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[Bug 254229] gcore produces incorrect elf_prpsinfo note data



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Summary: gcore produces incorrect elf_prpsinfo note data


https://bugzilla.redhat.com/show_bug.cgi?id=254229


dvlasenk redhat com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #312485|0                           |1
        is obsolete|                            |




------- Additional Comments From dvlasenk redhat com  2008-07-24 10:36 EST -------
Created an attachment (id=312566)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=312566&action=view)
Updated patch against Fedora 9 source

Taking coredump of 64-bit process on x86_64:

# ./gcore.sleep
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0x7f837a29e6f0 (LWP 25786)]
(no debugging symbols found)
(no debugging symbols found)
0x0000003d4d6a6220 in __nanosleep_nocancel () from /lib64/libc.so.6
Saved corefile core.gcore.sleep.25786

# eu-readelf -n core.gcore.sleep.25786

Note section [ 1] 'note0' of 1336 bytes at offset 0x580:
  Owner 	 Data size  Type
  CORE		       136  PRPSINFO
    state: 0, sname: T, zomb: 0, nice: 0, flag: 0x0000000000000000
    uid: 0, gid: 0, pid: 25786, ppid: 25785, pgrp: 16965, sid: 16187
    fname: sleep, psargs: /bin/sleep
  CORE		       336  PRSTATUS
...

Taking coredump on 32-bit process on x86_64:

# ./gcore.sleep32
(no debugging symbols found)
(no debugging symbols found)
0x080cfd94 in ?? ()
Saved corefile core.gcore.sleep32.25797

# eu-readelf -n core.gcore.sleep32.25797

Note section [ 1] 'note0' of 1148 bytes at offset 0xf4:
  Owner 	 Data size  Type
  CORE		       124  PRPSINFO
    state: 0, sname: T, zomb: 0, nice: 0, flag: 0x00000000
    uid: 0, gid: 0, pid: 25797, ppid: 25796, pgrp: 16965, sid: 16187
    fname: sleep, psargs: /root/srcdevel/gdb/fix/tmp/sleep
  CORE		       144  PRSTATUS
...

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