[PATCH 70/74] Kbuild, lto: Handle longer symbols in kallsyms.c

[Andi Kleen]

From: Andi Kleen <a...@linux.intel.com>

Also warn for too long symbols

Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
 scripts/kallsyms.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 487ac6f..acde016 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          256
 
 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.\n"
+                                "Please increae KSYM_NAME_LEN both in kernel 
and kallsyms.c",
+                       str);
+               return -1;
+       }
 
        sym = str;
        /* skip prefix char */
-- 
1.7.7.6

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