Commit Graph

30 Commits

Author SHA1 Message Date
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
gbeauche
b7d1ee252c - fixed "SIGSEGV recovery" not supported case 2001-05-21 03:21:54 +00:00
gbeauche
98192c4ba9 - new and updated SIGSEGV support functions:
+ configure script cleanups
  + possible support for Direct Addressing / VOSF on other platforms
2001-05-20 20:31:50 +00:00