Release 4.14 arch/s390/include/asm/syscall.h
/*
* Access to user system call parameters and results
*
* Copyright IBM Corp. 2008
* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
* as published by the Free Software Foundation.
*/
#ifndef _ASM_SYSCALL_H
#define _ASM_SYSCALL_H 1
#include <uapi/linux/audit.h>
#include <linux/sched.h>
#include <linux/err.h>
#include <asm/ptrace.h>
/*
* The syscall table always contains 32 bit pointers since we know that the
* address of the function to be called is (way) below 4GB. So the "int"
* type here is what we want [need] for both 32 bit and 64 bit systems.
*/
extern const unsigned int sys_call_table[];
extern const unsigned int sys_call_table_emu[];
static inline long syscall_get_nr(struct task_struct *task,
struct pt_regs *regs)
{
return test_pt_regs_flag(regs, PIF_SYSCALL) ?
(regs->int_code & 0xffff) : -1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 36 | 100.00% | 6 | 100.00% |
| Total | 36 | 100.00% | 6 | 100.00% |
static inline void syscall_rollback(struct task_struct *task,
struct pt_regs *regs)
{
regs->gprs[2] = regs->orig_gpr2;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 28 | 100.00% | 1 | 100.00% |
| Total | 28 | 100.00% | 1 | 100.00% |
static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)
{
return IS_ERR_VALUE(regs->gprs[2]) ? regs->gprs[2] : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 37 | 100.00% | 2 | 100.00% |
| Total | 37 | 100.00% | 2 | 100.00% |
static inline long syscall_get_return_value(struct task_struct *task,
struct pt_regs *regs)
{
return regs->gprs[2];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
static inline void syscall_set_return_value(struct task_struct *task,
struct pt_regs *regs,
int error, long val)
{
regs->gprs[2] = error ? error : val;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 36 | 100.00% | 1 | 100.00% |
| Total | 36 | 100.00% | 1 | 100.00% |
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
unsigned long mask = -1UL;
/*
* No arguments for this syscall, there's nothing to do.
*/
if (!n)
return;
BUG_ON(i + n > 6);
#ifdef CONFIG_COMPAT
if (test_tsk_thread_flag(task, TIF_31BIT))
mask = 0xffffffff;
#endif
while (n-- > 0)
if (i + n > 0)
args[n] = regs->gprs[2 + i + n] & mask;
if (i == 0)
args[0] = regs->orig_gpr2 & mask;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 114 | 94.21% | 2 | 66.67% |
| Jiri Olsa | 7 | 5.79% | 1 | 33.33% |
| Total | 121 | 100.00% | 3 | 100.00% |
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
BUG_ON(i + n > 6);
while (n-- > 0)
if (i + n > 0)
regs->gprs[2 + i + n] = args[n];
if (i == 0)
regs->orig_gpr2 = args[0];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 86 | 100.00% | 2 | 100.00% |
| Total | 86 | 100.00% | 2 | 100.00% |
static inline int syscall_get_arch(void)
{
#ifdef CONFIG_COMPAT
if (test_tsk_thread_flag(current, TIF_31BIT))
return AUDIT_ARCH_S390;
#endif
return AUDIT_ARCH_S390X;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Heiko Carstens | 27 | 93.10% | 1 | 50.00% |
| Eric Paris | 2 | 6.90% | 1 | 50.00% |
| Total | 29 | 100.00% | 2 | 100.00% |
#endif /* _ASM_SYSCALL_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 386 | 88.53% | 7 | 53.85% |
| Heiko Carstens | 32 | 7.34% | 2 | 15.38% |
| Mike Frysinger | 8 | 1.83% | 1 | 7.69% |
| Jiri Olsa | 7 | 1.61% | 1 | 7.69% |
| Eric Paris | 3 | 0.69% | 2 | 15.38% |
| Total | 436 | 100.00% | 13 | 100.00% |
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