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Replace experimental_infallible_new with compile-time flag

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The runtime option aborted on every OOM, breaking new(std::nothrow)
semantics. Replace with configure-time --enable-cxx-infallible-new
(default off): when on, throwing new aborts (size logged) and
nothrow returns null; when off, standard new_handler + bad_alloc /
null behavior is preserved. Under LTO the on-path lets the compiler
prove operator new is no-throw.
This commit is contained in:
Slobodan Predolac
2026-06-04 10:58:43 -07:00
parent a6048680a8
commit 160ab9d7f6
19 changed files with 103 additions and 44 deletions
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7
Makefile.in
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@@ -349,8 +349,11 @@ ifeq (@enable_cxx@, 1)
CPP_SRCS := $(srcroot)src/jemalloc_cpp.cpp
TESTS_INTEGRATION_CPP := $(srcroot)test/integration/cpp/basic.cpp
ifeq (@enable_cxx_exceptions@, 1)
TESTS_INTEGRATION_CPP += $(srcroot)test/integration/cpp/infallible_new_true.cpp \
$(srcroot)test/integration/cpp/infallible_new_false.cpp
ifeq (@enable_cxx_infallible_new@, 1)
TESTS_INTEGRATION_CPP += $(srcroot)test/integration/cpp/infallible_new.cpp
else
TESTS_INTEGRATION_CPP += $(srcroot)test/integration/cpp/failing_new.cpp
endif
endif
else
CPP_SRCS :=