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Author SHA1 Message Date
Zachary T Welch 3ac945b7ee Improve debug-frame configure option default 
Ensure that --enable-debug-frame is set automatically when building
libunwind for an ARM target.  Other targets continue to have
--disable-debug-frame as the default setting.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-08 09:05:55 -08:00
Zachary T Welch 574873ca6e Improve configure check reporting. 
Adds numerous AC_MSG_CHECKING and AC_MSG_RESULT pairings for
configuration tests that were previously unreported.  Relocates
the debug configuration to the same part of the file as the command
line option declaration for associative clarity.  Makes it easier
to confirm the resultant configuration matches original intentions.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-08 09:03:38 -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
Zachary T Welch 10afcf3896 Remove duplicate check for PTRACE_CONT 
This symbol was being checked twice during configuration.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-08 09:03:30 -08:00
Zachary T Welch c9e378b281 Add .gitignore file 
Improves quality of 'git status'.  Use 'git ls-files -o' to see all
untracked files.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-11-08 09:03:24 -08:00
Zachary T Welch 92345bf752 Fix PTRACE_SINGLESTEP typo. 
Use correct spelling of PTRACE_SINGLESTEP symbol, so test suite
coverage works as intended.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
 2010-10-25 11:20:39 -07:00
Arun Sharma 982d590ddb Add Gtest-nomalloc.c to EXTRA_DIST so we pass "make check" 2010-08-04 15:11:19 -07:00
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 74677edb23 Reverse local change 2010-04-20 17:54:16 +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