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52 Commits

Author SHA1 Message Date
gbeauche
30632aed4f Happy New Year! 2005-01-30 21:42:16 +00:00
gbeauche
09d6712bdb Fixes for NetBSD 2.0 2005-01-04 23:38:01 +00:00
gbeauche
c10046c137 Check that we can really read at the faulty eip in Windows prior to decoding 
the instruction. Also fix the unrecoverable fault dump to really be useful.
 2004-12-11 13:07:38 +00:00
gbeauche
0e52edfbd0 ppc64 fixes 2004-12-02 23:29:52 +00:00
gbeauche
68083d1102 Integrate SIGSEGV recovery from libsigsegv for Windows and Cygwin. 
Also implement instruction skipper for Windows/x86.
 2004-11-13 23:44:11 +00:00
gbeauche
815390707a Decode MOVSX r32, r/m16 (generated by icc v8.0 on x86) 2004-02-16 16:02:48 +00:00
gbeauche
93c472ec0a cosmetic fixes when printing movsbq operation summary 2004-01-22 00:00:55 +00:00
gbeauche
7a0681c44b handle (skip) x86 movsbl instructions 2004-01-21 23:50:06 +00:00
gbeauche
1a6c128ab2 Summary: possible support of SheepShaver on Zaurus PDAs 
Add Linux/ARM instruction skipping, includes support for ARMv4+ halfword
and signed data transfer instructions. Note that load/store multiple are
not handled and someone has to make sure post-incr/write-back logic is
correctly implemented.
 2004-01-21 23:14:28 +00:00
nigel
2208c5460b Added missing switch value to eliminate a warning 2004-01-20 23:49:32 +00:00
gbeauche
d09df6d1fa ARM/linux sigsegv handler. Instruction skipper yet to be written for 
happy Zaurus owners.
 2004-01-19 16:59:13 +00:00
cebix
9e7932abf0 Happy New Year! :) 2004-01-12 15:29:31 +00:00
gbeauche
c48515b6d5 Instruction skipper for Solaris/SPARC. 2003-12-20 23:22:25 +00:00
gbeauche
47f64bdcb8 Add support for Linux/hppa, FreeBSD/alpha. Misc debugging output. 2003-12-20 21:50:08 +00:00
gbeauche
9b99a095f0 MIPS instruction skipper. TODO: check LWL/LWR semantics. 2003-12-20 10:06:18 +00:00
gbeauche
fdf5970c28 Fix subterfuge mode on IRIX/mips. Get PC in both modes for Irix too 2003-12-20 07:43:56 +00:00
gbeauche
d4ad77d734 really fix writes to byte registers 2003-11-11 00:10:39 +00:00
gbeauche
4bce0876c0 fix configure tests. i.e. move up arch_insn_skipper_tests() 2003-11-10 23:54:31 +00:00
gbeauche
1169001df7 Extend x86 instruction skipper to AMD64. Add plenty of arch dependent 
opcodes to test it. Also fix DEBUG output & writes (zero'ing) to %xH regs
 2003-11-10 23:47:39 +00:00
gbeauche
9057fda327 - FreeBSD/i386 sigcontext subterfuge support for instruction skipper 
- NetBSD/alpha support from Boehm GC
- NetBSD/i386 won't work in sigcontext subterfuge mode unless instruction
  is decoded more accurately to compute the effective address. Also note
  that NetBSD 1.6 does not support siginfo_t yet.
 2003-10-21 23:10:19 +00:00
gbeauche
f8a0f363ea Solaris/SPARC support for SIGSEGV_FAULT_INSTRUCTION 2003-10-21 21:59:41 +00:00
gbeauche
75df809ff7 fix merge with Mach exception filters, we have preconditions to check 2003-10-13 20:15:41 +00:00
gbeauche
6a60d56bf2 indentation fixes, optimize handle_badaccess() to receive only necessary 
data and don't copy a struct sigcontext again on x86.
 2003-10-13 19:56:17 +00:00
gbeauche
14b51b9519 return something more convenient to debug on errors 2003-10-13 19:43:09 +00:00
gbeauche
46dc8c5391 Make sure reported fault instruction address falls into the expected code 
range. This is a configure-time safety net that depends on the GCC "Labels
as Values" extension.
 2003-10-12 21:41:19 +00:00
gbeauche
cf3d36a3a7 Mach memory fault recovery from Michael Z. Sliczniak 2003-10-12 21:15:52 +00:00
gbeauche
23c4ebcdf3 really fix typo! 2003-09-29 08:04:22 +00:00
gbeauche
aa61c47591 fix typo 2003-09-29 08:02:04 +00:00
gbeauche
a48a804c15 New SIGSEGV API so that skip-instruction requests are more explicit. Yes, 
that's api change, but that's cooler now for SheepShaver. ;-)
 2003-09-29 07:02:58 +00:00
gbeauche
ac027954dc Bring x86 instruction skipper back to life 2003-08-17 10:52:52 +00:00
gbeauche
deb3da2e9f New API to ignore a SIGSEGV fault. This should help on SheepShaver/x86 for now 
since I still don't know why MacOS would like to write to ROM on a particular
test.
 2003-05-14 06:50:05 +00:00
gbeauche
177cdee820 configure script is reportedly no longer crashing on FreeBSD when 
SIGSEGV_SKIP_INSTRUCTION is set.
 2002-10-03 15:49:14 +00:00
gbeauche
281460fba0 - New arch support for IP retrieval on SIGSEGV. 2002-07-17 06:51:05 +00:00
gbeauche
69847c3ea2 Correctly guard FreeBSD bits 2002-06-27 14:28:59 +00:00
gbeauche
d7c4d7afbf Backout "ignoresegv" support on FreeBSD/x86 for now. Unfortunately, the 
configure script would hang whereas standalone testing will pass all tests.
Any idea why??
- Unix/sigsegv.cpp (ix86_skip_instruction): Add decoder for mozbl instruction.
  (SIGSEGV_REGISTER_FILE [FreeBSD/x86]): Note why we start at EDI offset
  rather than plain sigcontext pointer. i.e. I don't know sigset_t size
  beforehand and don't intend to.
 2002-05-20 18:12:01 +00:00
gbeauche
2bd9ee71e8 Implement "ignoresegv" feature on FreeBSD/x86 (tested on FreeBSD 4.5) 
- sigsegv.cpp (ix86_skip_instruction): Add decoder for movzwl instructions.
  (main): oddly, FreeBSD doesn't seem to let a write to a page if it is
  write-only. Aka. make the page readable too.
 2002-05-20 17:49:04 +00:00
gbeauche
ae93f1e0d8 - Fix compilation on Linux/x86 with SIGCONTEXT_SUBTERFUGE 2002-05-20 16:03:37 +00:00
gbeauche
c2d3d08a7a - sigsegv.cpp (ix86_skip_instruction): Fix DEBUG compilation. 2002-05-20 16:00:07 +00:00
gbeauche
e81b9ace6d Implement "ignoresegv" feature on Darwin/ppc (tested on MacOS X) 
- Unix/sigsegv.cpp (powerpc_decode_instruction): New.
  (get_fault_instruction [MacOS X]): Factorize code.
  (get_fault_instruction [Linux/m68k]): Don't use expression statement.
- README (ignoresegv): Add Darwin/ppc to list of supported platforms.
 2002-05-20 15:56:13 +00:00
gbeauche
c47819020c Implement "ignoresegv" feature on Linux/ppc: 
- Unix/sigsegv.cpp (powerpc_skip_instruction): New from SheepShaver code.
- README (ignoresegv): Add Linux/ppc to list of supported platforms.
 2002-05-19 21:58:42 +00:00
gbeauche
39d97f5b04 - video_vosh.h (Screen_fault_handler): Move unrecoverable fault case to... 
- main_unix.cpp (sigsegv_dump_state): ... Here.
- sigsegv.h (sigsegv_fault_handler_t): Rename from sigsegv_handler_t.
- sigsegv.h (sigsegv_state_dumper_t): New.
 2002-05-16 15:48:06 +00:00
gbeauche
d5be07f449 - Merge with clisp SIGSEGV library version 1.2 with support added for 
HP-UX (contributed by Paolo Bonzini)
- Add missing? include <ucontext.h> for Irix and OSF/1 support
 2002-05-12 13:51:22 +00:00
gbeauche
266fc18f8a Implement the "ignoresegv" feature from SheepShaver. This is Unix-specific 
so far. Target platform is currently Linux/x86.
 2002-05-12 11:10:50 +00:00
gbeauche
b8ffa860a2 - Add fault instruction recovery for Linux/ppc and siginfo_t handlers 2002-03-16 21:36:12 +00:00
cebix
dc4d9a56c7 direct addressing works under FreeBSD (says Michael Alyn Miller :-) 2002-02-01 19:25:49 +00:00
cebix
628533940d - documentation updates 
- 2001 -> 2002
- version 0.9 -> 1.0
 2002-01-15 14:58:43 +00:00
gbeauche
00ef1ff5da - Add EIP recovery on Linux/x86 when using siginfo_t based signal handlers 2002-01-07 16:30:39 +00:00
gbeauche
054e33c8fc - small fixes for Linux/ia64 2001-07-07 09:12:15 +00:00
gbeauche
dae4fb627c - added SIGSEGV support for Linux/Alpha (to be checked), Darwin/PPC 
- added uniform virtual memory allocation
  (supports mmap(), vm_allocate(), or fallbacks to malloc()/free())
- cleaned up memory allocation in main_unix.cpp
 2001-06-26 22:35:42 +00:00
gbeauche
fe6ad83317 - use "volatile" to prevent from optimization for writes to page 2001-06-05 12:16:34 +00:00