Skip IFUNC relocations in debug sections

[deliverable/binutils-gdb.git] / ld / testsuite / lib / ld-lib.exp

diff --git a/ld/testsuite/lib/ld-lib.exp b/ld/testsuite/lib/ld-lib.exp
index 6904499a10d97370f03de6c10c00b7c317ddefba..364c6facba8989f07f8801d3ab73729089e6577c 100644 (file)
--- a/ld/testsuite/lib/ld-lib.exp
+++ b/ld/testsuite/lib/ld-lib.exp
@@ -1960,6 +1960,51 @@ proc check_ifunc_available { } {
     return $ifunc_available_saved
 }
 
+# Returns true if ifunc attribute works.
+
+proc check_ifunc_attribute_available { } {
+    global ifunc_attribute_available_saved
+    global CC
+
+    if {![info exists ifunc_attribute_available_saved]} {
+        if { [which $CC] == 0 } {
+           set ifunc_attribute_available_saved 0
+           return 0
+       }
+       # Check if gcc supports -flto -fuse-linker-plugin
+       set flags ""
+       if [board_info [target_info name] exists cflags] {
+           append flags " [board_info [target_info name] cflags]"
+       }
+       if [board_info [target_info name] exists ldflags] {
+           append flags " [board_info [target_info name] ldflags]"
+       }
+
+       set basename "tmpdir/ifunc[pid]"
+       set src ${basename}.c
+       set output ${basename}.out
+       set f [open $src "w"]
+       puts $f "extern int library_func2 (void) __attribute__ ((ifunc (\"foo\")));"
+       puts $f "int main (void)"
+       puts $f "{"
+       puts $f "  if (library_func2 () != 2) __builtin_abort ();"
+       puts $f "  return 0; "
+       puts $f "}"
+       puts $f "static int library_func1 (void) {return 2; }"
+       puts $f "void *foo (void) { return library_func1; }"
+       close $f
+       remote_download host $src
+       set ifunc_attribute_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
+       if { $ifunc_attribute_available_saved == 1 } {
+         set ifunc_attribute_available_saved [run_host_cmd_yesno "$output" ""]
+       }
+       remote_file host delete $src
+       remote_file host delete $output
+       file delete $src
+    }
+    return $ifunc_attribute_available_saved
+}
+
 # Provide virtual target "cfi" for targets supporting CFI.
 
 rename "istarget" "istarget_ld"