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 <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]>
---
arch/x86/kernel/ptrace.c | 1 +
include/linux/elf.h | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index e8c2ba3..25b6578 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1314,6 +1314,7 @@ 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),
diff --git a/include/linux/elf.h b/include/linux/elf.h
index ba268b2..30eb6fb 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -356,6 +356,7 @@ typedef struct elf64_shdr {
#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 */
+#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
/* Note header in a PT_NOTE section */
--
1.5.3.6
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