Rechercher une page de manuel
syscall_set_return_value
Langue: en
Version: May 2009 (fedora - 06/07/09)
Section: 9 (Appels noyau Linux)
Sommaire
NAME
syscall_set_return_value - change the return value of a traced system callSYNOPSIS
- void syscall_set_return_value(struct task_struct * task, struct pt_regs * regs, int error, long val);
ARGUMENTS
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
DESCRIPTION
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.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre