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2f7932b011
Previous syscall_trace implementation couldn't support AUDITSYSCALL and SYSCALL_TRACEPOINTS. Now we redesign it to support audit_syscall and syscall_tracepoints just like other archs'. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Dmitry V. Levin <ldv@altlinux.org> Cc: Arnd Bergmann <arnd@arndb.de>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
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#ifndef _ASM_CSKY_THREAD_INFO_H
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#define _ASM_CSKY_THREAD_INFO_H
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#ifndef __ASSEMBLY__
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#include <linux/version.h>
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#include <asm/types.h>
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#include <asm/page.h>
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#include <asm/processor.h>
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#include <abi/switch_context.h>
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struct thread_info {
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struct task_struct *task;
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void *dump_exec_domain;
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unsigned long flags;
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int preempt_count;
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unsigned long tp_value;
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mm_segment_t addr_limit;
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struct restart_block restart_block;
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struct pt_regs *regs;
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unsigned int cpu;
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};
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#define INIT_THREAD_INFO(tsk) \
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{ \
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.task = &tsk, \
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.preempt_count = INIT_PREEMPT_COUNT, \
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.addr_limit = KERNEL_DS, \
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.cpu = 0, \
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.restart_block = { \
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.fn = do_no_restart_syscall, \
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}, \
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}
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#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
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#define thread_saved_fp(tsk) \
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((unsigned long)(((struct switch_stack *)(tsk->thread.ksp))->r8))
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static inline struct thread_info *current_thread_info(void)
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{
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unsigned long sp;
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asm volatile("mov %0, sp\n":"=r"(sp));
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return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
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}
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#endif /* !__ASSEMBLY__ */
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#define TIF_SIGPENDING 0 /* signal pending */
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#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
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#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
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#define TIF_SYSCALL_TRACE 3 /* syscall trace active */
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#define TIF_SYSCALL_TRACEPOINT 4 /* syscall tracepoint instrumentation */
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#define TIF_SYSCALL_AUDIT 5 /* syscall auditing */
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#define TIF_POLLING_NRFLAG 16 /* poll_idle() is TIF_NEED_RESCHED */
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#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
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#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
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#define TIF_SECCOMP 21 /* secure computing */
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#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
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#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
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#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
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#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
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#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
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#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
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#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
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#define _TIF_MEMDIE (1 << TIF_MEMDIE)
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#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
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#define _TIF_SECCOMP (1 << TIF_SECCOMP)
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#endif /* _ASM_CSKY_THREAD_INFO_H */
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