diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/calling.h | 94 | ||||
| -rw-r--r-- | arch/x86/include/asm/dwarf2.h | 170 | ||||
| -rw-r--r-- | arch/x86/include/asm/frame.h | 7 |
3 files changed, 47 insertions, 224 deletions
diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h index 1c8b50edb2db..0d76accde45b 100644 --- a/arch/x86/include/asm/calling.h +++ b/arch/x86/include/asm/calling.h @@ -46,8 +46,6 @@ For 32-bit we have the following conventions - kernel is built with */ -#include <asm/dwarf2.h> - #ifdef CONFIG_X86_64 /* @@ -92,27 +90,26 @@ For 32-bit we have the following conventions - kernel is built with .macro ALLOC_PT_GPREGS_ON_STACK addskip=0 subq $15*8+\addskip, %rsp - CFI_ADJUST_CFA_OFFSET 15*8+\addskip .endm .macro SAVE_C_REGS_HELPER offset=0 rax=1 rcx=1 r8910=1 r11=1 .if \r11 - movq_cfi r11, 6*8+\offset + movq %r11, 6*8+\offset(%rsp) .endif .if \r8910 - movq_cfi r10, 7*8+\offset - movq_cfi r9, 8*8+\offset - movq_cfi r8, 9*8+\offset + movq %r10, 7*8+\offset(%rsp) + movq %r9, 8*8+\offset(%rsp) + movq %r8, 9*8+\offset(%rsp) .endif .if \rax - movq_cfi rax, 10*8+\offset + movq %rax, 10*8+\offset(%rsp) .endif .if \rcx - movq_cfi rcx, 11*8+\offset + movq %rcx, 11*8+\offset(%rsp) .endif - movq_cfi rdx, 12*8+\offset - movq_cfi rsi, 13*8+\offset - movq_cfi rdi, 14*8+\offset + movq %rdx, 12*8+\offset(%rsp) + movq %rsi, 13*8+\offset(%rsp) + movq %rdi, 14*8+\offset(%rsp) .endm .macro SAVE_C_REGS offset=0 SAVE_C_REGS_HELPER \offset, 1, 1, 1, 1 @@ -131,24 +128,24 @@ For 32-bit we have the following conventions - kernel is built with .endm .macro SAVE_EXTRA_REGS offset=0 - movq_cfi r15, 0*8+\offset - movq_cfi r14, 1*8+\offset - movq_cfi r13, 2*8+\offset - movq_cfi r12, 3*8+\offset - movq_cfi rbp, 4*8+\offset - movq_cfi rbx, 5*8+\offset + movq %r15, 0*8+\offset(%rsp) + movq %r14, 1*8+\offset(%rsp) + movq %r13, 2*8+\offset(%rsp) + movq %r12, 3*8+\offset(%rsp) + movq %rbp, 4*8+\offset(%rsp) + movq %rbx, 5*8+\offset(%rsp) .endm .macro SAVE_EXTRA_REGS_RBP offset=0 - movq_cfi rbp, 4*8+\offset + movq %rbp, 4*8+\offset(%rsp) .endm .macro RESTORE_EXTRA_REGS offset=0 - movq_cfi_restore 0*8+\offset, r15 - movq_cfi_restore 1*8+\offset, r14 - movq_cfi_restore 2*8+\offset, r13 - movq_cfi_restore 3*8+\offset, r12 - movq_cfi_restore 4*8+\offset, rbp - movq_cfi_restore 5*8+\offset, rbx + movq 0*8+\offset(%rsp), %r15 + movq 1*8+\offset(%rsp), %r14 + movq 2*8+\offset(%rsp), %r13 + movq 3*8+\offset(%rsp), %r12 + movq 4*8+\offset(%rsp), %rbp + movq 5*8+\offset(%rsp), %rbx .endm .macro ZERO_EXTRA_REGS @@ -162,24 +159,24 @@ For 32-bit we have the following conventions - kernel is built with .macro RESTORE_C_REGS_HELPER rstor_rax=1, rstor_rcx=1, rstor_r11=1, rstor_r8910=1, rstor_rdx=1 .if \rstor_r11 - movq_cfi_restore 6*8, r11 + movq 6*8(%rsp), %r11 .endif .if \rstor_r8910 - movq_cfi_restore 7*8, r10 - movq_cfi_restore 8*8, r9 - movq_cfi_restore 9*8, r8 + movq 7*8(%rsp), %r10 + movq 8*8(%rsp), %r9 + movq 9*8(%rsp), %r8 .endif .if \rstor_rax - movq_cfi_restore 10*8, rax + movq 10*8(%rsp), %rax .endif .if \rstor_rcx - movq_cfi_restore 11*8, rcx + movq 11*8(%rsp), %rcx .endif .if \rstor_rdx - movq_cfi_restore 12*8, rdx + movq 12*8(%rsp), %rdx .endif - movq_cfi_restore 13*8, rsi - movq_cfi_restore 14*8, rdi + movq 13*8(%rsp), %rsi + movq 14*8(%rsp), %rdi .endm .macro RESTORE_C_REGS RESTORE_C_REGS_HELPER 1,1,1,1,1 @@ -205,7 +202,6 @@ For 32-bit we have the following conventions - kernel is built with .macro REMOVE_PT_GPREGS_FROM_STACK addskip=0 addq $15*8+\addskip, %rsp - CFI_ADJUST_CFA_OFFSET -(15*8+\addskip) .endm .macro icebp @@ -224,23 +220,23 @@ For 32-bit we have the following conventions - kernel is built with */ .macro SAVE_ALL - pushl_cfi_reg eax - pushl_cfi_reg ebp - pushl_cfi_reg edi - pushl_cfi_reg esi - pushl_cfi_reg edx - pushl_cfi_reg ecx - pushl_cfi_reg ebx + pushl %eax + pushl %ebp + pushl %edi + pushl %esi + pushl %edx + pushl %ecx + pushl %ebx .endm .macro RESTORE_ALL - popl_cfi_reg ebx - popl_cfi_reg ecx - popl_cfi_reg edx - popl_cfi_reg esi - popl_cfi_reg edi - popl_cfi_reg ebp - popl_cfi_reg eax + popl %ebx + popl %ecx + popl %edx + popl %esi + popl %edi + popl %ebp + popl %eax .endm #endif /* CONFIG_X86_64 */ diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h deleted file mode 100644 index de1cdaf4d743..000000000000 --- a/arch/x86/include/asm/dwarf2.h +++ /dev/null @@ -1,170 +0,0 @@ -#ifndef _ASM_X86_DWARF2_H -#define _ASM_X86_DWARF2_H - -#ifndef __ASSEMBLY__ -#warning "asm/dwarf2.h should be only included in pure assembly files" -#endif - -/* - * Macros for dwarf2 CFI unwind table entries. - * See "as.info" for details on these pseudo ops. Unfortunately - * they are only supported in very new binutils, so define them - * away for older version. - */ - -#ifdef CONFIG_AS_CFI - -#define CFI_STARTPROC .cfi_startproc -#define CFI_ENDPROC .cfi_endproc -#define CFI_DEF_CFA .cfi_def_cfa -#define CFI_DEF_CFA_REGISTER .cfi_def_cfa_register -#define CFI_DEF_CFA_OFFSET .cfi_def_cfa_offset -#define CFI_ADJUST_CFA_OFFSET .cfi_adjust_cfa_offset -#define CFI_OFFSET .cfi_offset -#define CFI_REL_OFFSET .cfi_rel_offset -#define CFI_REGISTER .cfi_register -#define CFI_RESTORE .cfi_restore -#define CFI_REMEMBER_STATE .cfi_remember_state -#define CFI_RESTORE_STATE .cfi_restore_state -#define CFI_UNDEFINED .cfi_undefined -#define CFI_ESCAPE .cfi_escape - -#ifdef CONFIG_AS_CFI_SIGNAL_FRAME -#define CFI_SIGNAL_FRAME .cfi_signal_frame -#else -#define CFI_SIGNAL_FRAME -#endif - -#if defined(CONFIG_AS_CFI_SECTIONS) && defined(__ASSEMBLY__) - /* - * Emit CFI data in .debug_frame sections, not .eh_frame sections. - * The latter we currently just discard since we don't do DWARF - * unwinding at runtime. So only the offline DWARF information is - * useful to anyone. Note we should not use this directive if this - * file is used in the vDSO assembly, or if vmlinux.lds.S gets - * changed so it doesn't discard .eh_frame. - */ - .cfi_sections .debug_frame -#endif - -#else - -/* - * Due to the structure of pre-exisiting code, don't use assembler line - * comment character # to ignore the arguments. Instead, use a dummy macro. - */ -.macro cfi_ignore a=0, b=0, c=0, d=0 -.endm - -#define CFI_STARTPROC cfi_ignore -#define CFI_ENDPROC cfi_ignore -#define CFI_DEF_CFA cfi_ignore -#define CFI_DEF_CFA_REGISTER cfi_ignore -#define CFI_DEF_CFA_OFFSET cfi_ignore -#define CFI_ADJUST_CFA_OFFSET cfi_ignore -#define CFI_OFFSET cfi_ignore -#define CFI_REL_OFFSET cfi_ignore -#define CFI_REGISTER cfi_ignore -#define CFI_RESTORE cfi_ignore -#define CFI_REMEMBER_STATE cfi_ignore -#define CFI_RESTORE_STATE cfi_ignore -#define CFI_UNDEFINED cfi_ignore -#define CFI_ESCAPE cfi_ignore -#define CFI_SIGNAL_FRAME cfi_ignore - -#endif - -/* - * An attempt to make CFI annotations more or less - * correct and shorter. It is implied that you know - * what you're doing if you use them. - */ -#ifdef __ASSEMBLY__ -#ifdef CONFIG_X86_64 - .macro pushq_cfi reg - pushq \reg - CFI_ADJUST_CFA_OFFSET 8 - .endm - - .macro pushq_cfi_reg reg - pushq %\reg - CFI_ADJUST_CFA_OFFSET 8 - CFI_REL_OFFSET \reg, 0 - .endm - - .macro popq_cfi reg - popq \reg - CFI_ADJUST_CFA_OFFSET -8 - .endm - - .macro popq_cfi_reg reg - popq %\reg - CFI_ADJUST_CFA_OFFSET -8 - CFI_RESTORE \reg - .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 - .endm - - .macro movq_cfi_restore offset reg - movq \offset(%rsp), %\reg - CFI_RESTORE \reg - .endm -#else /*!CONFIG_X86_64*/ - .macro pushl_cfi reg - pushl \reg - CFI_ADJUST_CFA_OFFSET 4 - .endm - - .macro pushl_cfi_reg reg - pushl %\reg - CFI_ADJUST_CFA_OFFSET 4 - CFI_REL_OFFSET \reg, 0 - .endm - - .macro popl_cfi reg - popl \reg - CFI_ADJUST_CFA_OFFSET -4 - .endm - - .macro popl_cfi_reg reg - popl %\reg - CFI_ADJUST_CFA_OFFSET -4 - CFI_RESTORE \reg - .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 - .endm - - .macro movl_cfi_restore offset reg - movl \offset(%esp), %\reg - CFI_RESTORE \reg - .endm -#endif /*!CONFIG_X86_64*/ -#endif /*__ASSEMBLY__*/ - -#endif /* _ASM_X86_DWARF2_H */ diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h index 3b629f47eb65..793179cf8e21 100644 --- a/arch/x86/include/asm/frame.h +++ b/arch/x86/include/asm/frame.h @@ -1,20 +1,17 @@ #ifdef __ASSEMBLY__ #include <asm/asm.h> -#include <asm/dwarf2.h> /* The annotation hides the frame from the unwinder and makes it look like a ordinary ebp save/restore. This avoids some special cases for frame pointer later */ #ifdef CONFIG_FRAME_POINTER .macro FRAME - __ASM_SIZE(push,_cfi) %__ASM_REG(bp) - CFI_REL_OFFSET __ASM_REG(bp), 0 + __ASM_SIZE(push,) %__ASM_REG(bp) __ASM_SIZE(mov) %__ASM_REG(sp), %__ASM_REG(bp) .endm .macro ENDFRAME - __ASM_SIZE(pop,_cfi) %__ASM_REG(bp) - CFI_RESTORE __ASM_REG(bp) + __ASM_SIZE(pop,) %__ASM_REG(bp) .endm #else .macro FRAME |