1 /* Assembly macros for 32-bit PowerPC.
2 Copyright (C) 1999-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <sysdeps/powerpc/sysdep.h>
23 /* If compiled for profiling, call `_mcount' at the start of each
26 /* The mcount code relies on a the return address being on the stack
27 to locate our caller and so it can restore it; so store one just
29 # define CALL_MCOUNT \
33 bl JUMPTARGET(_mcount);
35 # define CALL_MCOUNT /* Do nothing. */
39 .globl C_SYMBOL_NAME(name); \
40 .type C_SYMBOL_NAME(name),@function; \
46 /* helper macro for accessing the 32-bit powerpc GOT. */
48 #define SETUP_GOT_ACCESS(regname,GOT_LABEL) \
49 bcl 20,31,GOT_LABEL ; \
53 #define EALIGN_W_0 /* No words to insert. */
54 #define EALIGN_W_1 nop
55 #define EALIGN_W_2 nop;nop
56 #define EALIGN_W_3 nop;nop;nop
57 #define EALIGN_W_4 EALIGN_W_3;nop
58 #define EALIGN_W_5 EALIGN_W_4;nop
59 #define EALIGN_W_6 EALIGN_W_5;nop
60 #define EALIGN_W_7 EALIGN_W_6;nop
62 /* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
63 past a 2^align boundary. */
65 # define EALIGN(name, alignt, words) \
66 .globl C_SYMBOL_NAME(name); \
67 .type C_SYMBOL_NAME(name),@function; \
73 .align ALIGNARG(alignt); \
77 # define EALIGN(name, alignt, words) \
78 .globl C_SYMBOL_NAME(name); \
79 .type C_SYMBOL_NAME(name),@function; \
80 .align ALIGNARG(alignt); \
89 ASM_SIZE_DIRECTIVE(name)
91 #define DO_CALL(syscall) \
97 # define JUMPTARGET(name) name##@plt
99 # define JUMPTARGET(name) name
102 #if defined SHARED && defined PIC && !defined NO_HIDDEN
103 # undef HIDDEN_JUMPTARGET
104 # define HIDDEN_JUMPTARGET(name) __GI_##name##@local
107 #define PSEUDO(name, syscall_name, args) \
110 DO_CALL (SYS_ify (syscall_name));
114 b __syscall_error@local
115 #define ret PSEUDO_RET
118 #define PSEUDO_END(name) \
121 #define PSEUDO_NOERRNO(name, syscall_name, args) \
124 DO_CALL (SYS_ify (syscall_name));
126 #define PSEUDO_RET_NOERRNO \
128 #define ret_NOERRNO PSEUDO_RET_NOERRNO
130 #undef PSEUDO_END_NOERRNO
131 #define PSEUDO_END_NOERRNO(name) \
134 #define PSEUDO_ERRVAL(name, syscall_name, args) \
137 DO_CALL (SYS_ify (syscall_name));
139 #define PSEUDO_RET_ERRVAL \
141 #define ret_ERRVAL PSEUDO_RET_ERRVAL
143 #undef PSEUDO_END_ERRVAL
144 #define PSEUDO_END_ERRVAL(name) \
147 /* Local labels stripped out by the linker. */
151 #define XGLUE(a,b) a##b
152 #define GLUE(a,b) XGLUE (a,b)
153 #define GENERATE_GOT_LABEL(name) GLUE (.got_label, name)
155 /* Label in text section. */
156 #define C_TEXT(name) name
158 #endif /* __ASSEMBLER__ */