3 Commits

Author	SHA1	Message	Date
Josh Triplett	3afed06a35	x86, boot: Don't compile early_serial_console.c when !CONFIG_EARLY_PRINTK ... All the code in early_serial_console.c gets compiled out if !CONFIG_EARLY_PRINTK, but early_serial_console.o itself still gets compiled in. Eliminate it from the compile entirely in that case. This does not change the generated code at all, in either case. Signed-off-by: Josh Triplett <josh@joshtriplett.org>	2014-08-17 14:58:24 -07:00
Joe Millenbach	cec49df9d3	x86, boot: Exclude early_serial_console.c if can't use it. ... Removes early_serial_console.c code if we don't have the config option that enables it (EARLY_PRINTK). When disabling this code, make early_serial_base a constant 0 to allow the compiler to optimize away the code that checks for early_serial_base. Signed-off-by: Joe Millenbach <jmillenbach@gmail.com> Link: http://lkml.kernel.org/r/1342746282-28497-7-git-send-email-jmillenbach@gmail.com Signed-off-by: Gokul Caushik <caushik1@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>	2012-07-21 11:07:34 -07:00
Yinghai Lu	8fee13a48e	x86, setup: enable early console output from the decompressor ... This enables the decompressor output to be seen on the serial console. Most of the code is shared with the regular boot code. We could add printf to the decompressor if needed, but currently there is no sufficiently compelling user. -v2: define BOOT_BOOT_H to avoid include boot.h -v3: early_serial_base need to be static in misc.c ? -v4: create seperate string.c printf.c cmdline.c early_serial_console.c after hpa's patch that allow global variables in compressed/misc stage -v5: remove printf.c related Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>	2010-08-02 20:32:20 -07:00