Patch 1 - fix crash function_graph tracer encounters BPF trampoline Patch 2 - use register_ftrace_direct() API to attach BPF trampoline Patch 3 - simple test Alexei Starovoitov (3): ftrace: Fix function_graph tracer interaction with BPF trampoline bpf: Make BPF trampoline use register_ftrace_direct() API selftests/bpf: test function_graph tracer and bpf trampoline together arch/x86/kernel/ftrace.c | 14 ----- include/linux/bpf.h | 1 + include/linux/ftrace.h | 5 ++ kernel/bpf/trampoline.c | 64 ++++++++++++++++++++-- kernel/trace/fgraph.c | 9 +++ kernel/trace/ftrace.c | 19 +++---- tools/testing/selftests/bpf/test_ftrace.sh | 39 +++++++++++++ 7 files changed, 119 insertions(+), 32 deletions(-) create mode 100755 tools/testing/selftests/bpf/test_ftrace.sh -- 2.23.0
