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[MIPS] Fix data bus error recovery

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With -ffunction-section the entries in __dbe_table aren't no longer
sorted, so the lookup of exception addresses in do_be() failed for
some addresses. To avoid this we now sort __dbe_table.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Thomas Bogendoerfer 2008-08-04 19:44:34 +02:00 committed by Ralf Baechle
parent b380b0d4f7
commit 0510617b85
1 changed files with 4 additions and 2 deletions
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6
arch/mips/kernel/traps.c
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@ -373,8 +373,8 @@ void __noreturn die(const char * str, const struct pt_regs * regs)
do_exit(SIGSEGV);
}
extern const struct exception_table_entry __start___dbe_table[];
extern const struct exception_table_entry __stop___dbe_table[];
extern struct exception_table_entry __start___dbe_table[];
extern struct exception_table_entry __stop___dbe_table[];
__asm__(
" .section __dbe_table, \"a\"\n"
@ -1682,4 +1682,6 @@ void __init trap_init(void)
flush_icache_range(ebase, ebase + 0x400);
flush_tlb_handlers();
sort_extable(__start___dbe_table, __stop___dbe_table);
}