Hi!
We have some unit tests failing because of `ber_decode` from the
https://github.com/vlm/asn1c library fails when running with
`detect_stack_use_after_return=1`. There is no sanitizer output, but the
function just fails.
It seems to only happen in 64-bit mode and we've previously increased the
stack size to get around a similar issue, but this time, I can't figure out
how to either solve the underlying problem - or how to give the sanitizer
the stack it needs. I simply want to turn `detect_stack_use_after_return`
off even if provided via `ASAN_OPTIONS`.
My current workaround it rather ugly:
```
extern "C" void __attribute__((constructor)) disable_asan()
{
if (auto opts = std::getenv("ASAN_OPTIONS"); opts)
{
if (std::ifstream is("/proc/self/cmdline"); is)
{
if (std::string cmd(std::istreambuf_iterator<char>(is),
std::istreambuf_iterator<char>{}); not cmd.empty())
{
std::clog << "RESTARTING \"" << cmd << "\" WITHOUT
ASAN_OPTIONS=" << opts << '\n';
unsetenv("ASAN_OPTIONS");
exit(system(cmd.c_str()));
}
}
}
}
```
What would be a cleaner way to either prevent this option from being used -
or get to the root cause (since I don't get any Asan output)?
Br,
Ted
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