mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-12-08 23:03:46 +00:00
103 lines
4.7 KiB
Diff
103 lines
4.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
|
|
Date: Tue, 17 Nov 2020 22:45:47 +0100
|
|
Subject: [PATCH] Fixes for LTO+PGO support
|
|
|
|
Cherry-picked from Firefox Nightly.
|
|
---
|
|
build/moz.configure/lto-pgo.configure | 7 +++++--
|
|
config/makefiles/rust.mk | 21 +++++++++++++++++----
|
|
2 files changed, 22 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/build/moz.configure/lto-pgo.configure b/build/moz.configure/lto-pgo.configure
|
|
index 366c6691f7d11..e5342a037ee92 100644
|
|
--- a/build/moz.configure/lto-pgo.configure
|
|
+++ b/build/moz.configure/lto-pgo.configure
|
|
@@ -229,7 +229,10 @@ def lto(value, c_compiler, ld64_known_good, target, instrumented_build):
|
|
# instruction sets.
|
|
else:
|
|
num_cores = multiprocessing.cpu_count()
|
|
- cflags.append("-flto")
|
|
+ if len(value) and value[0].lower() == 'full':
|
|
+ cflags.append("-flto")
|
|
+ else:
|
|
+ cflags.append("-flto=thin")
|
|
cflags.append("-flifetime-dse=1")
|
|
|
|
ldflags.append("-flto=%s" % num_cores)
|
|
@@ -258,6 +261,6 @@ set_config('MOZ_LTO', lto.enabled)
|
|
set_define('MOZ_LTO', lto.enabled)
|
|
set_config('MOZ_LTO_CFLAGS', lto.cflags)
|
|
set_config('MOZ_LTO_LDFLAGS', lto.ldflags)
|
|
-set_config('MOZ_LTO_RUST', lto.rust_lto)
|
|
+set_config('MOZ_LTO_RUST_CROSS', lto.rust_lto)
|
|
add_old_configure_assignment('MOZ_LTO_CFLAGS', lto.cflags)
|
|
add_old_configure_assignment('MOZ_LTO_LDFLAGS', lto.ldflags)
|
|
diff --git a/config/makefiles/rust.mk b/config/makefiles/rust.mk
|
|
index b5c7973104ceb..079408b358edb 100644
|
|
--- a/config/makefiles/rust.mk
|
|
+++ b/config/makefiles/rust.mk
|
|
@@ -59,17 +59,19 @@ cargo_rustc_flags = $(CARGO_RUSTCFLAGS)
|
|
ifndef DEVELOPER_OPTIONS
|
|
ifndef MOZ_DEBUG_RUST
|
|
# Enable link-time optimization for release builds, but not when linking
|
|
-# gkrust_gtest.
|
|
+# gkrust_gtest. And not when doing cross-language LTO.
|
|
+ifndef MOZ_LTO_RUST_CROSS
|
|
ifeq (,$(findstring gkrust_gtest,$(RUST_LIBRARY_FILE)))
|
|
cargo_rustc_flags += -Clto
|
|
endif
|
|
# Versions of rust >= 1.45 need -Cembed-bitcode=yes for all crates when
|
|
# using -Clto.
|
|
ifeq (,$(filter 1.38.% 1.39.% 1.40.% 1.41.% 1.42.% 1.43.% 1.44.%,$(RUSTC_VERSION)))
|
|
RUSTFLAGS += -Cembed-bitcode=yes
|
|
endif
|
|
endif
|
|
endif
|
|
+endif
|
|
|
|
ifdef CARGO_INCREMENTAL
|
|
export CARGO_INCREMENTAL
|
|
@@ -185,10 +187,19 @@ target_rust_ltoable := force-cargo-library-build
|
|
target_rust_nonltoable := force-cargo-test-run force-cargo-library-check $(foreach b,build check,force-cargo-program-$(b))
|
|
|
|
ifdef MOZ_PGO_RUST
|
|
-rust_pgo_flags := $(if $(MOZ_PROFILE_GENERATE),-C profile-generate=$(topobjdir)) $(if $(MOZ_PROFILE_USE),-C profile-use=$(PGO_PROFILE_PATH))
|
|
+ifdef MOZ_PROFILE_GENERATE
|
|
+rust_pgo_flags := -C profile-generate=$(topobjdir)
|
|
+# The C compiler may be passed extra llvm flags for PGO that we also want to pass to rust as well.
|
|
+# In PROFILE_GEN_CFLAGS, they look like "-mllvm foo", and we want "-C llvm-args=foo", so first turn
|
|
+# "-mllvm foo" into "-mllvm:foo" so that it becomes a unique argument, that we can then filter for,
|
|
+# excluding other flags, and then turn into the right string.
|
|
+rust_pgo_flags += $(patsubst -mllvm:%,-C llvm-args=%,$(filter -mllvm:%,$(subst -mllvm ,-mllvm:,$(PROFILE_GEN_CFLAGS))))
|
|
+else # MOZ_PROFILE_USE
|
|
+rust_pgo_flags := -C profile-use=$(PGO_PROFILE_PATH)
|
|
+endif
|
|
endif
|
|
|
|
-$(target_rust_ltoable): RUSTFLAGS:=$(rustflags_override) $(rustflags_sancov) $(RUSTFLAGS) $(if $(MOZ_LTO_RUST),-Clinker-plugin-lto) $(rust_pgo_flags)
|
|
+$(target_rust_ltoable): RUSTFLAGS:=$(rustflags_override) $(rustflags_sancov) $(RUSTFLAGS) $(if $(MOZ_LTO_RUST_CROSS),-Clinker-plugin-lto) $(rust_pgo_flags)
|
|
$(target_rust_nonltoable): RUSTFLAGS:=$(rustflags_override) $(rustflags_sancov) $(RUSTFLAGS)
|
|
|
|
TARGET_RECIPES := $(target_rust_ltoable) $(target_rust_nonltoable)
|
|
@@ -302,17 +313,19 @@ $(RUST_LIBRARY_FILE): force-cargo-library-build
|
|
# When we are building in --enable-release mode; we add an additional check to confirm
|
|
# that we are not importing any networking-related functions in rust code. This reduces
|
|
# the chance of proxy bypasses originating from rust code.
|
|
-# The check only works when rust code is built with -Clto.
|
|
+# The check only works when rust code is built with -Clto but without MOZ_LTO_RUST_CROSS.
|
|
# Sanitizers and sancov also fail because compiler-rt hooks network functions.
|
|
ifndef MOZ_PROFILE_GENERATE
|
|
ifeq ($(OS_ARCH), Linux)
|
|
ifeq (,$(rustflags_sancov)$(MOZ_ASAN)$(MOZ_TSAN)$(MOZ_UBSAN))
|
|
+ifndef MOZ_LTO_RUST_CROSS
|
|
ifneq (,$(filter -Clto,$(cargo_rustc_flags)))
|
|
$(call py_action,check_binary,--target --networking $@)
|
|
endif
|
|
endif
|
|
endif
|
|
endif
|
|
+endif
|
|
|
|
force-cargo-library-check:
|
|
$(call CARGO_CHECK) --lib $(cargo_target_flag) $(rust_features_flag)
|