2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
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 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
16 * Carnegie Mellon requests users of this software to return to
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 * Interface to new debugger.
34 #include <sys/param.h>
35 #include <sys/systm.h>
39 #include <machine/cpufunc.h>
40 #include <machine/specialreg.h>
45 * Read bytes from kernel address space for debugger.
48 db_read_bytes(vm_offset_t addr, size_t size, char *data)
55 prev_jb = kdb_jmpbuf(jb);
62 (void)kdb_jmpbuf(prev_jb);
67 * Write bytes to kernel address space for debugger.
68 * We need to disable write protection temporarily so we can write
69 * things (such as break points) that might be in write-protected
73 db_write_bytes(vm_offset_t addr, size_t size, char *data)
82 prev_jb = kdb_jmpbuf(jb);
85 load_cr0(cr0save & ~CR0_WP);
91 (void)kdb_jmpbuf(prev_jb);
96 db_show_mdpcpu(struct pcpu *pc)
99 db_printf("curpmap = %p\n", pc->pc_curpmap);
100 db_printf("tssp = %p\n", pc->pc_tssp);
101 db_printf("commontssp = %p\n", pc->pc_commontssp);
102 db_printf("rsp0 = 0x%lx\n", pc->pc_rsp0);
103 db_printf("gs32p = %p\n", pc->pc_gs32p);
104 db_printf("ldt = %p\n", pc->pc_ldt);
105 db_printf("tss = %p\n", pc->pc_tss);