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Subject[PATCH] kgdb: depends on VT
Date
With VT=n, the kernel build fails with:
drivers/built-in.o: In function `kgdboc_pre_exp_handler':
kgdboc.c:(.text+0x7b5aa): undefined reference to `fg_console'
kgdboc.c:(.text+0x7b5ce): undefined reference to `vc_cons'
kgdboc.c:(.text+0x7b5d5): undefined reference to `vc_cons'

kgdboc.o is built when KGDB_SERIAL_CONSOLE is set. So make
KGDB_SERIAL_CONSOLE depend on HW_CONSOLE which includes those symbols.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: "Jim Davis" <jim.epost@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: <kgdb-bugreport@lists.sourceforge.net>
Cc: <linux-serial@vger.kernel.org>
---
lib/Kconfig.kgdb | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb
index c635a107a7de..533f912638ed 100644
--- a/lib/Kconfig.kgdb
+++ b/lib/Kconfig.kgdb
@@ -22,7 +22,7 @@ config KGDB_SERIAL_CONSOLE
tristate "KGDB: use kgdb over the serial console"
select CONSOLE_POLL
select MAGIC_SYSRQ
- depends on TTY
+ depends on TTY && HW_CONSOLE
default y
help
Share a serial console with kgdb. Sysrq-g must be used
--
2.7.0
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