Is there any mechanism in GDB to print memory allocation pattern in a core dump file

Is there any mechanism in GDB to print memory allocation pattern in a core dump file

[santoshp]

Hi All,
I got a crash for which the size of the core file is little bigger i.e.
~9GB. Initial impression is that there might be some memory leaks in the
process as the size is bugger than the usual size. Is there any mechanism in
GDB/Linux I can find out the memory allocation pattern in the core file?
e.g. There is a tool debug diag in Windows which can do this nicely from
dump file.

Any pointers will be appreciated.

Thanks,
Santosh
-- 
View this message in context: http://old.nabble.com/Is-there-any-mechanism-in-GDB-to-print-memory-allocation-pattern-in-a-core-dump-file-tp33895291p33895291.html
Sent from the Sourceware - gdb list mailing list archive at Nabble.com.

Re: Is there any mechanism in GDB to print memory allocation pattern in a core dump file

[Tom Tromey]

>>>>> "Santosh" == santoshp  <santosh.pradhan@gmail.com> writes:

Santosh> I got a crash for which the size of the core file is little
Santosh> bigger i.e.  ~9GB. Initial impression is that there might be
Santosh> some memory leaks in the process as the size is bugger than the
Santosh> usual size. Is there any mechanism in GDB/Linux I can find out
Santosh> the memory allocation pattern in the core file?  e.g. There is
Santosh> a tool debug diag in Windows which can do this nicely from dump
Santosh> file.

Nothing built in, but there is gdb-heap, if you're on a system using
glibc.

https://fedorahosted.org/gdb-heap/

Tom

Re: Is there any mechanism in GDB to print memory allocation pattern in a core dump file

[santoshp]

The application is a C++ application running on Linux (RHEL 5.7 x86_64). It
uses a private memory allocator (variation of ptmalloc). The gdb-heap link
says it works for python objects and work for c++ is under process. Can I
use the gdb-heap ?

Thanks,
Santosh

Nothing built in, but there is gdb-heap, if you're on a system using
glibc.

https://fedorahosted.org/gdb-heap/

Tom



-- 
View this message in context: http://old.nabble.com/Is-there-any-mechanism-in-GDB-to-print-memory-allocation-pattern-in-a-core-dump-file-tp33895291p33897108.html
Sent from the Sourceware - gdb list mailing list archive at Nabble.com.

Re: Is there any mechanism in GDB to print memory allocation pattern in a core dump file

[Tom Tromey]

>>>>> "Santosh" == santoshp  <santosh.pradhan@gmail.com> writes:

Santosh> The application is a C++ application running on Linux (RHEL 5.7
Santosh> x86_64). It uses a private memory allocator (variation of
Santosh> ptmalloc). The gdb-heap link says it works for python objects
Santosh> and work for c++ is under process. Can I use the gdb-heap ?

Probably not as-is.  gdb-heap relies on glibc.

You could probably port it to your allocator, though.

Tom