From: Roland McGrath Date: Wed, 30 Jan 2008 12:30:43 +0000 (+0100) Subject: x86 vDSO: ia32_sysenter_target X-Git-Tag: v2.6.25-rc1~1143^2~733 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=0aa97fb22624f18e5925d702ab0364d3838cfd91;p=linux-2.6-omap-h63xx.git x86 vDSO: ia32_sysenter_target This harmonizes the name for the entry point from the 32-bit sysenter instruction across 32-bit and 64-bit kernels. Signed-off-by: Roland McGrath Cc: Andrew Morton Cc: Linus Torvalds Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index d63609dd64b..153bb87a4ee 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -283,7 +283,7 @@ END(resume_kernel) the vsyscall page. See vsyscall-sysentry.S, which defines the symbol. */ # sysenter call handler stub -ENTRY(sysenter_entry) +ENTRY(ia32_sysenter_target) CFI_STARTPROC simple CFI_SIGNAL_FRAME CFI_DEF_CFA esp, 0 @@ -360,7 +360,7 @@ sysenter_past_esp: .align 4 .long 1b,2b .popsection -ENDPROC(sysenter_entry) +ENDPROC(ia32_sysenter_target) # system call handler stub ENTRY(system_call) @@ -768,7 +768,7 @@ label: \ KPROBE_ENTRY(debug) RING0_INT_FRAME - cmpl $sysenter_entry,(%esp) + cmpl $ia32_sysenter_target,(%esp) jne debug_stack_correct FIX_STACK(12, debug_stack_correct, debug_esp_fix_insn) debug_stack_correct: @@ -799,7 +799,7 @@ KPROBE_ENTRY(nmi) popl %eax CFI_ADJUST_CFA_OFFSET -4 je nmi_espfix_stack - cmpl $sysenter_entry,(%esp) + cmpl $ia32_sysenter_target,(%esp) je nmi_stack_fixup pushl %eax CFI_ADJUST_CFA_OFFSET 4 @@ -812,7 +812,7 @@ KPROBE_ENTRY(nmi) popl %eax CFI_ADJUST_CFA_OFFSET -4 jae nmi_stack_correct - cmpl $sysenter_entry,12(%esp) + cmpl $ia32_sysenter_target,12(%esp) je nmi_debug_stack_check nmi_stack_correct: /* We have a RING0_INT_FRAME here */ diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c index 85c52d23ee4..fb71a93c5dc 100644 --- a/arch/x86/vdso/vdso32-setup.c +++ b/arch/x86/vdso/vdso32-setup.c @@ -54,7 +54,7 @@ static int __init vdso_setup(char *s) __setup("vdso=", vdso_setup); -extern asmlinkage void sysenter_entry(void); +extern asmlinkage void ia32_sysenter_target(void); static __init void reloc_symtab(Elf32_Ehdr *ehdr, unsigned offset, unsigned size) @@ -187,7 +187,7 @@ void enable_sep_cpu(void) tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss; wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0); wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0); - wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0); + wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) ia32_sysenter_target, 0); put_cpu(); }