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Re-code the saving of the gp register for MIPS64 so it compiles #58

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merged 5 commits into from
Sep 20, 2014
Merged

Re-code the saving of the gp register for MIPS64 so it compiles #58

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b81b53d
Re-code the saving of the gp register for MIPS64 so it compiles under
Sep 18, 2014
10ff5cf
Use assembler directives to perform the gp register save/restore.
Sep 19, 2014
3055d8d
Simply remove the additional GP register saves for MIPS64, as
Sep 20, 2014
55e5a8f
Clean up stray extra include from prior versions.
Sep 20, 2014
4d8bc09
Add back in the explicit save/restore, in case there is a
Sep 20, 2014
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14 changes: 9 additions & 5 deletions platform/switch_mips_unix.h
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Original file line number Diff line number Diff line change
Expand Up @@ -12,18 +12,19 @@

#define STACK_MAGIC 0

#ifdef __mips64
#define REGS_TO_SAVE "$16", "$17", "$18", "$19", "$20", "$21", "$22", \
"$23", "$28", "$30"
#else
#define REGS_TO_SAVE "$16", "$17", "$18", "$19", "$20", "$21", "$22", \
"$23", "$30"
#endif
static int
slp_switch(void)
{
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);
Expand All @@ -38,6 +39,9 @@ slp_switch(void)
);
SLP_RESTORE_STATE();
}
#ifdef __mips64
__asm__ __volatile__ ("ld $28,%0" : : "m" (gpsave) : );
#endif
__asm__ __volatile__ ("" : : : REGS_TO_SAVE);
return 0;
}
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