PR debug/42487

	* lib/target-supports.exp
	(check_effective_target_function_sections): New.
	* gcc.dg/debug/dwarf2/aranges-fnsec-1.c: Check that the target supports
	function sections before proceding.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163326 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 1f591d85ecc..9cc9b6077b7 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -623,6 +623,20 @@ proc check_effective_target_tls_runtime {} {
     }]
 }
 
+# Return 1 if -ffunction-sections is supported, 0 otherwise.
+
+proc check_effective_target_function_sections {} {
+    # Darwin has its own scheme and silently accepts -ffunction-sections.
+    global target_triplet
+    if { [regexp ".*-.*-darwin.*" $target_triplet] } {
+	return 0
+    }
+    
+    return [check_no_compiler_messages functionsections assembly {
+ 	void foo (void) { }
+    } "-ffunction-sections"]
+}
+
 # Return 1 if compilation with -fgraphite is error-free for trivial 
 # code, 0 otherwise.