1
/* -----------------------------------------------------------------------
2
asm.h - Copyright (c) 1998 Geoffrey Keating
6
Permission is hereby granted, free of charge, to any person obtaining
7
a copy of this software and associated documentation files (the
8
``Software''), to deal in the Software without restriction, including
9
without limitation the rights to use, copy, modify, merge, publish,
10
distribute, sublicense, and/or sell copies of the Software, and to
11
permit persons to whom the Software is furnished to do so, subject to
12
the following conditions:
14
The above copyright notice and this permission notice shall be included
15
in all copies or substantial portions of the Software.
17
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
18
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR
21
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23
OTHER DEALINGS IN THE SOFTWARE.
24
----------------------------------------------------------------------- */
26
#define ASM_GLOBAL_DIRECTIVE .globl
29
#define C_SYMBOL_NAME(name) name
30
/* Macro for a label. */
32
#define C_LABEL(name) name##:
34
#define C_LABEL(name) name/**/:
37
/* This seems to always be the case on PPC. */
38
#define ALIGNARG(log2) log2
39
/* For ELF we need the `.type' directive to make shared libs work right. */
40
#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
41
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
43
/* If compiled for profiling, call `_mcount' at the start of each function. */
45
/* The mcount code relies on a the return address being on the stack
46
to locate our caller and so it can restore it; so store one just
57
bl _GLOBAL_OFFSET_TABLE_@local-4; \
59
lwz %r0,0b@got(%r11); \
60
bl JUMPTARGET(_mcount);
71
bl JUMPTARGET(_mcount);
74
#define CALL_MCOUNT /* Do nothing. */
78
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
79
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
84
#define EALIGN_W_0 /* No words to insert. */
85
#define EALIGN_W_1 nop
86
#define EALIGN_W_2 nop;nop
87
#define EALIGN_W_3 nop;nop;nop
88
#define EALIGN_W_4 EALIGN_W_3;nop
89
#define EALIGN_W_5 EALIGN_W_4;nop
90
#define EALIGN_W_6 EALIGN_W_5;nop
91
#define EALIGN_W_7 EALIGN_W_6;nop
93
/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
94
past a 2^align boundary. */
96
#define EALIGN(name, alignt, words) \
97
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
98
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
103
.align ALIGNARG(alignt); \
107
#define EALIGN(name, alignt, words) \
108
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
109
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
110
.align ALIGNARG(alignt); \
116
ASM_SIZE_DIRECTIVE(name)
119
#define JUMPTARGET(name) name##@plt
121
#define JUMPTARGET(name) name
124
/* Local labels stripped out by the linker. */
added
removed
libffi/src/powerpc/asm.h
