drivers/misc/kgdbts.c

20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24  * -------------------------------------
28  * The tests are broken up in to a line by line and referenced here as
34  * suite uses the variable "kgdbts" to obtain the information about
35  * which tests to run and to configure the verbosity level.  The
46  * N## = Go to sleep with interrupts of for ## seconds
47  *       to test the HW NMI watchdog
54  * To invoke the kgdb test suite from boot you use a kernel start
57  * Or if you wanted to perform the NMI test for 6 seconds and do_fork
78  * 3) Run the concurrency tests.  It is best to use n+1
87  * fg # and hit control-c
88  * fg # and hit control-c
93  * fg # and hit control-c
147 					sizeof(unsigned long) - 1) /
151 /* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
152 static int configured		= -1;
198 /* This is noinline such that it can be used for a single location to
298 	/* On some arches, a breakpoint stop requires it to be decremented */  in check_and_rewind_pc()
300 		offset = -BREAK_INSTR_SIZE;  in check_and_rewind_pc()
349 	repeat_test--;  in skip_back_repeat_test()
353 		ts.idx -= go_back;  in skip_back_repeat_test()
407 		/* validate the "g" packet to get the IP */  in emul_sstep_put()
413 		/* Want to stop at IP + break instruction size by default */  in emul_sstep_put()
442 	ts.idx--;  in emul_sstep_put()
454  * Test to plant a breakpoint and detach, which should clear out the
465  * Simple test to write in a software breakpoint, check for the
481  * Test a known bad memory read location to test the fault handler and
482  * read bytes 1-8 at the bad address
644 		/* If someone does a * to match the rest of the string, allow  in validate_simple_test()
693 	/* This callback is a put char which is when kgdb sends data to  in run_simple_test()
717 	if (put_buf_cnt > 3 && put_buf[put_buf_cnt - 3] == '#') {  in run_simple_test()
757 	/* Activate test with initial breakpoint */  in run_plant_and_detach_test()
783 	/* Activate test with initial breakpoint */  in run_breakpoint_test()
808 	/* Activate test with initial breakpoint */  in run_hw_break_test()
835 	/* Activate test with initial breakpoint */  in run_nmi_sleep_test()
855 	/* Activate test with initial breakpoint */  in run_bad_read_test()
864 	/* Activate test with initial breakpoint */  in run_do_fork_test()
873 	/* Activate test with initial breakpoint */  in run_sys_open_test()
882 	/* Activate test with initial breakpoint */  in run_singlestep_break_test()
944 	/* Until there is an api to write to read-only text segments, use  in kgdbts_run_tests()
958 	 * end to unregister the debug hooks.  in kgdbts_run_tests()
971 	 * end to unregister the debug hooks.  in kgdbts_run_tests()
990 		return -ENOSPC;  in kgdbts_option_setup()
1066 		return -ENOSPC;  in param_set_kgdbts_var()
1077 		return -EBUSY;  in param_set_kgdbts_var()
1082 	if (config[len - 1] == '\n')  in param_set_kgdbts_var()
1083 		config[len - 1] = '\0';  in param_set_kgdbts_var()