<!--{
	"Title": "A Quick Guide to Go's Assembler",
	"Path":  "/doc/asm"
}-->

<h2 id="introduction">A Quick Guide to Go's Assembler</h2>

<p>
This document is a quick outline of the unusual form of assembly language used by the <code>gc</code> Go compiler.
The document is not comprehensive.
</p>

<p>
The assembler is based on the input style of the Plan 9 assemblers, which is documented in detail

specific language governing permissions and limitations
under the License.
-->
<component xmlns="http://maven.apache.org/ASSEMBLY-COMPONENT/2.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/ASSEMBLY-COMPONENT/2.1.0 http://maven.apache.org/xsd/assembly-component-2.1.0.xsd">
  <dependencySets>
    <dependencySet>
      <useProjectArtifact>false</useProjectArtifact>

        <artifactId>maven-assembly-plugin</artifactId>
        <executions>
          <execution>
            <id>create-distro-packages</id>
            <goals>
              <goal>single</goal>
            </goals>
            <phase>package</phase>
            <configuration>
              <descriptors>
                <descriptor>src/assembly/bin.xml</descriptor>
              </descriptors>

@Deprecated
public interface ArtifactResolver {

    ArtifactResolutionResult resolve(ArtifactResolutionRequest request);

    // The rest is deprecated
    // USED BY MAVEN ASSEMBLY PLUGIN 2.2-beta-2
    @Deprecated
    String ROLE = ArtifactResolver.class.getName();

    // USED BY SUREFIRE, DEPENDENCY PLUGIN
    @Deprecated
    ArtifactResolutionResult resolveTransitively(

			break
		}
	}
	if ok && !*flags.SymABIs {
		ctxt.NumberSyms()
		obj.WriteObjFile(ctxt, buf)
	}
	if !ok || diag {
		if failedFile != "" {
			log.Printf("assembly of %s failed", failedFile)
		} else {
			log.Print("assembly failed")
		}
		buf.Close()
		os.Remove(*flags.OutputFile)
		os.Exit(1)
	}

	var ok bool
	testOut = new(strings.Builder) // The assembler writes test output to this buffer.
	ctxt.Bso = bufio.NewWriter(os.Stdout)
	ctxt.IsAsm = true
	defer ctxt.Bso.Flush()
	failed := false
	ctxt.DiagFunc = func(format string, args ...interface{}) {
		failed = true
		t.Errorf(format, args...)
	}
	pList.Firstpc, ok = parser.Parse()
	if !ok || failed {
		t.Errorf("asm: %s assembly failed", goarch)
		return
	}

+# 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.  */
 # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
 # define _strong_alias(name, aliasname) \

        for (String version : versions) {
            artifactVersions.add(new DefaultArtifactVersion(version));
        }

        return artifactVersions;
    }

    // USED BY MAVEN ASSEMBLY PLUGIN
    @Deprecated
    public static Set<Artifact> createArtifacts(
            ArtifactFactory artifactFactory,
            List<Dependency> dependencies,
            String inheritedScope,

			continue
		}
		p.errorf("unrecognized instruction %q", word)
	}
	if p.errorCount > 0 {
		return nil, false
	}
	p.patch()
	return p.firstProg, true
}

// ParseSymABIs parses p's assembly code to find text symbol
// definitions and references and writes a symabis file to w.
func (p *Parser) ParseSymABIs(w io.Writer) bool {
	operands := make([][]lex.Token, 0, 3)
	for {

  public static final MediaType MEDIA_PRESENTATION_DESCRIPTION =
      createConstant(APPLICATION_TYPE, "dash+xml");

  /**
   * WASM applications. For more information see <a href="https://webassembly.org/">the Web Assembly
   * overview</a>.
   *
   * @since 27.0
   */
  public static final MediaType WASM_APPLICATION = createConstant(APPLICATION_TYPE, "wasm");

  /**
   * NaCl applications. For more information see <a