On 13 Jul 2002, Ed Sweetman wrote:
> When compiling with the 2.5 ide subsystem i get undefined references to
> __udivdi3
>
> ld -m elf_i386 -T arch/i386/vmlinux.lds -e stext arch/i386/kernel/head.o arch/i386/kernel/init_task.o init/init.o --start-group arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o /usr/src/linux-2.5.25/arch/i386/lib/lib.a lib/lib.a /usr/src/linux-2.5.25/arch/i386/lib/lib.a drivers/built-in.o sound/sound.o arch/i386/pci/pci.o net/network.o --end-group -o vmlinux
> fs/fs.o: In function `proc_pid_stat':
> fs/fs.o(.text+0x1ff3f): undefined reference to `__udivdi3'
> fs/fs.o: In function `kstat_read_proc':
> fs/fs.o(.text+0x20fc8): undefined reference to `__udivdi3'
> fs/fs.o(.text+0x2105e): undefined reference to `__udivdi3'
>
The following patch fixes this. It was intended to go into -dj2, but
unfortunately got eaten by Daves harddisk (or something like that, don't
know exactly).
Tim
--- linux-2.5.25-dj2/kernel/timer.c Sat Jul 13 08:42:01 2002
+++ linux-2.5.25-dj2-jfix/kernel/timer.c Sat Jul 13 08:42:53 2002
@@ -24,8 +24,10 @@
#include <linux/interrupt.h>
#include <linux/tqueue.h>
#include <linux/kernel_stat.h>
+#include <linux/jiffies.h>
#include <asm/uaccess.h>
+#include <asm/div64.h>
struct kernel_stat kstat;
@@ -938,13 +940,16 @@
asmlinkage long sys_sysinfo(struct sysinfo *info)
{
struct sysinfo val;
+ u64 uptime;
unsigned long mem_total, sav_total;
unsigned int mem_unit, bitcount;
memset((char *)&val, 0, sizeof(struct sysinfo));
read_lock_irq(&xtime_lock);
- val.uptime = jiffies / HZ;
+ uptime = jiffies_64;
+ do_div(uptime, HZ);
+ val.uptime = (unsigned long) uptime;
val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
--- linux-2.5.25-dj2/fs/proc/array.c Sat Jul 13 08:41:59 2002
+++ linux-2.5.25-dj2-jfix/fs/proc/array.c Sat Jul 13 09:05:22 2002
@@ -346,7 +346,7 @@
ppid = task->pid ? task->real_parent->pid : 0;
read_unlock(&tasklist_lock);
res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
-%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %lu %lu %ld %lu %lu %lu %lu %lu \
+%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %llu %lu %ld %lu %lu %lu %lu %lu \
%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
task->pid,
task->comm,
@@ -369,7 +369,7 @@
nice,
0UL /* removed */,
jiffies_to_clock_t(task->it_real_value),
- jiffies_to_clock_t(task->start_time),
+ (unsigned long long) jiffies_64_to_clock_t(task->start_time),
vsize,
mm ? mm->rss : 0, /* you might want to shift this left 3 */
task->rlim[RLIMIT_RSS].rlim_cur,
--- linux-2.5.25-dj2/fs/proc/proc_misc.c Sat Jul 13 08:41:59 2002
+++ linux-2.5.25-dj2-jfix/fs/proc/proc_misc.c Sat Jul 13 09:10:16 2002
@@ -310,7 +310,9 @@
jiffies_to_clock_t(user),
jiffies_to_clock_t(nice),
jiffies_to_clock_t(system),
- jiffies_to_clock_t(jif * num_online_cpus() - (user + nice + system)));
+ (unsigned long long)
+ jiffies_64_to_clock_t(jif * num_online_cpus()
+ - user - nice - system));
for (i = 0 ; i < NR_CPUS; i++){
if (!cpu_online(i)) continue;
len += sprintf(page + len, "cpu%d %lu %lu %lu %llu\n",
@@ -318,9 +320,10 @@
jiffies_to_clock_t(kstat.per_cpu_user[i]),
jiffies_to_clock_t(kstat.per_cpu_nice[i]),
jiffies_to_clock_t(kstat.per_cpu_system[i]),
- jiffies_to_clock_t(jif - ( kstat.per_cpu_user[i] \
- + kstat.per_cpu_nice[i] \
- + kstat.per_cpu_system[i])));
+ (unsigned long long)
+ jiffies_64_to_clock_t(jif - kstat.per_cpu_user[i]
+ - kstat.per_cpu_nice[i]
+ - kstat.per_cpu_system[i]));
}
len += sprintf(page + len,
"page %u %u\n"
--- linux-2.5.25-dj2/include/linux/times.h Sat Jul 13 08:40:21 2002
+++ linux-2.5.25-dj2-jfix/include/linux/times.h Sat Jul 13 09:06:05 2002
@@ -2,7 +2,22 @@
#define _LINUX_TIMES_H
#ifdef __KERNEL__
+#include <asm/div64.h>
+#include <asm/types.h>
+
# define jiffies_to_clock_t(x) ((x) / (HZ / USER_HZ))
+
+/*
+ * returning a different type than the function name says is
+ * ugly as hell, and only intended to stay until I know what type
+ * should replace clock_t
+ */
+
+static inline u64 jiffies_64_to_clock_t(u64 x)
+{
+ do_div(x, HZ / USER_HZ);
+ return x;
+}
#endif
struct tms {
-
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This archive was generated by hypermail 2b29 : Mon Jul 15 2002 - 22:00:25 EST