Re: [MiNT] Patch: shel_write() did not call the PureC patcher

[Jo Even Skarstein <joska@online.no>]

On Wed, 2012-03-21 at 12:27 +0100, Jo Even Skarstein wrote:
> Coldfire: Programs compiled with PureC is now patched also when launched  
> with XaAES shel_write().

The latest FireTOS beta now exports it's more advanced PureC patcher.
I've made a small change to make use of this in MiNT. Unfortunately I
have currently no place to set up my Firebee so I can't test it myself.
Could someone with a FireBee and the latest FireTOS beta apply this
patch and test it? Thanks :)

Jo Even

--- freemint_orig/sys/memory.c	2012-11-06 20:05:45.533397105 +0100
+++ freemint/sys/memory.c	2013-01-04 22:38:43.287525053 +0100
@@ -13,6 +13,7 @@
 
 # include "memory.h"
 # include "global.h"
+# include "cookie.h"
 
 # include "libkern/libkern.h"
 # include "mint/basepage.h"
@@ -1622,7 +1623,18 @@
 		 * emulated via illegal instruction handler on ColdFire,
 		 * so they require to be dynamically patched.
 		 */
-		patch_memset_purec(b);
+		static void (*coldfire_purec_patcher)(BASEPAGE*) = NULL;
+
+		if (coldfire_purec_patcher == NULL)
+		{
+			ulong pexe = NULL;
+			if (get_toscookie(0x50455845L, &pexe))
+				coldfire_purec_patcher = (void (*)(BASEPAGE*))pexe;  // Patcher exported from FireTOS.
+			else
+				coldfire_purec_patcher = patch_memset_purec; // Fallback to internal MiNT patcher.
+		}
+
+		coldfire_purec_patcher(b);
 	}
 #endif