9b8f545920
Mark a CIE with a S in its augmentation string as signal frame.
This allows the code to properly handle signal frame data if none
of the signal frame pattern matchers work.
For a signal frame, DwarfSectionImpl<AddressType>::Eval needs to
continue the unwinding even if PC is zero. A zero PC means that the
program has crashed, and we should try to recover the real PC using the
return address on the stack or LR. This behavior is tested by
UnwindOffline.signal_{x86,x86_64}, which modify the libc.so files
so that the signal frame pattern matcher fails and the CIE/FDE
data is used instead.
Test: libunwindstack_test
Change-Id: I4655b070028fd984345311a5e743796f8c30ed36
494 lines
12 KiB
Text
494 lines
12 KiB
Text
//
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// Copyright (C) 2017 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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cc_defaults {
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name: "libunwindstack_flags",
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host_supported: true,
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cflags: [
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"-Wall",
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"-Werror",
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"-Wextra",
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],
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target: {
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darwin: {
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enabled: false,
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},
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linux_bionic: {
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enabled: true,
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},
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},
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}
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cc_defaults {
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name: "libunwindstack_defaults",
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defaults: ["libunwindstack_flags"],
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export_include_dirs: ["include"],
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srcs: [
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"ArmExidx.cpp",
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"DexFiles.cpp",
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"DwarfCfa.cpp",
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"DwarfEhFrameWithHdr.cpp",
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"DwarfMemory.cpp",
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"DwarfOp.cpp",
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"DwarfSection.cpp",
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"Elf.cpp",
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"ElfInterface.cpp",
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"ElfInterfaceArm.cpp",
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"Global.cpp",
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"JitDebug.cpp",
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"Log.cpp",
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"MapInfo.cpp",
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"Maps.cpp",
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"Memory.cpp",
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"MemoryMte.cpp",
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"LocalUnwinder.cpp",
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"Regs.cpp",
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"RegsArm.cpp",
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"RegsArm64.cpp",
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"RegsX86.cpp",
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"RegsX86_64.cpp",
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"RegsMips.cpp",
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"RegsMips64.cpp",
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"Unwinder.cpp",
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"Symbols.cpp",
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],
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cflags: [
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"-Wexit-time-destructors",
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],
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target: {
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host: {
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// Always disable optimizations for host to make it easier to debug.
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cflags: [
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"-O0",
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"-g",
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],
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},
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android: {
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header_libs: ["bionic_libc_platform_headers"],
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product_variables: {
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experimental_mte: {
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cflags: ["-DANDROID_EXPERIMENTAL_MTE"],
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},
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},
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},
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linux_bionic: {
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header_libs: ["bionic_libc_platform_headers"],
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product_variables: {
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experimental_mte: {
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cflags: ["-DANDROID_EXPERIMENTAL_MTE"],
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},
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},
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},
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},
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arch: {
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x86: {
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srcs: ["AsmGetRegsX86.S"],
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},
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x86_64: {
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srcs: ["AsmGetRegsX86_64.S"],
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},
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},
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static_libs: [
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"libprocinfo",
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],
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shared_libs: [
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"libbase",
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"liblog",
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"liblzma",
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],
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}
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cc_library {
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name: "libunwindstack",
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vendor_available: true,
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recovery_available: true,
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// TODO(b/153609531): remove when no longer needed.
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native_bridge_supported: true,
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vndk: {
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enabled: true,
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support_system_process: true,
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},
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defaults: ["libunwindstack_defaults"],
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srcs: ["DexFile.cpp"],
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cflags: ["-DDEXFILE_SUPPORT"],
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shared_libs: ["libdexfile_support"],
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target: {
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vendor: {
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cflags: ["-UDEXFILE_SUPPORT"],
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exclude_srcs: ["DexFile.cpp"],
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exclude_shared_libs: ["libdexfile_support"],
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},
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recovery: {
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cflags: ["-UDEXFILE_SUPPORT"],
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exclude_srcs: ["DexFile.cpp"],
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exclude_shared_libs: ["libdexfile_support"],
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},
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native_bridge: {
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cflags: ["-UDEXFILE_SUPPORT"],
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exclude_srcs: ["DexFile.cpp"],
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exclude_shared_libs: ["libdexfile_support"],
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},
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},
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apex_available: [
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"//apex_available:platform",
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"com.android.art.debug",
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"com.android.art.release",
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],
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}
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// Static library without DEX support to avoid dependencies on the ART APEX.
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cc_library_static {
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name: "libunwindstack_no_dex",
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recovery_available: true,
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defaults: ["libunwindstack_defaults"],
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visibility: [
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"//external/gwp_asan",
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"//system/core/debuggerd",
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"//system/core/init",
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"//system/core/libbacktrace",
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],
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apex_available: [
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"//apex_available:platform",
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"com.android.runtime",
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],
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}
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//-------------------------------------------------------------------------
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// Unit Tests
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//-------------------------------------------------------------------------
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cc_test_library {
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name: "libunwindstack_local",
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defaults: ["libunwindstack_flags"],
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srcs: ["tests/TestLocal.cpp"],
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cflags: [
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"-O0",
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"-g",
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],
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shared_libs: [
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"libunwindstack",
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],
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relative_install_path: "libunwindstack_test",
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}
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cc_defaults {
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name: "libunwindstack_testlib_flags",
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defaults: ["libunwindstack_flags"],
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srcs: [
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"tests/ArmExidxDecodeTest.cpp",
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"tests/ArmExidxExtractTest.cpp",
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"tests/DexFileTest.cpp",
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"tests/DexFilesTest.cpp",
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"tests/DwarfCfaLogTest.cpp",
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"tests/DwarfCfaTest.cpp",
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"tests/DwarfDebugFrameTest.cpp",
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"tests/DwarfEhFrameTest.cpp",
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"tests/DwarfEhFrameWithHdrTest.cpp",
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"tests/DwarfMemoryTest.cpp",
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"tests/DwarfOpLogTest.cpp",
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"tests/DwarfOpTest.cpp",
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"tests/DwarfSectionTest.cpp",
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"tests/DwarfSectionImplTest.cpp",
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"tests/ElfCacheTest.cpp",
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"tests/ElfFake.cpp",
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"tests/ElfInterfaceArmTest.cpp",
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"tests/ElfInterfaceTest.cpp",
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"tests/ElfTest.cpp",
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"tests/ElfTestUtils.cpp",
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"tests/IsolatedSettings.cpp",
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"tests/JitDebugTest.cpp",
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"tests/LocalUpdatableMapsTest.cpp",
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"tests/LogFake.cpp",
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"tests/MapInfoCreateMemoryTest.cpp",
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"tests/MapInfoGetBuildIDTest.cpp",
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"tests/MapInfoGetElfTest.cpp",
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"tests/MapInfoGetLoadBiasTest.cpp",
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"tests/MapInfoTest.cpp",
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"tests/MapsTest.cpp",
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"tests/MemoryBufferTest.cpp",
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"tests/MemoryCacheTest.cpp",
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"tests/MemoryFake.cpp",
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"tests/MemoryFileTest.cpp",
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"tests/MemoryLocalTest.cpp",
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"tests/MemoryOfflineBufferTest.cpp",
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"tests/MemoryOfflineTest.cpp",
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"tests/MemoryRangeTest.cpp",
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"tests/MemoryRangesTest.cpp",
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"tests/MemoryRemoteTest.cpp",
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"tests/MemoryTest.cpp",
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"tests/MemoryMteTest.cpp",
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"tests/RegsInfoTest.cpp",
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"tests/RegsIterateTest.cpp",
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"tests/RegsStepIfSignalHandlerTest.cpp",
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"tests/RegsTest.cpp",
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"tests/SymbolsTest.cpp",
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"tests/TestUtils.cpp",
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"tests/UnwindOfflineTest.cpp",
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"tests/UnwindTest.cpp",
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"tests/UnwinderTest.cpp",
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"tests/VerifyBionicTerminationTest.cpp",
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],
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cflags: [
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"-O0",
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"-g",
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],
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shared_libs: [
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"libbase",
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"liblog",
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"liblzma",
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"libunwindstack",
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"libdexfile_support",
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],
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static_libs: [
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"libgmock",
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],
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test_suites: ["device-tests"],
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data: [
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"tests/files/elf32.xz",
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"tests/files/elf64.xz",
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"tests/files/offline/art_quick_osr_stub_arm/*",
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"tests/files/offline/bad_eh_frame_hdr_arm64/*",
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"tests/files/offline/debug_frame_first_x86/*",
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"tests/files/offline/debug_frame_load_bias_arm/*",
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"tests/files/offline/eh_frame_bias_x86/*",
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"tests/files/offline/eh_frame_hdr_begin_x86_64/*",
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"tests/files/offline/empty_arm64/*",
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"tests/files/offline/invalid_elf_offset_arm/*",
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"tests/files/offline/jit_debug_arm/*",
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"tests/files/offline/jit_debug_x86/*",
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"tests/files/offline/jit_map_arm/*",
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"tests/files/offline/gnu_debugdata_arm/*",
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"tests/files/offline/load_bias_different_section_bias_arm64/*",
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"tests/files/offline/load_bias_ro_rx_x86_64/*",
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"tests/files/offline/offset_arm/*",
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"tests/files/offline/shared_lib_in_apk_arm64/*",
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"tests/files/offline/shared_lib_in_apk_memory_only_arm64/*",
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"tests/files/offline/shared_lib_in_apk_single_map_arm64/*",
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"tests/files/offline/signal_load_bias_arm/*",
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"tests/files/offline/signal_fde_x86/*",
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"tests/files/offline/signal_fde_x86_64/*",
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"tests/files/offline/straddle_arm/*",
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"tests/files/offline/straddle_arm64/*",
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],
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target: {
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android: {
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header_libs: ["bionic_libc_platform_headers"],
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product_variables: {
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experimental_mte: {
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cflags: ["-DANDROID_EXPERIMENTAL_MTE"],
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},
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},
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},
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linux_bionic: {
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header_libs: ["bionic_libc_platform_headers"],
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product_variables: {
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experimental_mte: {
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cflags: ["-DANDROID_EXPERIMENTAL_MTE"],
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},
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},
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},
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},
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}
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cc_test {
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name: "libunwindstack_test",
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defaults: ["libunwindstack_testlib_flags"],
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isolated: true,
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srcs: [
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"tests/LocalUnwinderTest.cpp",
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],
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required: [
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"libunwindstack_local",
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],
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}
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// Skip LocalUnwinderTest until atest understands required properly.
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cc_test {
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name: "libunwindstack_unit_test",
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defaults: ["libunwindstack_testlib_flags"],
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isolated: true,
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}
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//-------------------------------------------------------------------------
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// Fuzzers
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//-------------------------------------------------------------------------
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cc_defaults {
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name: "libunwindstack_fuzz_defaults",
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host_supported: true,
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defaults: ["libunwindstack_flags"],
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cflags: [
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"-Wno-exit-time-destructors",
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"-g",
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],
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shared_libs: [
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"libbase",
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"liblog",
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"liblzma",
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"libunwindstack",
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"libdexfile_support",
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],
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}
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cc_fuzz {
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name: "libunwindstack_fuzz_unwinder",
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defaults: ["libunwindstack_fuzz_defaults"],
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srcs: [
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"tests/MemoryFake.cpp",
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"tests/ElfFake.cpp",
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"tests/fuzz/UnwinderComponentCreator.cpp",
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"tests/fuzz/UnwinderFuzz.cpp",
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],
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}
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//-------------------------------------------------------------------------
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// Tools
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//-------------------------------------------------------------------------
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cc_defaults {
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name: "libunwindstack_tools",
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defaults: ["libunwindstack_flags"],
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shared_libs: [
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"libunwindstack",
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"libbase",
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"liblzma",
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],
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target: {
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// Always disable optimizations for host to make it easier to debug.
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host: {
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cflags: [
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"-O0",
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"-g",
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],
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},
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},
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}
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cc_binary {
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name: "unwind",
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defaults: ["libunwindstack_tools"],
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srcs: [
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"tools/unwind.cpp",
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],
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}
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cc_binary {
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name: "unwind_info",
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defaults: ["libunwindstack_tools"],
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srcs: [
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"tools/unwind_info.cpp",
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],
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}
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cc_binary {
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name: "unwind_symbols",
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defaults: ["libunwindstack_tools"],
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srcs: [
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"tools/unwind_symbols.cpp",
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],
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}
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cc_binary {
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name: "unwind_for_offline",
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defaults: ["libunwindstack_tools"],
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srcs: [
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"tools/unwind_for_offline.cpp",
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],
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}
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cc_binary {
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name: "unwind_reg_info",
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defaults: ["libunwindstack_tools"],
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srcs: [
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"tools/unwind_reg_info.cpp",
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],
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}
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//-------------------------------------------------------------------------
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// Benchmarks
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//-------------------------------------------------------------------------
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cc_benchmark {
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name: "unwind_benchmarks",
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host_supported: true,
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defaults: ["libunwindstack_flags"],
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// Disable optimizations so that all of the calls are not optimized away.
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cflags: [
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"-O0",
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],
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srcs: [
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"benchmarks/unwind_benchmarks.cpp",
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"benchmarks/ElfBenchmark.cpp",
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"benchmarks/MapsBenchmark.cpp",
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"benchmarks/SymbolBenchmark.cpp",
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"benchmarks/Utils.cpp",
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],
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data: [
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"benchmarks/files/*",
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],
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shared_libs: [
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"libbase",
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"libunwindstack",
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],
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target: {
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android: {
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static_libs: [
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"libmeminfo",
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"libprocinfo",
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],
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},
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},
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}
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// Generates the elf data for use in the tests for .gnu_debugdata frames.
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// Once these files are generated, use the xz command to compress the data.
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cc_binary_host {
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name: "gen_gnudebugdata",
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defaults: ["libunwindstack_flags"],
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srcs: [
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"tests/GenGnuDebugdata.cpp",
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],
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}
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