1 /* Defines common perprocessor and assembly macros for use by various stubs.
2 Copyright (C) 2016-2021 Free Software Foundation, Inc.
3 Contributed by Daniel Santos <daniel.santos@pobox.com>
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 Under Section 7 of GPL version 3, you are granted additional
18 permissions described in the GCC Runtime Library Exception, version
19 3.1, as published by the Free Software Foundation.
21 You should have received a copy of the GNU General Public License and
22 a copy of the GCC Runtime Library Exception along with this program;
23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 <http://www.gnu.org/licenses/>. */
29 #include "auto-target.h"
31 #ifdef __GCC_HAVE_DWARF2_CFI_ASM
32 # define cfi_startproc() .cfi_startproc
33 # define cfi_endproc() .cfi_endproc
34 # define cfi_adjust_cfa_offset(X) .cfi_adjust_cfa_offset X
35 # define cfi_def_cfa_register(X) .cfi_def_cfa_register X
36 # define cfi_def_cfa(R,O) .cfi_def_cfa R, O
37 # define cfi_register(D,S) .cfi_register D, S
38 # define cfi_offset(R,O) .cfi_offset R, O
40 # define cfi_push(X) .cfi_adjust_cfa_offset 8; .cfi_rel_offset X, 0
41 # define cfi_pop(X) .cfi_adjust_cfa_offset -8; .cfi_restore X
43 # define cfi_push(X) .cfi_adjust_cfa_offset 4; .cfi_rel_offset X, 0
44 # define cfi_pop(X) .cfi_adjust_cfa_offset -4; .cfi_restore X
47 # define cfi_startproc()
48 # define cfi_endproc()
49 # define cfi_adjust_cfa_offset(X)
50 # define cfi_def_cfa_register(X)
51 # define cfi_def_cfa(R,O)
52 # define cfi_register(D,S)
53 # define cfi_offset(R,O)
58 #define PASTE2(a, b) PASTE2a(a, b)
59 #define PASTE2a(a, b) a ## b
61 /* These macros currently support GNU/Linux, Solaris and Darwin. */
64 # define FN_TYPE(fn) .type fn,@function
65 # define FN_SIZE(fn) .size fn,.-fn
66 # ifdef AS_HIDDEN_DIRECTIVE
67 # define FN_HIDDEN(fn) AS_HIDDEN_DIRECTIVE fn
75 # define FN_HIDDEN(fn)
78 #ifdef __USER_LABEL_PREFIX__
79 # define ASMNAME(name) PASTE2(__USER_LABEL_PREFIX__, name)
81 # define ASMNAME(name) name
84 #define FUNC_BEGIN(fn) \
86 FN_TYPE (ASMNAME(fn)); \
89 #define HIDDEN_FUNC(fn) \
91 FN_TYPE(ASMNAME(fn)); \
92 FN_HIDDEN(ASMNAME(fn)); \
95 #define FUNC_END(fn) FN_SIZE(ASMNAME(fn))
97 #ifdef MS2SYSV_STUB_AVX
98 # define MS2SYSV_STUB_PREFIX __avx_
100 # define MOVAPS vmovaps
102 #elif defined(MS2SYSV_STUB_SSE)
103 # define MS2SYSV_STUB_PREFIX __sse_
104 # define MOVAPS movaps
107 #ifdef MS2SYSV_STUB_PREFIX
109 # define MS2SYSV_STUB_BEGIN(base_name) \
110 HIDDEN_FUNC(PASTE2(MS2SYSV_STUB_PREFIX, base_name))
112 # define MS2SYSV_STUB_END(base_name) \
113 FUNC_END(PASTE2(MS2SYSV_STUB_PREFIX, base_name))
115 /* If expanding for sse or avx and we have assembler support. */
117 /* Save SSE registers 6-15 using rax as the base address. */
119 MOVAPS %xmm15,-0x30(%rax); \
120 MOVAPS %xmm14,-0x20(%rax); \
121 MOVAPS %xmm13,-0x10(%rax); \
122 MOVAPS %xmm12, (%rax); \
123 MOVAPS %xmm11, 0x10(%rax); \
124 MOVAPS %xmm10, 0x20(%rax); \
125 MOVAPS %xmm9, 0x30(%rax); \
126 MOVAPS %xmm8, 0x40(%rax); \
127 MOVAPS %xmm7, 0x50(%rax); \
128 MOVAPS %xmm6, 0x60(%rax)
130 /* Restore SSE registers 6-15 using rsi as the base address. */
131 # define SSE_RESTORE \
132 MOVAPS -0x30(%rsi), %xmm15; \
133 MOVAPS -0x20(%rsi), %xmm14; \
134 MOVAPS -0x10(%rsi), %xmm13; \
135 MOVAPS (%rsi), %xmm12; \
136 MOVAPS 0x10(%rsi), %xmm11; \
137 MOVAPS 0x20(%rsi), %xmm10; \
138 MOVAPS 0x30(%rsi), %xmm9 ; \
139 MOVAPS 0x40(%rsi), %xmm8 ; \
140 MOVAPS 0x50(%rsi), %xmm7 ; \
141 MOVAPS 0x60(%rsi), %xmm6
143 /* If the assembler doesn't support AVX then directly emit machine code
144 for the instructions above. */
146 .byte 0xc5, 0x78, 0x29, 0x78, 0xd0; /* vmovaps %xmm15,-0x30(%rax) */ \
147 .byte 0xc5, 0x78, 0x29, 0x70, 0xe0; /* vmovaps %xmm14,-0x20(%rax) */ \
148 .byte 0xc5, 0x78, 0x29, 0x68, 0xf0; /* vmovaps %xmm13,-0x10(%rax) */ \
149 .byte 0xc5, 0x78, 0x29, 0x20; /* vmovaps %xmm12, (%rax) */ \
150 .byte 0xc5, 0x78, 0x29, 0x58, 0x10; /* vmovaps %xmm11, 0x10(%rax) */ \
151 .byte 0xc5, 0x78, 0x29, 0x50, 0x20; /* vmovaps %xmm10, 0x20(%rax) */ \
152 .byte 0xc5, 0x78, 0x29, 0x48, 0x30; /* vmovaps %xmm9, 0x30(%rax) */ \
153 .byte 0xc5, 0x78, 0x29, 0x40, 0x40; /* vmovaps %xmm8, 0x40(%rax) */ \
154 .byte 0xc5, 0xf8, 0x29, 0x78, 0x50; /* vmovaps %xmm7, 0x50(%rax) */ \
155 .byte 0xc5, 0xf8, 0x29, 0x70, 0x60; /* vmovaps %xmm6, 0x60(%rax) */
156 # define SSE_RESTORE \
157 .byte 0xc5, 0x78, 0x28, 0x7e, 0xd0; /* vmovaps -0x30(%rsi),%xmm15 */ \
158 .byte 0xc5, 0x78, 0x28, 0x76, 0xe0; /* vmovaps -0x20(%rsi),%xmm14 */ \
159 .byte 0xc5, 0x78, 0x28, 0x6e, 0xf0; /* vmovaps -0x10(%rsi),%xmm13 */ \
160 .byte 0xc5, 0x78, 0x28, 0x26; /* vmovaps (%rsi),%xmm12 */ \
161 .byte 0xc5, 0x78, 0x28, 0x5e, 0x10; /* vmovaps 0x10(%rsi),%xmm11 */ \
162 .byte 0xc5, 0x78, 0x28, 0x56, 0x20; /* vmovaps 0x20(%rsi),%xmm10 */ \
163 .byte 0xc5, 0x78, 0x28, 0x4e, 0x30; /* vmovaps 0x30(%rsi),%xmm9 */ \
164 .byte 0xc5, 0x78, 0x28, 0x46, 0x40; /* vmovaps 0x40(%rsi),%xmm8 */ \
165 .byte 0xc5, 0xf8, 0x28, 0x7e, 0x50; /* vmovaps 0x50(%rsi),%xmm7 */ \
166 .byte 0xc5, 0xf8, 0x28, 0x76, 0x60; /* vmovaps 0x60(%rsi),%xmm6 */
168 #endif /* MS2SYSV_STUB_PREFIX */
169 #endif /* I386_ASM_H */