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Bug 230903 - FEAT: dwfl_module_addrname() should also return lowpc+highpc
Summary: FEAT: dwfl_module_addrname() should also return lowpc+highpc
Alias: None
Product: Fedora
Classification: Fedora
Component: elfutils
Version: rawhide
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Roland McGrath
QA Contact:
Depends On:
Blocks: 173278 229424
TreeView+ depends on / blocked
Reported: 2007-03-04 15:32 UTC by Jan Kratochvil
Modified: 2007-11-30 22:11 UTC (History)
3 users (show)

Fixed In Version: 0.127-1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-04-19 18:28:20 UTC

Attachments (Terms of Use)

Description Jan Kratochvil 2007-03-04 15:32:27 UTC
Description of problem:
If DIE is not available but dwfl_module_addrname() is still able to locate the
symbol it returns only its name.  It could definitely return its base address
(lowpc) and according to ST_SIZE != 0 it could also return its highpc.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. name = dwfl_module_addrname (mod, 0xdeadf00d);

Actual results:

Expected results:
GElf_Addr lowpc, highpc;
name = dwfl_module_addrname (mod, 0xdeadf00d, &lowpc, &highpc);
if (name != NULL)
  process_lowpc (lowpc);
if (name != NULL && highpc != 0)
  process_highpc (highpc);

Additional info:
Patching dwfl_module_addrname() is trivia but some elfutils-wise API proposal
would be nice.

Comment 1 Roland McGrath 2007-03-04 21:43:58 UTC
I can add a similar call that takes an address but returns full info in the same
way as dwfl_module_getsym.

Comment 2 Jan Kratochvil 2007-03-04 21:59:42 UTC
Confirming I would like such API for these needs.  I hope it would
reuse/refactor some of the existing code of
dwfl_module_getsym()/gelf_getsymshndx() there.

Comment 3 Roland McGrath 2007-03-04 22:43:46 UTC
Of course it was already using that internally.  I've added the new
dwfl_module_addrsym call upstream, it was trivial.

Comment 4 Nurdin Premji 2007-03-26 17:29:43 UTC
Is the patch available?

Comment 5 Roland McGrath 2007-04-19 18:28:20 UTC
0.127 includes dwfl_module_addrsym

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