0c2bd5a5e3
clean up include/asm-x86/calling.h. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
168 lines
3.1 KiB
C
168 lines
3.1 KiB
C
/*
|
|
* 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
|
|
|
|
/* 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 */
|
|
|
|
/* 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
|
|
|
|
.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
|
|
.if \norcx
|
|
.else
|
|
movq %rcx, 5*8(%rsp)
|
|
CFI_REL_OFFSET rcx, 5*8
|
|
.endif
|
|
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
|
|
.endif
|
|
.endm
|
|
|
|
#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
|
|
CFI_RESTORE r11
|
|
.endif
|
|
.if \skipr8910
|
|
.else
|
|
movq 1*8(%rsp), %r10
|
|
CFI_RESTORE r10
|
|
movq 2*8(%rsp), %r9
|
|
CFI_RESTORE r9
|
|
movq 3*8(%rsp), %r8
|
|
CFI_RESTORE r8
|
|
.endif
|
|
.if \skiprax
|
|
.else
|
|
movq 4*8(%rsp), %rax
|
|
CFI_RESTORE rax
|
|
.endif
|
|
.if \skiprcx
|
|
.else
|
|
movq 5*8(%rsp), %rcx
|
|
CFI_RESTORE rcx
|
|
.endif
|
|
.if \skiprdx
|
|
.else
|
|
movq 6*8(%rsp), %rdx
|
|
CFI_RESTORE rdx
|
|
.endif
|
|
movq 7*8(%rsp), %rsi
|
|
CFI_RESTORE rsi
|
|
movq 8*8(%rsp), %rdi
|
|
CFI_RESTORE rdi
|
|
.if ARG_SKIP+\addskip > 0
|
|
addq $ARG_SKIP+\addskip, %rsp
|
|
CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip)
|
|
.endif
|
|
.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
|
|
.endm
|
|
|
|
#define REST_SKIP 6*8
|
|
|
|
.macro SAVE_REST
|
|
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
|
|
|
|
.macro RESTORE_REST
|
|
movq (%rsp), %r15
|
|
CFI_RESTORE r15
|
|
movq 1*8(%rsp), %r14
|
|
CFI_RESTORE r14
|
|
movq 2*8(%rsp), %r13
|
|
CFI_RESTORE r13
|
|
movq 3*8(%rsp), %r12
|
|
CFI_RESTORE r12
|
|
movq 4*8(%rsp), %rbp
|
|
CFI_RESTORE rbp
|
|
movq 5*8(%rsp), %rbx
|
|
CFI_RESTORE rbx
|
|
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
|
|
.endm
|
|
|
|
.macro icebp
|
|
.byte 0xf1
|
|
.endm
|
|
|