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authorSteven Rostedt <srostedt@redhat.com>2011-08-10 22:00:55 -0400
committerSteven Rostedt <rostedt@goodmis.org>2012-07-19 13:19:27 -0400
commit28fb5dfa783c25dbeeb25a72663f8066a3a517f5 (patch)
tree3628de1a477cea068c2bec91c7cebc5ae0adda33
parenta1e2e31d175a1349274eba3465d17616c6725f8c (diff)
downloadop-kernel-dev-28fb5dfa783c25dbeeb25a72663f8066a3a517f5.zip
op-kernel-dev-28fb5dfa783c25dbeeb25a72663f8066a3a517f5.tar.gz
ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer
Add support of passing the current ftrace_ops into the 3rd parameter of the callback to the function tracer. Link: http://lkml.kernel.org/r/20120612225424.942411318@goodmis.org Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--arch/x86/include/asm/ftrace.h2
-rw-r--r--arch/x86/kernel/entry_32.S1
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 783b107..b3bb1f3 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -32,7 +32,7 @@
#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
#endif
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 623f288..e3e17a0 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1111,6 +1111,7 @@ 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
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