re PR other/37463 (All Solaris/x86 eh tests fail)
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. From-SVN: r141555
This commit is contained in:
Rainer Orth
Rainer Orth
parent
e1ece9f1f2
commit
e73da78efc
3 changed files with 141 additions and 82 deletions
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@ -1,3 +1,13 @@
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2008-11-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
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PR other/37463
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* configure.ac (gcc_cv_ld_ro_rw_mix): Move before
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gcc_cv_as_cfi_directive.
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(gcc_cv_as_cfi_directive) [*-*-solaris*]: Check if linker supports
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merging read-only and read-write sections or assembler emits
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read-write .eh_frame sections.
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* configure: Regenerate.
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2008-11-03 Nathan Froyd <froydnj@codesourcery.com>
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Revert:
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108
gcc/configure
vendored
108
gcc/configure
vendored
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@ -21471,6 +21471,47 @@ _ACEOF
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fi
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echo "$as_me:$LINENO: checking linker read-only and read-write section mixing" >&5
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echo $ECHO_N "checking linker read-only and read-write section mixing... $ECHO_C" >&6
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gcc_cv_ld_ro_rw_mix=unknown
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if test $in_tree_ld = yes ; then
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if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
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&& test $in_tree_ld_is_elf = yes; then
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
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echo '.section myfoosect, "a"' > conftest1.s
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echo '.section myfoosect, "aw"' > conftest2.s
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echo '.byte 1' >> conftest2.s
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echo '.section myfoosect, "a"' > conftest3.s
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echo '.byte 0' >> conftest3.s
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if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
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conftest2.o conftest3.o > /dev/null 2>&1; then
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gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
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| sed -e '/myfoosect/!d' -e N`
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if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
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if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
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gcc_cv_ld_ro_rw_mix=read-only
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else
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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fi
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fi
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rm -f conftest.* conftest[123].*
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fi
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if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_LD_RO_RW_SECTION_MIXING 1
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_ACEOF
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fi
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echo "$as_me:$LINENO: result: $gcc_cv_ld_ro_rw_mix" >&5
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echo "${ECHO_T}$gcc_cv_ld_ro_rw_mix" >&6
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# Check if we have .[us]leb128, and support symbol arithmetic with it.
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echo "$as_me:$LINENO: checking assembler for .sleb128 and .uleb128" >&5
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echo $ECHO_N "checking assembler for .sleb128 and .uleb128... $ECHO_C" >&6
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@ -21552,7 +21593,31 @@ else
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }
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then
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gcc_cv_as_cfi_directive=yes
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case "$target" in
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*-*-solaris*)
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# If the linker used on Solaris (like Sun ld) isn't capable of merging
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# read-only and read-write sections, we need to make sure that the
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# assembler used emits read-write .eh_frame sections.
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if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
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if test "x$gcc_cv_objdump" != x; then
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if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
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sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
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gcc_cv_as_cfi_directive=no
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else
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gcc_cv_as_cfi_directive=yes
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fi
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else
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# no objdump, err on the side of caution
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gcc_cv_as_cfi_directive=no
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fi
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else
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gcc_cv_as_cfi_directive=yes
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fi
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;;
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*-*-*)
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gcc_cv_as_cfi_directive=yes
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;;
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esac
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else
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echo "configure: failed program was" >&5
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cat conftest.s >&5
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@ -23876,47 +23941,6 @@ _ACEOF
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fi
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echo "$as_me:$LINENO: checking linker read-only and read-write section mixing" >&5
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echo $ECHO_N "checking linker read-only and read-write section mixing... $ECHO_C" >&6
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gcc_cv_ld_ro_rw_mix=unknown
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if test $in_tree_ld = yes ; then
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if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
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&& test $in_tree_ld_is_elf = yes; then
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
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echo '.section myfoosect, "a"' > conftest1.s
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echo '.section myfoosect, "aw"' > conftest2.s
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echo '.byte 1' >> conftest2.s
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echo '.section myfoosect, "a"' > conftest3.s
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echo '.byte 0' >> conftest3.s
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if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
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conftest2.o conftest3.o > /dev/null 2>&1; then
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gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
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| sed -e '/myfoosect/!d' -e N`
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if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
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if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
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gcc_cv_ld_ro_rw_mix=read-only
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else
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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fi
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fi
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rm -f conftest.* conftest[123].*
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fi
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if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_LD_RO_RW_SECTION_MIXING 1
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_ACEOF
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fi
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echo "$as_me:$LINENO: result: $gcc_cv_ld_ro_rw_mix" >&5
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echo "${ECHO_T}$gcc_cv_ld_ro_rw_mix" >&6
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echo "$as_me:$LINENO: checking linker PT_GNU_EH_FRAME support" >&5
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echo $ECHO_N "checking linker PT_GNU_EH_FRAME support... $ECHO_C" >&6
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gcc_cv_ld_eh_frame_hdr=no
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105
gcc/configure.ac
105
gcc/configure.ac
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@ -2150,6 +2150,45 @@ if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
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[Define if your assembler and linker support .hidden.])
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fi
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AC_MSG_CHECKING(linker read-only and read-write section mixing)
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gcc_cv_ld_ro_rw_mix=unknown
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if test $in_tree_ld = yes ; then
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if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
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&& test $in_tree_ld_is_elf = yes; then
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
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echo '.section myfoosect, "a"' > conftest1.s
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echo '.section myfoosect, "aw"' > conftest2.s
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echo '.byte 1' >> conftest2.s
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echo '.section myfoosect, "a"' > conftest3.s
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echo '.byte 0' >> conftest3.s
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if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
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conftest2.o conftest3.o > /dev/null 2>&1; then
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gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
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| sed -e '/myfoosect/!d' -e N`
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if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
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if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
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gcc_cv_ld_ro_rw_mix=read-only
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else
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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fi
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fi
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changequote(,)dnl
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rm -f conftest.* conftest[123].*
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changequote([,])dnl
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fi
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if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
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AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
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[Define if your linker links a mix of read-only
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and read-write sections into a read-write section.])
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fi
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AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
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# Check if we have .[us]leb128, and support symbol arithmetic with it.
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gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
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[elf,2,11,0],,
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@ -2189,7 +2228,32 @@ gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
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.cfi_same_value 1
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.cfi_def_cfa 1, 2
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.cfi_escape 1, 2, 3, 4, 5
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.cfi_endproc])
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.cfi_endproc],
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[case "$target" in
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*-*-solaris*)
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# If the linker used on Solaris (like Sun ld) isn't capable of merging
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# read-only and read-write sections, we need to make sure that the
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# assembler used emits read-write .eh_frame sections.
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if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
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if test "x$gcc_cv_objdump" != x; then
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if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
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sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
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gcc_cv_as_cfi_directive=no
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else
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gcc_cv_as_cfi_directive=yes
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fi
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else
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# no objdump, err on the side of caution
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gcc_cv_as_cfi_directive=no
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fi
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else
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gcc_cv_as_cfi_directive=yes
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fi
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;;
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*-*-*)
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gcc_cv_as_cfi_directive=yes
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;;
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esac])
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AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
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[`if test $gcc_cv_as_cfi_directive = yes; then echo 1; else echo 0; fi`],
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[Define 0/1 if your assembler supports CFI directives.])
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@ -3218,45 +3282,6 @@ if test "x$gcc_cv_as_line_zero" = xyes; then
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[Define if the assembler won't complain about a line such as # 0 "" 2.])
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fi
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AC_MSG_CHECKING(linker read-only and read-write section mixing)
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gcc_cv_ld_ro_rw_mix=unknown
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if test $in_tree_ld = yes ; then
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if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
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&& test $in_tree_ld_is_elf = yes; then
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
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echo '.section myfoosect, "a"' > conftest1.s
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echo '.section myfoosect, "aw"' > conftest2.s
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echo '.byte 1' >> conftest2.s
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echo '.section myfoosect, "a"' > conftest3.s
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echo '.byte 0' >> conftest3.s
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if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
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&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
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conftest2.o conftest3.o > /dev/null 2>&1; then
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gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
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| sed -e '/myfoosect/!d' -e N`
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if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
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if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
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gcc_cv_ld_ro_rw_mix=read-only
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else
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gcc_cv_ld_ro_rw_mix=read-write
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fi
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fi
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fi
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changequote(,)dnl
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rm -f conftest.* conftest[123].*
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changequote([,])dnl
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fi
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if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
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AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
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[Define if your linker links a mix of read-only
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and read-write sections into a read-write section.])
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fi
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AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
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AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
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gcc_cv_ld_eh_frame_hdr=no
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if test $in_tree_ld = yes ; then
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