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/* Return -1 on error or 1 on success (never 0!). */
static int
get_syscall_args(struct tcb *tcp)
{
#if defined LINUX_MIPSN64
tcp->u_arg[0] = mips_REG_A0;
tcp->u_arg[1] = mips_REG_A1;
tcp->u_arg[2] = mips_REG_A2;
tcp->u_arg[3] = mips_REG_A3;
tcp->u_arg[4] = mips_REG_A4;
tcp->u_arg[5] = mips_REG_A5;
#elif defined LINUX_MIPSN32
tcp->u_arg[0] = tcp->ext_arg[0] = mips_REG_A0;
tcp->u_arg[1] = tcp->ext_arg[1] = mips_REG_A1;
tcp->u_arg[2] = tcp->ext_arg[2] = mips_REG_A2;
tcp->u_arg[3] = tcp->ext_arg[3] = mips_REG_A3;
tcp->u_arg[4] = tcp->ext_arg[4] = mips_REG_A4;
tcp->u_arg[5] = tcp->ext_arg[5] = mips_REG_A5;
#elif defined LINUX_MIPSO32
tcp->u_arg[0] = mips_REG_A0;
tcp->u_arg[1] = mips_REG_A1;
tcp->u_arg[2] = mips_REG_A2;
tcp->u_arg[3] = mips_REG_A3;
if (tcp->s_ent->nargs > 4) {
if (umoven(tcp, mips_REG_SP + 4 * 4,
(tcp->s_ent->nargs - 4) * sizeof(tcp->u_arg[0]),
&tcp->u_arg[4]) < 0)
return -1;
}
#else
# error unsupported mips abi
#endif
return 1;
}
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