From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
the arch/x86 maintainers <x86@kernel.org>,
linux-mips@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>
Subject: Re: [PATCHSET] saner elf compat
Date: Wed, 16 Dec 2020 09:44:53 +0000 (GMT) [thread overview]
Message-ID: <alpine.LFD.2.21.2012160924010.2104409@eddie.linux-mips.org> (raw)
In-Reply-To: <20201216030154.GL3579531@ZenIV.linux.org.uk>
On Wed, 16 Dec 2020, Al Viro wrote:
> > It may be worth pushing through GDB's gdb.threads/tls-core.exp test case,
> > making sure no UNSUPPORTED results have been produced due to resource
> > limits preventing a core from being dumped (and no FAILs, of course), with
> > o32/n32 native GDB. This should guarantee our output is still as expected
> > by an interpreter. Sadly I'm currently not set up for such testing though
> > eventually I mean to.
>
> Umm... What triple does one use for n32 gdb?
I don't think there's a standardised one, just configure with CC/CXX set
for n32 compilation, e.g.:
$ /path/to/configure CC="gcc -mabi=n32" CXX="g++ -mabi=n32"
(and any other options set as usually). This has to be with CC/CXX rather
than CFLAGS/CXXFLAGS so that it is guaranteed to be never overridden with
any logic that might do any fiddling with compilation options. This will
set up the test suite accordingly.
NB this may already be the compiler's default, depending on how it was
configured, i.e. if `--with-abi=n32' was used, in which case no extra
options will be required. I don't know if any standard MIPS distribution
does it though; 64-bit MIPS/Debian might. This will be reported with `gcc
--help -v', somewhere along the way.
Let me know if there are issues with this approach.
Maciej
next prev parent reply other threads:[~2020-12-16 9:47 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 21:45 [PATCHSET] saner elf compat Al Viro
2020-12-03 21:46 ` [PATCH 01/10] binfmt_elf: partially sanitize PRSTATUS_SIZE and SET_PR_FPVALID Al Viro
2020-12-03 21:46 ` [PATCH 02/10] elf_prstatus: collect the common part (everything before pr_reg) into a struct Al Viro
2020-12-03 21:46 ` [PATCH 03/10] [elfcore-compat][amd64] clean PRSTATUS_SIZE/SET_PR_FPVALID up properly Al Viro
2020-12-03 21:46 ` [PATCH 04/10] mips binfmt_elf*32.c: use elfcore-compat.h Al Viro
2020-12-03 21:46 ` [PATCH 05/10] mips: kill unused definitions in binfmt_elf[on]32.c Al Viro
2020-12-03 21:46 ` [PATCH 06/10] mips: KVM_GUEST makes no sense for 64bit builds Al Viro
2020-12-03 21:46 ` [PATCH 07/10] mips compat: don't bother with ELF_ET_DYN_BASE Al Viro
2020-12-03 21:46 ` [PATCH 08/10] mips: don't bother with ELF_CORE_EFLAGS Al Viro
2020-12-03 21:46 ` [PATCH 09/10] mips compat: switch to compat_binfmt_elf.c Al Viro
2020-12-03 21:46 ` [PATCH 10/10] Kconfig: regularize selection of CONFIG_BINFMT_ELF Al Viro
2020-12-03 22:09 ` [PATCHSET] saner elf compat Linus Torvalds
2020-12-03 23:03 ` Al Viro
2020-12-06 3:23 ` Al Viro
2020-12-07 3:36 ` hpa
2020-12-07 18:01 ` Maciej W. Rozycki
2020-12-16 3:01 ` Al Viro
2020-12-16 9:44 ` Maciej W. Rozycki [this message]
2020-12-22 20:04 ` Al Viro
2020-12-22 21:38 ` Al Viro
2020-12-22 22:57 ` Al Viro
2020-12-23 7:03 ` Al Viro
2020-12-23 7:12 ` Al Viro
2020-12-24 19:44 ` [RFC][PATCH] NT_FILE/NT_SIGINFO breakage on mips compat coredumps Al Viro
2020-12-29 15:09 ` Thomas Bogendoerfer
2020-12-15 19:54 ` [PATCHSET] saner elf compat Thomas Bogendoerfer
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