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1 | /* Assembler macros for SH. |
---|---|
2 | Copyright (C) 1999-2022 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 | <https://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__ */ |
76 |
Warning: That file was not part of the compilation database. It may have many parsing errors.