diff options
Diffstat (limited to 'cpukit/libmisc/monitor/mon-monitor.c')
| -rw-r--r-- | cpukit/libmisc/monitor/mon-monitor.c | 307 |
1 files changed, 0 insertions, 307 deletions
diff --git a/cpukit/libmisc/monitor/mon-monitor.c b/cpukit/libmisc/monitor/mon-monitor.c deleted file mode 100644 index aa466143f9..0000000000 --- a/cpukit/libmisc/monitor/mon-monitor.c +++ /dev/null @@ -1,307 +0,0 @@ -/* - * @(#)monitor.c 1.6 - 95/04/24 - * - */ - -/* - * mon-task.c - * - * Description: - * RTEMS monitor task - * - * - * - * TODO: - * add pause command (monitor sleeps for 'n' ticks, then wakes up) - * - */ - -#include <rtems.h> -/* #include <bsp.h> */ - -#include "symbols.h" -#include "monitor.h" - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> - -#define STREQ(a,b) (strcmp(a,b) == 0) - -/* set by trap handler */ -extern rtems_tcb *debugger_interrupted_task; -extern rtems_context *debugger_interrupted_task_context; -extern rtems_unsigned32 debugger_trap; - -/* our task id needs to be public so any debugger can resume us */ -rtems_unsigned32 rtems_monitor_task_id; - - -rtems_symbol_table_t *rtems_monitor_symbols; - - -#ifndef MONITOR_PROMPT -#define MONITOR_PROMPT "rtems> " -#endif - -#define MONITOR_WAKEUP_EVENT RTEMS_EVENT_0 - -/* - * Function: rtems_monitor_init - * - * Description: - * Create the RTEMS monitor task - * - * Parameters: - * 'monitor_suspend' arg is passed as initial arg to monitor task - * If TRUE, monitor will suspend itself as it starts up. Otherwise - * it will begin its command loop. - * - * Returns: - * - * - * Side Effects: - * - * - * Notes: - * - * - * Deficiencies/ToDo: - * - * - */ - -/* - * make_argv(cp): token-count - * Break up the command line in 'cp' into global argv[] and argc (return - * value). - */ - -int -rtems_monitor_make_argv( - char *cp, - int *argc_p, - char **argv) -{ - int argc = 0; - - while ((cp = strtok(cp, " \t\n\r"))) - { - argv[argc++] = cp; - cp = (char *) NULL; - } - argv[argc] = (char *) NULL; /* end of argv */ - - return *argc_p = argc; -} - -void -rtems_monitor_init(rtems_boolean monitor_suspend) -{ - rtems_status_code status; - - status = rtems_task_create(rtems_build_name('R', 'M', 'O', 'N'), - 1, 0/*stack*/, RTEMS_NO_PREEMPT | RTEMS_INTERRUPT_LEVEL(0), RTEMS_DEFAULT_ATTRIBUTES, &rtems_monitor_task_id); - if (status != RTEMS_SUCCESSFUL) - { - printf("could not create monitor task\n"); - goto done; - } - - rtems_monitor_symbols_loadup(); - - status = rtems_task_start(rtems_monitor_task_id, rtems_monitor_task, monitor_suspend); - if (status != RTEMS_SUCCESSFUL) - { - printf("could not start monitor!\n"); - goto done; - } - -done: -} - -rtems_status_code -rtems_monitor_suspend(rtems_interval timeout) -{ - rtems_event_set event_set; - rtems_status_code status; - - status = rtems_event_receive(MONITOR_WAKEUP_EVENT, RTEMS_DEFAULT_OPTIONS, timeout, &event_set); - return status; -} - -void -rtems_monitor_wakeup(void) -{ - rtems_status_code status; - - status = rtems_event_send(rtems_monitor_task_id, MONITOR_WAKEUP_EVENT); -} - - -/* - * Read and break up a monitor command - * - * We have to loop on the gets call, since it will return NULL under UNIX - * RTEMS when we get a signal (eg: SIGALRM). - */ - -int -rtems_monitor_read_command(char *command, - int *argc, - char **argv) -{ - printf("%s", MONITOR_PROMPT); fflush(stdout); - while (gets(command) == (char *) 0) - ; - return rtems_monitor_make_argv(command, argc, argv); -} - -void -rtems_monitor_task(rtems_task_argument monitor_suspend) -{ - rtems_tcb *debugee = 0; - char command[513]; - rtems_context *rp; - rtems_context_fp *fp; - char *cp; - int argc; - char *argv[64]; - - if ((rtems_boolean) monitor_suspend) - (void) rtems_monitor_suspend(RTEMS_NO_TIMEOUT); - - for (;;) - { - extern rtems_tcb * _Thread_Executing; - debugee = _Thread_Executing; - rp = &debugee->Registers; - fp = (rtems_context_fp *) debugee->fp_context; /* possibly 0 */ - - if (0 == rtems_monitor_read_command(command, &argc, argv)) - continue; - - if (STREQ(argv[0], "quit")) - rtems_monitor_suspend(RTEMS_NO_TIMEOUT); - else if (STREQ(argv[0], "pause")) - rtems_monitor_suspend(1); - -#ifdef CPU_INVOKE_DEBUGGER - else if (STREQ(argv[0], "debug")) - { - CPU_INVOKE_DEBUGGER; - } -#endif - else if (STREQ(argv[0], "symbol")) - { - char *symbol; - char *value; - - if (argc != 3) - { - printf("usage: symbol symname symvalue\n"); - continue; - } - - symbol = argv[1]; - value = argv[2]; - if (symbol && value) - { - rtems_symbol_t *sp; - sp = rtems_symbol_create(rtems_monitor_symbols, - symbol, - (rtems_unsigned32) strtoul(value, 0, 16)); - if (sp) - printf("symbol defined is at %p\n", sp); - else - printf("could not define symbol\n"); - } - else - printf("parsing error\n"); - } - else - { - printf("Unrecognized command: '%s'\n", argv[0]); - } - } -} - -/* - * Function: rtems_monitor_symbols_loadup - * - * Description: - * Create and load the monitor's symbol table. - * We are reading the output format of 'gnm' which looks like this: - * - * 400a7068 ? _Rate_monotonic_Information - * 400a708c ? _Thread_Dispatch_disable_level - * 400a7090 ? _Configuration_Table - * - * - * We ignore the type field. - * - * Parameters: - * - * - * Returns: - * - * - * Side Effects: - * Creates and fills in 'rtems_monitor_symbols' table - * - * Notes: - * - * - * Deficiencies/ToDo: - * Someday this should know BFD - * Maybe we could get objcopy to just copy the symbol areas - * and copy that down. - * - */ - -void -rtems_monitor_symbols_loadup(void) -{ - FILE *fp; - char buffer[128]; - - rtems_monitor_symbols = rtems_symbol_table_create(10); - if (rtems_monitor_symbols == 0) - return; - - fp = fdopen(8, "r"); - if (fp == 0) - return; - - while (fgets(buffer, sizeof(buffer) - 1, fp)) - { - char *symbol; - char *value; - char *ignored_type; - - value = strtok(buffer, " \t\n"); - ignored_type = strtok(0, " \t\n"); - symbol = strtok(0, " \t\n"); - - if (symbol && ignored_type && value) - { - rtems_symbol_t *sp; - sp = rtems_symbol_create(rtems_monitor_symbols, - symbol, - (rtems_unsigned32) strtoul(value, 0, 16)); - if (sp == 0) - { - printf("could not define symbol\n"); - goto done; - } - } - else - { - printf("parsing error\n"); - goto done; - } - } - -done: -} |