sysdeps/powerpc/Makefile

   1 # We always want to use the new mnemonic syntax even if we are on a RS6000
   2 # machine.
   3 +cflags += -mnew-mnemonics -Wa,-mppc -mpowerpc
   4 asm-CPPFLAGS += -Wa,-mppc
   5
   6 ifeq ($(subdir),math)
   7 libm-support += fenv_const fe_nomask
   8 endif
   9
  10 ifeq ($(subdir),gmon)
  11 sysdep_routines += ppc-mcount
  12 endif
  13
  14 ifeq ($(subdir),misc)
  15 sysdep_routines += gprsave0 gprrest0 gprsave1 gprrest1 fprsave fprrest
  16 endif
  17
  18 # On PPC, -fpic works until the GOT contains 2^15 bytes, and possibly
  19 # more depending on how clever the linker is.  Each GOT entry takes 4 bytes,
  20 # so that's at least 8192 entries.  Since libc only uses about 2000 entries,
  21 # we want to use -fpic, because this generates fewer relocs.
  22 ifeq (yes,$(build-shared))
  23 pic-ccflag = -fpic
  24 endif
  25
  26 ifeq ($(subdir),csu)
  27 ifneq ($(elf),no)
  28 # The initfini generation code doesn't work in the presence of -fPIC, so
  29 # we use -fpic instead which is much better.
  30 CFLAGS-initfini.s = -g0 -fpic -O1
  31
  32 # There is no benefit to using sdata for these objects, and the user
  33 # of the library should be able to control what goes into sdata.
  34 CFLAGS-init.o = -G0
  35 CFLAGS-gmon-start.o = -G0
  36 endif
  37 endif
  38
  39 ifeq ($(subdir),string)
  40 CFLAGS-memcmp.c += -Wno-uninitialized
  41 endif
  42
  43 ifeq ($(subdir),elf)
  44 # extra shared linker files to link into dl-allobjs.so and libc
  45 sysdep-dl-routines += dl-machine
  46 sysdep_routines += dl-machine
  47 # extra shared linker files to link only into dl-allobjs.so
  48 sysdep-rtld-routines += dl-machine dl-start
  49 endif