[llvm-branch-commits] [lld] 5f9211b - Revert abb00753 "build: reduce CMake handling for zlib" (PR44780)
Hans Wennborg via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Tue Mar 3 05:52:05 PST 2020
Author: Hans Wennborg
Date: 2020-03-03T14:31:05+01:00
New Revision: 5f9211bc46fa1a8d1db3a2bc27c2b115cd617795
URL: https://github.com/llvm/llvm-project/commit/5f9211bc46fa1a8d1db3a2bc27c2b115cd617795
DIFF: https://github.com/llvm/llvm-project/commit/5f9211bc46fa1a8d1db3a2bc27c2b115cd617795.diff
LOG: Revert abb00753 "build: reduce CMake handling for zlib" (PR44780)
and follow-ups:
a2ca1c2d "build: disable zlib by default on Windows"
2181bf40 "[CMake] Link against ZLIB::ZLIB"
1079c68a "Attempt to fix ZLIB CMake logic on Windows"
This changed the output of llvm-config --system-libs, and more
importantly it broke stand-alone builds. Instead of piling on more fix
attempts, let's revert this to reduce the risk of more breakages.
(cherry picked from commit 916be8fd6a0a0feea4cefcbeb0c22c65848d7a2e)
Added:
Modified:
clang/test/CMakeLists.txt
clang/test/lit.site.cfg.py.in
compiler-rt/test/lit.common.configured.in
lld/test/CMakeLists.txt
lld/test/lit.site.cfg.py.in
lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
llvm/CMakeLists.txt
llvm/cmake/config-ix.cmake
llvm/include/llvm/Config/config.h.cmake
llvm/lib/Support/CMakeLists.txt
llvm/lib/Support/CRC.cpp
llvm/lib/Support/Compression.cpp
llvm/test/CMakeLists.txt
llvm/test/lit.site.cfg.py.in
llvm/unittests/Support/CompressionTest.cpp
Removed:
################################################################################
diff --git a/clang/test/CMakeLists.txt b/clang/test/CMakeLists.txt
index 2c6487e8c260..7fdc7d0be79f 100644
--- a/clang/test/CMakeLists.txt
+++ b/clang/test/CMakeLists.txt
@@ -9,6 +9,15 @@ endif ()
string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} CLANG_TOOLS_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
+if(CLANG_BUILT_STANDALONE)
+ # Set HAVE_LIBZ according to recorded LLVM_ENABLE_ZLIB value. This
+ # value is forced to 0 if zlib was not found, so it is fine to use it
+ # instead of HAVE_LIBZ (not recorded).
+ if(LLVM_ENABLE_ZLIB)
+ set(HAVE_LIBZ 1)
+ endif()
+endif()
+
llvm_canonicalize_cmake_booleans(
CLANG_BUILD_EXAMPLES
CLANG_ENABLE_ARCMT
@@ -16,7 +25,7 @@ llvm_canonicalize_cmake_booleans(
CLANG_SPAWN_CC1
ENABLE_BACKTRACES
ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER
- LLVM_ENABLE_ZLIB
+ HAVE_LIBZ
LLVM_ENABLE_PER_TARGET_RUNTIME_DIR
LLVM_ENABLE_PLUGINS
LLVM_ENABLE_THREADS)
diff --git a/clang/test/lit.site.cfg.py.in b/clang/test/lit.site.cfg.py.in
index e9b35ac01771..520afab6af82 100644
--- a/clang/test/lit.site.cfg.py.in
+++ b/clang/test/lit.site.cfg.py.in
@@ -16,7 +16,7 @@ config.host_triple = "@LLVM_HOST_TRIPLE@"
config.target_triple = "@TARGET_TRIPLE@"
config.host_cxx = "@CMAKE_CXX_COMPILER@"
config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
-config.have_zlib = @LLVM_ENABLE_ZLIB@
+config.have_zlib = @HAVE_LIBZ@
config.clang_arcmt = @CLANG_ENABLE_ARCMT@
config.clang_default_cxx_stdlib = "@CLANG_DEFAULT_CXX_STDLIB@"
config.clang_staticanalyzer = @CLANG_ENABLE_STATIC_ANALYZER@
diff --git a/compiler-rt/test/lit.common.configured.in b/compiler-rt/test/lit.common.configured.in
index 0fb51741783e..b4862f74cdd0 100644
--- a/compiler-rt/test/lit.common.configured.in
+++ b/compiler-rt/test/lit.common.configured.in
@@ -50,7 +50,7 @@ if config.enable_per_target_runtime_dir:
else:
set_default("target_suffix", "-%s" % config.target_arch)
-set_default("have_zlib", "@LLVM_ENABLE_ZLIB@")
+set_default("have_zlib", "@HAVE_LIBZ@")
set_default("libcxx_used", "@LLVM_LIBCXX_USED@")
# LLVM tools dir can be passed in lit parameters, so try to
diff --git a/lld/test/CMakeLists.txt b/lld/test/CMakeLists.txt
index dc8cedf2ea09..8be42c46dd8a 100644
--- a/lld/test/CMakeLists.txt
+++ b/lld/test/CMakeLists.txt
@@ -4,8 +4,17 @@ set(LLVM_BUILD_MODE "%(build_mode)s")
set(LLVM_TOOLS_DIR "${LLVM_TOOLS_BINARY_DIR}/%(build_config)s")
set(LLVM_LIBS_DIR "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/%(build_config)s")
+if(LLD_BUILT_STANDALONE)
+ # Set HAVE_LIBZ according to recorded LLVM_ENABLE_ZLIB value. This
+ # value is forced to 0 if zlib was not found, so it is fine to use it
+ # instead of HAVE_LIBZ (not recorded).
+ if(LLVM_ENABLE_ZLIB)
+ set(HAVE_LIBZ 1)
+ endif()
+endif()
+
llvm_canonicalize_cmake_booleans(
- LLVM_ENABLE_ZLIB
+ HAVE_LIBZ
LLVM_LIBXML2_ENABLED
)
diff --git a/lld/test/lit.site.cfg.py.in b/lld/test/lit.site.cfg.py.in
index 531fce15839d..02840f8d6a30 100644
--- a/lld/test/lit.site.cfg.py.in
+++ b/lld/test/lit.site.cfg.py.in
@@ -14,7 +14,7 @@ config.lld_libs_dir = "@LLVM_LIBRARY_OUTPUT_INTDIR@"
config.lld_tools_dir = "@LLVM_RUNTIME_OUTPUT_INTDIR@"
config.target_triple = "@TARGET_TRIPLE@"
config.python_executable = "@PYTHON_EXECUTABLE@"
-config.have_zlib = @LLVM_ENABLE_ZLIB@
+config.have_zlib = @HAVE_LIBZ@
config.sizeof_void_p = @CMAKE_SIZEOF_VOID_P@
# Support substitution of the tools and libs dirs with user parameters. This is
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
index 7cea013eea7f..0a98f6a15d75 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
@@ -50,7 +50,7 @@
#include <compression.h>
#endif
-#if LLVM_ENABLE_ZLIB
+#if defined(HAVE_LIBZ)
#include <zlib.h>
#endif
@@ -582,7 +582,7 @@ bool GDBRemoteCommunication::DecompressPacket() {
}
#endif
-#if LLVM_ENABLE_ZLIB
+#if defined(HAVE_LIBZ)
if (decompressed_bytes == 0 && decompressed_bufsize != ULONG_MAX &&
decompressed_buffer != nullptr &&
m_compression_type == CompressionType::ZlibDeflate) {
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
index b2f1ee527e8b..4dafa1d494d8 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -1045,7 +1045,7 @@ void GDBRemoteCommunicationClient::MaybeEnableCompression(
}
#endif
-#if LLVM_ENABLE_ZLIB
+#if defined(HAVE_LIBZ)
if (avail_type == CompressionType::None) {
for (auto compression : supported_compressions) {
if (compression == "zlib-deflate") {
diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index 567396870a5c..a02c2a5a23f1 100644
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -347,13 +347,7 @@ option(LLVM_ENABLE_LIBPFM "Use libpfm for performance counters if available." ON
option(LLVM_ENABLE_THREADS "Use threads if available." ON)
-if(CMAKE_SYSTEM_NAME STREQUAL Windows)
- set(zlib_DEFAULT "OFF")
-else()
- set(zlib_DEFAULT "ON")
-endif()
-
-set(LLVM_ENABLE_ZLIB "${zlib_DEFAULT}" CACHE STRING "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON")
+option(LLVM_ENABLE_ZLIB "Use zlib for compression/decompression if available." ON)
set(LLVM_Z3_INSTALL_DIR "" CACHE STRING "Install directory of the Z3 solver.")
diff --git a/llvm/cmake/config-ix.cmake b/llvm/cmake/config-ix.cmake
index fc66dbfcbe7a..f758366bc79d 100644
--- a/llvm/cmake/config-ix.cmake
+++ b/llvm/cmake/config-ix.cmake
@@ -56,6 +56,7 @@ check_include_file(sys/types.h HAVE_SYS_TYPES_H)
check_include_file(termios.h HAVE_TERMIOS_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
+check_include_file(zlib.h HAVE_ZLIB_H)
check_include_file(fenv.h HAVE_FENV_H)
check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
@@ -117,6 +118,19 @@ endif()
# Don't look for these libraries if we're using MSan, since uninstrumented third
# party code may call MSan interceptors like strlen, leading to false positives.
if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
+ set(HAVE_LIBZ 0)
+ if(LLVM_ENABLE_ZLIB)
+ foreach(library z zlib_static zlib)
+ string(TOUPPER ${library} library_suffix)
+ check_library_exists(${library} compress2 "" HAVE_LIBZ_${library_suffix})
+ if(HAVE_LIBZ_${library_suffix})
+ set(HAVE_LIBZ 1)
+ set(ZLIB_LIBRARIES "${library}")
+ break()
+ endif()
+ endforeach()
+ endif()
+
# Don't look for these libraries on Windows.
if (NOT PURE_WINDOWS)
# Skip libedit if using ASan as it contains memory leaks.
@@ -501,21 +515,10 @@ else( LLVM_ENABLE_THREADS )
message(STATUS "Threads disabled.")
endif()
-if(LLVM_ENABLE_ZLIB)
- if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON)
- find_package(ZLIB REQUIRED)
- else()
- find_package(ZLIB)
- endif()
-
- if(ZLIB_FOUND)
- set(LLVM_ENABLE_ZLIB "YES" CACHE STRING
- "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON"
- FORCE)
- else()
- set(LLVM_ENABLE_ZLIB "NO" CACHE STRING
- "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON"
- FORCE)
+if (LLVM_ENABLE_ZLIB )
+ # Check if zlib is available in the system.
+ if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ )
+ set(LLVM_ENABLE_ZLIB 0)
endif()
endif()
diff --git a/llvm/include/llvm/Config/config.h.cmake b/llvm/include/llvm/Config/config.h.cmake
index db170ae5d62d..1a38bc15ab9d 100644
--- a/llvm/include/llvm/Config/config.h.cmake
+++ b/llvm/include/llvm/Config/config.h.cmake
@@ -109,6 +109,9 @@
/* Define to 1 if you have the `pthread_setname_np' function. */
#cmakedefine HAVE_PTHREAD_SETNAME_NP ${HAVE_PTHREAD_SETNAME_NP}
+/* Define to 1 if you have the `z' library (-lz). */
+#cmakedefine HAVE_LIBZ ${HAVE_LIBZ}
+
/* Define to 1 if you have the <link.h> header file. */
#cmakedefine HAVE_LINK_H ${HAVE_LINK_H}
@@ -223,6 +226,9 @@
/* Define to 1 if you have the <valgrind/valgrind.h> header file. */
#cmakedefine HAVE_VALGRIND_VALGRIND_H ${HAVE_VALGRIND_VALGRIND_H}
+/* Define to 1 if you have the <zlib.h> header file. */
+#cmakedefine HAVE_ZLIB_H ${HAVE_ZLIB_H}
+
/* Have host's _alloca */
#cmakedefine HAVE__ALLOCA ${HAVE__ALLOCA}
diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt
index 5c656164e771..ddc4d2324a05 100644
--- a/llvm/lib/Support/CMakeLists.txt
+++ b/llvm/lib/Support/CMakeLists.txt
@@ -1,7 +1,7 @@
-if(LLVM_ENABLE_ZLIB)
- set(imported_libs ZLIB::ZLIB)
+set(system_libs)
+if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ )
+ set(system_libs ${system_libs} ${ZLIB_LIBRARIES})
endif()
-
if( MSVC OR MINGW )
# libuuid required for FOLDERID_Profile usage in lib/Support/Windows/Path.inc.
# advapi32 required for CryptAcquireContextW in lib/Support/Windows/Path.inc.
@@ -186,31 +186,10 @@ add_llvm_component_library(LLVMSupport
${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
${LLVM_MAIN_INCLUDE_DIR}/llvm/Support
${Backtrace_INCLUDE_DIRS}
- LINK_LIBS ${system_libs} ${imported_libs} ${delayload_flags} ${Z3_LINK_FILES}
+ LINK_LIBS ${system_libs} ${delayload_flags} ${Z3_LINK_FILES}
)
-set(llvm_system_libs ${system_libs})
-
-if(LLVM_ENABLE_ZLIB)
- string(TOUPPER ${CMAKE_BUILD_TYPE} build_type)
- get_property(zlib_library TARGET ZLIB::ZLIB PROPERTY LOCATION_${build_type})
- if(NOT zlib_library)
- get_property(zlib_library TARGET ZLIB::ZLIB PROPERTY LOCATION)
- endif()
- get_filename_component(zlib_library ${zlib_library} NAME)
- if(CMAKE_STATIC_LIBRARY_PREFIX AND
- zlib_library MATCHES "^${CMAKE_STATIC_LIBRARY_PREFIX}.*${CMAKE_STATIC_LIBRARY_SUFFIX}$")
- STRING(REGEX REPLACE "^${CMAKE_STATIC_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
- STRING(REGEX REPLACE "${CMAKE_STATIC_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
- elseif(CMAKE_SHARED_LIBRARY_PREFIX AND
- zlib_library MATCHES "^${CMAKE_SHARED_LIBRARY_PREFIX}.*${CMAKE_SHARED_LIBRARY_SUFFIX}$")
- STRING(REGEX REPLACE "^${CMAKE_SHARED_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
- STRING(REGEX REPLACE "${CMAKE_SHARED_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
- endif()
- set(llvm_system_libs ${llvm_system_libs} "${zlib_library}")
-endif()
-
-set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${llvm_system_libs}")
+set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${system_libs}")
if(LLVM_WITH_Z3)
target_include_directories(LLVMSupport SYSTEM
diff --git a/llvm/lib/Support/CRC.cpp b/llvm/lib/Support/CRC.cpp
index 2bc668beed32..7ff09debe3b7 100644
--- a/llvm/lib/Support/CRC.cpp
+++ b/llvm/lib/Support/CRC.cpp
@@ -25,7 +25,7 @@
using namespace llvm;
-#if !LLVM_ENABLE_ZLIB
+#if LLVM_ENABLE_ZLIB == 0 || !HAVE_ZLIB_H
static const uint32_t CRCTable[256] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
diff --git a/llvm/lib/Support/Compression.cpp b/llvm/lib/Support/Compression.cpp
index 4165a2740cd0..97d5ffaadf82 100644
--- a/llvm/lib/Support/Compression.cpp
+++ b/llvm/lib/Support/Compression.cpp
@@ -17,13 +17,13 @@
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
-#if LLVM_ENABLE_ZLIB
+#if LLVM_ENABLE_ZLIB == 1 && HAVE_ZLIB_H
#include <zlib.h>
#endif
using namespace llvm;
-#if LLVM_ENABLE_ZLIB
+#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
static Error createError(StringRef Err) {
return make_error<StringError>(Err, inconvertibleErrorCode());
}
diff --git a/llvm/test/CMakeLists.txt b/llvm/test/CMakeLists.txt
index e15dbb11e754..38eed78f8aea 100644
--- a/llvm/test/CMakeLists.txt
+++ b/llvm/test/CMakeLists.txt
@@ -1,12 +1,12 @@
llvm_canonicalize_cmake_booleans(
BUILD_SHARED_LIBS
HAVE_LIBXAR
+ HAVE_LIBZ
HAVE_OCAMLOPT
HAVE_OCAML_OUNIT
LLVM_ENABLE_DIA_SDK
LLVM_ENABLE_FFI
LLVM_ENABLE_THREADS
- LLVM_ENABLE_ZLIB
LLVM_INCLUDE_GO_TESTS
LLVM_LIBXML2_ENABLED
LLVM_LINK_LLVM_DYLIB
diff --git a/llvm/test/lit.site.cfg.py.in b/llvm/test/lit.site.cfg.py.in
index b872a8a0a6ed..6f4d5f790828 100644
--- a/llvm/test/lit.site.cfg.py.in
+++ b/llvm/test/lit.site.cfg.py.in
@@ -33,7 +33,7 @@ config.host_cxx = "@HOST_CXX@"
config.host_ldflags = '@HOST_LDFLAGS@'
config.llvm_use_intel_jitevents = @LLVM_USE_INTEL_JITEVENTS@
config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
-config.have_zlib = @LLVM_ENABLE_ZLIB@
+config.have_zlib = @HAVE_LIBZ@
config.have_libxar = @HAVE_LIBXAR@
config.have_dia_sdk = @LLVM_ENABLE_DIA_SDK@
config.enable_ffi = @LLVM_ENABLE_FFI@
diff --git a/llvm/unittests/Support/CompressionTest.cpp b/llvm/unittests/Support/CompressionTest.cpp
index 51723898e950..cc7be431b62b 100644
--- a/llvm/unittests/Support/CompressionTest.cpp
+++ b/llvm/unittests/Support/CompressionTest.cpp
@@ -21,7 +21,7 @@ using namespace llvm;
namespace {
-#if LLVM_ENABLE_ZLIB
+#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
void TestZlibCompression(StringRef Input, int Level) {
SmallString<32> Compressed;
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