Hi, Here is the 6th version of series to improve the BTF support on probe events. The previous series is here: https://lore.kernel.org/all/169137686814.271367.11218568219311636206.stgit@devnote2/ This version is adding Steve's Ack and allocate the struct btf_anon_stack from heap. This series can be applied on top of "probes/core" branch of https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git/ You can also get this series from: git://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git topic/fprobe-event-ext Thank you, --- Masami Hiramatsu (Google) (9): tracing/probes: Support BTF argument on module functions tracing/probes: Move finding func-proto API and getting func-param API to trace_btf tracing/probes: Add a function to search a member of a struct/union tracing/probes: Support BTF based data structure field access tracing/probes: Support BTF field access from $retval tracing/probes: Add string type check with BTF tracing/fprobe-event: Assume fprobe is a return event by $retval selftests/ftrace: Add BTF fields access testcases Documentation: tracing: Update fprobe event example with BTF field Documentation/trace/fprobetrace.rst | 64 ++- include/linux/btf.h | 1 kernel/bpf/btf.c | 2 kernel/trace/Makefile | 1 kernel/trace/trace.c | 3 kernel/trace/trace_btf.c | 122 +++++ kernel/trace/trace_btf.h | 11 kernel/trace/trace_eprobe.c | 4 kernel/trace/trace_fprobe.c | 59 ++ kernel/trace/trace_kprobe.c | 1 kernel/trace/trace_probe.c | 499 +++++++++++++++----- kernel/trace/trace_probe.h | 27 + kernel/trace/trace_uprobe.c | 1 .../ftrace/test.d/dynevent/add_remove_btfarg.tc | 20 + .../ftrace/test.d/dynevent/fprobe_syntax_errors.tc | 10 15 files changed, 650 insertions(+), 175 deletions(-) create mode 100644 kernel/trace/trace_btf.c create mode 100644 kernel/trace/trace_btf.h -- Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
