From: "H. Peter Anvin" <hpa@zytor.com>
To: Eric Wong <normalperson@yhbt.net>
Cc: git list <git@vger.kernel.org>
Subject: Re: [PATCH 2/4] short circuit out of a few places where we would allocate zero bytes
Date: Tue, 27 Dec 2005 20:22:42 -0800 [thread overview]
Message-ID: <43B21312.50603@zytor.com> (raw)
In-Reply-To: <20051224121243.GA3963@mail.yhbt.net>
Eric Wong wrote:
> dietlibc versions of malloc, calloc and realloc all return NULL if
> they're told to allocate 0 bytes, causes the x* wrappers to die().
>
> There are several more places where these calls could end up asking
> for 0 bytes, too...
>
> Maybe simply not die()-ing in the x* wrappers if 0/NULL is returned
> when the requested size is zero is a safer and easier way to go.
>
Better yet, either always return NULL or allocate 1 byte in that case,
to get consistent behaviour.
-hpa
next prev parent reply other threads:[~2005-12-28 4:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-24 12:10 [PATCH 0/4] dietlibc compatibility Eric Wong
2005-12-24 12:11 ` [PATCH 1/4] git.c: extra #include for dietlibc (and possibly other C libraries) Eric Wong
2005-12-26 17:01 ` Junio C Hamano
2005-12-24 12:12 ` [PATCH 2/4] short circuit out of a few places where we would allocate zero bytes Eric Wong
2005-12-24 12:44 ` Johannes Schindelin
2005-12-28 4:22 ` H. Peter Anvin [this message]
2005-12-28 4:38 ` Linus Torvalds
2005-12-28 5:07 ` Junio C Hamano
2005-12-28 16:58 ` H. Peter Anvin
2005-12-24 12:13 ` [PATCH 3/4] add xmktime() function that always accounts for the TZ env Eric Wong
2005-12-24 12:45 ` Johannes Schindelin
2005-12-24 19:18 ` Junio C Hamano
2005-12-24 19:52 ` Eric Wong
2005-12-24 21:10 ` Junio C Hamano
2005-12-24 12:14 ` [PATCH 4/4] git-compat-util.h: dietlibc-friendly x{malloc,realloc,calloc} Eric Wong
2005-12-24 18:28 ` Junio C Hamano
2005-12-24 21:15 ` Eric Wong
2005-12-26 18:16 ` [PATCH] Avoid allocating 0 bytes, was " Johannes Schindelin
2005-12-26 19:10 ` Junio C Hamano
2005-12-26 20:34 ` Johannes Schindelin
2005-12-26 22:03 ` [PATCH] avoid asking ?alloc() for zero bytes Junio C Hamano
2005-12-26 22:18 ` Johannes Schindelin
2005-12-28 20:38 ` [PATCH] Avoid allocating 0 bytes, was Re: [PATCH 4/4] git-compat-util.h: dietlibc-friendly x{malloc,realloc,calloc} Johannes Schindelin
2005-12-30 23:00 ` Eric Wong
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