Re: [PATCH 6/6] reliable stack trace support (i386 entry.Sannotations)
From: Andrew Morton
Date: Fri May 26 2006 - 12:05:48 EST
Andrew Morton <akpm@xxxxxxxx> wrote:
>
> Andi Kleen <ak@xxxxxxx> wrote:
> >
> > You probably need newer binutils.
>
> Don't think so.
<fiddles a bit more>
This makes it build.
diff -puN arch/i386/kernel/entry.S~a arch/i386/kernel/entry.S
--- devel/arch/i386/kernel/entry.S~a 2006-05-26 09:02:57.000000000 -0700
+++ devel-akpm/arch/i386/kernel/entry.S 2006-05-26 09:04:08.000000000 -0700
@@ -733,6 +733,7 @@ nmi_debug_stack_check:
nmi_16bit_stack:
/* create the pointer to lss back */
+ CFI_STARTPROC simple
pushl %ss
pushl %esp
movzwl %sp, %esp
@@ -747,6 +748,7 @@ nmi_16bit_stack:
xorl %edx,%edx # zero error code
call do_nmi
RESTORE_REGS
+ CFI_ENDPROC
lss 12+4(%esp), %esp # back to 16bit stack
1: iret
.section __ex_table,"a"
@@ -756,11 +758,13 @@ nmi_16bit_stack:
KPROBE_ENTRY(int3)
pushl $-1 # mark this as an int
+ CFI_STARTPROC simple
SAVE_ALL
xorl %edx,%edx # zero error code
movl %esp,%eax # pt_regs pointer
call do_int3
jmp ret_from_exception
+ CFI_ENDPROC
.previous .text
ENTRY(overflow)
_
-
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