| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Assembler macros for SH. |
| 2 | Copyright (C) 1999-2016 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <sysdeps/generic/sysdep.h> |
| 20 | |
| 21 | #ifdef __ASSEMBLER__ |
| 22 | |
| 23 | /* Syntactic details of assembler. */ |
| 24 | |
| 25 | #define ALIGNARG(log2) log2 |
| 26 | #define ASM_SIZE_DIRECTIVE(name) .size name,.-name |
| 27 | |
| 28 | #ifdef SHARED |
| 29 | #define PLTJMP(_x) _x##@PLT |
| 30 | #else |
| 31 | #define PLTJMP(_x) _x |
| 32 | #endif |
| 33 | |
| 34 | |
| 35 | /* Define an entry point visible from C. */ |
| 36 | #define ENTRY(name) \ |
| 37 | .globl C_SYMBOL_NAME(name); \ |
| 38 | .type C_SYMBOL_NAME(name),@function; \ |
| 39 | .align ALIGNARG(5); \ |
| 40 | C_LABEL(name) \ |
| 41 | cfi_startproc; \ |
| 42 | CALL_MCOUNT |
| 43 | |
| 44 | #undef END |
| 45 | #define END(name) \ |
| 46 | cfi_endproc; \ |
| 47 | ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(name)) |
| 48 | |
| 49 | /* If compiled for profiling, call `mcount' at the start of each function. */ |
| 50 | #ifdef PROF |
| 51 | #define CALL_MCOUNT \ |
| 52 | mov.l 1f,r1; \ |
| 53 | sts.l pr,@-r15; \ |
| 54 | cfi_adjust_cfa_offset (4); \ |
| 55 | cfi_rel_offset (pr, 0); \ |
| 56 | mova 2f,r0; \ |
| 57 | jmp @r1; \ |
| 58 | lds r0,pr; \ |
| 59 | .align 2; \ |
| 60 | 1: .long mcount; \ |
| 61 | 2: lds.l @r15+,pr; \ |
| 62 | cfi_adjust_cfa_offset (-4); \ |
| 63 | cfi_restore (pr) |
| 64 | |
| 65 | #else |
| 66 | #define CALL_MCOUNT /* Do nothing. */ |
| 67 | #endif |
| 68 | |
| 69 | /* Since C identifiers are not normally prefixed with an underscore |
| 70 | on this system, the asm identifier `syscall_error' intrudes on the |
| 71 | C name space. Make sure we use an innocuous name. */ |
| 72 | #define syscall_error __syscall_error |
| 73 | #define mcount _mcount |
| 74 | |
| 75 | #endif /* __ASSEMBLER__ */ |