Add support for Linux-like kallsysms
The kernel stores address<->symbol names in it so things can be decoded at
runtime. Do it in U-Boot, and we get nice symbol decoding when crashing.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/cpu/blackfin/system_map.S b/cpu/blackfin/system_map.S
deleted file mode 100644
index 286d7f3..0000000
--- a/cpu/blackfin/system_map.S
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * system_map.S - optional symbol lookup for debugging
- *
- * Copyright (c) 2007 Analog Devices Inc.
- * Licensed under the GPL-2 or later.
- */
-
-#include <config.h>
-
-#ifdef CONFIG_DEBUG_DUMP_SYMS
-.data
-.global _system_map
-.type _system_map,@object
-_system_map:
-#include SYM_FILE
-.asciz ""
-.size _system_map,.-_system_map
-#endif
diff --git a/cpu/blackfin/traps.c b/cpu/blackfin/traps.c
index 2121b0e..7e7c74c 100644
--- a/cpu/blackfin/traps.c
+++ b/cpu/blackfin/traps.c
@@ -171,38 +171,13 @@
# define ENABLE_DUMP 0
#endif
-#ifdef CONFIG_DEBUG_DUMP_SYMS
-# define ENABLE_DUMP_SYMS 1
-#else
-# define ENABLE_DUMP_SYMS 0
-#endif
-
-static const char *symbol_lookup(unsigned long addr, unsigned long *caddr)
+#ifndef CONFIG_KALLSYMS
+const char *symbol_lookup(unsigned long addr, unsigned long *caddr)
{
- if (!ENABLE_DUMP_SYMS)
- return NULL;
-
- extern const char system_map[] __attribute__((__weak__));
- const char *sym, *csym;
- char *esym;
- unsigned long sym_addr;
-
- sym = system_map;
- csym = NULL;
- *caddr = 0;
-
- while (*sym) {
- sym_addr = simple_strtoul(sym, &esym, 16);
- sym = esym;
- if (sym_addr > addr)
- break;
- *caddr = sym_addr;
- csym = sym;
- sym += strlen(sym) + 1;
- }
-
- return csym;
+ *caddr = addr;
+ return "N/A";
}
+#endif
static void decode_address(char *buf, unsigned long address)
{