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authorAndi Kleen <ak@suse.de>2006-02-16 23:42:10 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-17 08:00:40 -0800
commit6574ffd74b03e35026f428a2c820e6ddf45d426c (patch)
tree5e02a440a8499d0ac8e41a9dd7d4e74dbbe1ea19 /arch/x86_64/kernel/head.S
parent7fd67843b96f90f59c9a244a1bc25137978a3ff9 (diff)
[PATCH] x86_64: Resolve the RIP of an early exception using kallsyms
But do it after everything else to risk less from recursive crashes. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/head.S')
-rw-r--r--arch/x86_64/kernel/head.S7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S
index 692c737feddb..02fc7fa0ea28 100644
--- a/arch/x86_64/kernel/head.S
+++ b/arch/x86_64/kernel/head.S
@@ -213,6 +213,11 @@ ENTRY(early_idt_handler)
cmpl $2,early_recursion_flag(%rip)
jz 1f
call dump_stack
+#ifdef CONFIG_KALLSYMS
+ leaq early_idt_ripmsg(%rip),%rdi
+ movq 8(%rsp),%rsi # get rip again
+ call __print_symbol
+#endif
1: hlt
jmp 1b
early_recursion_flag:
@@ -220,6 +225,8 @@ early_recursion_flag:
early_idt_msg:
.asciz "PANIC: early exception rip %lx error %lx cr2 %lx\n"
+early_idt_ripmsg:
+ .asciz "RIP %s\n"
.code32
ENTRY(no_long_mode)