platform_system_core/libbacktrace/Android.bp
Christopher Ferris 9d5712c123 Implement support for linker rosegment option.
The rosegment linker option results in two maps containing the elf data
existing. One is an execute map where the code lives, and the other is the
read-only segment which contains the elf header information. If the file
backing a shared library in memory is not readable, then the new code
will attempt to find the read-only map that has the same name as the
current execute segment, and that is at offest zero in the file.

Add new unit tests for this functionality.

Add the missing MapInfoCreateMemoryTest.cpp to the list of tests.

Bug: 109657296

Test: Pass new unit tests.
Test: All unit libbacktrace/libunwindstack tests pass with rosegment enabled.
Change-Id: If8f69e4a067d77b3f2a7c31e2e5cd989a0702a8c
2018-10-03 20:48:45 -07:00

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//
// Copyright (C) 2014 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: "libbacktrace_common",
cflags: [
"-Wall",
"-Werror",
],
target: {
darwin: {
enabled: false,
},
},
}
libbacktrace_sources = [
"Backtrace.cpp",
"BacktraceCurrent.cpp",
"BacktracePtrace.cpp",
"ThreadEntry.cpp",
"UnwindStack.cpp",
"UnwindStackMap.cpp",
]
cc_library_headers {
name: "libbacktrace_headers",
vendor_available: true,
recovery_available: true,
export_include_dirs: ["include"],
}
cc_library {
name: "libbacktrace",
vendor_available: false,
recovery_available: true,
vndk: {
enabled: true,
support_system_process: true,
},
defaults: ["libbacktrace_common"],
host_supported: true,
cflags: [
"-Wexit-time-destructors",
],
srcs: [
"BacktraceMap.cpp",
],
export_include_dirs: ["include"],
target: {
darwin: {
enabled: true,
shared_libs: [
"libbase",
],
},
linux: {
srcs: libbacktrace_sources,
shared_libs: [
"libbase",
"liblog",
"libunwindstack",
],
static_libs: [
"libprocinfo",
],
},
android: {
static_libs: ["libasync_safe"],
},
vendor: {
cflags: ["-DNO_LIBDEXFILE_SUPPORT"],
},
recovery: {
cflags: ["-DNO_LIBDEXFILE_SUPPORT"],
},
},
whole_static_libs: ["libdemangle"],
}
cc_test_library {
name: "libbacktrace_test",
defaults: ["libbacktrace_common"],
host_supported: true,
strip: {
none: true,
},
cflags: ["-O0"],
srcs: ["backtrace_testlib.cpp"],
shared_libs: [
"libunwindstack",
],
relative_install_path: "backtrace_test_libs",
target: {
linux_glibc: {
// This forces the creation of eh_frame with unwind information
// for host.
cflags: [
"-fcxx-exceptions"
],
},
},
}
//-------------------------------------------------------------------------
// The backtrace_test executable.
//-------------------------------------------------------------------------
cc_test {
name: "backtrace_test",
isolated: true,
defaults: ["libbacktrace_common"],
host_supported: true,
srcs: [
"backtrace_offline_test.cpp",
"backtrace_test.cpp",
],
cflags: [
"-fno-builtin",
"-O0",
"-g",
],
shared_libs: [
"libbacktrace",
"libbase",
"liblog",
"libunwindstack",
],
group_static_libs: true,
// So that the dlopen can find the libbacktrace_test.so.
ldflags: [
"-Wl,--rpath,${ORIGIN}/../backtrace_test_libs",
],
test_suites: ["device-tests"],
data: [
"testdata/arm/*",
"testdata/arm64/*",
"testdata/x86/*",
"testdata/x86_64/*",
],
required: [
"libbacktrace_test",
],
}
cc_benchmark {
name: "backtrace_benchmarks",
defaults: ["libbacktrace_common"],
srcs: [
"backtrace_benchmarks.cpp",
"backtrace_read_benchmarks.cpp",
],
shared_libs: [
"libbacktrace",
"libbase",
"libunwindstack",
],
}