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sh: Kill off sh_bios_in_gdb_mode().

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With the reworked kgdb support, we always detach and reinitialize the
stub. This was mostly a feature for handoffs between sh-ipl+g and the
kgdb stub, but virtually no sh-ipl+g versions ever had this working
right in the first place.

Given that the sh-ipl+g stubs in general use today don't even support
the GDB stub, and we have already killed off the special casing in the
sh-sci serial driver, kill off this now unused symbol too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2008-12-17 11:47:59 +09:00
parent a9df1ed92f
commit ca0c14e447
2 changed files with 0 additions and 18 deletions
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1
arch/sh/include/asm/sh_bios.h
View File

@ -10,7 +10,6 @@
extern void sh_bios_console_write(const char *buf, unsigned int len); extern void sh_bios_console_write(const char *buf, unsigned int len);
extern void sh_bios_char_out(char ch); extern void sh_bios_char_out(char ch);
extern int sh_bios_in_gdb_mode(void);
extern void sh_bios_gdb_detach(void); extern void sh_bios_gdb_detach(void);
extern void sh_bios_get_node_addr(unsigned char *node_addr); extern void sh_bios_get_node_addr(unsigned char *node_addr);

17
arch/sh/kernel/sh_bios.c
View File

@ -9,11 +9,9 @@
#include <asm/sh_bios.h> #include <asm/sh_bios.h>
#define BIOS_CALL_CONSOLE_WRITE 0 #define BIOS_CALL_CONSOLE_WRITE 0
#define BIOS_CALL_READ_BLOCK 1
#define BIOS_CALL_ETH_NODE_ADDR 10 #define BIOS_CALL_ETH_NODE_ADDR 10
#define BIOS_CALL_SHUTDOWN 11 #define BIOS_CALL_SHUTDOWN 11
#define BIOS_CALL_CHAR_OUT 0x1f /* TODO: hack */ #define BIOS_CALL_CHAR_OUT 0x1f /* TODO: hack */
#define BIOS_CALL_GDB_GET_MODE_PTR 0xfe
#define BIOS_CALL_GDB_DETACH 0xff #define BIOS_CALL_GDB_DETACH 0xff
static inline long sh_bios_call(long func, long arg0, long arg1, long arg2, static inline long sh_bios_call(long func, long arg0, long arg1, long arg2,
@ -41,21 +39,6 @@ void sh_bios_char_out(char ch)
sh_bios_call(BIOS_CALL_CHAR_OUT, ch, 0, 0, 0); sh_bios_call(BIOS_CALL_CHAR_OUT, ch, 0, 0, 0);
} }
int sh_bios_in_gdb_mode(void)
{
static char queried = 0;
static char *gdb_mode_p = 0;
if (!queried) {
/* Query the gdb stub for address of its gdb mode variable */
long r = sh_bios_call(BIOS_CALL_GDB_GET_MODE_PTR, 0, 0, 0, 0);
if (r != ~0) /* BIOS returns -1 for unknown function */
gdb_mode_p = (char *)r;
queried = 1;
}
return (gdb_mode_p != 0 ? *gdb_mode_p : 0);
}
void sh_bios_gdb_detach(void) void sh_bios_gdb_detach(void)
{ {
sh_bios_call(BIOS_CALL_GDB_DETACH, 0, 0, 0, 0); sh_bios_call(BIOS_CALL_GDB_DETACH, 0, 0, 0, 0);