libcxxrt: Add a stub implementation of __cxa_call_terminate

This function is called by GCC 14 if a destructor invoked during
exception unwinding throws an exception.

Reviewed by: emaste
Obtained fr

libcxxrt: Add a stub implementation of __cxa_call_terminate

This function is called by GCC 14 if a destructor invoked during
exception unwinding throws an exception.

Reviewed by: emaste
Obtained from: libcxxrt commit 391a3dcc1054e18c2f0dff4e14d6d79ac95399d7
Differential Revision: https://reviews.freebsd.org/D46004

(cherry picked from commit 297a9e552b9a5adf07d195eae9649b0758f395af)

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Merge libcxxrt master 03c83f5a57be8c5b1a29a68de5638744f17d28ba

Interesting fixes (* were already cherry-picked):
- 03c83f5 add __cxa_init_primary_exception (#23)
* 5d8a158 Fix two bugs in __cxa_end_

Merge libcxxrt master 03c83f5a57be8c5b1a29a68de5638744f17d28ba

Interesting fixes (* were already cherry-picked):
- 03c83f5 add __cxa_init_primary_exception (#23)
* 5d8a158 Fix two bugs in __cxa_end_cleanup()
* b00c6c5 Insert padding in __cxa_dependent_exception
* 45ca8b1 Insert padding in __cxa_exception struct for compatibility
* f2e5509 Fix unlock in two-word version and add missing comment.
- 6229590 Add an option for disabling emergency buffers. (#14)

MFC after: 2 weeks

(cherry picked from commit ecf4106237505fa9459ae871793b754334989c17)

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Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

libcxxrt: Move mangled symbols out of extern "C++" in Version.map

r260553 added a number of mangled C++ symbols to Version.map inside of
an existing `extern "C++"` block.

ld.bfd 2.17.50 treats `ext

libcxxrt: Move mangled symbols out of extern "C++" in Version.map

r260553 added a number of mangled C++ symbols to Version.map inside of
an existing `extern "C++"` block.

ld.bfd 2.17.50 treats `extern "C++"` permissively and will match both
mangled and demangled symbols against the strings in the version map
block. ld.lld interprets `extern "C++"` strictly, and matches only
demangled symbols.

I believe lld's behaviour is correct. Contemporary versions of ld.bfd
also behave as lld does, so move the mangled symbols out of the
`extern "C++"` block.

PR: 225128, 185663
MFC after: 1 week
Sponsored by: The FreeBSD Foundation

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Export std::get_new_handler() from libcxxrt.so

When trying to build world for MIPS64 with clang I was getting
linker errors because of a missing reference to std::get_new_handler().
It turns out std

Export std::get_new_handler() from libcxxrt.so

When trying to build world for MIPS64 with clang I was getting
linker errors because of a missing reference to std::get_new_handler().
It turns out std::get_new_handler() was not listed in Version.map so it was
marked as a local symbol in libcxxrt.so.

Reviewed by: theraven, brooks (mentor), emaste
Approved by: trasz
Obtained from: CheriBSD
Differential Revision: https://reviews.freebsd.org/D11925

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Surround any unmangled C++ names in libcxxrt's version map with 'extern
"C++"', otherwise ld refuses to make the symbols global in the final
library. This causes the __int128-related symbols to go m

Surround any unmangled C++ names in libcxxrt's version map with 'extern
"C++"', otherwise ld refuses to make the symbols global in the final
library. This causes the __int128-related symbols to go missing when
the library is stripped during installation.

Helpful hints: emaste
MFC after: 2 weeks
X-MFC-With: r314061

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Add __int128-related symbols to libcxxrt's version map. Put these into
the same CXXABI verions as recent libstdc++.

Note that __int128 types are only available on arches where long long is
128 bit

Add __int128-related symbols to libcxxrt's version map. Put these into
the same CXXABI verions as recent libstdc++.

Note that __int128 types are only available on arches where long long is
128 bit wide.

Noticed by: harti
MFC after: 2 weeks

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libcxxrt: correct mangled "typeinfo name" symbols in Version.map

r260553 added missing C++ typinfos to libcxxrt's version script.
It appears that a number of duplicate mangled symbols were added due

libcxxrt: correct mangled "typeinfo name" symbols in Version.map

r260553 added missing C++ typinfos to libcxxrt's version script.
It appears that a number of duplicate mangled symbols were added due to
a cut and paste error. Switch the second instances to _ZTS*,
typeinfo name for *.

Found by lld, which produces an error or warning for duplicate symbols.

Reviewed by: dim
Approved by: re (gjb)
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D7011

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Add std::uncaught_exceptions() to libcxxrt (C++17, see N4152 and N4259).
This has also been submitted upstream.

Add __cxa_deleted_virtual to libcxxrt's version map.

This symbol can sometimes be emitted by clang++, and was not yet
exported from libcxxrt. Attempt to be compatible with libsupc++ by
using the sa

Add __cxa_deleted_virtual to libcxxrt's version map.

This symbol can sometimes be emitted by clang++, and was not yet
exported from libcxxrt. Attempt to be compatible with libsupc++ by
using the same CXXABI_1.3.6 symbol version.

Reported by: [email protected]
PR: 200863
Reviewed by: emaste
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D2850

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Add support for __cxa_throw_bad_array_new_length in libcxxrt

It is required for use with newer g++49

Differential Revision: https://reviews.freebsd.org/D982
Reviewed by: theraven
Approved by: thera

Add support for __cxa_throw_bad_array_new_length in libcxxrt

It is required for use with newer g++49

Differential Revision: https://reviews.freebsd.org/D982
Reviewed by: theraven
Approved by: theraven
MFC after: 3 weeks

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Add missing C++11 typeinfos to the libcxxrt version script.

PR: 185663
MFC after: 1 week

Add several missing symbols to libcxxrt's symbol version map, and remove
a few duplicates. This should fix building world with -stdlib=libc++
after r246028.

Submitted by: Yamaya Takashi <yamayan@kb

Add several missing symbols to libcxxrt's symbol version map, and remove
a few duplicates. This should fix building world with -stdlib=libc++
after r246028.

Submitted by: Yamaya Takashi <[email protected]>
MFC after: 1 week
X-MFC-With: r246028

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Fix some symbol version mismatches between libstdc++ and libsupc++/libcxxrt
that were causing the runtime and STL libraries to see different versions of
various classes and functions when libstdc++ i

Fix some symbol version mismatches between libstdc++ and libsupc++/libcxxrt
that were causing the runtime and STL libraries to see different versions of
various classes and functions when libstdc++ is used as a filter.

Note: This changes the ABI for libcxxrt, but libcxxrt is currently only in
-STABLE for testing and is not used by anything unless explicitly enabled by
the end user. No default compiler configurations use it.

libc++ will need to be recompiled after this change. make buildworld will do
this automatically, but make in lib/libc++ will not necessarily work unless the
new libcxxrt is installed first.

PR: kern/171610, stand/175453
Reviewed by: kib
MFC after: 1 week

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Clean up some symbol versions for libsupc++ / libcxxrt.

MFC after: 1 week
Reviewed by: kan

Add symbol versioning to libcxxrt.

Approved by: dim (mentor)