diff --git build/config/compiler/BUILD.gn build/config/compiler/BUILD.gn index f1627512b3212..b9bdd63daae7d 100644 --- build/config/compiler/BUILD.gn +++ build/config/compiler/BUILD.gn @@ -133,6 +133,9 @@ declare_args() { # The cache can lead to non-determinism: https://crbug.com/1486045 thin_lto_enable_cache = true + # Whether to use thin archives in combination with lld. + use_thin_archives = use_lld + # Initialize all local variables with a pattern. This flag will fill # uninitialized floating-point types (and 32-bit pointers) with 0xFF and the # rest with 0xAA. This makes behavior of uninitialized memory bugs consistent, @@ -2268,11 +2271,13 @@ config("export_dynamic") { config("thin_archive") { # The macOS and iOS default linker ld64 does not support reading thin # archives. + if (use_thin_archives) { if ((is_posix && !is_nacl && (!is_apple || use_lld)) || is_fuchsia) { arflags = [ "-T" ] } else if (is_win && use_lld) { arflags = [ "/llvmlibthin" ] } + } } # exceptions -------------------------------------------------------------------