diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/sysdep.h')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/sysdep.h | 68 |
1 files changed, 27 insertions, 41 deletions
diff --git a/sysdeps/powerpc/powerpc64/sysdep.h b/sysdeps/powerpc/powerpc64/sysdep.h index 4420a6dfac..fead0b578a 100644 --- a/sysdeps/powerpc/powerpc64/sysdep.h +++ b/sysdeps/powerpc/powerpc64/sysdep.h @@ -23,37 +23,36 @@ #ifdef __ASSEMBLER__ +/* Support macros for CALL_MCOUNT. */ + .macro SAVE_ARG NARG + .if \NARG + SAVE_ARG \NARG-1 + std 2+\NARG,-72+8*(\NARG)(1) + .endif + .endm + + .macro REST_ARG NARG + .if \NARG + REST_ARG \NARG-1 + ld 2+\NARG,40+8*(\NARG)(1) + .endif + .endm + /* If compiled for profiling, call `_mcount' at the start of each function. see ppc-mcount.S for more details. */ + .macro CALL_MCOUNT NARG #ifdef PROF -/* 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 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); \ - bl JUMPTARGET(_mcount); -#else /* SYSV_ELF_PROFILING */ -#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 */ + mflr r0 + SAVE_ARG \NARG + std r0,16(r1) + stdu r1,-112(r1) + bl JUMPTARGET (_mcount) + ld r0,128(r1) + REST_ARG \NARG + addi r1,r1,112 + mtlr r0 +#endif + .endm #ifdef USE_PPC64_OVERLAPPING_OPD # define OPD_ENT(name) .quad BODY_LABEL (name), .TOC.@tocbase @@ -106,24 +105,11 @@ BODY_LABEL(name): /* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes past a 2^alignt boundary. */ -#ifdef PROF -#define EALIGN(name, alignt, words) \ - 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) \ ENTRY_2(name) \ .align ALIGNARG(alignt); \ EALIGN_W_##words; \ BODY_LABEL(name): -#endif /* Local labels stripped out by the linker. */ #undef L |