Commit ca0c14e4 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Kill off sh_bios_in_gdb_mode(). 



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: default avatarPaul Mundt <lethal@linux-sh.org>
parent a9df1ed9

arch/sh/include/asm/sh_bios.h

+0 −1
Original line number Diff line number Diff line
@@ -10,7 +10,6 @@ 


extern void sh_bios_console_write(const char *buf, unsigned int len);

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_get_node_addr(unsigned char *node_addr);

arch/sh/kernel/sh_bios.c

+0 −17
Original line number Diff line number Diff line
@@ -9,11 +9,9 @@ 
#include <asm/sh_bios.h>



#define BIOS_CALL_CONSOLE_WRITE		0

#define BIOS_CALL_READ_BLOCK		1

#define BIOS_CALL_ETH_NODE_ADDR		10

#define BIOS_CALL_SHUTDOWN		11

#define BIOS_CALL_CHAR_OUT		0x1f	/* TODO: hack */

#define BIOS_CALL_GDB_GET_MODE_PTR	0xfe

#define BIOS_CALL_GDB_DETACH		0xff



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);

}



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)

{

	sh_bios_call(BIOS_CALL_GDB_DETACH, 0, 0, 0, 0);

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