hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
18 lines
515 B
C
18 lines
515 B
C
static void
|
|
get_error(struct tcb *tcp, const bool check_errno)
|
|
{
|
|
/*
|
|
* The system call convention specifies that r2 contains the return
|
|
* value on success or a positive error number on failure. A flag
|
|
* indicating successful completion is written to r7; r7=0 indicates
|
|
* the system call success, r7=1 indicates an error. The positive
|
|
* errno value written in r2.
|
|
*/
|
|
if (nios2_regs.regs[7]) {
|
|
tcp->u_rval = -1;
|
|
tcp->u_error = nios2_regs.regs[2];
|
|
} else {
|
|
tcp->u_rval = nios2_regs.regs[2];
|
|
}
|
|
}
|