# 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

ifeq ($(subdir),setjmp)

tests += tst-setjmp-bug21895-static

tests-static += tst-setjmp-bug21895-static

modules-names += setjmp-bug21895

$(objpfx)tst-setjmp-bug21895-static: $(common-objpfx)dlfcn/libdl.a

$(objpfx)tst-setjmp-bug21895-static.out: $(objpfx)setjmp-bug21895.so

tst-setjmp-bug21895-static-ENV = \

	LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)setjmp:$(common-objpfx)elf

endif