hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
33 lines
896 B
C
33 lines
896 B
C
/* Return -1 on error or 1 on success (never 0!). */
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static int
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get_syscall_args(struct tcb *tcp)
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{
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#if defined LINUX_MIPSN64 || defined LINUX_MIPSN32
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tcp->u_arg[0] = mips_REG_A0;
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tcp->u_arg[1] = mips_REG_A1;
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tcp->u_arg[2] = mips_REG_A2;
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tcp->u_arg[3] = mips_REG_A3;
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tcp->u_arg[4] = mips_REG_A4;
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tcp->u_arg[5] = mips_REG_A5;
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#elif defined LINUX_MIPSO32
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tcp->u_arg[0] = mips_REG_A0;
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tcp->u_arg[1] = mips_REG_A1;
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tcp->u_arg[2] = mips_REG_A2;
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tcp->u_arg[3] = mips_REG_A3;
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if (tcp->s_ent->nargs > 4
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&& umoven(tcp, mips_REG_SP + 4 * sizeof(tcp->u_arg[0]),
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(tcp->s_ent->nargs - 4) * sizeof(tcp->u_arg[0]),
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&tcp->u_arg[4]) < 0) {
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/*
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* Let's proceed with the first 4 arguments
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* instead of reporting the failure.
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*/
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memset(&tcp->u_arg[4], 0,
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(tcp->s_ent->nargs - 4) * sizeof(tcp->u_arg[0]));
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}
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#else
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# error unsupported mips abi
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#endif
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return 1;
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}
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