-/* $Id: sys_sparc.c,v 1.70 2001/04/14 01:12:02 davem Exp $
- * linux/arch/sparc/kernel/sys_sparc.c
+/* linux/arch/sparc/kernel/sys_sparc.c
*
* This file contains various random system calls that
* have a non-standard calling sequence on the Linux/sparc
#include <linux/utsname.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
+#include <linux/ipc.h>
#include <asm/uaccess.h>
-#include <asm/ipc.h>
+#include <asm/unistd.h>
/* #define DEBUG_UNIMP_SYSCALL */
if (count++ > 5)
return -ENOSYS;
printk ("%s[%d]: Unimplemented SPARC system call %d\n",
- current->comm, current->pid, (int)regs->u_regs[1]);
+ current->comm, task_pid_nr(current), (int)regs->u_regs[1]);
#ifdef DEBUG_UNIMP_SYSCALL
show_regs (regs);
#endif
struct k_sigaction new_ka, old_ka;
int ret;
- if (sig < 0) {
- current->thread.new_signal = 1;
- sig = -sig;
- }
+ WARN_ON_ONCE(sig >= 0);
+ sig = -sig;
if (act) {
unsigned long mask;
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
- /* All tasks which use RT signals (effectively) use
- * new style signals.
- */
- current->thread.new_signal = 1;
-
if (act) {
new_ka.ka_restorer = restorer;
if (copy_from_user(&new_ka.sa, act, sizeof(*act)))
down_read(&uts_sem);
- nlen = strlen(system_utsname.domainname) + 1;
+ nlen = strlen(utsname()->domainname) + 1;
err = -EINVAL;
if (nlen > len)
goto out;
err = -EFAULT;
- if (!copy_to_user(name, system_utsname.domainname, nlen))
+ if (!copy_to_user(name, utsname()->domainname, nlen))
err = 0;
out:
up_read(&uts_sem);
return err;
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ long __res;
+ register long __g1 __asm__ ("g1") = __NR_execve;
+ register long __o0 __asm__ ("o0") = (long)(filename);
+ register long __o1 __asm__ ("o1") = (long)(argv);
+ register long __o2 __asm__ ("o2") = (long)(envp);
+ asm volatile ("t 0x10\n\t"
+ "bcc 1f\n\t"
+ "mov %%o0, %0\n\t"
+ "sub %%g0, %%o0, %0\n\t"
+ "1:\n\t"
+ : "=r" (__res), "=&r" (__o0)
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1)
+ : "cc");
+ return __res;
+}