view target-utils/libcommon/cmd_memdump_human.c @ 619:f82551c77e58

libserial-newlnx: ASYNC_LOW_LATENCY patch reverted Reports from Das Signal indicate that loadtools performance on Debian is about the same as on Slackware, and that including or omitting the ASYNC_LOW_LATENCY patch from Serg makes no difference. Because the patch in question does not appear to be necessary, it is being reverted until and unless someone other than Serg reports an actual real-world system on which loadtools operation times are slowed compared to the Mother's Slackware reference and on which Slackware-like performance can be restored by setting the ASYNC_LOW_LATENCY flag.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 27 Feb 2020 01:09:48 +0000
parents 9214118ae941
children
line wrap: on
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/*
 * This is a human-oriented memory dump command.  The dump is given in
 * both hex and ASCII, with readable spacing.
 */

#include <sys/types.h>
#include "types.h"

void
cmd_memdump_human(argbulk)
	char *argbulk;
{
	char *argv[3];
	u_long start, length;
	u_long offset;
	u_char intbuf[16];
	int i, c;

	if (parse_args(argbulk, 2, 2, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 8, &start) < 0) {
		printf("ERROR: arg1 must be a valid 32-bit hex address\n");
		return;
	}
	if (parse_hexarg(argv[1], 8, &length) < 0) {
	    printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n");
		return;
	}
	if (start & 0xF || length & 0xF) {
	    printf("ERROR: implementation limit: 16-byte alignment required\n");
		return;
	}
	for (offset = 0; offset < length; offset += 0x10) {
		memcpy(intbuf, start + offset, 0x10);
		printf("%08X: ", start + offset);
		for (i = 0; i < 16; i++) {
			printf("%02X ", intbuf[i]);
			if ((i & 3) == 3)
				putchar(' ');
		}
		for (i = 0; i < 16; i++) {
			c = intbuf[i];
			if (c >= ' ' && c <= '~')
				putchar(c);
			else
				putchar('.');
		}
		putchar('\n');
	}
}