summaryrefslogtreecommitdiff
path: root/arch/frv/include/asm/syscall.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/frv/include/asm/syscall.h')
-rw-r--r--arch/frv/include/asm/syscall.h123
1 files changed, 0 insertions, 123 deletions
diff --git a/arch/frv/include/asm/syscall.h b/arch/frv/include/asm/syscall.h
deleted file mode 100644
index 70689eb29b98..000000000000
--- a/arch/frv/include/asm/syscall.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/* syscall parameter access functions
- *
- * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_SYSCALL_H
-#define _ASM_SYSCALL_H
-
-#include <linux/err.h>
-#include <asm/ptrace.h>
-
-/*
- * Get the system call number or -1
- */
-static inline long syscall_get_nr(struct task_struct *task,
- struct pt_regs *regs)
-{
- return regs->syscallno;
-}
-
-/*
- * Restore the clobbered GR8 register
- * (1st syscall arg was overwritten with syscall return or error)
- */
-static inline void syscall_rollback(struct task_struct *task,
- struct pt_regs *regs)
-{
- regs->gr8 = regs->orig_gr8;
-}
-
-/*
- * See if the syscall return value is an error, returning it if it is and 0 if
- * not
- */
-static inline long syscall_get_error(struct task_struct *task,
- struct pt_regs *regs)
-{
- return IS_ERR_VALUE(regs->gr8) ? regs->gr8 : 0;
-}
-
-/*
- * Get the syscall return value
- */
-static inline long syscall_get_return_value(struct task_struct *task,
- struct pt_regs *regs)
-{
- return regs->gr8;
-}
-
-/*
- * Set the syscall return value
- */
-static inline void syscall_set_return_value(struct task_struct *task,
- struct pt_regs *regs,
- int error, long val)
-{
- if (error)
- regs->gr8 = -error;
- else
- regs->gr8 = val;
-}
-
-/*
- * Retrieve the system call arguments
- */
-static inline void syscall_get_arguments(struct task_struct *task,
- struct pt_regs *regs,
- unsigned int i, unsigned int n,
- unsigned long *args)
-{
- /*
- * Do this simply for now. If we need to start supporting
- * fetching arguments from arbitrary indices, this will need some
- * extra logic. Presently there are no in-tree users that depend
- * on this behaviour.
- */
- BUG_ON(i);
-
- /* Argument pattern is: GR8, GR9, GR10, GR11, GR12, GR13 */
- switch (n) {
- case 6: args[5] = regs->gr13;
- case 5: args[4] = regs->gr12;
- case 4: args[3] = regs->gr11;
- case 3: args[2] = regs->gr10;
- case 2: args[1] = regs->gr9;
- case 1: args[0] = regs->gr8;
- break;
- default:
- BUG();
- }
-}
-
-/*
- * Alter the system call arguments
- */
-static inline void syscall_set_arguments(struct task_struct *task,
- struct pt_regs *regs,
- unsigned int i, unsigned int n,
- const unsigned long *args)
-{
- /* Same note as above applies */
- BUG_ON(i);
-
- switch (n) {
- case 6: regs->gr13 = args[5];
- case 5: regs->gr12 = args[4];
- case 4: regs->gr11 = args[3];
- case 3: regs->gr10 = args[2];
- case 2: regs->gr9 = args[1];
- case 1: regs->gr8 = args[0];
- break;
- default:
- BUG();
- }
-}
-
-#endif /* _ASM_SYSCALL_H */