/* Assembly macros for 32-bit PowerPC.
- Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifdef __ASSEMBLER__
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#include <sysdeps/powerpc/sysdep.h>
-#ifdef __ELF__
+#ifdef __ASSEMBLER__
/* If compiled for profiling, call `_mcount' at the start of each
function. */
/* The mcount code relies on a the return address being on the stack
to locate our caller and so it can restore it; so store one just
for its benefit. */
-# ifdef PIC
-# define CALL_MCOUNT \
- .pushsection; \
- .section ".data"; \
- .align ALIGNARG(2); \
-0:.long 0; \
- .previous; \
- mflr r0; \
- stw r0,4(r1); \
- bl _GLOBAL_OFFSET_TABLE_@local-4; \
- mflr r11; \
- lwz r0,0b@got(r11); \
- bl JUMPTARGET(_mcount);
-# else /* PIC */
-# define CALL_MCOUNT \
- .section ".data"; \
- .align ALIGNARG(2); \
-0:.long 0; \
- .previous; \
+# define CALL_MCOUNT \
mflr r0; \
- lis r11,0b@ha; \
- stw r0,4(r1); \
- addi r0,r11,0b@l; \
+ stw r0,4(r1); \
+ cfi_offset (lr, 4); \
bl JUMPTARGET(_mcount);
-# endif /* PIC */
#else /* PROF */
# define CALL_MCOUNT /* Do nothing. */
#endif /* PROF */
#define ENTRY(name) \
- ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
- ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
+ .globl C_SYMBOL_NAME(name); \
+ .type C_SYMBOL_NAME(name),@function; \
.align ALIGNARG(2); \
C_LABEL(name) \
+ cfi_startproc; \
CALL_MCOUNT
+/* helper macro for accessing the 32-bit powerpc GOT. */
+
+#define SETUP_GOT_ACCESS(regname,GOT_LABEL) \
+ bcl 20,31,GOT_LABEL ; \
+GOT_LABEL: ; \
+ mflr (regname)
+
#define EALIGN_W_0 /* No words to insert. */
#define EALIGN_W_1 nop
#define EALIGN_W_2 nop;nop
past a 2^align boundary. */
#ifdef PROF
# define EALIGN(name, alignt, words) \
- ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
- ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
+ .globl C_SYMBOL_NAME(name); \
+ .type C_SYMBOL_NAME(name),@function; \
.align ALIGNARG(2); \
C_LABEL(name) \
+ cfi_startproc; \
CALL_MCOUNT \
b 0f; \
.align ALIGNARG(alignt); \
0:
#else /* PROF */
# define EALIGN(name, alignt, words) \
- ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
- ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
+ .globl C_SYMBOL_NAME(name); \
+ .type C_SYMBOL_NAME(name),@function; \
.align ALIGNARG(alignt); \
EALIGN_W_##words; \
- C_LABEL(name)
+ C_LABEL(name) \
+ cfi_startproc;
#endif
#undef END
#define END(name) \
+ cfi_endproc; \
ASM_SIZE_DIRECTIVE(name)
-#define DO_CALL(syscall) \
- li 0,syscall; \
+#define DO_CALL(syscall) \
+ li 0,syscall; \
sc
#undef JUMPTARGET
#endif
#if defined SHARED && defined DO_VERSIONING && defined PIC \
- && !defined HAVE_BROKEN_ALIAS_ATTRIBUTE && !defined NO_HIDDEN
+ && !defined NO_HIDDEN
# undef HIDDEN_JUMPTARGET
# define HIDDEN_JUMPTARGET(name) __GI_##name##@local
#endif
#define PSEUDO_RET \
bnslr+; \
- b JUMPTARGET(__syscall_error)
+ b __syscall_error@local
#define ret PSEUDO_RET
#undef PSEUDO_END
#define PSEUDO_END(name) \
END (name)
+#define PSEUDO_NOERRNO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET_NOERRNO \
+ blr
+#define ret_NOERRNO PSEUDO_RET_NOERRNO
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(name) \
+ END (name)
+
+#define PSEUDO_ERRVAL(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ DO_CALL (SYS_ify (syscall_name));
+
+#define PSEUDO_RET_ERRVAL \
+ blr
+#define ret_ERRVAL PSEUDO_RET_ERRVAL
+
+#undef PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name) \
+ END (name)
+
/* Local labels stripped out by the linker. */
#undef L
#define L(x) .L##x
+#define XGLUE(a,b) a##b
+#define GLUE(a,b) XGLUE (a,b)
+#define GENERATE_GOT_LABEL(name) GLUE (.got_label, name)
+
/* Label in text section. */
#define C_TEXT(name) name
-#endif /* __ELF__ */
-
#endif /* __ASSEMBLER__ */
projects / thirdparty / glibc.git / blobdiff