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powerpc64le: Use ifunc for _Float128 functions also in libc

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This fixes missing definition of math functions in libc in a static link
that are no longer built for libm after commit 4898d9712b ("Avoid adding
duplicated symbols into static libraries").
This commit is contained in:
Andreas Schwab 2021-03-31 14:17:24 +02:00
parent 01e0451175
commit 5ccea9a011
3 changed files with 17 additions and 8 deletions
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17
sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile
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@ -85,6 +85,7 @@ endif
#
ifeq ($(do_f128_multiarch),yes)
f128-ifunc-calls = s_modff128 s_scalbnf128 s_frexpf128 s_ldexpf128
gen-libm-f128-ifunc-routines = \
e_acosf128 e_acoshf128 e_asinf128 e_atan2f128 e_atanhf128 e_coshf128 \
e_expf128 e_fmodf128 e_hypotf128 e_j0f128 e_j1f128 e_jnf128 \
@ -96,7 +97,7 @@ gen-libm-f128-ifunc-routines = \
s_tanhf128 s_truncf128 s_remquof128 e_log2f128 \
s_roundf128 s_nearbyintf128 s_sincosf128 s_fmaf128 s_lrintf128 \
s_llrintf128 s_lroundf128 s_llroundf128 e_exp10f128 \
m_modff128 m_scalbnf128 m_frexpf128 m_ldexpf128 x2y2m1f128 \
$(f128-ifunc-calls) $(f128-ifunc-calls:s_%=m_%) x2y2m1f128 \
gamma_productf128 lgamma_negf128 lgamma_productf128 s_roundevenf128 \
cargf128 conjf128 cimagf128 crealf128 cabsf128 e_scalbf128 s_cacosf128 \
s_cacoshf128 s_ccosf128 s_ccoshf128 s_casinf128 s_csinf128 \
@ -118,19 +119,26 @@ f128-march-routines-ifunc = $(addsuffix -ifunc,$(gen-libm-f128-ifunc-routines))
f128-march-routines = $(f128-march-routines-p9) $(f128-march-routines-ifunc)
f128-march-cpus = power9
libm-routines += $(f128-march-routines)
f128-march-calls-p9 = $(addsuffix -power9,$(f128-ifunc-calls))
f128-march-calls-ifunc = $(addsuffix -ifunc,$(f128-ifunc-calls))
f128-march-calls = $(f128-march-calls-p9) $(f128-march-calls-ifunc)
calls += $(f128-march-calls)
libm-routines += $(filter-out $(f128-march-calls), $(f128-march-routines))
generated += $(f128-march-routines)
CFLAGS-float128-ifunc.c += $(type-float128-CFLAGS) $(no-gnu-attribute-CFLAGS)
# Copy special CFLAGS for some functions
CFLAGS-s_modff128-power9.c += -fsignaling-nans
CFLAGS-m_modff128-power9.c += -fsignaling-nans
# Generate ifunc wrapper files and target specific wrappers around
# each routine above. Note, m_%.c files are fixed up to include
# s_%.c files. This is an artifact of the makefile rules which allow
# some files to be compiled for libc and libm.
$(objpfx)gen-float128-ifuncs.stmp: Makefile
$(objpfx)gen-float128-ifuncs.stmp: \
Makefile $(..)sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile
$(make-target-directory)
for gcall in $(gen-libm-f128-ifunc-routines); do \
ifile="$${gcall}"; \
@ -178,7 +186,8 @@ $(objpfx)gen-float128-ifuncs.stmp: Makefile
done; \
echo > $(@)
$(foreach f,$(f128-march-routines),$(objpfx)$(f).c): $(objpfx)gen-float128-ifuncs.stmp
$(foreach f,$(f128-march-routines),$(objpfx)$(f).c): \
$(objpfx)gen-float128-ifuncs.stmp $(objpfx)gen-libm-templates.stmp
enable-f128-ifunc-CFLAGS = -D_F128_ENABLE_IFUNC $(no-gnu-attributes-CFLAGS) $(type-float128-CFLAGS)

4
sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128_private.h
View File

@ -19,7 +19,7 @@
#ifndef _FLOAT128_PRIVATE_PPC64LE
#define _FLOAT128_PRIVATE_PPC64LE 1
#if IS_IN(libc) || !defined(_F128_ENABLE_IFUNC)
#ifndef _F128_ENABLE_IFUNC
/* multiarch is not supported. Do nothing and pass through. */
#include_next <float128_private.h>
#else
@ -94,6 +94,6 @@ F128_REDIR (__lgamma_productf128)
#include <float128-ifunc-redirects-mp.h>
#include <float128-ifunc-redirects.h>
#endif /* !(IS_IN(libc) && defined(_F128_ENABLE_IFUNC) */
#endif /* _F128_ENABLE_IFUNC */
#endif /* _FLOAT128_PRIVATE_PPC64LE */

4
sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h
View File

@ -21,7 +21,7 @@
#include_next <math-type-macros-float128.h>
#if !IS_IN(libc) && defined(_F128_ENABLE_IFUNC)
#ifdef _F128_ENABLE_IFUNC
/* Include fenv.h now before turning off PLT bypass. At
minimum fereaiseexcept is used today. */
@ -115,6 +115,6 @@ F128_REDIR (__w_log1pf128);
/* Include the redirects shared with math_private.h users. */
#include <float128-ifunc-redirects.h>
#endif /* !IS_IN(libc) && defined(_F128_ENABLE_IFUNC) */
#endif /* _F128_ENABLE_IFUNC */
#endif /*_MATH_TYPE_MACROS_FLOAT128_PPC64_MULTI */