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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2007-04-27 16:01:42 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-04-27 16:01:42 +0200 |
| commit | c0007f1a65762eaf55633d403b380130ec60adad (patch) | |
| tree | 877ad01344b48a11b293c879b2161a4865b897e5 /arch/s390/kernel/traps.c | |
| parent | bb11e3bdbac08f773a89f3ca287024a956ee8a12 (diff) | |
| download | kernel-crypto-c0007f1a65762eaf55633d403b380130ec60adad.tar.gz kernel-crypto-c0007f1a65762eaf55633d403b380130ec60adad.tar.xz kernel-crypto-c0007f1a65762eaf55633d403b380130ec60adad.zip | |
[S390] Use generic bug.
Generic bug implementation for s390. Will increase the value of the
console output on BUG() statements since registers r0-r5,r14 will
not be clobbered by a printk() call that was previously done before
the illegal instruction of BUG() was hit.
Also implements an architecture specific WARN_ON(). Output of that
could be increased but requires common code change.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/traps.c')
| -rw-r--r-- | arch/s390/kernel/traps.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index a6540940190..49dec830373 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -30,7 +30,7 @@ #include <linux/kallsyms.h> #include <linux/reboot.h> #include <linux/kprobes.h> - +#include <linux/bug.h> #include <asm/system.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -297,6 +297,11 @@ report_user_fault(long interruption_code, struct pt_regs *regs) #endif } +int is_valid_bugaddr(unsigned long addr) +{ + return 1; +} + static void __kprobes inline do_trap(long interruption_code, int signr, char *str, struct pt_regs *regs, siginfo_t *info) @@ -323,8 +328,14 @@ static void __kprobes inline do_trap(long interruption_code, int signr, fixup = search_exception_tables(regs->psw.addr & PSW_ADDR_INSN); if (fixup) regs->psw.addr = fixup->fixup | PSW_ADDR_AMODE; - else - die(str, regs, interruption_code); + else { + enum bug_trap_type btt; + + btt = report_bug(regs->psw.addr & PSW_ADDR_INSN); + if (btt == BUG_TRAP_TYPE_WARN) + return; + die(str, regs, interruption_code); + } } } |