parisc: add skeleton syscall.h

Needed for lib/syscall.c when HAVE_ARCH_TRACEHOOK.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 302f68d..aead40b 100644 (file)
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -59,8 +59,11 @@ void user_enable_block_step(struct task_struct *task);
 #define user_mode(regs)                        (((regs)->iaoq[0] & 3) ? 1 : 0)
 #define user_space(regs)               (((regs)->iasq[1] != 0) ? 1 : 0)
 #define instruction_pointer(regs)      ((regs)->iaoq[0] & ~3)
+#define user_stack_pointer(regs)       ((regs)->gr[30])
 unsigned long profile_pc(struct pt_regs *);
 extern void show_regs(struct pt_regs *);
-#endif
+
+
+#endif /* __KERNEL__ */
 
 #endif

diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
new file mode 100644 (file)
index 0000000..8bdfd2c
--- /dev/null
+++ b/arch/parisc/include/asm/syscall.h
@@ -0,0 +1,40 @@
+/* syscall.h */
+
+#ifndef _ASM_PARISC_SYSCALL_H_
+#define _ASM_PARISC_SYSCALL_H_
+
+#include <linux/err.h>
+#include <asm/ptrace.h>
+
+static inline long syscall_get_nr(struct task_struct *tsk,
+                                 struct pt_regs *regs)
+{
+       return regs->gr[20];
+}
+
+static inline void syscall_get_arguments(struct task_struct *tsk,
+                                        struct pt_regs *regs, unsigned int i,
+                                        unsigned int n, unsigned long *args)
+{
+       BUG_ON(i);
+
+       switch (n) {
+       case 6:
+               args[5] = regs->gr[21];
+       case 5:
+               args[4] = regs->gr[22];
+       case 4:
+               args[3] = regs->gr[23];
+       case 3:
+               args[2] = regs->gr[24];
+       case 2:
+               args[1] = regs->gr[25];
+       case 1:
+               args[0] = regs->gr[26];
+               break;
+       default:
+               BUG();
+       }
+}
+
+#endif /*_ASM_PARISC_SYSCALL_H_*/