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/usr/src/linux-headers-5.15.0-181/arch/nds32/include/asm/

/usr/src/linux-headers-5.15.0-181/arch/nds32/include/asm

Name	Size	Mode	Actions
assembler.h	598	0644	edit dl rm
barrier.h	431	0644	edit dl rm
bitfield.h	47127	0644	edit dl rm
cache.h	276	0644	edit dl rm
cacheflush.h	1986	0644	edit dl rm
cache_info.h	315	0644	edit dl rm
current.h	304	0644	edit dl rm
delay.h	938	0644	edit dl rm
elf.h	6021	0644	edit dl rm
fixmap.h	831	0644	edit dl rm
fpu.h	3195	0644	edit dl rm
fpuemu.h	1272	0644	edit dl rm
ftrace.h	1161	0644	edit dl rm
futex.h	2483	0644	edit dl rm
highmem.h	1624	0644	edit dl rm
io.h	2474	0644	edit dl rm
irqflags.h	848	0644	edit dl rm
Kbuild	194	0644	edit dl rm
l2_cache.h	4791	0644	edit dl rm
linkage.h	264	0644	edit dl rm
memory.h	2713	0644	edit dl rm
mmu.h	213	0644	edit dl rm
mmu_context.h	1409	0644	edit dl rm
nds32.h	2018	0644	edit dl rm
nds32_fpu_inst.h	2510	0644	edit dl rm
page.h	1591	0644	edit dl rm
perf_event.h	445	0644	edit dl rm
pgalloc.h	1419	0644	edit dl rm
pgtable.h	11676	0644	edit dl rm
pmu.h	13350	0644	edit dl rm
proc-fns.h	1668	0644	edit dl rm
processor.h	2405	0644	edit dl rm
ptrace.h	1686	0644	edit dl rm
sfp-machine.h	4463	0644	edit dl rm
shmparam.h	462	0644	edit dl rm
stacktrace.h	884	0644	edit dl rm
string.h	471	0644	edit dl rm
suspend.h	258	0644	edit dl rm
swab.h	810	0644	edit dl rm
syscall.h	5496	0644	edit dl rm
syscalls.h	510	0644	edit dl rm
thread_info.h	2390	0644	edit dl rm
tlb.h	249	0644	edit dl rm
tlbflush.h	1144	0644	edit dl rm
uaccess.h	8272	0644	edit dl rm
unistd.h	156	0644	edit dl rm
vdso.h	429	0644	edit dl rm
vdso_datapage.h	1104	0644	edit dl rm
vdso_timer_info.h	357	0644	edit dl rm
vermagic.h	214	0644	edit dl rm
vmalloc.h	93	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/arch/nds32/include/asm/syscall.h (5496B)

/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2008-2009 Red Hat, Inc.  All rights reserved.
// Copyright (C) 2005-2017 Andes Technology Corporation

#ifndef _ASM_NDS32_SYSCALL_H
#define _ASM_NDS32_SYSCALL_H	1

#include <uapi/linux/audit.h>
#include <linux/err.h>
struct task_struct;
struct pt_regs;

/**
 * syscall_get_nr - find what system call a task is executing
 * @task:	task of interest, must be blocked
 * @regs:	task_pt_regs() of @task
 *
 * If @task is executing a system call or is at system call
 * tracing about to attempt one, returns the system call number.
 * If @task is not executing a system call, i.e. it's blocked
 * inside the kernel for a fault or signal, returns -1.
 *
 * Note this returns int even on 64-bit machines.  Only 32 bits of
 * system call number can be meaningful.  If the actual arch value
 * is 64 bits, this truncates to 32 bits so 0xffffffff means -1.
 *
 * It's only valid to call this when @task is known to be blocked.
 */
static inline int
syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
{
	return regs->syscallno;
}

/**
 * syscall_rollback - roll back registers after an aborted system call
 * @task:	task of interest, must be in system call exit tracing
 * @regs:	task_pt_regs() of @task
 *
 * It's only valid to call this when @task is stopped for system
 * call exit tracing (due to TIF_SYSCALL_TRACE or TIF_SYSCALL_AUDIT),
 * after tracehook_report_syscall_entry() returned nonzero to prevent
 * the system call from taking place.
 *
 * This rolls back the register state in @regs so it's as if the
 * system call instruction was a no-op.  The registers containing
 * the system call number and arguments are as they were before the
 * system call instruction.  This may not be the same as what the
 * register state looked like at system call entry tracing.
 */
static inline void
syscall_rollback(struct task_struct *task, struct pt_regs *regs)
{
	regs->uregs[0] = regs->orig_r0;
}

/**
 * syscall_get_error - check result of traced system call
 * @task:	task of interest, must be blocked
 * @regs:	task_pt_regs() of @task
 *
 * Returns 0 if the system call succeeded, or -ERRORCODE if it failed.
 *
 * It's only valid to call this when @task is stopped for tracing on exit
 * from a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
 */
static inline long
syscall_get_error(struct task_struct *task, struct pt_regs *regs)
{
	unsigned long error = regs->uregs[0];
	return IS_ERR_VALUE(error) ? error : 0;
}

/**
 * syscall_get_return_value - get the return value of a traced system call
 * @task:	task of interest, must be blocked
 * @regs:	task_pt_regs() of @task
 *
 * Returns the return value of the successful system call.
 * This value is meaningless if syscall_get_error() returned nonzero.
 *
 * It's only valid to call this when @task is stopped for tracing on exit
 * from a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
 */
static inline long
syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
{
	return regs->uregs[0];
}

/**
 * syscall_set_return_value - change the return value of a traced system call
 * @task:	task of interest, must be blocked
 * @regs:	task_pt_regs() of @task
 * @error:	negative error code, or zero to indicate success
 * @val:	user return value if @error is zero
 *
 * This changes the results of the system call that user mode will see.
 * If @error is zero, the user sees a successful system call with a
 * return value of @val.  If @error is nonzero, it's a negated errno
 * code; the user sees a failed system call with this errno code.
 *
 * It's only valid to call this when @task is stopped for tracing on exit
 * from a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
 */
static inline void
syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
			 int error, long val)
{
	regs->uregs[0] = (long)error ? error : val;
}

/**
 * syscall_get_arguments - extract system call parameter values
 * @task:	task of interest, must be blocked
 * @regs:	task_pt_regs() of @task
 * @args:	array filled with argument values
 *
 * Fetches 6 arguments to the system call (from 0 through 5). The first
 * argument is stored in @args[0], and so on.
 *
 * It's only valid to call this when @task is stopped for tracing on
 * entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
 */
#define SYSCALL_MAX_ARGS 6
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
		      unsigned long *args)
{
	args[0] = regs->orig_r0;
	args++;
	memcpy(args, &regs->uregs[0] + 1, 5 * sizeof(args[0]));
}

/**
 * syscall_set_arguments - change system call parameter value
 * @task:	task of interest, must be in system call entry tracing
 * @regs:	task_pt_regs() of @task
 * @args:	array of argument values to store
 *
 * Changes 6 arguments to the system call. The first argument gets value
 * @args[0], and so on.
 *
 * It's only valid to call this when @task is stopped for tracing on
 * entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
 */
static inline void
syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
		      const unsigned long *args)
{
	regs->orig_r0 = args[0];
	args++;

memcpy(&regs->uregs[0] + 1, args, 5 * sizeof(args[0]));
}

static inline int
syscall_get_arch(struct task_struct *task)
{
	return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
		? AUDIT_ARCH_NDS32BE : AUDIT_ARCH_NDS32;
}

#endif /* _ASM_NDS32_SYSCALL_H */

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