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From cba2fccce163bc549db529c5d6783478de908325 Mon Sep 17 00:00:00 2001
From: Mike Gilbert <floppym@gentoo.org>
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
|