[coreboot] [v2] r4326 - in trunk/coreboot-v2/src: arch/ppc/lib config

Author: stepan
Date: 2009-05-30 17:12:33 +0200 (Sat, 30 May 2009)
New Revision: 4326

Added:
   trunk/coreboot-v2/src/arch/ppc/lib/abort.c
Modified:
   trunk/coreboot-v2/src/arch/ppc/lib/Config.lb
   trunk/coreboot-v2/src/config/Config.lb
Log:
Many Kudos go to Segher Boessenkool and Patrick Georgi for figuring this one
out. Fix the libgcc dependency on abort() due to nested functions.

Signed-off-by: Stefan Reinauer 
Acked-by: Stefan Reinauer

Modified: trunk/coreboot-v2/src/arch/ppc/lib/Config.lb
===================================================================
--- trunk/coreboot-v2/src/arch/ppc/lib/Config.lb	2009-05-29 18:41:09 UTC (rev 4325)
+++ trunk/coreboot-v2/src/arch/ppc/lib/Config.lb	2009-05-30 15:12:33 UTC (rev 4326)
@@ -8,6 +8,7 @@
 object timebase.S
 object floats.S
 object div64.S
+object abort.o
 initobject pci_dev.o
 initobject printk_init.o
 initobject timebase.S
@@ -15,3 +16,4 @@
 initobject floats.S
 initobject div64.S
 initobject ppc.o
+initobject abort.o

Added: trunk/coreboot-v2/src/arch/ppc/lib/abort.c
===================================================================
--- trunk/coreboot-v2/src/arch/ppc/lib/abort.c	                        (rev 0)
+++ trunk/coreboot-v2/src/arch/ppc/lib/abort.c	2009-05-30 15:12:33 UTC (rev 4326)
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+/* gcc produces calls to an abort function in their trampoline code on powerpc 
+ * 32bit platforms.
+ * This trampoline code is emitted for example in nested functions.
+ */
+
+void abort(void)
+{
+	/* We would want to call die() here, but it might not be available at
+	 * this point, so for now we have to die silently.
+	 */
+	for (;;) ;
+}
+

Modified: trunk/coreboot-v2/src/config/Config.lb
===================================================================
--- trunk/coreboot-v2/src/config/Config.lb	2009-05-29 18:41:09 UTC (rev 4325)
+++ trunk/coreboot-v2/src/config/Config.lb	2009-05-30 15:12:33 UTC (rev 4326)
@@ -47,7 +47,7 @@

makerule coreboot_ram.o
    depends	"src/arch/$(ARCH)/lib/c_start.o $(DRIVER) coreboot.a $(LIBGCC_FILE_NAME)" 
-	action	"$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ $^"
+	action	"$(CC) $(DISTRO_LFLAGS) -nostdlib -r -o $@ src/arch/$(ARCH)/lib/c_start.o $(DRIVER) -Wl,-( coreboot.a $(LIBGCC_FILE_NAME) -Wl,-)"
 end

makerule coreboot_ram