From: "Seebs" <seebs@seebs.net>
To: openembedded-core@lists.openembedded.org
Subject: Re: [OE-core] [PATCH pseudo 1/4] Remove -fno-strict-aliasing and -Wno-deprecated-declarations
Date: Tue, 27 Jul 2021 10:49:27 -0500 [thread overview]
Message-ID: <20210727104927.18f26c21@seebsdell> (raw)
In-Reply-To: <20210727114906.191837-1-dwrobel@ertelnet.rybnik.pl>
On Tue, 27 Jul 2021 13:49:03 +0200
"Damian Wrobel" <dwrobel@ertelnet.rybnik.pl> wrote:
> -# no-strict-aliasing is needed for the function pointer trickery.
> pseudo_wrappers.o: $(GUTS) pseudo_wrappers.c pseudo_wrapfuncs.c
> pseudo_wrapfuncs.h pseudo_tables.h
> - $(CC) -fno-strict-aliasing $(CFLAGS) $(CFLAGS_PSEUDO)
> -D_GNU_SOURCE -c -o pseudo_wrappers.o pseudo_wrappers.c
I would be really uncomfortable relying on that not being needed, even
if it happened to work in specific cases. The function pointer trickery
is black magic and very much undefined behavior, and warning the
compiler away from it seems reasonably likely to be advantageous.
-s
next prev parent reply other threads:[~2021-07-27 15:49 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 11:49 [PATCH pseudo 1/4] Remove -fno-strict-aliasing and -Wno-deprecated-declarations Damian Wrobel
2021-07-27 11:49 ` [PATCH pseudo 2/4] Do not pass null argument to pseudo_diag() Damian Wrobel
2021-07-27 15:48 ` [OE-core] " Seebs
2021-07-27 11:49 ` [PATCH pseudo 3/4] Use -pthread instead of -lpthread Damian Wrobel
2021-07-27 11:49 ` [PATCH pseudo 4/4] Do not return address of local variable Damian Wrobel
2021-07-27 15:47 ` [OE-core] " Seebs
2021-07-27 16:30 ` Damian Wrobel
2021-07-27 16:52 ` Seebs
2021-07-28 9:36 ` Damian Wrobel
2021-07-28 20:16 ` Seebs
2021-07-28 20:49 ` Andre McCurdy
2021-07-28 20:53 ` Seebs
2021-07-29 12:37 ` [OE-core] [PATCH pseudo 4/4] Do not return address of local variable - unverified Damian Wrobel
2021-07-29 15:08 ` Seebs
2021-07-27 15:49 ` Seebs [this message]
2021-07-27 16:35 ` [OE-core] [PATCH pseudo 1/4] Remove -fno-strict-aliasing and -Wno-deprecated-declarations Damian Wrobel
2021-07-27 16:46 ` Seebs
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