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sh: Add kprobe-based event tracer.

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This follows the x86/ppc changes for kprobe-based event tracing on sh.
While kprobes is only supported on 32-bit sh, we provide the API for
HAVE_REGS_AND_STACK_ACCESS_API for both 32 and 64-bit.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2010-06-14 15:16:53 +09:00
parent 9973e38575
commit eaaaeef392
9 changed files with 229 additions and 13 deletions
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3
arch/sh/include/asm/processor_32.h
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@@ -13,7 +13,6 @@
#include <linux/linkage.h>
#include <asm/page.h>
#include <asm/types.h>
#include <asm/ptrace.h>
#include <asm/hw_breakpoint.h>
/*
@@ -194,8 +193,6 @@ extern unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[15])
#define user_stack_pointer(_regs) ((_regs)->regs[15])
#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4)
#define PREFETCH_STRIDE L1_CACHE_BYTES
#define ARCH_HAS_PREFETCH