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Abseil Team 12bc53e031 Export of internal Abseil changes 
--
c99f979ad34f155fbeeea69b88bdc7458d89a21c by Derek Mauro <dmauro@google.com>:

Remove a floating point division by zero test.

This isn't testing behavior related to the library, and MSVC warns
about it in opt mode.

PiperOrigin-RevId: 285220804

--
68b015491f0dbf1ab547994673281abd1f34cd4b by Gennadiy Rozental <rogeeff@google.com>:

This CL introduces following changes to the class FlagImpl:
* We eliminate the CommandLineFlagLocks struct. Instead callback guard and callback function are combined into a single CallbackData struct, while primary data lock is stored separately.
* CallbackData member of class FlagImpl is initially set to be nullptr and is only allocated and initialized when a flag's callback is being set. For most flags we do not pay for the extra space and extra absl::Mutex now.
* Primary data guard is stored in data_guard_ data member. This is a properly aligned character buffer of necessary size. During initialization of the flag we construct absl::Mutex in this space using placement new call.
* We now avoid extra value copy after successful attempt to parse value out of string. Instead we swap flag's current value with tentative value we just produced.

PiperOrigin-RevId: 285132636

--
ed45d118fb818969eb13094cf7827c885dfc562c by Tom Manshreck <shreck@google.com>:

Change null-term* (and nul-term*) to NUL-term* in comments

PiperOrigin-RevId: 285036610

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729619017944db895ce8d6d29c1995aa2e5628a5 by Derek Mauro <dmauro@google.com>:

Use the Posix implementation of thread identity on MinGW.
Some versions of MinGW suffer from thread_local bugs.

PiperOrigin-RevId: 285022920

--
39a25493503c76885bc3254c28f66a251c5b5bb0 by Greg Falcon <gfalcon@google.com>:

Implementation detail change.

Add further ABSL_NAMESPACE_BEGIN and _END annotation macros to files in Abseil.

PiperOrigin-RevId: 285012012
GitOrigin-RevId: c99f979ad34f155fbeeea69b88bdc7458d89a21c
Change-Id: I4c85d3704e45d11a9ac50d562f39640a6adbedc1
2019-12-12 15:37:13 -05:00

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#
# 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
#
# https://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.
#
load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
load(
"//absl:copts/configure_copts.bzl",
"ABSL_DEFAULT_COPTS",
"ABSL_DEFAULT_LINKOPTS",
"ABSL_TEST_COPTS",
)
package(
default_visibility = ["//visibility:public"],
)
licenses(["notice"]) # Apache 2.0
cc_library(
name = "stacktrace",
srcs = [
"stacktrace.cc",
],
hdrs = ["stacktrace.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":debugging_internal",
"//absl/base:config",
"//absl/base:core_headers",
],
)
cc_library(
name = "symbolize",
srcs = [
"symbolize.cc",
"symbolize_elf.inc",
"symbolize_unimplemented.inc",
"symbolize_win32.inc",
],
hdrs = [
"internal/symbolize.h",
"symbolize.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS + select({
"//absl:windows": ["-DEFAULTLIB:dbghelp.lib"],
"//conditions:default": [],
}),
deps = [
":debugging_internal",
":demangle_internal",
"//absl/base",
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:dynamic_annotations",
"//absl/base:malloc_internal",
"//absl/base:raw_logging_internal",
],
)
cc_test(
name = "symbolize_test",
srcs = ["symbolize_test.cc"],
copts = ABSL_TEST_COPTS + select({
"//absl:windows": ["/Z7"],
"//conditions:default": [],
}),
linkopts = ABSL_DEFAULT_LINKOPTS + select({
"//absl:windows": ["/DEBUG"],
"//conditions:default": [],
}),
deps = [
":stack_consumption",
":symbolize",
"//absl/base",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/memory",
"@com_google_googletest//:gtest",
],
)
cc_library(
name = "examine_stack",
srcs = [
"internal/examine_stack.cc",
],
hdrs = [
"internal/examine_stack.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = ["//visibility:private"],
deps = [
":stacktrace",
":symbolize",
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
],
)
cc_library(
name = "failure_signal_handler",
srcs = ["failure_signal_handler.cc"],
hdrs = ["failure_signal_handler.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":examine_stack",
":stacktrace",
"//absl/base",
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
],
)
cc_test(
name = "failure_signal_handler_test",
srcs = ["failure_signal_handler_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = select({
"//absl:windows": [],
"//conditions:default": ["-pthread"],
}) + ABSL_DEFAULT_LINKOPTS,
deps = [
":failure_signal_handler",
":stacktrace",
":symbolize",
"//absl/base:raw_logging_internal",
"//absl/strings",
"@com_google_googletest//:gtest",
],
)
cc_library(
name = "debugging_internal",
srcs = [
"internal/address_is_readable.cc",
"internal/elf_mem_image.cc",
"internal/vdso_support.cc",
],
hdrs = [
"internal/address_is_readable.h",
"internal/elf_mem_image.h",
"internal/stacktrace_aarch64-inl.inc",
"internal/stacktrace_arm-inl.inc",
"internal/stacktrace_config.h",
"internal/stacktrace_generic-inl.inc",
"internal/stacktrace_powerpc-inl.inc",
"internal/stacktrace_unimplemented-inl.inc",
"internal/stacktrace_win32-inl.inc",
"internal/stacktrace_x86-inl.inc",
"internal/vdso_support.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:dynamic_annotations",
"//absl/base:raw_logging_internal",
],
)
cc_library(
name = "demangle_internal",
srcs = ["internal/demangle.cc"],
hdrs = ["internal/demangle.h"],
copts = ABSL_DEFAULT_COPTS,
deps = [
"//absl/base",
"//absl/base:config",
"//absl/base:core_headers",
],
)
cc_test(
name = "demangle_test",
srcs = ["internal/demangle_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":demangle_internal",
":stack_consumption",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/memory",
"@com_google_googletest//:gtest_main",
],
)
cc_library(
name = "leak_check",
srcs = ["leak_check.cc"],
hdrs = ["leak_check.h"],
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/base:config",
"//absl/base:core_headers",
],
)
# Adding a dependency to leak_check_disable will disable
# sanitizer leak checking (asan/lsan) in a test without
# the need to mess around with build features.
cc_library(
name = "leak_check_disable",
srcs = ["leak_check_disable.cc"],
linkopts = ABSL_DEFAULT_LINKOPTS,
linkstatic = 1,
deps = ["//absl/base:config"],
alwayslink = 1,
)
# These targets exists for use in tests only, explicitly configuring the
# LEAK_SANITIZER macro. It must be linked with -fsanitize=leak for lsan.
ABSL_LSAN_LINKOPTS = select({
"//absl:llvm_compiler": ["-fsanitize=leak"],
"//conditions:default": [],
})
cc_library(
name = "leak_check_api_enabled_for_testing",
testonly = 1,
srcs = ["leak_check.cc"],
hdrs = ["leak_check.h"],
copts = select({
"//absl:llvm_compiler": ["-DLEAK_SANITIZER"],
"//conditions:default": [],
}),
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = ["//visibility:private"],
deps = [
"//absl/base:config",
],
)
cc_library(
name = "leak_check_api_disabled_for_testing",
testonly = 1,
srcs = ["leak_check.cc"],
hdrs = ["leak_check.h"],
copts = ["-ULEAK_SANITIZER"],
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = ["//visibility:private"],
deps = [
"//absl/base:config",
],
)
cc_test(
name = "leak_check_test",
srcs = ["leak_check_test.cc"],
copts = select({
"//absl:llvm_compiler": ["-DABSL_EXPECT_LEAK_SANITIZER"],
"//conditions:default": [],
}),
linkopts = ABSL_LSAN_LINKOPTS + ABSL_DEFAULT_LINKOPTS,
tags = ["notsan"],
deps = [
":leak_check_api_enabled_for_testing",
"//absl/base",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "leak_check_no_lsan_test",
srcs = ["leak_check_test.cc"],
copts = ["-UABSL_EXPECT_LEAK_SANITIZER"],
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = ["noasan"],
deps = [
":leak_check_api_disabled_for_testing",
"//absl/base", # for raw_logging
"@com_google_googletest//:gtest_main",
],
)
# Test that leak checking is skipped when lsan is enabled but
# ":leak_check_disable" is linked in.
#
# This test should fail in the absence of a dependency on ":leak_check_disable"
cc_test(
name = "disabled_leak_check_test",
srcs = ["leak_check_fail_test.cc"],
linkopts = ABSL_LSAN_LINKOPTS + ABSL_DEFAULT_LINKOPTS,
tags = ["notsan"],
deps = [
":leak_check_api_enabled_for_testing",
":leak_check_disable",
"//absl/base",
"@com_google_googletest//:gtest_main",
],
)
cc_library(
name = "stack_consumption",
testonly = 1,
srcs = ["internal/stack_consumption.cc"],
hdrs = ["internal/stack_consumption.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = ["//visibility:private"],
deps = [
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
],
)
cc_test(
name = "stack_consumption_test",
srcs = ["internal/stack_consumption_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":stack_consumption",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"@com_google_googletest//:gtest_main",
],
)
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