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[Nano-devel] interrupting an open() does not work with gcc

From: Benno Schulenberg
Subject: [Nano-devel] interrupting an open() does not work with gcc
Date: Thu, 23 May 2019 11:28:04 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

Op 17-05-19 om 08:48 schreef Brand Huntsman:
> That SIGINT code will enable ^C when reading and maybe also writing, but I
> couldn't get it to work with opening, it segfaults inside open(). It should be
> possible because open() can return EINTR if interrupted.

With attached demo patch, ^C will interrupt the open() call for me, *when*
I use clang or tcc as compiler.  But with gcc... nothing happens.  :|

$ clang --version | head -1
clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)

$ tcc -v
tcc version 0.9.27 (x86_64 Linux)

$ gcc --version | head -1
gcc (Ubuntu 7.4.0-1ubuntu1~18.04) 7.4.0


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