From f3462aa952cfc8f4b095103cb9b3d306dd216558 Mon Sep 17 00:00:00 2001
From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 23 Oct 2013 15:07:53 +0200
Subject: [PATCH] Kbuild: Handle longer symbols in kallsyms.c
Also warn for too long symbols
v2: Add missing newline. Use 255 max (Joe Perches)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
scripts/kallsyms.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 487ac6f37ca2..967522ab4f39 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -27,7 +27,7 @@
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
#endif
-#define KSYM_NAME_LEN 128
+#define KSYM_NAME_LEN 255
struct sym_entry {
unsigned long long addr;
@@ -111,6 +111,12 @@ static int read_symbol(FILE *in, struct sym_entry *s)
fprintf(stderr, "Read error or end of file.\n");
return -1;
}
+ if (strlen(str) > KSYM_NAME_LEN) {
+ fprintf(stderr, "Symbol %s too long for kallsyms (%lu vs %d).\n"
+ "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
+ str, strlen(str), KSYM_NAME_LEN);
+ return -1;
+ }
sym = str;
/* skip prefix char */