fdisk: reduce global data/bss usage. 8k data+bss build is achievable soon ;)
(add/remove: 0/13 grow/shrink: 6/19 up/down: 74/-492) Total: -418 bytes
text data bss dec hex filename
778330 860 7408 786598 c00a6 busybox_old
777970 840 7376 786186 bff0a busybox_unstripped
diff --git a/util-linux/fdisk_sun.c b/util-linux/fdisk_sun.c
index 274b103..fcd3818 100644
--- a/util-linux/fdisk_sun.c
+++ b/util-linux/fdisk_sun.c
@@ -84,7 +84,7 @@
{
sunlabel->infos[i].id = sysid;
sunlabel->partitions[i].start_cylinder =
- SUN_SSWAP32(start / (heads * sectors));
+ SUN_SSWAP32(start / (g_heads * g_sectors));
sunlabel->partitions[i].num_sectors =
SUN_SSWAP32(stop - start);
set_changed(i);
@@ -111,13 +111,13 @@
"e.g. heads, sectors, cylinders and partitions\n"
"or force a fresh label (s command in main menu)\n");
} else {
- heads = SUN_SSWAP16(sunlabel->ntrks);
- cylinders = SUN_SSWAP16(sunlabel->ncyl);
- sectors = SUN_SSWAP16(sunlabel->nsect);
+ g_heads = SUN_SSWAP16(sunlabel->ntrks);
+ g_cylinders = SUN_SSWAP16(sunlabel->ncyl);
+ g_sectors = SUN_SSWAP16(sunlabel->nsect);
}
update_units();
current_label_type = label_sun;
- partitions = 8;
+ g_partitions = 8;
return 1;
}
@@ -273,32 +273,32 @@
}
if (!p || floppy) {
if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
- heads = geometry.heads;
- sectors = geometry.sectors;
- cylinders = geometry.cylinders;
+ g_heads = geometry.heads;
+ g_sectors = geometry.sectors;
+ g_cylinders = geometry.cylinders;
} else {
- heads = 0;
- sectors = 0;
- cylinders = 0;
+ g_heads = 0;
+ g_sectors = 0;
+ g_cylinders = 0;
}
if (floppy) {
sunlabel->nacyl = 0;
- sunlabel->pcylcount = SUN_SSWAP16(cylinders);
+ sunlabel->pcylcount = SUN_SSWAP16(g_cylinders);
sunlabel->rspeed = SUN_SSWAP16(300);
sunlabel->ilfact = SUN_SSWAP16(1);
sunlabel->sparecyl = 0;
} else {
- heads = read_int(1, heads, 1024, 0, "Heads");
- sectors = read_int(1, sectors, 1024, 0, "Sectors/track");
- if (cylinders)
- cylinders = read_int(1, cylinders-2, 65535, 0, "Cylinders");
+ g_heads = read_int(1, g_heads, 1024, 0, "Heads");
+ g_sectors = read_int(1, g_sectors, 1024, 0, "Sectors/track");
+ if (g_cylinders)
+ g_cylinders = read_int(1, g_cylinders - 2, 65535, 0, "Cylinders");
else
- cylinders = read_int(1, 0, 65535, 0, "Cylinders");
+ g_cylinders = read_int(1, 0, 65535, 0, "Cylinders");
sunlabel->nacyl = SUN_SSWAP16(read_int(0, 2, 65535, 0, "Alternate cylinders"));
- sunlabel->pcylcount = SUN_SSWAP16(read_int(0, cylinders+SUN_SSWAP16(sunlabel->nacyl), 65535, 0, "Physical cylinders"));
+ sunlabel->pcylcount = SUN_SSWAP16(read_int(0, g_cylinders + SUN_SSWAP16(sunlabel->nacyl), 65535, 0, "Physical cylinders"));
sunlabel->rspeed = SUN_SSWAP16(read_int(1, 5400, 100000, 0, "Rotation speed (rpm)"));
sunlabel->ilfact = SUN_SSWAP16(read_int(1, 1, 32, 0, "Interleave factor"));
- sunlabel->sparecyl = SUN_SSWAP16(read_int(0, 0, sectors, 0, "Extra sectors per cylinder"));
+ sunlabel->sparecyl = SUN_SSWAP16(read_int(0, 0, g_sectors, 0, "Extra sectors per cylinder"));
}
} else {
sunlabel->sparecyl = SUN_SSWAP16(p->sparecyl);
@@ -309,9 +309,9 @@
sunlabel->nsect = SUN_SSWAP16(p->nsect);
sunlabel->rspeed = SUN_SSWAP16(p->rspeed);
sunlabel->ilfact = SUN_SSWAP16(1);
- cylinders = p->ncyl;
- heads = p->ntrks;
- sectors = p->nsect;
+ g_cylinders = p->ncyl;
+ g_heads = p->ntrks;
+ g_sectors = p->nsect;
puts("You may change all the disk params from the x menu");
}
@@ -319,23 +319,23 @@
"%s%s%s cyl %d alt %d hd %d sec %d",
p ? p->vendor : "", (p && *p->vendor) ? " " : "",
p ? p->model : (floppy ? "3,5\" floppy" : "Linux custom"),
- cylinders, SUN_SSWAP16(sunlabel->nacyl), heads, sectors);
+ g_cylinders, SUN_SSWAP16(sunlabel->nacyl), g_heads, g_sectors);
- sunlabel->ntrks = SUN_SSWAP16(heads);
- sunlabel->nsect = SUN_SSWAP16(sectors);
- sunlabel->ncyl = SUN_SSWAP16(cylinders);
+ sunlabel->ntrks = SUN_SSWAP16(g_heads);
+ sunlabel->nsect = SUN_SSWAP16(g_sectors);
+ sunlabel->ncyl = SUN_SSWAP16(g_cylinders);
if (floppy)
- set_sun_partition(0, 0, cylinders * heads * sectors, LINUX_NATIVE);
+ set_sun_partition(0, 0, g_cylinders * g_heads * g_sectors, LINUX_NATIVE);
else {
- if (cylinders * heads * sectors >= 150 * 2048) {
- ndiv = cylinders - (50 * 2048 / (heads * sectors)); /* 50M swap */
+ if (g_cylinders * g_heads * g_sectors >= 150 * 2048) {
+ ndiv = g_cylinders - (50 * 2048 / (g_heads * g_sectors)); /* 50M swap */
} else
- ndiv = cylinders * 2 / 3;
- set_sun_partition(0, 0, ndiv * heads * sectors, LINUX_NATIVE);
- set_sun_partition(1, ndiv * heads * sectors, cylinders * heads * sectors, LINUX_SWAP);
+ ndiv = g_cylinders * 2 / 3;
+ set_sun_partition(0, 0, ndiv * g_heads * g_sectors, LINUX_NATIVE);
+ set_sun_partition(1, ndiv * g_heads * g_sectors, g_cylinders * g_heads * g_sectors, LINUX_SWAP);
sunlabel->infos[1].flags |= 0x01; /* Not mountable */
}
- set_sun_partition(2, 0, cylinders * heads * sectors, SUN_WHOLE_DISK);
+ set_sun_partition(2, 0, g_cylinders * g_heads * g_sectors, SUN_WHOLE_DISK);
{
unsigned short *ush = (unsigned short *)sunlabel;
unsigned short csum = 0;
@@ -365,12 +365,12 @@
int i, continuous = 1;
*start = 0;
- *stop = cylinders * heads * sectors;
- for (i = 0; i < partitions; i++) {
+ *stop = g_cylinders * g_heads * g_sectors;
+ for (i = 0; i < g_partitions; i++) {
if (sunlabel->partitions[i].num_sectors
&& sunlabel->infos[i].id
&& sunlabel->infos[i].id != SUN_WHOLE_DISK) {
- starts[i] = SUN_SSWAP32(sunlabel->partitions[i].start_cylinder) * heads * sectors;
+ starts[i] = SUN_SSWAP32(sunlabel->partitions[i].start_cylinder) * g_heads * g_sectors;
lens[i] = SUN_SSWAP32(sunlabel->partitions[i].num_sectors);
if (continuous) {
if (starts[i] == *start)
@@ -408,10 +408,10 @@
int array[8];
verify_sun_starts = starts;
- fetch_sun(starts,lens,&start,&stop);
+ fetch_sun(starts, lens, &start, &stop);
for (k = 0; k < 7; k++) {
for (i = 0; i < 8; i++) {
- if (k && (lens[i] % (heads * sectors))) {
+ if (k && (lens[i] % (g_heads * g_sectors))) {
printf("Partition %d doesn't end on cylinder boundary\n", i+1);
}
if (lens[i]) {
@@ -452,7 +452,7 @@
printf("No partitions defined\n");
return;
}
- stop = cylinders * heads * sectors;
+ stop = g_cylinders * g_heads * g_sectors;
if (starts[array[0]])
printf("Unused gap - sectors 0-%d\n", starts[array[0]]);
for (i = 0; i < 7 && array[i+1] != -1; i++) {
@@ -499,7 +499,7 @@
first *= units_per_sector;
else
/* Starting sector has to be properly aligned */
- first = (first + heads * sectors - 1) / (heads * sectors);
+ first = (first + g_heads * g_sectors - 1) / (g_heads * g_sectors);
if (n == 2 && first != 0)
printf("\
It is highly recommended that the third partition covers the whole disk\n\
@@ -520,10 +520,10 @@
/* On the other hand, one should not use partitions
starting at block 0 in an md, or the label will
be trashed. */
- for (i = 0; i < partitions; i++)
+ for (i = 0; i < g_partitions; i++)
if (lens[i] && starts[i] <= first && starts[i] + lens[i] > first)
break;
- if (i < partitions && !whole_disk) {
+ if (i < g_partitions && !whole_disk) {
if (n == 2 && !first) {
whole_disk = 1;
break;
@@ -532,9 +532,9 @@
} else
break;
}
- stop = cylinders * heads * sectors;
+ stop = g_cylinders * g_heads * g_sectors;
stop2 = stop;
- for (i = 0; i < partitions; i++) {
+ for (i = 0; i < g_partitions; i++) {
if (starts[i] > first && starts[i] < stop)
stop = starts[i];
}
@@ -581,7 +581,7 @@
if (i == 2
&& sunlabel->infos[i].id == SUN_WHOLE_DISK
&& !sunlabel->partitions[i].start_cylinder
- && (nsec = SUN_SSWAP32(sunlabel->partitions[i].num_sectors)) == heads * sectors * cylinders)
+ && (nsec = SUN_SSWAP32(sunlabel->partitions[i].num_sectors)) == g_heads * g_sectors * g_cylinders)
printf("If you want to maintain SunOS/Solaris compatibility, "
"consider leaving this\n"
"partition as Whole disk (5), starting at 0, with %u "
@@ -631,8 +631,8 @@
"%d extra sects/cyl, interleave %d:1\n"
"%s\n"
"Units = %s of %d * 512 bytes\n\n",
- disk_device, heads, sectors, SUN_SSWAP16(sunlabel->rspeed),
- cylinders, SUN_SSWAP16(sunlabel->nacyl),
+ disk_device, g_heads, g_sectors, SUN_SSWAP16(sunlabel->rspeed),
+ g_cylinders, SUN_SSWAP16(sunlabel->nacyl),
SUN_SSWAP16(sunlabel->pcylcount),
SUN_SSWAP16(sunlabel->sparecyl),
SUN_SSWAP16(sunlabel->ilfact),
@@ -642,14 +642,14 @@
printf(
"\nDisk %s (Sun disk label): %d heads, %d sectors, %d cylinders\n"
"Units = %s of %d * 512 bytes\n\n",
- disk_device, heads, sectors, cylinders,
+ disk_device, g_heads, g_sectors, g_cylinders,
str_units(PLURAL), units_per_sector);
printf("%*s Flag Start End Blocks Id System\n",
w + 1, "Device");
- for (i = 0; i < partitions; i++) {
+ for (i = 0; i < g_partitions; i++) {
if (sunlabel->partitions[i].num_sectors) {
- uint32_t start = SUN_SSWAP32(sunlabel->partitions[i].start_cylinder) * heads * sectors;
+ uint32_t start = SUN_SSWAP32(sunlabel->partitions[i].start_cylinder) * g_heads * g_sectors;
uint32_t len = SUN_SSWAP32(sunlabel->partitions[i].num_sectors);
printf("%s %c%c %9ld %9ld %9ld%c %2x %s\n",
partname(disk_device, i+1, w), /* device */
@@ -684,7 +684,7 @@
sun_set_xcyl(void)
{
sunlabel->sparecyl =
- SUN_SSWAP16(read_int(0, SUN_SSWAP16(sunlabel->sparecyl), sectors, 0,
+ SUN_SSWAP16(read_int(0, SUN_SSWAP16(sunlabel->sparecyl), g_sectors, 0,
"Extra sectors per cylinder"));
}