47 lines
1.2 KiB
Makefile
47 lines
1.2 KiB
Makefile
# We always want to use the new mnemonic syntax even if we are on a RS6000
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# machine.
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+cflags += -mnew-mnemonics -Wa,-mppc -mpowerpc
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asm-CPPFLAGS += -Wa,-mppc
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ifeq ($(subdir),math)
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libm-support += fenv_const fe_nomask
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endif
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ifeq ($(subdir),gmon)
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sysdep_routines += ppc-mcount
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endif
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ifeq ($(subdir),misc)
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sysdep_routines += gprsave0 gprrest0 gprsave1 gprrest1 fprsave fprrest
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endif
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# On PPC, -fpic works until the GOT contains 2^15 bytes, and possibly
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# more depending on how clever the linker is. Each GOT entry takes 4 bytes,
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# so that's at least 8192 entries. Since libc only uses about 2000 entries,
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# we want to use -fpic, because this generates fewer relocs.
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ifeq (yes,$(build-shared))
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pic-ccflag = -fpic
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endif
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ifeq ($(subdir),csu)
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ifneq ($(elf),no)
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# The initfini generation code doesn't work in the presence of -fPIC, so
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# we use -fpic instead which is much better.
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CFLAGS-initfini.s = -g0 -fpic
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# There is no benefit to using sdata for these objects, and the user
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# of the library should be able to control what goes into sdata.
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CFLAGS-init.o = -G0
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CFLAGS-gmon-start.o = -G0
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endif
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endif
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ifeq ($(subdir),string)
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CFLAGS-memcmp.c += -Wno-uninitialized
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endif
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ifeq ($(subdir),elf)
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dl-routines += dl-machine
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rtld-routines += dl-machine dl-start
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endif
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