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Location: vmkdrivers/BLD/build/HEADERS/92-vmkdrivers-asm-x64/vmkernel64/release/asm/calling.h
95e39e5412bd
3.0 KiB
text/x-chdr
ESXi-6.0-GA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | /*
* 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
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