From: Wu Zhou <woodzltc@cn.ibm.com>
To: gdb@sources.redhat.com
Subject: Program terminated with SIGSEGV when trying to print an array element
Date: Tue, 07 Jun 2005 08:14:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.63.0506071550050.28024@plinuxt18.cn.ibm.com> (raw)
This is a fortran program. It runs ok without GDB's control. But it
terminated with SIGSEGV when running under GDB. This happened when I
am trying to print an array element in the sub-function.
The testcase is as follows:
============================
dimension a(10)
write(*,*)'This is a test.'
call sub(a,10)
write(*,*) a
stop
end
subroutine sub(a,n)
dimension a(n)
do 100 i=1, 10
a(i)=i
100 continue
return
end
The failing GDB session is as follows:
=======================================
# gdb -q ./array
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) b array.f:11
Breakpoint 1 at 0x8048783: file array.f, line 11.
(gdb) r
Starting program: /root/array
This is a test.
Breakpoint 1, sub_ (a=0xbf8b9b50, n=@0x804888c) at array.f:11
11 a(i)=i
Current language: auto; currently fortran
(gdb) p a(1)
Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
The program being debugged stopped while in a function called from GDB.
When the function (at 0xbf8b9b50) is done executing, GDB will silently
stop (instead of continuing to evaluate the expression containing
the function call).
next reply other threads:[~2005-06-07 8:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-07 8:14 Wu Zhou [this message]
2005-06-07 9:03 ` Wu Zhou
2005-06-07 13:14 ` Daniel Jacobowitz
2005-06-08 6:57 ` Wu Zhou
2005-06-08 13:07 ` Daniel Jacobowitz
2005-06-09 2:47 ` Wu Zhou
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