Re: misc/55757 (Builds fail to clean up temporary files)

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR misc/55757; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: lukem%NetBSD.org@localhost
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: misc/55757 (Builds fail to clean up temporary files)
Date: Sun, 21 May 2023 10:01:41 +0300

 lukem%NetBSD.org@localhost asked:
 > Is this still an issue building -current?
 
 Thank you for looking into this.  Looks like it is no longer an issue
 building -current.  I just checked the /tmp on babylon5.netbsd.org,
 and although it is still accumulating temporary files, it is now doing
 so at a much slower rate than when the PR was filed, and all the ones
 I examined were either from builds of branches other than HEAD or from
 builds of historical versions of -current.
 
 > I've looked through the sources for "cdtor.c" references and it's
 > just in gcc's collect2.c. There were some changes in how that
 > file was generated in the import of gcc 9.3.0 on 2020-09-05.
 > As far as I can tell, the *cdtor.c and *cdtor.o files are
 > saved persistently with -save-temps, or are created with mkstemps()
 > by make_temp_file_with_prefix() (backend for make_temp_file())
 > in libiberty/make-temp-file.c.
 > Files created by mkstemps() should be cleaned up on process exit,
 > unless the (gcc) process terminates abnormally.
 
 I don't think it was fixed by the gcc 9.3.0 import specifically,
 because the PR said the problem was present in an amd64 build of
 sources from 2020-10-26, which is after gcc 9.3.0 was enabled on
 amd64.  I'm currently running an automated bisection to find out when
 it was actually fixed, but that will take another day or so to
 complete.
 
 > If the files are still occurring, are they from the tools gcc,
 > or the hosts's native gcc?
 
 According to the PR, the .ld files are from the build of biosboot,
 and since biosboot is not itself a tool, presumably the files are
 from the tools gcc.
 -- 
 Andreas Gustafsson, gson%gson.org@localhost