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1469 commits

Author SHA1 Message Date
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
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 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 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 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 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