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Author SHA1 Message Date
Ken Werner
b317cb4829 Change libunwind-ptrace to also look for .debug_frame if nothing found in .eh_frame. 
This changes the behavior of libunwind-ptrace to what we do for local
unwinding.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-08-15 20:12:54 +02:00
Ken Werner
545023c207 Rework the lookup of the ARM specific unwind info 
Implement routines for finding the proc_info and searching the unwind table
for the ARM backend.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-08-15 20:12:54 +02:00
Ken Werner
0b9f591823 Make the dwarf dl_iterate_phdr callback available within libunwind. 
Rename the dwarf dl_iterate_phdr callback routine and the callback_data
structure to dwarf_callback and dwarf_callback_data. Make it available
within libunwind by declaring the two at the dwarf.h header file.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-08-15 20:12:54 +02:00
Ken Werner
25f6b8295d Change address type from void* to unw_word_t. 
Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-07-28 11:10:02 +00:00
Ken Werner
b28335b5a5 Fix inline assembly. 
Remove the third colon if the clobber list is not present.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-06-30 12:36:44 +02:00
Arun Sharma
e09f9701ff Handle register nums > 16 on x86_64 
gcc generates them when using ms-abi. Support disabled by
default since it increases the cache footprint of the library.
 2011-06-18 20:48:49 -07:00
Joel Brobecker
7d43108f9c No libunwind-generic.so if configured with --disable-shared 
Installing a libunwind that was configured with --disable-shared
results in a broken libunwind-generic.so link. This patch avoids
this broken link.
 2011-06-18 19:50:39 -07:00
Joel Brobecker
ea7160a841 Remove unintended semi-colon in os-hpux.c fun definition 
Probably a copy/paste error... This showed up on ia64-hpux.
 2011-06-18 19:50:35 -07:00
Joel Brobecker
8d991d9258 Fix call to maps_next in _UPT_get_dyn_info_list_addr.c 
A previous change reduced the number of arguments that this function
tasks, but one call at least did not get updated, resulting in a build
failure on ia64-linux.  This patch fixes it.
 2011-06-18 19:50:31 -07:00
Joel Brobecker
e003e44a37 Check for <sys/ptrace.h> before including it 
On ia64-hpux version 11.31, <sys/ptrace.h> has been removed.
This patch adds a configure check for this header file, and only
includes <sys/ptrace.h> if it exists.
 2011-06-18 19:50:28 -07:00
Lassi Tuura
d2525ec936 Use single level hash table for fast trace. 2011-05-06 22:09:07 -07:00
Lassi Tuura
5c2cade264 Inline access to initial register values as it's known to be safe. 2011-05-06 20:19:36 -07:00
Ken Werner
36511d3d1f Add support for handling signal frames on ARM Linux. 
This patch add support for resuming at a certain stack frame even if signal
frames are involved. For restoring the registers the trampoline (sigreturn)
is used. RT and non-RT signal frames are handled for both >=2.6.18 and
<2.6.18 kernels.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-05-03 20:18:40 +02:00
Ken Werner
9533ea1a6a Add support for RT signal frame detection on ARM. 
This patch adds a few more patterns to the check that detects if the IP
points to a sigreturn sequence.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-05-03 20:18:33 +02:00
Ken Werner
1e10c2931d Add initial support for local unw_resume on ARM Linux. 
Provides basic support for resuming execution at a certain stack frame.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-04-21 17:25:42 +02:00
Lassi Tuura
ae5c1f2adf Performance optimisations for fast trace. 
Insert static branch prediction predicates in useful places and avoid
unnecessary code in the hottest paths. Bypass unnecessary indirect
calls, in particular to access_mem(), when known to be safe.
 2011-04-17 20:34:38 -07:00
Arun Sharma
e2962af9d3 Implement a cheaper getcontext() 
Since the fast unwinding code path doesn't need the full context,
a faster target dependent getcontext is implemented.

Signed-off-by: Lassi Tuura <lat@cern.ch>
 2011-04-05 22:07:05 -07:00
Arun Sharma
15f182828d Use __thread instead of pthread_getspecific() 2011-04-05 22:06:51 -07:00
Ken Werner
fd21d07fe4 Create a generic and local variant of the extbl parser. 
In order to have the DWARF_* macros working properly a generic and a local
variant of the ex_tables.c have been created.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-04-05 20:59:10 -07:00
Lassi Tuura
5f38f35d5d Drop a call frame in tdep_trace and avoid a call to unw_step. 
Dropping the extra frame for unw_backtrace itself using unw_step is
approximately 15% slower than skipping the frame in tdep_trace.  So
drop the frame in the latter, and make the function a private
implementation detail for libunwind, not an exported interface.

Also moves unw_getcontext call back into unw_backtrace to avoid an
extra call frame in case slow_backtrace does not get inlined into
unw_backtrace.
 2011-04-01 00:00:39 -07:00
Lassi Tuura
50bc12afba Export unw_backtrace() and alias backtrace() to it. 2011-04-01 00:00:33 -07:00
Arun Sharma
2f9b04e9c2 Mark slow_backtrace() ALWAYS_INLINE 
Also fix Makefile.am so remote unwinding tests such Gtest-trace
don't link with the local unwind library (libunwind.a).
 2011-03-31 22:58:07 -07:00
Lassi Tuura
3b9fd99cb7 Assign copyright as requested by the author. 2011-03-25 00:20:49 -07:00
Lassi Tuura
f1ea02be58 Reset 'used' to zero after expanding frame cache hash table. 2011-03-25 00:20:48 -07:00
Arun Sharma
7ff83c051e Fix up compilation and test failures 2011-03-24 23:32:25 -07:00
Lassi Tuura
44a14d1364 Integrate fast trace into backtrace(). 2011-03-24 22:33:55 -07:00
Lassi Tuura
9e98f15e9a Fast back-trace for x86_64 for only collecting the call stack. 
Adds new function to perform a pure stack walk without unwinding,
functionally similar to backtrace() but accelerated by an address
attribute cache the caller maintains across calls.
 2011-03-24 22:33:17 -07:00
Lassi Tuura
28f33c8ce0 Auto-detect whether to use msync() or mincore() for address validation. 2011-03-24 21:02:28 -07:00
Ken Werner
0f9937485e ARM: Return the dwarf.cfa in case the user requests SP/R13. 
Usually we don't have a valid location for the SP but we keep calculating
the value of the CFA. The ARM backend should return this value instead.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:44:33 -07:00
Ken Werner
f053677198 Remove the ARM_EXIDX_TABLE_MALLOC code path. 
Using malloc is not an option since unw_init_local and unw_step are supposed
to be async signal safe. Therefore this code path can be removed.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:44:33 -07:00
Ken Werner
6296ff1fb2 Remove the appname string of the ARM extbl parser. 
There is no need for libunwind to set/fake a name of the elf file from which
the program header came from.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:44:33 -07:00
Ken Werner
dcb8d0d90f Prefer to unwind using DWARF info on ARM. 
DWARF expressions are more powerful than the ARM specific unwind tables.
Therefore DWARF should be the preferred unwind method.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:44:33 -07:00
Ken Werner
fb325c895e ARM extbl cleanup. 
Move code that does not necessarily need to reside in the ex_tables.h header
file into ex_tables.c. Add comments and remove unused code.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:44:25 -07:00
Ken Werner
cf8d5e41af Have the ARM extbtl-parser operate on the DWARF model directly. 
This eliminates the arm_stackframe and therefore the need to synchronize the
two models. It also clears the way for unwinding call stacks with mixed
DWARF- and extbl-frames.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:42:00 -07:00
Konstantin Belousov
04fc88fa31 Fix build and distribution on the FreeBSD. 
Signed-off-by: Konstantin Belousov <kostikbel@gmail.com>
 2011-03-24 20:41:07 -07:00
Arun Sharma
0613d4c680 Fixup trailing whitespace 
Signed-off-by: Arun Sharma <asharma@fb.com>
 2011-03-22 08:40:49 -07:00
Zachary T Welch
6a67154674 Use ARM-specific unwinding tables in unw_step 
Uses ex_tables routines to provide a new means of unwinding the stack.
Set UNW_ARM_UNWIND_METHOD=4 to use ARM-specific unwinding tables.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-22 08:14:58 -07:00
Zachary T Welch
ffc474b8c8 Add module for parsing ARM-specific unwind tables 
Handles lookup, extracting unwind entries, and decoding the entry
using a callback mechanism.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-22 08:14:51 -07:00
Zachary T Welch
049e2ba1b9 Add ARM signal frame detection 
Implements a check for call to sigreturn that the kernel will have
setup before jumping to the signal handler.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-22 08:14:45 -07:00
Zachary T Welch
6a072982dd Fix file descriptor leakage in maps_init 
If mmap fails, be sure to close the maps file before returning an error.

Signed-off-by: Zachary T Welch <zwelch@codesourcery.com>
Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-07 21:24:51 -08:00
Ken Werner
4a89b88fd3 Link libunwind-setjmp against libunwind-elf. 
This prevents the linker from complaining about a missing symbol when
building the test-setjmp test case.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-07 21:24:51 -08:00
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
Konstantin Belousov
bb41eba56c FreeBSD/i386 port. get/setcontext need further work 2010-03-09 18:01:25 +02:00
Konstantin Belousov
9f79621a29 Enough for now for ptrace backend 2010-03-08 20:55:50 +02:00
Konstantin Belousov
752ce15c4f Preliminary version of freebsd syscall unwinder 2010-03-08 19:45:54 +02:00
Konstantin Belousov
c1b1c10cfc Fix memory leak on error 2010-03-08 18:48:27 +02:00
Konstantin Belousov
89e1df2d32 Fix _UI_siglongjmp_cont name 2010-03-08 15:55:29 +02:00
Konstantin Belousov
0f1c0f5f66 Fix resume. 2010-03-08 15:51:39 +02:00
Konstantin Belousov
43ed5b3e56 Add required assembler magic. 2010-03-08 00:57:50 +02:00
Konstantin Belousov
5f5b1a5daa tdep_get_elf_image should be public 2010-03-08 00:52:26 +02:00
Konstantin Belousov
093855f12a Remove unneeded includes of sys/types.h 2010-03-08 00:25:22 +02:00