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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: "Qiu, Michael" <michael.qiu@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 3/3 v2] librte_eal/common: Fix redeclaration of enumerator ‘REG_EAX’
Date: Thu, 05 Mar 2015 15:38:56 +0100
Message-ID: <2382780.BfG7EQavsa@xps13> (raw)
In-Reply-To: <533710CFB86FA344BFBF2D6802E60286CEEF6B@SHSMSX101.ccr.corp.intel.com>

2015-03-05 14:03, Qiu, Michael:
> On 3/5/2015 9:54 PM, David Marchand wrote:
> > On Thu, Mar 5, 2015 at 2:50 PM, Michael Qiu <michael.qiu@intel.com
> > <mailto:michael.qiu@intel.com>> wrote:
> >
> >     include/rte_cpuflags.h:154:2: error: redeclaration of enumerator
> >     ‘REG_EAX’
> >     In file included from /usr/include/signal.h:358:0,
> >                      from /usr/include/sys/wait.h:30,
> >                      from /root/dpdk/app/test/test_mp_secondary.c:50:
> >     /usr/include/sys/ucontext.h:180:3: note: previous definition of
> >     ‘REG_EAX’ was here
> >
> >     In i686, from REG_EAX to REG_EDX are all defined in
> >             /usr/include/sys/ucontext.h
> >
> >     Rename to CPU_REG_EAX to avoid this issue.
> >
> >     Signed-off-by: Michael Qou <michael.qiu@intel.com
> >     <mailto:michael.qiu@intel.com>>
> >
> >
> > NAK.
> >
> 
> I have answered in you last thread, please check the mail.
> 
> Yes, but for some reason, it was not include, see /usr/include/signal.h:358
> 
> # include <bits/sigstack.h>
> # if defined __USE_XOPEN || defined __USE_XOPEN2K8
> /* This will define `ucontext_t' and `mcontext_t'.  */
> #  include <sys/ucontext.h>
> # endif
> 
> So only if __USE_XOPEN or __USE_XOPEN2K8 been defined will include 
> <sys/ucontext.h>

So try to define USE_XOPEN.

> Why NAK?

Because it seems you didn't really try to include system headers.
We must avoid redefine existing symbols. That's why this bug happens.
Michael, thanks for trying to fix this issue. It's appreciated even if
the first solution is refused.

  reply	other threads:[~2015-03-05 14:39 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-05 13:15 [dpdk-dev] [PATCH 0/3] dpdk2.0-rc1 build error fix Michael Qiu
2015-03-05 13:15 ` [dpdk-dev] [PATCH 1/3] librte_hash: Fix unsupported instruction `crc32' in i686 platform Michael Qiu
2015-03-05 16:10   ` Yerden Zhumabekov
2015-03-05 16:34     ` Qiu, Michael
2015-03-05 16:55   ` [dpdk-dev] [PATCH 1/3 v2] " Michael Qiu
2015-03-05 17:02     ` Yerden Zhumabekov
2015-03-05 17:10     ` Thomas Monjalon
2015-03-06  1:39       ` Qiu, Michael
2015-03-07 18:39         ` Thomas Monjalon
2015-03-10  3:55           ` Yerden Zhumabekov
2015-03-19  2:00           ` Qiu, Michael
2015-03-19  8:10             ` Thomas Monjalon
2015-03-09  5:58     ` [dpdk-dev] [PATCH 1/3 v3] " Michael Qiu
2015-03-18 13:20       ` Liu, Yong
2015-03-18 14:59         ` Qiu, Michael
2015-03-05 13:15 ` [dpdk-dev] [PATCH 2/3] app/test: Fix size_t printf formart issue Michael Qiu
2015-03-05 13:22   ` Bruce Richardson
2015-03-05 14:00   ` [dpdk-dev] [PATCH 2/3 v2] app/test: Fix size_t printf format issue Michael Qiu
2015-03-05 17:27     ` Thomas Monjalon
2015-03-06  1:42       ` Qiu, Michael
2015-03-06  3:53     ` [dpdk-dev] [PATCH 2/3 v3] " Michael Qiu
2015-03-05 13:15 ` [dpdk-dev] [PATCH 3/3] librte_eal/common: Fix redeclaration of enumerator ‘REG_EAX’ Michael Qiu
2015-03-05 13:23   ` Bruce Richardson
2015-03-05 13:36     ` David Marchand
2015-03-05 13:54       ` Qiu, Michael
2015-03-05 13:41     ` Qiu, Michael
2015-03-05 13:23   ` Qiu, Michael
2015-03-05 13:50   ` [dpdk-dev] [PATCH 3/3 v2] =?UTF-8?q?librte=5Feal/common:=20Fix=20redeclaration=20of?= =?UTF-8?q?=20enumerator=20=E2=80=98REG=5FEAX=E2=80=99?= Michael Qiu
2015-03-05 13:54     ` [dpdk-dev] [PATCH 3/3 v2] librte_eal/common: Fix redeclaration of enumerator ‘REG_EAX’ David Marchand
2015-03-05 14:03       ` Qiu, Michael
2015-03-05 14:38         ` Thomas Monjalon [this message]
2015-03-05 16:31           ` Qiu, Michael
2015-03-05 18:24             ` Thomas Monjalon
2015-03-05 13:57   ` [dpdk-dev] [PATCH 3/3 v3] =?UTF-8?q?librte=5Feal/common:=20Fix=20redeclaration=20of?= =?UTF-8?q?=20enumerator=20=E2=80=98REG=5FEAX=E2=80=99?= Michael Qiu
2015-03-06  6:28     ` [dpdk-dev] [PATCH 3/3 v3] librte_eal/common: Fix redeclaration of enumerator ‘REG_EAX’ David Marchand
2015-03-09 17:04 ` [dpdk-dev] [PATCH 0/3] dpdk2.0-rc1 build error fix Thomas Monjalon

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