aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/trace/Kconfig
diff options
context:
space:
mode:
authorSami Tolvanen <samitolvanen@google.com>2020-12-11 10:46:18 -0800
committerKees Cook <keescook@chromium.org>2021-01-08 15:59:02 -0800
commit3b15cdc15956673ba1551d79bceae471436ac6a9 (patch)
tree5dc22bbb44d06225d4014bf7dadb1e3cfd5ec678 /kernel/trace/Kconfig
parentLinux 5.11-rc2 (diff)
downloadlinux-dev-3b15cdc15956673ba1551d79bceae471436ac6a9.tar.xz
linux-dev-3b15cdc15956673ba1551d79bceae471436ac6a9.zip
tracing: move function tracer options to Kconfig
Move function tracer options to Kconfig to make it easier to add new methods for generating __mcount_loc, and to make the options available also when building kernel modules. Note that FTRACE_MCOUNT_USE_* options are updated on rebuild and therefore, work even if the .config was generated in a different environment. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20201211184633.3213045-2-samitolvanen@google.com
Diffstat (limited to 'kernel/trace/Kconfig')
-rw-r--r--kernel/trace/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index d5a19413d4f8..3985a31a49b7 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -602,6 +602,22 @@ config FTRACE_MCOUNT_RECORD
depends on DYNAMIC_FTRACE
depends on HAVE_FTRACE_MCOUNT_RECORD
+config FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
+ bool
+ depends on FTRACE_MCOUNT_RECORD
+
+config FTRACE_MCOUNT_USE_CC
+ def_bool y
+ depends on $(cc-option,-mrecord-mcount)
+ depends on !FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
+ depends on FTRACE_MCOUNT_RECORD
+
+config FTRACE_MCOUNT_USE_RECORDMCOUNT
+ def_bool y
+ depends on !FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
+ depends on !FTRACE_MCOUNT_USE_CC
+ depends on FTRACE_MCOUNT_RECORD
+
config TRACING_MAP
bool
depends on ARCH_HAVE_NMI_SAFE_CMPXCHG