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yaml
---
r: 305441
b: refs/heads/master
c: 6837a54
h: refs/heads/master
i:
  305439: 449552a
v: v3
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H. Peter Anvin committed Apr 20, 2012
1 parent 08a126b commit fdaa0c5
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Showing 2 changed files with 15 additions and 34 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 1ce6f86815a392acce2b45512106b525dc994cc0
refs/heads/master: 6837a54dd6127f055dcb26d00fee0df05c07a674
47 changes: 14 additions & 33 deletions trunk/arch/x86/kernel/entry_32.S
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,7 @@
#include <asm/irq_vectors.h>
#include <asm/cpufeature.h>
#include <asm/alternative-asm.h>
#include <asm/asm.h>

/* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
#include <linux/elf-em.h>
Expand Down Expand Up @@ -151,10 +152,8 @@
.pushsection .fixup, "ax"
99: movl $0, (%esp)
jmp 98b
.section __ex_table, "a"
.align 4
.long 98b, 99b
.popsection
_ASM_EXTABLE(98b,99b)
.endm

.macro PTGS_TO_GS
Expand All @@ -164,10 +163,8 @@
.pushsection .fixup, "ax"
99: movl $0, PT_GS(%esp)
jmp 98b
.section __ex_table, "a"
.align 4
.long 98b, 99b
.popsection
_ASM_EXTABLE(98b,99b)
.endm

.macro GS_TO_REG reg
Expand Down Expand Up @@ -249,12 +246,10 @@
jmp 2b
6: movl $0, (%esp)
jmp 3b
.section __ex_table, "a"
.align 4
.long 1b, 4b
.long 2b, 5b
.long 3b, 6b
.popsection
_ASM_EXTABLE(1b,4b)
_ASM_EXTABLE(2b,5b)
_ASM_EXTABLE(3b,6b)
POP_GS_EX
.endm

Expand Down Expand Up @@ -415,10 +410,7 @@ sysenter_past_esp:
jae syscall_fault
1: movl (%ebp),%ebp
movl %ebp,PT_EBP(%esp)
.section __ex_table,"a"
.align 4
.long 1b,syscall_fault
.previous
_ASM_EXTABLE(1b,syscall_fault)

GET_THREAD_INFO(%ebp)

Expand Down Expand Up @@ -485,10 +477,8 @@ sysexit_audit:
.pushsection .fixup,"ax"
2: movl $0,PT_FS(%esp)
jmp 1b
.section __ex_table,"a"
.align 4
.long 1b,2b
.popsection
_ASM_EXTABLE(1b,2b)
PTGS_TO_GS_EX
ENDPROC(ia32_sysenter_target)

Expand Down Expand Up @@ -543,10 +533,7 @@ ENTRY(iret_exc)
pushl $do_iret_error
jmp error_code
.previous
.section __ex_table,"a"
.align 4
.long irq_return,iret_exc
.previous
_ASM_EXTABLE(irq_return,iret_exc)

CFI_RESTORE_STATE
ldt_ss:
Expand Down Expand Up @@ -901,10 +888,7 @@ END(device_not_available)
#ifdef CONFIG_PARAVIRT
ENTRY(native_iret)
iret
.section __ex_table,"a"
.align 4
.long native_iret, iret_exc
.previous
_ASM_EXTABLE(native_iret, iret_exc)
END(native_iret)

ENTRY(native_irq_enable_sysexit)
Expand Down Expand Up @@ -1093,13 +1077,10 @@ ENTRY(xen_failsafe_callback)
movl %eax,16(%esp)
jmp 4b
.previous
.section __ex_table,"a"
.align 4
.long 1b,6b
.long 2b,7b
.long 3b,8b
.long 4b,9b
.previous
_ASM_EXTABLE(1b,6b)
_ASM_EXTABLE(2b,7b)
_ASM_EXTABLE(3b,8b)
_ASM_EXTABLE(4b,9b)
ENDPROC(xen_failsafe_callback)

BUILD_INTERRUPT3(xen_hvm_callback_vector, XEN_HVM_EVTCHN_CALLBACK,
Expand Down

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