diff options
Diffstat (limited to 'rust/compiler.go')
| -rw-r--r-- | rust/compiler.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/rust/compiler.go b/rust/compiler.go index 5033fbac2..efc3deef3 100644 --- a/rust/compiler.go +++ b/rust/compiler.go @@ -47,6 +47,7 @@ type compiler interface { edition() string features() []string rustdoc(ctx ModuleContext, flags Flags, deps PathDeps) android.OptionalPath + Thinlto() bool // Output directory in which source-generated code from dependencies is // copied. This is equivalent to Cargo's OUT_DIR variable. @@ -231,6 +232,15 @@ type BaseCompilerProperties struct { // If cargo_env_compat is true, sets the CARGO_PKG_VERSION env var to this value. Cargo_pkg_version *string + + // Control whether LTO is used for the final (Rust) linkage. This does not impact + // cross-language LTO. + Lto struct { + // Whether thin LTO should be enabled. By default this is true. + // LTO provides such a large code size benefit for Rust, this should always + // be enabled for production builds unless there's a clear need to disable it. + Thin *bool `android:"arch_variant"` + } `android:"arch_variant"` } type baseCompiler struct { @@ -273,6 +283,11 @@ func (compiler *baseCompiler) Disabled() bool { return false } +// Thin LTO is enabled by default. +func (compiler *baseCompiler) Thinlto() bool { + return BoolDefault(compiler.Properties.Lto.Thin, true) +} + func (compiler *baseCompiler) SetDisabled() { panic("baseCompiler does not implement SetDisabled()") } |