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.
Otherwise we mark section withc SECTION_EXCLUDE flag
as never-load.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@179308
138bc75d-0d04-0410-961f-
82ee72b054a4
+2011-09-28 Kai Tietz <ktietz@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.
+ Otherwise we mark section withc SECTION_EXCLUDE flag
+ as never-load.
+
2011-09-28 Richard Sandiford <rdsandiford@googlemail.com>
* config/m32r/m32r.md: Use match_test rather than eq/ne symbol_ref
#endif
+/* Define if your assembler supports specifying the section flag e. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_GAS_SECTION_EXCLUDE
+#endif
+
+
/* Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.
*/
#ifndef USED_FOR_TARGET
{
char flagchars[8], *f = flagchars;
+#if defined (HAVE_GAS_SECTION_EXCLUDE) && HAVE_GAS_SECTION_EXCLUDE == 1
+ if ((flags & SECTION_EXCLUDE) != 0)
+ *f++ = 'e';
+#endif
+
if ((flags & (SECTION_CODE | SECTION_WRITE)) == 0)
/* readonly data */
{
*f++ = 'w';
if (flags & SECTION_PE_SHARED)
*f++ = 's';
+#if !defined (HAVE_GAS_SECTION_EXCLUDE) || HAVE_GAS_SECTION_EXCLUDE == 0
+ /* If attribute "e" isn't supported we mark this section as
+ never-load. */
+ if ((flags & SECTION_EXCLUDE) != 0)
+ *f++ = 'n';
+#endif
}
/* LTO sections need 1-byte alignment to avoid confusing the
;;
esac
fi
+ # Test if the assembler supports the section flag 'e' for specifying
+ # an excluded section.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .section with e" >&5
+$as_echo_n "checking assembler for .section with e... " >&6; }
+if test "${gcc_cv_as_section_has_e+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ gcc_cv_as_section_has_e=no
+ if test $in_tree_gas = yes; then
+ if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 22 \) \* 1000 + 51`
+ then gcc_cv_as_section_has_e=yes
+fi
+ elif test x$gcc_cv_as != x; then
+ $as_echo '.section foo1,"e"
+.byte 0,0,0,0' > conftest.s
+ if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ gcc_cv_as_section_has_e=yes
+ else
+ echo "configure: failed program was" >&5
+ cat conftest.s >&5
+ fi
+ rm -f conftest.o conftest.s
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_section_has_e" >&5
+$as_echo "$gcc_cv_as_section_has_e" >&6; }
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_GAS_SECTION_EXCLUDE `if test $gcc_cv_as_section_has_e = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
;;
esac
;;
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