x86: Use {push,pop}_cfi in more places

Cleaning up and shortening code...

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Alexander van Heukelum <heukelum@fastmail.fm>
LKML-Reference: <4D6BD35002000078000341DA@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Esse commit está contido em:
Jan Beulich
2011-02-28 15:54:40 +00:00
commit de Ingo Molnar
commit 60cf637a13
7 arquivos alterados com 49 adições e 98 exclusões

Ver arquivo

@@ -126,26 +126,20 @@ ENTRY(ia32_sysenter_target)
*/
ENABLE_INTERRUPTS(CLBR_NONE)
movl %ebp,%ebp /* zero extension */
pushq $__USER32_DS
CFI_ADJUST_CFA_OFFSET 8
pushq_cfi $__USER32_DS
/*CFI_REL_OFFSET ss,0*/
pushq %rbp
CFI_ADJUST_CFA_OFFSET 8
pushq_cfi %rbp
CFI_REL_OFFSET rsp,0
pushfq
CFI_ADJUST_CFA_OFFSET 8
pushfq_cfi
/*CFI_REL_OFFSET rflags,0*/
movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d
CFI_REGISTER rip,r10
pushq $__USER32_CS
CFI_ADJUST_CFA_OFFSET 8
pushq_cfi $__USER32_CS
/*CFI_REL_OFFSET cs,0*/
movl %eax, %eax
pushq %r10
CFI_ADJUST_CFA_OFFSET 8
pushq_cfi %r10
CFI_REL_OFFSET rip,0
pushq %rax
CFI_ADJUST_CFA_OFFSET 8
pushq_cfi %rax
cld
SAVE_ARGS 0,0,1
/* no need to do an access_ok check here because rbp has been
@@ -182,11 +176,9 @@ sysexit_from_sys_call:
xorq %r9,%r9
xorq %r10,%r10
xorq %r11,%r11
popfq
CFI_ADJUST_CFA_OFFSET -8
popfq_cfi
/*CFI_RESTORE rflags*/
popq %rcx /* User %esp */
CFI_ADJUST_CFA_OFFSET -8
popq_cfi %rcx /* User %esp */
CFI_REGISTER rsp,rcx
TRACE_IRQS_ON
ENABLE_INTERRUPTS_SYSEXIT32
@@ -421,8 +413,7 @@ ENTRY(ia32_syscall)
*/
ENABLE_INTERRUPTS(CLBR_NONE)
movl %eax,%eax
pushq %rax
CFI_ADJUST_CFA_OFFSET 8
pushq_cfi %rax
cld
/* note the registers are not zero extended to the sf.
this could be a problem. */