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/*
* this is the internal transfer function.
*
* HISTORY
* 20-Sep-14 Matt Madison <madison@bliss-m.org>
* Re-code the saving of the gp register for MIPS64.
* 05-Jan-08 Thiemo Seufer <ths@debian.org>
* Ported from ppc.
*/
#define STACK_REFPLUS 1
#ifdef SLP_EVAL
#define STACK_MAGIC 0
#define REGS_TO_SAVE "$16", "$17", "$18", "$19", "$20", "$21", "$22", \
"$23", "$30"
static int
slp_switch(void)
{
register int err;
register int *stackref, stsizediff;
#ifdef __mips64
uint64_t gpsave;
#endif
__asm__ __volatile__ ("" : : : REGS_TO_SAVE);
#ifdef __mips64
__asm__ __volatile__ ("sd $28,%0" : "=m" (gpsave) : : );
#endif
__asm__ ("move %0, $29" : "=r" (stackref) : );
{
SLP_SAVE_STATE(stackref, stsizediff);
__asm__ __volatile__ (
#ifdef __mips64
"daddu $29, %0\n"
#else
"addu $29, %0\n"
#endif
: /* no outputs */
: "r" (stsizediff)
);
SLP_RESTORE_STATE();
}
#ifdef __mips64
__asm__ __volatile__ ("ld $28,%0" : : "m" (gpsave) : );
#endif
__asm__ __volatile__ ("" : : : REGS_TO_SAVE);
__asm__ __volatile__ ("move %0, $0" : "=r" (err));
return err;
}
#endif
/*
* further self-processing support
*/
/*
* if you want to add self-inspection tools, place them
* here. See the x86_msvc for the necessary defines.
* These features are highly experimental und not
* essential yet.
*/
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