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elf/Makefile: Run IFUNC tests if binutils supports IFUNC
We should run IFUNC tests with --disable-multi-arch if the toolchain supports IFUNCs. For correctness, --disable-multi-arch must not remove IFUNC support from the loader. Tested on x86-64, x32 and i686 with and without --disable-multi-arch. * configure.ac (have-ifunc): New LIBC_CONFIG_VAR. * configure: Regenerated. * elf/Makefile: Run IFUNC tests if binutils supports IFUNC. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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@ -1,3 +1,9 @@
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2019-02-27 H.J. Lu <hongjiu.lu@intel.com>
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* configure.ac (have-ifunc): New LIBC_CONFIG_VAR.
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* configure: Regenerated.
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* elf/Makefile: Run IFUNC tests if binutils supports IFUNC.
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2019-02-27 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Define ifunc
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2
configure
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2
configure
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@ -6794,6 +6794,8 @@ if test x"$libc_cv_ld_gnu_indirect_function" = xyes; then
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$as_echo "#define HAVE_IFUNC 1" >>confdefs.h
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fi
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config_vars="$config_vars
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have-ifunc = $libc_cv_ld_gnu_indirect_function"
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if test x"$libc_cv_gcc_indirect_function" = xyes; then
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$as_echo "#define HAVE_GCC_IFUNC 1" >>confdefs.h
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@ -1804,6 +1804,7 @@ AC_SUBST(libc_cv_gcc_unwind_find_fde)
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if test x"$libc_cv_ld_gnu_indirect_function" = xyes; then
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AC_DEFINE(HAVE_IFUNC)
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fi
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LIBC_CONFIG_VAR([have-ifunc], [$libc_cv_ld_gnu_indirect_function])
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if test x"$libc_cv_gcc_indirect_function" = xyes; then
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AC_DEFINE(HAVE_GCC_IFUNC)
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@ -321,7 +321,7 @@ modules-names-nobuild := filtmod1
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tests += $(tests-static)
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ifneq (no,$(multi-arch))
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ifeq (yes,$(have-ifunc))
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tests-ifuncstatic := ifuncmain1static ifuncmain1picstatic \
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ifuncmain2static ifuncmain2picstatic \
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ifuncmain4static ifuncmain4picstatic \
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