From: Mike Frysinger <vapier@gentoo.org>
To: Hans-Peter Nilsson <hp@axis.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 06/12] sim/testsuite: Support "requires: simoption <--name-of-option>"
Date: Wed, 16 Feb 2022 02:09:44 -0500 [thread overview]
Message-ID: <YgyjOKx9khb3wiEJ@vapier> (raw)
In-Reply-To: <20220216062451.703AD2040B@pchp3.se.axis.com>
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On 16 Feb 2022 07:24, Hans-Peter Nilsson wrote:
> Date: Tue, 15 Feb 2022 23:49:47 -0500 From: Mike Frysinger <vapier@gentoo.org>
> > On 15 Feb 2022 00:03, Hans-Peter Nilsson via Gdb-patches wrote:
> > > Simulator features can be present or not, typically
> > > depending on different-valued configure options, like
> > > --enable-sim-hardware[=off|=on]. To avoid failures in
> > > test-suite-runs when testing such configurations, a new
> > > predicate is needed, as neither "target", "progos" nor
> > > "mach" fits cleanly.
> > >
> > > The immediate need was to check for presence of a simulator
> > > option, but rather than a specialized "requires-simoption:"
> > > predicate I thought I'd handle the general (parametrized)
> > > need, so here's a generic predicate machinery and a (first)
> > > predicate to use together with it; checking whether a
> > > particular option is supported, by looking at "run --help"
> > > output. This was inspired by the check_effective_target_
> > > machinery in the gcc test-suite.
> >
> > i really don't want --help to be an API surface like this. it's the wrong
> > layer for the job.
> >
> > we have a sim_config_print function which dumps configuration information.
> > i'd be fine making that the surface to build off of. i don't think we
> > print hardware there atm, but should be trivial to introduce.
> >
> > only other missing piece is that it's not obvious how to access it from
> > the CLI. `run --version` doesn't include it. `run --do-command version`
> > does though :x. i'd be amenable to improving this interface, either by a
> > new option like --info-config</bikeshed> or some other route.
>
> But, "run --version" is a check for the *option* to exist,
> which exactly meets the need. You describe a probe for a
> particular *configuration*, which is arguably useful, but
> not for checking whether a particular option is supported.
i think you misunderstand. you're basically running:
run --help | grep -e--option
where --option is some functionality you care about.
i'm saying --help is not an interface. it should be free to change and
reformat things as makes sense and not worry about testsuites breaking.
in the case of a multitarget binary, we probably wouldn't display all the
options in a single page, but have arch-specific sections.
i'm proposing:
run --do-command version | grep <feature>
where in this case you seem to care about hardware support being enabled.
so the test would look like:
# requires: simoption WITH_HW
and then the code would look for that in the structured output produced
by the sim config output (which is included in the extended version).
-mike
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next prev parent reply other threads:[~2022-02-16 7:09 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-14 22:58 [PATCH 00/12] A little TLC for the simulators (in particular CRIS) Hans-Peter Nilsson
2022-02-14 22:59 ` [PATCH 01/12] sim cris: Correct PRIu32 to PRIx32 Hans-Peter Nilsson
2022-02-16 4:43 ` Mike Frysinger
2022-02-14 23:02 ` [PATCH 03/12] sim/testsuite: Set global_cc_os also when no compiler is found Hans-Peter Nilsson
2022-02-16 4:42 ` Mike Frysinger
2022-02-14 23:02 ` [PATCH 04/12] sim/testsuite/cris/c: Use -sim3 but only for newlib targets Hans-Peter Nilsson
2022-02-15 17:43 ` Dimitar Dimitrov
2022-02-15 22:49 ` Hans-Peter Nilsson
2022-02-16 5:25 ` Mike Frysinger
2022-02-16 6:07 ` Hans-Peter Nilsson
2022-02-16 7:34 ` Mike Frysinger
2022-02-16 5:39 ` Mike Frysinger
2022-02-16 6:09 ` Hans-Peter Nilsson
2022-02-16 7:17 ` Mike Frysinger
2022-02-16 15:27 ` Hans-Peter Nilsson
2022-02-14 23:03 ` [PATCH 06/12] sim/testsuite: Support "requires: simoption <--name-of-option>" Hans-Peter Nilsson
2022-02-16 4:49 ` Mike Frysinger
2022-02-16 6:24 ` Hans-Peter Nilsson
2022-02-16 7:09 ` Mike Frysinger [this message]
2022-02-16 15:25 ` Hans-Peter Nilsson
2022-02-14 23:05 ` [PATCH 08/12] sim cris: Unbreak --disable-sim-hardware builds Hans-Peter Nilsson
2022-02-16 4:51 ` Mike Frysinger
2022-02-16 5:54 ` Hans-Peter Nilsson
2022-02-16 6:48 ` Hans-Peter Nilsson
2022-02-16 7:15 ` Mike Frysinger
2022-02-14 23:05 ` [PATCH 09/12] sim: Fix use of out-of-tree assembler and linker when testing Hans-Peter Nilsson
2022-02-16 5:03 ` Mike Frysinger
2022-02-14 23:06 ` [PATCH 10/12] sim: Add sim_dump_memory for debugging Hans-Peter Nilsson
2022-02-16 5:02 ` Mike Frysinger
2022-02-16 6:10 ` Hans-Peter Nilsson
2022-02-16 6:41 ` Hans-Peter Nilsson
2022-02-17 2:05 ` Hans-Peter Nilsson
2022-02-17 5:30 ` Mike Frysinger
2022-02-14 23:07 ` [PATCH 11/12] sim/testsuite/cris: Remove faulty use of basename in C tests Hans-Peter Nilsson
2022-02-16 4:57 ` Mike Frysinger
2022-02-16 6:44 ` Hans-Peter Nilsson
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