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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2012-10-05 02:15:35 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-05 20:05:16 +0200 |
| commit | 49ae4d4b113be03dc4a2ec5f2a1f573ff0fcddb3 (patch) | |
| tree | 5c172a0ef5cbf57abf969bc13b0a4e3b4c50aefd /include/linux/elf.h | |
| parent | compat: move compat_siginfo_t definition to asm/compat.h (diff) | |
| download | linux-49ae4d4b113be03dc4a2ec5f2a1f573ff0fcddb3.tar.xz linux-49ae4d4b113be03dc4a2ec5f2a1f573ff0fcddb3.zip | |
coredump: add a new elf note with siginfo of the signal
Existing PRSTATUS note contains only si_signo, si_code, si_errno fields
from the siginfo of the signal which caused core to be dumped.
There are tools which try to analyze crashes for possible security
implications, and they want to use, among other data, si_addr field from
the SIGSEGV.
This patch adds a new elf note, NT_SIGINFO, which contains the complete
siginfo_t of the signal which killed the process.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Amerigo Wang <amwang@redhat.com>
Cc: "Jonathan M. Foote" <jmfoote@cert.org>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/elf.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/elf.h b/include/linux/elf.h index 0a05051a8924..dc62da7447ca 100644 --- a/include/linux/elf.h +++ b/include/linux/elf.h @@ -372,6 +372,11 @@ typedef struct elf64_shdr { #define NT_PRPSINFO 3 #define NT_TASKSTRUCT 4 #define NT_AUXV 6 +/* + * Note to userspace developers: size of NT_SIGINFO note may increase + * in the future to accomodate more fields, don't assume it is fixed! + */ +#define NT_SIGINFO 0x53494749 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */ #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */ #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */ |