Messages in this thread Patch in this message | | | Date | Thu, 19 Mar 2009 17:10:16 -0400 | From | Masami Hiramatsu <> | Subject | [RFC][PATCH -tip 3/9] ia64: add kernel_trap_sp() |
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Add kernel_trap_sp() on ia64, based on systemtap's runtime/regs.h.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Tony Luck <tony.luck@intel.com> --- arch/ia64/include/asm/ptrace.h | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h index 14055c6..3a7dfcb 100644 --- a/arch/ia64/include/asm/ptrace.h +++ b/arch/ia64/include/asm/ptrace.h @@ -246,6 +246,12 @@ static inline unsigned long user_stack_pointer(struct pt_regs *regs) return regs->ar_bspstore; }
+static inline unsigned long kernel_trap_sp(struct pt_regs *regs) +{ + /* interrupted task's memory stack pointer is r12 */ + return regs->r12; +} + #define regs_return_value(regs) ((regs)->r8)
/* Conserve space in histogram by encoding slot bits in address -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America) Inc. Software Solutions Division
e-mail: mhiramat@redhat.com
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