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Diffstat (limited to 'sysdeps/powerpc/powerpc64/sysdep.h')
-rw-r--r--sysdeps/powerpc/powerpc64/sysdep.h161
1 files changed, 140 insertions, 21 deletions
diff --git a/sysdeps/powerpc/powerpc64/sysdep.h b/sysdeps/powerpc/powerpc64/sysdep.h
index 57fa8ba78f..112e4187c5 100644
--- a/sysdeps/powerpc/powerpc64/sysdep.h
+++ b/sysdeps/powerpc/powerpc64/sysdep.h
@@ -20,25 +20,67 @@
#ifdef __ASSEMBLER__
+/* Stack frame offsets. */
+#if _CALL_ELF != 2
+#define FRAME_MIN_SIZE 112
+#define FRAME_MIN_SIZE_PARM 112
+#define FRAME_BACKCHAIN 0
+#define FRAME_CR_SAVE 8
+#define FRAME_LR_SAVE 16
+#define FRAME_TOC_SAVE 40
+#define FRAME_PARM_SAVE 48
+#define FRAME_PARM1_SAVE 48
+#define FRAME_PARM2_SAVE 56
+#define FRAME_PARM3_SAVE 64
+#define FRAME_PARM4_SAVE 72
+#define FRAME_PARM5_SAVE 80
+#define FRAME_PARM6_SAVE 88
+#define FRAME_PARM7_SAVE 96
+#define FRAME_PARM8_SAVE 104
+#define FRAME_PARM9_SAVE 112
+#else
+#define FRAME_MIN_SIZE 32
+#define FRAME_MIN_SIZE_PARM 96
+#define FRAME_BACKCHAIN 0
+#define FRAME_CR_SAVE 8
+#define FRAME_LR_SAVE 16
+#define FRAME_TOC_SAVE 24
+#define FRAME_PARM_SAVE 32
+#define FRAME_PARM1_SAVE 32
+#define FRAME_PARM2_SAVE 40
+#define FRAME_PARM3_SAVE 48
+#define FRAME_PARM4_SAVE 56
+#define FRAME_PARM5_SAVE 64
+#define FRAME_PARM6_SAVE 72
+#define FRAME_PARM7_SAVE 80
+#define FRAME_PARM8_SAVE 88
+#define FRAME_PARM9_SAVE 96
+#endif
+
/* Support macros for CALL_MCOUNT. */
+#if _CALL_ELF == 2
+#define call_mcount_parm_offset (-64)
+#else
+#define call_mcount_parm_offset FRAME_PARM_SAVE
+#endif
.macro SAVE_ARG NARG
.if \NARG
SAVE_ARG \NARG-1
- std 2+\NARG,40+8*(\NARG)(1)
+ std 2+\NARG,call_mcount_parm_offset-8+8*(\NARG)(1)
.endif
.endm
.macro REST_ARG NARG
.if \NARG
REST_ARG \NARG-1
- ld 2+\NARG,112+40+8*(\NARG)(1)
+ ld 2+\NARG,FRAME_MIN_SIZE_PARM+call_mcount_parm_offset-8+8*(\NARG)(1)
.endif
.endm
.macro CFI_SAVE_ARG NARG
.if \NARG
CFI_SAVE_ARG \NARG-1
- cfi_offset(2+\NARG,40+8*(\NARG))
+ cfi_offset(2+\NARG,call_mcount_parm_offset-8+8*(\NARG))
.endif
.endm
@@ -55,25 +97,35 @@
#ifdef PROF
mflr r0
SAVE_ARG \NARG
- std r0,16(r1)
- stdu r1,-112(r1)
- cfi_adjust_cfa_offset(112)
- cfi_offset(lr,16)
+ std r0,FRAME_LR_SAVE(r1)
+ stdu r1,-FRAME_MIN_SIZE_PARM(r1)
+ cfi_adjust_cfa_offset(FRAME_MIN_SIZE_PARM)
+ cfi_offset(lr,FRAME_LR_SAVE)
CFI_SAVE_ARG \NARG
bl JUMPTARGET (_mcount)
#ifndef SHARED
nop
#endif
- ld r0,128(r1)
+ ld r0,FRAME_MIN_SIZE_PARM+FRAME_LR_SAVE(r1)
REST_ARG \NARG
mtlr r0
- addi r1,r1,112
- cfi_adjust_cfa_offset(-112)
+ addi r1,r1,FRAME_MIN_SIZE_PARM
+ cfi_adjust_cfa_offset(-FRAME_MIN_SIZE_PARM)
cfi_restore(lr)
CFI_REST_ARG \NARG
#endif
.endm
+#if _CALL_ELF != 2
+
+/* Macro to prepare for calling via a function pointer. */
+ .macro PPC64_LOAD_FUNCPTR PTR
+ ld r12,0(\PTR)
+ ld r2,8(\PTR)
+ mtctr r12
+ ld r11,16(\PTR)
+ .endm
+
#ifdef USE_PPC64_OVERLAPPING_OPD
# define OPD_ENT(name) .quad BODY_LABEL (name), .TOC.@tocbase
#else
@@ -81,7 +133,6 @@
#endif
#define ENTRY_1(name) \
- .section ".text"; \
.type BODY_LABEL(name),@function; \
.globl name; \
.section ".opd","aw"; \
@@ -108,12 +159,37 @@ name##: OPD_ENT (name); \
.size name,.-BODY_LABEL(name); \
.size BODY_LABEL(name),.-BODY_LABEL(name);
#endif
+#define LOCALENTRY(name)
+
+#else /* _CALL_ELF */
+
+/* Macro to prepare for calling via a function pointer. */
+ .macro PPC64_LOAD_FUNCPTR PTR
+ mr r12,\PTR
+ mtctr r12
+ .endm
+
+#define DOT_LABEL(X) X
+#define BODY_LABEL(X) X
+#define ENTRY_2(name) \
+ .globl name; \
+ .type name,@function;
+#define END_2(name) \
+ .size name,.-name;
+#define LOCALENTRY(name) \
+1: addis r2,r12,.TOC.-1b@ha; \
+ addi r2,r2,.TOC.-1b@l; \
+ .localentry name,.-name;
+
+#endif /* _CALL_ELF */
#define ENTRY(name) \
+ .section ".text"; \
ENTRY_2(name) \
.align ALIGNARG(2); \
BODY_LABEL(name): \
- cfi_startproc;
+ cfi_startproc; \
+ LOCALENTRY(name)
#define EALIGN_W_0 /* No words to insert. */
#define EALIGN_W_1 nop
@@ -127,11 +203,13 @@ BODY_LABEL(name): \
/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
past a 2^alignt boundary. */
#define EALIGN(name, alignt, words) \
+ .section ".text"; \
ENTRY_2(name) \
.align ALIGNARG(alignt); \
EALIGN_W_##words; \
BODY_LABEL(name): \
- cfi_startproc;
+ cfi_startproc; \
+ LOCALENTRY(name)
/* Local labels stripped out by the linker. */
#undef L
@@ -231,15 +309,15 @@ LT_LABELSUFFIX(name,_name_end): ; \
.else; \
.Local_syscall_error: \
mflr 0; \
- std 0,16(1); \
- stdu 1,-112(1); \
- cfi_adjust_cfa_offset(112); \
- cfi_offset(lr,16); \
+ std 0,FRAME_LR_SAVE(1); \
+ stdu 1,-FRAME_MIN_SIZE(1); \
+ cfi_adjust_cfa_offset(FRAME_MIN_SIZE); \
+ cfi_offset(lr,FRAME_LR_SAVE); \
bl JUMPTARGET(__syscall_error); \
nop; \
- ld 0,112+16(1); \
- addi 1,1,112; \
- cfi_adjust_cfa_offset(-112); \
+ ld 0,FRAME_MIN_SIZE+FRAME_LR_SAVE(1); \
+ addi 1,1,FRAME_MIN_SIZE; \
+ cfi_adjust_cfa_offset(-FRAME_MIN_SIZE); \
mtlr 0; \
cfi_restore(lr); \
blr; \
@@ -286,27 +364,68 @@ LT_LABELSUFFIX(name,_name_end): ; \
#else /* !__ASSEMBLER__ */
+#if _CALL_ELF != 2
+
+#define PPC64_LOAD_FUNCPTR(ptr) \
+ "ld 12,0(" #ptr ");\n" \
+ "ld 2,8(" #ptr ");\n" \
+ "mtctr 12;\n" \
+ "ld 11,16(" #ptr ");"
+
#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
+#define ENTRY_1(name) \
+ ".type " BODY_PREFIX #name ",@function;\n" \
+ ".globl " #name ";\n" \
+ ".pushsection \".opd\",\"aw\";\n" \
+ ".align 3;\n" \
+#name ":\n" \
+ OPD_ENT (name) "\n" \
+ ".popsection;"
+
#ifdef HAVE_ASM_GLOBAL_DOT_NAME
# define DOT_PREFIX "."
# define BODY_PREFIX "."
# define ENTRY_2(name) \
".globl " BODY_PREFIX #name ";\n" \
+ ENTRY_1(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 ENTRY_2(name) \
+ ".type " #name ",@function;\n" \
+ ENTRY_1(name)
# define END_2(name) \
".size " #name ",.-" BODY_PREFIX #name ";\n" \
".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
#endif
+#define LOCALENTRY(name)
+
+#else /* _CALL_ELF */
+
+#define PPC64_LOAD_FUNCPTR(ptr) \
+ "mr 12," #ptr ";\n" \
+ "mtctr 12;"
+
+#define DOT_PREFIX ""
+#define BODY_PREFIX ""
+#define ENTRY_2(name) \
+ ".type " #name ",@function;\n" \
+ ".globl " #name ";"
+#define END_2(name) \
+ ".size " #name ",.-" #name ";"
+#define LOCALENTRY(name) \
+ "1: addis 2,12,.TOC.-1b@ha;\n" \
+ "addi 2,2,.TOC.-1b@l;\n" \
+ ".localentry " #name ",.-" #name ";"
+
+#endif /* _CALL_ELF */
#endif /* __ASSEMBLER__ */
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