Commit eea0e9cb authored Oct 23, 2013 by Joe Mario Committed by Michal Marek Nov 06, 2013

kbuild: Increase kallsyms max symbol length



[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@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

parent 80970472

include/linux/kallsyms.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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_LONG3/10) + (MODULE_NAME_LEN - 1) + 1)

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