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https://sourceware.org/git/glibc.git
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4c38c1a229
The "power10" and "power9" subdirectories are selected in a way that matches the -mcpu=power10 and -mcpu=power9 options of GCC.
219 lines
9.1 KiB
Makefile
219 lines
9.1 KiB
Makefile
# When building float128 we need to ensure -mfloat128 is
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# passed to all such object files.
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type-float128-CFLAGS := -mfloat128
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# Bootstrapping code for enabling IEEE 128. This can be removed and
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# any indirections simplified once IEEE 128 long double is enabled.
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type-ldouble-CFLAGS =
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no-gnu-attribute-CFLAGS =
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ifeq ($(ibm128-fcts),yes)
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ibm128-abi-CFLAGS := -mabi=ibmlongdouble
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type-ldouble-CFLAGS += $(ibm128-abi-CFLAGS)
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no-gnu-attribute-CFLAGS = -mno-gnu-attribute
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# This is a very gnarly workaround to static libgcc providing a .gnu.attribute
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# in ibm128 functions. This is not a bug in static libgcc as normal users
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# should only ever link ibm128 or ieee128 routines, never both. We are the
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# exception which allows the decision to be deferred to user libraries or
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# applications.
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#
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# We built an object file and extract the desired .gnu.attributes section
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# to be inserted into lib{c,m}.so.
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ifeq ($(build-shared),yes)
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# Build everything with IEEE 128-bit long double.
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sysdep-CFLAGS += -mabi=ieeelongdouble -Wno-psabi $(no-gnu-attribute-CFLAGS)
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before-compile += $(common-objpfx)no_ldbl_gnu_attribute.bin
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$(common-objpfx)no_ldbl_gnu_attribute.bin: $(..)sysdeps/powerpc/powerpc64/le/no_ldbl_gnu_attribute.c
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$(filter-out $(no-gnu-attribute-CFLAGS),$(compile.c)) -o $(basename $@).o
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$(OBJCOPY) --dump-section=.gnu.attributes=$@.tmp $(basename $@).o
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mv $@.tmp $@
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define after-link
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if [ ! -z "$(filter libm.so libc.so,$(notdir $1))" ]; then \
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echo "Replacing .gnu.attributes in $1"; \
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$(OBJCOPY) --update-section=.gnu.attributes=$(common-objpfx)no_ldbl_gnu_attribute.bin $1; \
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fi
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endef
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# Ensure a .gnu.attributes section is present by building an ibm128 file with
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# -mgnu-attribute in both libm and libc shared libraries. Prior to GCC 11 this
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# section was implicitly included via static libgcc ibm128 routines.
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ifeq ($(subdir),math)
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$(objpfx)m_ldexpl.os: CFLAGS += -mgnu-attribute
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$(objpfx)s_ldexpl.os: CFLAGS += -mgnu-attribute
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endif
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endif # ifeq ($(build-shared),yes)
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endif # ifeq ($(ibm128-fcts),yes)
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# All _Float128 files should be built assuming an ibm128 long double.
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# Likewise, this avoids some old GCC 7 compiler bugs whereby calls
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# to __mulkc3 are swapped with __multc3, or worse. This is noted in
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# GCC BZ 84914, and marked as will-not-fix.
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type-float128-CFLAGS += $(type-ldouble-CFLAGS)
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ifeq ($(subdir),math)
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# sqrtf128 requires emulation before POWER9.
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CPPFLAGS += -I../soft-fp
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# float128 requires adding a handful of extra flags.
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# Similarly, disable
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$(foreach suf,$(all-object-suffixes),%f128$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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$(foreach suf,$(all-object-suffixes),%f128_r$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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$(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += $(type-float128-CFLAGS)
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$(foreach suf,$(all-object-suffixes),$(objpfx)test-float64x%$(suf)): CFLAGS += $(type-float128-CFLAGS)
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# Pairs of types with _Float128 / _Float64x as the wider type but not
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# the narrower one.
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f128-pairs = float32-float64x float32-float128 float64-float64x \
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float64-float128 float32x-float64x float32x-float128
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$(foreach suf,$(all-object-suffixes),$(foreach pair,$(f128-pairs),$(objpfx)test-$(pair)%$(suf))): CFLAGS += $(type-float128-CFLAGS)
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CFLAGS-libm-test-support-float128.c += $(type-float128-CFLAGS)
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CFLAGS-libm-test-support-float64x.c += $(type-float128-CFLAGS)
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CFLAGS-test-math-iscanonical.cc += $(type-float128-CFLAGS)
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CFLAGS-test-math-iseqsig.cc += $(type-float128-CFLAGS)
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CFLAGS-test-math-issignaling.cc += $(type-float128-CFLAGS)
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CFLAGS-test-math-iszero.cc += $(type-float128-CFLAGS)
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CFLAGS-s_logbl-power7.c += $(type-ldouble-CFLAGS)
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CFLAGS-s_logbl-ppc64.c += $(type-ldouble-CFLAGS)
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$(foreach suf,$(all-object-suffixes),\
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$(objpfx)s_copysignl$(suf) \
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$(objpfx)s_fabsl$(suf)): \
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ASFLAGS += $(type-ldouble-CFLAGS)
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$(foreach suf,$(all-object-suffixes),\
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$(objpfx)libm-test-%ibm128$(suf) \
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$(objpfx)test-iibm128%$(suf) $(objpfx)test-ibm128%$(suf)): \
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CFLAGS += $(type-ldouble-CFLAGS)
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# Newer GCC (>7) doesn't like -mabi=* and -mlong-double-64
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$(foreach suf,$(all-object-suffixes),\
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$(objpfx)test-narrow-macros-ldbl-64$(suf) \
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$(objpfx)test-nldbl-redirect$(suf) \
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$(objpfx)test-redirection-ldbl-64$(suf) \
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): sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
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endif
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# Newer GCC (>7) doesn't like -mabi=* and -mlong-double-64
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ifeq ($(subdir),misc)
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$(foreach suf,$(all-object-suffixes),\
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$(objpfx)tst-nldbl-warn$(suf) \
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$(objpfx)tst-nldbl-error$(suf) \
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): sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
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endif
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# Newer GCC (>7) doesn't like -mabi=* and -mlong-double-64
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ifeq ($(subdir),argp)
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$(foreach suf,$(all-object-suffixes),\
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$(objpfx)tst-nldbl-argp$(suf) \
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): sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
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endif
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# Append flags to string <-> _Float128 routines.
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ifneq ($(filter $(subdir),wcsmbs stdlib),)
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$(foreach suf,$(all-object-suffixes),%f128$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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$(foreach suf,$(all-object-suffixes),%f128_l$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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$(foreach suf,$(all-object-suffixes),%f128_nan$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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$(foreach suf,$(all-object-suffixes),%float1282mpn$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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$(foreach suf,$(all-object-suffixes),%mpn2float128$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
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CFLAGS-bug-strtod.c += $(type-float128-CFLAGS)
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CFLAGS-bug-strtod2.c += $(type-float128-CFLAGS)
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CFLAGS-tst-strtod-round.c += $(type-float128-CFLAGS)
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CFLAGS-tst-wcstod-round.c += $(type-float128-CFLAGS)
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CFLAGS-tst-strtod-nan-locale.c += $(type-float128-CFLAGS)
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CFLAGS-tst-wcstod-nan-locale.c += $(type-float128-CFLAGS)
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CFLAGS-tst-strtod6.c += $(type-float128-CFLAGS)
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CFLAGS-tst-strfrom.c += $(type-float128-CFLAGS)
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CFLAGS-tst-strfrom-locale.c += $(type-float128-CFLAGS)
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CFLAGS-strfrom-skeleton.c += $(type-float128-CFLAGS)
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CFLAGS-tst-strtod-nan-sign.c += $(type-float128-CFLAGS)
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CFLAGS-tst-wcstod-nan-sign.c += $(type-float128-CFLAGS)
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# When building glibc with support for _Float128, the powers of ten tables in
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# fpioconst.c and in the string conversion functions must be extended. Some
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# Makefiles (e.g.: wcsmbs/Makefile) override CFLAGS defined by the Makefiles in
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# sysdeps. This is avoided with the use sysdep-CFLAGS instead of CFLAGS.
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sysdep-CFLAGS += $(sysdep-CFLAGS-$(<F))
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sysdep-CFLAGS-fpioconst.c += $(type-float128-CFLAGS)
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sysdep-CFLAGS-strtod_l.c += $(type-float128-CFLAGS)
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sysdep-CFLAGS-strtof_l.c += $(type-float128-CFLAGS)
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sysdep-CFLAGS-strtold_l.c += $(type-float128-CFLAGS)
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sysdep-CFLAGS-wcstod_l.c += $(type-float128-CFLAGS)
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sysdep-CFLAGS-wcstof_l.c += $(type-float128-CFLAGS)
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sysdep-CFLAGS-wcstold_l.c += $(type-float128-CFLAGS)
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# Build any ibm128 specific stdlib tests with ibm128 ABI.
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$(foreach suf,$(all-object-suffixes),%128ibm$(suf)): CFLAGS += $(type-ldouble-CFLAGS)
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endif
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# Append flags to printf routines.
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ifeq ($(subdir),stdio-common)
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CFLAGS-printf_fp.c = $(type-float128-CFLAGS)
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CFLAGS-printf_fphex.c = $(type-float128-CFLAGS)
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CFLAGS-printf_size.c = $(type-float128-CFLAGS)
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endif
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# Disable linker noise on files using ieee128 long double internally
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ifeq ($(subdir),time)
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CFLAGS-difftime.c += $(no-gnu-attribute-CFLAGS)
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endif
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$(foreach suf,$(all-object-suffixes),$(objpfx)nldbl-%$(suf)): \
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CFLAGS += $(type-ldouble-CFLAGS)
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ldbl-ibm128-files = $(objpfx)nldbl-%$(suf) \
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$(objpfx)libm-test-%ibm128$(suf) \
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$(objpfx)test-iibm128%$(suf) $(objpfx)test-ibm128%$(suf) \
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$(objpfx)test-tgmath3-%$(suf)
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# Remove -mabi=ieeelongdouble from ldbl-ibm128 files.
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$(foreach suf,$(all-object-suffixes), $(ldbl-ibm128-files)) \
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$(foreach r,$(ldbl-128ibm-routines) $(ldbl-tests), \
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$(objpfx)$(r)$(suf)): \
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sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
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# TODO: a bug in stdc++ will fail if -mabi=ieeelongdouble and -mfloat128
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# are both enabled. The latter is enabled by default in GCC 8+. This is
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# tracked via GCC BZ 94080.
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ifeq ($(subdir),support)
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CFLAGS-links-dso-program.cc += -mno-float128
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endif
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ifeq ($(subdir),nptl)
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CFLAGS-tst-thread_local1.cc += -mno-float128
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CFLAGS-tst-minstack-throw.cc += -mno-float128
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endif
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ifeq ($(subdir),elf)
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$(objpfx)tst-glibc-hwcaps: \
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$(objpfx)libmarkermod2-1.so $(objpfx)libmarkermod3-1.so
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$(objpfx)tst-glibc-hwcaps.out: \
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$(objpfx)libmarkermod2.so \
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$(objpfx)glibc-hwcaps/power9/libmarkermod2.so \
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$(objpfx)libmarkermod3.so \
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$(objpfx)glibc-hwcaps/power9/libmarkermod3.so \
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$(objpfx)glibc-hwcaps/power10/libmarkermod3.so \
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$(objpfx)glibc-hwcaps/power9/libmarkermod2.so: $(objpfx)libmarkermod2-2.so
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$(make-target-directory)
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cp $< $@
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$(objpfx)glibc-hwcaps/power9/libmarkermod3.so: $(objpfx)libmarkermod3-2.so
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$(make-target-directory)
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cp $< $@
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$(objpfx)glibc-hwcaps/power10/libmarkermod3.so: $(objpfx)libmarkermod3-3.so
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$(make-target-directory)
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cp $< $@
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ifeq (no,$(build-hardcoded-path-in-tests))
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# This is an ld.so.cache test, and RPATH/RUNPATH in the executable
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# interferes with its test objectives.
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tests-container += tst-glibc-hwcaps-cache
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endif
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endif # $(subdir) == elf
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