Hi,
this patch enables same feature as in thread "[google] Add
SECTION_EXCLUDE flag and exclude .gnu.callgraph sections
(issue5126041)" for pe-coff x86 and x64 targets.
ChangeLog
2011-09-27 Kai Tietz <kti...@redhat.com>
* configure.ac: Add test for new section attribute
specifier "e" via define HAVE_GAS_SECTION_EXCLUDE.
* config.in: Regenerated.
* configure: Regenerated.
* config/i386/winnt.c (i386_pe_asm_named_section): Emit
new section flag "e" for excluded sections, if supported.
Tested for x86_64-w64-mingw32, i686-w64-mingw32, and i686-pc-cygwin.
Ok for apply?
Index: gcc/gcc/config/i386/winnt.c
===================================================================
--- gcc.orig/gcc/config/i386/winnt.c
+++ gcc/gcc/config/i386/winnt.c
@@ -484,6 +484,11 @@ i386_pe_asm_named_section (const char *n
{
char flagchars[8], *f = flagchars;
+#ifdef HAVE_GAS_SECTION_EXCLUDE
+ if ((flags & SECTION_EXCLUDE) != 0)
+ *f++ = 'e';
+#endif
+
if ((flags & (SECTION_CODE | SECTION_WRITE)) == 0)
/* readonly data */
{
Index: gcc/gcc/configure.ac
===================================================================
--- gcc.orig/gcc/configure.ac
+++ gcc/gcc/configure.ac
@@ -3553,6 +3553,15 @@ foo: nop
;;
esac
fi
+ # Test if the assembler supports the section flag 'e' for specifying
+ # an excluded section.
+ gcc_GAS_CHECK_FEATURE([.section with e], gcc_cv_as_section_has_e,
+ [2,22,51],,
+[.section foo1,"e"
+.byte 0,0,0,0])
+ AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE,
+ [`if test $gcc_cv_as_section_has_e = yes; then echo 1; else echo 0;
fi`],
+ [Define if your assembler supports specifying the section flag e.])
;;
esac
