diff options
| -rw-r--r-- | arch/powerpc/Makefile | 4 | ||||
| -rw-r--r-- | arch/powerpc/lib/Makefile | 4 | ||||
| -rw-r--r-- | arch/powerpc/lib/crtsavres.S | 129 | ||||
| -rw-r--r-- | scripts/mod/modpost.c | 5 |
4 files changed, 138 insertions, 4 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 42dcd3f4ad7b..77cfe7a29e25 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -92,10 +92,10 @@ endif else KBUILD_CFLAGS += $(call cc-option,-mtune=power4) endif -else -LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o endif +LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o + ifeq ($(CONFIG_TUNE_CELL),y) KBUILD_CFLAGS += $(call cc-option,-mtune=cell) endif diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 3040dac18a37..111da1c03a11 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -12,8 +12,8 @@ CFLAGS_REMOVE_code-patching.o = -pg CFLAGS_REMOVE_feature-fixups.o = -pg obj-y := string.o alloc.o \ - checksum_$(CONFIG_WORD_SIZE).o -obj-$(CONFIG_PPC32) += div64.o copy_32.o crtsavres.o + checksum_$(CONFIG_WORD_SIZE).o crtsavres.o +obj-$(CONFIG_PPC32) += div64.o copy_32.o obj-$(CONFIG_HAS_IOMEM) += devres.o obj-$(CONFIG_PPC64) += copypage_64.o copyuser_64.o \ diff --git a/arch/powerpc/lib/crtsavres.S b/arch/powerpc/lib/crtsavres.S index 70a9cd8a3008..1c893f05d224 100644 --- a/arch/powerpc/lib/crtsavres.S +++ b/arch/powerpc/lib/crtsavres.S @@ -6,6 +6,7 @@ * Written By Michael Meissner * * Based on gcc/config/rs6000/crtsavres.asm from gcc + * 64 bit additions from reading the PPC elf64abi document. * * This file is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -44,6 +45,8 @@ #ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE +#ifndef CONFIG_PPC64 + /* Routines for saving integer registers, called by the compiler. */ /* Called with r11 pointing to the stack header word of the caller of the */ /* function, just beyond the end of the integer save area. */ @@ -226,4 +229,130 @@ _GLOBAL(_rest32gpr_31_x) mtlr 0 mr 1,11 blr + +#else /* CONFIG_PPC64 */ + +.globl _savegpr0_14 +_savegpr0_14: + std r14,-144(r1) +.globl _savegpr0_15 +_savegpr0_15: + std r15,-136(r1) +.globl _savegpr0_16 +_savegpr0_16: + std r16,-128(r1) +.globl _savegpr0_17 +_savegpr0_17: + std r17,-120(r1) +.globl _savegpr0_18 +_savegpr0_18: + std r18,-112(r1) +.globl _savegpr0_19 +_savegpr0_19: + std r19,-104(r1) +.globl _savegpr0_20 +_savegpr0_20: + std r20,-96(r1) +.globl _savegpr0_21 +_savegpr0_21: + std r21,-88(r1) +.globl _savegpr0_22 +_savegpr0_22: + std r22,-80(r1) +.globl _savegpr0_23 +_savegpr0_23: + std r23,-72(r1) +.globl _savegpr0_24 +_savegpr0_24: + std r24,-64(r1) +.globl _savegpr0_25 +_savegpr0_25: + std r25,-56(r1) +.globl _savegpr0_26 +_savegpr0_26: + std r26,-48(r1) +.globl _savegpr0_27 +_savegpr0_27: + std r27,-40(r1) +.globl _savegpr0_28 +_savegpr0_28: + std r28,-32(r1) +.globl _savegpr0_29 +_savegpr0_29: + std r29,-24(r1) +.globl _savegpr0_30 +_savegpr0_30: + std r30,-16(r1) +.globl _savegpr0_31 +_savegpr0_31: + std r31,-8(r1) + std r0,16(r1) + blr + +.globl _restgpr0_14 +_restgpr0_14: + ld r14,-144(r1) +.globl _restgpr0_15 +_restgpr0_15: + ld r15,-136(r1) +.globl _restgpr0_16 +_restgpr0_16: + ld r16,-128(r1) +.globl _restgpr0_17 +_restgpr0_17: + ld r17,-120(r1) +.globl _restgpr0_18 +_restgpr0_18: + ld r18,-112(r1) +.globl _restgpr0_19 +_restgpr0_19: + ld r19,-104(r1) +.globl _restgpr0_20 +_restgpr0_20: + ld r20,-96(r1) +.globl _restgpr0_21 +_restgpr0_21: + ld r21,-88(r1) +.globl _restgpr0_22 +_restgpr0_22: + ld r22,-80(r1) +.globl _restgpr0_23 +_restgpr0_23: + ld r23,-72(r1) +.globl _restgpr0_24 +_restgpr0_24: + ld r24,-64(r1) +.globl _restgpr0_25 +_restgpr0_25: + ld r25,-56(r1) +.globl _restgpr0_26 +_restgpr0_26: + ld r26,-48(r1) +.globl _restgpr0_27 +_restgpr0_27: + ld r27,-40(r1) +.globl _restgpr0_28 +_restgpr0_28: + ld r28,-32(r1) +.globl _restgpr0_29 +_restgpr0_29: + ld r0,16(r1) + ld r29,-24(r1) + mtlr r0 + ld r30,-16(r1) + ld r31,-8(r1) + blr + +.globl _restgpr0_30 +_restgpr0_30: + ld r30,-16(r1) +.globl _restgpr0_31 +_restgpr0_31: + ld r0,16(r1) + ld r31,-8(r1) + mtlr r0 + blr + +#endif /* CONFIG_PPC64 */ + #endif diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index f8779006986d..f6127b9f5aca 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -503,6 +503,11 @@ static int ignore_undef_symbol(struct elf_info *info, const char *symname) strncmp(symname, "_rest32gpr_", sizeof("_rest32gpr_") - 1) == 0 || strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0) return 1; + if (info->hdr->e_machine == EM_PPC64) + /* Special register function linked on all modules during final link of .ko */ + if (strncmp(symname, "_restgpr0_", sizeof("_restgpr0_") - 1) == 0 || + strncmp(symname, "_savegpr0_", sizeof("_savegpr0_") - 1) == 0) + return 1; /* Do not ignore this symbol */ return 0; } |