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authorSong Shuai <suagrfillet@gmail.com>2023-01-30 11:59:54 +0300
committerSteven Rostedt (Google) <rostedt@goodmis.org>2023-02-07 20:44:39 +0300
commit01678fbce3dd2e3042077cf71b68157e733614a0 (patch)
tree2858675dc8038423237158bfac5701026eab37cf /samples/ftrace/ftrace-direct-multi.c
parenta9c4bdd505630469f93f5efedfc7a9ca254996c8 (diff)
downloadlinux-01678fbce3dd2e3042077cf71b68157e733614a0.tar.xz
samples: ftrace: Include the nospec-branch.h only for x86
When other architectures without the nospec functionality write their direct-call functions of samples/ftrace/*.c, the including of asm/nospec-branch.h must be taken care to fix the no header file found error in building process. This commit (ee3e2469b346 "x86/ftrace: Make it call depth tracking aware") file-globally includes asm/nospec-branch.h providing CALL_DEPTH_ACCOUNT for only x86 direct-call functions. It seems better to move the including to `#ifdef CONFIG_X86_64`. Link: https://lore.kernel.org/linux-trace-kernel/20230130085954.647845-1-suagrfillet@gmail.com Signed-off-by: Song Shuai <suagrfillet@gmail.com> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'samples/ftrace/ftrace-direct-multi.c')
-rw-r--r--samples/ftrace/ftrace-direct-multi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/ftrace/ftrace-direct-multi.c b/samples/ftrace/ftrace-direct-multi.c
index d955a2650605..c27cf130c319 100644
--- a/samples/ftrace/ftrace-direct-multi.c
+++ b/samples/ftrace/ftrace-direct-multi.c
@@ -5,7 +5,6 @@
#include <linux/ftrace.h>
#include <linux/sched/stat.h>
#include <asm/asm-offsets.h>
-#include <asm/nospec-branch.h>
extern void my_direct_func(unsigned long ip);
@@ -19,6 +18,7 @@ extern void my_tramp(void *);
#ifdef CONFIG_X86_64
#include <asm/ibt.h>
+#include <asm/nospec-branch.h>
asm (
" .pushsection .text, \"ax\", @progbits\n"