1 files changed, 0 insertions, 105 deletions
diff --git a/compiler_wrapper/compile_with_fallback.go b/compiler_wrapper/compile_with_fallback.go
deleted file mode 100644
index a3b00bf1..00000000
--- a/compiler_wrapper/compile_with_fallback.go
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2019 The Chromium OS Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-	"syscall"
-	"time"
-)
-
-const prebuiltCompilerPathKey = "ANDROID_LLVM_PREBUILT_COMPILER_PATH"
-
-func shouldCompileWithFallback(env env) bool {
-	value, _ := env.getenv(prebuiltCompilerPathKey)
-	return value != ""
-}
-
-// FIXME: Deduplicate this logic with the logic for FORCE_DISABLE_WERROR
-// (the logic here is from Android, the logic for FORCE_DISABLE_WERROR is from ChromeOS)
-func compileWithFallback(env env, cfg *config, originalCmd *command, absWrapperPath string) (exitCode int, err error) {
-	firstCmd := &command{
-		Path:       originalCmd.Path,
-		Args:       originalCmd.Args,
-		EnvUpdates: originalCmd.EnvUpdates,
-	}
-	// We only want to pass extra flags to clang and clang++.
-	if base := filepath.Base(originalCmd.Path); base == "clang.real" || base == "clang++.real" {
-		// We may introduce some new warnings after rebasing and we need to
-		// disable them before we fix those warnings.
-		extraArgs, _ := env.getenv("ANDROID_LLVM_FALLBACK_DISABLED_WARNINGS")
-		firstCmd.Args = append(
-			append(firstCmd.Args, "-fno-color-diagnostics"),
-			strings.Split(extraArgs, " ")...,
-		)
-	}
-
-	firstCmdStdinBuffer := &bytes.Buffer{}
-	firstCmdStderrBuffer := &bytes.Buffer{}
-	firstCmdExitCode, err := wrapSubprocessErrorWithSourceLoc(firstCmd,
-		env.run(firstCmd, teeStdinIfNeeded(env, firstCmd, firstCmdStdinBuffer), env.stdout(), io.MultiWriter(env.stderr(), firstCmdStderrBuffer)))
-	if err != nil {
-		return 0, err
-	}
-
-	if firstCmdExitCode == 0 {
-		return 0, nil
-	}
-	stderrRedirectPath, _ := env.getenv("ANDROID_LLVM_STDERR_REDIRECT")
-	f, err := os.OpenFile(stderrRedirectPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
-	if err != nil {
-		return 0, wrapErrorwithSourceLocf(err, "error opening stderr file %s", stderrRedirectPath)
-	}
-	lockSuccess := false
-	for i := 0; i < 30; i++ {
-		err := syscall.Flock(int(f.Fd()), syscall.LOCK_EX|syscall.LOCK_NB)
-		if err == nil {
-			lockSuccess = true
-			break
-		}
-		if errno, ok := err.(syscall.Errno); ok {
-			if errno == syscall.EAGAIN || errno == syscall.EACCES {
-				time.Sleep(500 * time.Millisecond)
-				err = nil
-			}
-		}
-		if err != nil {
-			return 0, wrapErrorwithSourceLocf(err, "error waiting to lock file %s", stderrRedirectPath)
-		}
-	}
-	if !lockSuccess {
-		return 0, wrapErrorwithSourceLocf(err, "timeout waiting to lock file %s", stderrRedirectPath)
-	}
-	w := bufio.NewWriter(f)
-	w.WriteString("==================COMMAND:====================\n")
-	fmt.Fprintf(w, "%s %s\n\n", firstCmd.Path, strings.Join(firstCmd.Args, " "))
-	firstCmdStderrBuffer.WriteTo(w)
-	w.WriteString("==============================================\n\n")
-	if err := w.Flush(); err != nil {
-		return 0, wrapErrorwithSourceLocf(err, "unable to write to file %s", stderrRedirectPath)
-	}
-	if err := f.Close(); err != nil {
-		return 0, wrapErrorwithSourceLocf(err, "error closing file %s", stderrRedirectPath)
-	}
-
-	prebuiltCompilerPath, _ := env.getenv(prebuiltCompilerPathKey)
-	fallbackCmd := &command{
-		Path: filepath.Join(prebuiltCompilerPath, filepath.Base(absWrapperPath)),
-		// Don't use extra args added (from ANDROID_LLVM_FALLBACK_DISABLED_WARNINGS) for clang and
-		// clang++ above.  They may not be recognized by the fallback clang.
-		Args: originalCmd.Args,
-		// Delete prebuiltCompilerPathKey so the fallback doesn't keep
-		// calling itself in case of an error.
-		EnvUpdates: append(originalCmd.EnvUpdates, prebuiltCompilerPathKey+"="),
-	}
-	return wrapSubprocessErrorWithSourceLoc(fallbackCmd,
-		env.run(fallbackCmd, bytes.NewReader(firstCmdStdinBuffer.Bytes()), env.stdout(), env.stderr()))
-}