From 33aa234e0c9062e1879c399616d1b917bcd987c0 Mon Sep 17 00:00:00 2001
From: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Sat, 20 Sep 2008 08:42:53 +0000
Subject: 	Provide virtual target "cfi" for targets supporting CFI. 
 * ld-elf/eh-frame-hdr.d: Replace target and xfail statements by single 
 `target: cfi'. 	* ld-elf/eh-group.exp: Call check_as_cfi instead of
 is_elf_format. 	* ld-elf/eh-group1.s, elf/eh-group2.s: Use more
 compatible section 	flags prefix '%'. 	* ld-elf/eh5.d: Replace target
 statement by `target: cfi' with an Alpha 	exception.  Relax the `Code
 alignment factor' matching. 	* lib/ld-lib.exp: Rename istarget as
 istarget_ld. 	(istarget, check_as_cfi): New procedure. 
 (run_dump_test): New comment for the virtual target `cfi'.

---
 ld/testsuite/lib/ld-lib.exp | 39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

(limited to 'ld/testsuite/lib')

diff --git a/ld/testsuite/lib/ld-lib.exp b/ld/testsuite/lib/ld-lib.exp
index 1ebb1a2..d4e996e 100644
--- a/ld/testsuite/lib/ld-lib.exp
+++ b/ld/testsuite/lib/ld-lib.exp
@@ -598,7 +598,8 @@ proc simple_diff { file_1 file_2 } {
 #
 #   target: TARGET
 #       Only run the test for TARGET.  This may occur more than once; the
-#       target being tested must match at least one.
+#       target being tested must match at least one.  You may provide target
+#       name "cfi" for any target supporting the CFI statements.
 #
 #   notarget: TARGET
 #       Do not run the test for TARGET.  This may occur more than once;
@@ -1569,3 +1570,39 @@ proc check_gc_sections_available { } {
     }
     return $gc_sections_available_saved
 }
+
+# Check if the assembler supports CFI statements.
+
+proc check_as_cfi { } {
+    global check_as_cfi_result
+    global as
+    if [info exists check_as_cfi_result] {
+	return $check_as_cfi_result
+    }
+    set as_file "tmpdir/check_as_cfi.s"
+    set as_fh [open $as_file w 0666]
+    puts $as_fh "# Generated file. DO NOT EDIT"
+    puts $as_fh "\t.cfi_startproc"
+    puts $as_fh "\t.cfi_endproc"
+    close $as_fh
+    remote_download host $as_file
+    verbose -log "Checking CFI support:"
+    rename "perror" "check_as_cfi_perror"
+    proc perror { args } { }
+    set success [ld_assemble $as $as_file "/dev/null"]
+    rename "perror" ""
+    rename "check_as_cfi_perror" "perror"
+    #remote_file host delete $as_file
+    set check_as_cfi_result $success
+    return $success
+}
+
+# Provide virtual target "cfi" for targets supporting CFI.
+
+rename "istarget" "istarget_ld"
+proc istarget { target } {
+    if {$target == "cfi"} {
+	return [check_as_cfi]
+    }
+    return [istarget_ld $target]
+}
-- 
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