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kbuild: Increase kallsyms max symbol length

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[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 <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
This commit is contained in:
Joe Mario authored and Michal Marek committed 2013-11-06 22:25:42 +01:00
1 parent 8097047217
commit eea0e9cbb9
1 file changed
+1 -1
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include/linux/kallsyms.h
+1 -1
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@@ -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)