* configure.ac (gcc_cv_as_cfi_advance_working): Use objdump

	instead of readelf in the test.
	(gcc_cv_as_cfi_sections_directive): Check for correct relocation
	in the .debug_frame section for coff targets.
	* configure: Rebuild.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163793 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0e34ff7..44c1da8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2010-09-02  Richard Henderson  <rth@redhat.com>
+
+       * configure.ac (gcc_cv_as_cfi_advance_working): Use objdump
+       instead of readelf in the test.
+       (gcc_cv_as_cfi_sections_directive): Check for correct relocation
+       in the .debug_frame section for coff targets.
+       * configure: Rebuild.
+
 2010-09-02  Anatoly Sokolov  <aesok@post.ru>
 
        * config/m32c/m32c.h (CLASS_LIKELY_SPILLED_P): Remove.

diff --git a/gcc/configure b/gcc/configure
index c7a457a..f6230e4 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -21585,7 +21585,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_cfi_directive" >&5
 $as_echo "$gcc_cv_as_cfi_directive" >&6; }
 
-if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then
+if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for working cfi advance" >&5
 $as_echo_n "checking assembler for working cfi advance... " >&6; }
 if test "${gcc_cv_as_cfi_advance_working+set}" = set; then :
@@ -21607,7 +21607,7 @@ else
   test $ac_status = 0; }; }
     then
 
-if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
+if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \
     | grep 'DW_CFA_advance_loc[24]:[   ][      ]*75040[        ]' >/dev/null; then
    gcc_cv_as_cfi_advance_working=yes
 fi
@@ -21623,7 +21623,7 @@ fi
 $as_echo "$gcc_cv_as_cfi_advance_working" >&6; }
 
 else
-  # no readelf, err on the side of caution
+  # no objdump, err on the side of caution
   gcc_cv_as_cfi_advance_working=no
 fi
 
@@ -21687,7 +21687,22 @@ else
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }
     then
-       gcc_cv_as_cfi_sections_directive=yes
+       case $target_os in
+  win32 | pe | cygwin* | mingw32* | uwin*)
+    # Need to check that we generated the correct relocation for the
+    # .debug_frame section.  This was fixed for binutils 2.21.
+    gcc_cv_as_cfi_sections_directive=no
+    if test "x$gcc_cv_objdump" != x; then
+     if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \
+       grep secrel > /dev/null; then
+      gcc_cv_as_cfi_sections_directive=yes
+     fi
+    fi
+    ;;
+  *)
+    gcc_cv_as_cfi_sections_directive=yes
+    ;;
+esac
     else
       echo "configure: failed program was" >&5
       cat conftest.s >&5

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 1fcb87a..3308667 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -2405,7 +2405,7 @@ gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
     gcc_cv_as_cfi_directive=yes
     ;;
 esac])
-if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then
+if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then
 gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
   ,,
 [      .text
@@ -2415,13 +2415,13 @@ gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
        .cfi_adjust_cfa_offset 128
        .cfi_endproc],
 [[
-if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
+if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \
     | grep 'DW_CFA_advance_loc[24]:[   ][      ]*75040[        ]' >/dev/null; then
    gcc_cv_as_cfi_advance_working=yes
 fi
 ]])
 else
-  # no readelf, err on the side of caution
+  # no objdump, err on the side of caution
   gcc_cv_as_cfi_advance_working=no
 fi
 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
@@ -2445,7 +2445,23 @@ gcc_GAS_CHECK_FEATURE([cfi sections directive],
 [      .text
        .cfi_sections .debug_frame, .eh_frame
        .cfi_startproc
-       .cfi_endproc])
+       .cfi_endproc],
+[case $target_os in
+  win32 | pe | cygwin* | mingw32* | uwin*)
+    # Need to check that we generated the correct relocation for the
+    # .debug_frame section.  This was fixed for binutils 2.21.
+    gcc_cv_as_cfi_sections_directive=no
+    if test "x$gcc_cv_objdump" != x; then
+     if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \
+       grep secrel > /dev/null; then
+      gcc_cv_as_cfi_sections_directive=yes
+     fi
+    fi
+    ;;
+  *)
+    gcc_cv_as_cfi_sections_directive=yes
+    ;;
+esac])
 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE,
   [`if test $gcc_cv_as_cfi_sections_directive = yes;
     then echo 1; else echo 0; fi`],