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It looks like the compiler's problem: it makes a implicit definition of __trap_to_gdb on the <asm/debugger.h>. This will cause the redundancy definition warning and stop the build process in default compiling setting.
diff -r d1f6d0f820d8 xen/include/asm-powerpc/debugger.h
--- a/xen/include/asm-powerpc/debugger.h Mon Oct 02 21:43:09 2006 -0400
+++ b/xen/include/asm-powerpc/debugger.h Tue Oct 03 11:49:57 2006 -0400
@@ -74,6 +74,10 @@ extern void __warn(char *file, int line)
#include <xen/gdbstub.h>
+#ifndef TRAP_TO_GDB
+extern int __trap_to_gdb(struct cpu_user_regs *regs, unsigned long cookie);
+#define TRAP_TO_GDB
+#endif
static inline int debugger_trap_fatal(
unsigned int vector, struct cpu_user_regs *regs)
{
diff -r d1f6d0f820d8 xen/include/xen/gdbstub.h
--- a/xen/include/xen/gdbstub.h Mon Oct 02 21:43:09 2006 -0400
+++ b/xen/include/xen/gdbstub.h Tue Oct 03 11:50:50 2006 -0400
@@ -56,8 +56,10 @@ void gdb_send_reply(const char *buf, str
void gdb_send_reply(const char *buf, struct gdb_context *ctx);
/* gdb stub trap handler: entry point */
+#ifndef TRAP_TO_GDB
int __trap_to_gdb(struct cpu_user_regs *regs, unsigned long cookie);
-
+#define TRAP_TO_GDB
+#endif
/* arch specific routines */
u16 gdb_arch_signal_num(
struct cpu_user_regs *regs, unsigned long cookie);
Best Regards,
Yi Ge
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