[libcxx-commits] [libcxxabi] ecf313c - [libc++] Fix the no-exceptions build of libc++ on Apple
Louis Dionne via libcxx-commits
libcxx-commits at lists.llvm.org
Mon Apr 20 07:45:37 PDT 2020
Author: Louis Dionne
Date: 2020-04-20T10:45:14-04:00
New Revision: ecf313c01ddefb8191d87e516586c37f84862837
URL: https://github.com/llvm/llvm-project/commit/ecf313c01ddefb8191d87e516586c37f84862837
DIFF: https://github.com/llvm/llvm-project/commit/ecf313c01ddefb8191d87e516586c37f84862837.diff
LOG: [libc++] Fix the no-exceptions build of libc++ on Apple
We previously tried re-exporting symbols that didn't exist when
exceptions were disabled. Note that building libc++abi without
exceptions still doesn't work when linking against the default-provided
libSystem.dylib, because it transitively depends on libobjc.dylib,
and that requires __gxx_personality_v0. But building libc++abi
with exceptions and libc++ without exceptions does work.
Added:
libcxx/lib/libc++abi-exceptions.exp
libcxx/lib/libc++abi-exceptions.sjlj.exp
libcxxabi/lib/exceptions.exp
Modified:
libcxx/lib/abi/CMakeLists.txt
libcxx/lib/libc++abi.v1.exp
libcxx/lib/libc++abi.v2.exp
libcxx/src/CMakeLists.txt
libcxxabi/lib/itanium-base.exp
libcxxabi/src/CMakeLists.txt
Removed:
libcxx/lib/libc++sjlj-abi.v1.exp
libcxx/lib/libc++sjlj-abi.v2.exp
################################################################################
diff --git a/libcxx/lib/abi/CMakeLists.txt b/libcxx/lib/abi/CMakeLists.txt
index bb9217f88472..0fa3aacfb0e2 100644
--- a/libcxx/lib/abi/CMakeLists.txt
+++ b/libcxx/lib/abi/CMakeLists.txt
@@ -21,7 +21,8 @@ if (EXISTS "${ABILIST_FILE}"
AND TARGET cxx_shared
AND ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxabi" OR
(APPLE AND "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "default"))
- AND NOT LIBCXX_ABI_UNSTABLE)
+ AND NOT LIBCXX_ABI_UNSTABLE
+ AND LIBCXX_ENABLE_EXCEPTIONS)
add_custom_target(check-cxx-abilist
${SYMDIFF_EXE} --only-stdlib-symbols --strict ${ABILIST_FILE}
$<TARGET_SONAME_FILE:cxx_shared>
diff --git a/libcxx/lib/libc++abi-exceptions.exp b/libcxx/lib/libc++abi-exceptions.exp
new file mode 100644
index 000000000000..600a65ffead2
--- /dev/null
+++ b/libcxx/lib/libc++abi-exceptions.exp
@@ -0,0 +1,10 @@
+___cxa_allocate_exception
+___cxa_begin_catch
+___cxa_call_unexpected
+___cxa_current_exception_type
+___cxa_end_catch
+___cxa_free_exception
+___cxa_get_exception_ptr
+___cxa_rethrow
+___cxa_throw
+___gxx_personality_v0
diff --git a/libcxx/lib/libc++abi-exceptions.sjlj.exp b/libcxx/lib/libc++abi-exceptions.sjlj.exp
new file mode 100644
index 000000000000..10073d615c24
--- /dev/null
+++ b/libcxx/lib/libc++abi-exceptions.sjlj.exp
@@ -0,0 +1,10 @@
+___cxa_allocate_exception
+___cxa_begin_catch
+___cxa_call_unexpected
+___cxa_current_exception_type
+___cxa_end_catch
+___cxa_free_exception
+___cxa_get_exception_ptr
+___cxa_rethrow
+___cxa_throw
+___gxx_personality_sj0
diff --git a/libcxx/lib/libc++abi.v1.exp b/libcxx/lib/libc++abi.v1.exp
index 879b4dd141e5..c245b17a9053 100644
--- a/libcxx/lib/libc++abi.v1.exp
+++ b/libcxx/lib/libc++abi.v1.exp
@@ -1,20 +1,11 @@
-___cxa_allocate_exception
-___cxa_end_catch
___cxa_demangle
-___cxa_current_exception_type
-___cxa_call_unexpected
-___cxa_free_exception
-___cxa_get_exception_ptr
___cxa_get_globals
___cxa_get_globals_fast
___cxa_guard_abort
___cxa_guard_acquire
___cxa_guard_release
-___cxa_rethrow
___cxa_pure_virtual
___cxa_deleted_virtual
-___cxa_begin_catch
-___cxa_throw
___cxa_vec_cctor
___cxa_vec_cleanup
___cxa_vec_ctor
@@ -26,7 +17,6 @@ ___cxa_vec_new
___cxa_vec_new2
___cxa_vec_new3
___dynamic_cast
-___gxx_personality_v0
__ZTIDi
__ZTIDn
__ZTIDs
diff --git a/libcxx/lib/libc++abi.v2.exp b/libcxx/lib/libc++abi.v2.exp
index dfc308f8010e..6a3e6b9f0222 100644
--- a/libcxx/lib/libc++abi.v2.exp
+++ b/libcxx/lib/libc++abi.v2.exp
@@ -1,20 +1,11 @@
-___cxa_allocate_exception
-___cxa_end_catch
___cxa_demangle
-___cxa_current_exception_type
-___cxa_call_unexpected
-___cxa_free_exception
-___cxa_get_exception_ptr
___cxa_get_globals
___cxa_get_globals_fast
___cxa_guard_abort
___cxa_guard_acquire
___cxa_guard_release
-___cxa_rethrow
___cxa_pure_virtual
___cxa_deleted_virtual
-___cxa_begin_catch
-___cxa_throw
___cxa_throw_bad_array_new_length
___cxa_uncaught_exceptions
___cxa_vec_cctor
@@ -28,7 +19,6 @@ ___cxa_vec_new
___cxa_vec_new2
___cxa_vec_new3
___dynamic_cast
-___gxx_personality_v0
__ZTIDi
__ZTIDn
__ZTIDs
diff --git a/libcxx/lib/libc++sjlj-abi.v1.exp b/libcxx/lib/libc++sjlj-abi.v1.exp
deleted file mode 100644
index f494e17cfdee..000000000000
--- a/libcxx/lib/libc++sjlj-abi.v1.exp
+++ /dev/null
@@ -1,160 +0,0 @@
-___cxa_allocate_exception
-___cxa_end_catch
-___cxa_demangle
-___cxa_current_exception_type
-___cxa_call_unexpected
-___cxa_free_exception
-___cxa_get_exception_ptr
-___cxa_get_globals
-___cxa_get_globals_fast
-___cxa_guard_abort
-___cxa_guard_acquire
-___cxa_guard_release
-___cxa_rethrow
-___cxa_pure_virtual
-___cxa_deleted_virtual
-___cxa_begin_catch
-___cxa_throw
-___cxa_vec_cctor
-___cxa_vec_cleanup
-___cxa_vec_ctor
-___cxa_vec_delete
-___cxa_vec_delete2
-___cxa_vec_delete3
-___cxa_vec_dtor
-___cxa_vec_new
-___cxa_vec_new2
-___cxa_vec_new3
-___dynamic_cast
-___gxx_personality_sj0
-__ZTIDi
-__ZTIDn
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-__ZTIPKy
-__ZTIPa
-__ZTIPb
-__ZTIPc
-__ZTIPd
-__ZTIPe
-__ZTIPf
-__ZTIPh
-__ZTVN10__cxxabiv129__pointer_to_member_type_infoE
-__ZTVN10__cxxabiv116__enum_type_infoE
-__ZTVN10__cxxabiv117__array_type_infoE
-__ZTVN10__cxxabiv117__class_type_infoE
-__ZTVN10__cxxabiv117__pbase_type_infoE
-__ZTVN10__cxxabiv119__pointer_type_infoE
-__ZTVN10__cxxabiv120__function_type_infoE
-__ZTVN10__cxxabiv120__si_class_type_infoE
-__ZTVN10__cxxabiv121__vmi_class_type_infoE
-__ZTVN10__cxxabiv123__fundamental_type_infoE
-__ZTIa
-__ZTIb
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-__ZTSN10__cxxabiv117__pbase_type_infoE
-__ZTSN10__cxxabiv117__class_type_infoE
-__ZTSN10__cxxabiv117__array_type_infoE
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-__ZTIy
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diff --git a/libcxx/lib/libc++sjlj-abi.v2.exp b/libcxx/lib/libc++sjlj-abi.v2.exp
deleted file mode 100644
index 24f53e828353..000000000000
--- a/libcxx/lib/libc++sjlj-abi.v2.exp
+++ /dev/null
@@ -1,310 +0,0 @@
-___cxa_allocate_exception
-___cxa_end_catch
-___cxa_demangle
-___cxa_current_exception_type
-___cxa_call_unexpected
-___cxa_free_exception
-___cxa_get_exception_ptr
-___cxa_get_globals
-___cxa_get_globals_fast
-___cxa_guard_abort
-___cxa_guard_acquire
-___cxa_guard_release
-___cxa_rethrow
-___cxa_pure_virtual
-___cxa_begin_catch
-___cxa_throw
-___cxa_vec_cctor
-___cxa_vec_cleanup
-___cxa_vec_ctor
-___cxa_vec_delete
-___cxa_vec_delete2
-___cxa_vec_delete3
-___cxa_vec_dtor
-___cxa_vec_new
-___cxa_vec_new2
-___cxa_vec_new3
-___dynamic_cast
-___gxx_personality_sj0
-__ZTIDi
-__ZTIDn
-__ZTIDs
-__ZTIPDi
-__ZTIPDn
-__ZTIPDs
-__ZTIPKDi
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-__ZTVN10__cxxabiv119__pointer_type_infoE
-__ZTVN10__cxxabiv120__function_type_infoE
-__ZTVN10__cxxabiv120__si_class_type_infoE
-__ZTVN10__cxxabiv121__vmi_class_type_infoE
-__ZTVN10__cxxabiv123__fundamental_type_infoE
-__ZTIa
-__ZTIb
-__ZTIc
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-__ZTIt
-__ZTSN10__cxxabiv129__pointer_to_member_type_infoE
-__ZTSN10__cxxabiv123__fundamental_type_infoE
-__ZTSN10__cxxabiv121__vmi_class_type_infoE
-__ZTSN10__cxxabiv120__si_class_type_infoE
-__ZTSN10__cxxabiv120__function_type_infoE
-__ZTSN10__cxxabiv119__pointer_type_infoE
-__ZTSN10__cxxabiv117__pbase_type_infoE
-__ZTSN10__cxxabiv117__class_type_infoE
-__ZTSN10__cxxabiv117__array_type_infoE
-__ZTSN10__cxxabiv116__enum_type_infoE
-__ZTIy
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-__ZSt13set_terminatePFvvE
-__ZSt14get_unexpectedv
-__ZSt14set_unexpectedPFvvE
-__ZSt15get_new_handlerv
-__ZSt15set_new_handlerPFvvE
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-__ZTISt9bad_alloc
-__ZNSt9bad_allocC1Ev
-__ZTISt13bad_exception
-__ZTVSt10bad_typeid
-__ZTVSt9exception
-__ZNSt10bad_typeidC1Ev
-__ZNSt10bad_typeidC1Ev
-__ZNKSt10bad_typeid4whatEv
-__ZNSt10bad_typeidD1Ev
-__ZTVSt8bad_cast
-__ZNSt8bad_castC1Ev
-__ZNSt8bad_castC2Ev
-__ZNSt8bad_castD0Ev
-__ZNKSt8bad_cast4whatEv
-__ZNSt8bad_castD1Ev
-__ZNSt8bad_castD2Ev
-__ZTVSt9bad_alloc
-__ZTVSt20bad_array_new_length
-__ZTVSt13bad_exception
-__ZNKSt9exception4whatEv
-__ZNKSt9bad_alloc4whatEv
-__ZNSt9bad_allocC2Ev
-__ZNSt9bad_allocD0Ev
-__ZNSt9bad_allocD2Ev
-__ZNSt9exceptionD0Ev
-__ZNSt20bad_array_new_lengthC1Ev
-__ZNKSt13bad_exception4whatEv
-__ZNSt9exceptionD1Ev
-__ZNKSt20bad_array_new_length4whatEv
-__ZNSt13bad_exceptionD1Ev
-__ZNSt20bad_array_new_lengthD1Ev
-__ZNSt9exceptionD2Ev
-__ZNSt9type_infoD0Ev
-__ZNSt9type_infoD1Ev
-__ZNSt9type_infoD2Ev
-__ZNSt10bad_typeidC2Ev
-__ZNSt10bad_typeidD0Ev
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-__ZNSt20bad_array_new_lengthD0Ev
-__ZNSt20bad_array_new_lengthD2Ev
-__ZSt10unexpectedv
- __ZdaPv
- __ZdlPv
- __ZdlPvRKSt9nothrow_t
- __Znam
- __ZdaPvRKSt9nothrow_t
- __Znwm
- __ZnwmRKSt9nothrow_t
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-
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-__ZNSt11logic_errorD1Ev
-__ZNSt11logic_errorD2Ev
-__ZTISt11logic_error
-__ZTSSt11logic_error
-__ZTVSt11logic_error
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-__ZNSt13runtime_errorD0Ev
-__ZNSt13runtime_errorD1Ev
-__ZNSt13runtime_errorD2Ev
-__ZTISt13runtime_error
-__ZTSSt13runtime_error
-__ZTVSt13runtime_error
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-__ZNSt11range_errorD1Ev
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-__ZTISt11range_error
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-__ZNSt12domain_errorD1Ev
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-__ZTVSt12domain_error
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-__ZNSt12length_errorD1Ev
-__ZNSt12length_errorD2Ev
-__ZTISt12length_error
-__ZTSSt12length_error
-__ZTVSt12length_error
-
-__ZNSt12out_of_rangeD0Ev
-__ZNSt12out_of_rangeD1Ev
-__ZNSt12out_of_rangeD2Ev
-__ZTISt12out_of_range
-__ZTSSt12out_of_range
-__ZTVSt12out_of_range
-
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-__ZNSt14overflow_errorD1Ev
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-__ZTISt14overflow_error
-__ZTSSt14overflow_error
-__ZTVSt14overflow_error
-
-__ZNSt15underflow_errorD0Ev
-__ZNSt15underflow_errorD1Ev
-__ZNSt15underflow_errorD2Ev
-__ZTISt15underflow_error
-__ZTSSt15underflow_error
-__ZTVSt15underflow_error
-
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-__ZNSt16invalid_argumentD1Ev
-__ZNSt16invalid_argumentD2Ev
-__ZTISt16invalid_argument
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diff --git a/libcxx/src/CMakeLists.txt b/libcxx/src/CMakeLists.txt
index 6b801b4f1492..b55946f6cac3 100644
--- a/libcxx/src/CMakeLists.txt
+++ b/libcxx/src/CMakeLists.txt
@@ -205,17 +205,20 @@ if (LIBCXX_ENABLE_SHARED)
endif()
if (LIBCXX_OSX_REEXPORT_LIBCXXABI_SYMBOLS)
- if ("${CMAKE_OSX_ARCHITECTURES}" MATCHES "^(armv6|armv7|armv7s)$")
- set(RE_EXPORT_LIST "${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++sjlj-abi.v${LIBCXX_LIBCPPABI_VERSION}.exp")
- else()
- set(RE_EXPORT_LIST "${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++abi.v${LIBCXX_LIBCPPABI_VERSION}.exp")
- endif()
target_link_libraries(cxx_shared PRIVATE
"-Wl,-unexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++unexp.exp"
- "-Wl,-reexported_symbols_list,${RE_EXPORT_LIST}"
+ "-Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++abi.v${LIBCXX_LIBCPPABI_VERSION}.exp"
"-Wl,-force_symbols_not_weak_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/notweak.exp"
"-Wl,-force_symbols_weak_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/weak.exp")
+ if (LIBCXX_ENABLE_EXCEPTIONS)
+ if ("${CMAKE_OSX_ARCHITECTURES}" MATCHES "^(armv6|armv7|armv7s)$")
+ target_link_libraries(cxx_shared PRIVATE "-Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++abi-exceptions.sjlj.exp")
+ else()
+ target_link_libraries(cxx_shared PRIVATE "-Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++abi-exceptions.exp")
+ endif()
+ endif()
+
if (NOT LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS)
target_link_libraries(cxx_shared PRIVATE "-Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/libc++abi-new-delete.exp")
endif()
diff --git a/libcxxabi/lib/exceptions.exp b/libcxxabi/lib/exceptions.exp
new file mode 100644
index 000000000000..c3780d297490
--- /dev/null
+++ b/libcxxabi/lib/exceptions.exp
@@ -0,0 +1,11 @@
+___cxa_allocate_dependent_exception
+___cxa_allocate_exception
+___cxa_begin_catch
+___cxa_call_unexpected
+___cxa_current_exception_type
+___cxa_end_catch
+___cxa_free_dependent_exception
+___cxa_free_exception
+___cxa_get_exception_ptr
+___cxa_rethrow
+___cxa_throw
diff --git a/libcxxabi/lib/itanium-base.exp b/libcxxabi/lib/itanium-base.exp
index c08c711f7cfc..1b14cb8fba17 100644
--- a/libcxxabi/lib/itanium-base.exp
+++ b/libcxxabi/lib/itanium-base.exp
@@ -245,22 +245,13 @@ __ZTVSt9bad_alloc
__ZTVSt9exception
__ZTVSt9type_info
-# Itanium C++ ABI requirements
-___cxa_allocate_dependent_exception
-___cxa_allocate_exception
+# Itanium C++ ABI requirements (minus most exception support)
___cxa_bad_cast
___cxa_bad_typeid
-___cxa_begin_catch
-___cxa_call_unexpected
-___cxa_current_exception_type
___cxa_current_primary_exception
___cxa_decrement_exception_refcount
___cxa_deleted_virtual
___cxa_demangle
-___cxa_end_catch
-___cxa_free_dependent_exception
-___cxa_free_exception
-___cxa_get_exception_ptr
___cxa_get_globals
___cxa_get_globals_fast
___cxa_guard_abort
@@ -268,9 +259,7 @@ ___cxa_guard_acquire
___cxa_guard_release
___cxa_increment_exception_refcount
___cxa_pure_virtual
-___cxa_rethrow
___cxa_rethrow_primary_exception
-___cxa_throw
___cxa_throw_bad_array_new_length
___cxa_uncaught_exception
___cxa_uncaught_exceptions
diff --git a/libcxxabi/src/CMakeLists.txt b/libcxxabi/src/CMakeLists.txt
index 44aa6384e0b7..8e88416279ea 100644
--- a/libcxxabi/src/CMakeLists.txt
+++ b/libcxxabi/src/CMakeLists.txt
@@ -146,12 +146,6 @@ if (NOT TARGET pstl::ParallelSTL)
message(STATUS "Could not find ParallelSTL, libc++abi will not attempt to use it but the build may fail if the libc++ in use needs it to be available.")
endif()
-if ("${CMAKE_OSX_ARCHITECTURES}" MATCHES "^(armv6|armv7|armv7s)$")
- set(LIBCXXABI_USE_SJLJ_EXCEPTIONS ON)
-else()
- set(LIBCXXABI_USE_SJLJ_EXCEPTIONS OFF)
-endif()
-
# Build the shared library.
if (LIBCXXABI_ENABLE_SHARED)
add_library(cxxabi_shared SHARED ${LIBCXXABI_SOURCES} ${LIBCXXABI_HEADERS})
@@ -200,10 +194,14 @@ if (LIBCXXABI_ENABLE_SHARED)
target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/new-delete.exp")
endif()
- if (LIBCXXABI_USE_SJLJ_EXCEPTIONS)
- target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/personality-sjlj.exp")
- else()
- target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/personality-v0.exp")
+ if (LIBCXXABI_ENABLE_EXCEPTIONS)
+ target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/exceptions.exp")
+
+ if ("${CMAKE_OSX_ARCHITECTURES}" MATCHES "^(armv6|armv7|armv7s)$")
+ target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/personality-sjlj.exp")
+ else()
+ target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/../lib/personality-v0.exp")
+ endif()
endif()
endif()
endif()
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