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/*
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
/* Return -1 on error or 1 on success (never 0!). */
static int
arch_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;
}
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