]> git.openfabrics.org - ~shefty/rdma-dev.git/commitdiff
x86: Use {push,pop}{l,q}_cfi in more places
authorJan Beulich <JBeulich@novell.com>
Thu, 2 Sep 2010 13:07:16 +0000 (14:07 +0100)
committerIngo Molnar <mingo@elte.hu>
Fri, 3 Sep 2010 06:14:11 +0000 (08:14 +0200)
... plus additionally introduce {push,pop}f{l,q}_cfi. All in the
hope that the code becomes better readable this way (it gets
quite a bit smaller in any case).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Alexander van Heukelum <heukelum@fastmail.fm>
LKML-Reference: <4C7FBDA40200007800013FAF@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/include/asm/dwarf2.h
arch/x86/kernel/entry_32.S
arch/x86/kernel/entry_64.S

index 733f7e91e7a99f45435a6b46c831ff3e6e9c05da..326099199318c4ce1066a03a04220c08914ca890 100644 (file)
        CFI_ADJUST_CFA_OFFSET -8
        .endm
 
+       .macro pushfq_cfi
+       pushfq
+       CFI_ADJUST_CFA_OFFSET 8
+       .endm
+
+       .macro popfq_cfi
+       popfq
+       CFI_ADJUST_CFA_OFFSET -8
+       .endm
+
        .macro movq_cfi reg offset=0
        movq %\reg, \offset(%rsp)
        CFI_REL_OFFSET \reg, \offset
        CFI_ADJUST_CFA_OFFSET -4
        .endm
 
+       .macro pushfl_cfi
+       pushfl
+       CFI_ADJUST_CFA_OFFSET 4
+       .endm
+
+       .macro popfl_cfi
+       popfl
+       CFI_ADJUST_CFA_OFFSET -4
+       .endm
+
        .macro movl_cfi reg offset=0
        movl %\reg, \offset(%esp)
        CFI_REL_OFFSET \reg, \offset
index d9b950ee5590422e479be17b16f198638993af65..9fb188d7bc762a8101bffde7d32f8e4851512360 100644 (file)
 
  /* unfortunately push/pop can't be no-op */
 .macro PUSH_GS
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
 .endm
 .macro POP_GS pop=0
        addl $(4 + \pop), %esp
 #else  /* CONFIG_X86_32_LAZY_GS */
 
 .macro PUSH_GS
-       pushl %gs
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %gs
        /*CFI_REL_OFFSET gs, 0*/
 .endm
 
 .macro POP_GS pop=0
-98:    popl %gs
-       CFI_ADJUST_CFA_OFFSET -4
+98:    popl_cfi %gs
        /*CFI_RESTORE gs*/
   .if \pop <> 0
        add $\pop, %esp
 .macro SAVE_ALL
        cld
        PUSH_GS
-       pushl %fs
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %fs
        /*CFI_REL_OFFSET fs, 0;*/
-       pushl %es
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %es
        /*CFI_REL_OFFSET es, 0;*/
-       pushl %ds
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ds
        /*CFI_REL_OFFSET ds, 0;*/
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        CFI_REL_OFFSET eax, 0
-       pushl %ebp
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ebp
        CFI_REL_OFFSET ebp, 0
-       pushl %edi
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %edi
        CFI_REL_OFFSET edi, 0
-       pushl %esi
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %esi
        CFI_REL_OFFSET esi, 0
-       pushl %edx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %edx
        CFI_REL_OFFSET edx, 0
-       pushl %ecx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ecx
        CFI_REL_OFFSET ecx, 0
-       pushl %ebx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ebx
        CFI_REL_OFFSET ebx, 0
        movl $(__USER_DS), %edx
        movl %edx, %ds
 .endm
 
 .macro RESTORE_INT_REGS
-       popl %ebx
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %ebx
        CFI_RESTORE ebx
-       popl %ecx
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %ecx
        CFI_RESTORE ecx
-       popl %edx
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %edx
        CFI_RESTORE edx
-       popl %esi
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %esi
        CFI_RESTORE esi
-       popl %edi
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %edi
        CFI_RESTORE edi
-       popl %ebp
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %ebp
        CFI_RESTORE ebp
-       popl %eax
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %eax
        CFI_RESTORE eax
 .endm
 
 .macro RESTORE_REGS pop=0
        RESTORE_INT_REGS
-1:     popl %ds
-       CFI_ADJUST_CFA_OFFSET -4
+1:     popl_cfi %ds
        /*CFI_RESTORE ds;*/
-2:     popl %es
-       CFI_ADJUST_CFA_OFFSET -4
+2:     popl_cfi %es
        /*CFI_RESTORE es;*/
-3:     popl %fs
-       CFI_ADJUST_CFA_OFFSET -4
+3:     popl_cfi %fs
        /*CFI_RESTORE fs;*/
        POP_GS \pop
 .pushsection .fixup, "ax"
 
 ENTRY(ret_from_fork)
        CFI_STARTPROC
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        call schedule_tail
        GET_THREAD_INFO(%ebp)
-       popl %eax
-       CFI_ADJUST_CFA_OFFSET -4
-       pushl $0x0202                   # Reset kernel eflags
-       CFI_ADJUST_CFA_OFFSET 4
-       popfl
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %eax
+       pushl_cfi $0x0202               # Reset kernel eflags
+       popfl_cfi
        jmp syscall_exit
        CFI_ENDPROC
 END(ret_from_fork)
@@ -409,29 +382,23 @@ sysenter_past_esp:
         * enough kernel state to call TRACE_IRQS_OFF can be called - but
         * we immediately enable interrupts at that point anyway.
         */
-       pushl $(__USER_DS)
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $(__USER_DS)
        /*CFI_REL_OFFSET ss, 0*/
-       pushl %ebp
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ebp
        CFI_REL_OFFSET esp, 0
-       pushfl
+       pushfl_cfi
        orl $X86_EFLAGS_IF, (%esp)
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $(__USER_CS)
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $(__USER_CS)
        /*CFI_REL_OFFSET cs, 0*/
        /*
         * Push current_thread_info()->sysenter_return to the stack.
         * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
         * pushed above; +8 corresponds to copy_thread's esp0 setting.
         */
-       pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp)
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp)
        CFI_REL_OFFSET eip, 0
 
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        SAVE_ALL
        ENABLE_INTERRUPTS(CLBR_NONE)
 
@@ -486,8 +453,7 @@ sysenter_audit:
        movl %eax,%edx                  /* 2nd arg: syscall number */
        movl $AUDIT_ARCH_I386,%eax      /* 1st arg: audit arch */
        call audit_syscall_entry
-       pushl %ebx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ebx
        movl PT_EAX(%esp),%eax          /* reload syscall number */
        jmp sysenter_do_call
 
@@ -529,8 +495,7 @@ ENDPROC(ia32_sysenter_target)
        # system call handler stub
 ENTRY(system_call)
        RING0_INT_FRAME                 # can't unwind into user space anyway
-       pushl %eax                      # save orig_eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax                  # save orig_eax
        SAVE_ALL
        GET_THREAD_INFO(%ebp)
                                        # system call tracing in operation / emulation
@@ -566,7 +531,6 @@ restore_all_notrace:
        je ldt_ss                       # returning to user-space with LDT SS
 restore_nocheck:
        RESTORE_REGS 4                  # skip orig_eax/error_code
-       CFI_ADJUST_CFA_OFFSET -4
 irq_return:
        INTERRUPT_RETURN
 .section .fixup,"ax"
@@ -619,10 +583,8 @@ ldt_ss:
        shr $16, %edx
        mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
        mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
-       pushl $__ESPFIX_SS
-       CFI_ADJUST_CFA_OFFSET 4
-       push %eax                       /* new kernel esp */
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $__ESPFIX_SS
+       pushl_cfi %eax                  /* new kernel esp */
        /* Disable interrupts, but do not irqtrace this section: we
         * will soon execute iret and the tracer was already set to
         * the irqstate after the iret */
@@ -666,11 +628,9 @@ work_notifysig:                            # deal with pending signals and
 
        ALIGN
 work_notifysig_v86:
-       pushl %ecx                      # save ti_flags for do_notify_resume
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ecx                  # save ti_flags for do_notify_resume
        call save_v86_state             # %eax contains pt_regs pointer
-       popl %ecx
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %ecx
        movl %eax, %esp
 #else
        movl %esp, %eax
@@ -803,10 +763,8 @@ ENDPROC(ptregs_clone)
        mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
        shl $16, %eax
        addl %esp, %eax                 /* the adjusted stack pointer */
-       pushl $__KERNEL_DS
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $__KERNEL_DS
+       pushl_cfi %eax
        lss (%esp), %esp                /* switch to the normal stack segment */
        CFI_ADJUST_CFA_OFFSET -8
 .endm
@@ -843,8 +801,7 @@ vector=FIRST_EXTERNAL_VECTOR
       .if vector <> FIRST_EXTERNAL_VECTOR
        CFI_ADJUST_CFA_OFFSET -4
       .endif
-1:     pushl $(~vector+0x80)   /* Note: always in signed byte range */
-       CFI_ADJUST_CFA_OFFSET 4
+1:     pushl_cfi $(~vector+0x80)       /* Note: always in signed byte range */
       .if ((vector-FIRST_EXTERNAL_VECTOR)%7) <> 6
        jmp 2f
       .endif
@@ -884,8 +841,7 @@ ENDPROC(common_interrupt)
 #define BUILD_INTERRUPT3(name, nr, fn) \
 ENTRY(name)                            \
        RING0_INT_FRAME;                \
-       pushl $~(nr);                   \
-       CFI_ADJUST_CFA_OFFSET 4;        \
+       pushl_cfi $~(nr);               \
        SAVE_ALL;                       \
        TRACE_IRQS_OFF                  \
        movl %esp,%eax;                 \
@@ -901,21 +857,18 @@ ENDPROC(name)
 
 ENTRY(coprocessor_error)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_coprocessor_error
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi $do_coprocessor_error
        jmp error_code
        CFI_ENDPROC
 END(coprocessor_error)
 
 ENTRY(simd_coprocessor_error)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
 #ifdef CONFIG_X86_INVD_BUG
        /* AMD 486 bug: invd from userspace calls exception 19 instead of #GP */
-661:   pushl $do_general_protection
+661:   pushl_cfi $do_general_protection
 662:
 .section .altinstructions,"a"
        .balign 4
@@ -930,19 +883,16 @@ ENTRY(simd_coprocessor_error)
 664:
 .previous
 #else
-       pushl $do_simd_coprocessor_error
+       pushl_cfi $do_simd_coprocessor_error
 #endif
-       CFI_ADJUST_CFA_OFFSET 4
        jmp error_code
        CFI_ENDPROC
 END(simd_coprocessor_error)
 
 ENTRY(device_not_available)
        RING0_INT_FRAME
-       pushl $-1                       # mark this as an int
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_device_not_available
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $-1                   # mark this as an int
+       pushl_cfi $do_device_not_available
        jmp error_code
        CFI_ENDPROC
 END(device_not_available)
@@ -964,82 +914,68 @@ END(native_irq_enable_sysexit)
 
 ENTRY(overflow)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_overflow
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi $do_overflow
        jmp error_code
        CFI_ENDPROC
 END(overflow)
 
 ENTRY(bounds)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_bounds
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi $do_bounds
        jmp error_code
        CFI_ENDPROC
 END(bounds)
 
 ENTRY(invalid_op)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_invalid_op
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi $do_invalid_op
        jmp error_code
        CFI_ENDPROC
 END(invalid_op)
 
 ENTRY(coprocessor_segment_overrun)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_coprocessor_segment_overrun
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi $do_coprocessor_segment_overrun
        jmp error_code
        CFI_ENDPROC
 END(coprocessor_segment_overrun)
 
 ENTRY(invalid_TSS)
        RING0_EC_FRAME
-       pushl $do_invalid_TSS
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $do_invalid_TSS
        jmp error_code
        CFI_ENDPROC
 END(invalid_TSS)
 
 ENTRY(segment_not_present)
        RING0_EC_FRAME
-       pushl $do_segment_not_present
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $do_segment_not_present
        jmp error_code
        CFI_ENDPROC
 END(segment_not_present)
 
 ENTRY(stack_segment)
        RING0_EC_FRAME
-       pushl $do_stack_segment
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $do_stack_segment
        jmp error_code
        CFI_ENDPROC
 END(stack_segment)
 
 ENTRY(alignment_check)
        RING0_EC_FRAME
-       pushl $do_alignment_check
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $do_alignment_check
        jmp error_code
        CFI_ENDPROC
 END(alignment_check)
 
 ENTRY(divide_error)
        RING0_INT_FRAME
-       pushl $0                        # no error code
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_divide_error
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0                    # no error code
+       pushl_cfi $do_divide_error
        jmp error_code
        CFI_ENDPROC
 END(divide_error)
@@ -1047,10 +983,8 @@ END(divide_error)
 #ifdef CONFIG_X86_MCE
 ENTRY(machine_check)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl machine_check_vector
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi machine_check_vector
        jmp error_code
        CFI_ENDPROC
 END(machine_check)
@@ -1058,10 +992,8 @@ END(machine_check)
 
 ENTRY(spurious_interrupt_bug)
        RING0_INT_FRAME
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $do_spurious_interrupt_bug
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
+       pushl_cfi $do_spurious_interrupt_bug
        jmp error_code
        CFI_ENDPROC
 END(spurious_interrupt_bug)
@@ -1092,8 +1024,7 @@ ENTRY(xen_sysenter_target)
 
 ENTRY(xen_hypervisor_callback)
        CFI_STARTPROC
-       pushl $0
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $0
        SAVE_ALL
        TRACE_IRQS_OFF
 
@@ -1129,23 +1060,20 @@ ENDPROC(xen_hypervisor_callback)
 # We distinguish between categories by maintaining a status value in EAX.
 ENTRY(xen_failsafe_callback)
        CFI_STARTPROC
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        movl $1,%eax
 1:     mov 4(%esp),%ds
 2:     mov 8(%esp),%es
 3:     mov 12(%esp),%fs
 4:     mov 16(%esp),%gs
        testl %eax,%eax
-       popl %eax
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %eax
        lea 16(%esp),%esp
        CFI_ADJUST_CFA_OFFSET -16
        jz 5f
        addl $16,%esp
        jmp iret_exc            # EAX != 0 => Category 2 (Bad IRET)
-5:     pushl $0                # EAX == 0 => Category 1 (Bad segment)
-       CFI_ADJUST_CFA_OFFSET 4
+5:     pushl_cfi $0            # EAX == 0 => Category 1 (Bad segment)
        SAVE_ALL
        jmp ret_from_exception
        CFI_ENDPROC
@@ -1295,40 +1223,29 @@ syscall_table_size=(.-sys_call_table)
 
 ENTRY(page_fault)
        RING0_EC_FRAME
-       pushl $do_page_fault
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $do_page_fault
        ALIGN
 error_code:
        /* the function address is in %gs's slot on the stack */
-       pushl %fs
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %fs
        /*CFI_REL_OFFSET fs, 0*/
-       pushl %es
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %es
        /*CFI_REL_OFFSET es, 0*/
-       pushl %ds
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ds
        /*CFI_REL_OFFSET ds, 0*/
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        CFI_REL_OFFSET eax, 0
-       pushl %ebp
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ebp
        CFI_REL_OFFSET ebp, 0
-       pushl %edi
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %edi
        CFI_REL_OFFSET edi, 0
-       pushl %esi
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %esi
        CFI_REL_OFFSET esi, 0
-       pushl %edx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %edx
        CFI_REL_OFFSET edx, 0
-       pushl %ecx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ecx
        CFI_REL_OFFSET ecx, 0
-       pushl %ebx
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ebx
        CFI_REL_OFFSET ebx, 0
        cld
        movl $(__KERNEL_PERCPU), %ecx
@@ -1370,12 +1287,9 @@ END(page_fault)
        movl TSS_sysenter_sp0 + \offset(%esp), %esp
        CFI_DEF_CFA esp, 0
        CFI_UNDEFINED eip
-       pushfl
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $__KERNEL_CS
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl $sysenter_past_esp
-       CFI_ADJUST_CFA_OFFSET 4
+       pushfl_cfi
+       pushl_cfi $__KERNEL_CS
+       pushl_cfi $sysenter_past_esp
        CFI_REL_OFFSET eip, 0
 .endm
 
@@ -1385,8 +1299,7 @@ ENTRY(debug)
        jne debug_stack_correct
        FIX_STACK 12, debug_stack_correct, debug_esp_fix_insn
 debug_stack_correct:
-       pushl $-1                       # mark this as an int
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $-1                   # mark this as an int
        SAVE_ALL
        TRACE_IRQS_OFF
        xorl %edx,%edx                  # error code 0
@@ -1406,32 +1319,27 @@ END(debug)
  */
 ENTRY(nmi)
        RING0_INT_FRAME
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        movl %ss, %eax
        cmpw $__ESPFIX_SS, %ax
-       popl %eax
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %eax
        je nmi_espfix_stack
        cmpl $ia32_sysenter_target,(%esp)
        je nmi_stack_fixup
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        movl %esp,%eax
        /* Do not access memory above the end of our stack page,
         * it might not exist.
         */
        andl $(THREAD_SIZE-1),%eax
        cmpl $(THREAD_SIZE-20),%eax
-       popl %eax
-       CFI_ADJUST_CFA_OFFSET -4
+       popl_cfi %eax
        jae nmi_stack_correct
        cmpl $ia32_sysenter_target,12(%esp)
        je nmi_debug_stack_check
 nmi_stack_correct:
        /* We have a RING0_INT_FRAME here */
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        SAVE_ALL
        xorl %edx,%edx          # zero error code
        movl %esp,%eax          # pt_regs pointer
@@ -1460,18 +1368,14 @@ nmi_espfix_stack:
         *
         * create the pointer to lss back
         */
-       pushl %ss
-       CFI_ADJUST_CFA_OFFSET 4
-       pushl %esp
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %ss
+       pushl_cfi %esp
        addl $4, (%esp)
        /* copy the iret frame of 12 bytes */
        .rept 3
-       pushl 16(%esp)
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi 16(%esp)
        .endr
-       pushl %eax
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi %eax
        SAVE_ALL
        FIXUP_ESPFIX_STACK              # %eax == %esp
        xorl %edx,%edx                  # zero error code
@@ -1485,8 +1389,7 @@ END(nmi)
 
 ENTRY(int3)
        RING0_INT_FRAME
-       pushl $-1                       # mark this as an int
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $-1                   # mark this as an int
        SAVE_ALL
        TRACE_IRQS_OFF
        xorl %edx,%edx          # zero error code
@@ -1498,8 +1401,7 @@ END(int3)
 
 ENTRY(general_protection)
        RING0_EC_FRAME
-       pushl $do_general_protection
-       CFI_ADJUST_CFA_OFFSET 4
+       pushl_cfi $do_general_protection
        jmp error_code
        CFI_ENDPROC
 END(general_protection)
index 6f305830c80cf6949543cf0dda67e2b24b7410e5..8851a2bb8c0b6b5c6f49d329ccd4751685ac5b2c 100644 (file)
@@ -213,23 +213,17 @@ ENDPROC(native_usergs_sysret64)
        .macro FAKE_STACK_FRAME child_rip
        /* push in order ss, rsp, eflags, cs, rip */
        xorl %eax, %eax
-       pushq $__KERNEL_DS /* ss */
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi $__KERNEL_DS /* ss */
        /*CFI_REL_OFFSET        ss,0*/
-       pushq %rax /* rsp */
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi %rax /* rsp */
        CFI_REL_OFFSET  rsp,0
-       pushq $X86_EFLAGS_IF /* eflags - interrupts on */
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi $X86_EFLAGS_IF /* eflags - interrupts on */
        /*CFI_REL_OFFSET        rflags,0*/
-       pushq $__KERNEL_CS /* cs */
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi $__KERNEL_CS /* cs */
        /*CFI_REL_OFFSET        cs,0*/
-       pushq \child_rip /* rip */
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi \child_rip /* rip */
        CFI_REL_OFFSET  rip,0
-       pushq   %rax /* orig rax */
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi %rax /* orig rax */
        .endm
 
        .macro UNFAKE_STACK_FRAME
@@ -398,10 +392,8 @@ ENTRY(ret_from_fork)
 
        LOCK ; btr $TIF_FORK,TI_flags(%r8)
 
-       push kernel_eflags(%rip)
-       CFI_ADJUST_CFA_OFFSET 8
-       popf                                    # reset kernel eflags
-       CFI_ADJUST_CFA_OFFSET -8
+       pushq_cfi kernel_eflags(%rip)
+       popfq_cfi                               # reset kernel eflags
 
        call schedule_tail                      # rdi: 'prev' task parameter
 
@@ -521,11 +513,9 @@ sysret_careful:
        jnc sysret_signal
        TRACE_IRQS_ON
        ENABLE_INTERRUPTS(CLBR_NONE)
-       pushq %rdi
-       CFI_ADJUST_CFA_OFFSET 8
+       pushq_cfi %rdi
        call schedule
-       popq  %rdi
-       CFI_ADJUST_CFA_OFFSET -8
+       popq_cfi %rdi
        jmp sysret_check
 
        /* Handle a signal */
@@ -634,11 +624,9 @@ int_careful:
        jnc  int_very_careful
        TRACE_IRQS_ON
        ENABLE_INTERRUPTS(CLBR_NONE)
-       pushq %rdi
-       CFI_ADJUST_CFA_OFFSET 8
+       pushq_cfi %rdi
        call schedule
-       popq %rdi
-       CFI_ADJUST_CFA_OFFSET -8
+       popq_cfi %rdi
        DISABLE_INTERRUPTS(CLBR_NONE)
        TRACE_IRQS_OFF
        jmp int_with_check
@@ -652,12 +640,10 @@ int_check_syscall_exit_work:
        /* Check for syscall exit trace */
        testl $_TIF_WORK_SYSCALL_EXIT,%edx
        jz int_signal
-       pushq %rdi
-       CFI_ADJUST_CFA_OFFSET 8
+       pushq_cfi %rdi
        leaq 8(%rsp),%rdi       # &ptregs -> arg1
        call syscall_trace_leave
-       popq %rdi
-       CFI_ADJUST_CFA_OFFSET -8
+       popq_cfi %rdi
        andl $~(_TIF_WORK_SYSCALL_EXIT|_TIF_SYSCALL_EMU),%edi
        jmp int_restore_rest
 
@@ -765,8 +751,7 @@ vector=FIRST_EXTERNAL_VECTOR
       .if vector <> FIRST_EXTERNAL_VECTOR
        CFI_ADJUST_CFA_OFFSET -8
       .endif
-1:     pushq $(~vector+0x80)   /* Note: always in signed byte range */
-       CFI_ADJUST_CFA_OFFSET 8
+1:     pushq_cfi $(~vector+0x80)       /* Note: always in signed byte range */
       .if ((vector-FIRST_EXTERNAL_VECTOR)%7) <> 6
        jmp 2f
       .endif
@@ -821,6 +806,7 @@ ret_from_intr:
        TRACE_IRQS_OFF
        decl PER_CPU_VAR(irq_count)
        leaveq
+       CFI_RESTORE             rbp
        CFI_DEF_CFA_REGISTER    rsp
        CFI_ADJUST_CFA_OFFSET   -8
 exit_intr:
@@ -902,11 +888,9 @@ retint_careful:
        jnc   retint_signal
        TRACE_IRQS_ON
        ENABLE_INTERRUPTS(CLBR_NONE)
-       pushq %rdi
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi %rdi
        call  schedule
-       popq %rdi
-       CFI_ADJUST_CFA_OFFSET   -8
+       popq_cfi %rdi
        GET_THREAD_INFO(%rcx)
        DISABLE_INTERRUPTS(CLBR_NONE)
        TRACE_IRQS_OFF
@@ -955,8 +939,7 @@ END(common_interrupt)
 .macro apicinterrupt num sym do_sym
 ENTRY(\sym)
        INTR_FRAME
-       pushq $~(\num)
-       CFI_ADJUST_CFA_OFFSET 8
+       pushq_cfi $~(\num)
        interrupt \do_sym
        jmp ret_from_intr
        CFI_ENDPROC
@@ -1138,16 +1121,14 @@ zeroentry simd_coprocessor_error do_simd_coprocessor_error
        /* edi:  new selector */
 ENTRY(native_load_gs_index)
        CFI_STARTPROC
-       pushf
-       CFI_ADJUST_CFA_OFFSET 8
+       pushfq_cfi
        DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI)
        SWAPGS
 gs_change:
        movl %edi,%gs
 2:     mfence          /* workaround */
        SWAPGS
-       popf
-       CFI_ADJUST_CFA_OFFSET -8
+       popfq_cfi
        ret
        CFI_ENDPROC
 END(native_load_gs_index)
@@ -1214,8 +1195,7 @@ END(kernel_execve)
 /* Call softirq on interrupt stack. Interrupts are off. */
 ENTRY(call_softirq)
        CFI_STARTPROC
-       push %rbp
-       CFI_ADJUST_CFA_OFFSET   8
+       pushq_cfi %rbp
        CFI_REL_OFFSET rbp,0
        mov  %rsp,%rbp
        CFI_DEF_CFA_REGISTER rbp
@@ -1224,6 +1204,7 @@ ENTRY(call_softirq)
        push  %rbp                      # backlink for old unwinder
        call __do_softirq
        leaveq
+       CFI_RESTORE             rbp
        CFI_DEF_CFA_REGISTER    rsp
        CFI_ADJUST_CFA_OFFSET   -8
        decl PER_CPU_VAR(irq_count)