SYSCALL_SET_ARGUMENT(9) Machine State SYSCALL_SET_ARGUMENT(9)
NAME
syscall_set_arguments - change system call parameter value
SYNOPSIS
void syscall_set_arguments(struct task_struct * task, struct pt_regs * regs, unsigned int i, unsigned int n, const unsigned long * args);
ARGUMENTS
task
task of interest, must be in system call entry tracing
regs
task_pt_regs of task
i
argument index [0,5]
n
number of arguments; n+i must be [1,6].
args
array of argument values to store
DESCRIPTION
Changes n arguments to the system call starting with the i'th argument. Argument i gets value args[0], and so on. An arch inline version is
probably optimal when i and n are constants.
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.
It's invalid to call this with i + n > 6; we only support system calls taking up to 6 arguments.
Kernel Hackers Manual 2.6. July 2010 SYSCALL_SET_ARGUMENT(9)
