Imported most of dolphin/os

src/dolphin/os/__ppc_eabi_init.c

@@ -0,0 +1,76 @@
+#include <dolphin/PPCArch.h>
+#include <dolphin/__ppc_eabi_init.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void __OSPSInit();
+void __OSCacheInit();
+
+asm void __init_hardware(void)
+{
+    // clang-format off
+  nofralloc
+  mfmsr r0
+  ori r0, r0, 0x2000
+  mtmsr r0
+
+  mflr r31
+  bl __OSPSInit
+  bl __OSCacheInit
+  mtlr r31
+  blr
+    // clang-format on
+}
+
+asm void __flush_cache(register void *address, register unsigned int size)
+{
+    // clang-format off
+  nofralloc
+  lis r5,  ~0
+  ori r5, r5, ~14
+  and r5, r5, r3
+  subf r3, r5, r3
+  add r4, r4, r3
+
+loop:    
+  dcbst r0, r5
+  sync
+  icbi r0, r5
+  addic r5, r5, 8
+  subic. r4, r4, 8    
+  bge loop
+  isync
+  blr
+    // clang-format on
+}
+
+void __init_user()
+{
+    __init_cpp();
+}
+
+typedef void (*voidfunctionptr)(void); // pointer to function returning void
+__declspec(section ".init") extern voidfunctionptr _ctors[];
+__declspec(section ".init") extern voidfunctionptr _dtors[];
+
+void __init_cpp(void)
+{
+    voidfunctionptr *constructor;
+
+    /*
+     *	call static initializers
+     */
+    for (constructor = _ctors; *constructor; constructor++) {
+        (*constructor)();
+    }
+}
+
+void _ExitProcess(void)
+{
+    PPCHalt();
+}
+
+#ifdef __cplusplus
+}
+#endif