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breakpoints/2194: Cannot insert breakpoint 1: Error accessing memory address 0x87414: I/O error
- From: danglin at gcc dot gnu dot org
- To: gdb-gnats at sources dot redhat dot com
- Date: 5 Nov 2006 00:29:23 -0000
- Subject: breakpoints/2194: Cannot insert breakpoint 1: Error accessing memory address 0x87414: I/O error
- Reply-to: danglin at gcc dot gnu dot org
>Number: 2194
>Category: breakpoints
>Synopsis: Cannot insert breakpoint 1: Error accessing memory address 0x87414: I/O error
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Nov 05 00:38:01 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Dave Anglin
>Release: GNU gdb 6.5.50.20061104-cvs
>Organization:
>Environment:
hppa2.0w-hp-hpux11.11
>Description:
# gdb ../../gcc/jc1
GNU gdb 6.5.50.20061104-cvs
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "hppa2.0w-hp-hpux11.11"...
(gdb) break main
Breakpoint 1 at 0x87414: file ../../gcc/gcc/main.c, line 35.
(gdb) r `cat xx.sh`
Starting program: /mnt/gnu/gcc/objdir/gcc/jc1 `cat xx.sh`
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x87414: I/O error.
This possibly has something to do with argument processing:
# gdb ../../gcc/jc1
GNU gdb 6.5.50.20061104-cvs
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "hppa2.0w-hp-hpux11.11"...
(gdb) break main
Breakpoint 1 at 0x87414: file ../../gcc/gcc/main.c, line 35.
(gdb) r
Starting program: /mnt/gnu/gcc/objdir/gcc/jc1
warning: The shared libraries were not privately mapped; setting a
breakpoint in a shared library will not work until you rerun the program.
Breakpoint 1, main (argc=1, argv=0x7eff051c) at ../../gcc/gcc/main.c:35
35 return toplev_main (argc, (const char **) argv);
(gdb) r `cat xx.sh`
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /mnt/gnu/gcc/objdir/gcc/jc1 `cat xx.sh`
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x87414: I/O error.
# cat xx.sh
/var/tmp/jbug -fuse-divide-subroutine -fuse-boehm-gc -fnon-call-exceptions -fkeep-inline-functions -quiet -dumpbase jbug -auxbase-strip .libs/gnu-xml.s -g -O2 -Wno-deprecated -version -ffilelist-file -fclasspath= -fbootclasspath=/mnt/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libjava/classpath/lib -fencoding=UTF-8 -fbootstrap-classes -fjni -findirect-dispatch -fno-indirect-classes -fPIC -o .libs/gnu-xml.s
As a work around, "set args" works. However, `cat file`
used to work and I find it convenient when there is a long
list of arguments.
As a side note, gdb isn't correctly detecting when shared
libraries are privately mapped. In the above example, I
used "chatr +dbg enable ../../gcc/jc1" to privately map
jc1's shared libraries.
-bash-2.05b$ chatr ../../gcc/jc1
../../gcc/jc1:
shared executable
shared library dynamic path search:
SHLIB_PATH disabled second
embedded path disabled first Not Defined
shared library list:
dynamic /usr/lib/libc.2
shared library binding:
deferred
global hash table disabled
plabel caching disabled
global hash array size:1103
global hash array nbuckets:3
shared vtable support disabled
explicit unloading enabled
static branch prediction disabled
executable from stack: D (default)
kernel assisted branch prediction enabled
lazy swap allocation disabled
text segment locking disabled
data segment locking disabled
third quadrant private data space disabled
fourth quadrant private data space disabled
third quadrant global data space disabled
data page size: D (default)
instruction page size: D (default)
nulptr references enabled
shared library private mapping enabled
shared library text merging disabled
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: