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Diffstat (limited to 'sysdeps/powerpc/powerpc64/sysdep.h')
-rw-r--r--sysdeps/powerpc/powerpc64/sysdep.h201
1 files changed, 112 insertions, 89 deletions
diff --git a/sysdeps/powerpc/powerpc64/sysdep.h b/sysdeps/powerpc/powerpc64/sysdep.h
index 29c1c2c36c..4420a6dfac 100644
--- a/sysdeps/powerpc/powerpc64/sysdep.h
+++ b/sysdeps/powerpc/powerpc64/sysdep.h
@@ -1,5 +1,5 @@
/* Assembly macros for 64-bit PowerPC.
- Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004 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
@@ -19,9 +19,10 @@
#include <sysdeps/powerpc/sysdep.h>
+#ifdef __ELF__
+
#ifdef __ASSEMBLER__
-#ifdef __ELF__
/* If compiled for profiling, call `_mcount' at the start of each function.
see ppc-mcount.S for more details. */
#ifdef PROF
@@ -29,48 +30,70 @@
to locate our caller and so it can restore it; so store one just
for its benefit. */
#ifdef SYSV_ELF_PROFILING
-#define CALL_MCOUNT \
- .pushsection; \
- .section ".data"; \
- .align ALIGNARG(2); \
-__mcount: \
- .long 0; \
- .previous; \
- .section ".toc","aw"; \
-.LC__mcount:; \
- .tc __mcount[TC],__mcount; \
- .previous; \
- mflr r0; \
- std r0,16(r1); \
- ld r0,.LC__mcount@toc(r2); \
+#define CALL_MCOUNT \
+ .pushsection; \
+ .section ".data"; \
+ .align ALIGNARG(2); \
+__mcount: \
+ .long 0; \
+ .previous; \
+ .section ".toc","aw"; \
+.LC__mcount:; \
+ .tc __mcount[TC],__mcount; \
+ .previous; \
+ mflr r0; \
+ std r0,16(r1); \
+ ld r0,.LC__mcount@toc(r2); \
bl JUMPTARGET(_mcount);
#else /* SYSV_ELF_PROFILING */
-#define CALL_MCOUNT \
- mflr r0; \
- std r0,16(r1); \
+#define CALL_MCOUNT \
+ mflr r0; \
+ std r0,16(r1); \
bl JUMPTARGET(_mcount);
#endif /* SYSV_ELF_PROFILING */
#else /* PROF */
#define CALL_MCOUNT /* Do nothing. */
#endif /* PROF */
-#define DOT_LABEL(X) .##X
+#ifdef USE_PPC64_OVERLAPPING_OPD
+# define OPD_ENT(name) .quad BODY_LABEL (name), .TOC.@tocbase
+#else
+# define OPD_ENT(name) .quad BODY_LABEL (name), .TOC.@tocbase, 0
+#endif
-#define ENTRY(name) \
- .section ".text"; \
- .align ALIGNARG(2); \
- .globl DOT_LABEL(name); \
- .type DOT_LABEL(name),@function ; \
- .globl name; \
- .section ".opd","aw"; \
- .align 3; \
- .size name,24; \
-name##: ; \
- .quad DOT_LABEL(name) ; \
- .quad .TOC.@tocbase, 0; \
- .previous; \
-DOT_LABEL(name):
+#define ENTRY_1(name) \
+ .section ".text"; \
+ .type BODY_LABEL(name),@function; \
+ .globl name; \
+ .section ".opd","aw"; \
+ .align 3; \
+name##: OPD_ENT (name); \
+ .previous;
+
+#ifdef HAVE_ASM_GLOBAL_DOT_NAME
+# define DOT_LABEL(X) .##X
+# define BODY_LABEL(X) .##X
+# define ENTRY_2(name) \
+ .globl BODY_LABEL(name); \
+ ENTRY_1(name) \
+ .size name, 24;
+# define END_2(name) \
+ .size BODY_LABEL(name),.-BODY_LABEL(name);
+#else
+# define DOT_LABEL(X) X
+# define BODY_LABEL(X) .LY##X
+# define ENTRY_2(name) \
+ .type name,@function; \
+ ENTRY_1(name)
+# define END_2(name) \
+ .size name,.-BODY_LABEL(name); \
+ .size BODY_LABEL(name),.-BODY_LABEL(name);
+#endif
+#define ENTRY(name) \
+ ENTRY_2(name) \
+ .align ALIGNARG(2); \
+BODY_LABEL(name):
#define EALIGN_W_0 /* No words to insert. */
#define EALIGN_W_1 nop
@@ -82,44 +105,24 @@ DOT_LABEL(name):
#define EALIGN_W_7 EALIGN_W_6;nop
/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
- past a 2^align boundary. */
+ past a 2^alignt boundary. */
#ifdef PROF
#define EALIGN(name, alignt, words) \
- .section ".text"; \
- .globl DOT_LABEL(name); \
- .type DOT_LABEL(name),@function ; \
- .globl name; \
- .section ".opd","aw"; \
- .align 3; \
- .size name,24; \
-name##: ; \
- .quad DOT_LABEL(name) ; \
- .quad .TOC.@tocbase, 0; \
- .previous; \
- .align ALIGNARG(alignt); \
- EALIGN_W_##words; \
-DOT_LABEL(name): \
- CALL_MCOUNT \
- b 0f; \
- .align ALIGNARG(alignt); \
- EALIGN_W_##words; \
- 0:
+ ENTRY_2(name) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+BODY_LABEL(name): \
+ CALL_MCOUNT \
+ b 0f; \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+0:
#else /* PROF */
#define EALIGN(name, alignt, words) \
- .section ".text"; \
- .globl DOT_LABEL(name); \
- .type DOT_LABEL(name),@function ; \
- .globl name; \
- .section ".opd","aw"; \
- .align 3; \
- .size name,24; \
-name##: ; \
- .quad DOT_LABEL(name) ; \
- .quad .TOC.@tocbase, 0; \
- .previous; \
- .align ALIGNARG(alignt); \
- EALIGN_W_##words; \
-DOT_LABEL(name):
+ ENTRY_2(name) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+BODY_LABEL(name):
#endif
/* Local labels stripped out by the linker. */
@@ -135,35 +138,35 @@ DOT_LABEL(name):
/* Support Traceback tables */
#define TB_ASM 0x000c000000000000
-#define TB_GLOBALLINK 0x0000800000000000
+#define TB_GLOBALLINK 0x0000800000000000
#define TB_IS_EPROL 0x0000400000000000
-#define TB_HAS_TBOFF 0x0000200000000000
+#define TB_HAS_TBOFF 0x0000200000000000
#define TB_INT_PROC 0x0000100000000000
#define TB_HAS_CTL 0x0000080000000000
#define TB_TOCLESS 0x0000040000000000
-#define TB_FP_PRESENT 0x0000020000000000
-#define TB_LOG_ABORT 0x0000010000000000
-#define TB_INT_HANDL 0x0000008000000000
-#define TB_NAME_PRESENT 0x0000004000000000
-#define TB_USES_ALLOCA 0x0000002000000000
+#define TB_FP_PRESENT 0x0000020000000000
+#define TB_LOG_ABORT 0x0000010000000000
+#define TB_INT_HANDL 0x0000008000000000
+#define TB_NAME_PRESENT 0x0000004000000000
+#define TB_USES_ALLOCA 0x0000002000000000
#define TB_SAVES_CR 0x0000000200000000
#define TB_SAVES_LR 0x0000000100000000
-#define TB_STORES_BC 0x0000000080000000
+#define TB_STORES_BC 0x0000000080000000
#define TB_FIXUP 0x0000000040000000
#define TB_FP_SAVED(fprs) (((fprs) & 0x3f) << 24)
#define TB_GPR_SAVED(gprs) (((fprs) & 0x3f) << 16)
#define TB_FIXEDPARMS(parms) (((parms) & 0xff) << 8)
#define TB_FLOATPARMS(parms) (((parms) & 0x7f) << 1)
-#define TB_PARMSONSTK 0x0000000000000001
+#define TB_PARMSONSTK 0x0000000000000001
-#define PPC_HIGHER(v) (((v) >> 32) & 0xffff)
-#define TB_DEFAULT TB_ASM | TB_HAS_TBOFF | TB_NAME_PRESENT
+#define PPC_HIGHER(v) (((v) >> 32) & 0xffff)
+#define TB_DEFAULT TB_ASM | TB_HAS_TBOFF | TB_NAME_PRESENT
#define TRACEBACK(name) \
LT_LABEL(name): ; \
.long 0 ; \
.quad TB_DEFAULT ; \
- .long LT_LABEL(name)-DOT_LABEL(name) ; \
+ .long LT_LABEL(name)-BODY_LABEL(name) ; \
.short LT_LABELSUFFIX(name,_name_end)-LT_LABELSUFFIX(name,_name_start) ; \
LT_LABELSUFFIX(name,_name_start): ;\
.ascii stringify(name) ; \
@@ -174,7 +177,7 @@ LT_LABELSUFFIX(name,_name_end): ; \
LT_LABEL(name): ; \
.long 0 ; \
.quad TB_DEFAULT | mask ; \
- .long LT_LABEL(name)-DOT_LABEL(name) ; \
+ .long LT_LABEL(name)-BODY_LABEL(name) ; \
.short LT_LABELSUFFIX(name,_name_end)-LT_LABELSUFFIX(name,_name_start) ; \
LT_LABELSUFFIX(name,_name_start): ;\
.ascii stringify(name) ; \
@@ -184,14 +187,13 @@ LT_LABELSUFFIX(name,_name_end): ; \
/* END generates Traceback tables */
#undef END
#define END(name) \
- TRACEBACK(name) \
- ASM_SIZE_DIRECTIVE(DOT_LABEL(name))
+ TRACEBACK(name) \
+ END_2(name)
/* This form supports more informative traceback tables */
#define END_GEN_TB(name,mask) \
TRACEBACK_MASK(name,mask) \
- ASM_SIZE_DIRECTIVE(DOT_LABEL(name))
-
+ END_2(name)
#define DO_CALL(syscall) \
li 0,syscall; \
@@ -244,10 +246,31 @@ LT_LABELSUFFIX(name,_name_end): ; \
#define PSEUDO_END_ERRVAL(name) \
END (name)
-/* Label in text section. */
-/* ppc64 function descriptors which requires . notation */
-#define C_TEXT(name) .##name
+#else /* !__ASSEMBLER__ */
-#endif /* __ELF__ */
+#ifdef USE_PPC64_OVERLAPPING_OPD
+# define OPD_ENT(name) ".quad " BODY_PREFIX #name ", .TOC.@tocbase;"
+#else
+# define OPD_ENT(name) ".quad " BODY_PREFIX #name ", .TOC.@tocbase, 0;"
+#endif
+
+#ifdef HAVE_ASM_GLOBAL_DOT_NAME
+# define DOT_PREFIX "."
+# define BODY_PREFIX "."
+# define ENTRY_2(name) \
+ ".globl " BODY_PREFIX #name ";\n" \
+ ".size " #name ", 24;"
+# define END_2(name) \
+ ".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
+#else
+# define DOT_PREFIX ""
+# define BODY_PREFIX ".LY"
+# define ENTRY_2(name) ".type " #name ",@function;"
+# define END_2(name) \
+ ".size " #name ",.-" BODY_PREFIX #name ";\n" \
+ ".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
+#endif
#endif /* __ASSEMBLER__ */
+
+#endif /* __ELF__ */
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