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 ($(with-fp),no)
   7 +cflags += -msoft-float
   8 sysdep-LDFLAGS += -msoft-float
   9 endif
  10
  11 ifeq ($(subdir),gmon)
  12 sysdep_routines += ppc-mcount
  13 endif
  14
  15 ifeq ($(subdir),misc)
  16 sysdep_routines += gprsave0 gprrest0 gprsave1 gprrest1
  17 endif
  18
  19 # On PPC, -fpic works until the GOT contains 2^15 bytes, and possibly
  20 # more depending on how clever the linker is.  Each GOT entry takes 4 bytes,
  21 # so that's at least 8192 entries.  Since libc only uses about 2000 entries,
  22 # we want to use -fpic, because this generates fewer relocs.
  23 ifeq (yes,$(build-shared))
  24 pic-ccflag = -fpic
  25 endif
  26
  27 ifeq ($(subdir),csu)
  28 ifneq ($(elf),no)
  29 # The initfini generation code doesn't work in the presence of -fPIC, so
  30 # we use -fpic instead which is much better.
  31 CFLAGS-initfini.s = -g0 -fpic -O1
  32
  33 # There is no benefit to using sdata for these objects, and the user
  34 # of the library should be able to control what goes into sdata.
  35 CFLAGS-init.o = -G0
  36 CFLAGS-gmon-start.o = -G0
  37 endif
  38 ifeq (yes,$(build-shared))
  39 # Compatibility
  40 ifeq (yes,$(have-protected))
  41 CPPFLAGS-divdi3.c = -DHAVE_DOT_HIDDEN
  42 CPPFLAGS-libgcc-compat.S = -DHAVE_DOT_HIDDEN
  43 endif
  44 sysdep_routines += divdi3 libgcc-compat
  45 shared-only-routines += divdi3 libgcc-compat
  46 endif
  47 endif
  48
  49 ifeq ($(subdir):$(elf),linuxthreads:yes)
  50 # See CFLAGS-initfini.s above; this is the same code.
  51 CFLAGS-pt-initfini.s = -g0 -fpic -O1
  52 endif
  53
  54 ifeq ($(subdir),string)
  55 CFLAGS-memcmp.c += -Wno-uninitialized
  56 endif
  57
  58 ifeq ($(subdir),elf)
  59 # extra shared linker files to link into dl-allobjs.so and libc
  60 sysdep-dl-routines += dl-machine
  61 sysdep_routines += dl-machine
  62 # extra shared linker files to link only into dl-allobjs.so
  63 sysdep-rtld-routines += dl-machine dl-start
  64 endif