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configure.ac (HAVE_AS_NO_SHARED): New AC_DEFINE.

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gcc/
	* configure.ac (HAVE_AS_NO_SHARED): New AC_DEFINE.  Test for the
	-mno-shared assembler option on mips targets.
	* configure, config.in: Regenerate.
	* config/mips/linux.h (NO_SHARED_SPECS): New macro.
	(DRIVER_SELF_SPECS): Define to NO_SHARED_SPECS if non-empty.
	* config/mips/linux64.h (DRIVER_SELF_SPECS): Include NO_SHARED_SPECS.

From-SVN: r118138
This commit is contained in:
Richard Sandiford 2006-10-29 11:13:14 +00:00 committed by Richard Sandiford
parent 5f687d19e0
commit 4551169f83
6 changed files with 66 additions and 0 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2006-10-29 Richard Sandiford <richard@codesourcery.com>
* configure.ac (HAVE_AS_NO_SHARED): New AC_DEFINE. Test for the
-mno-shared assembler option on mips targets.
* configure, config.in: Regenerate.
* config/mips/linux.h (NO_SHARED_SPECS): New macro.
(DRIVER_SELF_SPECS): Define to NO_SHARED_SPECS if non-empty.
* config/mips/linux64.h (DRIVER_SELF_SPECS): Include NO_SHARED_SPECS.
2006-10-29 Richard Sandiford <richard@codesourcery.com>
* config/mips/mips.c (mips_classify_symbol): Test DECL_WEAK as well

6
gcc/config.in
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@ -239,6 +239,12 @@
#endif
/* Define if the assembler understands -mno-shared. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_NO_SHARED
#endif
/* Define if your assembler supports offsetable %lo(). */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_OFFSETABLE_LO10

9
gcc/config/mips/linux.h
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@ -179,3 +179,12 @@ Boston, MA 02110-1301, USA. */
%{profile:-lc_p} %{!profile: -lc}}"
#define MD_UNWIND_SUPPORT "config/mips/linux-unwind.h"
#ifdef HAVE_AS_NO_SHARED
/* Default to -mno-shared for non-PIC. */
#define NO_SHARED_SPECS \
"%{mshared|mno-shared|fpic|fPIC|fpie|fPIE:;:-mno-shared}",
#define DRIVER_SELF_SPECS NO_SHARED_SPECS
#else
#define NO_SHARED_SPECS
#endif

2
gcc/config/mips/linux64.h
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@ -21,7 +21,9 @@ Boston, MA 02110-1301, USA. */
/* Force the default endianness and ABI flags onto the command line
in order to make the other specs easier to write. */
#undef DRIVER_SELF_SPECS
#define DRIVER_SELF_SPECS \
NO_SHARED_SPECS \
"%{!EB:%{!EL:%(endian_spec)}}", \
"%{!mabi=*: -mabi=n32}"

36
gcc/configure vendored
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@ -15589,6 +15589,42 @@ if test $gcc_cv_as_mips_explicit_relocs = yes; then
then target_cpu_default=MASK_EXPLICIT_RELOCS
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
fi
fi
echo "$as_me:$LINENO: checking assembler for -mno-shared support" >&5
echo $ECHO_N "checking assembler for -mno-shared support... $ECHO_C" >&6
if test "${gcc_cv_as_mips_no_shared+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
gcc_cv_as_mips_no_shared=no
if test $in_tree_gas = yes; then
if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 16 \) \* 1000 + 0`
then gcc_cv_as_mips_no_shared=yes
fi
elif test x$gcc_cv_as != x; then
echo 'nop' > conftest.s
if { ac_try='$gcc_cv_as -mno-shared -o conftest.o conftest.s >&5'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }
then
gcc_cv_as_mips_no_shared=yes
else
echo "configure: failed program was" >&5
cat conftest.s >&5
fi
rm -f conftest.o conftest.s
fi
fi
echo "$as_me:$LINENO: result: $gcc_cv_as_mips_no_shared" >&5
echo "${ECHO_T}$gcc_cv_as_mips_no_shared" >&6
if test $gcc_cv_as_mips_no_shared = yes; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_AS_NO_SHARED 1
_ACEOF
fi
;;
esac

4
gcc/configure.ac
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@ -2952,6 +2952,10 @@ LCF0:
then target_cpu_default=MASK_EXPLICIT_RELOCS
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
fi])
gcc_GAS_CHECK_FEATURE([-mno-shared support],
gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
[AC_DEFINE(HAVE_AS_NO_SHARED, 1,
[Define if the assembler understands -mno-shared.])])
;;
esac