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| author | Chih-Hung Hsieh <chh@google.com> | 2018-04-03 11:33:34 -0700 |
|---|---|---|
| committer | Chih-Hung Hsieh <chh@google.com> | 2018-04-12 14:37:35 -0700 |
| commit | 02b4da53a76b4ba18e3e14588826d7af45ccd6b5 (patch) | |
| tree | 8e8611f2c424d3db7685e7ad831498c48b63c330 /cc/config/global.go | |
| parent | 18f568f651fdc7fb17f620aab005ae3af882c199 (diff) | |
| download | build_soong-02b4da53a76b4ba18e3e14588826d7af45ccd6b5.tar.gz build_soong-02b4da53a76b4ba18e3e14588826d7af45ccd6b5.tar.bz2 build_soong-02b4da53a76b4ba18e3e14588826d7af45ccd6b5.zip | |
Add USE_CLANG_LLD and use_clang_lld.android-o-mr1-iot-preview-8
* USE_CLANG_LLD is unedefined in current builds.
* When USE_CLANG_LLD is defined to 'true' or '1',
use clang's lld instead of ld or ld.gold.
* When lld is enabled:
* ld-only flags are not passed to 'lld'.
* location_packer is disabled.
* Use new lld's --pack-dyn-relocs=android.
* When lld does not work:
* In Android.mk files use LOCAL_USE_CLANG_LLD := false.
* In Android.bp files use use_clang_lld: false.
* Only arm, arm64, x86, and x86_64_devices have LLD flags;
all other hosts and targets do not call lld yet.
Bug: 73768157
Test: make checkbuild and boot
Change-Id: I06b8a1e868a600997a7e70fe05c299d751d23d5f
Diffstat (limited to 'cc/config/global.go')
| -rw-r--r-- | cc/config/global.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cc/config/global.go b/cc/config/global.go index 989c7ee0..051eba54 100644 --- a/cc/config/global.go +++ b/cc/config/global.go @@ -87,12 +87,20 @@ var ( "-Wl,--no-undefined-version", } + deviceGlobalLldflags = append(ClangFilterUnknownLldflags(deviceGlobalLdflags), + []string{ + "-Wl,--pack-dyn-relocs=android", + "-fuse-ld=lld", + }...) + hostGlobalCflags = []string{} hostGlobalCppflags = []string{} hostGlobalLdflags = []string{} + hostGlobalLldflags = []string{} + commonGlobalCppflags = []string{ "-Wsign-promo", } @@ -141,9 +149,11 @@ func init() { pctx.StaticVariable("DeviceGlobalCflags", strings.Join(deviceGlobalCflags, " ")) pctx.StaticVariable("DeviceGlobalCppflags", strings.Join(deviceGlobalCppflags, " ")) pctx.StaticVariable("DeviceGlobalLdflags", strings.Join(deviceGlobalLdflags, " ")) + pctx.StaticVariable("DeviceGlobalLldflags", strings.Join(deviceGlobalLldflags, " ")) pctx.StaticVariable("HostGlobalCflags", strings.Join(hostGlobalCflags, " ")) pctx.StaticVariable("HostGlobalCppflags", strings.Join(hostGlobalCppflags, " ")) pctx.StaticVariable("HostGlobalLdflags", strings.Join(hostGlobalLdflags, " ")) + pctx.StaticVariable("HostGlobalLldflags", strings.Join(hostGlobalLldflags, " ")) pctx.StaticVariable("NoOverrideGlobalCflags", strings.Join(noOverrideGlobalCflags, " ")) pctx.StaticVariable("CommonGlobalCppflags", strings.Join(commonGlobalCppflags, " ")) |