sysdeps/tile/tilegx/Makefile

   1 include $(common-objpfx)cflags-mcmodel-large.mk
   2
   3 # Check for gcc to support the command-line switch, and for
   4 # binutils to support the hwN_plt() assembly operators and relocations.
   5 $(common-objpfx)cflags-mcmodel-large.mk: $(common-objpfx)config.make
   6         mcmodel=no; \
   7         (echo 'int main() { return getuid(); }' | \
   8          $(CC) -o /dev/null -xc - -mcmodel=large -fpic) && mcmodel=yes; \
   9         echo "cflags-mcmodel-large = $$mcmodel" > $@
  10
  11 ifeq (yes,$(cflags-mcmodel-large))
  12
  13 ifeq ($(subdir),csu)
  14 # elf-init.c is in libc_nonshared.o (the end of the shared object) but
  15 # must reach the _init symbol at the very start of the shared object.
  16 CFLAGS-elf-init.c += -mcmodel=large
  17
  18 # __gmon_start__ is at the very start of the shared object when linked
  19 # with profiling, but calls to libc.so via the PLT at the very end.
  20 CFLAGS-gmon-start.c += -mcmodel=large
  21 endif
  22
  23 else
  24
  25 # Don't try to compile assembly code with hwN_plt() directives if the
  26 # toolchain doesn't support -mcmodel=large.
  27 ifeq ($(subdir),csu)
  28 CPPFLAGS-start.S += -DNO_PLT_PCREL
  29 CPPFLAGS-crti.S += -DNO_PLT_PCREL
  30 endif
  31 ifeq ($(subdir),nptl)
  32 CPPFLAGS-pt-crti.S += -DNO_PLT_PCREL
  33 endif
  34
  35 endif