| /* Defines common perprocessor and assembly macros for use by various stubs. |
| Copyright (C) 2016-2023 Free Software Foundation, Inc. |
| Contributed by Daniel Santos <daniel.santos@pobox.com> |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef I386_ASM_H |
| #define I386_ASM_H |
| |
| #include "auto-target.h" |
| |
| #ifdef __GCC_HAVE_DWARF2_CFI_ASM |
| # define cfi_startproc() .cfi_startproc |
| # define cfi_endproc() .cfi_endproc |
| # define cfi_adjust_cfa_offset(X) .cfi_adjust_cfa_offset X |
| # define cfi_def_cfa_register(X) .cfi_def_cfa_register X |
| # define cfi_def_cfa(R,O) .cfi_def_cfa R, O |
| # define cfi_register(D,S) .cfi_register D, S |
| # define cfi_offset(R,O) .cfi_offset R, O |
| # ifdef __x86_64__ |
| # define cfi_push(X) .cfi_adjust_cfa_offset 8; .cfi_rel_offset X, 0 |
| # define cfi_pop(X) .cfi_adjust_cfa_offset -8; .cfi_restore X |
| # else |
| # define cfi_push(X) .cfi_adjust_cfa_offset 4; .cfi_rel_offset X, 0 |
| # define cfi_pop(X) .cfi_adjust_cfa_offset -4; .cfi_restore X |
| # endif |
| #else |
| # define cfi_startproc() |
| # define cfi_endproc() |
| # define cfi_adjust_cfa_offset(X) |
| # define cfi_def_cfa_register(X) |
| # define cfi_def_cfa(R,O) |
| # define cfi_register(D,S) |
| # define cfi_offset(R,O) |
| # define cfi_push(X) |
| # define cfi_pop(X) |
| #endif |
| |
| #define PASTE2(a, b) PASTE2a(a, b) |
| #define PASTE2a(a, b) a ## b |
| |
| /* These macros currently support GNU/Linux, Solaris and Darwin. */ |
| |
| #ifdef __ELF__ |
| # define FN_TYPE(fn) .type fn,@function |
| # define FN_SIZE(fn) .size fn,.-fn |
| # ifdef AS_HIDDEN_DIRECTIVE |
| # define FN_HIDDEN(fn) AS_HIDDEN_DIRECTIVE fn |
| # endif |
| #else |
| # define FN_TYPE(fn) |
| # define FN_SIZE(fn) |
| #endif |
| |
| #ifndef FN_HIDDEN |
| # define FN_HIDDEN(fn) |
| #endif |
| |
| #ifdef __USER_LABEL_PREFIX__ |
| # define ASMNAME(name) PASTE2(__USER_LABEL_PREFIX__, name) |
| #else |
| # define ASMNAME(name) name |
| #endif |
| |
| #define FUNC_BEGIN(fn) \ |
| .globl ASMNAME(fn); \ |
| FN_TYPE (ASMNAME(fn)); \ |
| ASMNAME(fn): |
| |
| #define HIDDEN_FUNC(fn) \ |
| .globl ASMNAME(fn); \ |
| FN_TYPE(ASMNAME(fn)); \ |
| FN_HIDDEN(ASMNAME(fn)); \ |
| ASMNAME(fn): |
| |
| #define FUNC_END(fn) FN_SIZE(ASMNAME(fn)) |
| |
| #ifdef MS2SYSV_STUB_AVX |
| # define MS2SYSV_STUB_PREFIX __avx_ |
| # ifdef HAVE_AS_AVX |
| # define MOVAPS vmovaps |
| # endif |
| #elif defined(MS2SYSV_STUB_SSE) |
| # define MS2SYSV_STUB_PREFIX __sse_ |
| # define MOVAPS movaps |
| #endif |
| |
| #ifdef MS2SYSV_STUB_PREFIX |
| |
| # define MS2SYSV_STUB_BEGIN(base_name) \ |
| HIDDEN_FUNC(PASTE2(MS2SYSV_STUB_PREFIX, base_name)) |
| |
| # define MS2SYSV_STUB_END(base_name) \ |
| FUNC_END(PASTE2(MS2SYSV_STUB_PREFIX, base_name)) |
| |
| /* If expanding for sse or avx and we have assembler support. */ |
| # ifdef MOVAPS |
| /* Save SSE registers 6-15 using rax as the base address. */ |
| # define SSE_SAVE \ |
| MOVAPS %xmm15,-0x30(%rax); \ |
| MOVAPS %xmm14,-0x20(%rax); \ |
| MOVAPS %xmm13,-0x10(%rax); \ |
| MOVAPS %xmm12, (%rax); \ |
| MOVAPS %xmm11, 0x10(%rax); \ |
| MOVAPS %xmm10, 0x20(%rax); \ |
| MOVAPS %xmm9, 0x30(%rax); \ |
| MOVAPS %xmm8, 0x40(%rax); \ |
| MOVAPS %xmm7, 0x50(%rax); \ |
| MOVAPS %xmm6, 0x60(%rax) |
| |
| /* Restore SSE registers 6-15 using rsi as the base address. */ |
| # define SSE_RESTORE \ |
| MOVAPS -0x30(%rsi), %xmm15; \ |
| MOVAPS -0x20(%rsi), %xmm14; \ |
| MOVAPS -0x10(%rsi), %xmm13; \ |
| MOVAPS (%rsi), %xmm12; \ |
| MOVAPS 0x10(%rsi), %xmm11; \ |
| MOVAPS 0x20(%rsi), %xmm10; \ |
| MOVAPS 0x30(%rsi), %xmm9 ; \ |
| MOVAPS 0x40(%rsi), %xmm8 ; \ |
| MOVAPS 0x50(%rsi), %xmm7 ; \ |
| MOVAPS 0x60(%rsi), %xmm6 |
| # else /* MOVAPS */ |
| /* If the assembler doesn't support AVX then directly emit machine code |
| for the instructions above. */ |
| # define SSE_SAVE \ |
| .byte 0xc5, 0x78, 0x29, 0x78, 0xd0; /* vmovaps %xmm15,-0x30(%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x70, 0xe0; /* vmovaps %xmm14,-0x20(%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x68, 0xf0; /* vmovaps %xmm13,-0x10(%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x20; /* vmovaps %xmm12, (%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x58, 0x10; /* vmovaps %xmm11, 0x10(%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x50, 0x20; /* vmovaps %xmm10, 0x20(%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x48, 0x30; /* vmovaps %xmm9, 0x30(%rax) */ \ |
| .byte 0xc5, 0x78, 0x29, 0x40, 0x40; /* vmovaps %xmm8, 0x40(%rax) */ \ |
| .byte 0xc5, 0xf8, 0x29, 0x78, 0x50; /* vmovaps %xmm7, 0x50(%rax) */ \ |
| .byte 0xc5, 0xf8, 0x29, 0x70, 0x60; /* vmovaps %xmm6, 0x60(%rax) */ |
| # define SSE_RESTORE \ |
| .byte 0xc5, 0x78, 0x28, 0x7e, 0xd0; /* vmovaps -0x30(%rsi),%xmm15 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x76, 0xe0; /* vmovaps -0x20(%rsi),%xmm14 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x6e, 0xf0; /* vmovaps -0x10(%rsi),%xmm13 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x26; /* vmovaps (%rsi),%xmm12 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x5e, 0x10; /* vmovaps 0x10(%rsi),%xmm11 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x56, 0x20; /* vmovaps 0x20(%rsi),%xmm10 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x4e, 0x30; /* vmovaps 0x30(%rsi),%xmm9 */ \ |
| .byte 0xc5, 0x78, 0x28, 0x46, 0x40; /* vmovaps 0x40(%rsi),%xmm8 */ \ |
| .byte 0xc5, 0xf8, 0x28, 0x7e, 0x50; /* vmovaps 0x50(%rsi),%xmm7 */ \ |
| .byte 0xc5, 0xf8, 0x28, 0x76, 0x60; /* vmovaps 0x60(%rsi),%xmm6 */ |
| # endif /* MOVAPS */ |
| #endif /* MS2SYSV_STUB_PREFIX */ |
| #endif /* I386_ASM_H */ |