* sys32_ioctl -> compat_ioctl -- sparc64
@ 2003-03-03 23:25 Pavel Machek
2003-03-04 11:09 ` David S. Miller
0 siblings, 1 reply; 2+ messages in thread
From: Pavel Machek @ 2003-03-03 23:25 UTC (permalink / raw)
To: torvalds, kernel list, davem
Hi!
This is sparc64-specific part. It removes hack where pointers to
functions were stored in 32bits, making ioctl table bigger, but I
guess that should not be a big problem (and can be fixed later).
Pavel
--- clean/arch/sparc64/kernel/ioctl32.c 2003-03-03 23:33:48.000000000 +0100
+++ linux/arch/sparc64/kernel/ioctl32.c 2003-02-28 15:33:49.000000000 +0100
@@ -11,6 +11,7 @@
#include <linux/config.h>
#include <linux/types.h>
#include <linux/compat.h>
+#include <linux/ioctl32.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/smp.h>
@@ -678,7 +679,7 @@
return (void *) (usp - len);
}
-static int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
+int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
struct ifreq *u_ifreq64;
struct ifreq32 *u_ifreq32 = (struct ifreq32 *) arg;
@@ -4274,16 +4275,14 @@
#define BNEPGETCONNLIST _IOR('B', 210, int)
#define BNEPGETCONNINFO _IOR('B', 211, int)
-struct ioctl_trans {
- unsigned int cmd;
- unsigned int handler;
- unsigned int next;
-};
+typedef int (* ioctl32_handler_t)(unsigned int, unsigned int, unsigned long, struct file *);
-#define COMPATIBLE_IOCTL(cmd) asm volatile(".word %0, sys_ioctl, 0" : : "i" (cmd));
-#define HANDLE_IOCTL(cmd,handler) asm volatile(".word %0, %1, 0" : : "i" (cmd), "i" (handler));
-#define IOCTL_TABLE_START void ioctl32_foo(void) { asm volatile(".data\nioctl_translations:");
-#define IOCTL_TABLE_END asm volatile("\nioctl_translations_end:\n\t.previous"); }
+#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl)
+#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl32_handler_t)(handler), NULL },
+#define IOCTL_TABLE_START \
+ struct ioctl_trans ioctl_start[] = {
+#define IOCTL_TABLE_END \
+ }; struct ioctl_trans ioctl_end[0];
IOCTL_TABLE_START
/* List here exlicitly which ioctl's are known to have
@@ -5218,134 +5217,3 @@
HANDLE_IOCTL(BLKBSZSET_32, do_blkbszset)
HANDLE_IOCTL(BLKGETSIZE64_32, do_blkgetsize64)
IOCTL_TABLE_END
-
-unsigned int ioctl32_hash_table[1024];
-
-static inline unsigned long ioctl32_hash(unsigned long cmd)
-{
- return ((cmd >> 6) ^ (cmd >> 4) ^ cmd) & 0x3ff;
-}
-
-static void ioctl32_insert_translation(struct ioctl_trans *trans)
-{
- unsigned long hash;
- struct ioctl_trans *t;
-
- hash = ioctl32_hash (trans->cmd);
- if (!ioctl32_hash_table[hash])
- ioctl32_hash_table[hash] = (u32)(long)trans;
- else {
- t = (struct ioctl_trans *)(long)ioctl32_hash_table[hash];
- while (t->next)
- t = (struct ioctl_trans *)(long)t->next;
- trans->next = 0;
- t->next = (u32)(long)trans;
- }
-}
-
-static int __init init_sys32_ioctl(void)
-{
- int i;
- extern struct ioctl_trans ioctl_translations[], ioctl_translations_end[];
-
- for (i = 0; &ioctl_translations[i] < &ioctl_translations_end[0]; i++)
- ioctl32_insert_translation(&ioctl_translations[i]);
- return 0;
-}
-
-__initcall(init_sys32_ioctl);
-
-static struct ioctl_trans *additional_ioctls;
-
-/* Always call these with kernel lock held! */
-
-int register_ioctl32_conversion(unsigned int cmd, int (*handler)(unsigned int, unsigned int, unsigned long, struct file *))
-{
- int i;
- if (!additional_ioctls) {
- additional_ioctls = vmalloc(PAGE_SIZE);
- if (!additional_ioctls)
- return -ENOMEM;
- memset(additional_ioctls, 0, PAGE_SIZE);
- }
- for (i = 0; i < PAGE_SIZE/sizeof(struct ioctl_trans); i++)
- if (!additional_ioctls[i].cmd)
- break;
- if (i == PAGE_SIZE/sizeof(struct ioctl_trans))
- return -ENOMEM;
- additional_ioctls[i].cmd = cmd;
- if (!handler)
- additional_ioctls[i].handler = (u32)(long)sys_ioctl;
- else
- additional_ioctls[i].handler = (u32)(long)handler;
- ioctl32_insert_translation(&additional_ioctls[i]);
- return 0;
-}
-
-int unregister_ioctl32_conversion(unsigned int cmd)
-{
- unsigned long hash = ioctl32_hash(cmd);
- struct ioctl_trans *t, *t1;
-
- t = (struct ioctl_trans *)(long)ioctl32_hash_table[hash];
- if (!t) return -EINVAL;
- if (t->cmd == cmd && t >= additional_ioctls &&
- (unsigned long)t < ((unsigned long)additional_ioctls) + PAGE_SIZE) {
- ioctl32_hash_table[hash] = t->next;
- t->cmd = 0;
- t->next = 0;
- return 0;
- } else while (t->next) {
- t1 = (struct ioctl_trans *)(long)t->next;
- if (t1->cmd == cmd && t1 >= additional_ioctls &&
- (unsigned long)t1 < ((unsigned long)additional_ioctls) + PAGE_SIZE) {
- t->next = t1->next;
- t1->cmd = 0;
- t1->next = 0;
- return 0;
- }
- t = t1;
- }
- return -EINVAL;
-}
-
-asmlinkage int sys32_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
- struct file * filp;
- int error = -EBADF;
- int (*handler)(unsigned int, unsigned int, unsigned long, struct file * filp);
- struct ioctl_trans *t;
-
- filp = fget(fd);
- if(!filp)
- goto out2;
-
- if (!filp->f_op || !filp->f_op->ioctl) {
- error = sys_ioctl (fd, cmd, arg);
- goto out;
- }
-
- t = (struct ioctl_trans *)(long)ioctl32_hash_table [ioctl32_hash (cmd)];
-
- while (t && t->cmd != cmd)
- t = (struct ioctl_trans *)(long)t->next;
- if (t) {
- handler = (void *)(long)t->handler;
- error = handler(fd, cmd, arg, filp);
- } else if (cmd >= SIOCDEVPRIVATE &&
- cmd <= (SIOCDEVPRIVATE + 15)) {
- error = siocdevprivate_ioctl(fd, cmd, arg);
- } else {
- static int count;
- if (++count <= 20)
- printk("sys32_ioctl(%s:%d): Unknown cmd fd(%d) "
- "cmd(%08x) arg(%08x)\n",
- current->comm, current->pid,
- (int)fd, (unsigned int)cmd, (unsigned int)arg);
- error = -EINVAL;
- }
-out:
- fput(filp);
-out2:
- return error;
-}
--- clean/arch/sparc64/kernel/sparc64_ksyms.c 2003-03-03 23:33:49.000000000 +0100
+++ linux/arch/sparc64/kernel/sparc64_ksyms.c 2003-02-24 22:36:20.000000000 +0100
@@ -89,7 +89,7 @@
extern int svr4_getcontext(svr4_ucontext_t *uc, struct pt_regs *regs);
extern int svr4_setcontext(svr4_ucontext_t *uc, struct pt_regs *regs);
extern int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
-extern int sys32_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
+extern int compat_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *);
extern long sparc32_open(const char * filename, int flags, int mode);
extern int register_ioctl32_conversion(unsigned int cmd, int (*handler)(unsigned int, unsigned int, unsigned long, struct file *));
@@ -316,7 +316,7 @@
EXPORT_SYMBOL(svr4_setcontext);
EXPORT_SYMBOL(prom_cpu_nodes);
EXPORT_SYMBOL(sys_ioctl);
-EXPORT_SYMBOL(sys32_ioctl);
+EXPORT_SYMBOL(compat_ioctl);
EXPORT_SYMBOL(sparc32_open);
#endif
--- clean/arch/sparc64/kernel/sunos_ioctl32.c 2003-03-03 23:33:49.000000000 +0100
+++ linux/arch/sparc64/kernel/sunos_ioctl32.c 2003-02-24 22:36:20.000000000 +0100
@@ -92,7 +92,7 @@
extern asmlinkage int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
-extern asmlinkage int sys32_ioctl(unsigned int, unsigned int, u32);
+extern asmlinkage int compat_ioctl(unsigned int, unsigned int, u32);
extern asmlinkage int sys_setsid(void);
asmlinkage int sunos_ioctl (int fd, u32 cmd, u32 arg)
@@ -127,39 +127,39 @@
}
switch(cmd) {
case _IOW('r', 10, struct rtentry32):
- ret = sys32_ioctl(fd, SIOCADDRT, arg);
+ ret = compat_ioctl(fd, SIOCADDRT, arg);
goto out;
case _IOW('r', 11, struct rtentry32):
- ret = sys32_ioctl(fd, SIOCDELRT, arg);
+ ret = compat_ioctl(fd, SIOCDELRT, arg);
goto out;
case _IOW('i', 12, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFADDR, arg);
+ ret = compat_ioctl(fd, SIOCSIFADDR, arg);
goto out;
case _IOWR('i', 13, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFADDR, arg);
+ ret = compat_ioctl(fd, SIOCGIFADDR, arg);
goto out;
case _IOW('i', 14, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFDSTADDR, arg);
+ ret = compat_ioctl(fd, SIOCSIFDSTADDR, arg);
goto out;
case _IOWR('i', 15, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFDSTADDR, arg);
+ ret = compat_ioctl(fd, SIOCGIFDSTADDR, arg);
goto out;
case _IOW('i', 16, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFFLAGS, arg);
+ ret = compat_ioctl(fd, SIOCSIFFLAGS, arg);
goto out;
case _IOWR('i', 17, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFFLAGS, arg);
+ ret = compat_ioctl(fd, SIOCGIFFLAGS, arg);
goto out;
case _IOW('i', 18, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFMEM, arg);
+ ret = compat_ioctl(fd, SIOCSIFMEM, arg);
goto out;
case _IOWR('i', 19, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFMEM, arg);
+ ret = compat_ioctl(fd, SIOCGIFMEM, arg);
goto out;
case _IOWR('i', 20, struct ifconf32):
- ret = sys32_ioctl(fd, SIOCGIFCONF, arg);
+ ret = compat_ioctl(fd, SIOCGIFCONF, arg);
goto out;
case _IOW('i', 21, struct ifreq): /* SIOCSIFMTU */
@@ -170,32 +170,32 @@
goto out;
case _IOWR('i', 23, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFBRDADDR, arg);
+ ret = compat_ioctl(fd, SIOCGIFBRDADDR, arg);
goto out;
case _IOW('i', 24, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFBRDADDR, arg);
+ ret = compat_ioctl(fd, SIOCSIFBRDADDR, arg);
goto out;
case _IOWR('i', 25, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFNETMASK, arg);
+ ret = compat_ioctl(fd, SIOCGIFNETMASK, arg);
goto out;
case _IOW('i', 26, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFNETMASK, arg);
+ ret = compat_ioctl(fd, SIOCSIFNETMASK, arg);
goto out;
case _IOWR('i', 27, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCGIFMETRIC, arg);
+ ret = compat_ioctl(fd, SIOCGIFMETRIC, arg);
goto out;
case _IOW('i', 28, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCSIFMETRIC, arg);
+ ret = compat_ioctl(fd, SIOCSIFMETRIC, arg);
goto out;
case _IOW('i', 30, struct arpreq):
- ret = sys32_ioctl(fd, SIOCSARP, arg);
+ ret = compat_ioctl(fd, SIOCSARP, arg);
goto out;
case _IOWR('i', 31, struct arpreq):
- ret = sys32_ioctl(fd, SIOCGARP, arg);
+ ret = compat_ioctl(fd, SIOCGARP, arg);
goto out;
case _IOW('i', 32, struct arpreq):
- ret = sys32_ioctl(fd, SIOCDARP, arg);
+ ret = compat_ioctl(fd, SIOCDARP, arg);
goto out;
case _IOW('i', 40, struct ifreq32): /* SIOCUPPER */
@@ -209,10 +209,10 @@
goto out;
case _IOW('i', 49, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCADDMULTI, arg);
+ ret = compat_ioctl(fd, SIOCADDMULTI, arg);
goto out;
case _IOW('i', 50, struct ifreq32):
- ret = sys32_ioctl(fd, SIOCDELMULTI, arg);
+ ret = compat_ioctl(fd, SIOCDELMULTI, arg);
goto out;
/* FDDI interface ioctls, unsupported. */
@@ -246,7 +246,7 @@
ret = -EFAULT;
if(get_user(oldval, ptr))
goto out;
- ret = sys32_ioctl(fd, cmd, arg);
+ ret = compat_ioctl(fd, cmd, arg);
__get_user(newval, ptr);
if(newval == -1) {
__put_user(oldval, ptr);
@@ -265,7 +265,7 @@
ret = -EFAULT;
if(get_user(oldval, ptr))
goto out;
- ret = sys32_ioctl(fd, cmd, arg);
+ ret = compat_ioctl(fd, cmd, arg);
__get_user(newval, ptr);
if(newval == -1) {
__put_user(oldval, ptr);
@@ -277,7 +277,7 @@
}
};
- ret = sys32_ioctl(fd, cmd, arg);
+ ret = compat_ioctl(fd, cmd, arg);
/* so stupid... */
ret = (ret == -EINVAL ? -EOPNOTSUPP : ret);
out:
--- clean/arch/sparc64/kernel/systbls.S 2003-03-03 23:33:49.000000000 +0100
+++ linux/arch/sparc64/kernel/systbls.S 2003-02-24 22:36:21.000000000 +0100
@@ -29,7 +29,7 @@
.word sys_chown, sys_sync, sys_kill, compat_sys_newstat, sys32_sendfile
/*40*/ .word compat_sys_newlstat, sys_dup, sys_pipe, compat_sys_times, sys_getuid
.word sys_umount, sys32_setgid16, sys32_getgid16, sys_signal, sys32_geteuid16
-/*50*/ .word sys32_getegid16, sys_acct, sys_nis_syscall, sys_getgid, sys32_ioctl
+/*50*/ .word sys32_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_ioctl
.word sys_reboot, sys32_mmap2, sys_symlink, sys_readlink, sys32_execve
/*60*/ .word sys_umask, sys_chroot, compat_sys_newfstat, sys_fstat64, sys_getpagesize
.word sys_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid
--- clean/arch/sparc64/solaris/ioctl.c 2003-03-03 23:33:51.000000000 +0100
+++ linux/arch/sparc64/solaris/ioctl.c 2003-02-26 22:44:36.000000000 +0100
@@ -23,6 +23,7 @@
#include <linux/netdevice.h>
#include <linux/mtio.h>
#include <linux/time.h>
+#include <linux/compat.h>
#include <net/sock.h>
@@ -35,7 +36,7 @@
extern asmlinkage int sys_ioctl(unsigned int fd, unsigned int cmd,
unsigned long arg);
-extern asmlinkage int sys32_ioctl(unsigned int fd, unsigned int cmd,
+extern asmlinkage int compat_ioctl(unsigned int fd, unsigned int cmd,
u32 arg);
asmlinkage int solaris_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
@@ -597,9 +598,9 @@
{
switch (cmd & 0xff) {
case 10: /* SIOCADDRT */
- return sys32_ioctl(fd, SIOCADDRT, arg);
+ return compat_ioctl(fd, SIOCADDRT, arg);
case 11: /* SIOCDELRT */
- return sys32_ioctl(fd, SIOCDELRT, arg);
+ return compat_ioctl(fd, SIOCDELRT, arg);
}
return -ENOSYS;
}
@@ -608,45 +609,45 @@
{
switch (cmd & 0xff) {
case 12: /* SIOCSIFADDR */
- return sys32_ioctl(fd, SIOCSIFADDR, arg);
+ return compat_ioctl(fd, SIOCSIFADDR, arg);
case 13: /* SIOCGIFADDR */
- return sys32_ioctl(fd, SIOCGIFADDR, arg);
+ return compat_ioctl(fd, SIOCGIFADDR, arg);
case 14: /* SIOCSIFDSTADDR */
- return sys32_ioctl(fd, SIOCSIFDSTADDR, arg);
+ return compat_ioctl(fd, SIOCSIFDSTADDR, arg);
case 15: /* SIOCGIFDSTADDR */
- return sys32_ioctl(fd, SIOCGIFDSTADDR, arg);
+ return compat_ioctl(fd, SIOCGIFDSTADDR, arg);
case 16: /* SIOCSIFFLAGS */
- return sys32_ioctl(fd, SIOCSIFFLAGS, arg);
+ return compat_ioctl(fd, SIOCSIFFLAGS, arg);
case 17: /* SIOCGIFFLAGS */
- return sys32_ioctl(fd, SIOCGIFFLAGS, arg);
+ return compat_ioctl(fd, SIOCGIFFLAGS, arg);
case 18: /* SIOCSIFMEM */
- return sys32_ioctl(fd, SIOCSIFMEM, arg);
+ return compat_ioctl(fd, SIOCSIFMEM, arg);
case 19: /* SIOCGIFMEM */
- return sys32_ioctl(fd, SIOCGIFMEM, arg);
+ return compat_ioctl(fd, SIOCGIFMEM, arg);
case 20: /* SIOCGIFCONF */
- return sys32_ioctl(fd, SIOCGIFCONF, arg);
+ return compat_ioctl(fd, SIOCGIFCONF, arg);
case 21: /* SIOCSIFMTU */
- return sys32_ioctl(fd, SIOCSIFMTU, arg);
+ return compat_ioctl(fd, SIOCSIFMTU, arg);
case 22: /* SIOCGIFMTU */
- return sys32_ioctl(fd, SIOCGIFMTU, arg);
+ return compat_ioctl(fd, SIOCGIFMTU, arg);
case 23: /* SIOCGIFBRDADDR */
- return sys32_ioctl(fd, SIOCGIFBRDADDR, arg);
+ return compat_ioctl(fd, SIOCGIFBRDADDR, arg);
case 24: /* SIOCSIFBRDADDR */
- return sys32_ioctl(fd, SIOCSIFBRDADDR, arg);
+ return compat_ioctl(fd, SIOCSIFBRDADDR, arg);
case 25: /* SIOCGIFNETMASK */
- return sys32_ioctl(fd, SIOCGIFNETMASK, arg);
+ return compat_ioctl(fd, SIOCGIFNETMASK, arg);
case 26: /* SIOCSIFNETMASK */
- return sys32_ioctl(fd, SIOCSIFNETMASK, arg);
+ return compat_ioctl(fd, SIOCSIFNETMASK, arg);
case 27: /* SIOCGIFMETRIC */
- return sys32_ioctl(fd, SIOCGIFMETRIC, arg);
+ return compat_ioctl(fd, SIOCGIFMETRIC, arg);
case 28: /* SIOCSIFMETRIC */
- return sys32_ioctl(fd, SIOCSIFMETRIC, arg);
+ return compat_ioctl(fd, SIOCSIFMETRIC, arg);
case 30: /* SIOCSARP */
- return sys32_ioctl(fd, SIOCSARP, arg);
+ return compat_ioctl(fd, SIOCSARP, arg);
case 31: /* SIOCGARP */
- return sys32_ioctl(fd, SIOCGARP, arg);
+ return compat_ioctl(fd, SIOCGARP, arg);
case 32: /* SIOCDARP */
- return sys32_ioctl(fd, SIOCDARP, arg);
+ return compat_ioctl(fd, SIOCDARP, arg);
case 52: /* SIOCGETNAME */
case 53: /* SIOCGETPEER */
{
--- clean/arch/sparc64/solaris/timod.c 2003-03-03 23:33:51.000000000 +0100
+++ linux/arch/sparc64/solaris/timod.c 2003-02-26 22:45:01.000000000 +0100
@@ -29,8 +29,6 @@
extern asmlinkage int sys_ioctl(unsigned int fd, unsigned int cmd,
unsigned long arg);
-extern asmlinkage int sys32_ioctl(unsigned int fd, unsigned int cmd,
- u32 arg);
asmlinkage int solaris_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
static spinlock_t timod_pagelock = SPIN_LOCK_UNLOCKED;
--
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: sys32_ioctl -> compat_ioctl -- sparc64
2003-03-03 23:25 sys32_ioctl -> compat_ioctl -- sparc64 Pavel Machek
@ 2003-03-04 11:09 ` David S. Miller
0 siblings, 0 replies; 2+ messages in thread
From: David S. Miller @ 2003-03-04 11:09 UTC (permalink / raw)
To: pavel; +Cc: torvalds, linux-kernel
From: Pavel Machek <pavel@ucw.cz>
Date: Tue, 4 Mar 2003 00:25:13 +0100
This is sparc64-specific part. It removes hack where pointers to
functions were stored in 32bits, making ioctl table bigger, but I
guess that should not be a big problem (and can be fixed later).
This is OK temporarily, but should be fixed eventually.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2003-03-04 11:16 UTC | newest]
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2003-03-03 23:25 sys32_ioctl -> compat_ioctl -- sparc64 Pavel Machek
2003-03-04 11:09 ` David S. Miller
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