sysdeps/i386/Makefile

   1 # The mpn functions need a #define for asm syntax flavor.
   2 # Every i386 port in use uses gas syntax (I think).
   3 asm-CPPFLAGS += -DGAS_SYNTAX
   4
   5 # The i386 `long double' is a distinct type we support.
   6 long-double-fcts = yes
   7
   8 ifeq ($(subdir),math)
   9 # These functions change the rounding mode internally and need to
  10 # update both the SSE2 rounding mode and the 387 rounding mode.  See
  11 # the handling of MATH_SET_BOTH_ROUNDING_MODES in
  12 # sysdeps/i386/fpu/fenv_private.h.
  13 CFLAGS-e_gamma_r.c += -DMATH_SET_BOTH_ROUNDING_MODES
  14 endif
  15
  16 ifeq ($(subdir),gmon)
  17 sysdep_routines += i386-mcount
  18 endif
  19
  20 ifeq ($(subdir),elf)
  21 CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused
  22 CFLAGS-dl-load.c += -Wno-unused
  23 CFLAGS-dl-reloc.c += -Wno-unused
  24 endif
  25
  26 ifeq ($(subdir),csu)
  27 gen-as-const-headers += link-defines.sym
  28 else
  29 stack-align-test-flags += -malign-double
  30 endif
  31
  32 ifeq ($(subdir),elf)
  33 sysdep-dl-routines += tlsdesc dl-tlsdesc
  34
  35 tests += tst-audit3
  36 modules-names += tst-auditmod3a tst-auditmod3b
  37
  38 $(objpfx)tst-audit3: $(objpfx)tst-auditmod3a.so
  39 $(objpfx)tst-audit3.out: $(objpfx)tst-auditmod3b.so
  40 tst-audit3-ENV = LD_AUDIT=$(objpfx)tst-auditmod3b.so
  41 endif
  42
  43 ifeq ($(subdir),csu)
  44 gen-as-const-headers += tlsdesc.sym
  45 endif
  46
  47 # Make sure no code in ld.so uses mm/xmm/ymm/zmm registers on i386 since
  48 # the first 3 mm/xmm/ymm/zmm registers are used to pass vector parameters
  49 # which must be preserved.
  50 # With SSE disabled, ensure -fpmath is not set to use sse either.
  51 rtld-CFLAGS += -mno-sse -mno-mmx -mfpmath=387
  52 ifeq ($(subdir),elf)
  53 CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
  54                    $(rtld-CFLAGS))
  55
  56 tests-special += $(objpfx)tst-ld-sse-use.out
  57 $(objpfx)tst-ld-sse-use.out: ../sysdeps/i386/tst-ld-sse-use.sh $(objpfx)ld.so
  58         @echo "Checking ld.so for SSE register use.  This will take a few seconds..."
  59         $(BASH) $< $(objpfx) '$(NM)' '$(OBJDUMP)' '$(READELF)' > $@; \
  60         $(evaluate-test)
  61 else
  62 CFLAGS-.os += $(if $(filter rtld-%.os,$(@F)), $(rtld-CFLAGS))
  63 endif