project-base/server-skynet-source-3rd-jemalloc
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Set default symbol visibility to hidden.

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Compile with -fvisibility=hidden rather than -fvisibility=internal, in
order to avoid PLT lookups for internal functions.  Also fix a
regression that caused the -fvisibility flag to be omitted, due to:
    Port to Mac OS X.
    2dbecf1f62
This commit is contained in:
Jason Evans 2011-03-15 10:25:59 -07:00
parent 0e4d0d13f9
commit fa5d245aef
1 changed files with 11 additions and 11 deletions
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22
jemalloc/configure.ac
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@ -157,17 +157,6 @@ case "${host_cpu}" in
esac esac
AC_DEFINE_UNQUOTED([CPU_SPINWAIT], [$CPU_SPINWAIT]) AC_DEFINE_UNQUOTED([CPU_SPINWAIT], [$CPU_SPINWAIT])
JE_COMPILABLE([__attribute__ syntax],
[static __attribute__((unused)) void foo(void){}],
[],
[attribute])
if test "x${attribute}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ])
if test "x$GCC" = "xyes" -a "${abi}" = "xelf"; then
JE_CFLAGS_APPEND([-fvisibility=internal])
fi
fi
dnl Platform-specific settings. abi and RPATH can probably be determined dnl Platform-specific settings. abi and RPATH can probably be determined
dnl programmatically, but doing so is error-prone, which makes it generally dnl programmatically, but doing so is error-prone, which makes it generally
dnl not worth the trouble. dnl not worth the trouble.
@ -227,6 +216,17 @@ esac
AC_SUBST([abi]) AC_SUBST([abi])
AC_SUBST([RPATH]) AC_SUBST([RPATH])
JE_COMPILABLE([__attribute__ syntax],
[static __attribute__((unused)) void foo(void){}],
[],
[attribute])
if test "x${attribute}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ])
if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then
JE_CFLAGS_APPEND([-fvisibility=hidden])
fi
fi
JE_COMPILABLE([mremap(...MREMAP_FIXED...)], [ JE_COMPILABLE([mremap(...MREMAP_FIXED...)], [
#define _GNU_SOURCE #define _GNU_SOURCE
#include <sys/mman.h> #include <sys/mman.h>