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authordtorilov <dtorilov@yandex-team.com>2023-05-24 16:49:46 +0300
committerdtorilov <dtorilov@yandex-team.com>2023-05-24 16:49:46 +0300
commitb7adcd4bdb1fcd9a79dc74c411e9812ebca574e4 (patch)
treeba95aa8c9cc988009baa060076db6c17488fc035 /contrib/libs/cxxsupp/libcxx/src
parent5284e74c027f3cf50fc29ceb5fd3d43b4729921b (diff)
downloadydb-b7adcd4bdb1fcd9a79dc74c411e9812ebca574e4.tar.gz
YT-19142: Add emscripten patches to libcxx
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/src')
-rw-r--r--contrib/libs/cxxsupp/libcxx/src/new.cpp9
-rw-r--r--contrib/libs/cxxsupp/libcxx/src/support/runtime/exception_fallback.ipp4
2 files changed, 13 insertions, 0 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/src/new.cpp b/contrib/libs/cxxsupp/libcxx/src/new.cpp
index b7e28281585..136084809de 100644
--- a/contrib/libs/cxxsupp/libcxx/src/new.cpp
+++ b/contrib/libs/cxxsupp/libcxx/src/new.cpp
@@ -73,8 +73,17 @@ operator new(std::size_t size) _THROW_BAD_ALLOC
#ifndef _LIBCPP_NO_EXCEPTIONS
throw std::bad_alloc();
#else
+#ifdef __EMSCRIPTEN__
+ // Abort here so that when exceptions are disabled, we do not just
+ // return 0 when malloc returns 0.
+ // We could also do this with set_new_handler, but that adds a
+ // global constructor and a table entry, overhead that we can avoid
+ // by doing it this way.
+ abort();
+#else
break;
#endif
+#endif
}
return p;
}
diff --git a/contrib/libs/cxxsupp/libcxx/src/support/runtime/exception_fallback.ipp b/contrib/libs/cxxsupp/libcxx/src/support/runtime/exception_fallback.ipp
index a45f11eb9f5..ebdca7e5ee2 100644
--- a/contrib/libs/cxxsupp/libcxx/src/support/runtime/exception_fallback.ipp
+++ b/contrib/libs/cxxsupp/libcxx/src/support/runtime/exception_fallback.ipp
@@ -48,6 +48,7 @@ get_terminate() noexcept
return __libcpp_atomic_load(&__terminate_handler);
}
+#ifndef __EMSCRIPTEN__ // We provide this in JS
_LIBCPP_NORETURN
void
terminate() noexcept
@@ -70,7 +71,9 @@ terminate() noexcept
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
+#endif // !__EMSCRIPTEN__
+#if !defined(__EMSCRIPTEN__)
bool uncaught_exception() noexcept { return uncaught_exceptions() > 0; }
int uncaught_exceptions() noexcept
@@ -79,6 +82,7 @@ int uncaught_exceptions() noexcept
fprintf(stderr, "uncaught_exceptions not yet implemented\n");
::abort();
}
+#endif // !__EMSCRIPTEN__
exception::~exception() noexcept