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Recommit "[clang][Fuchsia] Add relative-vtables multilib" 

This recommits fdbd84c6c8 whose initial
build issues were fixed in 19bdc8e5a3.
This commit is contained in:
Leonard Chan 2020-12-01 16:59:04 -08:00
parent b6b0a80eb9
commit 1e91803c67
7 changed files with 37 additions and 1 deletions
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12
clang/cmake/caches/Fuchsia-stage2.cmake
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@ -211,14 +211,24 @@ if(FUCHSIA_SDK)
set(RUNTIMES_${target}-unknown-fuchsia+asan+noexcept_LIBCXXABI_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
set(RUNTIMES_${target}-unknown-fuchsia+asan+noexcept_LIBCXX_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
set(RUNTIMES_${target}-unknown-fuchsia+relative-vtables_LLVM_BUILD_COMPILER_RT OFF CACHE BOOL "")
set(RUNTIMES_${target}-unknown-fuchsia+relative-vtables_CMAKE_CXX_FLAGS "${RUNTIMES_${target}-unknown-fuchsia+relative-vtables_CMAKE_CXX_FLAGS} -Xclang -fexperimental-relative-c++-abi-vtables" CACHE STRING "")
set(RUNTIMES_${target}-unknown-fuchsia+relative-vtables+noexcept_LLVM_BUILD_COMPILER_RT OFF CACHE BOOL "")
set(RUNTIMES_${target}-unknown-fuchsia+relative-vtables+noexcept_CMAKE_CXX_FLAGS "${RUNTIMES_${target}-unknown-fuchsia+relative-vtables+noexcept_CMAKE_CXX_FLAGS} -Xclang -fexperimental-relative-c++-abi-vtables" CACHE STRING "")
set(RUNTIMES_${target}-unknown-fuchsia+relative-vtables+noexcept_LIBCXXABI_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
set(RUNTIMES_${target}-unknown-fuchsia+relative-vtables+noexcept_LIBCXX_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
# Use .build-id link.
list(APPEND RUNTIME_BUILD_ID_LINK "${target}-unknown-fuchsia")
endforeach()
set(LLVM_RUNTIME_MULTILIBS "asan;noexcept;asan+noexcept" CACHE STRING "")
set(LLVM_RUNTIME_MULTILIBS "asan;noexcept;asan+noexcept;relative-vtables;relative-vtables+noexcept" CACHE STRING "")
set(LLVM_RUNTIME_MULTILIB_asan_TARGETS "x86_64-unknown-fuchsia;aarch64-unknown-fuchsia" CACHE STRING "")
set(LLVM_RUNTIME_MULTILIB_noexcept_TARGETS "x86_64-unknown-fuchsia;aarch64-unknown-fuchsia" CACHE STRING "")
set(LLVM_RUNTIME_MULTILIB_asan+noexcept_TARGETS "x86_64-unknown-fuchsia;aarch64-unknown-fuchsia" CACHE STRING "")
set(LLVM_RUNTIME_MULTILIB_relative-vtables_TARGETS "x86_64-unknown-fuchsia;aarch64-unknown-fuchsia" CACHE STRING "")
set(LLVM_RUNTIME_MULTILIB_relative-vtables+noexcept_TARGETS "x86_64-unknown-fuchsia;aarch64-unknown-fuchsia" CACHE STRING "")
endif()
set(LLVM_BUILTIN_TARGETS "${BUILTIN_TARGETS}" CACHE STRING "")

14
clang/lib/Driver/ToolChains/Fuchsia.cpp
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@ -210,6 +210,13 @@ Fuchsia::Fuchsia(const Driver &D, const llvm::Triple &Triple,
.flag("+fsanitize=address")
.flag("-fexceptions")
.flag("+fno-exceptions"));
// Use the relative vtables ABI.
Multilibs.push_back(Multilib("relative-vtables", {}, {}, 4)
.flag("+fexperimental-relative-c++-abi-vtables"));
Multilibs.push_back(Multilib("relative-vtables+noexcept", {}, {}, 5)
.flag("+fexperimental-relative-c++-abi-vtables")
.flag("-fexceptions")
.flag("+fno-exceptions"));
Multilibs.FilterOut([&](const Multilib &M) {
std::vector<std::string> RD = FilePaths(M);
return std::all_of(RD.begin(), RD.end(), [&](std::string P) {
@ -222,6 +229,13 @@ Fuchsia::Fuchsia(const Driver &D, const llvm::Triple &Triple,
Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, true),
"fexceptions", Flags);
addMultilibFlag(getSanitizerArgs().needsAsanRt(), "fsanitize=address", Flags);
addMultilibFlag(
Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables,
options::OPT_fno_experimental_relative_cxx_abi_vtables,
/*default=*/false),
"fexperimental-relative-c++-abi-vtables", Flags);
Multilibs.setFilePathsCallback(FilePaths);
if (Multilibs.select(Flags, SelectedMultilib))

0
clang/test/Driver/Inputs/basic_fuchsia_tree/lib/aarch64-fuchsia/c++/relative-vtables+noexcept/libc++.so Normal file
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0
clang/test/Driver/Inputs/basic_fuchsia_tree/lib/aarch64-fuchsia/c++/relative-vtables/libc++.so Normal file
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0
clang/test/Driver/Inputs/basic_fuchsia_tree/lib/x86_64-fuchsia/c++/relative-vtables+noexcept/libc++.so Normal file
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0
clang/test/Driver/Inputs/basic_fuchsia_tree/lib/x86_64-fuchsia/c++/relative-vtables/libc++.so Normal file
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12
clang/test/Driver/fuchsia.cpp
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@ -86,8 +86,20 @@
// RUN: -resource-dir=%S/Inputs/resource_dir_with_per_target_subdir \
// RUN: -fuse-ld=lld 2>&1\
// RUN: | FileCheck %s -check-prefixes=CHECK-MULTILIB-X86,CHECK-MULTILIB-ASAN-NOEXCEPT-X86
// RUN: %clangxx %s -### --target=x86_64-fuchsia -fexperimental-relative-c++-abi-vtables \
// RUN: -ccc-install-dir %S/Inputs/basic_fuchsia_tree/bin \
// RUN: -resource-dir=%S/Inputs/resource_dir_with_per_target_subdir \
// RUN: -fuse-ld=lld 2>&1\
// RUN: | FileCheck %s -check-prefixes=CHECK-MULTILIB-X86,CHECK-MULTILIB-RELATIVE-VTABLES-X86
// RUN: %clangxx %s -### --target=x86_64-fuchsia -fexperimental-relative-c++-abi-vtables -fno-exceptions \
// RUN: -ccc-install-dir %S/Inputs/basic_fuchsia_tree/bin \
// RUN: -resource-dir=%S/Inputs/resource_dir_with_per_target_subdir \
// RUN: -fuse-ld=lld 2>&1\
// RUN: | FileCheck %s -check-prefixes=CHECK-MULTILIB-X86,CHECK-MULTILIB-RELATIVE-VTABLES-NOEXCEPT-X86
// CHECK-MULTILIB-X86: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
// CHECK-MULTILIB-ASAN-X86: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}lib{{/|\\\\}}x86_64-fuchsia{{/|\\\\}}c++{{/|\\\\}}asan"
// CHECK-MULTILIB-NOEXCEPT-X86: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}lib{{/|\\\\}}x86_64-fuchsia{{/|\\\\}}c++{{/|\\\\}}noexcept"
// CHECK-MULTILIB-ASAN-NOEXCEPT-X86: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}lib{{/|\\\\}}x86_64-fuchsia{{/|\\\\}}c++{{/|\\\\}}asan+noexcept"
// CHECK-MULTILIB-RELATIVE-VTABLES-X86: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}lib{{/|\\\\}}x86_64-fuchsia{{/|\\\\}}c++{{/|\\\\}}relative-vtables"
// CHECK-MULTILIB-RELATIVE-VTABLES-NOEXCEPT-X86: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}lib{{/|\\\\}}x86_64-fuchsia{{/|\\\\}}c++{{/|\\\\}}relative-vtables+noexcept"
// CHECK-MULTILIB-X86: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}lib{{/|\\\\}}x86_64-fuchsia{{/|\\\\}}c++"