Messages in this thread Patch in this message | | | From | Oskar Andero <> | Subject | [PATCH v3 3/4] kprobes: move x86-specific blacklist symbols to arch directory | Date | Fri, 5 Apr 2013 15:26:39 +0200 |
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From: Björn Davidsson <bjorn.davidsson@sonymobile.com>
The common kprobes blacklist contains x86-specific symbols. Looking for these in kallsyms takes unnecessary time during startup on non-X86 platform. The symbols where moved to arch/x86/kernel/kprobes/core.c.
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David S. Miller <davem@davemloft.net> Cc: linux-arch@vger.kernel.org Reviewed-by: Radovan Lekanovic <radovan.lekanovic@sonymobile.com> Signed-off-by: Björn Davidsson <bjorn.davidsson@sonymobile.com> Signed-off-by: Oskar Andero <oskar.andero@sonymobile.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> --- arch/x86/kernel/kprobes/core.c | 7 +++++++ kernel/kprobes.c | 3 --- 2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c index 7bfe318..41ce6c1 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -65,6 +65,13 @@ void jprobe_return_end(void); DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); +const char * const arch_kprobes_blacksyms[] = { + "native_get_debugreg", + "irq_entries_start", + "common_interrupt", +}; +const size_t arch_kprobes_blacksyms_size = ARRAY_SIZE(arch_kprobes_blacksyms); + #define stack_addr(regs) ((unsigned long *)kernel_stack_pointer(regs)) #define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\ diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 2458ae1..b289384 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -95,9 +95,6 @@ static raw_spinlock_t *kretprobe_table_lock_ptr(unsigned long hash) */ static const char * const common_kprobes_blacksyms[] = { "preempt_schedule", - "native_get_debugreg", - "irq_entries_start", - "common_interrupt", "mcount", /* mcount can be called from everywhere */ }; static const size_t common_kprobes_blacksyms_size = -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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