/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/param.h>

#include "rdb.h"

static void
disp_reg_line(struct ps_prochandle *ph, pstatus_t *prst, char *r1, int ind1,
    char *r2, int ind2)
{
	char	str1[MAXPATHLEN], str2[MAXPATHLEN];

	(void) strcpy(str1, print_address_ps(ph, prst->pr_lwp.pr_reg[ind1],
	    FLG_PAP_NOHEXNAME));

	(void) strcpy(str2, print_address_ps(ph, prst->pr_lwp.pr_reg[ind2],
	    FLG_PAP_NOHEXNAME));

	if (ph->pp_dmodel == PR_MODEL_LP64) {
		/*
		 *  In 64-bits, the display gets too wide when
		 *  you have both a 64-bit address and a symbol
		 *  name, e.g. _GLOBAL_OFFSET_TABLE;  therefore,
		 *  each is put on a separate line.  This isn't
		 *  as convenient as the 32-bit display.
		 */
		(void) printf("%8s: 0x%08lx %-16s\n", r1,
		    prst->pr_lwp.pr_reg[ind1], str1);
		(void) printf("%8s: 0x%08lx %-16s\n", r2,
		    prst->pr_lwp.pr_reg[ind2], str2);
	} else
		(void) printf("%8s: 0x%08lx %-16s %8s: 0x%08lx %-16s\n", r1,
		    prst->pr_lwp.pr_reg[ind1], str1, r2,
		    prst->pr_lwp.pr_reg[ind2], str2);
}

void
display_local_regs(struct ps_prochandle *ph, pstatus_t *prst)
{
	pstatus_t	pstatus;

	if (prst == NULL) {
		if (pread(ph->pp_statusfd, &pstatus, sizeof (pstatus),
		    0) == -1) {
			perror("dar: reading status");
			return;
		}
		prst = &pstatus;
	}
	(void) printf("locals:\n");
	disp_reg_line(ph, prst, "l0", R_L0, "l4", R_L4);
	disp_reg_line(ph, prst, "l1", R_L1, "l5", R_L5);
	disp_reg_line(ph, prst, "l2", R_L2, "l6", R_L6);
	disp_reg_line(ph, prst, "l3", R_L3, "l7", R_L7);
}

void
display_out_regs(struct ps_prochandle *ph, pstatus_t *prst)
{
	pstatus_t	pstatus;

	if (prst == NULL) {
		if (pread(ph->pp_statusfd, &pstatus, sizeof (pstatus),
		    0) == -1) {
			perror("dar: reading status");
			return;
		}
		prst = &pstatus;
	}
	(void) printf("outs:\n");
	disp_reg_line(ph, prst, "o0", R_O0, "o4", R_O4);
	disp_reg_line(ph, prst, "o1", R_O1, "o5", R_O5);
	disp_reg_line(ph, prst, "o2", R_O2, "o6(sp)", R_O6);
	disp_reg_line(ph, prst, "o3", R_O3, "o7", R_O7);
}

void
display_special_regs(struct ps_prochandle *ph, pstatus_t *prst)
{
	pstatus_t	pstatus;

	if (prst == NULL) {
		if (pread(ph->pp_statusfd, &pstatus, sizeof (pstatus),
		    0) == -1) {
			perror("dar: reading status");
			return;
		}
		prst = &pstatus;
	}
	(void) printf("specials:\n");
	if (ph->pp_dmodel == PR_MODEL_LP64) {
		disp_reg_line(ph, prst, "ccr", R_CCR, "pc", R_PC);
		disp_reg_line(ph, prst, "npc", R_nPC, "Y", R_Y);
		disp_reg_line(ph, prst, "asi", R_ASI, "FPRS", R_FPRS);
	} else {
		disp_reg_line(ph, prst, "psr", R_PSR, "pc", R_PC);
		disp_reg_line(ph, prst, "npc", R_nPC, "Y", R_Y);
		disp_reg_line(ph, prst, "wim", R_WIM, "TBR", R_TBR);
	}
}

void
display_global_regs(struct ps_prochandle *ph, pstatus_t *prst)
{
	pstatus_t	pstatus;

	if (prst == NULL) {
		if (pread(ph->pp_statusfd, &pstatus, sizeof (pstatus),
		    0) == -1) {
			perror("dar: reading status");
			return;
		}
		prst = &pstatus;
	}
	(void) printf("globals:\n");
	disp_reg_line(ph, prst, "g0", R_G0, "g4", R_G4);
	disp_reg_line(ph, prst, "g1", R_G1, "g5", R_G5);
	disp_reg_line(ph, prst, "g2", R_G2, "g6", R_G6);
	disp_reg_line(ph, prst, "g3", R_G3, "g7", R_G7);
}

void
display_in_regs(struct ps_prochandle *ph, pstatus_t *prst)
{
	pstatus_t	pstatus;

	if (prst == NULL) {
		if (pread(ph->pp_statusfd, &pstatus, sizeof (pstatus),
		    0) == -1) {
			perror("dar: reading status");
			return;
		}
		prst = &pstatus;
	}
	(void) printf("ins:\n");
	disp_reg_line(ph, prst, "i0", R_I0, "i4", R_I4);
	disp_reg_line(ph, prst, "i1", R_I1, "i5", R_I5);
	disp_reg_line(ph, prst, "i2", R_I2, "i6(fp)", R_I6);
	disp_reg_line(ph, prst, "i3", R_I3, "i7", R_I7);

}

retc_t
display_all_regs(struct ps_prochandle *ph)
{
	pstatus_t	pstatus;

	if (pread(ph->pp_statusfd, &pstatus, sizeof (pstatus),
	    0) == -1) {
		perror("dar: reading status");
		return (RET_FAILED);
	}
	display_global_regs(ph, &pstatus);
	display_in_regs(ph, &pstatus);
	display_local_regs(ph, &pstatus);
	display_out_regs(ph, &pstatus);
	display_special_regs(ph, &pstatus);

	return (RET_OK);
}