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From: Milian Wolff <>
Subject: dwfl_module_addrinfo and @plt entries
Date: Wed, 04 Jan 2017 00:41:00 -0000	[thread overview]
Message-ID: <4389913.7LHyNoxDn3@agathebauer> (raw)

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how do I get symbol information for @plt entries? Consider the following case:

$ objdump -j .plt -S lab_mandelbrot | head

lab_mandelbrot:     file format elf64-x86-64

Disassembly of section .plt:

0000000000002aa0 <_ZN7QWidget4showEv@plt-0x10>:
    2aa0:       ff 35 62 35 20 00       pushq  0x203562(%rip)        # 206008 
    2aa6:       ff 25 64 35 20 00       jmpq   *0x203564(%rip)        # 206010 
    2aac:       0f 1f 40 00             nopl   0x0(%rax)

Now I report dwfl the above binary at address 0x56360eaff000. Then I try to 
get information about the address 0x56360EB01AA0 (i.e. at offset 0x2aa0, 
corresponding to the @plt entry above). dwfl_module_addrinfo returns a NULL 
string, and offset equals the input address.

So, how do I use the dwfl API to also get sym names for @plt entries like in 
the case above?


Milian Wolff

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             reply	other threads:[~2017-01-04  0:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-04  0:41 Milian Wolff [this message]
2017-01-04 13:42 ` Mark Wielaard
2017-01-06 10:28   ` Milian Wolff
2017-01-06 19:17     ` Mark Wielaard
2017-07-05 13:34       ` Milian Wolff
2017-07-07 11:03         ` Mark Wielaard
2017-07-10 11:06           ` Milian Wolff
2017-08-28 14:28             ` Milian Wolff

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