sysdeps/powerpc/powerpc32/Makefile

   1 # Powerpc32 specific build options.
   2
   3 # Some Powerpc32 variants assume soft-fp is the default even though there is
   4 # an fp variant so provide -mhard-float if --with-fp is explicitly passed.
   5
   6 ifeq ($(with-fp),yes)
   7 +cflags += -mhard-float
   8 ASFLAGS += -mhard-float
   9 sysdep-LDFLAGS += -mhard-float
  10 endif
  11
  12 ifeq ($(subdir),gmon)
  13 sysdep_routines += ppc-mcount compat-ppc-mcount
  14 static-only-routines += ppc-mcount
  15 shared-only-routines += compat-ppc-mcount
  16 endif
  17
  18 ifeq ($(subdir),misc)
  19 sysdep_routines += gprsave0 gprrest0 gprsave1 gprrest1
  20 endif
  21
  22 # On PPC, -fpic works until the GOT contains 32768 bytes, and possibly
  23 # more depending on how clever the linker is.  Each GOT entry takes 4 bytes,
  24 # so that's at least 8192 entries.  Since libc only uses about 2000 entries,
  25 # we want to use -fpic, because this generates fewer relocs.
  26 ifeq (yes,$(build-shared))
  27 pic-ccflag = -fpic
  28 endif
  29
  30 ifeq ($(subdir),csu)
  31 # There is no benefit to using sdata for these objects, and the user
  32 # of the library should be able to control what goes into sdata.
  33 CFLAGS-init.o = -G0
  34 CFLAGS-gmon-start.o = -G0
  35
  36 ifeq (yes,$(build-shared))
  37 # Compatibility
  38 ifeq (yes,$(have-protected))
  39 CPPFLAGS-libgcc-compat.S = -DHAVE_DOT_HIDDEN
  40 endif
  41 sysdep_routines += libgcc-compat
  42 shared-only-routines += libgcc-compat
  43 endif
  44 endif
  45
  46 ifeq ($(subdir),elf)
  47 # extra shared linker files to link only into dl-allobjs.so
  48 sysdep-rtld-routines += dl-start
  49 endif