some bug fix #11
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some bug fix #11
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now next task no record when pre task return directly, fix it. Fixes: 5df42b2 ("ebpf: offcpu: Fix offcpu pid info") Signed-off-by: Tao Chen <[email protected]>
clang -ggdb -gdwarf -O2 -Wall -fpie -Wno-unused-variable -Wno-unused-function -O2 -g -Wall -Werror -I/root/spycat/pkg/ebpf/headers/arm64 -I/root/spycat/pkg/ebpf/headers -target bpf -D__TARGET_ARCH_arm64 -c /root/spycat/pkg/ebpf/cpu/offcpu/offcpu.bpf.c -o /root/spycat/pkg/ebpf/cpu/offcpu/offcpu.bpf.o Signed-off-by: Tao Chen <[email protected]>
kernel-5.15, arm64, __sync_val_compare_and_swap automic instruction not supported, the error info: libbpf: prog 'futex_exit': relo #0: matching candidate #0 <byte_off> [10064] struct syscall_trace_exit.ret (0:2 @ offset 16) libbpf: prog 'futex_exit': relo #0: patched insn #73 (LDX/ST/STX) off 16 -> 16 libbpf: prog 'futex_exit': BPF program load failed: No error information libbpf: prog 'futex_exit': -- BEGIN PROG LOAD LOG -- Signed-off-by: Tao Chen <[email protected]>
Signed-off-by: Tao Chen <[email protected]>
Signed-off-by: Tao Chen <[email protected]>
Now kprobe optimized in x86 with ftrace, and the wakeup events seems more accurate with kprobe，so change it. Signed-off-by: Tao Chen <[email protected]>
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some bug fix and add vmilinux.h for x86 and arm64