sparc: Add kgdb support.
Current limitations:
1) On SMP single stepping has some fundamental issues,
shared with other sw single-step architectures such
as mips and arm.
2) On 32-bit sparc we don't support SMP kgdb yet. That
requires some reworking of the IPI mechanisms and
infrastructure on that platform.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h
index 4e08210c..b4b0244 100644
--- a/include/asm-sparc/system.h
+++ b/include/asm-sparc/system.h
@@ -94,6 +94,8 @@
} while(0)
#endif
+extern void flushw_all(void);
+
/*
* Flush windows so that the VM switch which follows
* would not pull the stack from under us.