+2008-11-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
+
+ PR other/37463
+ * configure.ac (gcc_cv_ld_ro_rw_mix): Move before
+ gcc_cv_as_cfi_directive.
+ (gcc_cv_as_cfi_directive) [*-*-solaris*]: Check if linker supports
+ merging read-only and read-write sections or assembler emits
+ read-write .eh_frame sections.
+ * configure: Regenerate.
+
2008-11-03 Nathan Froyd <froydnj@codesourcery.com>
Revert:
fi
+echo "$as_me:$LINENO: checking linker read-only and read-write section mixing" >&5
+echo $ECHO_N "checking linker read-only and read-write section mixing... $ECHO_C" >&6
+gcc_cv_ld_ro_rw_mix=unknown
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_ro_rw_mix=read-write
+ fi
+elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
+ echo '.section myfoosect, "a"' > conftest1.s
+ echo '.section myfoosect, "aw"' > conftest2.s
+ echo '.byte 1' >> conftest2.s
+ echo '.section myfoosect, "a"' > conftest3.s
+ echo '.byte 0' >> conftest3.s
+ if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
+ && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
+ && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
+ conftest2.o conftest3.o > /dev/null 2>&1; then
+ gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
+ | sed -e '/myfoosect/!d' -e N`
+ if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
+ if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
+ gcc_cv_ld_ro_rw_mix=read-only
+ else
+ gcc_cv_ld_ro_rw_mix=read-write
+ fi
+ fi
+ fi
+ rm -f conftest.* conftest[123].*
+fi
+if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_LD_RO_RW_SECTION_MIXING 1
+_ACEOF
+
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_ld_ro_rw_mix" >&5
+echo "${ECHO_T}$gcc_cv_ld_ro_rw_mix" >&6
+
# Check if we have .[us]leb128, and support symbol arithmetic with it.
echo "$as_me:$LINENO: checking assembler for .sleb128 and .uleb128" >&5
echo $ECHO_N "checking assembler for .sleb128 and .uleb128... $ECHO_C" >&6
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }
then
- gcc_cv_as_cfi_directive=yes
+ case "$target" in
+ *-*-solaris*)
+ # If the linker used on Solaris (like Sun ld) isn't capable of merging
+ # read-only and read-write sections, we need to make sure that the
+ # assembler used emits read-write .eh_frame sections.
+ if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
+ if test "x$gcc_cv_objdump" != x; then
+ if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
+ sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
+ gcc_cv_as_cfi_directive=no
+ else
+ gcc_cv_as_cfi_directive=yes
+ fi
+ else
+ # no objdump, err on the side of caution
+ gcc_cv_as_cfi_directive=no
+ fi
+ else
+ gcc_cv_as_cfi_directive=yes
+ fi
+ ;;
+ *-*-*)
+ gcc_cv_as_cfi_directive=yes
+ ;;
+esac
else
echo "configure: failed program was" >&5
cat conftest.s >&5
fi
-echo "$as_me:$LINENO: checking linker read-only and read-write section mixing" >&5
-echo $ECHO_N "checking linker read-only and read-write section mixing... $ECHO_C" >&6
-gcc_cv_ld_ro_rw_mix=unknown
-if test $in_tree_ld = yes ; then
- if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
- && test $in_tree_ld_is_elf = yes; then
- gcc_cv_ld_ro_rw_mix=read-write
- fi
-elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
- echo '.section myfoosect, "a"' > conftest1.s
- echo '.section myfoosect, "aw"' > conftest2.s
- echo '.byte 1' >> conftest2.s
- echo '.section myfoosect, "a"' > conftest3.s
- echo '.byte 0' >> conftest3.s
- if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
- && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
- && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
- && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
- conftest2.o conftest3.o > /dev/null 2>&1; then
- gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
- | sed -e '/myfoosect/!d' -e N`
- if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
- if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
- gcc_cv_ld_ro_rw_mix=read-only
- else
- gcc_cv_ld_ro_rw_mix=read-write
- fi
- fi
- fi
- rm -f conftest.* conftest[123].*
-fi
-if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LD_RO_RW_SECTION_MIXING 1
-_ACEOF
-
-fi
-echo "$as_me:$LINENO: result: $gcc_cv_ld_ro_rw_mix" >&5
-echo "${ECHO_T}$gcc_cv_ld_ro_rw_mix" >&6
-
echo "$as_me:$LINENO: checking linker PT_GNU_EH_FRAME support" >&5
echo $ECHO_N "checking linker PT_GNU_EH_FRAME support... $ECHO_C" >&6
gcc_cv_ld_eh_frame_hdr=no
[Define if your assembler and linker support .hidden.])
fi
+AC_MSG_CHECKING(linker read-only and read-write section mixing)
+gcc_cv_ld_ro_rw_mix=unknown
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_ro_rw_mix=read-write
+ fi
+elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
+ echo '.section myfoosect, "a"' > conftest1.s
+ echo '.section myfoosect, "aw"' > conftest2.s
+ echo '.byte 1' >> conftest2.s
+ echo '.section myfoosect, "a"' > conftest3.s
+ echo '.byte 0' >> conftest3.s
+ if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
+ && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
+ && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
+ conftest2.o conftest3.o > /dev/null 2>&1; then
+ gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
+ | sed -e '/myfoosect/!d' -e N`
+ if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
+ if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
+ gcc_cv_ld_ro_rw_mix=read-only
+ else
+ gcc_cv_ld_ro_rw_mix=read-write
+ fi
+ fi
+ fi
+changequote(,)dnl
+ rm -f conftest.* conftest[123].*
+changequote([,])dnl
+fi
+if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
+ AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
+ [Define if your linker links a mix of read-only
+ and read-write sections into a read-write section.])
+fi
+AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
+
# Check if we have .[us]leb128, and support symbol arithmetic with it.
gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
[elf,2,11,0],,
.cfi_same_value 1
.cfi_def_cfa 1, 2
.cfi_escape 1, 2, 3, 4, 5
- .cfi_endproc])
+ .cfi_endproc],
+[case "$target" in
+ *-*-solaris*)
+ # If the linker used on Solaris (like Sun ld) isn't capable of merging
+ # read-only and read-write sections, we need to make sure that the
+ # assembler used emits read-write .eh_frame sections.
+ if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
+ if test "x$gcc_cv_objdump" != x; then
+ if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
+ sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
+ gcc_cv_as_cfi_directive=no
+ else
+ gcc_cv_as_cfi_directive=yes
+ fi
+ else
+ # no objdump, err on the side of caution
+ gcc_cv_as_cfi_directive=no
+ fi
+ else
+ gcc_cv_as_cfi_directive=yes
+ fi
+ ;;
+ *-*-*)
+ gcc_cv_as_cfi_directive=yes
+ ;;
+esac])
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
[`if test $gcc_cv_as_cfi_directive = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler supports CFI directives.])
[Define if the assembler won't complain about a line such as # 0 "" 2.])
fi
-AC_MSG_CHECKING(linker read-only and read-write section mixing)
-gcc_cv_ld_ro_rw_mix=unknown
-if test $in_tree_ld = yes ; then
- if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
- && test $in_tree_ld_is_elf = yes; then
- gcc_cv_ld_ro_rw_mix=read-write
- fi
-elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
- echo '.section myfoosect, "a"' > conftest1.s
- echo '.section myfoosect, "aw"' > conftest2.s
- echo '.byte 1' >> conftest2.s
- echo '.section myfoosect, "a"' > conftest3.s
- echo '.byte 0' >> conftest3.s
- if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
- && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
- && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
- && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
- conftest2.o conftest3.o > /dev/null 2>&1; then
- gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
- | sed -e '/myfoosect/!d' -e N`
- if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
- if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
- gcc_cv_ld_ro_rw_mix=read-only
- else
- gcc_cv_ld_ro_rw_mix=read-write
- fi
- fi
- fi
-changequote(,)dnl
- rm -f conftest.* conftest[123].*
-changequote([,])dnl
-fi
-if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
- AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
- [Define if your linker links a mix of read-only
- and read-write sections into a read-write section.])
-fi
-AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
-
AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
gcc_cv_ld_eh_frame_hdr=no
if test $in_tree_ld = yes ; then
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