[src/trunk]: src/sys/arch/m68k/include Only on the 68010, define a different ...

[fredette <fredette%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/14e28022beb1
branches:  trunk
changeset: 510074:14e28022beb1
user:      fredette <fredette%NetBSD.org@localhost>
date:      Fri May 18 15:33:03 2001 +0000

description:
Only on the 68010, define a different mcount() function,
one that doesn't use the memory-indirect addressing mode.

diffstat:

 sys/arch/m68k/include/profile.h |  17 ++++++++++++++++-
 1 files changed, 16 insertions(+), 1 deletions(-)

diffs (38 lines):

diff -r 2efdc650e6c4 -r 14e28022beb1 sys/arch/m68k/include/profile.h
--- a/sys/arch/m68k/include/profile.h   Fri May 18 15:31:38 2001 +0000
+++ b/sys/arch/m68k/include/profile.h   Fri May 18 15:33:03 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: profile.h,v 1.10 2000/12/07 10:14:09 kleink Exp $      */
+/*     $NetBSD: profile.h,v 1.11 2001/05/18 15:33:03 fredette Exp $    */
 
 /*
  * Copyright (c) 1992, 1993
@@ -43,6 +43,7 @@
 #define        MCOUNT_ENTRY    "mcount"
 #endif
 
+#ifndef        __mc68010__
 #define        MCOUNT \
 extern void mcount __P((void)) __asm__(MCOUNT_ENTRY); void mcount() { \
        int selfpc, frompcindex; \
@@ -50,6 +51,20 @@
        __asm__("movl %%a6@(0)@(4),%0" : "=r" (frompcindex)); \
        _mcount(frompcindex, selfpc); \
 }
+#else  /* __mc68010__ */
+/*
+ * The 68010 doesn't have the memory indirect addressing mode
+ * that the above definition of mcount uses, so we're forced
+ * to do something different.
+ */
+#define        MCOUNT \
+extern void mcount __P((void)) __asm__("mcount"); void mcount() { \
+       int selfpc, frompcindex; \
+       __asm__("movl %%a6@(4),%0" : "=r" (selfpc)); \
+       __asm__("movl %%a6@(0),%%a0 ; movl %%a0@(4),%0" : "=r" (frompcindex) : /* no inputs */ : "a0"); \
+       _mcount(frompcindex, selfpc); \
+}
+#endif /* __mc68010__ */
 
 #ifdef _KERNEL
 /*