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Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls
From: |
Arun Sharma |
Subject: |
Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls |
Date: |
Wed, 22 Feb 2012 07:33:14 -0800 |
On Tue, Feb 21, 2012 at 10:56 PM, Sasikanth <address@hidden> wrote:
> The code i sent u and poor man's profiler r similar. But i had tried with
> poor man's profile ... Same results ... no change
>
> libunwind is not working if the code uses frame pointer for someother
> purpose .......
Two debug techniques:
readelf -wf <binary>
and look for pc=... range that matches the value of RIP you're trying
to unwind from. If there is no unwind info, that's the problem.
You can also use:
./configure --enable-debug
UNW_DEBUG_LEVEL=16 test-program
and post the output to the list or compare to a working test case
(ones included in the test directory).
-Arun
- [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Sasikanth, 2012/02/21
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Paul Pluzhnikov, 2012/02/21
- Message not available
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Sasikanth, 2012/02/21
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Arun Sharma, 2012/02/22
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Sasikanth, 2012/02/22
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls,
Arun Sharma <=
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Sasikanth, 2012/02/23
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Arun Sharma, 2012/02/23
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, POKHARAKAR Sandeep, 2012/02/23
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Arun Sharma, 2012/02/23
- Re: [Libunwind-devel] Reg: Libunwind with threads lib and system calls, Sasikanth, 2012/02/23