git: da77a1b4f0df - main - libcxxrt: don't export nonexistant symbols
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Date: Tue, 16 Apr 2024 21:14:49 UTC
The branch main has been updated by brooks:
URL: https://cgit.FreeBSD.org/src/commit/?id=da77a1b4f0dffcafee3675375ec71e9ab8319daa
commit da77a1b4f0dffcafee3675375ec71e9ab8319daa
Author: Brooks Davis <brooks@FreeBSD.org>
AuthorDate: 2024-04-16 17:04:16 +0000
Commit: Brooks Davis <brooks@FreeBSD.org>
CommitDate: 2024-04-16 21:14:21 +0000
libcxxrt: don't export nonexistant symbols
Remove version entries that we don't build.
Add an arm specific Version.map and for other targets run the files
through sed to handle int vs long in new and delete.
Ideally we'd use the SYMBOL_MAPS functionality to preprocess with cpp,
but it doesn't currently handle C++ symbols so be annoyingly duplicative
for now.
Differential Revision: https://reviews.freebsd.org/D44325
---
lib/libcxxrt/Makefile | 18 ++-
lib/libcxxrt/Version.map | 47 +-----
lib/libcxxrt/Version.map.arm | 362 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 384 insertions(+), 43 deletions(-)
diff --git a/lib/libcxxrt/Makefile b/lib/libcxxrt/Makefile
index 48a724dd42f2..57f41e9bf59b 100644
--- a/lib/libcxxrt/Makefile
+++ b/lib/libcxxrt/Makefile
@@ -1,3 +1,4 @@
+.include <bsd.own.mk>
PACKAGE= clibs
SRCDIR= ${SRCTOP}/contrib/libcxxrt
@@ -22,6 +23,21 @@ SRCS+= typeinfo.cc
WARNS?= 0
CFLAGS+= -isystem ${SRCDIR} -nostdinc++
CXXSTD?= c++14
-VERSION_MAP= ${.CURDIR}/Version.map
+
+.if exists(Version.map.${MACHINE})
+VERSION_MAP= ${.CURDIR}/Version.map.${MACHINE}
+.else
+.if ${MACHINE_ABI:Mlong32}
+VERSION_MAP= Version-32.map
+.else
+VERSION_MAP= Version-64.map
+.endif
+
+Version-32.map: Version.map
+ sed 's/%%NEW_DELETE_TYPE%%/int/' ${.ALLSRC} > ${.TARGET}
+
+Version-64.map: Version.map
+ sed 's/%%NEW_DELETE_TYPE%%/long/' ${.ALLSRC} > ${.TARGET}
+.endif
.include <bsd.lib.mk>
diff --git a/lib/libcxxrt/Version.map b/lib/libcxxrt/Version.map
index a54b6a4daad5..012026079e33 100644
--- a/lib/libcxxrt/Version.map
+++ b/lib/libcxxrt/Version.map
@@ -10,12 +10,10 @@ CXXABI_1.3 {
__cxa_bad_cast;
__cxa_bad_typeid;
__cxa_begin_catch;
- __cxa_begin_cleanup;
__cxa_call_unexpected;
__cxa_current_exception_type;
__cxa_demangle;
__cxa_end_catch;
- __cxa_end_cleanup;
__cxa_free_exception;
__cxa_get_globals;
__cxa_get_globals_fast;
@@ -26,42 +24,20 @@ CXXABI_1.3 {
__cxa_rethrow;
__cxa_throw;
__cxa_throw_bad_array_new_length;
- __cxa_type_match;
- __cxa_vec_cctor;
- __cxa_vec_cleanup;
- __cxa_vec_ctor;
- __cxa_vec_delete2;
- __cxa_vec_delete3;
- __cxa_vec_delete;
- __cxa_vec_dtor;
- __cxa_vec_new2;
- __cxa_vec_new3;
- __cxa_vec_new;
__dynamic_cast;
- __gxx_personality_sj0;
__gxx_personality_v0;
extern "C++" {
# Type info classes and their destructors
- "__cxxabiv1::__array_type_info";
"__cxxabiv1::__array_type_info::~__array_type_info()";
- "__cxxabiv1::__class_type_info";
"__cxxabiv1::__class_type_info::~__class_type_info()";
- "__cxxabiv1::__enum_type_info";
"__cxxabiv1::__enum_type_info::~__enum_type_info()";
- "__cxxabiv1::__function_type_info::";
"__cxxabiv1::__function_type_info::~__function_type_info()";
- "__cxxabiv1::__fundamental_type_info";
"__cxxabiv1::__fundamental_type_info::~__fundamental_type_info()";
- "__cxxabiv1::__pbase_type_info";
"__cxxabiv1::__pbase_type_info::~__pbase_type_info()";
- "__cxxabiv1::__pointer_to_member_type_info";
"__cxxabiv1::__pointer_to_member_type_info::~__pointer_to_member_type_info()";
- "__cxxabiv1::__pointer_type_info";
"__cxxabiv1::__pointer_type_info::~__pointer_type_info()";
- "__cxxabiv1::__si_class_type_info";
"__cxxabiv1::__si_class_type_info::~__si_class_type_info()";
- "__cxxabiv1::__vmi_class_type_info";
"__cxxabiv1::__vmi_class_type_info::~__vmi_class_type_info()";
# vtables typeinfo classes.
@@ -224,10 +200,6 @@ CXXABI_1.3 {
_ZTIDi;_ZTIPDi;_ZTIPKDi;
# char32_t
_ZTIDs;_ZTIPDs;_ZTIPKDs;
- # IEEE 754r decimal floating point
- _ZTIDd;_ZTIPDd;_ZTIPKDd;
- _ZTIDe;_ZTIPDe;_ZTIPKDe;
- _ZTIDf;_ZTIPDf;_ZTIPKDf;
# IEEE 754r half-precision floating point
_ZTIDh;_ZTIPDh;_ZTIPKDh;
@@ -238,10 +210,6 @@ CXXABI_1.3 {
_ZTSDi;_ZTSPDi;_ZTSPKDi;
# char32_t
_ZTSDs;_ZTSPDs;_ZTSPKDs;
- # IEEE 754r decimal floating point
- _ZTSDd;_ZTSPDd;_ZTSPKDd;
- _ZTSDe;_ZTSPDe;_ZTSPKDe;
- _ZTSDf;_ZTSPDf;_ZTSPKDf;
# IEEE 754r half-precision floating point
_ZTSDh;_ZTSPDh;_ZTSPKDh;
@@ -276,10 +244,8 @@ CXXABI_1.3.9 {
"typeinfo name for unsigned __int128 const*";
"typeinfo name for unsigned __int128";
"typeinfo name for unsigned __int128*";
- "operator delete[](void*, unsigned int)";
- "operator delete(void*, unsigned int)";
- "operator delete[](void*, unsigned long)";
- "operator delete(void*, unsigned long)";
+ "operator delete[](void*, unsigned %%NEW_DELETE_TYPE%%)";
+ "operator delete(void*, unsigned %%NEW_DELETE_TYPE%%)";
};
} CXXABI_1.3.6;
@@ -325,12 +291,9 @@ GLIBCXX_3.4 {
extern "C++" {
"operator delete[](void*)";
"operator delete(void*)";
- "operator new[](unsigned int)";
- "operator new(unsigned int)";
- "operator new(unsigned int, std::nothrow_t const&)";
- "operator new[](unsigned long)";
- "operator new(unsigned long)";
- "operator new(unsigned long, std::nothrow_t const&)";
+ "operator new[](unsigned %%NEW_DELETE_TYPE%%)";
+ "operator new(unsigned %%NEW_DELETE_TYPE%%)";
+ "operator new(unsigned %%NEW_DELETE_TYPE%%, std::nothrow_t const&)";
"std::unexpected()";
"std::get_terminate()";
diff --git a/lib/libcxxrt/Version.map.arm b/lib/libcxxrt/Version.map.arm
new file mode 100644
index 000000000000..bc4cf68a3654
--- /dev/null
+++ b/lib/libcxxrt/Version.map.arm
@@ -0,0 +1,362 @@
+# Define the same version as the libsupc++ from gcc 4.2.1 so that we can use
+# libcxxrt as a drop-in replacement.
+
+CXXABI_1.3 {
+
+ global:
+
+ # ABI functions with C linkage
+ __cxa_allocate_exception;
+ __cxa_bad_cast;
+ __cxa_bad_typeid;
+ __cxa_begin_catch;
+ __cxa_call_unexpected;
+ __cxa_current_exception_type;
+ __cxa_demangle;
+ __cxa_end_catch;
+ __cxa_end_cleanup;
+ __cxa_free_exception;
+ __cxa_get_globals;
+ __cxa_get_globals_fast;
+ __cxa_guard_abort;
+ __cxa_guard_acquire;
+ __cxa_guard_release;
+ __cxa_pure_virtual;
+ __cxa_rethrow;
+ __cxa_throw;
+ __cxa_throw_bad_array_new_length;
+ __dynamic_cast;
+ __gxx_personality_v0;
+
+ extern "C++" {
+ # Type info classes and their destructors
+ "__cxxabiv1::__array_type_info::~__array_type_info()";
+ "__cxxabiv1::__class_type_info::~__class_type_info()";
+ "__cxxabiv1::__enum_type_info::~__enum_type_info()";
+ "__cxxabiv1::__function_type_info::~__function_type_info()";
+ "__cxxabiv1::__fundamental_type_info::~__fundamental_type_info()";
+ "__cxxabiv1::__pbase_type_info::~__pbase_type_info()";
+ "__cxxabiv1::__pointer_to_member_type_info::~__pointer_to_member_type_info()";
+ "__cxxabiv1::__pointer_type_info::~__pointer_type_info()";
+ "__cxxabiv1::__si_class_type_info::~__si_class_type_info()";
+ "__cxxabiv1::__vmi_class_type_info::~__vmi_class_type_info()";
+
+ # vtables typeinfo classes.
+ "vtable for __cxxabiv1::__array_type_info";
+ "vtable for __cxxabiv1::__class_type_info";
+ "vtable for __cxxabiv1::__enum_type_info";
+ "vtable for __cxxabiv1::__function_type_info";
+ "vtable for __cxxabiv1::__fundamental_type_info";
+ "vtable for __cxxabiv1::__pbase_type_info";
+ "vtable for __cxxabiv1::__pointer_to_member_type_info";
+ "vtable for __cxxabiv1::__pointer_type_info";
+ "vtable for __cxxabiv1::__si_class_type_info";
+ "vtable for __cxxabiv1::__vmi_class_type_info";
+
+ # Type info for built-in types
+ "typeinfo for bool const*";
+ "typeinfo for bool";
+ "typeinfo for char const*";
+ "typeinfo for char";
+ "typeinfo for double const*";
+ "typeinfo for double";
+ "typeinfo for float const*";
+ "typeinfo for float";
+ "typeinfo for int const*";
+ "typeinfo for int";
+ "typeinfo for long const*";
+ "typeinfo for long double const*";
+ "typeinfo for long double";
+ "typeinfo for long long const*";
+ "typeinfo for long long";
+ "typeinfo for long";
+ "typeinfo for short const*";
+ "typeinfo for short";
+ "typeinfo for signed char const*";
+ "typeinfo for signed char";
+ "typeinfo for unsigned char const*";
+ "typeinfo for unsigned char";
+ "typeinfo for unsigned int const*";
+ "typeinfo for unsigned int";
+ "typeinfo for unsigned long const*";
+ "typeinfo for unsigned long long const*";
+ "typeinfo for unsigned long long";
+ "typeinfo for unsigned long";
+ "typeinfo for unsigned short const*";
+ "typeinfo for unsigned short";
+ "typeinfo for void const*";
+ "typeinfo for void";
+ "typeinfo for wchar_t const*";
+ "typeinfo for wchar_t";
+
+ "typeinfo for bool*";
+ "typeinfo for wchar_t*";
+ "typeinfo for short*";
+ "typeinfo for char*";
+ "typeinfo for unsigned char*";
+ "typeinfo for long long*";
+ "typeinfo for unsigned short*";
+ "typeinfo for long*";
+ "typeinfo for double*";
+ "typeinfo for unsigned long*";
+ "typeinfo for unsigned long long*";
+ "typeinfo for int*";
+ "typeinfo for long double*";
+ "typeinfo for signed char*";
+ "typeinfo for void*";
+ "typeinfo for unsigned int*";
+ "typeinfo for float*";
+
+ "typeinfo for __cxxabiv1::__array_type_info";
+ "typeinfo for __cxxabiv1::__class_type_info";
+ "typeinfo for __cxxabiv1::__enum_type_info";
+ "typeinfo for __cxxabiv1::__function_type_info";
+ "typeinfo for __cxxabiv1::__fundamental_type_info";
+ "typeinfo for __cxxabiv1::__pbase_type_info";
+ "typeinfo for __cxxabiv1::__pointer_to_member_type_info";
+ "typeinfo for __cxxabiv1::__pointer_type_info";
+ "typeinfo for __cxxabiv1::__si_class_type_info";
+ "typeinfo for __cxxabiv1::__vmi_class_type_info";
+
+ # Typeinfo names.
+
+ "typeinfo name for unsigned char const*";
+ "typeinfo name for long const*";
+ "typeinfo name for double const*";
+ "typeinfo name for unsigned long long const*";
+ "typeinfo name for unsigned short const*";
+ "typeinfo name for char const*";
+ "typeinfo name for long long const*";
+ "typeinfo name for short const*";
+ "typeinfo name for unsigned int const*";
+ "typeinfo name for float const*";
+ "typeinfo name for bool const*";
+ "typeinfo name for wchar_t const*";
+ "typeinfo name for int const*";
+ "typeinfo name for unsigned long const*";
+ "typeinfo name for void const*";
+ "typeinfo name for long double const*";
+ "typeinfo name for signed char const*";
+ "typeinfo name for wchar_t";
+ "typeinfo name for short";
+ "typeinfo name for char";
+ "typeinfo name for float";
+ "typeinfo name for void";
+ "typeinfo name for unsigned int";
+ "typeinfo name for bool";
+ "typeinfo name for signed char";
+ "typeinfo name for long double";
+ "typeinfo name for int";
+ "typeinfo name for unsigned long long";
+ "typeinfo name for unsigned long";
+ "typeinfo name for unsigned char";
+ "typeinfo name for long";
+ "typeinfo name for long long";
+ "typeinfo name for unsigned short";
+ "typeinfo name for double";
+
+ "typeinfo name for bool*";
+ "typeinfo name for wchar_t*";
+ "typeinfo name for short*";
+ "typeinfo name for char*";
+ "typeinfo name for unsigned char*";
+ "typeinfo name for long long*";
+ "typeinfo name for unsigned short*";
+ "typeinfo name for long*";
+ "typeinfo name for double*";
+ "typeinfo name for unsigned long*";
+ "typeinfo name for unsigned long long*";
+ "typeinfo name for int*";
+ "typeinfo name for long double*";
+ "typeinfo name for signed char*";
+ "typeinfo name for void*";
+ "typeinfo name for unsigned int*";
+ "typeinfo name for float*";
+
+ "typeinfo name for __cxxabiv1::__array_type_info";
+ "typeinfo name for __cxxabiv1::__class_type_info";
+ "typeinfo name for __cxxabiv1::__enum_type_info";
+ "typeinfo name for __cxxabiv1::__function_type_info";
+ "typeinfo name for __cxxabiv1::__fundamental_type_info";
+ "typeinfo name for __cxxabiv1::__pbase_type_info";
+ "typeinfo name for __cxxabiv1::__pointer_to_member_type_info";
+ "typeinfo name for __cxxabiv1::__pointer_type_info";
+ "typeinfo name for __cxxabiv1::__si_class_type_info";
+ "typeinfo name for __cxxabiv1::__vmi_class_type_info";
+
+ "std::type_info::type_info(std::type_info const&)";
+ "std::type_info::operator=(std::type_info const&)";
+
+
+ # Extensions
+ "pathscale::set_terminate(void (*)())";
+ "pathscale::set_unexpected(void (*)())";
+ "pathscale::set_use_thread_local_handlers(bool)";
+ };
+
+ # C++11 typeinfo not understood by ld.bfd 2.17.50
+ # std::nullptr_t
+ _ZTIDn;_ZTIPDn;_ZTIPKDn;
+ # char16_t
+ _ZTIDi;_ZTIPDi;_ZTIPKDi;
+ # char32_t
+ _ZTIDs;_ZTIPDs;_ZTIPKDs;
+ # IEEE 754r half-precision floating point
+ _ZTIDh;_ZTIPDh;_ZTIPKDh;
+
+ # C++11 typeinfo name not understood by ld.bfd 2.17.50
+ # std::nullptr_t
+ _ZTSDn;_ZTSPDn;_ZTSPKDn;
+ # char16_t
+ _ZTSDi;_ZTSPDi;_ZTSPKDi;
+ # char32_t
+ _ZTSDs;_ZTSPDs;_ZTSPKDs;
+ # IEEE 754r half-precision floating point
+ _ZTSDh;_ZTSPDh;_ZTSPKDh;
+
+ local:
+ *;
+};
+
+CXXABI_1.3.1 {
+ __cxa_get_exception_ptr;
+} CXXABI_1.3;
+
+CXXABI_1.3.5 {
+ extern "C++" {
+ "typeinfo for __int128 const*";
+ "typeinfo for __int128";
+ "typeinfo for __int128*";
+ "typeinfo for unsigned __int128 const*";
+ "typeinfo for unsigned __int128";
+ "typeinfo for unsigned __int128*";
+ };
+} CXXABI_1.3.1;
+
+CXXABI_1.3.6 {
+ __cxa_deleted_virtual;
+} CXXABI_1.3.5;
+
+CXXABI_1.3.9 {
+ extern "C++" {
+ "typeinfo name for __int128 const*";
+ "typeinfo name for __int128";
+ "typeinfo name for __int128*";
+ "typeinfo name for unsigned __int128 const*";
+ "typeinfo name for unsigned __int128";
+ "typeinfo name for unsigned __int128*";
+ "operator delete[](void*, unsigned int)";
+ "operator delete(void*, unsigned int)";
+ };
+} CXXABI_1.3.6;
+
+CXXABI_1.3.11 {
+ __cxa_init_primary_exception;
+} CXXABI_1.3.9;
+
+CXXRT_1.0 {
+
+ extern "C++" {
+ "std::type_info::name() const";
+ "std::type_info::before(std::type_info const&) const";
+ "std::type_info::operator==(std::type_info const&) const";
+ "std::type_info::operator!=(std::type_info const&) const";
+ "std::bad_cast::bad_cast(std::bad_cast const&)";
+ "std::bad_cast::bad_cast()";
+ "std::bad_cast::operator=(std::bad_cast const&)";
+ "std::bad_typeid::bad_typeid(std::bad_typeid const&)";
+ "std::bad_typeid::bad_typeid()";
+ "std::bad_typeid::operator=(std::bad_typeid const&)";
+ "std::exception::exception(std::exception const&)";
+ "std::exception::exception()";
+ "std::exception::operator=(std::exception const&)";
+ "std::bad_alloc::bad_alloc(std::bad_alloc const&)";
+ "std::bad_alloc::bad_alloc()";
+ "std::bad_alloc::operator=(std::bad_alloc const&)";
+ "std::bad_array_new_length::bad_array_new_length(std::bad_array_new_length const&)";
+ "std::bad_array_new_length::bad_array_new_length()";
+ "std::bad_array_new_length::operator=(std::bad_array_new_length const&)";
+
+ };
+ __cxa_allocate_dependent_exception;
+ __cxa_current_primary_exception;
+ __cxa_decrement_exception_refcount;
+ __cxa_free_dependent_exception;
+ __cxa_increment_exception_refcount;
+ __cxa_rethrow_primary_exception;
+
+} CXXABI_1.3.6;
+
+
+GLIBCXX_3.4 {
+ extern "C++" {
+ "operator delete[](void*)";
+ "operator delete(void*)";
+ "operator new[](unsigned int)";
+ "operator new(unsigned int)";
+ "operator new(unsigned int, std::nothrow_t const&)";
+
+ "std::unexpected()";
+ "std::get_terminate()";
+ "std::get_unexpected()";
+ "std::uncaught_exception()";
+ "std::terminate()";
+
+ "std::type_info::~type_info()";
+ "std::bad_cast::~bad_cast()";
+ "std::bad_typeid::~bad_typeid()";
+ "std::exception::~exception()";
+ "std::bad_alloc::~bad_alloc()";
+ "std::bad_array_new_length::~bad_array_new_length()";
+
+ "std::exception::what() const";
+
+ std::set_new_handler*;
+ std::set_terminate*;
+ std::set_unexpected*;
+ std::type_info::__*;
+
+ "vtable for std::bad_alloc";
+ "vtable for std::bad_cast";
+ "vtable for std::bad_typeid";
+ "vtable for std::exception";
+ "vtable for std::type_info";
+ "vtable for std::bad_array_new_length";
+
+ "typeinfo for std::bad_alloc";
+ "typeinfo for std::bad_typeid";
+ "typeinfo for std::bad_cast";
+ "typeinfo for std::exception";
+ "typeinfo for std::type_info";
+ "typeinfo for std::bad_array_new_length";
+ "typeinfo name for std::bad_alloc";
+ "typeinfo name for std::bad_typeid";
+ "typeinfo name for std::bad_cast";
+ "typeinfo name for std::exception";
+ "typeinfo name for std::type_info";
+ "typeinfo name for std::bad_array_new_length";
+
+ };
+};
+
+GLIBCXX_3.4.9 {
+ extern "C++" {
+ "std::bad_typeid::what() const";
+ "std::bad_cast::what() const";
+ "std::bad_alloc::what() const";
+ "std::bad_array_new_length::what() const";
+ };
+} GLIBCXX_3.4;
+
+GLIBCXX_3.4.20 {
+ extern "C++" {
+ "std::get_new_handler()";
+ };
+} GLIBCXX_3.4.9;
+
+GLIBCXX_3.4.22 {
+ extern "C++" {
+ "std::uncaught_exceptions()";
+ };
+} GLIBCXX_3.4.20;
+