diff options
Diffstat (limited to 'include/asm-x86/calling.h')
| -rw-r--r-- | include/asm-x86/calling.h | 194 |
1 files changed, 100 insertions, 94 deletions
diff --git a/include/asm-x86/calling.h b/include/asm-x86/calling.h index 6f4f63af96e1..f13e62e2cb3e 100644 --- a/include/asm-x86/calling.h +++ b/include/asm-x86/calling.h @@ -1,162 +1,168 @@ -/* +/* * Some macros to handle stack frames in assembly. - */ + */ +#define R15 0 +#define R14 8 +#define R13 16 +#define R12 24 +#define RBP 32 +#define RBX 40 -#define R15 0 -#define R14 8 -#define R13 16 -#define R12 24 -#define RBP 32 -#define RBX 40 /* arguments: interrupts/non tracing syscalls only save upto here*/ -#define R11 48 -#define R10 56 -#define R9 64 -#define R8 72 -#define RAX 80 -#define RCX 88 -#define RDX 96 -#define RSI 104 -#define RDI 112 -#define ORIG_RAX 120 /* + error_code */ -/* end of arguments */ +#define R11 48 +#define R10 56 +#define R9 64 +#define R8 72 +#define RAX 80 +#define RCX 88 +#define RDX 96 +#define RSI 104 +#define RDI 112 +#define ORIG_RAX 120 /* + error_code */ +/* end of arguments */ + /* cpu exception frame or undefined in case of fast syscall. */ -#define RIP 128 -#define CS 136 -#define EFLAGS 144 -#define RSP 152 -#define SS 160 -#define ARGOFFSET R11 -#define SWFRAME ORIG_RAX +#define RIP 128 +#define CS 136 +#define EFLAGS 144 +#define RSP 152 +#define SS 160 + +#define ARGOFFSET R11 +#define SWFRAME ORIG_RAX - .macro SAVE_ARGS addskip=0,norcx=0,nor891011=0 - subq $9*8+\addskip,%rsp + .macro SAVE_ARGS addskip=0, norcx=0, nor891011=0 + subq $9*8+\addskip, %rsp CFI_ADJUST_CFA_OFFSET 9*8+\addskip - movq %rdi,8*8(%rsp) - CFI_REL_OFFSET rdi,8*8 - movq %rsi,7*8(%rsp) - CFI_REL_OFFSET rsi,7*8 - movq %rdx,6*8(%rsp) - CFI_REL_OFFSET rdx,6*8 + movq %rdi, 8*8(%rsp) + CFI_REL_OFFSET rdi, 8*8 + movq %rsi, 7*8(%rsp) + CFI_REL_OFFSET rsi, 7*8 + movq %rdx, 6*8(%rsp) + CFI_REL_OFFSET rdx, 6*8 .if \norcx .else - movq %rcx,5*8(%rsp) - CFI_REL_OFFSET rcx,5*8 + movq %rcx, 5*8(%rsp) + CFI_REL_OFFSET rcx, 5*8 .endif - movq %rax,4*8(%rsp) - CFI_REL_OFFSET rax,4*8 + movq %rax, 4*8(%rsp) + CFI_REL_OFFSET rax, 4*8 .if \nor891011 .else - movq %r8,3*8(%rsp) - CFI_REL_OFFSET r8,3*8 - movq %r9,2*8(%rsp) - CFI_REL_OFFSET r9,2*8 - movq %r10,1*8(%rsp) - CFI_REL_OFFSET r10,1*8 - movq %r11,(%rsp) - CFI_REL_OFFSET r11,0*8 + movq %r8, 3*8(%rsp) + CFI_REL_OFFSET r8, 3*8 + movq %r9, 2*8(%rsp) + CFI_REL_OFFSET r9, 2*8 + movq %r10, 1*8(%rsp) + CFI_REL_OFFSET r10, 1*8 + movq %r11, (%rsp) + CFI_REL_OFFSET r11, 0*8 .endif .endm -#define ARG_SKIP 9*8 - .macro RESTORE_ARGS skiprax=0,addskip=0,skiprcx=0,skipr11=0,skipr8910=0,skiprdx=0 +#define ARG_SKIP 9*8 + + .macro RESTORE_ARGS skiprax=0, addskip=0, skiprcx=0, skipr11=0, \ + skipr8910=0, skiprdx=0 .if \skipr11 .else - movq (%rsp),%r11 + movq (%rsp), %r11 CFI_RESTORE r11 .endif .if \skipr8910 .else - movq 1*8(%rsp),%r10 + movq 1*8(%rsp), %r10 CFI_RESTORE r10 - movq 2*8(%rsp),%r9 + movq 2*8(%rsp), %r9 CFI_RESTORE r9 - movq 3*8(%rsp),%r8 + movq 3*8(%rsp), %r8 CFI_RESTORE r8 .endif .if \skiprax .else - movq 4*8(%rsp),%rax + movq 4*8(%rsp), %rax CFI_RESTORE rax .endif .if \skiprcx .else - movq 5*8(%rsp),%rcx + movq 5*8(%rsp), %rcx CFI_RESTORE rcx .endif .if \skiprdx .else - movq 6*8(%rsp),%rdx + movq 6*8(%rsp), %rdx CFI_RESTORE rdx .endif - movq 7*8(%rsp),%rsi + movq 7*8(%rsp), %rsi CFI_RESTORE rsi - movq 8*8(%rsp),%rdi + movq 8*8(%rsp), %rdi CFI_RESTORE rdi .if ARG_SKIP+\addskip > 0 - addq $ARG_SKIP+\addskip,%rsp + addq $ARG_SKIP+\addskip, %rsp CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip) .endif - .endm + .endm .macro LOAD_ARGS offset - movq \offset(%rsp),%r11 - movq \offset+8(%rsp),%r10 - movq \offset+16(%rsp),%r9 - movq \offset+24(%rsp),%r8 - movq \offset+40(%rsp),%rcx - movq \offset+48(%rsp),%rdx - movq \offset+56(%rsp),%rsi - movq \offset+64(%rsp),%rdi - movq \offset+72(%rsp),%rax + movq \offset(%rsp), %r11 + movq \offset+8(%rsp), %r10 + movq \offset+16(%rsp), %r9 + movq \offset+24(%rsp), %r8 + movq \offset+40(%rsp), %rcx + movq \offset+48(%rsp), %rdx + movq \offset+56(%rsp), %rsi + movq \offset+64(%rsp), %rdi + movq \offset+72(%rsp), %rax .endm - -#define REST_SKIP 6*8 + +#define REST_SKIP 6*8 + .macro SAVE_REST - subq $REST_SKIP,%rsp + subq $REST_SKIP, %rsp CFI_ADJUST_CFA_OFFSET REST_SKIP - movq %rbx,5*8(%rsp) - CFI_REL_OFFSET rbx,5*8 - movq %rbp,4*8(%rsp) - CFI_REL_OFFSET rbp,4*8 - movq %r12,3*8(%rsp) - CFI_REL_OFFSET r12,3*8 - movq %r13,2*8(%rsp) - CFI_REL_OFFSET r13,2*8 - movq %r14,1*8(%rsp) - CFI_REL_OFFSET r14,1*8 - movq %r15,(%rsp) - CFI_REL_OFFSET r15,0*8 - .endm + movq %rbx, 5*8(%rsp) + CFI_REL_OFFSET rbx, 5*8 + movq %rbp, 4*8(%rsp) + CFI_REL_OFFSET rbp, 4*8 + movq %r12, 3*8(%rsp) + CFI_REL_OFFSET r12, 3*8 + movq %r13, 2*8(%rsp) + CFI_REL_OFFSET r13, 2*8 + movq %r14, 1*8(%rsp) + CFI_REL_OFFSET r14, 1*8 + movq %r15, (%rsp) + CFI_REL_OFFSET r15, 0*8 + .endm .macro RESTORE_REST - movq (%rsp),%r15 + movq (%rsp), %r15 CFI_RESTORE r15 - movq 1*8(%rsp),%r14 + movq 1*8(%rsp), %r14 CFI_RESTORE r14 - movq 2*8(%rsp),%r13 + movq 2*8(%rsp), %r13 CFI_RESTORE r13 - movq 3*8(%rsp),%r12 + movq 3*8(%rsp), %r12 CFI_RESTORE r12 - movq 4*8(%rsp),%rbp + movq 4*8(%rsp), %rbp CFI_RESTORE rbp - movq 5*8(%rsp),%rbx + movq 5*8(%rsp), %rbx CFI_RESTORE rbx - addq $REST_SKIP,%rsp + addq $REST_SKIP, %rsp CFI_ADJUST_CFA_OFFSET -(REST_SKIP) .endm - + .macro SAVE_ALL SAVE_ARGS SAVE_REST .endm - + .macro RESTORE_ALL addskip=0 RESTORE_REST - RESTORE_ARGS 0,\addskip + RESTORE_ARGS 0, \addskip .endm .macro icebp .byte 0xf1 .endm + |