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    Subject[RFC][PATCH 04/12] ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer
    From: Steven Rostedt <srostedt@redhat.com>

    Add support of passing the current ftrace_ops into the 3rd parameter
    of the callback to the function tracer.

    Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
    ---
    arch/x86/include/asm/ftrace.h | 3 +--
    arch/x86/kernel/entry_32.S | 1 +
    2 files changed, 2 insertions(+), 2 deletions(-)

    diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
    index 1fca3c2..aefea5b 100644
    --- a/arch/x86/include/asm/ftrace.h
    +++ b/arch/x86/include/asm/ftrace.h
    @@ -37,9 +37,8 @@
    #define MCOUNT_ADDR ((long)(mcount))
    #define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */

    -#if defined(CONFIG_DYNAMIC_FTRACE) && defined(CONFIG_X86_64)
    +#ifdef CONFIG_DYNAMIC_FTRACE
    #define ARCH_SUPPORTS_FTRACE_OPS 1
    -#define ARCH_SUPPORTS_FTRACE_SAVE_REGS 1
    #endif

    #ifndef __ASSEMBLY__
    diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
    index 01ccf9b..189c93f 100644
    --- a/arch/x86/kernel/entry_32.S
    +++ b/arch/x86/kernel/entry_32.S
    @@ -1104,6 +1104,7 @@ ENTRY(ftrace_caller)
    pushl %edx
    movl 0xc(%esp), %eax
    movl 0x4(%ebp), %edx
    + leal function_trace_op, %ecx
    subl $MCOUNT_INSN_SIZE, %eax

    .globl ftrace_call
    --
    1.7.10



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