From: Joe Mario <jmario@xxxxxxxxxx>
[AK: This seems like a ticking time bomb even without LTO,
so should be merged now. It causes very weird problems.
Thanks to Joe for tracking them down.]
With the added postfixes that LTO adds for local
symbols, the longest name in the kernel overflows
the namebuf[KSYM_NAME_LEN] array by two bytes. That name is:
__pci_fixup_resumePCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_HT1000SBquirk_disable_broadcom_boot_interrupt.1488004.672802
Double the max symbol name length.
v2: Use 255 (Joe Perches)
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
include/linux/kallsyms.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e19..5648870 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -9,7 +9,7 @@
#include <linux/kernel.h>
#include <linux/stddef.h>
-#define KSYM_NAME_LEN 128
+#define KSYM_NAME_LEN 255
#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
--
1.8.4
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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