diff options
| author | Jeff Dike <jdike@addtoit.com> | 2007-05-06 21:51:25 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 19:13:02 (GMT) |
| commit | 377fad3acbb7e94ab9942a74e0d9ede8eeb2f039 (patch) | |
| tree | 0bf8046bb1fa6ccb51df76b56819dee6b6d7487b /arch/um/include/kern_util.h | |
| parent | 5d86456d3852cb95a38d2b23fe01cede54984ba5 (diff) | |
| download | linux-377fad3acbb7e94ab9942a74e0d9ede8eeb2f039.tar.xz | |
uml: kernel segfaults should dump proper registers
If there's a segfault inside the kernel, we want a dump of the registers at
the point of the segfault, not the registers at the point of calling panic or
the last userspace registers.
sig_handler_common_skas now uses a static register set in the case of a
SIGSEGV to avoid messing up the process registers if the segfault turns out to
be non-fatal.
The architecture sigcontext-to-pt_regs copying code was repurposed to copy
data out of the SEGV stack frame.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/include/kern_util.h')
| -rw-r--r-- | arch/um/include/kern_util.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index 092a284..50a4969 100644 --- a/arch/um/include/kern_util.h +++ b/arch/um/include/kern_util.h @@ -115,4 +115,6 @@ extern void time_init_kern(void); extern int __cant_sleep(void); extern void sigio_handler(int sig, union uml_pt_regs *regs); +extern void copy_sc(union uml_pt_regs *regs, void *from); + #endif |