misc fixes

pkg/proc/dump.go

@@ -136,6 +136,8 @@ func (t *Target) Dump(out elfwriter.WriteCloserSeeker, flags DumpFlags, state *D
 		fhdr.Machine = elf.EM_386
 	case "arm64":
 		fhdr.Machine = elf.EM_AARCH64
+	case "ppc64le":
+		fhdr.Machine = elf.EM_PPC64
 	default:
 		panic("not implemented")
 	}

pkg/proc/proc_test.go

@@ -3807,7 +3807,8 @@ func TestHaltKeepsSteppingBreakpoints(t *testing.T) {
 }
 
 func TestDisassembleGlobalVars(t *testing.T) {
-	skipOn(t, "broken - global variable symbolication", "arm64") // On ARM64 symLookup can't look up variables due to how they are loaded, see issue #1778
+	skipOn(t, "broken - global variable symbolication", "arm64")   // On ARM64 symLookup can't look up variables due to how they are loaded, see issue #1778
+	skipOn(t, "broken - global variable symbolication", "ppc64le") // See comment on ARM64 above.
 	// On 386 linux when pie, the genered code use __x86.get_pc_thunk to ensure position-independent.
 	// Locate global variable by
 	//    `CALL __x86.get_pc_thunk.ax(SB) 0xb0f7f

pkg/proc/test/support.go

@@ -337,7 +337,7 @@ func MustSupportFunctionCalls(t *testing.T, testBackend string) {
 	if runtime.GOOS == "darwin" && os.Getenv("TRAVIS") == "true" && runtime.GOARCH == "amd64" {
 		t.Skip("function call injection tests are failing on macOS on Travis-CI (see #1802)")
 	}
-	if runtime.GOARCH == "386" {
+	if runtime.GOARCH == "386" || runtime.GOARCH == "ppc64le" {
 		t.Skip(fmt.Errorf("%s does not support FunctionCall for now", runtime.GOARCH))
 	}
 	if runtime.GOARCH == "arm64" {