diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/powerpc64/Makefile')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/powerpc64/Makefile | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/Makefile b/REORG.TODO/sysdeps/powerpc/powerpc64/Makefile new file mode 100644 index 0000000000..9d15db0328 --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/powerpc64/Makefile @@ -0,0 +1,49 @@ +# Powerpc64 specific build options. +# this is ./sysdeps/powerpc/powerpc64/Makefile + +# Each TOC entry takes 8 bytes and the TOC holds up to 2^16 bytes, +# or 8192 entries. +# If -fpic is not specified, the latest gcc-3.2.1 now generates +# different code for call stubs (without the TOC reload). +# Shared objects need the TOC reload so specify -fpic. +ifeq (yes,$(build-shared)) +pic-ccflag = -fpic +endif + +# These flags prevent FPU or Altivec registers from being used, +# for code called in contexts that is not allowed to touch those registers. +# Stupid GCC requires us to pass all these ridiculous switches. We need to +# pass the -mno-* switches as well to prevent the compiler from attempting +# to emit altivec or vsx instructions, especially when the registers aren't +# available. +no-special-regs := $(sort $(foreach n,40 41 50 51 60 61 62 63 \ + $(foreach m,2 3 4 5 6 7 8 9, \ + 3$m 4$m 5$m),\ + -ffixed-$n)) \ + $(sort $(foreach n,$(foreach m,0 1 2 3 4 5 6 7 8 9,\ + $m 1$m 2$m) 30 31,\ + -ffixed-v$n)) \ + -ffixed-vrsave -ffixed-vscr -mno-altivec -mno-vsx + +# Need to prevent gcc from using fprs in code used during dynamic linking. + +CFLAGS-dl-runtime.os = $(no-special-regs) +CFLAGS-dl-lookup.os = $(no-special-regs) +CFLAGS-dl-misc.os = $(no-special-regs) +CFLAGS-rtld-mempcpy.os = $(no-special-regs) +CFLAGS-rtld-memmove.os = $(no-special-regs) +CFLAGS-rtld-memchr.os = $(no-special-regs) +CFLAGS-rtld-strnlen.os = $(no-special-regs) + +ifeq ($(subdir),elf) +# help gcc inline asm code from dl-machine.h ++cflags += -finline-limit=2000 +endif + +ifeq ($(subdir),gmon) +# The assembly functions assume that fp arg regs are not trashed. +# Compiling with -msoft-float ensures that fp regs are not used +# for moving memory around. +CFLAGS-mcount.c += $(no-special-regs) +sysdep_routines += ppc-mcount +endif |