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| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2017-06-29 23:19:19 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-03 23:12:01 +1000 |
| commit | 15770a13bebc7fae2fbc06bc4cc708a3f724c586 (patch) | |
| tree | 9536bd70101fcac383d887cae42bfebadb5d7142 /arch/powerpc/kernel/traps.c | |
| parent | 3639d6619c249acf3b8ecc4fd4552486f217dec0 (diff) | |
| download | linux-15770a13bebc7fae2fbc06bc4cc708a3f724c586.tar.gz | |
powerpc/64s: Blacklist functions invoked on a trap
Blacklist all functions involved while handling a trap. We:
- convert some of the symbols into private symbols, and
- blacklist most functions involved while handling a trap.
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index d4e545d27ef9ff..bfcfd9ef09f20a 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -237,6 +237,7 @@ void die(const char *str, struct pt_regs *regs, long err) err = 0; oops_end(flags, regs, err); } +NOKPROBE_SYMBOL(die); void user_single_step_siginfo(struct task_struct *tsk, struct pt_regs *regs, siginfo_t *info) @@ -1968,6 +1969,7 @@ void unrecoverable_exception(struct pt_regs *regs) regs->trap, regs->nip); die("Unrecoverable exception", regs, SIGABRT); } +NOKPROBE_SYMBOL(unrecoverable_exception); #if defined(CONFIG_BOOKE_WDT) || defined(CONFIG_40x) /* @@ -1998,6 +2000,7 @@ void kernel_bad_stack(struct pt_regs *regs) regs->gpr[1], regs->nip); die("Bad kernel stack pointer", regs, SIGABRT); } +NOKPROBE_SYMBOL(kernel_bad_stack); void __init trap_init(void) { |