mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 20:21:07 +00:00
f9378ac377
When installing glibc (w/mathvec enabled) in-place on a system with a glibc w/out mathvec enabled, the install will clobber the existing libm.so (e.g., /lib64/libm-2.21.so) with a linker script. This is because libm.so is a symlink to libm.so.6 which is a symlink to the final libm-2.21.so file. When the makefile writes the linker script directly to libm.so, it gets clobbered. The simple patch below to math/Makefile fixes this. It is based on the nptl Makefile, which does exactly the same thing in a safer way.
316 lines
13 KiB
Makefile
316 lines
13 KiB
Makefile
# Copyright (C) 1996-2016 Free Software Foundation, Inc.
|
|
# This file is part of the GNU C Library.
|
|
|
|
# The GNU C Library is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 2.1 of the License, or (at your option) any later version.
|
|
|
|
# The GNU C Library is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
# Lesser General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with the GNU C Library; if not, see
|
|
# <http://www.gnu.org/licenses/>.
|
|
|
|
# Makefile for the math library.
|
|
|
|
subdir := math
|
|
|
|
include ../Makeconfig
|
|
|
|
# Installed header files.
|
|
headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
|
|
bits/huge_valf.h bits/huge_vall.h bits/inf.h bits/nan.h \
|
|
fpu_control.h complex.h bits/cmathcalls.h fenv.h \
|
|
bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h \
|
|
bits/math-finite.h bits/math-vector.h \
|
|
bits/libm-simd-decl-stubs.h
|
|
|
|
# FPU support code.
|
|
aux := setfpucw fpu_control
|
|
|
|
# Build the -lm library.
|
|
|
|
extra-libs := libm
|
|
extra-libs-others = $(extra-libs)
|
|
|
|
libm-support = s_lib_version s_matherr s_signgam \
|
|
fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
|
|
ftestexcept fegetround fesetround fegetenv feholdexcpt \
|
|
fesetenv feupdateenv t_exp fedisblxcpt feenablxcpt \
|
|
fegetexcept
|
|
libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
|
|
e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
|
|
e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
|
|
e_ilogb \
|
|
k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
|
|
s_ceil s_cos s_erf s_expm1 s_fabs \
|
|
s_floor s_log1p w_log1p s_logb \
|
|
s_nextafter s_nexttoward s_rint s_scalbln w_scalbln \
|
|
s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
|
|
w_atan2 w_atanh w_cosh w_exp w_exp2 w_exp10 w_fmod \
|
|
w_tgamma w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
|
|
w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \
|
|
w_ilogb \
|
|
s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
|
|
s_remquo e_log2 e_exp2 s_round s_nearbyint s_sincos \
|
|
conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
|
|
s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
|
|
s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
|
|
s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \
|
|
s_issignaling $(calls:s_%=m_%) x2y2m1 k_casinh \
|
|
gamma_product k_standard lgamma_neg lgamma_product \
|
|
w_lgamma_compat
|
|
|
|
dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \
|
|
mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
|
|
slowpow sincostab
|
|
libm-routines = $(strip $(libm-support) $(libm-calls) \
|
|
$(patsubst %_rf,%f_r,$(libm-calls:=f)) \
|
|
$(long-m-$(long-double-fcts))) \
|
|
$(dbl-only-routines)
|
|
long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
|
|
long-m-support = t_sincosl k_sincosl
|
|
long-m-yes = $(long-m-routines) $(long-m-support)
|
|
|
|
# These functions are in libc instead of libm because __printf_fp
|
|
# calls them, so any program using printf will need them linked in,
|
|
# and we don't want to have to link every program with -lm.
|
|
# In libm-calls (above), list m_foo in place of s_foo for any
|
|
# routine that should be compiled separately for its libc and libm versions.
|
|
calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
|
|
s_signbit
|
|
generated += $(foreach s,.c .S l.c l.S f.c f.S,$(calls:s_%=m_%$s))
|
|
routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
|
|
long-c-yes = $(calls:=l)
|
|
|
|
ifeq ($(build-mathvec),yes)
|
|
# We need to install libm.so as linker script
|
|
# for more comfortable use of vector math library.
|
|
install-lib-ldscripts := libm.so
|
|
install_subdir: $(inst_libdir)/libm.so
|
|
$(inst_libdir)/libm.so: $(common-objpfx)format.lds \
|
|
$(libm) \
|
|
$(libmvec) \
|
|
$(+force)
|
|
(echo '/* GNU ld script'; echo '*/';\
|
|
cat $<; \
|
|
echo 'GROUP ( $(slibdir)/libm.so$(libm.so-version) ' \
|
|
'AS_NEEDED ( $(libdir)/libmvec_nonshared.a $(slibdir)/libmvec.so$(libmvec.so-version) ) )' \
|
|
) > $@.new
|
|
mv -f $@.new $@
|
|
endif
|
|
|
|
# Rules for the test suite.
|
|
tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
|
|
test-misc test-fpucw test-fpucw-ieee tst-definitions test-tgmath \
|
|
test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \
|
|
test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \
|
|
test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \
|
|
test-nearbyint-except test-fenv-clear test-signgam-finite \
|
|
test-signgam-finite-c99 test-signgam-finite-c11 \
|
|
test-nearbyint-except-2 test-signgam-uchar test-signgam-uchar-init \
|
|
test-signgam-uint test-signgam-uint-init test-signgam-ullong \
|
|
test-signgam-ullong-init test-nan-overflow test-nan-payload \
|
|
$(tests-static)
|
|
tests-static = test-fpucw-static test-fpucw-ieee-static \
|
|
test-signgam-uchar-static test-signgam-uchar-init-static \
|
|
test-signgam-uint-static test-signgam-uint-init-static \
|
|
test-signgam-ullong-static test-signgam-ullong-init-static
|
|
# We do the `long double' tests only if this data type is available and
|
|
# distinct from `double'.
|
|
test-longdouble-yes = test-ldouble test-ildoubl test-ldouble-finite
|
|
|
|
ifneq (,$(CXX))
|
|
tests += test-math-isinff
|
|
endif
|
|
|
|
ifneq (no,$(PERL))
|
|
libm-vec-tests = $(addprefix test-,$(libmvec-tests))
|
|
libm-tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \
|
|
test-ifloat test-idouble test-float-finite test-double-finite \
|
|
$(libm-vec-tests)
|
|
libm-tests.o = $(addsuffix .o,$(libm-tests))
|
|
|
|
tests += $(libm-tests)
|
|
libm-tests-generated = libm-test-ulps.h libm-have-vector-test.h libm-test.c
|
|
generated += $(libm-tests-generated) libm-test.stmp
|
|
|
|
# This is needed for dependencies
|
|
before-compile += $(objpfx)libm-test.c
|
|
|
|
ulps-file = $(firstword $(wildcard $(sysdirs:%=%/libm-test-ulps)))
|
|
|
|
$(addprefix $(objpfx), $(libm-tests-generated)): $(objpfx)libm-test.stmp
|
|
|
|
$(objpfx)libm-test.stmp: $(ulps-file) libm-test.inc gen-libm-test.pl \
|
|
gen-libm-have-vector-test.sh auto-libm-test-out
|
|
$(make-target-directory)
|
|
$(PERL) gen-libm-test.pl -u $< -o "$(objpfx)"
|
|
$(SHELL) gen-libm-have-vector-test.sh > $(objpfx)libm-have-vector-test.h
|
|
@echo > $@
|
|
|
|
$(objpfx)test-float.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-ifloat.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-float-finite.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-double.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-idouble.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-double-finite.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-ldouble.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-ildoubl.o: $(objpfx)libm-test.stmp
|
|
$(objpfx)test-ldouble-finite.o: $(objpfx)libm-test.stmp
|
|
endif
|
|
|
|
libm-test-fast-math-cflags = -fno-builtin -D__FAST_MATH__ -DTEST_FAST_MATH
|
|
libm-test-vec-cflags = $(libm-test-fast-math-cflags) -fno-inline \
|
|
-ffloat-store -D_OPENMP=201307 -Wno-unknown-pragmas
|
|
|
|
CFLAGS-test-double-vlen2.c = $(libm-test-vec-cflags)
|
|
|
|
CFLAGS-test-double-vlen4.c = $(libm-test-vec-cflags)
|
|
CFLAGS-test-double-vlen4-wrappers.c = $(double-vlen4-arch-ext-cflags)
|
|
|
|
CFLAGS-test-double-vlen8.c = $(libm-test-vec-cflags)
|
|
CFLAGS-test-double-vlen8-wrappers.c = $(double-vlen8-arch-ext-cflags)
|
|
|
|
CFLAGS-test-float-vlen4.c = $(libm-test-vec-cflags)
|
|
|
|
CFLAGS-test-float-vlen8.c = $(libm-test-vec-cflags)
|
|
CFLAGS-test-float-vlen8-wrappers.c = $(float-vlen8-arch-ext-cflags)
|
|
|
|
CFLAGS-test-float-vlen16.c = $(libm-test-vec-cflags)
|
|
CFLAGS-test-float-vlen16-wrappers.c = $(float-vlen16-arch-ext-cflags)
|
|
|
|
libm-test-no-inline-cflags = -fno-inline -ffloat-store -fno-builtin
|
|
libm-test-finite-cflags = $(libm-test-no-inline-cflags) \
|
|
-U__FINITE_MATH_ONLY__ -D__FINITE_MATH_ONLY__=1
|
|
CFLAGS-test-float.c = $(libm-test-no-inline-cflags)
|
|
CFLAGS-test-float-finite.c = $(libm-test-finite-cflags)
|
|
CFLAGS-test-double.c = $(libm-test-no-inline-cflags)
|
|
CFLAGS-test-double-finite.c = $(libm-test-finite-cflags)
|
|
CFLAGS-test-ldouble.c = $(libm-test-no-inline-cflags)
|
|
CFLAGS-test-ldouble-finite.c = $(libm-test-finite-cflags)
|
|
CFLAGS-test-tgmath.c = -fno-builtin
|
|
# The following testcase uses very long lines (>3 million), so it may take a
|
|
# while to compile it. See: http://llvm.org/bugs/show_bug.cgi?id=14106 and
|
|
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402
|
|
CFLAGS-test-tgmath2.c = -fno-builtin
|
|
CFLAGS-test-tgmath-ret.c = -fno-builtin
|
|
CFLAGS-test-powl.c = -fno-builtin
|
|
|
|
CFLAGS-test-snan.c = -fsignaling-nans
|
|
CPPFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES \
|
|
$(libm-test-fast-math-cflags)
|
|
CPPFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES \
|
|
$(libm-test-fast-math-cflags)
|
|
CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES \
|
|
$(libm-test-fast-math-cflags)
|
|
|
|
CFLAGS-test-signgam-finite.c = -ffinite-math-only
|
|
CFLAGS-test-signgam-finite-c99.c = -ffinite-math-only -std=c99
|
|
CFLAGS-test-signgam-finite-c11.c = -ffinite-math-only -std=c11
|
|
CFLAGS-test-signgam-uchar.c = -std=c99
|
|
CFLAGS-test-signgam-uchar-init.c = -std=c99
|
|
CFLAGS-test-signgam-uchar-static.c = -std=c99
|
|
CFLAGS-test-signgam-uchar-init-static.c = -std=c99
|
|
CFLAGS-test-signgam-uint.c = -std=c99
|
|
CFLAGS-test-signgam-uint-init.c = -std=c99
|
|
CFLAGS-test-signgam-uint-static.c = -std=c99
|
|
CFLAGS-test-signgam-uint-init-static.c = -std=c99
|
|
CFLAGS-test-signgam-ullong.c = -std=c99
|
|
CFLAGS-test-signgam-ullong-init.c = -std=c99
|
|
CFLAGS-test-signgam-ullong-static.c = -std=c99
|
|
CFLAGS-test-signgam-ullong-init-static.c = -std=c99
|
|
|
|
CFLAGS-test-math-isinff.cc = -std=gnu++11
|
|
|
|
# The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
|
|
# for error handling in the -lm functions.
|
|
install-lib += libieee.a
|
|
non-lib.a += libieee.a
|
|
extra-objs += libieee.a ieee-math.o
|
|
|
|
include ../Rules
|
|
|
|
ifneq (no,$(PERL))
|
|
# This must come after the inclusion of sysdeps Makefiles via Rules.
|
|
$(addprefix $(objpfx), $(addsuffix .o, $(libm-vec-tests))): $(objpfx)libm-test.stmp
|
|
|
|
# Run the math programs to automatically generate ULPs files.
|
|
.PHONY: regen-ulps
|
|
|
|
run-regen-ulps = $(test-wrapper-env) \
|
|
$(run-program-env) \
|
|
$($*-ENV) $(rtld-prefix) $${run}
|
|
|
|
regen-ulps: $(addprefix $(objpfx),$(libm-tests))
|
|
rm -f $(objpfx)ULPs; rm -f $(objpfx)NewUlps; \
|
|
cp $(ulps-file) $(objpfx)libm-test-ulps; \
|
|
for run in $^; do \
|
|
echo "Regenerating ULPs for $${run}"; \
|
|
$(run-regen-ulps) -u -o $(objpfx); \
|
|
cat $(objpfx)ULPs >> $(objpfx)libm-test-ulps; \
|
|
rm $(objpfx)ULPs; \
|
|
done; \
|
|
$(PERL) gen-libm-test.pl -o $(objpfx) -n -u $(objpfx)libm-test-ulps; \
|
|
echo "Automatic regeneration of ULPs complete."; \
|
|
echo "Difference between the current baseline and the new baseline is:";\
|
|
diff -urN $(ulps-file) $(objpfx)NewUlps; \
|
|
echo "Copy $(objpfx)NewUlps to $(ulps-file) (relative to source)."
|
|
else
|
|
regen-ulps:
|
|
@echo "Automatic regeneration of ULPs requires perl."; \
|
|
exit 1;
|
|
endif
|
|
|
|
# The generated sysd-rules file defines rules like this for sources
|
|
# coming from sysdeps/ directories. These rules find the generic sources.
|
|
define o-iterator-doit
|
|
$(objpfx)m_%$o: s_%.c $(before-compile); $$(compile-command.c)
|
|
endef
|
|
object-suffixes-left := $(all-object-suffixes)
|
|
include $(o-iterator)
|
|
|
|
|
|
# This file defines the default _LIB_VERSION variable that controls
|
|
# the error return conventions for the math functions.
|
|
CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
|
|
|
|
# We don't want the fdlibm code to use the inline math functions,
|
|
# only the fdlibm code.
|
|
math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
|
|
|
|
ifneq ($(long-double-fcts),yes)
|
|
# The `double' and `long double' types are the same on this machine.
|
|
# We won't compile the `long double' code at all. Tell the `double' code
|
|
# to define aliases for the `FUNCl' names. To avoid type conflicts in
|
|
# defining those aliases, tell <math.h> to declare the `FUNCl' names with
|
|
# `double' instead of `long double'.
|
|
math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
|
|
endif
|
|
|
|
# The -lieee library is actually an object file.
|
|
# The module just defines the _LIB_VERSION_ variable.
|
|
# It's not a library to make sure it is linked in instead of s_lib_version.o.
|
|
$(objpfx)libieee.a: $(objpfx)ieee-math.o
|
|
rm -f $@
|
|
$(patsubst %/,cd % &&,$(objpfx)) \
|
|
$(LN_S) $(<F) $(@F)
|
|
|
|
$(addprefix $(objpfx),$(filter-out $(tests-static) $(libm-vec-tests),$(tests))): $(libm)
|
|
$(addprefix $(objpfx),$(tests-static)): $(objpfx)libm.a
|
|
$(addprefix $(objpfx), $(libm-vec-tests)): $(objpfx)%: $(objpfx)%-wrappers.o $(libm) \
|
|
$(libmvec)
|
|
|
|
gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%.o,\
|
|
add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
|
|
lshift rshift mp_clz_tab udiv_qrnnd inlines \
|
|
$(gmp-sysdep_routines))
|
|
$(objpfx)atest-exp: $(gmp-objs)
|
|
$(objpfx)atest-sincos: $(gmp-objs)
|
|
$(objpfx)atest-exp2: $(gmp-objs)
|
|
$(objpfx)test-fenv-tls: $(shared-thread-library)
|