m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2024-07-02 13:41:46 +02:00
Code Issues Releases Activity
2729 commits 9 branches 13 tags 5.8 MiB
Commit graph

1603 commits

Author SHA1 Message Date
Arun Sharma 516304a557 Revert "Use more convenience libraries" 
Breaks make check on both x86 (32 and 64 bit)

This reverts commit af88cab09f.
 2011-02-01 20:37:25 -08:00
Arun Sharma a83e96cc1c Some entries in /proc/<pid>/maps are not ELF files, so add check 
in elf_map_image() to ensure mapped files have a valid ELF header.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Signed-off-by: Arun Sharma <asharma@fb.com>
 2011-01-23 17:55:55 -08:00
Zachary T Welch 5007f8c794 Improve ELF valid_object() helper 
Ensures the ELF header version is valid.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2011-01-23 17:21:04 -08:00
Zachary T Welch af88cab09f Use more convenience libraries 
Eliminates obfuscating variables in favor of adding files directly
to library SOURCES.  Eliminates the need for EXTRA_DIST variable.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-29 11:29:01 -08:00
Zachary T Welch ce847afb3b Build ELF convenience libraries 
Rather than building the sources directly, create a library that
gets linked statically into libunwind.la and libunwind-$(arch).la.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-29 11:28:57 -08:00
Zachary T Welch 02dd6c468a Use noinst_HEADERS for distributing .h files 
Header files should be listed in a HEADERS automake declaration
rather than in the SOURCES.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-29 11:28:54 -08:00
Zachary T Welch 9de666d141 Simplify DWARF source handling 
Build DWARF source files into automake convenience libraries to
eliminate duplication in arch-dependent library build rules.
Adds a configure-time check to determine whether to use them.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-29 11:28:51 -08:00
Zachary T Welch b07829bedd Simplify LIBRARIES and LTLIBRARIES automake rules 
Use automake's '+=' to eliminate obfuscation.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-29 11:28:47 -08:00
Zachary T Welch 64a827603c Simplify libunwind_setjmp automake rules 
Eliminate redundant listing of libunwind_setjmp source files by
using automake's '+=' operator.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-29 11:28:44 -08:00
Zachary T Welch 651e9bb4fd Add MAINTAINERCLEANFILES to Makefile.am files. 
Ensures 'make maintainer-clean' removes files generated by autotools.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-08 09:06:09 -08:00
Zachary T Welch cf6a998796 Fix memory leak in ARM unw_create_addr_space() 
Frees newly created address space memory in the event of a failure
caused by an endian mismatch.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-08 09:03:34 -08:00
Sven Neumann 7909c71e5d [PATCH] Add files to EXTRA_DIST so that 'make dist' works again 2010-08-04 14:26:39 -07:00
Arun Sharma 99e60be5a4 Fix the page boundary crossing bug. 
Signed-off-by: Jason Evans <jasone@canonware.com>
 2010-06-08 14:44:07 -07:00
Konstantin Belousov b3757e7792 Restore the linking when --enable-debug-frame is not specified 2010-05-29 01:07:40 +03:00
Arun Sharma 00aed9631b Add an experimental and optional frame chain unwinding for ARM 
The environment variable UNW_ARM_UNWIND_METHOD controls the unwind method.

1 - debug_frame unwinding
2 - frame chain unwinding,
3 - 1 & 2 (default))

Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-26 19:28:44 -07:00
Arun Sharma 46e10c5abe Support .debug_frame based unwinding in _UPTi_find_unwind_table() 
Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-26 19:25:41 -07:00
Arun Sharma 546463d1e7 Factor out and export dwarf_find_debug_frame() function 
Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-26 19:21:30 -07:00
Konstantin Belousov 298e575f2c Fix freebsd build 2010-05-17 21:57:59 +03:00
Arun Sharma 8ee7b1762e Add ip argument to _UPTi_find_unwind_table. 
Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-15 12:15:49 -07:00
Arun Sharma 1787a2fd28 Add path and pathlen arguments to tdep_get_elf_image() 
Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-15 12:14:09 -07:00
Arun Sharma b115ab645a Ignore separate debug files which contain a .gnu_debuglink section. 
Current implementation fails to find separate debug symbols when
.gnu_debuglink is set to the same name of the target ELF basename
(e.g. "libc.so.6" for /lib/libc.so.6). This patch fixes this by ignoring
separate debug files that contain a .gnu_debuglink section.

It also fixes a small typo in a related Debug() line.

Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-15 11:57:35 -07:00
Arun Sharma 66b7335ff3 Adds missing register offsets for ARM 
Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-15 11:56:37 -07:00
Konstantin Belousov e1493dc011 Merge branch 'master' into freebsd 2010-05-03 17:59:50 +03:00
Arun Sharma aa3bb307a3 Fix merge errors 2010-05-03 07:47:41 -07:00
Konstantin Belousov c84005e9c8 Add unwind annotations for freebsd/x86 getcontext.S. 
Rearrange the code to put the slow branch out of main body,
and pinch the fixed amount of stack space to be able to annotate
the code.
 2010-05-02 17:06:24 +03:00
Konstantin Belousov b73c618a31 Merge branch 'master' into freebsd 2010-05-02 16:29:02 +03:00
Arun Sharma 0176c4f723 Merge commit 'fdc534ccb05d1e6c0438345d292203343a811701' 2010-04-28 17:27:38 -07:00
Arun Sharma fdc534ccb0 Silence a compiler warning 2010-04-28 16:38:27 -07:00
Arun Sharma 215afa30b7 Add unwind descriptors to getcontext.S 2010-04-28 16:32:30 -07:00
Arun Sharma c140d8598d Undo commit f252f5ff4e for now. 
Seems to introduce a couple of test breakages.
 2010-04-25 09:44:59 -07:00
Arun Sharma d3c4bc4295 Fix a compiler warning 2010-04-25 09:24:40 -07:00
Lassi Tuura 045c55b2a2 Be conservative in all pointer derefrences by default. 
Since most people can't completely control their compile or runtime
environment, it becomes hard to ensure that unwind data is perfect.
 2010-04-24 19:24:49 -07:00
Lassi Tuura d4fbc8326a Detect end of stack in x86-64 rbp-based walk. 2010-04-24 19:22:08 -07:00
Lassi Tuura 92cc7fd78a Remove obsolete code for 'old way' of handling x86-64 signal frames. 2010-04-24 19:21:52 -07:00
Lassi Tuura f252f5ff4e Recognise and unwind through PLT. 2010-04-24 19:21:26 -07:00
Lassi Tuura a9dce3c06e During the stack unwinding process, the return address points to 
the instruction after the call for a normal frame. libunwind uses
IP-1 to lookup unwind information. However, this is not necessary for
interrupted frames such as signal frames (or interrupt frames) in
the kernel context.

This patch handles both cases correctly.

Based on work by Mark Wielaard <mwielaard@redhat.com>
 2010-04-24 19:16:09 -07:00
Lassi Tuura 4c553ceb2c Identify end-of-stack by undefined return address location. 2010-04-24 17:18:31 -07:00
Lassi Tuura dac2d001af Identify signal frames by augmentation attribute. 2010-04-24 17:18:26 -07:00
Lassi Tuura 250382c56d Use wider format when printing addresses in debug format. 2010-04-24 17:18:19 -07:00
Konstantin Belousov 58f290e1ce Add config.h. 2010-04-21 15:43:05 +03:00
Konstantin Belousov 2709abc883 msync() also may be called on unaligned address. 2010-04-21 15:33:37 +03:00
Konstantin Belousov 4454413242 Account for possible unaligned access. 2010-04-21 15:18:02 +03:00
Konstantin Belousov ee99dbec87 Use mincore instead of msync when available 2010-04-20 17:45:18 +03:00
Konstantin Belousov 75b76d1f45 Save FPU context for i386. 2010-04-17 00:18:33 +03:00
Konstantin Belousov b1c68e060c Arrange the FreeBSD ucontext offset definitions in ascending order. 2010-04-17 00:17:58 +03:00
Giuseppe Scrivano a67654e86f [PATCH] Reduce scope of the eh_frame_end local variable 2010-04-14 12:11:29 -07:00
Arun Sharma 1d9c5a356d Fix compiler warnings on x86_64 Linux 2010-04-14 12:01:37 -07:00
Arun Sharma 5a70fab451 Fix compiler warnings on x86 Linux 2010-04-14 18:54:20 -07:00
Konstantin Belousov 127acf8e97 Use correct offset name and value for ucontext offset in struct sigframe 2010-04-14 12:15:05 +03:00
Konstantin Belousov 0d311ea161 Add abort() after sigreturn calls 2010-04-14 12:10:34 +03:00
Konstantin Belousov 34b064bf22 Fix typo. 2010-04-14 12:10:14 +03:00
Konstantin Belousov 1e77c66a51 Fix FreeBSD/x86_64 sigcontext restore 2010-04-14 12:04:28 +03:00
Konstantin Belousov 61f4345a9e Fix an issue where len was too short for sysctl to recieve the process 
vm map.
 2010-04-13 15:33:11 +03:00
Konstantin Belousov 02d0cb6f71 Do not save FPU context on x86 for now; XMM save area must be 16-bytes aligned 2010-04-13 14:20:22 +03:00
Konstantin Belousov ae7eebb839 Separate getcontext implementation for x86 2010-04-13 14:11:39 +03:00
Konstantin Belousov 66e49bdd41 Save %eax for i386 2010-04-13 13:55:23 +03:00
Konstantin Belousov 5a7407dd94 Merge branch 'master' into freebsd 2010-04-12 22:34:24 +03:00
Arun Sharma c2d78041cc GCC compatibility on x86 for C++ exception handling 2010-04-12 12:08:43 -07:00
Giuseppe Scrivano eb8857a324 Silence a compiler warning 2010-04-12 10:45:31 -07:00
Konstantin Belousov 843190597c Remove unneeded include. 
Noted by:	Arun Sharma
 2010-04-11 22:07:31 +03:00
Konstantin Belousov 21f0e90ce8 Rework 69001646fa, store sigframe address into sigcontext_addr. 2010-04-11 22:01:08 +03:00
Konstantin Belousov 42bc15c72c Provide proper register offsets in the gregset for FreeBSD/i386 2010-04-11 19:18:07 +03:00
Konstantin Belousov f10f851916 Add slightly more debug output 2010-04-11 14:59:36 +03:00
Konstantin Belousov e33fa9f73c Ditch using the libutil, it is not async-signal safe. 2010-04-11 14:36:24 +03:00
Konstantin Belousov 69001646fa Store the ucontext_t pointer to properly handle resume across signal frames. 2010-04-11 13:48:14 +03:00
Konstantin Belousov f01a043712 Convince gcc that x86_64_sigreturn cannot return, as declared. 2010-04-11 13:47:28 +03:00
Konstantin Belousov a688d6c4c9 Remove unused variable. 2010-04-10 18:51:17 +03:00
Konstantin Belousov dd1c7b6c1a Declare mxcsr as XMM 2010-04-10 18:48:35 +03:00
Konstantin Belousov 53f7e650e0 For FreeBSD/i386, add real offset values for FPU context fields. 2010-04-10 18:48:16 +03:00
Konstantin Belousov 6f7b335e89 Add my copyrights to several files that contain essential modifications 2010-04-10 01:42:26 +03:00
Konstantin Belousov 9fe75c7d93 Save FPU state when saving context. For XMM-capable CPUs only (for now). 2010-04-10 00:47:08 +03:00
Konstantin Belousov 117ccd246d Move all XMM offsets into one place. 2010-04-10 00:46:51 +03:00
Konstantin Belousov f6546e27ed Implement the base code to fetch x86/xmm state on x86. Offsets to be filled. 2010-04-10 00:40:39 +03:00
Konstantin Belousov 2c50c95cde Correct arguments for Debug(). 
Shut up warning by using the cast.
 2010-04-10 00:38:54 +03:00
Arun Sharma d1676f192e Fix warnings on 32 bit x86 2010-04-08 03:12:05 -07:00
Arun Sharma caa6095aec Fix compile errors on Linux 2010-04-07 19:59:06 -07:00
Konstantin Belousov 979af4502f Move local_resume to os-specific file. 2010-04-05 23:00:27 +03:00
Konstantin Belousov 0dbeeeb08d Move uc_addr to os-specific file 2010-04-05 22:42:23 +03:00
Konstantin Belousov 79d012348d Move get_scratch_loc() to os-specific file. 2010-04-05 22:22:55 +03:00
Konstantin Belousov aeee03dd74 Reduce diffs to master 2010-04-05 16:28:46 +03:00
Konstantin Belousov ccc0ae665b More move of osdep code. 2010-04-05 16:25:36 +03:00
Konstantin Belousov a40641f326 Trim spaces 2010-04-05 16:25:20 +03:00
Konstantin Belousov fd88f41818 Merge remote branch 'origin/master' into freebsd 
Conflicts:
	src/x86/Gis_signal_frame.c
	src/x86/Gstep.c
	src/x86_64/Gis_signal_frame.c
	src/x86_64/Gstep.c
 2010-04-05 16:14:50 +03:00
Arun Sharma 8e53e62db9 Refactor os specific code for x86 (both 32 and 64 bit). 
Move Linux specific code into ${arch}/Gos-linux.c
 2010-04-04 16:46:13 -07:00
Konstantin Belousov 980ccffe9e Merge remote branch 'origin/master' into freebsd 
Conflicts:
	src/x86/Gis_signal_frame.c
 2010-04-04 12:44:10 +03:00
Arun Sharma 2b7ca45acc Fix handling of SA_SIGINFO frames on 32 bit x86 
Submitted by: Arne de Bruijn <mail@arnedebruijn.nl>
 2010-04-03 16:49:18 -07:00
Konstantin Belousov bd2798805a Reformat os-freebsd.c. 2010-04-03 23:29:28 +03:00
Konstantin Belousov 5715d912f4 Make setjmp/longjmp work at least on FreeBSD/amd64. 
FreeBSD-supplied setjmp() saves incremented stack pointer into jmpbuf.

I have no idea whether siglongjmp ever worked on amd64, since
UNW_NUM_EH_REGS == 2 and abort at siglongjmp.c:81 is firing.
 2010-04-03 19:02:43 +03:00
Konstantin Belousov 31ece3eaa1 Fix setcontext for amd64 freebsd 2010-04-03 18:28:31 +03:00
Konstantin Belousov 9bb9c972e6 Merge with origin/master 2010-03-31 16:01:38 +03:00
Arun Sharma 6203f1cd0f Cleanup a mapped elf image. 
Without this, we end up with mmap leaks. Thanks to Humberto Abdelnur
for suggesting this.
 2010-03-26 15:54:14 -07:00
Arun Sharma 7bd264e292 Fix up what looks like an unintentional semi colon. 
Thanks to Lassi Tuura for noticing it.
 2010-03-23 10:37:21 -07:00
Konstantin Belousov 8a75ba971a Signal trampoline on amd64 for ia32 is special. 2010-03-13 21:26:50 +02:00
Konstantin Belousov e51429280b Handle error return from is_signal_frame 2010-03-13 20:31:12 +02:00
Konstantin Belousov e9cd30040e Move x86 porting further. 2010-03-13 20:28:12 +02:00
Konstantin Belousov 71c4161247 Remove extra empty line 2010-03-13 18:33:22 +02:00
Arun Sharma f8a15e9679 Fix a couple of test breakages on x86_64 
setcontext() now restores the signal mask. Also remove a check
in the test that doesn't seem to be valid.
 2010-03-10 22:52:12 -08:00
Konstantin Belousov a6b23dcb0c Add partial implementation for is_signal_frame for i386. 2010-03-11 00:50:40 +02:00
Konstantin Belousov 54f8b2fdbe Fill real offsets for freebsd 2010-03-11 00:02:24 +02:00
Konstantin Belousov 47dcc89457 Remove unneeded braces 2010-03-10 23:51:59 +02:00