diff options
Diffstat (limited to 'Documentation/trace/ftrace-design.rst')
| -rw-r--r-- | Documentation/trace/ftrace-design.rst | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/Documentation/trace/ftrace-design.rst b/Documentation/trace/ftrace-design.rst index dc82d64b3a44..8f4fab3f9324 100644 --- a/Documentation/trace/ftrace-design.rst +++ b/Documentation/trace/ftrace-design.rst @@ -238,19 +238,15 @@ You need very few things to get the syscalls tracing in an arch. - Tag this arch as HAVE_SYSCALL_TRACEPOINTS. -HAVE_FTRACE_MCOUNT_RECORD -------------------------- +HAVE_DYNAMIC_FTRACE +------------------- See scripts/recordmcount.pl for more info. Just fill in the arch-specific details for how to locate the addresses of mcount call sites via objdump. This option doesn't make much sense without also implementing dynamic ftrace. - -HAVE_DYNAMIC_FTRACE -------------------- - -You will first need HAVE_FTRACE_MCOUNT_RECORD and HAVE_FUNCTION_TRACER, so -scroll your reader back up if you got over eager. +You will first need HAVE_FUNCTION_TRACER, so scroll your reader back up if you +got over eager. Once those are out of the way, you will need to implement: - asm/ftrace.h: |