diff -uNr greenlet-0.2.orig/slp_platformselect.h greenlet-0.2/slp_platformselect.h
--- greenlet-0.2.orig/slp_platformselect.h	2010-01-20 17:49:32.926801786 +0100
+++ greenlet-0.2/slp_platformselect.h	2010-01-20 17:49:20.016801753 +0100
@@ -20,4 +20,6 @@
 #include "switch_s390_unix.h"	/* Linux/S390 zSeries (identical) */
 #elif defined(__GNUC__) && defined(__arm__) && defined(__APPLE__)
 #include "switch_arm_iphoneos_gcc.h" /* Apple IPhoneOS on arm hardware with gcc */
+#elif defined(__GNUC__) && defined(__arm__)
+#include "switch_arm32_gcc.h" /* gcc using arm32 */
 #endif
diff -uNr greenlet-0.2.orig/switch_arm32_gcc.h greenlet-0.2/switch_arm32_gcc.h
--- greenlet-0.2.orig/switch_arm32_gcc.h	1970-01-01 01:00:00.000000000 +0100
+++ greenlet-0.2/switch_arm32_gcc.h	2010-01-20 17:58:18.016801444 +0100
@@ -0,0 +1,55 @@
+/*
+ * this is the internal transfer function.
+ *
+ * HISTORY
+ * 14-Aug-06 File creation. Ported from Arm Thumb. Sylvain Baro
+ *  3-Sep-06 Commented out saving of r1-r3 (r4 already commented out) as I
+ *           read that these do not need to be saved.  Also added notes and
+ *           errors related to the frame pointer. Richard Tew.
+ * 20-Jan-10 According to ARM Prodcedure Call Standard handbook
+ *           r4-r8 and r10-r11 have to be saved. r10-r11 is regarded as
+ *           "fp" on some architectures, such as Feroceon.
+ *           Therefore I've added another FP check.
+ *
+ * POSSIBLE ERRORS
+ *
+ *   "Illegal instruction" with GCC
+ *
+ *   - You have to set correct -march CFLAG and most probably
+ *     -fomit-frame-pointer. E.g., for SheevaPlug it is -march=armv5te
+ *
+ */
+
+#define STACK_REFPLUS 1
+
+#ifdef SLP_EVAL
+#define STACK_MAGIC 0
+#if defined (__VFP_FP__) && !defined(__SOFTFP__)
+#define REGS_TO_SAVE "r4", "r5", "r6", "r7", "r8", "fp", "ip", "lr"
+#else // for armv5tel and friends
+#define REGS_TO_SAVE "r4", "r5", "r6", "r7", "r8", /* "r10", "r11", */ "ip", "lr"
+#endif
+
+static int
+slp_switch(void)
+{
+	register int *stackref, stsizediff;
+	__asm__ volatile ("" : : : REGS_TO_SAVE);
+	__asm__ ("mov %0,sp" : "=g" (stackref));
+	{
+		SLP_SAVE_STATE(stackref, stsizediff);
+		__asm__ volatile (
+		    "add sp,sp,%0\n"
+#if defined (__VFP_FP__) && !defined(__SOFTFP__)
+		    "add fp,fp,%0\n"
+#endif
+		    :
+		    : "r" (stsizediff)
+		    );
+		SLP_RESTORE_STATE();
+		return 0;
+	}
+	__asm__ volatile ("" : : : REGS_TO_SAVE);
+}
+
+#endif