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-rw-r--r--arch/i386/kernel/entry.S36
1 files changed, 4 insertions, 32 deletions
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index de34b7fed3c1..5e47683fc63a 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -302,12 +302,16 @@ sysenter_past_esp:
302 pushl $(__USER_CS) 302 pushl $(__USER_CS)
303 CFI_ADJUST_CFA_OFFSET 4 303 CFI_ADJUST_CFA_OFFSET 4
304 /*CFI_REL_OFFSET cs, 0*/ 304 /*CFI_REL_OFFSET cs, 0*/
305#ifndef CONFIG_COMPAT_VDSO
305 /* 306 /*
306 * Push current_thread_info()->sysenter_return to the stack. 307 * Push current_thread_info()->sysenter_return to the stack.
307 * A tiny bit of offset fixup is necessary - 4*4 means the 4 words 308 * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
308 * pushed above; +8 corresponds to copy_thread's esp0 setting. 309 * pushed above; +8 corresponds to copy_thread's esp0 setting.
309 */ 310 */
310 pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp) 311 pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp)
312#else
313 pushl $SYSENTER_RETURN
314#endif
311 CFI_ADJUST_CFA_OFFSET 4 315 CFI_ADJUST_CFA_OFFSET 4
312 CFI_REL_OFFSET eip, 0 316 CFI_REL_OFFSET eip, 0
313 317
@@ -979,38 +983,6 @@ ENTRY(spurious_interrupt_bug)
979 jmp error_code 983 jmp error_code
980 CFI_ENDPROC 984 CFI_ENDPROC
981 985
982#ifdef CONFIG_STACK_UNWIND
983ENTRY(arch_unwind_init_running)
984 CFI_STARTPROC
985 movl 4(%esp), %edx
986 movl (%esp), %ecx
987 leal 4(%esp), %eax
988 movl %ebx, PT_EBX(%edx)
989 xorl %ebx, %ebx
990 movl %ebx, PT_ECX(%edx)
991 movl %ebx, PT_EDX(%edx)
992 movl %esi, PT_ESI(%edx)
993 movl %edi, PT_EDI(%edx)
994 movl %ebp, PT_EBP(%edx)
995 movl %ebx, PT_EAX(%edx)
996 movl $__USER_DS, PT_DS(%edx)
997 movl $__USER_DS, PT_ES(%edx)
998 movl $0, PT_GS(%edx)
999 movl %ebx, PT_ORIG_EAX(%edx)
1000 movl %ecx, PT_EIP(%edx)
1001 movl 12(%esp), %ecx
1002 movl $__KERNEL_CS, PT_CS(%edx)
1003 movl %ebx, PT_EFLAGS(%edx)
1004 movl %eax, PT_OLDESP(%edx)
1005 movl 8(%esp), %eax
1006 movl %ecx, 8(%esp)
1007 movl PT_EBX(%edx), %ebx
1008 movl $__KERNEL_DS, PT_OLDSS(%edx)
1009 jmpl *%eax
1010 CFI_ENDPROC
1011ENDPROC(arch_unwind_init_running)
1012#endif
1013
1014ENTRY(kernel_thread_helper) 986ENTRY(kernel_thread_helper)
1015 pushl $0 # fake return address for unwinder 987 pushl $0 # fake return address for unwinder
1016 CFI_STARTPROC 988 CFI_STARTPROC