sysdeps/powerpc/powerpc64/le/Makefile

   1 # When building float128 we need to ensure -mfloat128 is
   2 # passed to all such object files.
   3 type-float128-CFLAGS := -mfloat128
   4
   5 # Bootstrapping code for enabling IEEE 128.  This can be removed and
   6 # any indirections simplified once IEEE 128 long double is enabled.
   7 type-ldouble-CFLAGS =
   8 no-gnu-attribute-CFLAGS =
   9 ifeq ($(ibm128-fcts),yes)
  10 ibm128-abi-CFLAGS := -mabi=ibmlongdouble
  11 type-ldouble-CFLAGS += $(ibm128-abi-CFLAGS)
  12 no-gnu-attribute-CFLAGS = -mno-gnu-attribute
  13
  14 # This is a very gnarly workaround to static libgcc providing a .gnu.attribute
  15 # in ibm128 functions.  This is not a bug in static libgcc as normal users
  16 # should only ever link ibm128 or ieee128 routines, never both.  We are the
  17 # exception which allows the decision to be deferred to user libraries or
  18 # applications.
  19 #
  20 # We built an object file and extract the desired .gnu.attributes section
  21 # to be inserted into lib{c,m}.so.
  22 ifeq ($(build-shared),yes)
  23
  24 # Build everything with IEEE 128-bit long double.
  25 sysdep-CFLAGS += -mabi=ieeelongdouble -Wno-psabi $(no-gnu-attribute-CFLAGS)
  26
  27 before-compile += $(common-objpfx)no_ldbl_gnu_attribute.bin
  28
  29 $(common-objpfx)no_ldbl_gnu_attribute.bin: $(..)sysdeps/powerpc/powerpc64/le/no_ldbl_gnu_attribute.c
  30         $(filter-out $(no-gnu-attribute-CFLAGS),$(compile.c)) -o $(basename $@).o
  31         $(OBJCOPY) --dump-section=.gnu.attributes=$@.tmp $(basename $@).o
  32         mv $@.tmp $@
  33
  34 define after-link
  35 if [ ! -z "$(filter libm.so libc.so,$(notdir $1))" ]; then \
  36   echo "Replacing .gnu.attributes in $1"; \
  37   $(OBJCOPY) --update-section=.gnu.attributes=$(common-objpfx)no_ldbl_gnu_attribute.bin $1; \
  38 fi
  39 endef
  40
  41 # Ensure a .gnu.attributes section is present by building an ibm128 file with
  42 # -mgnu-attribute in both libm and libc shared libraries.  Prior to GCC 11 this
  43 # section was implicitly included via static libgcc ibm128 routines.
  44 ifeq ($(subdir),math)
  45 $(objpfx)m_ldexpl.os: CFLAGS += -mgnu-attribute
  46 $(objpfx)s_ldexpl.os: CFLAGS += -mgnu-attribute
  47 endif
  48
  49 endif # ifeq ($(build-shared),yes)
  50 endif # ifeq ($(ibm128-fcts),yes)
  51
  52 # All _Float128 files should be built assuming an ibm128 long double.
  53 # Likewise, this avoids some old GCC 7 compiler bugs whereby calls
  54 # to __mulkc3 are swapped with __multc3, or worse.  This is noted in
  55 # GCC BZ 84914, and marked as will-not-fix.
  56 type-float128-CFLAGS += $(type-ldouble-CFLAGS)
  57
  58 type-float128-CFLAGS =
  59
  60 ifeq ($(subdir),math)
  61 # sqrtf128 requires emulation before POWER9.
  62 CPPFLAGS += -I../soft-fp
  63
  64 # float128 requires adding a handful of extra flags.
  65 # Similarly, disable
  66 $(foreach suf,$(all-object-suffixes),%f128$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
  67 $(foreach suf,$(all-object-suffixes),%f128_r$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
  68 $(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += $(type-float128-CFLAGS)
  69 $(foreach suf,$(all-object-suffixes),$(objpfx)test-float64x%$(suf)): CFLAGS += $(type-float128-CFLAGS)
  70 # Pairs of types with _Float128 / _Float64x as the wider type but not
  71 # the narrower one.
  72 f128-pairs = float32-float64x float32-float128 float64-float64x \
  73              float64-float128 float32x-float64x float32x-float128
  74 $(foreach suf,$(all-object-suffixes),$(foreach pair,$(f128-pairs),$(objpfx)test-$(pair)%$(suf))): CFLAGS += $(type-float128-CFLAGS)
  75 CFLAGS-libm-test-support-float128.c += $(type-float128-CFLAGS)
  76 CFLAGS-libm-test-support-float64x.c += $(type-float128-CFLAGS)
  77 CFLAGS-test-math-iscanonical.cc += $(type-float128-CFLAGS)
  78 CFLAGS-test-math-iseqsig.cc += $(type-float128-CFLAGS)
  79 CFLAGS-test-math-issignaling.cc += $(type-float128-CFLAGS)
  80 CFLAGS-test-math-iszero.cc += $(type-float128-CFLAGS)
  81
  82 CFLAGS-s_logbl-power7.c += $(type-ldouble-CFLAGS)
  83 CFLAGS-s_logbl-ppc64.c += $(type-ldouble-CFLAGS)
  84
  85 $(foreach suf,$(all-object-suffixes),\
  86           $(objpfx)s_copysignl$(suf) \
  87           $(objpfx)s_fabsl$(suf)): \
  88   ASFLAGS += $(type-ldouble-CFLAGS)
  89
  90 $(foreach suf,$(all-object-suffixes),\
  91          $(objpfx)libm-test-%ibm128$(suf) \
  92          $(objpfx)test-iibm128%$(suf) $(objpfx)test-ibm128%$(suf)): \
  93   CFLAGS += $(type-ldouble-CFLAGS)
  94
  95 # Newer GCC (>7) doesn't like -mabi=* and -mlong-double-64
  96 $(foreach suf,$(all-object-suffixes),\
  97          $(objpfx)test-narrow-macros-ldbl-64$(suf) \
  98          $(objpfx)test-nldbl-redirect$(suf) \
  99          $(objpfx)test-redirection-ldbl-64$(suf) \
 100          ): sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
 101
 102 endif
 103
 104 # Newer GCC (>7) doesn't like -mabi=* and -mlong-double-64
 105 ifeq ($(subdir),misc)
 106 $(foreach suf,$(all-object-suffixes),\
 107          $(objpfx)tst-nldbl-warn$(suf) \
 108          $(objpfx)tst-nldbl-error$(suf) \
 109          ): sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
 110 endif
 111
 112 # Newer GCC (>7) doesn't like -mabi=* and -mlong-double-64
 113 ifeq ($(subdir),argp)
 114 $(foreach suf,$(all-object-suffixes),\
 115          $(objpfx)tst-nldbl-argp$(suf) \
 116          ): sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
 117 endif
 118
 119
 120 # Append flags to string <-> _Float128 routines.
 121 ifneq ($(filter $(subdir),wcsmbs stdlib),)
 122 $(foreach suf,$(all-object-suffixes),%f128$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
 123 $(foreach suf,$(all-object-suffixes),%f128_l$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
 124 $(foreach suf,$(all-object-suffixes),%f128_nan$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
 125 $(foreach suf,$(all-object-suffixes),%float1282mpn$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
 126 $(foreach suf,$(all-object-suffixes),%mpn2float128$(suf)): CFLAGS += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
 127 CFLAGS-bug-strtod.c += $(type-float128-CFLAGS)
 128 CFLAGS-bug-strtod2.c += $(type-float128-CFLAGS)
 129 CFLAGS-tst-strtod-round.c += $(type-float128-CFLAGS)
 130 CFLAGS-tst-wcstod-round.c += $(type-float128-CFLAGS)
 131 CFLAGS-tst-strtod-nan-locale.c += $(type-float128-CFLAGS)
 132 CFLAGS-tst-wcstod-nan-locale.c += $(type-float128-CFLAGS)
 133 CFLAGS-tst-strtod6.c += $(type-float128-CFLAGS)
 134 CFLAGS-tst-strfrom.c += $(type-float128-CFLAGS)
 135 CFLAGS-tst-strfrom-locale.c += $(type-float128-CFLAGS)
 136 CFLAGS-strfrom-skeleton.c += $(type-float128-CFLAGS)
 137 CFLAGS-tst-strtod-nan-sign.c += $(type-float128-CFLAGS)
 138 CFLAGS-tst-wcstod-nan-sign.c += $(type-float128-CFLAGS)
 139
 140 # When building glibc with support for _Float128, the powers of ten tables in
 141 # fpioconst.c and in the string conversion functions must be extended.  Some
 142 # Makefiles (e.g.: wcsmbs/Makefile) override CFLAGS defined by the Makefiles in
 143 # sysdeps.  This is avoided with the use sysdep-CFLAGS instead of CFLAGS.
 144 sysdep-CFLAGS += $(sysdep-CFLAGS-$(<F))
 145 sysdep-CFLAGS-fpioconst.c += $(type-float128-CFLAGS)
 146 sysdep-CFLAGS-strtod_l.c += $(type-float128-CFLAGS)
 147 sysdep-CFLAGS-strtof_l.c += $(type-float128-CFLAGS)
 148 sysdep-CFLAGS-strtold_l.c += $(type-float128-CFLAGS)
 149 sysdep-CFLAGS-wcstod_l.c += $(type-float128-CFLAGS)
 150 sysdep-CFLAGS-wcstof_l.c += $(type-float128-CFLAGS)
 151 sysdep-CFLAGS-wcstold_l.c += $(type-float128-CFLAGS)
 152
 153 # Build any ibm128 specific stdlib tests with ibm128 ABI.
 154 $(foreach suf,$(all-object-suffixes),%128ibm$(suf)): CFLAGS += $(type-ldouble-CFLAGS)
 155 endif
 156
 157 # Append flags to printf routines.
 158 ifeq ($(subdir),stdio-common)
 159 CFLAGS-printf_fp.c = $(type-float128-CFLAGS)
 160 CFLAGS-printf_fphex.c = $(type-float128-CFLAGS)
 161 CFLAGS-printf_size.c = $(type-float128-CFLAGS)
 162 endif
 163
 164 # Disable linker noise on files using ieee128 long double internally
 165 ifeq ($(subdir),time)
 166 CFLAGS-difftime.c += $(no-gnu-attribute-CFLAGS)
 167 endif
 168
 169 $(foreach suf,$(all-object-suffixes),$(objpfx)nldbl-%$(suf)): \
 170   CFLAGS += $(type-ldouble-CFLAGS)
 171
 172 ldbl-ibm128-files = $(objpfx)nldbl-%$(suf) \
 173                     $(objpfx)libm-test-%ibm128$(suf) \
 174                     $(objpfx)test-iibm128%$(suf) $(objpfx)test-ibm128%$(suf) \
 175                     $(objpfx)test-tgmath3-%$(suf)
 176
 177 # Remove -mabi=ieeelongdouble from ldbl-ibm128 files.
 178 $(foreach suf,$(all-object-suffixes), $(ldbl-ibm128-files)) \
 179           $(foreach r,$(ldbl-128ibm-routines) $(ldbl-tests), \
 180                     $(objpfx)$(r)$(suf)): \
 181   sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS))
 182
 183 # TODO: a bug in stdc++ will fail if -mabi=ieeelongdouble and -mfloat128
 184 # are both enabled.  The latter is enabled by default in GCC 8+.  This is
 185 # tracked via GCC BZ 94080.
 186 ifeq ($(subdir),support)
 187 CFLAGS-links-dso-program.cc += -mno-float128
 188 endif
 189 ifeq ($(subdir),nptl)
 190 CFLAGS-tst-thread_local1.cc += -mno-float128
 191 CFLAGS-tst-minstack-throw.cc += -mno-float128
 192 endif
 193
 194 ifeq ($(subdir),elf)
 195 $(objpfx)tst-glibc-hwcaps: \
 196   $(objpfx)libmarkermod2-1.so $(objpfx)libmarkermod3-1.so
 197 $(objpfx)tst-glibc-hwcaps.out: \
 198   $(objpfx)libmarkermod2.so \
 199     $(objpfx)glibc-hwcaps/power9/libmarkermod2.so \
 200   $(objpfx)libmarkermod3.so \
 201     $(objpfx)glibc-hwcaps/power9/libmarkermod3.so \
 202     $(objpfx)glibc-hwcaps/power10/libmarkermod3.so \
 203
 204 $(objpfx)glibc-hwcaps/power9/libmarkermod2.so: $(objpfx)libmarkermod2-2.so
 205         $(make-target-directory)
 206         cp $< $@
 207 $(objpfx)glibc-hwcaps/power9/libmarkermod3.so: $(objpfx)libmarkermod3-2.so
 208         $(make-target-directory)
 209         cp $< $@
 210 $(objpfx)glibc-hwcaps/power10/libmarkermod3.so: $(objpfx)libmarkermod3-3.so
 211         $(make-target-directory)
 212         cp $< $@
 213
 214 ifeq (no,$(build-hardcoded-path-in-tests))
 215 # This is an ld.so.cache test, and RPATH/RUNPATH in the executable
 216 # interferes with its test objectives.
 217 tests-container += tst-glibc-hwcaps-cache
 218 endif
 219
 220 endif # $(subdir) == elf