[PATCH] fix compile of denx rtai ppc with gcc 3.3.2

[PATCH] fix compile of denx rtai ppc with gcc 3.3.2

[Andrew Dennison]

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I had a few problems compiling Denx RTAI for ppc with gcc 3.3.2. Attached
patches seem to fix this - at least the examples run on my MPC5200. Changes
still compile ok on 2.95.4.

For linuxppc_devel patched with
patch-denx-linuxppc_2_4_devel-LABEL_2003_12_22_1500-ltt:

Change formatting of __asm__ in ltt_clear_bit to be similar to ltt_set_bit
to fix compile error.

For rtai-24.1.12-denx.tar.bz2:

Fix clobber list to fix compile error on gcc 3.3.2.

Andrew

[-- Attachment #2: rtai-24.1.12-denx.patch --]
[-- Type: application/octet-stream, Size: 547 bytes --]

diff -ur rtai-24.1.12.orig/include/asm-ppc/rtai_srq.h rtai-24.1.12/include/asm-ppc/rtai_srq.h
--- rtai-24.1.12.orig/include/asm-ppc/rtai_srq.h	Tue Oct 24 11:32:28 2000
+++ rtai-24.1.12/include/asm-ppc/rtai_srq.h	Thu Mar 18 14:38:35 2004
@@ -33,8 +33,7 @@
 		("trap         \n\t"
 		: "=&r" (__sc_3), "=&r" (__sc_4)
 		: "0"   (__sc_3), "1"   (__sc_4),
-	          "r"   (__sc_0)
-		: "r0", "r3", "r4" );
+	          "r"   (__sc_0));
 	((unsigned long *)&retval)[0] = __sc_3;
 	((unsigned long *)&retval)[1] = __sc_4;
 	return retval;

[-- Attachment #3: LABEL_2003_12_22_1500-ltt.patch --]
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--- drivers/trace/tracer.h.orig	Fri Mar 19 17:41:14 2004
+++ drivers/trace/tracer.h	Mon Mar 22 10:03:58 2004
@@ -176,14 +176,14 @@
 	unsigned long mask = 1 << (24 - (nr & 0x18) + (nr & 0x7));
 	volatile unsigned long *p = ((volatile unsigned long *)addr) + (nr >> 5);
 
-	__asm__ __volatile__("\n\
-1:	lwarx	%0,0,%3
-	andc	%1,%0,%2
-	stwcx.	%1,0,%3
-	bne	1b"
-	: "=&r" (old), "=&r" (t)	/*, "=m" (*p)*/
-	: "r" (mask), "r" (p)
-      /*: "cc"*/);
+	__asm__ __volatile__(
+		"1:lwarx	%0,0,%3 \n\t"
+		"andc	%1,%0,%2 \n\t"
+		"stwcx.	%1,0,%3 \n\t"
+		"bne	1b \n\t"
+		: "=&r" (old), "=&r" (t)	/*, "=m" (*p)*/
+		: "r" (mask), "r" (p)
+      		/*: "cc"*/);
 
 	return (old & mask) != 0;
 }

RE: [PATCH] fix compile of denx rtai ppc with gcc 3.3.2

[Wolfgang Grandegger]

>-- Original Message --
>From: "Andrew Dennison" <andrew.dennison@motec.com.au>
>To: <linuxppc-embedded@lists.linuxppc.org>
>Subject: [PATCH] fix compile of denx rtai ppc with gcc 3.3.2
>Date: Mon, 22 Mar 2004 14:38:35 +1100
>
>
>I had a few problems compiling Denx RTAI for ppc with gcc 3.3.2. Attached
>patches seem to fix this - at least the examples run on my MPC5200. Changes
>still compile ok on 2.95.4.
>
>For linuxppc_devel patched with
>patch-denx-linuxppc_2_4_devel-LABEL_2003_12_22_1500-ltt:
>
>Change formatting of __asm__ in ltt_clear_bit to be similar to ltt_set_bit
>to fix compile error.
>
>For rtai-24.1.12-denx.tar.bz2:
>
>Fix clobber list to fix compile error on gcc 3.3.2.

Thanks for the patches. I'm going to verify and commit them
into the RTAI 24.x and 3.x CVS repositories a.s.a.p.

This issue is off-topic on this list. Please send RTAI related
mails to rtai@rtai.org.

Wolfgang.


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