Dmitry V. Levin
19de67d239
* defs.h (widen_to_long): Remove. (truncate_klong_to_current_wordsize): New static inline function. * aio.c (SYS_FUNC(io_submit), SYS_FUNC(io_getevents): Use it instead of widen_to_long. * linux/sparc64/get_syscall_args.c (get_syscall_args): Update comment. * linux/x86_64/get_syscall_args.c (get_syscall_args): Likewise.
29 lines
1009 B
C
29 lines
1009 B
C
/* Return -1 on error or 1 on success (never 0!). */
|
|
static int
|
|
get_syscall_args(struct tcb *tcp)
|
|
{
|
|
if (tcp->currpers == 1) {
|
|
/*
|
|
* Zero-extend from 32 bits.
|
|
* Use truncate_klong_to_current_wordsize(tcp->u_arg[N])
|
|
* in syscall handlers
|
|
* if you need to use *sign-extended* parameter.
|
|
*/
|
|
tcp->u_arg[0] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 0];
|
|
tcp->u_arg[1] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 1];
|
|
tcp->u_arg[2] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 2];
|
|
tcp->u_arg[3] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 3];
|
|
tcp->u_arg[4] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 4];
|
|
tcp->u_arg[5] = (uint32_t) sparc_regs.u_regs[U_REG_O0 + 5];
|
|
} else {
|
|
tcp->u_arg[0] = sparc_regs.u_regs[U_REG_O0 + 0];
|
|
tcp->u_arg[1] = sparc_regs.u_regs[U_REG_O0 + 1];
|
|
tcp->u_arg[2] = sparc_regs.u_regs[U_REG_O0 + 2];
|
|
tcp->u_arg[3] = sparc_regs.u_regs[U_REG_O0 + 3];
|
|
tcp->u_arg[4] = sparc_regs.u_regs[U_REG_O0 + 4];
|
|
tcp->u_arg[5] = sparc_regs.u_regs[U_REG_O0 + 5];
|
|
}
|
|
|
|
return 1;
|
|
}
|