patch-2.1.80 linux/arch/arm/lib/testm.c

• Lines: 82
• Date: Tue Jan 20 16:39:42 1998
• Orig file: v2.1.79/linux/arch/arm/lib/testm.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.79/linux/arch/arm/lib/testm.c linux/arch/arm/lib/testm.c
@@ -0,0 +1,81 @@
+char buffer[1036];
+char buffer2[1036];
+
+int main ()
+{
+	char *p;
+	int i, o, o2, l;
+
+	printf ("Testing memset\n");
+	for (l = 1; l < 1020; l ++) {
+		for (o = 0; o < 4; o++) {
+			p = buffer + o + 4;
+			for (i = 0; i < l + 12; i++)
+				buffer[i] = 0x55;
+
+			memset (p, 0xaa, l);
+	
+			for (i = 0; i < l; i++)
+				if (p[i] != 0xaa)
+					printf ("Error: %X+%d\n", p, i);
+			if (p[-1] != 0x55 || p[-2] != 0x55 || p[-3] != 0x55 || p[-4] != 0x55)
+				printf ("Error before %X\n", p);
+			if (p[l] != 0x55 || p[l+1] != 0x55 || p[l+2] != 0x55 || p[l+3] != 0x55)
+				printf ("Error at end: %p: %02X %02X %02X %02X\n", p+l, p[l], p[l+1], p[l+2], p[l+3]);
+		}
+	}
+
+	printf ("Testing memcpy s > d\n");
+	for (l = 1; l < 1020; l++) {
+		for (o = 0; o < 4; o++) {
+			for (o2 = 0; o2 < 4; o2++) {
+				char *d, *s;
+
+				for (i = 0; i < l + 12; i++)
+					buffer[i] = (i & 0x3f) + 0x40;
+				for (i = 0; i < 1036; i++)
+					buffer2[i] = 0;
+
+				s = buffer + o;
+				d = buffer2 + o2 + 4;
+
+				memcpy (d, s, l);
+
+				for (i = 0; i < l; i++)
+					if (s[i] != d[i])
+						printf ("Error at %X+%d -> %X+%d (%02X != %02X)\n", s, i, d, i, s[i], d[i]);
+				if (d[-1] || d[-2] || d[-3] || d[-4])
+					printf ("Error before %X\n", d);
+				if (d[l] || d[l+1] || d[l+2] || d[l+3])
+					printf ("Error after %X\n", d+l);
+			}
+		}
+	}
+
+	printf ("Testing memcpy s < d\n");
+	for (l = 1; l < 1020; l++) {
+		for (o = 0; o < 4; o++) {
+			for (o2 = 0; o2 < 4; o2++) {
+				char *d, *s;
+
+				for (i = 0; i < l + 12; i++)
+					buffer2[i] = (i & 0x3f) + 0x40;
+				for (i = 0; i < 1036; i++)
+					buffer[i] = 0;
+
+				s = buffer2 + o;
+				d = buffer + o2 + 4;
+
+				memcpy (d, s, l);
+
+				for (i = 0; i < l; i++)
+					if (s[i] != d[i])
+						printf ("Error at %X+%d -> %X+%d (%02X != %02X)\n", s, i, d, i, s[i], d[i]);
+				if (d[-1] || d[-2] || d[-3] || d[-4])
+					printf ("Error before %X\n", d);
+				if (d[l] || d[l+1] || d[l+2] || d[l+3])
+					printf ("Error after %X\n", d+l);
+			}
+		}
+	}
+}