From cba2fccce163bc549db529c5d6783478de908325 Mon Sep 17 00:00:00 2001 From: Mike Gilbert Date: Wed, 25 Apr 2018 13:22:49 -0400 Subject: [PATCH] Disable various compiler configs --- build/config/compiler/BUILD.gn | 68 +++++++++------------------------- 1 file changed, 18 insertions(+), 50 deletions(-) diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn index 2d82ed5b4e23..23632b156900 100644 --- a/build/config/compiler/BUILD.gn +++ b/build/config/compiler/BUILD.gn @@ -225,8 +225,6 @@ config("compiler") { configs += [ # See the definitions below. - ":clang_revision", - ":compiler_cpu_abi", ":compiler_codegen", ] @@ -488,18 +486,6 @@ config("compiler") { } } - if (is_clang && !is_nacl && current_toolchain == host_toolchain && - target_os != "chromeos") { - cflags += [ - # TODO(hans): Remove this once Clang generates better optimized debug info - # by default. https://crbug.com/765793 - "-Xclang", - "-mllvm", - "-Xclang", - "-instcombine-lower-dbg-declare=0", - ] - } - # Print absolute paths in diagnostics. There is no precedent for doing this # on Linux/Mac (GCC doesn't support it), but MSVC does this with /FC and # Windows developers rely on it (crbug.com/636109) so only do this on Windows. @@ -672,13 +658,6 @@ config("compiler") { ldflags += [ "-Wl,--no-rosegment" ] } - # This flag enforces that member pointer base types are complete. It helps - # prevent us from running into problems in the Microsoft C++ ABI (see - # https://crbug.com/847724). - if (is_clang && !is_nacl && target_os != "chromeos" && !use_xcode_clang) { - cflags += [ "-fcomplete-member-pointers" ] - } - # Pass the same C/C++ flags to the objective C/C++ compiler. cflags_objc += cflags_c cflags_objcc += cflags_cc @@ -1467,10 +1446,6 @@ config("default_warnings") { cflags += [ # TODO(thakis): https://crbug.com/753973 "-Wno-enum-compare-switch", - - # Ignore warnings about MSVC optimization pragmas. - # TODO(thakis): Only for no_chromium_code? http://crbug.com/505314 - "-Wno-ignored-pragma-optimize", ] } } @@ -1512,22 +1487,6 @@ config("chromium_code") { "__STDC_FORMAT_MACROS", ] - if (!is_debug && !using_sanitizer && - (!is_linux || !is_clang || is_official_build) && - current_cpu != "s390x" && current_cpu != "s390" && - current_cpu != "ppc64" && current_cpu != "ppc64" && - current_cpu != "mips" && current_cpu != "mips64") { - # _FORTIFY_SOURCE isn't really supported by Clang now, see - # http://llvm.org/bugs/show_bug.cgi?id=16821. - # It seems to work fine with Ubuntu 12 headers though, so use it in - # official builds. - # - # Non-chromium code is not guaranteed to compile cleanly with - # _FORTIFY_SOURCE. Also, fortified build may fail when optimizations are - # disabled, so only do that for Release build. - defines += [ "_FORTIFY_SOURCE=2" ] - } - if (is_mac || is_ios) { cflags_objc = [ "-Wobjc-missing-property-synthesis" ] cflags_objcc = [ "-Wobjc-missing-property-synthesis" ] @@ -1857,7 +1816,8 @@ config("default_stack_frames") { } # Default "optimization on" config. -config("optimize") { +config("optimize") { } +config("xoptimize") { if (is_win) { # TODO(thakis): Remove is_clang here, https://crbug.com/598772 if (is_official_build && full_wpo_on_official && !is_clang) { @@ -1891,7 +1851,8 @@ config("optimize") { } # Same config as 'optimize' but without the WPO flag. -config("optimize_no_wpo") { +config("optimize_no_wpo") { } +config("xoptimize_no_wpo") { if (is_win) { # Favor size over speed, /O1 must be before the common flags. The GYP # build also specifies /Os and /GF but these are implied by /O1. @@ -1914,7 +1875,8 @@ config("optimize_no_wpo") { } # Turn off optimizations. -config("no_optimize") { +config("no_optimize") { } +config("xno_optimize") { if (is_win) { cflags = [ "/Od", # Disable optimization. @@ -1938,7 +1900,8 @@ config("no_optimize") { # Turns up the optimization level. On Windows, this implies whole program # optimization and link-time code generation which is very expensive and should # be used sparingly. -config("optimize_max") { +config("optimize_max") { } +config("xoptimize_max") { if (is_nacl && is_nacl_irt) { # The NaCl IRT is a special case and always wants its own config. # Various components do: @@ -1985,7 +1948,8 @@ config("optimize_max") { # # TODO(crbug.com/621335) - rework how all of these configs are related # so that we don't need this disclaimer. -config("optimize_speed") { +config("optimize_speed") { } +config("xoptimize_speed") { if (is_nacl && is_nacl_irt) { # The NaCl IRT is a special case and always wants its own config. # Various components do: @@ -2023,7 +1987,8 @@ config("optimize_speed") { } } -config("optimize_fuzzing") { +config("optimize_fuzzing") { } +config("xoptimize_fuzzing") { cflags = [ "-O1" ] + common_optimize_on_cflags ldflags = common_optimize_on_ldflags visibility = [ ":default_optimization" ] @@ -2109,7 +2074,8 @@ config("afdo") { # configs += [ "//build/config/compiler:symbols" ] # Full symbols. -config("symbols") { +config("symbols") { } +config("xsymbols") { if (is_win) { if (use_goma || is_clang) { # Note that with VC++ this requires is_win_fastlink, enforced elsewhere. @@ -2207,7 +2173,8 @@ config("symbols") { # Minimal symbols. # This config guarantees to hold symbol for stack trace which are shown to user # when crash happens in unittests running on buildbot. -config("minimal_symbols") { +config("minimal_symbols") { } +config("xminimal_symbols") { if (is_win) { # Linker symbols for backtraces only. cflags = [] @@ -2238,7 +2205,8 @@ config("minimal_symbols") { } # No symbols. -config("no_symbols") { +config("no_symbols") { } +config("xno_symbols") { if (!is_win) { cflags = [ "-g0" ] asmflags = cflags -- 2.18.0.rc2