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[illumos] enable SIGSEGV handler to detect stack overflows #130132

Merged
merged 1 commit into from
Sep 10, 2024
Merged

[illumos] enable SIGSEGV handler to detect stack overflows #130132

merged 1 commit into from
Sep 10, 2024

Commits on Sep 9, 2024

  1. [illumos] enable SIGSEGV handler to detect stack overflows 

    Use the same code as Solaris. I couldn't find any tests regarding this, but I
did test a stage0 build against my stack-exhaust-test binary [1]. Before:

```
running with use_stacker = No, new_thread = false, make_large_local = false
zsh: segmentation fault (core dumped)  cargo run
```

After:

```
running with use_stacker = No, new_thread = false, make_large_local = false

thread 'main' has overflowed its stack
fatal runtime error: stack overflow
zsh: IOT instruction (core dumped)  cargo +stage0 run
```

Fixes rust-lang#128568.

[1] https://github.com/sunshowers/stack-exhaust-test/
    @sunshowers
    sunshowers committed Sep 9, 2024
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