Re: ld.elf_so core dump: NULL ehdr in _rtld_init

To: Thomas Klausner <wiz%NetBSD.org@localhost>
Subject: Re: ld.elf_so core dump: NULL ehdr in _rtld_init
From: RVP <rvp%SDF.ORG@localhost>
Date: 2024年7月27日 10:23:32 +0000 (UTC)

On 2024年7月27日, Thomas Klausner wrote:

I've filed a bug report because backtrace-rs (the backtrace support in
rust) has a self test that dumps core.
https://github.com/rust-lang/backtrace-rs/issues/644
When asked for details, I noticed that it's actually a core dump in
ld.elf_so.

The program is trying to run the executable like this[1]:
	/libexec/ld.elf_so prog args...
This works on Linux and FreeBSD, but, "direct execution mode" isn't supported
on NetBSD as far as I can see.
Better turn this test off on NetBSD.
-RVP
[1] https://github.com/rust-lang/backtrace-rs/blob/master/tests/current-exe-mismatch.rs#L56

References:
- ld.elf_so core dump: NULL ehdr in _rtld_init
  - From: Thomas Klausner

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