diff options
Diffstat (limited to 'compiler_wrapper/config.go')
| -rw-r--r-- | compiler_wrapper/config.go | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/compiler_wrapper/config.go b/compiler_wrapper/config.go deleted file mode 100644 index 3720018e..00000000 --- a/compiler_wrapper/config.go +++ /dev/null @@ -1,197 +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 ( - "strconv" -) - -type config struct { - // TODO: Refactor this flag into more generic configuration properties. - isHostWrapper bool - isAndroidWrapper bool - // Whether to use ccache. - useCCache bool - // Flags to add to gcc and clang. - commonFlags []string - // Flags to add to gcc only. - gccFlags []string - // Flags to add to clang only. - clangFlags []string - // Toolchain root path relative to the wrapper binary. - rootRelPath string - // Path of the old wrapper using the toolchain root. - oldWrapperPath string - // Whether to mock out the calls that the old wrapper does. - mockOldWrapperCmds bool - // Directory to store errors that were prevented with -Wno-error. - newWarningsDir string - // Version. Only used for printing via -print-cmd. - version string -} - -// Version can be set via a linker flag. -// Values fills config.version. -var Version = "" - -// UseCCache can be set via a linker flag. -// Value will be passed to strconv.ParseBool. -// E.g. go build -ldflags '-X config.UseCCache=true'. -var UseCCache = "unknown" - -// UseLlvmNext can be set via a linker flag. -// Value will be passed to strconv.ParseBool. -// E.g. go build -ldflags '-X config.UseLlvmNext=true'. -var UseLlvmNext = "unknown" - -// ConfigName can be set via a linker flag. -// Value has to be one of: -// - "cros.hardened" -// - "cros.nonhardened" -var ConfigName = "unknown" - -// Returns the configuration matching the UseCCache and ConfigName. -func getRealConfig() (*config, error) { - useCCache, err := strconv.ParseBool(UseCCache) - if err != nil { - return nil, wrapErrorwithSourceLocf(err, "invalid format for UseCCache") - } - useLlvmNext, err := strconv.ParseBool(UseLlvmNext) - if err != nil { - return nil, wrapErrorwithSourceLocf(err, "invalid format for UseLLvmNext") - } - // FIXME: Remove comparison to old wrapper once the new wrapper has landed. - oldWrapperPath := "" - config, err := getConfig(ConfigName, useCCache, useLlvmNext, oldWrapperPath, Version) - if err != nil { - return nil, err - } - return config, nil -} - -func getConfig(configName string, useCCache bool, useLlvmNext bool, oldWrapperPath string, version string) (*config, error) { - cfg := config{} - switch configName { - case "cros.hardened": - cfg = *crosHardenedConfig - case "cros.nonhardened": - cfg = *crosNonHardenedConfig - case "cros.host": - cfg = *crosHostConfig - case "android": - cfg = *androidConfig - default: - return nil, newErrorwithSourceLocf("unknown config name: %s", configName) - } - cfg.useCCache = useCCache - if useLlvmNext { - cfg.clangFlags = append(cfg.clangFlags, llvmNextFlags...) - } - cfg.oldWrapperPath = oldWrapperPath - cfg.version = version - return &cfg, nil -} - -var llvmNextFlags = []string{ - "-Wno-reorder-init-list", - "-Wno-final-dtor-non-final-class", - "-Wno-implicit-int-float-conversion", - "-Wno-return-stack-address", - "-Werror=poison-system-directories", -} - -// Full hardening. -// Temporarily disable function splitting because of chromium:434751. -var crosHardenedConfig = &config{ - rootRelPath: "../../../../..", - commonFlags: []string{ - "-fstack-protector-strong", - "-fPIE", - "-pie", - "-D_FORTIFY_SOURCE=2", - "-fno-omit-frame-pointer", - }, - gccFlags: []string{ - "-fno-reorder-blocks-and-partition", - "-Wno-unused-local-typedefs", - "-Wno-maybe-uninitialized", - }, - // Temporarily disable tautological-*-compare chromium:778316. - // Temporarily add no-unknown-warning-option to deal with old clang versions. - // Temporarily disable Wsection since kernel gets a bunch of these. chromium:778867 - // Disable "-faddrsig" since it produces object files that strip doesn't understand, chromium:915742. - clangFlags: []string{ - "-Qunused-arguments", - "-grecord-gcc-switches", - "-fno-addrsig", - "-Wno-tautological-constant-compare", - "-Wno-tautological-unsigned-enum-zero-compare", - "-Wno-unknown-warning-option", - "-Wno-section", - "-static-libgcc", - "-fuse-ld=lld", - }, - newWarningsDir: "/tmp/fatal_clang_warnings", -} - -// Flags to be added to non-hardened toolchain. -var crosNonHardenedConfig = &config{ - rootRelPath: "../../../../..", - commonFlags: []string{}, - gccFlags: []string{ - "-Wno-maybe-uninitialized", - "-Wno-unused-local-typedefs", - "-Wno-deprecated-declarations", - "-Wtrampolines", - }, - // Temporarily disable tautological-*-compare chromium:778316. - // Temporarily add no-unknown-warning-option to deal with old clang versions. - // Temporarily disable Wsection since kernel gets a bunch of these. chromium:778867 - clangFlags: []string{ - "-Qunused-arguments", - "-Wno-tautological-constant-compare", - "-Wno-tautological-unsigned-enum-zero-compare", - "-Wno-unknown-warning-option", - "-Wno-section", - "-static-libgcc", - }, - newWarningsDir: "/tmp/fatal_clang_warnings", -} - -// Flags to be added to host toolchain. -var crosHostConfig = &config{ - isHostWrapper: true, - rootRelPath: "../..", - commonFlags: []string{}, - gccFlags: []string{ - "-Wno-maybe-uninitialized", - "-Wno-unused-local-typedefs", - "-Wno-deprecated-declarations", - }, - // Temporarily disable tautological-*-compare chromium:778316. - // Temporarily add no-unknown-warning-option to deal with old clang versions. - clangFlags: []string{ - "-Qunused-arguments", - "-grecord-gcc-switches", - "-fno-addrsig", - "-fuse-ld=lld", - "-Wno-unused-local-typedefs", - "-Wno-deprecated-declarations", - "-Wno-tautological-constant-compare", - "-Wno-tautological-unsigned-enum-zero-compare", - "-Wno-unknown-warning-option", - }, - newWarningsDir: "/tmp/fatal_clang_warnings", -} - -var androidConfig = &config{ - isHostWrapper: false, - isAndroidWrapper: true, - rootRelPath: "./", - commonFlags: []string{}, - gccFlags: []string{}, - clangFlags: []string{}, - newWarningsDir: "/tmp/fatal_clang_warnings", -} |