2013-09-26 17:14:40 +02:00

54 lines
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$NetBSD: patch-ad,v 1.2 2004/03/02 16:05:01 adam Exp $
--- callback/trampoline_r/trampoline.c.orig 2004-01-26 15:00:05.000000000 +0000
+++ callback/trampoline_r/trampoline.c
@@ -283,7 +283,7 @@ extern void __TR_clear_cache();
#define TRAMP_LENGTH 32
#define TRAMP_ALIGN 4
#endif
-#ifdef __rs6000sysv4__
+#if defined(__rs6000sysv4__) || defined(__rs6000netbsd__)
#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
@@ -878,6 +878,39 @@ __TR_function alloc_trampoline_r (addres
#define tramp_data(function) \
hilo(*(unsigned short *) (function + 2), *(unsigned short *) (function + 6))
#endif
+#ifdef __rs6000netbsd__
+ /* function:
+ * {liu|lis} 13,hi16(<data>) 3D A0 hi16(<data>)
+ * {oril|ori} 13,13,lo16(<data>) 61 AD lo16(<data>)
+ * {liu|lis} 0,hi16(<address>) 3C 00 hi16(<address>)
+ * {oril|ori} 0,0,lo16(<address>) 60 00 lo16(<address>)
+ * mtctr 0 7C 09 03 A6
+ * bctr 4E 80 04 20
+ */
+ *(short *) (function + 0) = 0x3DA0;
+ *(short *) (function + 2) = (unsigned long) data >> 16;
+ *(short *) (function + 4) = 0x61AD;
+ *(short *) (function + 6) = (unsigned long) data & 0xffff;
+ *(short *) (function + 8) = 0x3C00;
+ *(short *) (function +10) = (unsigned long) address >> 16;
+ *(short *) (function +12) = 0x6000;
+ *(short *) (function +14) = (unsigned long) address & 0xffff;
+ *(long *) (function +16) = 0x7C0903A6;
+ *(long *) (function +20) = 0x4E800420;
+#define is_tramp(function) \
+ *(unsigned short *) (function + 0) == 0x3DA0 && \
+ *(unsigned short *) (function + 4) == 0x61AD && \
+ *(unsigned short *) (function + 8) == 0x3C00 && \
+ *(unsigned short *) (function +12) == 0x6000 && \
+ *(unsigned long *) (function +16) == 0x7C0903A6 && \
+ *(unsigned long *) (function +20) == 0x4E800420
+#define hilo(hiword,loword) \
+ (((unsigned long) (hiword) << 16) | (unsigned long) (loword))
+#define tramp_address(function) \
+ hilo(*(unsigned short *) (function +10), *(unsigned short *) (function +14))
+#define tramp_data(function) \
+ hilo(*(unsigned short *) (function + 2), *(unsigned short *) (function + 6))
+#endif
#ifdef __rs6000aix__
/* function:
* .long .tramp_r