From: Al Viro <viro@ZenIV.linux.org.uk>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Richard Weinberger <richard@nod.at>,
linux-kernel@vger.kernel.org,
user-mode-linux-devel@lists.sourceforge.net,
Al Viro <viro@ftp.linux.org.uk>
Subject: Re: [PATCH 8/9] um: fix strrchr problems
Date: Mon, 29 Aug 2011 23:11:10 +0100 [thread overview]
Message-ID: <20110829221110.GO2203@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20110829142705.5be82d7c.akpm@linux-foundation.org>
On Mon, Aug 29, 2011 at 02:27:05PM -0700, Andrew Morton wrote:
> z:/usr/src/linux-3.1-rc4> grep -r kernel_strrchr .
> z:/usr/src/linux-3.1-rc4>
>
> ok, I give up. How does this work?
You are grepping for the wrong thing ;-) It works the same way defines
next to it do - both the kernel and libc define functions with the
same name (doing the same thing) and we get problems when linking.
See the comment right before it:
# -Dvmap=kernel_vmap prevents anything from referencing the libpcap.o symbol so
# named - it's a common symbol in libpcap, so we get a binary which crashes.
#
# Same things for in6addr_loopback and mktime - found in libc. For these two we
# only get link-time error, luckily.
#
# These apply to USER_CFLAGS to.
next prev parent reply other threads:[~2011-08-29 22:11 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-29 16:13 UML fixes for 3.1-rcX (2nd try) Richard Weinberger
2011-08-29 16:13 ` [PATCH 1/9] um: disable CMPXCHG_DOUBLE as it breaks UML build Richard Weinberger
2011-08-29 17:35 ` Christoph Lameter
2011-08-29 16:13 ` [PATCH 2/9] um: drivers/xterm.c: fix a file descriptor leak Richard Weinberger
2011-08-29 16:13 ` [PATCH 3/9] um: Save FPU registers between task switches Richard Weinberger
2011-08-29 16:13 ` [PATCH 4/9] um: fix oopsable race in line_close() Richard Weinberger
2011-08-29 16:13 ` [PATCH 5/9] um: winch_interrupt() can happen inside of free_winch() Richard Weinberger
2011-08-29 16:13 ` [PATCH 6/9] um: fix free_winch() mess Richard Weinberger
2011-08-29 16:13 ` [PATCH 7/9] um: PTRACE_[GS]ETFPXREGS had been wired on the wrong subarch Richard Weinberger
2011-08-29 16:13 ` [PATCH 8/9] um: fix strrchr problems Richard Weinberger
2011-08-29 21:27 ` Andrew Morton
2011-08-29 21:38 ` Richard Weinberger
2011-08-29 22:12 ` Al Viro
2011-08-29 22:15 ` Richard Weinberger
2011-08-29 22:19 ` Al Viro
2011-08-29 22:25 ` Richard Weinberger
2011-08-29 23:28 ` [uml-devel] " Boaz Harrosh
2011-08-30 0:23 ` Al Viro
2011-08-30 2:48 ` Al Viro
2011-08-30 10:32 ` Richard Weinberger
2011-08-30 12:48 ` Al Viro
2011-08-29 22:39 ` Arnaud Lacombe
2011-08-29 22:11 ` Al Viro [this message]
2011-08-30 3:41 ` [uml-devel] " Jeff Dike
2011-08-29 16:13 ` [PATCH 9/9] um: clean arch_ptrace() up a bit Richard Weinberger
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