https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290687
Bug ID: 290687
Summary: LIBCPP hardening asserts are enabled with -DNDEBUG
which degrades performance
Product: Base System
Version: 14.3-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: [email protected]
Reporter: [email protected]
---BEGIN test program---
//#define _LIBCPP_HARDENING_MODE _LIBCPP_HARDENING_MODE_NONE
#include <vector>
#include <iostream>
int main() {
std::vector<int> v = {1, 2, 3, 4, 5};
std::cout << "last-ptr=" << &v[5] << std::endl;
return 0;
}
---END test program---
The above program fails with Illegal instruction due to LIBCPP asserts being
enabled.
Normally all asserts should be disabled with -DNDEBUG but these LIBCPP asserts
remain.
The hardening mode can be changed by uncommenting the first line in the
program.
_LIBCPP_HARDENING_MODE should probably default to _LIBCPP_HARDENING_MODE_NONE
with -DNDEBUG.
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