20110225-1058

1 files changed, 33 insertions, 0 deletions

diff --git a/Linux/arm/include/emu.h b/Linux/arm/include/emu.h
new file mode 100644
index 00000000..da7b786f
--- /dev/null
+++ b/Linux/arm/include/emu.h
@@ -0,0 +1,33 @@
+/*
+ * system- and machine-specific declarations for emu:
+ * floating-point save and restore, signal handling primitive, and
+ * implementation of the current-process variable `up'.
+ */
+
+/*
+ * This structure must agree with FPsave and FPrestore asm routines
+ */
+typedef struct FPU FPU;
+struct FPU
+{
+	uchar	env[28];
+};
+
+#define KSTACK (16 * 1024)
+
+#ifndef USE_PTHREADS
+static __inline Proc *getup(void) {
+	Proc *p;
+	__asm__(	"mov	%0, %%sp;" 
+			: "=r" (p) 
+ 	); 
+	return *(Proc **)((uintptr)p & ~(KSTACK - 1));
+};
+#else
+extern	Proc*	getup(void);
+#endif
+
+#define	up	(getup())
+
+typedef sigjmp_buf osjmpbuf;
+#define	ossetjmp(buf)	sigsetjmp(buf, 1)