RTEMS 4.9.4 On-Line Library

Memory Commands mdump - display contents of memory

RTEMS Shell User's Guide

4.2.1: mdump - display contents of memory

SYNOPSYS:

mdump [address [length]]

DESCRIPTION:

This command displays the contents of memory at the address and length in bytes specified on the command line.

When length is not provided, it defaults to 320 which is twenty lines of output with sixteen bytes of output per line.

When address is not provided, it defaults to 0x00000000.

EXIT STATUS:

This command always returns 0 to indicate success.

NOTES:

Dumping memory from a non-existent address may result in an unrecoverable program fault.

EXAMPLES:

The following is an example of how to use mdump:

SHLL [/] $ mdump 0x10000 32
0x0001000000 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................
0x0001001000 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................
SHLL [/] $ mdump 0x02000000 32
0x02000000A1 48 00 00 29 00 80 33-81 C5 22 BC A6 10 21 00 .H..)..3.."...!.
0x02000010A1 48 00 00 29 00 80 33-81 C5 22 BC A6 10 21 01 .H..)..3.."...!.
SHLL [/] $ mdump 0x02001000 32
0x0200100003 00 80 00 82 10 60 00-81 98 40 00 83 48 00 00 ......`.....H..
0x0200101084 00 60 01 84 08 A0 07-86 10 20 01 87 28 C0 02 ..`....... ..(..

CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_MDUMP to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_MDUMP when all shell commands have been configured.

PROGRAMMING INFORMATION:

The mdump is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_mdump(
  int    argc,
  char **argv
);

The configuration structure for the mdump has the following prototype:

extern rtems_shell_cmd_t rtems_shell_MDUMP_Command;

RTEMS Shell User's Guide