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Commit af277149 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

powerpc: Improve prom_printf() 



Adds the ability to print decimal numbers and adds some more
format string variants

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent dd797738

arch/powerpc/kernel/prom_init.c

+25 −1
Original line number Diff line number Diff line
@@ -335,6 +335,7 @@ static void __init prom_printf(const char *format, ...) 
	const char *p, *q, *s;

	va_list args;

	unsigned long v;

	long vs;

	struct prom_t *_prom = &RELOC(prom);



	va_start(args, format);
@@ -368,12 +369,35 @@ static void __init prom_printf(const char *format, ...) 
			v = va_arg(args, unsigned long);

			prom_print_hex(v);

			break;

		case 'd':

			++q;

			vs = va_arg(args, int);

			if (vs < 0) {

				prom_print(RELOC("-"));

				vs = -vs;

			}

			prom_print_dec(vs);

			break;

		case 'l':

			++q;

			if (*q == 'u') { /* '%lu' */

			if (*q == 0)

				break;

			else if (*q == 'x') {

				++q;

				v = va_arg(args, unsigned long);

				prom_print_hex(v);

			} else if (*q == 'u') { /* '%lu' */

				++q;

				v = va_arg(args, unsigned long);

				prom_print_dec(v);

			} else if (*q == 'd') { /* %ld */

				++q;

				vs = va_arg(args, long);

				if (vs < 0) {

					prom_print(RELOC("-"));

					vs = -vs;

				}

				prom_print_dec(vs);

			}

			break;

		}