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
This commit is contained in:
Denis Vlasenko 2007-12-16 17:22:33 +00:00
parent c794c51a1a
commit f77f369ce8
5 changed files with 225 additions and 213 deletions

View File

@ -57,18 +57,6 @@ static const char msg_part_already_defined[] ALIGN1 =
"Partition %d is already defined, delete it before re-adding\n";
static unsigned sector_size = DEFAULT_SECTOR_SIZE;
static unsigned user_set_sector_size;
static unsigned sector_offset = 1;
#if ENABLE_FEATURE_OSF_LABEL
static int possibly_osf_label;
#endif
static unsigned heads, sectors, cylinders;
static void update_units(void);
struct partition {
unsigned char boot_ind; /* 0x80 - active */
unsigned char head; /* starting head */
@ -129,13 +117,7 @@ enum label_type {
enum action { fdisk, require, try_only, create_empty_dos, create_empty_sun };
static enum label_type current_label_type;
static const char *disk_device;
static int fd; /* the disk */
static int partitions = 4; /* maximum partition + 1 */
static int display_in_cyl_units = 1;
static unsigned units_per_sector = 1;
static void update_units(void);
#if ENABLE_FEATURE_FDISK_WRITABLE
static void change_units(void);
static void reread_partition_table(int leave);
@ -282,28 +264,60 @@ static const char *const i386_sys_types[] = {
struct globals {
char *line_ptr;
const char *disk_device;
int fd; /* the disk */
int g_partitions; // = 4; /* maximum partition + 1 */
unsigned units_per_sector; // = 1;
unsigned sector_size; // = DEFAULT_SECTOR_SIZE;
unsigned user_set_sector_size;
unsigned sector_offset; // = 1;
unsigned g_heads, g_sectors, g_cylinders;
enum label_type current_label_type;
smallint display_in_cyl_units; // = 1;
#if ENABLE_FEATURE_OSF_LABEL
smallint possibly_osf_label;
#endif
jmp_buf listingbuf;
char line_buffer[80];
char partname_buffer[80];
jmp_buf listingbuf;
/* Raw disk label. For DOS-type partition tables the MBR,
* with descriptions of the primary partitions. */
char MBRbuffer[MAX_SECTOR_SIZE];
/* Partition tables */
struct pte ptes[MAXIMUM_PARTS];
};
/* bb_common_bufsiz1 is too small for this on 64 bit CPUs */
#define G (*ptr_to_globals)
#define line_ptr (G.line_ptr)
#define disk_device (G.disk_device )
#define fd (G.fd )
#define g_partitions (G.g_partitions )
#define units_per_sector (G.units_per_sector )
#define sector_size (G.sector_size )
#define user_set_sector_size (G.user_set_sector_size)
#define sector_offset (G.sector_offset )
#define g_heads (G.g_heads )
#define g_sectors (G.g_sectors )
#define g_cylinders (G.g_cylinders )
#define current_label_type (G.current_label_type )
#define display_in_cyl_units (G.display_in_cyl_units)
#define possibly_osf_label (G.possibly_osf_label )
#define listingbuf (G.listingbuf)
#define line_buffer (G.line_buffer)
#define partname_buffer (G.partname_buffer)
#define MBRbuffer (G.MBRbuffer)
#define ptes (G.ptes)
#define INIT_G() do { \
PTR_TO_GLOBALS = xzalloc(sizeof(G)); \
sector_size = DEFAULT_SECTOR_SIZE; \
sector_offset = 1; \
g_partitions = 4; \
display_in_cyl_units = 1; \
units_per_sector = 1; \
} while (0)
/* Code */
#define IS_EXTENDED(i) \
((i) == EXTENDED || (i) == WIN98_EXTENDED || (i) == LINUX_EXTENDED)
@ -323,10 +337,10 @@ struct globals {
#define set_hsc(h,s,c,sector) \
do { \
s = sector % sectors + 1; \
sector /= sectors; \
h = sector % heads; \
sector /= heads; \
s = sector % g_sectors + 1; \
sector /= g_sectors; \
h = sector % g_heads; \
sector /= g_heads; \
c = sector & 0xff; \
s |= (sector >> 2) & 0xc0; \
} while (0)
@ -611,11 +625,11 @@ get_nr_sects(const struct partition *p)
static int type_open = O_RDWR;
static int ext_index; /* the prime extended partition */
static int listing; /* no aborts for fdisk -l */
static smallint listing; /* no aborts for fdisk -l */
static int dos_compatible_flag = ~0;
#if ENABLE_FEATURE_FDISK_WRITABLE
static int dos_changed;
static int nowarn; /* no warnings for fdisk -l/-s */
//static int dos_changed;
static smallint nowarn; /* no warnings for fdisk -l/-s */
#endif
static unsigned user_cylinders, user_heads, user_sectors;
@ -930,11 +944,11 @@ set_partition(int i, int doext, ullong start, ullong stop, int sysid)
p->sys_ind = sysid;
set_start_sect(p, start - offset);
set_nr_sects(p, stop - start + 1);
if (dos_compatible_flag && (start/(sectors*heads) > 1023))
start = heads*sectors*1024 - 1;
if (dos_compatible_flag && (start / (g_sectors * g_heads) > 1023))
start = g_heads * g_sectors * 1024 - 1;
set_hsc(p->head, p->sector, p->cyl, start);
if (dos_compatible_flag && (stop/(sectors*heads) > 1023))
stop = heads*sectors*1024 - 1;
if (dos_compatible_flag && (stop / (g_sectors * g_heads) > 1023))
stop = g_heads * g_sectors * 1024 - 1;
set_hsc(p->end_head, p->end_sector, p->end_cyl, stop);
ptes[i].changed = 1;
}
@ -943,15 +957,15 @@ set_partition(int i, int doext, ullong start, ullong stop, int sysid)
static int
warn_geometry(void)
{
if (heads && sectors && cylinders)
if (g_heads && g_sectors && g_cylinders)
return 0;
printf("Unknown value(s) for:");
if (!heads)
if (!g_heads)
printf(" heads");
if (!sectors)
if (!g_sectors)
printf(" sectors");
if (!cylinders)
if (!g_cylinders)
printf(" cylinders");
printf(
#if ENABLE_FEATURE_FDISK_WRITABLE
@ -964,7 +978,7 @@ warn_geometry(void)
static void
update_units(void)
{
int cyl_units = heads * sectors;
int cyl_units = g_heads * g_sectors;
if (display_in_cyl_units && cyl_units)
units_per_sector = cyl_units;
@ -976,7 +990,7 @@ update_units(void)
static void
warn_cylinders(void)
{
if (LABEL_IS_DOS && cylinders > 1024 && !nowarn)
if (LABEL_IS_DOS && g_cylinders > 1024 && !nowarn)
printf("\n"
"The number of cylinders for this disk is set to %d.\n"
"There is nothing wrong with that, but this is larger than 1024,\n"
@ -984,7 +998,7 @@ warn_cylinders(void)
"1) software that runs at boot time (e.g., old versions of LILO)\n"
"2) booting and partitioning software from other OSs\n"
" (e.g., DOS FDISK, OS/2 FDISK)\n",
cylinders);
g_cylinders);
}
#endif
@ -1006,16 +1020,16 @@ read_extended(int ext)
}
while (IS_EXTENDED(p->sys_ind)) {
struct pte *pe = &ptes[partitions];
struct pte *pe = &ptes[g_partitions];
if (partitions >= MAXIMUM_PARTS) {
if (g_partitions >= MAXIMUM_PARTS) {
/* This is not a Linux restriction, but
this program uses arrays of size MAXIMUM_PARTS.
Do not try to 'improve' this test. */
struct pte *pre = &ptes[partitions-1];
struct pte *pre = &ptes[g_partitions - 1];
#if ENABLE_FEATURE_FDISK_WRITABLE
printf("Warning: deleting partitions after %d\n",
partitions);
g_partitions);
pre->changed = 1;
#endif
clear_partition(pre->ext_pointer);
@ -1033,14 +1047,14 @@ read_extended(int ext)
if (pe->ext_pointer)
printf("Warning: extra link "
"pointer in partition table"
" %d\n", partitions + 1);
" %d\n", g_partitions + 1);
else
pe->ext_pointer = p;
} else if (p->sys_ind) {
if (pe->part_table)
printf("Warning: ignoring extra "
"data in partition table"
" %d\n", partitions + 1);
" %d\n", g_partitions + 1);
else
pe->part_table = p;
}
@ -1061,17 +1075,17 @@ read_extended(int ext)
}
p = pe->ext_pointer;
partitions++;
g_partitions++;
}
#if ENABLE_FEATURE_FDISK_WRITABLE
/* remove empty links */
remove:
for (i = 4; i < partitions; i++) {
for (i = 4; i < g_partitions; i++) {
struct pte *pe = &ptes[i];
if (!get_nr_sects(pe->part_table)
&& (partitions > 5 || ptes[4].part_table->sys_ind)
&& (g_partitions > 5 || ptes[4].part_table->sys_ind)
) {
printf("Omitting empty partition (%d)\n", i+1);
delete_partition(i);
@ -1094,7 +1108,7 @@ create_doslabel(void)
#if ENABLE_FEATURE_OSF_LABEL
possibly_osf_label = 0;
#endif
partitions = 4;
g_partitions = 4;
for (i = 510-64; i < 510; i++)
MBRbuffer[i] = 0;
@ -1175,17 +1189,17 @@ get_geometry(void)
#if ENABLE_FEATURE_SUN_LABEL
guess_device_type();
#endif
heads = cylinders = sectors = 0;
g_heads = g_cylinders = g_sectors = 0;
kern_heads = kern_sectors = 0;
pt_heads = pt_sectors = 0;
get_kernel_geometry();
get_partition_table_geometry();
heads = user_heads ? user_heads :
g_heads = user_heads ? user_heads :
pt_heads ? pt_heads :
kern_heads ? kern_heads : 255;
sectors = user_sectors ? user_sectors :
g_sectors = user_sectors ? user_sectors :
pt_sectors ? pt_sectors :
kern_sectors ? kern_sectors : 63;
if (ioctl(fd, BLKGETSIZE64, &v64) == 0) {
@ -1200,11 +1214,11 @@ get_geometry(void)
sector_offset = 1;
if (dos_compatible_flag)
sector_offset = sectors;
sector_offset = g_sectors;
cylinders = total_number_of_sectors / (heads * sectors * sec_fac);
if (!cylinders)
cylinders = user_cylinders;
g_cylinders = total_number_of_sectors / (g_heads * g_sectors * sec_fac);
if (!g_cylinders)
g_cylinders = user_cylinders;
}
/*
@ -1218,7 +1232,7 @@ get_boot(enum action what)
{
int i;
partitions = 4;
g_partitions = 4;
for (i = 0; i < 4; i++) {
struct pte *pe = &ptes[i];
@ -1342,7 +1356,7 @@ get_boot(enum action what)
struct pte *pe = &ptes[i];
if (IS_EXTENDED(pe->part_table->sys_ind)) {
if (partitions != 4)
if (g_partitions != 4)
printf("Ignoring extra extended "
"partition %d\n", i + 1);
else
@ -1350,7 +1364,7 @@ get_boot(enum action what)
}
}
for (i = 3; i < partitions; i++) {
for (i = 3; i < g_partitions; i++) {
struct pte *pe = &ptes[i];
if (!valid_part_table_flag(pe->sectorbuffer)) {
@ -1411,7 +1425,7 @@ read_int(unsigned low, unsigned dflt, unsigned high, unsigned base, const char *
case 'c':
case 'C':
if (!display_in_cyl_units)
i *= heads * sectors;
i *= g_heads * g_sectors;
break;
case 'K':
absolute = 1024;
@ -1562,7 +1576,7 @@ toggle_dos_compatibility_flag(void)
{
dos_compatible_flag = ~dos_compatible_flag;
if (dos_compatible_flag) {
sector_offset = sectors;
sector_offset = g_sectors;
printf("DOS Compatibility flag is set\n");
} else {
sector_offset = 1;
@ -1596,7 +1610,7 @@ delete_partition(int i)
if (i < 4) {
if (IS_EXTENDED(p->sys_ind) && i == ext_index) {
partitions = 4;
g_partitions = 4;
ptes[ext_index].ext_pointer = NULL;
extended_offset = 0;
}
@ -1606,7 +1620,7 @@ delete_partition(int i)
if (!q->sys_ind && i > 4) {
/* the last one in the chain - just delete */
--partitions;
--g_partitions;
--i;
clear_partition(ptes[i].ext_pointer);
ptes[i].changed = 1;
@ -1619,7 +1633,7 @@ delete_partition(int i)
set_start_sect(p, get_start_sect(q));
set_nr_sects(p, get_nr_sects(q));
ptes[i-1].changed = 1;
} else if (partitions > 5) { /* 5 will be moved to 4 */
} else if (g_partitions > 5) { /* 5 will be moved to 4 */
/* the first logical in a longer chain */
pe = &ptes[5];
@ -1631,9 +1645,9 @@ delete_partition(int i)
pe->changed = 1;
}
if (partitions > 5) {
partitions--;
while (i < partitions) {
if (g_partitions > 5) {
g_partitions--;
while (i < g_partitions) {
ptes[i] = ptes[i+1];
i++;
}
@ -1653,9 +1667,9 @@ change_sysid(void)
let the user select a partition, since get_existing_partition()
only works for Linux like partition tables. */
if (!LABEL_IS_SGI) {
i = get_existing_partition(0, partitions);
i = get_existing_partition(0, g_partitions);
} else {
i = get_partition(0, partitions);
i = get_partition(0, g_partitions);
}
if (i == -1)
return;
@ -1722,7 +1736,7 @@ change_sysid(void)
ptes[i].changed = 1;
if (is_dos_partition(origsys) ||
is_dos_partition(sys))
dos_changed = 1;
//dos_changed = 1;
break;
}
}
@ -1738,12 +1752,12 @@ change_sysid(void)
static void
linear2chs(unsigned ls, unsigned *c, unsigned *h, unsigned *s)
{
int spc = heads * sectors;
int spc = g_heads * g_sectors;
*c = ls / spc;
ls = ls % spc;
*h = ls / sectors;
*s = ls % sectors + 1; /* sectors count from 1 */
*h = ls / g_sectors;
*s = ls % g_sectors + 1; /* sectors count from 1 */
}
static void
@ -1754,7 +1768,7 @@ check_consistency(const struct partition *p, int partition)
unsigned lbc, lbh, lbs; /* logical beginning c, h, s */
unsigned lec, leh, les; /* logical ending c, h, s */
if (!heads || !sectors || (partition >= 4))
if (!g_heads || !g_sectors || (partition >= 4))
return; /* do not check extended partitions */
/* physical beginning c, h, s */
@ -1774,7 +1788,7 @@ check_consistency(const struct partition *p, int partition)
linear2chs(get_start_sect(p) + get_nr_sects(p) - 1, &lec, &leh, &les);
/* Same physical / logical beginning? */
if (cylinders <= 1024 && (pbc != lbc || pbh != lbh || pbs != lbs)) {
if (g_cylinders <= 1024 && (pbc != lbc || pbh != lbh || pbs != lbs)) {
printf("Partition %d has different physical/logical "
"beginnings (non-Linux?):\n", partition + 1);
printf(" phys=(%d, %d, %d) ", pbc, pbh, pbs);
@ -1782,7 +1796,7 @@ check_consistency(const struct partition *p, int partition)
}
/* Same physical / logical ending? */
if (cylinders <= 1024 && (pec != lec || peh != leh || pes != les)) {
if (g_cylinders <= 1024 && (pec != lec || peh != leh || pes != les)) {
printf("Partition %d has different physical/logical "
"endings:\n", partition + 1);
printf(" phys=(%d, %d, %d) ", pec, peh, pes);
@ -1790,7 +1804,7 @@ check_consistency(const struct partition *p, int partition)
}
/* Ending on cylinder boundary? */
if (peh != (heads - 1) || pes != sectors) {
if (peh != (g_heads - 1) || pes != g_sectors) {
printf("Partition %i does not end on cylinder boundary\n",
partition + 1);
}
@ -1809,7 +1823,7 @@ list_disk_geometry(void)
printf("\nDisk %s: %ld.%ld GB, %lld bytes\n",
disk_device, megabytes/1000, (megabytes/100)%10, bytes);
printf("%d heads, %d sectors/track, %d cylinders",
heads, sectors, cylinders);
g_heads, g_sectors, g_cylinders);
if (units_per_sector == 1)
printf(", total %llu sectors",
total_number_of_sectors / (sector_size/512));
@ -1831,7 +1845,7 @@ wrong_p_order(int *prev)
ullong last_p_start_pos = 0, p_start_pos;
int i, last_i = 0;
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
if (i == 4) {
last_i = 4;
last_p_start_pos = 0;
@ -1877,7 +1891,7 @@ fix_chain_of_logicals(void)
/* Stage 1: sort sectors but leave sector of part 4 */
/* (Its sector is the global extended_offset.) */
stage1:
for (j = 5; j < partitions-1; j++) {
for (j = 5; j < g_partitions - 1; j++) {
oj = ptes[j].offset;
ojj = ptes[j+1].offset;
if (oj > ojj) {
@ -1897,7 +1911,7 @@ fix_chain_of_logicals(void)
/* Stage 2: sort starting sectors */
stage2:
for (j = 4; j < partitions-1; j++) {
for (j = 4; j < g_partitions - 1; j++) {
pj = ptes[j].part_table;
pjj = ptes[j+1].part_table;
sj = get_start_sect(pj);
@ -1915,7 +1929,7 @@ fix_chain_of_logicals(void)
}
/* Probably something was changed */
for (j = 4; j < partitions; j++)
for (j = 4; j < g_partitions; j++)
ptes[j].changed = 1;
}
@ -1995,7 +2009,7 @@ list_table(int xtra)
printf("%*s Boot Start End Blocks Id System\n",
w+1, "Device");
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
const struct pte *pe = &ptes[i];
ullong psects;
ullong pblocks;
@ -2048,9 +2062,9 @@ x_list_table(int extend)
int i;
printf("\nDisk %s: %d heads, %d sectors, %d cylinders\n\n",
disk_device, heads, sectors, cylinders);
disk_device, g_heads, g_sectors, g_cylinders);
printf("Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID\n");
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
pe = &ptes[i];
p = (extend ? pe->ext_pointer : pe->part_table);
if (p != NULL) {
@ -2076,7 +2090,7 @@ fill_bounds(ullong *first, ullong *last)
const struct pte *pe = &ptes[0];
const struct partition *p;
for (i = 0; i < partitions; pe++,i++) {
for (i = 0; i < g_partitions; pe++,i++) {
p = pe->part_table;
if (!p->sys_ind || IS_EXTENDED(p->sys_ind)) {
first[i] = 0xffffffff;
@ -2095,19 +2109,19 @@ check(int n, unsigned h, unsigned s, unsigned c, ullong start)
real_s = sector(s) - 1;
real_c = cylinder(s, c);
total = (real_c * sectors + real_s) * heads + h;
total = (real_c * g_sectors + real_s) * g_heads + h;
if (!total)
printf("Partition %d contains sector 0\n", n);
if (h >= heads)
if (h >= g_heads)
printf("Partition %d: head %d greater than maximum %d\n",
n, h + 1, heads);
if (real_s >= sectors)
n, h + 1, g_heads);
if (real_s >= g_sectors)
printf("Partition %d: sector %d greater than "
"maximum %d\n", n, s, sectors);
if (real_c >= cylinders)
"maximum %d\n", n, s, g_sectors);
if (real_c >= g_cylinders)
printf("Partition %d: cylinder %llu greater than "
"maximum %d\n", n, real_c + 1, cylinders);
if (cylinders <= 1024 && start != total)
"maximum %d\n", n, real_c + 1, g_cylinders);
if (g_cylinders <= 1024 && start != total)
printf("Partition %d: previous sectors %llu disagrees with "
"total %llu\n", n, start, total);
}
@ -2117,7 +2131,7 @@ verify(void)
{
int i, j;
unsigned total = 1;
ullong first[partitions], last[partitions];
ullong first[g_partitions], last[g_partitions];
struct partition *p;
if (warn_geometry())
@ -2133,7 +2147,7 @@ verify(void)
}
fill_bounds(first, last);
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
struct pte *pe = &ptes[i];
p = pe->part_table;
@ -2164,11 +2178,11 @@ verify(void)
ullong e_last = get_start_sect(pex->part_table) +
get_nr_sects(pex->part_table) - 1;
for (i = 4; i < partitions; i++) {
for (i = 4; i < g_partitions; i++) {
total++;
p = ptes[i].part_table;
if (!p->sys_ind) {
if (i != 4 || i + 1 < partitions)
if (i != 4 || i + 1 < g_partitions)
printf("Warning: partition %d "
"is empty\n", i + 1);
} else if (first[i] < extended_offset || last[i] > e_last) {
@ -2178,11 +2192,11 @@ verify(void)
}
}
if (total > heads * sectors * cylinders)
if (total > g_heads * g_sectors * g_cylinders)
printf("Total allocated sectors %d greater than the maximum "
"%d\n", total, heads * sectors * cylinders);
"%d\n", total, g_heads * g_sectors * g_cylinders);
else {
total = heads * sectors * cylinders - total;
total = g_heads * g_sectors * g_cylinders - total;
if (total != 0)
printf("%d unallocated sectors\n", total);
}
@ -2197,7 +2211,7 @@ add_partition(int n, int sys)
struct partition *q = ptes[ext_index].part_table;
ullong limit, temp;
ullong start, stop = 0;
ullong first[partitions], last[partitions];
ullong first[g_partitions], last[g_partitions];
if (p && p->sys_ind) {
printf(msg_part_already_defined, n + 1);
@ -2207,7 +2221,7 @@ add_partition(int n, int sys)
if (n < 4) {
start = sector_offset;
if (display_in_cyl_units || !total_number_of_sectors)
limit = (ullong) heads * sectors * cylinders - 1;
limit = (ullong) g_heads * g_sectors * g_cylinders - 1;
else
limit = total_number_of_sectors - 1;
if (extended_offset) {
@ -2220,13 +2234,13 @@ add_partition(int n, int sys)
limit = get_start_sect(q) + get_nr_sects(q) - 1;
}
if (display_in_cyl_units)
for (i = 0; i < partitions; i++)
for (i = 0; i < g_partitions; i++)
first[i] = (cround(first[i]) - 1) * units_per_sector;
snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR));
do {
temp = start;
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
int lastplusoff;
if (start == ptes[i].offset)
@ -2266,7 +2280,7 @@ add_partition(int n, int sys)
}
}
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
struct pte *pe = &ptes[i];
if (start < pe->offset && limit >= pe->offset)
@ -2277,7 +2291,7 @@ add_partition(int n, int sys)
if (start > limit) {
printf("No free sectors available\n");
if (n > 4)
partitions--;
g_partitions--;
return;
}
if (cround(start) == cround(limit)) {
@ -2310,24 +2324,24 @@ add_partition(int n, int sys)
pe4->part_table = pt_offset(pe4->sectorbuffer, 0);
pe4->ext_pointer = pe4->part_table + 1;
pe4->changed = 1;
partitions = 5;
g_partitions = 5;
}
}
static void
add_logical(void)
{
if (partitions > 5 || ptes[4].part_table->sys_ind) {
struct pte *pe = &ptes[partitions];
if (g_partitions > 5 || ptes[4].part_table->sys_ind) {
struct pte *pe = &ptes[g_partitions];
pe->sectorbuffer = xzalloc(sector_size);
pe->part_table = pt_offset(pe->sectorbuffer, 0);
pe->ext_pointer = pe->part_table + 1;
pe->offset = 0;
pe->changed = 1;
partitions++;
g_partitions++;
}
add_partition(partitions - 1, LINUX_NATIVE);
add_partition(g_partitions - 1, LINUX_NATIVE);
}
static void
@ -2339,11 +2353,11 @@ new_partition(void)
return;
if (LABEL_IS_SUN) {
add_sun_partition(get_partition(0, partitions), LINUX_NATIVE);
add_sun_partition(get_partition(0, g_partitions), LINUX_NATIVE);
return;
}
if (LABEL_IS_SGI) {
sgi_add_partition(get_partition(0, partitions), LINUX_NATIVE);
sgi_add_partition(get_partition(0, g_partitions), LINUX_NATIVE);
return;
}
if (LABEL_IS_AIX) {
@ -2356,7 +2370,7 @@ new_partition(void)
for (i = 0; i < 4; i++)
free_primary += !ptes[i].part_table->sys_ind;
if (!free_primary && partitions >= MAXIMUM_PARTS) {
if (!free_primary && g_partitions >= MAXIMUM_PARTS) {
printf("The maximum number of partitions has been created\n");
return;
}
@ -2408,7 +2422,7 @@ write_table(void)
for (i = 0; i < 3; i++)
if (ptes[i].changed)
ptes[3].changed = 1;
for (i = 3; i < partitions; i++) {
for (i = 3; i < g_partitions; i++) {
struct pte *pe = &ptes[i];
if (pe->changed) {
@ -2492,7 +2506,7 @@ print_raw(void)
if (LABEL_IS_SGI || LABEL_IS_SUN)
print_buffer(MBRbuffer);
else {
for (i = 3; i < partitions; i++)
for (i = 3; i < g_partitions; i++)
print_buffer(ptes[i].sectorbuffer);
}
}
@ -2537,14 +2551,14 @@ xselect(void)
break;
case 'b':
if (LABEL_IS_DOS)
move_begin(get_partition(0, partitions));
move_begin(get_partition(0, g_partitions));
break;
case 'c':
user_cylinders = cylinders =
read_int(1, cylinders, 1048576, 0,
user_cylinders = g_cylinders =
read_int(1, g_cylinders, 1048576, 0,
"Number of cylinders");
if (LABEL_IS_SUN)
sun_set_ncyl(cylinders);
sun_set_ncyl(g_cylinders);
if (LABEL_IS_DOS)
warn_cylinders();
break;
@ -2569,7 +2583,7 @@ xselect(void)
#endif
break;
case 'h':
user_heads = heads = read_int(1, heads, 256, 0,
user_heads = g_heads = read_int(1, g_heads, 256, 0,
"Number of heads");
update_units();
break;
@ -2594,10 +2608,10 @@ xselect(void)
case 'r':
return;
case 's':
user_sectors = sectors = read_int(1, sectors, 63, 0,
user_sectors = g_sectors = read_int(1, g_sectors, 63, 0,
"Number of sectors");
if (dos_compatible_flag) {
sector_offset = sectors;
sector_offset = g_sectors;
printf("Warning: setting sector offset for DOS "
"compatiblity\n");
}
@ -2686,7 +2700,7 @@ trydev(const char *device, int user_specified)
close(fd);
list_table(0);
#if ENABLE_FEATURE_FDISK_WRITABLE
if (!LABEL_IS_SUN && partitions > 4){
if (!LABEL_IS_SUN && g_partitions > 4){
delete_partition(ext_index);
}
#endif
@ -2759,7 +2773,7 @@ int fdisk_main(int argc, char **argv)
OPT_s = (1 << 6) * ENABLE_FEATURE_FDISK_BLKSIZE,
};
PTR_TO_GLOBALS = xzalloc(sizeof(G));
INIT_G();
opt = getopt32(argv, "b:C:H:lS:u" USE_FEATURE_FDISK_BLKSIZE("s"),
&str_b, &str_C, &str_H, &str_S);
@ -2873,13 +2887,13 @@ int fdisk_main(int argc, char **argv)
switch (c) {
case 'a':
if (LABEL_IS_DOS)
toggle_active(get_partition(1, partitions));
toggle_active(get_partition(1, g_partitions));
else if (LABEL_IS_SUN)
toggle_sunflags(get_partition(1, partitions),
toggle_sunflags(get_partition(1, g_partitions),
0x01);
else if (LABEL_IS_SGI)
sgi_set_bootpartition(
get_partition(1, partitions));
get_partition(1, g_partitions));
else
unknown_command(c);
break;
@ -2902,11 +2916,11 @@ int fdisk_main(int argc, char **argv)
if (LABEL_IS_DOS)
toggle_dos_compatibility_flag();
else if (LABEL_IS_SUN)
toggle_sunflags(get_partition(1, partitions),
toggle_sunflags(get_partition(1, g_partitions),
0x10);
else if (LABEL_IS_SGI)
sgi_set_swappartition(
get_partition(1, partitions));
get_partition(1, g_partitions));
else
unknown_command(c);
break;
@ -2918,9 +2932,9 @@ int fdisk_main(int argc, char **argv)
get_existing_partition() only works for Linux-like
partition tables */
if (!LABEL_IS_SGI) {
j = get_existing_partition(1, partitions);
j = get_existing_partition(1, g_partitions);
} else {
j = get_partition(1, partitions);
j = get_partition(1, g_partitions);
}
if (j >= 0)
delete_partition(j);

View File

@ -63,7 +63,7 @@ check_aix_label(void)
aix_other_endian = (aixlabel->magic == AIX_LABEL_MAGIC_SWAPPED);
update_units();
current_label_type = label_aix;
partitions = 1016;
g_partitions = 1016;
aix_volumes = 15;
aix_info();
/*aix_nolabel();*/ /* %% */

View File

@ -240,8 +240,6 @@ static const char *const xbsd_fstypes[] = {
Also fixed unaligned accesses in alpha_bootblock_checksum()
*/
static int possibly_osf_label;
#define FREEBSD_PARTITION 0xa5
#define NETBSD_PARTITION 0xa9
@ -876,10 +874,10 @@ xbsd_initlabel(struct partition *p)
d->d_flags = 0;
#endif
d->d_secsize = SECTOR_SIZE; /* bytes/sector */
d->d_nsectors = sectors; /* sectors/track */
d->d_ntracks = heads; /* tracks/cylinder (heads) */
d->d_ncylinders = cylinders;
d->d_secpercyl = sectors * heads; /* sectors/cylinder */
d->d_nsectors = g_sectors; /* sectors/track */
d->d_ntracks = g_heads; /* tracks/cylinder (heads) */
d->d_ncylinders = g_cylinders;
d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */
if (d->d_secpercyl == 0)
d->d_secpercyl = 1; /* avoid segfaults */
d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
@ -1027,7 +1025,7 @@ xbsd_link_part(void)
int k, i;
struct partition *p;
k = get_partition(1, partitions);
k = get_partition(1, g_partitions);
if (!xbsd_check_new_partition(&i))
return;

View File

@ -248,7 +248,7 @@ check_sgi_label(void)
}
update_units();
current_label_type = label_sgi;
partitions = 16;
g_partitions = 16;
sgi_volumes = 15;
return 1;
}
@ -295,7 +295,7 @@ sgi_list_table(int xtra)
"%d extra sects/cyl, interleave %d:1\n"
"%s\n"
"Units = %s of %d * 512 bytes\n\n",
disk_device, heads, sectors, cylinders,
disk_device, g_heads, g_sectors, g_cylinders,
SGI_SSWAP16(sgiparam.pcylcount),
SGI_SSWAP16(sgiparam.sparecyl),
SGI_SSWAP16(sgiparam.ilfact),
@ -305,7 +305,7 @@ sgi_list_table(int xtra)
printf("\nDisk %s (SGI 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 );
}
@ -317,7 +317,7 @@ sgi_list_table(int xtra)
printf("----- partitions -----\n"
"Pt# %*s Info Start End Sectors Id System\n",
w + 2, "Device");
for (i = 0; i < partitions; i++) {
for (i = 0; i < g_partitions; i++) {
if (sgi_get_num_sectors(i) || debug ) {
uint32_t start = sgi_get_start_sector(i);
uint32_t len = sgi_get_num_sectors(i);
@ -359,7 +359,7 @@ sgi_set_bootpartition(int i)
static unsigned int
sgi_get_lastblock(void)
{
return heads * sectors * cylinders;
return g_heads * g_sectors * g_cylinders;
}
static void
@ -660,7 +660,7 @@ sgi_set_entire(void)
{
int n;
for (n = 10; n < partitions; n++) {
for (n = 10; n < g_partitions; n++) {
if (!sgi_get_num_sectors(n) ) {
sgi_set_partition(n, 0, sgi_get_lastblock(), SGI_VOLUME);
break;
@ -673,7 +673,7 @@ sgi_set_volhdr(void)
{
int n;
for (n = 8; n < partitions; n++) {
for (n = 8; n < g_partitions; n++) {
if (!sgi_get_num_sectors(n)) {
/*
* 5 cylinders is an arbitrary value I like
@ -681,8 +681,8 @@ sgi_set_volhdr(void)
* (like sash, symmon, fx, ide) with ca. 3200
* sectors.
*/
if (heads * sectors * 5 < sgi_get_lastblock())
sgi_set_partition(n, 0, heads * sectors * 5, SGI_VOLHDR);
if (g_heads * g_sectors * 5 < sgi_get_lastblock())
sgi_set_partition(n, 0, g_heads * g_sectors * 5, SGI_VOLHDR);
break;
}
}
@ -783,18 +783,18 @@ create_sgilabel(void)
sgi_other_endian = (BYTE_ORDER == LITTLE_ENDIAN);
res = ioctl(fd, BLKGETSIZE, &longsectors);
if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
heads = geometry.heads;
sectors = geometry.sectors;
g_heads = geometry.heads;
g_sectors = geometry.sectors;
if (res == 0) {
/* the get device size ioctl was successful */
cylinders = longsectors / (heads * sectors);
cylinders /= sec_fac;
g_cylinders = longsectors / (g_heads * g_sectors);
g_cylinders /= sec_fac;
} else {
/* otherwise print error and use truncated version */
cylinders = geometry.cylinders;
g_cylinders = geometry.cylinders;
printf(
"Warning: BLKGETSIZE ioctl failed on %s. Using geometry cylinder value of %d.\n"
"This value may be truncated for devices > 33.8 GB.\n", disk_device, cylinders);
"This value may be truncated for devices > 33.8 GB.\n", disk_device, g_cylinders);
}
}
for (i = 0; i < 4; i++) {
@ -851,7 +851,7 @@ create_sgilabel(void)
//memset( &(sgilabel->directory), 0, sizeof(struct volume_directory)*15 );
//memset( &(sgilabel->partitions), 0, sizeof(struct sgi_partinfo)*16 );
current_label_type = label_sgi;
partitions = 16;
g_partitions = 16;
sgi_volumes = 15;
sgi_set_entire();
sgi_set_volhdr();

View File

@ -84,7 +84,7 @@ set_sun_partition(int i, uint start, uint stop, int sysid)
{
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 @@ check_sun_label(void)
"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 @@ create_sunlabel(void)
}
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 @@ create_sunlabel(void)
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 @@ create_sunlabel(void)
"%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 @@ fetch_sun(uint *starts, uint *lens, uint *start, uint *stop)
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 @@ verify_sun(void)
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 @@ verify_sun(void)
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 @@ add_sun_partition(int n, int sys)
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 @@ and is of type 'Whole disk'\n");
/* 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 @@ and is of type 'Whole disk'\n");
} 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 @@ sun_delete_partition(int i)
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 @@ sun_list_table(int xtra)
"%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 @@ sun_list_table(int xtra)
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 @@ static void
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"));
}