kdb: fix compile error without CONFIG_KALLSYMS
authorJason Wessel <jason.wessel@windriver.com>
Mon, 16 Aug 2010 20:58:29 +0000 (15:58 -0500)
committerJason Wessel <jason.wessel@windriver.com>
Mon, 16 Aug 2010 20:58:29 +0000 (15:58 -0500)
commitb590cddfa6f40447158323b43a13cdae01d9a051
treec844374c791d69930b57173d34b2cef917281a02
parentda5cabf80e2433131bf0ed8993abc0f7ea618c73
kdb: fix compile error without CONFIG_KALLSYMS

If CONFIG_KGDB_KDB is set and CONFIG_KALLSYMS is not set the kernel
will fail to build with the error:

kernel/built-in.o: In function `kallsyms_symbol_next':
kernel/debug/kdb/kdb_support.c:237: undefined reference to `kdb_walk_kallsyms'
kernel/built-in.o: In function `kallsyms_symbol_complete':
kernel/debug/kdb/kdb_support.c:193: undefined reference to `kdb_walk_kallsyms'

The kdb_walk_kallsyms needs a #ifdef proper header to match the C
implementation.  This patch also fixes the compiler warnings in
kdb_support.c when compiling without CONFIG_KALLSYMS set.  The
compiler warnings are a result of the kallsyms_lookup() macro not
initializing the two of the pass by reference variables.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Reported-by: Michal Simek <monstr@monstr.eu>
kernel/debug/kdb/kdb_private.h
kernel/debug/kdb/kdb_support.c