2 * linux/arch/h8300/kernel/sys_h8300.c
4 * This file contains various random system calls that
5 * have a non-standard calling sequence on the H8/300
9 #include <linux/errno.h>
10 #include <linux/sched.h>
12 #include <linux/smp.h>
13 #include <linux/sem.h>
14 #include <linux/msg.h>
15 #include <linux/shm.h>
16 #include <linux/stat.h>
17 #include <linux/syscalls.h>
18 #include <linux/mman.h>
19 #include <linux/file.h>
21 #include <linux/ipc.h>
23 #include <asm/setup.h>
24 #include <asm/uaccess.h>
25 #include <asm/cachectl.h>
26 #include <asm/traps.h>
27 #include <asm/unistd.h>
29 /* sys_cacheflush -- no support. */
31 sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
36 asmlinkage int sys_getpagesize(void)
41 #if defined(CONFIG_SYSCALL_PRINT)
42 asmlinkage void syscall_print(void *dummy,...)
44 struct pt_regs *regs = (struct pt_regs *) ((unsigned char *)&dummy-4);
45 printk("call %06lx:%ld 1:%08lx,2:%08lx,3:%08lx,ret:%08lx\n",
46 ((regs->pc)&0xffffff)-2,regs->orig_er0,regs->er1,regs->er2,regs->er3,regs->er0);
51 * Do a system call from kernel instead of calling sys_execve so we
52 * end up with proper pt_regs.
54 int kernel_execve(const char *filename,
55 const char *const argv[],
56 const char *const envp[])
58 register long res __asm__("er0");
59 register const char *const *_c __asm__("er3") = envp;
60 register const char *const *_b __asm__("er2") = argv;
61 register const char * _a __asm__("er1") = filename;
62 __asm__ __volatile__ ("mov.l %1,er0\n\t"