[vorbis-dev] alloca() problem with CodeWarrior

[Steve Nicolai]

Phil,

I think you will also need the following patch if you push the 
optimization level
above 2 when you compile with CW 5.3.  I did have RC2 working with 
optimization at
4 with this patch.

This patch is against RC2, but the affected routine is unchanged from 
RC2.

Index: vorbis/lib/psy.c
===================================================================
RCS file: /usr/local/cvsroot/vorbis/lib/psy.c,v
retrieving revision 1.50
diff -u -2 -r1.50 psy.c
--- vorbis/lib/psy.c	2001/08/13 01:36:57	1.50
+++ vorbis/lib/psy.c	2001/09/04 05:52:47
@@ -502,4 +502,7 @@
  }

+#pragma push
+#pragma optimization_level 2
+
  static void seed_chase(float *seeds, int linesper, long n){
    long  *posstack=alloca(n*sizeof(long));
@@ -558,4 +561,6 @@
  }

+#pragma pop
+
  /* bleaugh, this is more complicated than it needs to be */
  static void max_seeds(vorbis_look_psy *p,

Steve

<p>On Friday, March 15, 2002, at 05:59  AM, Phil Burk wrote:

> THANK YOU Ben!
> I applied the 5.3 patch for CodeWarrior 5.0 on Mac OS 9 and it fixed the
> problem with alloca() corrupting the stack pointer.

<p>--- >8 ----
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