This is the mail archive of the mailing list for the GDB project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

64 bit convenience variables?


I've recently been working on 64 bit images, and noticed that several of my 
GDB scripts malfunctioned because the convenience variables cannot store a 64 
bit value (in my case, these are usually pointers). Thus:

shahhaqu@shahhaqu-w500:~$ file `which gdb`
/usr/bin/gdb: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically 
linked (uses shared libs), for GNU/Linux 2.6.15, stripped

shahhaqu@shahhaqu-w500:~$ gdb
GNU gdb (Ubuntu/Linaro 7.3-0ubuntu2) 7.3-2011.08
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
(gdb) set $foo=(void *)0x8000800080008000
warning: value truncated
(gdb) p/x $foo
$1 = 0x80008000

Is there any possibility that the width could be increased?

Thanks, Shaheed

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]