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s390/exceptions: switch to relative exception table entries

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This is the s390 port of 70627654 "x86, extable: Switch to relative
exception table entries".
Reduces the size of our exception tables by 50% on 64 bit builds.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2012-09-05 13:26:11 +02:00
committed by Martin Schwidefsky
parent 24996edce5
commit eb608fb366
10 changed files with 132 additions and 33 deletions
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2
arch/s390/kernel/kprobes.c
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@@ -547,7 +547,7 @@ static int __kprobes kprobe_trap_handler(struct pt_regs *regs, int trapnr)
*/
entry = search_exception_tables(regs->psw.addr & PSW_ADDR_INSN);
if (entry) {
regs->psw.addr = entry->fixup | PSW_ADDR_AMODE;
regs->psw.addr = extable_fixup(entry) | PSW_ADDR_AMODE;
return 1;
}