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Re: Backtrace_symbols and .symtab

From: Yury Gribov <y dot gribov at samsung dot com>
To: Carlos O'Donell <carlos at redhat dot com>, munroe at us dot ibm dot com
Cc: Roland McGrath <roland at hack dot frob dot com>, GNU C Library <libc-alpha at sourceware dot org>, Viacheslav Garbuzov <v dot garbuzov at samsung dot com>, Andreas Jaeger <aj at suse dot com>
Date: Fri, 24 Oct 2014 18:35:50 +0400
Subject: Re: Backtrace_symbols and .symtab
Authentication-results: sourceware.org; auth=none
References: <5447C4FF dot 7090507 at samsung dot com> <5447D7C0 dot 80705 at samsung dot com> <20141022164426 dot 4921E2C3ABB at topped-with-meat dot com> <5447E5EF dot 3080307 at samsung dot com> <1414157397 dot 12737 dot 11 dot camel at oc8268013063 dot ibm dot com> <544A57CC dot 3080300 at samsung dot com> <544A61F1 dot 5070104 at redhat dot com>

On 10/24/2014 06:28 PM, Carlos O'Donell wrote:

On 10/24/2014 09:44 AM, Yury Gribov wrote:

Sure, this will be a separate API because we don't want to slow
existing users. So either add some flags parameter or a completely
new function.


I don't oppose a new backtrace function does a more complete job
if .symtab is present.

I agree with Steven Munroe that the existing API performance should
remain unchanged in the default case.

However, the proof is in the pudding. What does the design look
like, how complicated is it, does it work, etc.

Got it. I'll get back with a draft patch which illustrates my ideas then(not sure about timing though).

-Y

References:
- Backtrace_symbols and .symtab
  - From: Yury Gribov
- Re: Backtrace_symbols and .symtab
  - From: Yury Gribov
- Re: Backtrace_symbols and .symtab
  - From: Roland McGrath
- Re: Backtrace_symbols and .symtab
  - From: Yury Gribov
- Re: Backtrace_symbols and .symtab
  - From: Steven Munroe
- Re: Backtrace_symbols and .symtab
  - From: Yury Gribov
- Re: Backtrace_symbols and .symtab
  - From: Carlos O'Donell

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