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authorDavid Woodhouse <dwmw2@infradead.org>2008-06-03 14:59:40 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2008-06-04 14:56:12 +0100
commita29ccf6f823a84d89e1c7aaaf221cf7282022024 (patch)
treee65d84633a98d46ef81373e5d190c6cdc0e4282b /include/linux
parent1beee8dc8cf58e3f605bd7b34d7a39939be7d8d2 (diff)
Make console charset translation optional
By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/consolemap.h14
-rw-r--r--include/linux/vt_kern.h19
2 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/consolemap.h b/include/linux/consolemap.h
index e2bf7e5db39a..c4811da1338b 100644
--- a/include/linux/consolemap.h
+++ b/include/linux/consolemap.h
@@ -3,6 +3,9 @@
*
* Interface between console.c, selection.c and consolemap.c
*/
+#ifndef __LINUX_CONSOLEMAP_H__
+#define __LINUX_CONSOLEMAP_H__
+
#define LAT1_MAP 0
#define GRAF_MAP 1
#define IBMPC_MAP 2
@@ -10,6 +13,7 @@
#include <linux/types.h>
+#ifdef CONFIG_CONSOLE_TRANSLATIONS
struct vc_data;
extern u16 inverse_translate(struct vc_data *conp, int glyph, int use_unicode);
@@ -18,3 +22,13 @@ extern int conv_uni_to_pc(struct vc_data *conp, long ucs);
extern u32 conv_8bit_to_uni(unsigned char c);
extern int conv_uni_to_8bit(u32 uni);
void console_map_init(void);
+#else
+#define inverse_translate(conp, glyph, uni) ((uint16_t)glyph)
+#define set_translate(m, vc) ((unsigned short *)NULL)
+#define conv_uni_to_pc(conp, ucs) ((int) (ucs > 0xff ? -1: ucs))
+#define conv_8bit_to_uni(c) ((uint32_t)(c))
+#define conv_uni_to_8bit(c) ((int) ((c) & 0xff))
+#define console_map_init(c) do { ; } while (0)
+#endif /* CONFIG_CONSOLE_TRANSLATIONS */
+
+#endif /* __LINUX_CONSOLEMAP_H__ */
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 9448ffbdcbf6..14c0e91be9b5 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -12,6 +12,7 @@
#include <linux/mutex.h>
#include <linux/console_struct.h>
#include <linux/mm.h>
+#include <linux/consolemap.h>
/*
* Presently, a lot of graphics programs do not restore the contents of
@@ -54,6 +55,7 @@ void redraw_screen(struct vc_data *vc, int is_switch);
struct tty_struct;
int tioclinux(struct tty_struct *tty, unsigned long arg);
+#ifdef CONFIG_CONSOLE_TRANSLATIONS
/* consolemap.c */
struct unimapinit;
@@ -71,6 +73,23 @@ void con_free_unimap(struct vc_data *vc);
void con_protect_unimap(struct vc_data *vc, int rdonly);
int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc);
+#define vc_translate(vc, c) ((vc)->vc_translate[(c) | \
+ (vc)->vc_toggle_meta ? 0x80 : 0])
+#else
+#define con_set_trans_old(arg) (0)
+#define con_get_trans_old(arg) (-EINVAL)
+#define con_set_trans_new(arg) (0)
+#define con_get_trans_new(arg) (-EINVAL)
+#define con_clear_unimap(vc, ui) (0)
+#define con_set_unimap(vc, ct, list) (0)
+#define con_set_default_unimap(vc) (0)
+#define con_copy_unimap(d, s) (0)
+#define con_get_unimap(vc, ct, uct, list) (-EINVAL)
+#define con_free_unimap(vc) do { ; } while (0)
+
+#define vc_translate(vc, c) (c)
+#endif
+
/* vt.c */
int vt_waitactive(int vt);
void change_console(struct vc_data *new_vc);