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From: Pedro Alves <palves@redhat.com>
To: lgustavo@codesourcery.com
Cc: Yao Qi <yao@codesourcery.com>,
	       "'gdb-patches@sourceware.org'"
	<gdb-patches@sourceware.org>,
	       Mike Frysinger <vapier@gentoo.org>
Subject: Re: [PATCH, gdbserver] Further cleanup of FDPIC/DSBT divergences
Date: Mon, 12 Aug 2013 14:06:00 -0000	[thread overview]
Message-ID: <5208EBDD.4030504@redhat.com> (raw)
In-Reply-To: <5208E601.6070000@codesourcery.com>

On 08/12/2013 02:41 PM, Luis Machado wrote:

>>> +
>>> +  /* Fetch the DSBT_INDEX from the shared library file on disk.  */
>>> +  if (scan_dyntag_in_bfd (DT_TIC6X_DSBT_INDEX, solib_bfd, &addr) == 0)
>>
>> I don't find the definition of DT_TIC6X_DSBT_INDEX.  In uclibc, I only
>> find DT_C6000_DSBT_INDEX.
>>
> 
> That is exactly what it is. I named it DT_TIC6X_DSBT_INDEX to make it 
> more meaningful, but i can use DT_C6000_DSBT_INDEX without problems i think.

Indeed.  The kernel (arch/c6x/include/asm/elf.h) has:

 85 /* C6X specific DT_ tags */
 86 #define DT_C6000_DSBT_BASE      0x70000000
 87 #define DT_C6000_DSBT_SIZE      0x70000001
 88 #define DT_C6000_PREEMPTMAP     0x70000002
 89 #define DT_C6000_DSBT_INDEX     0x70000003

BFD also already has (include/elf/tic6x.h):

 /* The hard-coded DSBT index for this module, if any. */
 #define DT_C6000_DSBT_INDEX 0x70000003

IMO, yes, better stick with existing practice and not
invent new symbols.

-- 
Pedro Alves


  reply	other threads:[~2013-08-12 14:06 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-20 18:57 Luis Machado
2013-06-24 13:47 ` Yao Qi
2013-06-24 14:25   ` Luis Machado
2013-08-08 16:41     ` Luis Machado
2013-08-09 15:08       ` Pedro Alves
2013-08-09 17:20         ` Luis Machado
2013-08-10  0:33           ` Yao Qi
2013-08-12 13:41             ` Luis Machado
2013-08-12 14:06               ` Pedro Alves [this message]
2013-08-26  5:31           ` Mike Frysinger
2013-06-24 16:17 ` Mike Frysinger
2013-06-25 15:03 ` Pedro Alves
2013-06-25 15:04   ` Luis Machado
2013-06-25 16:26   ` Mike Frysinger

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