args := asmArgs(a, p)
		args = append(args, "-gensymabis", "-o", path)
		for _, sfile := range sfiles {
			if p.ImportPath == "runtime/cgo" && strings.HasPrefix(sfile, "gcc_") {
				continue
			}
			op, _ := fsys.OverlayPath(mkAbs(p.Dir, sfile))
			args = append(args, op)
		}

		// Supply an empty go_asm.h as if the compiler had been run.

	if err != nil {
		t.Fatalf("gdb exited with error: %v", err)
	}

	// Check that the backtrace matches
	// We check the 3 inner most frames only as they are present certainly, according to gcc_<OS>_arm64.c
	bt := []string{
		`setg_gcc`,
		`crosscall1`,
		`threadentry`,
	}
	for i, name := range bt {
		s := fmt.Sprintf("#%v.*%v", i, name)
		re := regexp.MustCompile(s)

		// There is one exception: runtime/cgo's job is to bridge the
		// cgo and non-cgo worlds, so it necessarily has files in both.
		// In that case gcc only gets the gcc_* files.
		var gccfiles []string
		gccfiles = append(gccfiles, cfiles...)
		cfiles = nil
		if p.Standard && p.ImportPath == "runtime/cgo" {
			filter := func(files, nongcc, gcc []string) ([]string, []string) {

Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.3

 * limitations under the License.
 */

package org.gradle.nativeplatform.toolchain;

import org.gradle.api.Incubating;

/**
 * The <a href="http://gcc.gnu.org/">GNU GCC</a> tool chain.
 */
@Incubating
public interface Gcc extends GccCompatibleToolChain {

			n := &Name{Go: s, C: s}
			names = append(names, n)
			optional[n] = true
		}

		// Otherwise, we'll need to find out from gcc.
		names = append(names, n)
	}

	// Bypass gcc if there's nothing left to find out.
	if len(names) == 0 {
		return needType
	}

	// Coerce gcc into telling us whether each name is a type, a value, or undeclared.
	// For names, find out whether they are integer constants.

@@ -107,6 +107,11 @@
 # endif
 #endif
 
+#ifndef __attribute_copy__
+/* Provide an empty definition when cdefs.h is not included.  */
+# define __attribute_copy__(arg)
+#endif
+
 #ifndef __ASSEMBLER__
 /* GCC understands weak symbols and aliases; use its interface where
    possible, instead of embedded assembly language.  */
@@ -114,7 +119,8 @@
 /* Define ALIASNAME as a strong alias for NAME.  */

  rpm2cpio "devtoolset-9-gcc-9.3.1-2.2.el7.src.rpm" |cpio -idmv
  tar -xvf "gcc-9.3.1-20200408.tar.xz" --strip 1
  ;;
devtoolset-10)
  wget --retry-connrefused --waitretry=1 --read-timeout=20 --timeout=15 --tries=5 "https://vault.centos.org/centos/7/sclo/Source/rh/devtoolset-10-gcc-10.2.1-11.2.el7.src.rpm"
  rpm2cpio "devtoolset-10-gcc-10.2.1-11.2.el7.src.rpm" |cpio -idmv

Andrew Gerrand <******@****.***> 1441330476 +0000

Russ Cox <******@****.***> 1410149331 -0400