CMake support

- initial cmake support
- downgrade cmake requirement to 2.8.12
- factorize cmake test flags / libs options
- refactor test / library under helpers functions, follow bazel's style
- Add fix for MSVC and Windows support ( thx @patrikfors )
- Switch to default "add_subdirectory()" usage mode
- add CMake/README.md for instructions
- add header-only cmake target generator
- map absl target to absl:: namespace

1 files changed, 296 insertions, 0 deletions

diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt
new file mode 100644
index 000000000000..06f09d8f9ac5
--- /dev/null
+++ b/absl/base/CMakeLists.txt
@@ -0,0 +1,296 @@
+#
+# Copyright 2017 The Abseil Authors.
+#
+# 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.
+#
+
+list(APPEND BASE_PUBLIC_HEADERS
+  "attributes.h"
+  "call_once.h"
+  "casts.h"
+  "config.h"
+  "dynamic_annotations.h"
+  "macros.h"
+  "optimization.h"
+  "policy_checks.h"
+  "port.h"
+  "thread_annotations.h"
+)
+
+
+list(APPEND BASE_INTERNAL_HEADERS
+  "internal/atomic_hook.h"
+  "internal/cycleclock.h"
+  "internal/endian.h"
+  "internal/exception_testing.h"
+  "internal/identity.h"
+  "internal/invoke.h"
+  "internal/log_severity.h"
+  "internal/low_level_alloc.h"
+  "internal/low_level_scheduling.h"
+  "internal/malloc_extension_c.h"
+  "internal/malloc_extension.h"
+  "internal/malloc_hook_c.h"
+  "internal/malloc_hook.h"
+  "internal/malloc_hook_invoke.h"
+  "internal/per_thread_tls.h"
+  "internal/raw_logging.h"
+  "internal/scheduling_mode.h"
+  "internal/spinlock.h"
+  "internal/spinlock_wait.h"
+  "internal/sysinfo.h"
+  "internal/thread_identity.h"
+  "internal/throw_delegate.h"
+  "internal/tsan_mutex_interface.h"
+  "internal/unaligned_access.h"
+  "internal/unscaledcycleclock.h"
+)
+
+
+# absl_base main library
+list(APPEND BASE_SRC 
+  "internal/cycleclock.cc"
+  "internal/raw_logging.cc"
+  "internal/spinlock.cc"
+  "internal/sysinfo.cc"
+  "internal/thread_identity.cc"
+  "internal/unscaledcycleclock.cc"
+  "internal/spinlock_wait.cc"
+  "internal/low_level_alloc.cc"
+  "internal/malloc_hook.cc"
+  "dynamic_annotations.cc"
+  ${BASE_PUBLIC_HEADERS}
+  ${BASE_INTERNAL_HEADERS}
+)
+
+absl_library(
+  TARGET
+    absl_base
+  SOURCES
+    ${BASE_SRC}
+  EXPORT_NAME
+    base
+)
+
+# malloc extension library
+set(MALLOC_EXTENSION_SRC "internal/malloc_extension.cc")
+set(MALLOC_EXTENSION_PUBLIC_LIBRARIES absl::base)
+
+absl_library(
+  TARGET
+    absl_malloc_extension
+  SOURCES
+    ${MALLOC_EXTENSION_SRC}
+  PUBLIC_LIBRARIES
+    ${MALLOC_EXTENSION_PUBLIC_LIBRARIES}
+)
+
+# throw delegate library
+set(THROW_DELEGATE_SRC "internal/throw_delegate.cc")
+
+absl_library(
+  TARGET
+    absl_throw_delegate
+  SOURCES
+    ${THROW_DELEGATE_SRC}
+  PUBLIC_LIBRARIES
+    ${THROW_DELEGATE_PUBLIC_LIBRARIES}
+  PRIVATE_COMPILE_FLAGS
+    ${ABSL_EXCEPTIONS_FLAG}
+)
+
+
+#
+## TESTS
+#
+
+# call once test
+set(CALL_ONCE_TEST_SRC "call_once_test.cc")
+set(CALL_ONCE_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
+
+absl_test(
+  TARGET
+    call_once_test
+  SOURCES
+    ${CALL_ONCE_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${CALL_ONCE_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test bit_cast_test
+set(BIT_CAST_TEST_SRC "bit_cast_test.cc")
+
+absl_test(
+  TARGET
+    bit_cast_test
+  SOURCES
+    ${BIT_CAST_TEST_SRC}
+)
+
+
+# test absl_throw_delegate_test
+set(THROW_DELEGATE_TEST_SRC "throw_delegate_test.cc")
+set(THROW_DELEGATE_TEST_PUBLIC_LIBRARIES absl::base absl_throw_delegate)
+
+absl_test(
+  TARGET
+    throw_delegate_test
+  SOURCES
+    ${THROW_DELEGATE_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${THROW_DELEGATE_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test invoke_test
+set(INVOKE_TEST_SRC "invoke_test.cc")
+set(INVOKE_TEST_PUBLIC_LIBRARIES absl::strings)
+
+absl_test(
+  TARGET
+    invoke_test
+  SOURCES
+    ${INVOKE_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${INVOKE_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test spinlock_test_common
+set(SPINLOCK_TEST_COMMON_SRC "spinlock_test_common.cc")
+set(SPINLOCK_TEST_COMMON_PUBLIC_LIBRARIES absl::base absl::synchronization)
+
+absl_test(
+  TARGET
+    spinlock_test_common
+  SOURCES
+    ${SPINLOCK_TEST_COMMON_SRC}
+  PUBLIC_LIBRARIES
+    ${SPINLOCK_TEST_COMMON_PUBLIC_LIBRARIES}
+)
+
+
+# test spinlock_test
+set(SPINLOCK_TEST_SRC "spinlock_test_common.cc")
+set(SPINLOCK_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
+
+absl_test(
+  TARGET
+    spinlock_test
+  SOURCES
+    ${SPINLOCK_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${SPINLOCK_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test endian_test
+set(ENDIAN_TEST_SRC "internal/endian_test.cc")
+
+absl_test(
+  TARGET
+    endian_test
+  SOURCES
+    ${ENDIAN_TEST_SRC}
+)
+
+
+# test config_test
+set(CONFIG_TEST_SRC "config_test.cc")
+set(CONFIG_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
+absl_test(
+  TARGET
+    config_test
+  SOURCES
+    ${CONFIG_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${CONFIG_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test raw_logging_test
+set(RAW_LOGGING_TEST_SRC "raw_logging_test.cc")
+set(RAW_LOGGING_TEST_PUBLIC_LIBRARIES absl::base)
+
+absl_test(
+  TARGET
+    raw_logging_test
+  SOURCES
+    ${RAW_LOGGING_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${RAW_LOGGING_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test sysinfo_test
+set(SYSINFO_TEST_SRC "internal/sysinfo_test.cc")
+set(SYSINFO_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
+
+absl_test(
+  TARGET
+    sysinfo_test
+  SOURCES
+    ${SYSINFO_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${SYSINFO_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test low_level_alloc_test
+set(LOW_LEVEL_ALLOC_TEST_SRC "internal/low_level_alloc_test.cc")
+set(LOW_LEVEL_ALLOC_TEST_PUBLIC_LIBRARIES absl::base)
+
+absl_test(
+  TARGET
+    low_level_alloc_test
+  SOURCES
+    ${LOW_LEVEL_ALLOC_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${LOW_LEVEL_ALLOC_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test thread_identity_test
+set(THREAD_IDENTITY_TEST_SRC "internal/thread_identity_test.cc")
+set(THREAD_IDENTITY_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
+
+absl_test(
+  TARGET
+    thread_identity_test
+  SOURCES
+    ${THREAD_IDENTITY_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${THREAD_IDENTITY_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test absl_malloc_extension_system_malloc_test
+set(MALLOC_EXTENSION_SYSTEM_MALLOC_TEST_SRC "internal/malloc_extension_test.cc")
+set(MALLOC_EXTENSION_SYSTEM_MALLOC_TEST_PUBLIC_LIBRARIES absl::base absl_malloc_extension)
+set(MALLOC_EXTENSION_SYSTEM_MALLOC_TEST_PRIVATE_COMPILE_FLAGS "-DABSL_MALLOC_EXTENSION_TEST_ALLOW_MISSING_EXTENSION=1")
+
+absl_test(
+  TARGET
+    absl_malloc_extension_system_malloc_test
+  SOURCES
+    ${MALLOC_EXTENSION_SYSTEM_MALLOC_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${MALLOC_EXTENSION_SYSTEM_MALLOC_TEST_PUBLIC_LIBRARIES}
+  PRIVATE_COMPILE_FLAGS
+    ${MALLOC_EXTENSION_SYSTEM_MALLOC_TEST_PRIVATE_COMPILE_FLAGS}
+)
+
+
+
+