first add files

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/greenlet/platform/switch_csky_gcc.h b/lib/greenlet/platform/switch_csky_gcc.h
new file mode 100644
index 0000000..7486b94
--- /dev/null
+++ b/lib/greenlet/platform/switch_csky_gcc.h
@@ -0,0 +1,48 @@
+#ifdef SLP_EVAL
+#define STACK_MAGIC 0
+#define REG_FP "r8"
+#ifdef __CSKYABIV2__
+#define REGS_TO_SAVE_GENERAL "r4", "r5", "r6", "r7", "r9", "r10", "r11", "r15",\
+                             "r16", "r17", "r18", "r19", "r20", "r21", "r22",\
+                             "r23", "r24", "r25"
+
+#if defined (__CSKY_HARD_FLOAT__) || (__CSKY_VDSP__)
+#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL, "vr8", "vr9", "vr10", "vr11", "vr12",\
+                                           "vr13", "vr14", "vr15"
+#else
+#define REGS_TO_SAVE REGS_TO_SAVE_GENERAL
+#endif
+#else
+#define REGS_TO_SAVE "r9", "r10", "r11", "r12", "r13", "r15"
+#endif
+
+
+static int
+#ifdef __GNUC__
+__attribute__((optimize("no-omit-frame-pointer")))
+#endif
+slp_switch(void)
+{
+        register int *stackref, stsizediff;
+        int result;
+
+        __asm__ volatile ("" : : : REGS_TO_SAVE);
+        __asm__ ("mov %0, sp" : "=r" (stackref));
+        {
+                SLP_SAVE_STATE(stackref, stsizediff);
+                __asm__ volatile (
+                    "addu sp,%0\n"
+                    "addu "REG_FP",%0\n"
+                    :
+                    : "r" (stsizediff)
+                    );
+		
+                SLP_RESTORE_STATE();
+        }
+        __asm__ volatile ("movi %0, 0" : "=r" (result));
+        __asm__ volatile ("" : : : REGS_TO_SAVE);
+
+        return result;
+}
+
+#endif