Thanks, applied.
On Sat, Feb 12, 2011 at 3:21 PM, Artyom Tarasenko atar4qemu@gmail.com wrote:
__switch_context_nosave shall not write to __context, only read it.
Signed-off-by: Artyom Tarasenko atar4qemu@gmail.com --- arch/sparc32/switch.S (revision 1024) +++ arch/sparc32/switch.S (working copy) @@ -79,11 +79,15 @@ set (PSR_PS | PSR_S | PSR_PIL | PSR_EF), %g2 wr %g2, 0x0, %psr #endif
- set __context, %g1
- /* Swap ctx pointer with %fp and jump*/
- ba __set_context
- swap [%g1], %fp
__switch_context_nosave:
- set __context, %g1
- /* Swap ctx pointer with %fp */
- swap [%g1], %fp
- set __context, %g1
- /* load %fp from ctx pointer */
- ld [%g1], %fp
+__set_context: /* Load all registers */ /* offset 0: %g0, no need to load */ ld [%fp + 4], %g1
Regards, Artyom Tarasenko
solaris/sparc under qemu blog: http://tyom.blogspot.com/