From 48ec896efb0b78141df004eaa21288b84590c9da Mon Sep 17 00:00:00 2001 From: Warner Losh Date: Wed, 5 Feb 2025 16:20:13 -0700 Subject: jemalloc: Import 5.3.0 54eaed1d8b56b1aa528be3bdd1877e59c56fa90c Import jemalloc 5.3.0. This import changes how manage the jemalloc vendor branch (which was just started anyway). Starting with 5.3.0, we import a clean tree from the upstream github, removing all the old files that are no longer upstream, or that we've kept around for some reason. We do this because we merge from this raw version of jemalloc into the FreeBSD contrib/jemalloc, then we run autogen stuff, generate all the generated .h files with gmake, then finally remove much of the generated files in contrib/jemalloc using an update script. Sponsored by: Netflix --- test/integration/cpp/infallible_new_true.cpp | 67 ++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 test/integration/cpp/infallible_new_true.cpp (limited to 'test/integration/cpp/infallible_new_true.cpp') diff --git a/test/integration/cpp/infallible_new_true.cpp b/test/integration/cpp/infallible_new_true.cpp new file mode 100644 index 000000000000..d67541281074 --- /dev/null +++ b/test/integration/cpp/infallible_new_true.cpp @@ -0,0 +1,67 @@ +#include + +#include "test/jemalloc_test.h" + +/* + * We can't test C++ in unit tests. In order to intercept abort, use a secret + * safety check abort hook in integration tests. + */ +typedef void (*abort_hook_t)(const char *message); +bool fake_abort_called; +void fake_abort(const char *message) { + if (strcmp(message, ": Allocation failed and " + "opt.experimental_infallible_new is true. Aborting.\n") != 0) { + abort(); + } + fake_abort_called = true; +} + +static bool +own_operator_new(void) { + uint64_t before, after; + size_t sz = sizeof(before); + + /* thread.allocated is always available, even w/o config_stats. */ + expect_d_eq(mallctl("thread.allocated", (void *)&before, &sz, NULL, 0), + 0, "Unexpected mallctl failure reading stats"); + void *volatile ptr = ::operator new((size_t)8); + expect_ptr_not_null(ptr, "Unexpected allocation failure"); + expect_d_eq(mallctl("thread.allocated", (void *)&after, &sz, NULL, 0), + 0, "Unexpected mallctl failure reading stats"); + + return (after != before); +} + +TEST_BEGIN(test_failing_alloc) { + abort_hook_t abort_hook = &fake_abort; + expect_d_eq(mallctl("experimental.hooks.safety_check_abort", NULL, NULL, + (void *)&abort_hook, sizeof(abort_hook)), 0, + "Unexpected mallctl failure setting abort hook"); + + /* + * Not owning operator new is only expected to happen on MinGW which + * does not support operator new / delete replacement. + */ +#ifdef _WIN32 + test_skip_if(!own_operator_new()); +#else + expect_true(own_operator_new(), "No operator new overload"); +#endif + void *volatile ptr = (void *)1; + try { + /* Too big of an allocation to succeed. */ + ptr = ::operator new((size_t)-1); + } catch (...) { + abort(); + } + expect_ptr_null(ptr, "Allocation should have failed"); + expect_b_eq(fake_abort_called, true, "Abort hook not invoked"); +} +TEST_END + +int +main(void) { + return test( + test_failing_alloc); +} + -- cgit v1.3