acconfig.h: Add HAVE_GAS_HIDDEN.
* acconfig.h: Add HAVE_GAS_HIDDEN.
* config.h: Regenerated.
* configure.in: Add test for .hidden pseudo-op in gas.
* configure: Regenerated.
* crtstuff.c: Include auto-host.h.
Emit additional .hidden pseudo-op for __dso_handle if the
assembler knows about it.
From-SVN: r32925
This commit is contained in:
Ulrich Drepper
parent
05ecd0e9ab
commit
6a9c5260e1
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@ -72,6 +72,9 @@
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/* Define if your assembler supports .weak. */
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#undef HAVE_GAS_WEAK
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/* Define if your assembler supports .hidden. */
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#undef HAVE_GAS_HIDDEN
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/* Define if your assembler uses the old HImode fild and fist notation. */
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#undef HAVE_GAS_FILDS_FISTS
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@ -73,6 +73,9 @@
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/* Define if your assembler supports .weak. */
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#undef HAVE_GAS_WEAK
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/* Define if your assembler supports .hidden. */
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#undef HAVE_GAS_HIDDEN
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/* Define if your assembler uses the old HImode fild and fist notation. */
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#undef HAVE_GAS_FILDS_FISTS
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@ -8834,10 +8834,28 @@ EOF
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fi
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echo "$ac_t""$gcc_cv_as_weak" 1>&6
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echo $ac_n "checking assembler hidden support""... $ac_c" 1>&6
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echo "configure:8839: checking assembler hidden support" >&5
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gcc_cv_as_hidden=
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if test x$gcc_cv_as != x; then
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# Check if we have .hidden
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echo " .hidden foobar" > conftest.s
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echo "foobar:" >> conftest.s
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if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
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cat >> confdefs.h <<\EOF
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#define HAVE_GAS_HIDDEN 1
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EOF
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gcc_cv_as_hidden="yes"
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fi
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rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
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fi
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echo "$ac_t""$gcc_cv_as_hidden" 1>&6
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case "$target" in
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sparc*-*-*)
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echo $ac_n "checking assembler .register pseudo-op support""... $ac_c" 1>&6
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echo "configure:8841: checking assembler .register pseudo-op support" >&5
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echo "configure:8859: checking assembler .register pseudo-op support" >&5
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if eval "test \"`echo '$''{'gcc_cv_as_register_pseudo_op'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -8867,7 +8885,7 @@ EOF
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case "$tm_file" in
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*64*)
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echo $ac_n "checking for 64 bit support in assembler ($gcc_cv_as)""... $ac_c" 1>&6
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echo "configure:8871: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
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echo "configure:8889: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
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if eval "test \"`echo '$''{'gcc_cv_as_flags64'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -8912,7 +8930,7 @@ EOF
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if test "x$gcc_cv_as_flags64" != xno; then
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echo $ac_n "checking for assembler offsetable %lo() support""... $ac_c" 1>&6
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echo "configure:8916: checking for assembler offsetable %lo() support" >&5
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echo "configure:8934: checking for assembler offsetable %lo() support" >&5
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if eval "test \"`echo '$''{'gcc_cv_as_offsetable_lo10'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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@ -8951,7 +8969,7 @@ EOF
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i[34567]86-*-*)
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echo $ac_n "checking assembler instructions""... $ac_c" 1>&6
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echo "configure:8955: checking assembler instructions" >&5
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echo "configure:8973: checking assembler instructions" >&5
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gcc_cv_as_instructions=
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if test x$gcc_cv_as != x; then
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set "filds fists" "filds mem; fists mem"
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@ -4382,6 +4382,20 @@ if test x$gcc_cv_as != x; then
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fi
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AC_MSG_RESULT($gcc_cv_as_weak)
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AC_MSG_CHECKING(assembler hidden support)
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gcc_cv_as_hidden=
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if test x$gcc_cv_as != x; then
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# Check if we have .hidden
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echo " .hidden foobar" > conftest.s
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echo "foobar:" >> conftest.s
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if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
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AC_DEFINE(HAVE_GAS_HIDDEN)
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gcc_cv_as_hidden="yes"
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fi
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rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
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fi
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AC_MSG_RESULT($gcc_cv_as_hidden)
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case "$target" in
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sparc*-*-*)
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AC_CACHE_CHECK([assembler .register pseudo-op support],
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@ -52,6 +52,7 @@ Boston, MA 02111-1307, USA. */
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compiled for the target, and hence definitions concerning only the host
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do not apply. */
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#include "auto-host.h"
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#include "tm.h"
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#include "tsystem.h"
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@ -132,7 +133,17 @@ typedef void (*func_ptr) (void);
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#ifdef OBJECT_FORMAT_ELF
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/* Declare the __dso_handle variable. It should have a unique value
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in every shared-object; in a main program its value is zero. */
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in every shared-object; in a main program its value is zero. The
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object should in any case be protected. This means the instance
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in one DSO or the main program is not used in another object. The
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dynamic linker takes care of this. */
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/* XXX Ideally the following should be implemented using
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__attribute__ ((__visibility__ ("hidden")))
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but the __attribute__ support is not yet there. */
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#ifdef HAVE_GAS_HIDDEN
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asm (".hidden\t__dso_handle");
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#endif
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#ifdef CRTSTUFFS_O
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void *__dso_handle = &__dso_handle;
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