linux-kernel - [PATCH v2] x86/boot: Add ability to call printf in video modes initialization

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Date:	Wed,  7 Jan 2015 19:54:54 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org,
	Alexander Kuleshov <kuleshovmail@...il.com>
Subject: [PATCH v2] x86/boot: Add ability to call printf in video modes initialization

Added ability to call printf in video-mode.c, video-bios.c, video-vesa.c and
video-vga.c for debugging purposes.

Signed-off-by: Alexander Kuleshov <kuleshovmail@...il.com>
---
 arch/x86/realmode/rm/Makefile | 3 +++
 arch/x86/realmode/rm/printf.c | 1 +
 arch/x86/realmode/rm/string.c | 1 +
 arch/x86/realmode/rm/tty.c    | 1 +
 4 files changed, 6 insertions(+)
 create mode 100644 arch/x86/realmode/rm/printf.c
 create mode 100644 arch/x86/realmode/rm/string.c
 create mode 100644 arch/x86/realmode/rm/tty.c

diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
index 7c0d7be..7354820 100644
--- a/arch/x86/realmode/rm/Makefile
+++ b/arch/x86/realmode/rm/Makefile
@@ -19,6 +19,9 @@ wakeup-objs	+= video-vga.o
 wakeup-objs	+= video-vesa.o
 wakeup-objs	+= video-bios.o
 
+realmode-y                      += string.o
+realmode-y                      += tty.o
+realmode-y                      += printf.o
 realmode-y			+= header.o
 realmode-y			+= trampoline_$(BITS).o
 realmode-y			+= stack.o
diff --git a/arch/x86/realmode/rm/printf.c b/arch/x86/realmode/rm/printf.c
new file mode 100644
index 0000000..bae7729
--- /dev/null
+++ b/arch/x86/realmode/rm/printf.c
@@ -0,0 +1 @@
+#include "../../boot/printf.c"
diff --git a/arch/x86/realmode/rm/string.c b/arch/x86/realmode/rm/string.c
new file mode 100644
index 0000000..cbd5413
--- /dev/null
+++ b/arch/x86/realmode/rm/string.c
@@ -0,0 +1 @@
+#include "../../boot/string.c"
diff --git a/arch/x86/realmode/rm/tty.c b/arch/x86/realmode/rm/tty.c
new file mode 100644
index 0000000..d915398
--- /dev/null
+++ b/arch/x86/realmode/rm/tty.c
@@ -0,0 +1 @@
+#include "../../boot/tty.c"
-- 
2.2.1.212.gc5b9256

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