blob: d25239ae6f849ea320cb44f72ea7c734c7883cd6 [file] [log] [blame]
# Copyright (c) 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/buildflag_header.gni")
import("//build/config/allocator.gni")
import("//build/config/compiler/compiler.gni")
declare_args() {
# Provide a way to force disable debugallocation in Debug builds,
# e.g. for profiling (it's more rare to profile Debug builds,
# but people sometimes need to do that).
enable_debugallocation = is_debug
}
# Allocator shim is only enabled for Release static builds.
win_use_allocator_shim = is_win && !is_component_build && !is_debug
# This "allocator" meta-target will forward to the default allocator according
# to the build settings.
group("allocator") {
public_deps = []
deps = []
if (use_allocator == "tcmalloc") {
deps += [ ":tcmalloc" ]
}
if (win_use_allocator_shim) {
public_deps += [ ":allocator_shim" ]
}
}
# This config defines ALLOCATOR_SHIM in the same conditions that the allocator
# shim will be used by the allocator target.
#
# TODO(brettw) this is only used in one place and is kind of mess, because it
# assumes that the library using it will eventually be linked with
# //base/allocator in the default way. Clean this up and delete this.
config("allocator_shim_define") {
if (win_use_allocator_shim) {
defines = [ "ALLOCATOR_SHIM" ]
}
}
config("tcmalloc_flags") {
defines = []
if (enable_debugallocation) {
defines += [
# Use debugallocation for Debug builds to catch problems early
# and cleanly, http://crbug.com/30715 .
"TCMALLOC_FOR_DEBUGALLOCATION",
]
}
if (use_experimental_allocator_shim) {
defines += [ "TCMALLOC_DONT_REPLACE_SYSTEM_ALLOC" ]
}
if (is_clang) {
cflags = [
# tcmalloc initializes some fields in the wrong order.
"-Wno-reorder",
# tcmalloc contains some unused local template specializations.
"-Wno-unused-function",
# tcmalloc uses COMPILE_ASSERT without static_assert but with
# typedefs.
"-Wno-unused-local-typedefs",
# for magic2_ in debugallocation.cc (only built in Debug builds)
# typedefs.
"-Wno-unused-private-field",
]
}
}
# This config is only used on Windows static release builds for the
# allocator shim.
if (win_use_allocator_shim) {
source_set("allocator_shim") {
sources = [
"allocator_shim_win.cc",
"allocator_shim_win.h",
]
configs += [ ":allocator_shim_define" ]
}
}
if (use_allocator == "tcmalloc") {
# tcmalloc currently won't compile on Android.
source_set("tcmalloc") {
tcmalloc_dir = "//third_party/tcmalloc/chromium"
# Don't check tcmalloc's includes. These files include various files like
# base/foo.h and they actually refer to tcmalloc's forked copy of base
# rather than the regular one, which confuses the header checker.
check_includes = false
sources = [
# Generated for our configuration from tcmalloc's build
# and checked in.
"$tcmalloc_dir/src/config.h",
"$tcmalloc_dir/src/config_android.h",
"$tcmalloc_dir/src/config_linux.h",
"$tcmalloc_dir/src/config_win.h",
# tcmalloc native and forked files.
"$tcmalloc_dir/src/base/abort.cc",
"$tcmalloc_dir/src/base/abort.h",
"$tcmalloc_dir/src/base/arm_instruction_set_select.h",
"$tcmalloc_dir/src/base/atomicops-internals-arm-generic.h",
"$tcmalloc_dir/src/base/atomicops-internals-arm-v6plus.h",
"$tcmalloc_dir/src/base/atomicops-internals-linuxppc.h",
"$tcmalloc_dir/src/base/atomicops-internals-macosx.h",
"$tcmalloc_dir/src/base/atomicops-internals-windows.h",
"$tcmalloc_dir/src/base/atomicops-internals-x86.cc",
"$tcmalloc_dir/src/base/atomicops-internals-x86.h",
"$tcmalloc_dir/src/base/atomicops.h",
"$tcmalloc_dir/src/base/commandlineflags.h",
"$tcmalloc_dir/src/base/cycleclock.h",
# We don't list dynamic_annotations.c since its copy is already
# present in the dynamic_annotations target.
"$tcmalloc_dir/src/base/elf_mem_image.cc",
"$tcmalloc_dir/src/base/elf_mem_image.h",
"$tcmalloc_dir/src/base/linuxthreads.cc",
"$tcmalloc_dir/src/base/linuxthreads.h",
"$tcmalloc_dir/src/base/logging.cc",
"$tcmalloc_dir/src/base/logging.h",
"$tcmalloc_dir/src/base/low_level_alloc.cc",
"$tcmalloc_dir/src/base/low_level_alloc.h",
"$tcmalloc_dir/src/base/spinlock.cc",
"$tcmalloc_dir/src/base/spinlock.h",
"$tcmalloc_dir/src/base/spinlock_internal.cc",
"$tcmalloc_dir/src/base/spinlock_internal.h",
"$tcmalloc_dir/src/base/synchronization_profiling.h",
"$tcmalloc_dir/src/base/sysinfo.cc",
"$tcmalloc_dir/src/base/sysinfo.h",
"$tcmalloc_dir/src/base/vdso_support.cc",
"$tcmalloc_dir/src/base/vdso_support.h",
"$tcmalloc_dir/src/central_freelist.cc",
"$tcmalloc_dir/src/central_freelist.h",
"$tcmalloc_dir/src/common.cc",
"$tcmalloc_dir/src/common.h",
# #included by debugallocation_shim.cc
#"$tcmalloc_dir/src/debugallocation.cc",
"$tcmalloc_dir/src/free_list.cc",
"$tcmalloc_dir/src/free_list.h",
"$tcmalloc_dir/src/heap-profile-table.cc",
"$tcmalloc_dir/src/heap-profile-table.h",
"$tcmalloc_dir/src/heap-profiler.cc",
"$tcmalloc_dir/src/internal_logging.cc",
"$tcmalloc_dir/src/internal_logging.h",
"$tcmalloc_dir/src/linked_list.h",
"$tcmalloc_dir/src/malloc_extension.cc",
"$tcmalloc_dir/src/malloc_hook-inl.h",
"$tcmalloc_dir/src/malloc_hook.cc",
"$tcmalloc_dir/src/maybe_threads.cc",
"$tcmalloc_dir/src/maybe_threads.h",
"$tcmalloc_dir/src/memory_region_map.cc",
"$tcmalloc_dir/src/memory_region_map.h",
"$tcmalloc_dir/src/page_heap.cc",
"$tcmalloc_dir/src/page_heap.h",
"$tcmalloc_dir/src/raw_printer.cc",
"$tcmalloc_dir/src/raw_printer.h",
"$tcmalloc_dir/src/sampler.cc",
"$tcmalloc_dir/src/sampler.h",
"$tcmalloc_dir/src/span.cc",
"$tcmalloc_dir/src/span.h",
"$tcmalloc_dir/src/stack_trace_table.cc",
"$tcmalloc_dir/src/stack_trace_table.h",
"$tcmalloc_dir/src/stacktrace.cc",
"$tcmalloc_dir/src/static_vars.cc",
"$tcmalloc_dir/src/static_vars.h",
"$tcmalloc_dir/src/symbolize.cc",
"$tcmalloc_dir/src/symbolize.h",
"$tcmalloc_dir/src/system-alloc.cc",
"$tcmalloc_dir/src/system-alloc.h",
# #included by debugallocation_shim.cc
#"$tcmalloc_dir/src/tcmalloc.cc",
"$tcmalloc_dir/src/thread_cache.cc",
"$tcmalloc_dir/src/thread_cache.h",
"$tcmalloc_dir/src/windows/port.cc",
"$tcmalloc_dir/src/windows/port.h",
"debugallocation_shim.cc",
# These are both #included by allocator_shim for maximal linking.
#"generic_allocators.cc",
#"win_allocator.cc",
]
# Disable the heap checker in tcmalloc.
defines = [ "NO_HEAP_CHECK" ]
include_dirs = [
".",
"$tcmalloc_dir/src/base",
"$tcmalloc_dir/src",
]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [
"//build/config/compiler:no_chromium_code",
":tcmalloc_flags",
]
deps = []
if (enable_profiling) {
sources += [
"$tcmalloc_dir/src/base/thread_lister.c",
"$tcmalloc_dir/src/base/thread_lister.h",
"$tcmalloc_dir/src/profile-handler.cc",
"$tcmalloc_dir/src/profile-handler.h",
"$tcmalloc_dir/src/profiledata.cc",
"$tcmalloc_dir/src/profiledata.h",
"$tcmalloc_dir/src/profiler.cc",
]
defines += [ "ENABLE_PROFILING=1" ]
}
if (is_linux || is_android) {
sources -= [
"$tcmalloc_dir/src/system-alloc.h",
"$tcmalloc_dir/src/windows/port.cc",
"$tcmalloc_dir/src/windows/port.h",
]
# We enable all warnings by default, but upstream disables a few.
# Keep "-Wno-*" flags in sync with upstream by comparing against:
# http://code.google.com/p/google-perftools/source/browse/trunk/Makefile.am
cflags = [
"-Wno-sign-compare",
"-Wno-unused-result",
]
# Compiling tcmalloc with -fvisibility=default is only necessary when
# not using the allocator shim, which provides the correct visibility
# annotations for those symbols which need to be exported (see
# //base/allocator/allocator_shim_override_glibc_weak_symbols.h and
# //base/allocator/allocator_shim_internals.h for the definition of
# SHIM_ALWAYS_EXPORT).
if (!use_experimental_allocator_shim) {
configs -= [ "//build/config/gcc:symbol_visibility_hidden" ]
configs += [ "//build/config/gcc:symbol_visibility_default" ]
}
ldflags = [
# Don't let linker rip this symbol out, otherwise the heap&cpu
# profilers will not initialize properly on startup.
"-Wl,-uIsHeapProfilerRunning,-uProfilerStart",
# Do the same for heap leak checker.
"-Wl,-u_Z21InitialMallocHook_NewPKvj,-u_Z22InitialMallocHook_MMapPKvS0_jiiix,-u_Z22InitialMallocHook_SbrkPKvi",
"-Wl,-u_Z21InitialMallocHook_NewPKvm,-u_Z22InitialMallocHook_MMapPKvS0_miiil,-u_Z22InitialMallocHook_SbrkPKvl",
"-Wl,-u_ZN15HeapLeakChecker12IgnoreObjectEPKv,-u_ZN15HeapLeakChecker14UnIgnoreObjectEPKv",
]
}
# Make sure the allocation library is optimized as much as possible when
# we"re in release mode.
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
configs += [ "//build/config/compiler:optimize_max" ]
}
deps += [ "//base/third_party/dynamic_annotations" ]
}
} # use_allocator == "tcmalloc"
buildflag_header("features") {
header = "features.h"
flags = [ "USE_EXPERIMENTAL_ALLOCATOR_SHIM=$use_experimental_allocator_shim" ]
}
if (use_experimental_allocator_shim) {
# Used to shim malloc symbols on Android. see //base/allocator/README.md.
config("wrap_malloc_symbols") {
ldflags = [
"-Wl,-wrap,calloc",
"-Wl,-wrap,free",
"-Wl,-wrap,malloc",
"-Wl,-wrap,memalign",
"-Wl,-wrap,posix_memalign",
"-Wl,-wrap,pvalloc",
"-Wl,-wrap,realloc",
"-Wl,-wrap,valloc",
]
}
source_set("unified_allocator_shim") {
# TODO(primiano): support other platforms, currently this works only on
# Linux/CrOS/Android. http://crbug.com/550886 .
configs += [ "//base:base_implementation" ] # for BASE_EXPORT
visibility = [ "//base:base" ]
sources = [
"allocator_shim.cc",
"allocator_shim.h",
"allocator_shim_internals.h",
"allocator_shim_override_cpp_symbols.h",
"allocator_shim_override_libc_symbols.h",
]
if (is_linux && use_allocator == "tcmalloc") {
sources += [
"allocator_shim_default_dispatch_to_tcmalloc.cc",
"allocator_shim_override_glibc_weak_symbols.h",
]
deps = [
":tcmalloc",
]
} else if (is_linux && use_allocator == "none") {
sources += [ "allocator_shim_default_dispatch_to_glibc.cc" ]
} else if (is_android && use_allocator == "none") {
sources += [
"allocator_shim_default_dispatch_to_linker_wrapped_symbols.cc",
"allocator_shim_override_linker_wrapped_symbols.h",
]
all_dependent_configs = [ ":wrap_malloc_symbols" ]
}
}
}