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9a2d6ab990
- Fix segment registers to only display the low 16 bits. - Remove unused handlers and entries for the debug registers. - Display xcr0 (if valid) in 'show sysregs'. - Add '0x' prefix to MSR values to match other values in 'show sysregs'. - MFamd64: Display various MSRs in 'show sysregs'. - Add a 'show dbregs' to display the value of debug registers. - Dynamically size the column width for register values to properly align columns on 64-bit platforms. - Display %gs for i386 in 'show registers'. Differential Revision: https://reviews.freebsd.org/D2784 Reviewed by: kib, markj MFC after: 2 weeks
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/*-
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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*/
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/*
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* Author: David B. Golub, Carnegie Mellon University
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* Date: 7/90
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*/
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/*
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* Miscellaneous printing.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kdb.h>
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#include <sys/proc.h>
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#include <machine/pcb.h>
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#include <ddb/ddb.h>
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#include <ddb/db_variables.h>
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#include <ddb/db_sym.h>
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void
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db_show_regs(db_expr_t _1, bool _2, db_expr_t _3, char *_4)
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{
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struct db_variable *regp;
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db_expr_t value, offset;
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const char *name;
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for (regp = db_regs; regp < db_eregs; regp++) {
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if (!db_read_variable(regp, &value))
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continue;
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db_printf("%-12s%#*lr", regp->name,
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(int)(sizeof(unsigned long) * 2 + 2), (unsigned long)value);
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db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
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if (name != NULL && offset <= (unsigned long)db_maxoff &&
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offset != value) {
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db_printf("\t%s", name);
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if (offset != 0)
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db_printf("+%+#lr", (long)offset);
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}
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db_printf("\n");
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}
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db_print_loc_and_inst(PC_REGS());
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}
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