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Support glibc-back-compat on 64-bit POWER

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Luke Dashjr 2018-08-23 07:27:36 +00:00 • committed by Wladimir J. van der Laan
parent 43f3ada27b
commit 798bc0b29a
2 changed files with 11 additions and 0 deletions
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5
configure.ac
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@ -813,6 +813,11 @@ AX_GCC_FUNC_ATTRIBUTE([dllimport])
if test x$use_glibc_compat != xno; then
AX_CHECK_LINK_FLAG([[-Wl,--wrap=__divmoddi4]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=__divmoddi4"])
AX_CHECK_LINK_FLAG([[-Wl,--wrap=log2f]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=log2f"])
case $host in
powerpc64* | ppc64*)
AX_CHECK_LINK_FLAG([[-Wl,--no-tls-get-addr-optimize]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--no-tls-get-addr-optimize"])
;;
esac
else
AC_SEARCH_LIBS([clock_gettime],[rt])
fi

6
src/compat/glibc_compat.cpp
View file

@ -54,6 +54,12 @@ __asm(".symver log2f_old,log2f@GLIBC_2.2.5");
__asm(".symver log2f_old,log2f@GLIBC_2.4");
#elif defined(__aarch64__)
__asm(".symver log2f_old,log2f@GLIBC_2.17");
#elif defined(__powerpc64__)
# ifdef WORDS_BIGENDIAN
__asm(".symver log2f_old,log2f@GLIBC_2.3");
# else
__asm(".symver log2f_old,log2f@GLIBC_2.17");
# endif
#elif defined(__riscv)
__asm(".symver log2f_old,log2f@GLIBC_2.27");
#endif