HP gnu source-level debugger 5992-4701 Manuale Utente Scaricare il pdf (Pagina 202)

NOTE: Limitations for the enhanced info target command on corefile are as

follows:

• The enhanced info target command is not supported when the

expanded_node_host_names kernel parameter is set. It is supported only for the

default utsname.

• The heap segment listed in the memory segment does not contain mmapped

memory for the given core file.

14.15.3 Support for the dumpcore command

HP WDB provides the command, dumpcore to generate a core image file for a process

running under the debugger during execution.

The dumpcore command does not require any argument. It saves the core image for

the current process being debugged in the file named core.<pid>, where <pid> is the

process ID number.

To dump the core for a live process, you must pass the following commands:

(gdb) run Starting program: sample Breakpoint 3, main () at sample.c:1010 b

= foo(a); (gdb) dumpcore Dumping core to the core file core.24091(gdb)

When starting from the HP WDB command line:

(gdb) file sample

Reading

symbols from sample...done

(gdb) set live-core 1

(gdb) core-file core.24091

Core was generated by 'sample'.#0 main () at sample.c:1010 b = foo(a);

(gdb) backtrace#0 main () at sample.c:10

(gdb)

When starting from the shell prompt:

% gdb --lcore a.out core.<pid>

For example:

% ./gdb --lcore sample core.24091

HP gdb...

Type "show warranty" for warranty/support....

Core was generated by 'sample'.#0 main () at sample.c:10

(gdb)

14.15.3.1 Enhancements to the dumpcore command

HP WDB provides an option for the dumpcore command, to specify a <core-

filename>, to generate a core image file of a process running under the debugger in

the middle of execution and saves it in the file named <core-filename>.

The dumpcore command with no arguments saves the core image for the current

process being debugged in the file named core.<pid>, where pid is the process ID

number.

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HP gnu source-level debugger 5992-4701 Manuale Utente Pagina 202