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//
// Copyright (C) 2019 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
cc_defaults {
name: "gwp_asan_defaults",
host_supported: true,
vendor_available: true,
recovery_available: true,
native_bridge_supported: true,
ramdisk_available: true,
// GWP-ASan currently has no support for darwin.
target: {
darwin: {
enabled: false,
},
},
}
cc_defaults {
name: "gwp_asan_no_libs_defaults",
defaults: ["gwp_asan_defaults"],
// GWP-ASan is used by bionic libc, and should have no libc/libc++
// dependencies.
system_shared_libs: [],
stl: "none",
}
cc_library_headers {
name: "gwp_asan_headers",
defaults: [
"gwp_asan_defaults",
"gwp_asan_no_libs_defaults",
],
export_include_dirs: [
".",
],
apex_available: [
// GWP-ASan headers are frequently referenced by apexes that include
// references to libc_headers or libc_scudo. These modules manage apex
// visibility in Soong, and are globally visible.
"//apex_available:anyapex",
],
}
// Only static linkage is provided for performance reasons.
cc_library_static {
name: "gwp_asan",
defaults: ["gwp_asan_no_libs_defaults"],
header_libs: [
"gwp_asan_headers",
"libc_headers", // Required for pthread.h in mutex.h.
],
srcs: [
"gwp_asan/common.cpp",
"gwp_asan/guarded_pool_allocator.cpp",
"gwp_asan/platform_specific/common_posix.cpp",
"gwp_asan/platform_specific/guarded_pool_allocator_posix.cpp",
"gwp_asan/platform_specific/mutex_posix.cpp",
"gwp_asan/platform_specific/utilities_posix.cpp",
"gwp_asan/random.cpp",
"gwp_asan/stack_trace_compressor.cpp",
],
// GWP-ASan requires platform (non-emulated) TLS. We use thread local
// variables in the core, inlined interface to GWP-ASan.
cflags: [
"-fno-emulated-tls",
],
apex_available: [
// Required to not occlude the default platform variation from being
// skipped by the apex mutator. If this happens - the license file for
// the static GWP-ASan library won't be generated, and you'll get errors
// at build time.
"//apex_available:platform",
"com.android.runtime", // GWP-ASan is used in libc.
"com.android.media.swcodec", // libc_scudo (from media) uses GWP-ASan.
],
}
// GWP-ASan crash handler API. Provides all the tools you need to symbolize a
// GWP-ASan crash.
cc_library {
name: "gwp_asan_crash_handler",
defaults: ["gwp_asan_defaults"],
header_libs: [
"gwp_asan_headers",
"libc_headers", // Required for assert.h
],
srcs: [
"gwp_asan/common.cpp",
"gwp_asan/crash_handler.cpp",
"gwp_asan/platform_specific/common_posix.cpp",
"gwp_asan/platform_specific/utilities_posix.cpp",
"gwp_asan/stack_trace_compressor.cpp",
],
apex_available: [
"//apex_available:platform",
"com.android.runtime",
],
}
cc_fuzz {
name: "stack_trace_compressor_fuzzer",
host_supported: true,
srcs: ["tools/stack_trace_compressor_fuzzer.cpp"],
static_libs: ["gwp_asan"],
}
// These unit tests are also continuously run upstream in LLVM's buildbots.
cc_test {
name: "gwp_asan_unittest",
defaults: ["linux_bionic_supported"],
static_libs: [
"gwp_asan",
"gwp_asan_crash_handler",
"libasync_safe",
"liblog",
"libunwindstack",
"liblzma", // Dependency from libunwindstack.
],
ldflags: [
// Ensure that ICF doesn't clobber DeallocateMemory2 into
// DeallocateMemory in tests/backtrace.cpp. This is done in the linker,
// so `optnone` in the function declaration doesn't help.
"-Wl,--icf=none",
],
srcs: [
"android/test_backtrace.cpp",
"android/test_printf.cpp",
"gwp_asan/optional/segv_handler_posix.cpp",
"gwp_asan/tests/alignment.cpp",
"gwp_asan/tests/backtrace.cpp",
"gwp_asan/tests/basic.cpp",
"gwp_asan/tests/compression.cpp",
"gwp_asan/tests/crash_handler_api.cpp",
"gwp_asan/tests/enable_disable.cpp",
"gwp_asan/tests/harness.cpp",
"gwp_asan/tests/iterate.cpp",
"gwp_asan/tests/late_init.cpp",
"gwp_asan/tests/mutex_test.cpp",
"gwp_asan/tests/slot_reuse.cpp",
"gwp_asan/tests/thread_contention.cpp",
],
include_dirs: ["bionic/libc/async_safe/include"],
test_suites: ["general-tests"],
cflags: [
// GWP-ASan requires anything that uses GuardedPoolAllocator headers to
// use platform (ELF) TLS.
"-fno-emulated-tls",
// Ensure that the helper functions in test/backtrace.cpp don't get
// tail-call optimised, as this breaks the unwind chain.
"-fno-optimize-sibling-calls",
// The experimental pass manager seems to kill __attribute__((optnone)),
// and so we disable it (as we rely on optnone for tests/backtrace.cpp).
"-fno-experimental-new-pass-manager",
],
// Late initialisation tests should run isolated, as the platform IE TLS
// PRNG should be initialised to its default state.
isolated: true,
}