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x86: x86 core dump TLS

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This makes ELF core dumps of 32-bit processes include a new
note type NT_386_TLS (0x200) giving the contents of the TLS
slots in struct user_desc format.  This lets post mortem
examination figure out what the segment registers mean like
the debugger does with get_thread_area on a live process.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Roland McGrath
2008-01-30 13:31:56 +01:00
committed by Ingo Molnar
parent a06b24e8bf
commit bb61682b3f
2 changed files with 2 additions and 0 deletions
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arch/x86/kernel/ptrace.c
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@ -1313,6 +1313,7 @@ static const struct user_regset x86_32_regsets[] = {
.active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set
},
[REGSET_TLS] = {
.core_note_type = NT_386_TLS,
.n = GDT_ENTRY_TLS_ENTRIES, .bias = GDT_ENTRY_TLS_MIN,
.size = sizeof(struct user_desc),
.align = sizeof(struct user_desc),