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Author SHA1 Message Date
Konstantin Belousov 54f8b2fdbe Fill real offsets for freebsd 2010-03-11 00:02:24 +02:00
Konstantin Belousov d737709640 Close #if 2010-03-11 00:02:11 +02:00
Konstantin Belousov 47dcc89457 Remove unneeded braces 2010-03-10 23:51:59 +02:00
Konstantin Belousov 3b026a7ed8 Fix i386 distinctions between freebsd and linux for mcontext. 2010-03-10 23:51:09 +02:00
Konstantin Belousov bb41eba56c FreeBSD/i386 port. get/setcontext need further work 2010-03-09 18:01:25 +02:00
Konstantin Belousov c61e0b932c Add sys/types.h for x86. 2010-03-09 17:37:52 +02:00
Konstantin Belousov 71cbdc697f Provide real values for jmpbuf offsets for FreeBSD 2010-03-08 21:49:38 +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 4b3ca293bf Fix PT_SYSCALL ignoring of ip 2010-03-08 17:01:31 +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 ad932154a6 Port test-ptrace 2010-03-08 00:50:50 +02:00
Konstantin Belousov 093855f12a Remove unneeded includes of sys/types.h 2010-03-08 00:25:22 +02:00
Konstantin Belousov 64b5391b7b Include sys/types.h once 2010-03-08 00:24:32 +02:00
Konstantin Belousov da357e3c2e Revert "sys/types.h" 
This reverts commit 5976f1a5b3.
 2010-03-08 00:20:23 +02:00
Konstantin Belousov 53095e6b3e Code for resume 2010-03-07 23:43:07 +02:00
Konstantin Belousov c64723835c Support walk over freebsd sigframes 2010-03-07 21:53:01 +02:00
Konstantin Belousov d0d5f9979b Correct rsp offset 2010-03-07 21:20:43 +02:00
Konstantin Belousov efd0655ff4 Silence warning about symbol redefinition. 2010-03-07 17:27:41 +02:00
Konstantin Belousov 59d38aaccd Properly handle -ldl and -lutil 2010-03-07 12:46:05 +02:00
Konstantin Belousov d7eea91448 Cast caddr_t argument for ptrace 2010-03-07 12:27:03 +02:00
Konstantin Belousov 200147d0f2 Handle fpu state 2010-03-06 23:22:46 +02:00
Konstantin Belousov 62218e10eb Provide proper offsets for gregs in freebsd ucontext. Note that fp regs are not handled. 2010-03-06 22:33:11 +02:00
Konstantin Belousov 63ae8ca894 Correct assignments, remove unneeded includes. 2010-03-06 22:32:11 +02:00
Konstantin Belousov 4de09a9c15 Implement freebsd-specific vm walker. 2010-03-06 18:53:27 +02:00
Konstantin Belousov 81f2de0083 Add implementation of unw_is_signal_frame for freebsd. 2010-03-06 18:08:44 +02:00
Konstantin Belousov 1ba7599250 Add FreeBSD stub. 2010-03-06 17:54:51 +02:00
Konstantin Belousov 2646e0fde8 Add freebsd stub 2010-03-06 17:51:00 +02:00
Konstantin Belousov 5976f1a5b3 sys/types.h 2010-03-06 17:47:26 +02:00
Konstantin Belousov d7f5141075 MAP_ANONYMOUS 2010-03-06 16:46:52 +02:00
Konstantin Belousov 3eabce18b1 Include sys/types.h when needed. 2010-03-06 16:43:39 +02:00
Konstantin Belousov 29c110265f _NSIG. 2010-03-06 16:43:18 +02:00
Konstantin Belousov c7ffca11ae FreeBSD way to name registers. 2010-03-06 16:35:32 +02:00
Konstantin Belousov 8ccebc9307 MAP_ANONYMOUS 2010-03-06 16:23:24 +02:00
Konstantin Belousov 78cb28b4a6 PT_CONTINUE. 2010-03-06 16:20:47 +02:00
Konstantin Belousov d4a4ddd23d Provide access to the general regs on FreeBSD. 2010-03-06 16:17:21 +02:00
Konstantin Belousov cf6ae3548f Code to read/write user memory on FreeBSD 2010-03-06 15:04:56 +02:00
Konstantin Belousov d11456ffbf Code to read/write fpregs on FreeBSD 2010-03-06 14:55:11 +02:00
Konstantin Belousov 905034ce72 Initial attempt at the build infrastructure for FreeBSD. 2010-03-06 00:41:37 +02:00
Arun Sharma 46ea10680d Update documentation on building from git 2010-03-02 21:18:57 -08:00
Arun Sharma 3468a6b33d Change MS_SYNC to MS_ASYNC 
Hopefully this makes the address validation a bit cheaper.
 2010-02-23 10:35:47 -08:00
Stefan Demharter 752076789f Be gcc compatible for C++ exceptions on 32 bit platforms. 2010-02-21 22:45:08 -08:00
Arun Sharma 5a1d3c6fd7 Remove bogus check on scan_string which is guaranteed to fail every time. 2010-02-21 22:35:26 -08:00
Paul Pluzhnikov 54752e0df0 Implement getcontext for x86 
Greetings,

Attached patch implements getcontext for x86.

Motivation is the same as:
http://lists.nongnu.org/archive/html/libunwind-devel/2008-06/msg00009.html

This also fixes check-name-space on x86.

Tested on Linux/86 with no new failures.

Thanks,
--
Paul Pluzhnikov
 2009-12-23 09:59:52 -08:00
Paul Pluzhnikov 0cf76ed0b5 Check for NULL when validating addresses 
This is rather on the obvious side.

While doing strace on an executable using libunwind, I noticed a
lot of:

  msync(0, 1, MS_SYNC) = -1 ENOMEM (Cannot allocate memory)

Since we know that the first page isn't mapped (or at least doesn't
contain the data we are looking for), we can eliminate all such
msync calls.

Tested on Linux/x86_64 with no regressions.
 2009-12-01 13:59:45 -08:00
Paul Pluzhnikov 9626d66019 Fix a race condition in dwarf unwinding. 
Original code was accessing rs_cache memory without holding a lock
in some cases. If there was sufficient cache pressure, entry being
accessed may be overwritten by another thread, resulting in a data
race.

We now make a thread local copy of the data, before releasing the
lock. If we end up supporting UNW_CACHE_PER_THREAD properly
in the future, this memcpy should be unnecessary.
 2009-11-24 15:18:48 -08:00