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19 lines
512 B
19 lines
512 B
4 months ago
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#include "negated_errno.h"
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static void
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get_error(struct tcb *tcp, const bool check_errno)
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{
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/*
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* The standard tile calling convention returns the value
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* (or negative errno) in r0, and zero (or positive errno) in r1.
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* Until at least kernel 3.8, however, the r1 value is not
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* reflected in ptregs at this point, so we use r0 here.
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*/
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if (check_errno && is_negated_errno(tile_regs.regs[0])) {
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tcp->u_rval = -1;
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tcp->u_error = -tile_regs.regs[0];
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} else {
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tcp->u_rval = tile_regs.regs[0];
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}
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}
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