I don't know if this is HP-UX specific, but I'll take my chances with this forum.
I'm using WDB 5.7 on HP Itanium 11.23.
'file' on my executable shows:
ELF-32 executable object file - IA64
The problem is with viewing the contents of the variables.
Following is a sequence that demonstrates this:
Code:
HP gdb 5.7 for HP Itanium (32 or 64 bit) and target HP-UX 11.2x.
Copyright 1986 - 2001 Free Software Foundation, Inc.
Hewlett-Packard Wildebeest 5.7 (based on GDB) is covered by the
GNU General Public License. Type "show copying" to see the conditions to
change it and/or distribute copies. Type "show warranty" for warranty/support.
..
(gdb) stop in main
Breakpoint 1 at 0x400c5b0:1: file loader.cpp, line 902 from loader.
(gdb) run
Starting program: loader
Breakpoint 1, main (argc=Error accessing memory address 0xd08: Bad address.
) at loader.cpp:902
902 ll=new LclsLC_Library;
(gdb) print argc
Error accessing memory address 0xd08: Bad address.
(gdb) print &argc
$1 = (int *) 0xd08
(gdb) p ll
Error accessing memory address 0xcec: Bad address.
(gdb) p &ll
$1 = (LclsLC_Library **) 0xcec
(gdb)
See that both the parameter 'argc' and the local variable ll have a problem.
Now if I put a breakpoint in a function called by main, and then go up in the stack to main, I CAN see argc. See in the following sequence:
Code:
Breakpoint 2, Test (ll=Error accessing memory address 0xd28: Bad address.
) at loader.cpp:716
716 long lv,c,err = 0,j,k,ccv;
(gdb) where
#0 Test (ll=Error accessing memory address 0xd28: Bad address.
) at loader.cpp:716
#1 0x400c8a0:0 in main (argc=0, argv=0x7ffff9b8) at loader.cpp:911
(gdb) up
#1 0x400c8a0:0 in main (argc=0, argv=0x7ffff9b8) at loader.cpp:911
911 Test(ll,ts);
(gdb) p argc
$5 = 0
(gdb) p &argc
$6 = (int *) 0x7efff220
(gdb)
You may notice though that when I'm in the subprocedure I can't view the parameters of this subprocedure, such as ll .
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Discussion started by: bagpussnz
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LEARN ABOUT PHP
gzexe
GZEXE(1) General Commands Manual GZEXE(1)NAME
gzexe - compress executable files in place
SYNOPSIS
gzexe name ...
DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
penalty in performance). For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files:
-rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb
-rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~
/usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file. You can remove /usr/bin/gdb~ once you are
sure that /usr/bin/gdb works properly.
This utility is most useful on systems with very small disks.
OPTIONS -d Decompress the given executables instead of compressing them.
SEE ALSO gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the
PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail).
BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases,
using chmod or chown.
GZEXE(1)
11-21-2007
