kgdb: add default generic stubs

The default kgdb functions can be implemented with common U-Boot functions, so rather than force everyone to copy & paste these things, create a set of weak stubs. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>

kgdb: add default generic stubs
The default kgdb functions can be implemented with common U-Boot functions, so rather than force everyone to copy & paste these things, create a set of weak stubs. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Robin Getz · Wolfgang Denk
1 parent fa2744de65
Showing 2 changed files with 65 additions and 1 deletions Side-by-side Diff
common/Makefile
common/kgdb_stubs.c
@@ -157,7 +157,7 @@
 COBJS-$(CONFIG_HWCONFIG) += hwconfig.o
 COBJS-$(CONFIG_CONSOLE_MUX) += iomux.o
 COBJS-y += flash.o
-COBJS-$(CONFIG_CMD_KGDB) += kgdb.o
+COBJS-$(CONFIG_CMD_KGDB) += kgdb.o kgdb_stubs.o
 COBJS-$(CONFIG_KALLSYMS) += kallsyms.o
 COBJS-$(CONFIG_LCD) += lcd.o
 COBJS-$(CONFIG_LYNXKDI) += lynxkdi.o
+/*
+ * U-boot - stub functions for common kgdb code,
+ *          can be overridden in board specific files
+ *
+ * Copyright 2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <kgdb.h>
+
+int (*debugger_exception_handler)(struct pt_regs *);
+
+__attribute__((weak))
+void kgdb_serial_init(void)
+{
+	puts("[on serial] ");
+}
+
+__attribute__((weak))
+void putDebugChar(int c)
+{
+	serial_putc(c);
+}
+
+__attribute__((weak))
+void putDebugStr(const char *str)
+{
+#ifdef DEBUG
+	serial_puts(str);
+#endif
+}
+
+__attribute__((weak))
+int getDebugChar(void)
+{
+	return serial_getc();
+}
+
+__attribute__((weak))
+void kgdb_interruptible(int yes)
+{
+	return;
+}
+
+__attribute__((weak))
+void kgdb_flush_cache_range(void *from, void *to)
+{
+	flush_cache((unsigned long)from, (unsigned long)(to - from));
+}
+
+__attribute__((weak))
+void kgdb_flush_cache_all(void)
+{
+	if (dcache_status()) {
+		dcache_disable();
+		dcache_enable();
+	}
+	if (icache_status()) {
+		icache_disable();
+		icache_enable();
+	}
+}
...	...	@@ -157,7 +157,7 @@
157	157	COBJS-$(CONFIG_HWCONFIG) += hwconfig.o
158	158	COBJS-$(CONFIG_CONSOLE_MUX) += iomux.o
159	159	COBJS-y += flash.o
160		-COBJS-$(CONFIG_CMD_KGDB) += kgdb.o
	160	+COBJS-$(CONFIG_CMD_KGDB) += kgdb.o kgdb_stubs.o
161	161	COBJS-$(CONFIG_KALLSYMS) += kallsyms.o
162	162	COBJS-$(CONFIG_LCD) += lcd.o
163	163	COBJS-$(CONFIG_LYNXKDI) += lynxkdi.o
	1	+/*
	2	+ * U-boot - stub functions for common kgdb code,
	3	+ * can be overridden in board specific files
	4	+ *
	5	+ * Copyright 2009 Analog Devices Inc.
	6	+ *
	7	+ * Licensed under the GPL-2 or later.
	8	+ */
	9	+
	10	+#include <common.h>
	11	+#include <kgdb.h>
	12	+
	13	+int (debugger_exception_handler)(struct pt_regs );
	14	+
	15	+__attribute__((weak))
	16	+void kgdb_serial_init(void)
	17	+{
	18	+ puts("[on serial] ");
	19	+}
	20	+
	21	+__attribute__((weak))
	22	+void putDebugChar(int c)
	23	+{
	24	+ serial_putc(c);
	25	+}
	26	+
	27	+__attribute__((weak))
	28	+void putDebugStr(const char *str)
	29	+{
	30	+#ifdef DEBUG
	31	+ serial_puts(str);
	32	+#endif
	33	+}
	34	+
	35	+__attribute__((weak))
	36	+int getDebugChar(void)
	37	+{
	38	+ return serial_getc();
	39	+}
	40	+
	41	+__attribute__((weak))
	42	+void kgdb_interruptible(int yes)
	43	+{
	44	+ return;
	45	+}
	46	+
	47	+__attribute__((weak))
	48	+void kgdb_flush_cache_range(void from, void to)
	49	+{
	50	+ flush_cache((unsigned long)from, (unsigned long)(to - from));
	51	+}
	52	+
	53	+__attribute__((weak))
	54	+void kgdb_flush_cache_all(void)
	55	+{
	56	+ if (dcache_status()) {
	57	+ dcache_disable();
	58	+ dcache_enable();
	59	+ }
	60	+ if (icache_status()) {
	61	+ icache_disable();
	62	+ icache_enable();
	63	+ }
	64	+}