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Merge "Introduce LTO property for -fwhole-program-vtables cflag" am: 52cebe5aff am: 6b8931ce48 am: 50dfc16e17 am: 380f24b73e

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Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1429862

Change-Id: Ib682a898201c8804f633117e22ec023584b9725f
This commit is contained in:
Yi Kong
2020-09-21 19:02:53 +00:00
committed by Automerger Merge Worker
parent 6fef26413b 380f24b73e
commit e1eee5fd54
1 changed files with 7 additions and 0 deletions
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7
cc/lto.go
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@@ -52,6 +52,9 @@ type LTOProperties struct {
// Use clang lld instead of gnu ld.
Use_clang_lld *bool
// Use -fwhole-program-vtables cflag.
Whole_program_vtables *bool
}
type lto struct {
@@ -97,6 +100,10 @@ func (lto *lto) flags(ctx BaseModuleContext, flags Flags) Flags {
flags.Local.CFlags = append(flags.Local.CFlags, ltoFlag)
flags.Local.LdFlags = append(flags.Local.LdFlags, ltoFlag)
if Bool(lto.Properties.Whole_program_vtables) {
flags.Local.CFlags = append(flags.Local.CFlags, "-fwhole-program-vtables")
}
if ctx.Config().IsEnvTrue("USE_THINLTO_CACHE") && Bool(lto.Properties.Lto.Thin) && lto.useClangLld(ctx) {
// Set appropriate ThinLTO cache policy
cacheDirFormat := "-Wl,--thinlto-cache-dir="