diff options
author | Jeff Dike <jdike@addtoit.com> | 2007-05-06 17:51:25 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 15:13:02 -0400 |
commit | 377fad3acbb7e94ab9942a74e0d9ede8eeb2f039 (patch) | |
tree | 0bf8046bb1fa6ccb51df76b56819dee6b6d7487b /arch/um/include/common-offsets.h | |
parent | 5d86456d3852cb95a38d2b23fe01cede54984ba5 (diff) |
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/common-offsets.h')
-rw-r--r-- | arch/um/include/common-offsets.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h index 461175f8b1d9..5593a8027083 100644 --- a/arch/um/include/common-offsets.h +++ b/arch/um/include/common-offsets.h | |||
@@ -24,5 +24,7 @@ DEFINE(UM_ELF_CLASS, ELF_CLASS); | |||
24 | DEFINE(UM_ELFCLASS32, ELFCLASS32); | 24 | DEFINE(UM_ELFCLASS32, ELFCLASS32); |
25 | DEFINE(UM_ELFCLASS64, ELFCLASS64); | 25 | DEFINE(UM_ELFCLASS64, ELFCLASS64); |
26 | 26 | ||
27 | DEFINE(UM_NR_CPUS, NR_CPUS); | ||
28 | |||
27 | /* For crypto assembler code. */ | 29 | /* For crypto assembler code. */ |
28 | DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); | 30 | DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); |