New comment by wangp on void-packages repository

https://github.com/void-linux/void-packages/pull/37688#issuecomment-1254376906

Comment:
Interesting suggestion. I will add the build option, but I would like other people's opinions if it should be the default.

I'm mainly packaging mimalloc to use with mold. Here is a benchmark of mold on my machine.
Benchmark # 1 uses mold with mimalloc in non-secure mode.
Benchmark # 2 uses mold with mimalloc in secure mode.
```
Benchmark #1: ../../link-test.sh
  Time (mean ± σ):     255.3 ms ±   1.5 ms    [User: 22.2 ms, System: 7.4 ms]
  Range (min … max):   252.9 ms … 257.7 ms    20 runs
 
Benchmark #2: LD_LIBRARY_PATH=/tmp/mimalloc-secure/usr/lib ../../link-test.sh
  Time (mean ± σ):     265.1 ms ±   1.7 ms    [User: 26.8 ms, System: 8.1 ms]
  Range (min … max):   261.7 ms … 267.6 ms    20 runs
 
Summary
  '../../link-test.sh' ran
    1.04 ± 0.01 times faster than 'LD_LIBRARY_PATH=/tmp/mimalloc-secure/usr/lib ../../link-test.sh', -3.7%
```
In relative terms, a 3-4% slowdown is significant, but in absolute terms, 10 ms is not something that I would notice. So I think I would be okay with making secure mode the default, even if I don't see the need for it in a linker.

(For interest, the same link command using GNU ld takes 1.9 s.)