curl/tests/libtest/CMakeLists.txt
Viktor Szakats 3f8fc25720
cmake: add support for "unity" builds
Aka "jumbo" or "amalgamation" builds. It means to compile all sources
per target as a single C source. This is experimental.

You can enable it by passing `-DCMAKE_UNITY_BUILD=ON` to cmake.
It requires CMake 3.16 or newer.

It makes builds (much) faster, allows for better optimizations and tends
to promote less ambiguous code.

Also add a new AppVeyor CI job and convert an existing one to use
"unity" mode (one MSVC, one MinGW), and enable it for one macOS CI job.

Fix related issues:
- add missing include guard to `easy_lock.h`.
- rename static variables and functions (and a macro) with names reused
  across sources, or shadowed by local variables.
- add an `#undef` after use.
- add a missing `#undef` before use.
- move internal definitions from `ftp.h` to `ftp.c`.
- `curl_memory.h` fixes to make it work when included repeatedly.
- stop building/linking curlx bits twice for a static-mode curl tool.
  These caused doubly defined symbols in unity builds.
- silence missing extern declarations compiler warning for ` _CRT_glob`.
- fix extern declarations for `tool_freq` and `tool_isVistaOrGreater`.
- fix colliding static symbols in debug mode: `debugtime()` and
  `statename`.
- rename `ssl_backend_data` structure to unique names for each
  TLS-backend, along with the `ssl_connect_data` struct member
  referencing them. This required adding casts for each access.
- add workaround for missing `[P]UNICODE_STRING` types in certain Windows
  builds when compiling `lib/ldap.c`. To support "unity" builds, we had
  to enable `SCHANNEL_USE_BLACKLISTS` for Schannel (a Windows
  `schannel.h` option) _globally_. This caused an indirect inclusion of
  Windows `schannel.h` from `ldap.c` via `winldap.h` to have it enabled
  as well. This requires `[P]UNICODE_STRING` types, which is apperantly
  not defined automatically (as seen with both MSVS and mingw-w64).
  This patch includes `<subauth.h>` to fix it.
  Ref: https://github.com/curl/curl/runs/13987772013
  Ref: https://dev.azure.com/daniel0244/curl/_build/results?buildId=15827&view=logs&jobId=2c9f582d-e278-56b6-4354-f38a4d851906&j=2c9f582d-e278-56b6-4354-f38a4d851906&t=90509b00-34fa-5a81-35d7-5ed9569d331c
- tweak unity builds to compile `lib/memdebug.c` separately in memory
  trace builds to avoid PP confusion.
- force-disable unity for test programs.
- do not compile and link libcurl sources to libtests _twice_ when libcurl
  is built in static mode.

KNOWN ISSUES:
- running tests with unity builds may fail in cases.
- some build configurations/env may not compile in unity mode. E.g.:
  https://ci.appveyor.com/project/curlorg/curl/builds/47230972/job/51wfesgnfuauwl8q#L250

Ref: https://github.com/libssh2/libssh2/issues/1034
Ref: https://cmake.org/cmake/help/latest/prop_tgt/UNITY_BUILD.html
Ref: https://en.wikipedia.org/wiki/Unity_build

Closes #11095
2023-06-07 13:06:08 +00:00

89 lines
3.4 KiB
CMake

#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
set(TARGET_LABEL_PREFIX "Test ")
function(setup_test TEST_NAME) # ARGN are the files in the test
if(NOT BUILD_SHARED_LIBS)
# These are part of the libcurl static lib. Do not compile/link them again.
list(REMOVE_ITEM ARGN ${WARNLESS} ${MULTIBYTE} ${TIMEDIFF})
endif()
add_executable(${TEST_NAME} EXCLUDE_FROM_ALL ${ARGN})
add_dependencies(testdeps ${TEST_NAME})
string(TOUPPER ${TEST_NAME} UPPER_TEST_NAME)
include_directories(
${CURL_SOURCE_DIR}/lib # To be able to reach "curl_setup_once.h"
${CURL_BINARY_DIR}/lib # To be able to reach "curl_config.h"
${CURL_BINARY_DIR}/include # To be able to reach "curl/curl.h"
${CURL_SOURCE_DIR}/tests/libtest # To be able to build generated tests
)
if(USE_ARES)
include_directories(${CARES_INCLUDE_DIR})
endif()
target_link_libraries(${TEST_NAME} libcurl ${CURL_LIBS})
set_target_properties(${TEST_NAME}
PROPERTIES COMPILE_DEFINITIONS ${UPPER_TEST_NAME})
set_target_properties(${TEST_NAME}
PROPERTIES PROJECT_LABEL "${TARGET_LABEL_PREFIX}${TEST_NAME}")
endfunction()
transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
include(${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake)
foreach(TEST_NAME ${noinst_PROGRAMS})
if(DEFINED ${TEST_NAME}_SOURCES)
setup_test(${TEST_NAME} ${${TEST_NAME}_SOURCES})
else()
setup_test(${TEST_NAME} ${nodist_${TEST_NAME}_SOURCES})
endif()
endforeach()
# Allows for hostname override to make tests machine independent.
# TODO this cmake build assumes a shared build, detect static linking here!
if(NOT WIN32)
add_library(hostname MODULE EXCLUDE_FROM_ALL sethostname.c sethostname.h)
add_dependencies(testdeps hostname)
# Output to .libs for compatibility with autotools, the test data expects a
# library at (tests)/libtest/.libs/libhostname.so
set_target_properties(hostname PROPERTIES
LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/.libs)
if(HIDES_CURL_PRIVATE_SYMBOLS)
set_property(TARGET hostname APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
set_property(TARGET hostname APPEND PROPERTY COMPILE_FLAGS ${CURL_CFLAG_SYMBOLS_HIDE})
endif()
endif()
add_custom_command(
OUTPUT lib1521.c
COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/mk-lib1521.pl < ${CURL_SOURCE_DIR}/include/curl/curl.h > lib1521.c
DEPENDS
"${CMAKE_CURRENT_SOURCE_DIR}/mk-lib1521.pl"
"${CURL_SOURCE_DIR}/include/curl/curl.h"
VERBATIM)