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f496b28e61
Previously, only the SSE2 rounding mode was set, so the assembler implementations using 387 were not following the expecting rounding mode.
72 lines
2.1 KiB
Makefile
72 lines
2.1 KiB
Makefile
# The mpn functions need a #define for asm syntax flavor.
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# Every i386 port in use uses gas syntax (I think).
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asm-CPPFLAGS += -DGAS_SYNTAX
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# The i386 `long double' is a distinct type we support.
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long-double-fcts = yes
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ifeq ($(subdir),math)
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# These functions change the rounding mode internally and need to
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# update both the SSE2 rounding mode and the 387 rounding mode. See
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# the handling of MATH_SET_BOTH_ROUNDING_MODES in
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# sysdeps/i386/fpu/fenv_private.h.
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CFLAGS-e_gamma_r.c += -DMATH_SET_BOTH_ROUNDING_MODES
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endif
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ifeq ($(subdir),string)
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sysdep_routines += cacheinfo
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endif
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ifeq ($(subdir),gmon)
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sysdep_routines += i386-mcount
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endif
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ifeq ($(subdir),elf)
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CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused
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CFLAGS-dl-load.c += -Wno-unused
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CFLAGS-dl-reloc.c += -Wno-unused
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endif
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ifeq ($(subdir),csu)
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gen-as-const-headers += link-defines.sym
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else
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stack-align-test-flags += -malign-double
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endif
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ifneq (,$(filter -mno-tls-direct-seg-refs,$(CFLAGS)))
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defines += -DNO_TLS_DIRECT_SEG_REFS
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endif
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ifeq ($(subdir),elf)
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sysdep-dl-routines += tlsdesc dl-tlsdesc
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tests += tst-audit3
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modules-names += tst-auditmod3a tst-auditmod3b
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$(objpfx)tst-audit3: $(objpfx)tst-auditmod3a.so
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$(objpfx)tst-audit3.out: $(objpfx)tst-auditmod3b.so
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tst-audit3-ENV = LD_AUDIT=$(objpfx)tst-auditmod3b.so
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endif
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ifeq ($(subdir),csu)
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gen-as-const-headers += tlsdesc.sym
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endif
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# Make sure no code in ld.so uses mm/xmm/ymm/zmm registers on i386 since
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# the first 3 mm/xmm/ymm/zmm registers are used to pass vector parameters
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# which must be preserved.
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# With SSE disabled, ensure -fpmath is not set to use sse either.
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rtld-CFLAGS += -mno-sse -mno-mmx -mfpmath=387
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ifeq ($(subdir),elf)
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CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
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$(rtld-CFLAGS))
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tests-special += $(objpfx)tst-ld-sse-use.out
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$(objpfx)tst-ld-sse-use.out: ../sysdeps/i386/tst-ld-sse-use.sh $(objpfx)ld.so
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@echo "Checking ld.so for SSE register use. This will take a few seconds..."
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$(BASH) $< $(objpfx) '$(NM)' '$(OBJDUMP)' '$(READELF)' > $@; \
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$(evaluate-test)
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else
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CFLAGS-.os += $(if $(filter rtld-%.os,$(@F)), $(rtld-CFLAGS))
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endif
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