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Fix read-only eh_frame test

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This commit is contained in:
Anthony Green
2013-01-08 12:22:24 -05:00
parent 35ddb69c2b
commit 8962c8c8d0
3 changed files with 17 additions and 10 deletions
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11
configure vendored
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@@ -14635,11 +14635,12 @@ else
libffi_cv_ro_eh_frame=no
echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
libffi_cv_ro_eh_frame=yes
elif grep '.section.*eh_frame.*#alloc' conftest.c \
| grep -v '#write' > /dev/null; then
if $CC $CFLAGS -c -fpic -fexceptions -o conftest.o conftest.c > /dev/null 2>&1; then
objdump -h conftest.o > conftest.dump 2>&1
libffi_eh_frame_line=`grep -n eh_frame conftest.dump | cut -d: -f 1`
libffi_test_line=`expr $libffi_eh_frame_line + 1`p
sed -n $libffi_test_line conftest.dump > conftest.line
if grep READONLY conftest.line > /dev/null; then
libffi_cv_ro_eh_frame=yes
fi
fi