_SIZE (64/8)
#elif defined __FreeBSD__
#include <sys/syscall.h>
@ -44,15 +47,21 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
_Ux86_64_setcontext:
#if defined __linux__
#if defined(__linux__) || defined(__sun__)
/* restore signal mask
sigprocmask(SIG_SETMASK, ucp->uc_sigmask, NULL, sizeof(sigset_t)) */
push %rdi
#ifdef __linux__
mov $__NR_rt_sigprocmask, %rax
#elif defined(__sun__)
mov $SYS_sigprocmask, %rax
#else
#error Port me
#endif
lea UC_SIGMASK(%rdi), %rsi
mov $SIG_SETMASK, %rdi
xor %rdx, %rdx
mov $SIGSET_BYTE_SIZE, %r10
mov $8 , %r10
syscall
pop %rdi

1
src/x86_64/ucontext_i.h
View file

@ -98,6 +98,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#define UC_MCONTEXT_GREGS_RIP 0xc8
#define UC_MCONTEXT_FPREGS_MEM 0x120
#define FPREGS_OFFSET_MXCSR 0x18
#define UC_SIGMASK 0x128
#else
#error "Define fields offsets in ucontext structure for your platform"
#endif // __sun