libgloss: bfin: handle result2/errcode in sim syscalls
The sim passes back results via two values, and the error code via a 3rd. make sure libgloss extracts all three so that things like errno work as expected. This fixes many gdb tests which look for this sort of thing. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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@ -32,10 +32,15 @@ register char *stack_ptr asm ("SP");
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static inline int
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do_syscall (int reason, void *arg)
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{
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register int r asm ("P0") = reason;
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register void *a asm ("R0") = arg;
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register int result asm ("R0");
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asm volatile ("excpt 0;" : "=r" (result) : "a" (r), "r" (a) : "memory", "CC");
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int result, result2, errcode;
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asm volatile ("excpt 0;"
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: "=q0" (result),
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"=q1" (result2),
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"=q2" (errcode)
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: "qA" (reason),
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"q0" (arg)
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: "memory", "CC");
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errno = errcode;
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return result;
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}
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