Since the kernel links against libgcc.a and we use some C++ features that cause functions of libgcc.a to be included that use a couple of formerly undefined symbols (stderr, fprintf, abort, debugger) those had to be added to kernel_cpp.cpp. We don't build the kernel utils as static library anymore, since libgcc.a is listed at the end of the link command line and trying to change that would be a bit ugly. For C++ in the boot loader nothing changes.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9554 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/util/kernel_cpp.h

@@ -71,10 +71,15 @@ operator delete[](void *ptr) throw ()
 	free(ptr);
 }
 
-// we're using virtuals
+// only needed in the boot loader
+#ifndef _BOOT_MODE
+
 extern "C" void __pure_virtual();
 
+#endif	// #if _BOOT_MODE
+
 #endif	// #if _KERNEL_MODE
+
 #endif	// __cplusplus
 
 #endif	/* KERNEL_CPP_H */

src/kernel/Jamfile

@@ -54,11 +54,11 @@ KernelLd kernel :
 	kernel_cache.o
 	kernel_device_manager.o
 	kernel_disk_device_manager.o
+	kernel_util.o
 
 	libbus.a
 	lib$(OBOS_ARCH).a
 	libdrivers.a
-	libkernel_util.a
 
 	linkhack.so
 
@@ -83,11 +83,11 @@ KernelLd kernel.so :
 	kernel_cache.o
 	kernel_device_manager.o
 	kernel_disk_device_manager.o
+	kernel_util.o
 
 	libbus.a
 	lib$(OBOS_ARCH).a
 	libdrivers.a
-	libkernel_util.a
 
 	linkhack.so
 

src/kernel/core/util/Jamfile

@@ -1,8 +1,8 @@
 SubDir OBOS_TOP src kernel core util ;
 
-KernelStaticLibrary libkernel_util : 
+KernelMergeObject kernel_util.o :
-	<$(SOURCE_GRIST)>list.c
+	list.c
-	<$(SOURCE_GRIST)>kernel_cpp.cpp
+	kernel_cpp.cpp
-	:
+
-	-fno-pic -Wno-unused -D_KERNEL_MODE
+	: -fno-pic -Wno-unused -D_KERNEL_MODE
 	;

src/kernel/core/util/kernel_cpp.cpp

@@ -4,7 +4,8 @@
 ** This file may be used under the terms of the OpenBeOS License.
 */
 
-#if _KERNEL_MODE
+// stripped down C++ support for the boot loader
+#ifdef _BOOT_MODE
 
 #include "util/kernel_cpp.h"
 
@@ -27,4 +28,39 @@ __cxa_pure_virtual()
 
 #endif
 
+
+// full C++ support in the kernel
+#elif _KERNEL_MODE	// #endif _BOOT_MODE
+
+#include <stdio.h>
+
+#include <KernelExport.h>
+
+#include "util/kernel_cpp.h"
+
+FILE *stderr = NULL;
+
+extern "C"
+int
+fprintf(FILE *f, const char *format, ...)
+{
+	// TODO: Introduce a vdprintf()...
+	dprintf("fprintf(`%s',...)\n", format);
+	return 0;
+}
+
+extern "C"
+void
+abort()
+{
+	panic("abort() called!");
+}
+
+extern "C"
+void
+debugger(const char *message)
+{
+	kernel_debugger(message);
+}
+
 #endif	// _#if KERNEL_MODE