###############################
# proc check_weak_available { }
###############################
-
-# weak symbols are only supported in some configs/object formats
-# this proc returns 1 if they're support, 0 if they're not, or -1 if unsure
-
-proc check_weak_available { } {
- global target_cpu
-
- # All mips targets should support it
-
- if { [ string first "mips" $target_cpu ] >= 0 } {
- return 1
- }
-
- # ELF and ECOFF support it. a.out does with gas/gld but may also with
- # other linkers, so we should try it
-
- set objformat [gcc_target_object_format]
-
- switch $objformat {
- elf { return 1 }
- ecoff { return 1 }
- a.out { return 1 }
- unknown { return -1 }
- default { return 0 }
- }
-}
+# has been moved to: gcc/testsuite/lib/target-supports.exp
##########
# weak-1.c
###########
dg-init
-dg-runtest "$srcdir/$subdir/alias-1.c" "" ""
+switch [check_alias_available "$srcdir/$subdir/alias-1.c"] {
+ yes { dg-runtest "$srcdir/$subdir/alias-1.c" "" "" }
+ no { unsupported "alias-1.c" }
+ default { fail "alias-1.c" }
+}
dg-finish
###########
###########
dg-init
-dg-runtest "$srcdir/$subdir/wkali-1.c" "" ""
+switch [check_alias_available "$srcdir/$subdir/wkali-1.c"] {
+ yes { dg-runtest "$srcdir/$subdir/wkali-1.c" "" "" }
+ no { unsupported "wkali-1.c" }
+ default { fail "wkali-1.c" }
+}
dg-finish
###########
--- /dev/null
+# Copyright (C) 1999 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# Please email any bugs, comments, and/or additions to this file to:
+# gcc-patches@gcc.gnu.org
+
+# This file defines procs for determining features supported by the target.
+
+###############################
+# proc check_weak_available { }
+###############################
+
+# weak symbols are only supported in some configs/object formats
+# this proc returns 1 if they're supported, 0 if they're not, or -1 if unsure
+
+proc check_weak_available { } {
+ global target_cpu
+
+ # All mips targets should support it
+
+ if { [ string first "mips" $target_cpu ] >= 0 } {
+ return 1
+ }
+
+ # ELF and ECOFF support it. a.out does with gas/gld but may also with
+ # other linkers, so we should try it
+
+ set objformat [gcc_target_object_format]
+
+ switch $objformat {
+ elf { return 1 }
+ ecoff { return 1 }
+ a.out { return 1 }
+ unknown { return -1 }
+ default { return 0 }
+ }
+}
+
+###############################
+# proc check_alias_available { }
+###############################
+
+# Determine if the target toolchain supports the alias attribute.
+# Parameter is the pathname of a file that can be used to test the alias support.
+# Returns yes if it does.
+# Returns no if it does not.
+# Returns dontknow if something went wrong
+# For an example of the use of this function, see gcc.dg/special/ecos.exp
+
+proc check_alias_available { testfile } {
+ global alias_available_saved
+
+ if [info exists alias_available_saved] {
+ verbose "check_alias_available returning saved $alias_available_saved" 2
+ } else {
+ verbose "check_alias_available compiling testfile $testfile" 2
+ set lines [gcc_target_compile $testfile "tmp.o" object ""]
+
+ if [string match "" $lines] then {
+ # No error messages, everything is OK.
+ set alias_available_saved yes
+ } else {
+ if [regexp "alias definitions not supported" $lines] {
+ verbose "check_alias_available target does not support aliases" 2
+
+ set objformat [gcc_target_object_format]
+
+ if { $objformat == "elf" } {
+ verbose "check_alias_available but target uses ELF format, so it ought to" 2
+ set alias_available_saved dontknow
+ } else {
+ set alias_available_saved no
+ }
+ } else {
+ set alias_available_saved dontknow
+ }
+ }
+
+ verbose "check_alias_available returning $alias_available_saved" 2
+ }
+
+ return $alias_available_saved
+}