| db_interface.c (70861) | db_interface.c (74903) |
|---|---|
| 1/* 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the --- 9 unchanged lines hidden (view full) --- 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie the 24 * rights to redistribute these changes. 25 * | 1/* 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the --- 9 unchanged lines hidden (view full) --- 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie the 24 * rights to redistribute these changes. 25 * |
| 26 * $FreeBSD: head/sys/amd64/amd64/db_interface.c 70861 2001-01-10 04:43:51Z jake $ | 26 * $FreeBSD: head/sys/amd64/amd64/db_interface.c 74903 2001-03-28 03:06:10Z jhb $ |
| 27 */ 28 29/* 30 * Interface to new debugger. 31 */ 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/reboot.h> --- 269 unchanged lines hidden (view full) --- 304 * Move this to machdep.c and allow it to be called if any debugger is 305 * installed. 306 */ 307void 308Debugger(msg) 309 const char *msg; 310{ 311 static volatile u_int in_Debugger; | 27 */ 28 29/* 30 * Interface to new debugger. 31 */ 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/reboot.h> --- 269 unchanged lines hidden (view full) --- 304 * Move this to machdep.c and allow it to be called if any debugger is 305 * installed. 306 */ 307void 308Debugger(msg) 309 const char *msg; 310{ 311 static volatile u_int in_Debugger; |
| 312 int flags; | 312 critical_t savecrit; 313 |
| 313 /* 314 * XXX 315 * Do nothing if the console is in graphics mode. This is 316 * OK if the call is for the debugger hotkey but not if the call 317 * is a weak form of panicing. 318 */ 319 if (cons_unavail && !(boothowto & RB_GDB)) 320 return; 321 | 314 /* 315 * XXX 316 * Do nothing if the console is in graphics mode. This is 317 * OK if the call is for the debugger hotkey but not if the call 318 * is a weak form of panicing. 319 */ 320 if (cons_unavail && !(boothowto & RB_GDB)) 321 return; 322 |
| 322 if (atomic_cmpset_int(&in_Debugger, 0, 1)) { 323 flags = save_intr(); 324 disable_intr(); | 323 if (atomic_cmpset_acq_int(&in_Debugger, 0, 1)) { 324 savecrit = critical_enter(); |
| 325 db_printf("Debugger(\"%s\")\n", msg); 326 breakpoint(); | 325 db_printf("Debugger(\"%s\")\n", msg); 326 breakpoint(); |
| 327 restore_intr(flags); 328 in_Debugger = 0; | 327 critical_exit(savecrit); 328 atomic_store_rel_int(&in_Debugger, 0); |
| 329 } 330} | 329 } 330} |