[Bug libc/12432] New: backtrace() fails with recursive function on 64-bit

[Bug libc/12432] New: backtrace() fails with recursive function on 64-bit

[loose at astron dot nl]

http://sourceware.org/bugzilla/show_bug.cgi?id=12432

           Summary: backtrace() fails with recursive function on 64-bit
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: loose@astron.nl


Created attachment 5207
  --> http://sourceware.org/bugzilla/attachment.cgi?id=5207
Test program that demonstrates wrong backtrace on 64-bit

glibc's backtrace() function fails to give a complete backtrace with 64-bit
code when calling a recursive function. A 32-bit executable does produce a
correct backtrace. Using -fno-omit-frame-pointer does not solve the problem for
the 64-bit code.

This problem still exists with current glibc from git. I built glibc from git
at 2011-01-22 and linked the attached program to the freshly built libc. I
tried both static and dynamic linking; both give wrong output.

Output of 32-bit executable:
** 12 **
0   0x80484aa
1   0x8048492
2   0x8048492
3   0x8048492
4   0x8048492
5   0x8048492
6   0x8048492
7   0x8048492
8   0x8048492
9   0x8048492
10  0x804850f
11  0xf75bdc0e

Output of 64-bit executable:
** 2 **
0   0x4005c8
1   0x4005b2

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[Bug libc/12432] backtrace() fails with recursive function on 64-bit

[drepper.fsp at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12432

Ulrich Drepper <drepper.fsp at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #1 from Ulrich Drepper <drepper.fsp at gmail dot com> 2011-05-14 14:46:55 UTC ---
I've checked in a patch.

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[Bug libc/12432] backtrace() fails with recursive function on 64-bit

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12432

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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