ab8b7f0cb3
The test_progs send_signal() is amended to test bpf_send_signal_thread() as well. $ ./test_progs -n 40 #40/1 send_signal_tracepoint:OK #40/2 send_signal_perf:OK #40/3 send_signal_nmi:OK #40/4 send_signal_tracepoint_thread:OK #40/5 send_signal_perf_thread:OK #40/6 send_signal_nmi_thread:OK #40 send_signal:OK Summary: 1/6 PASSED, 0 SKIPPED, 0 FAILED Also took this opportunity to rewrite the send_signal test using skeleton framework and array mmap to make code simpler and more readable. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200115035003.602425-1-yhs@fb.com
41 lines
770 B
C
41 lines
770 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2019 Facebook
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#include <linux/bpf.h>
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#include <linux/version.h>
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#include "bpf_helpers.h"
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__u32 sig = 0, pid = 0, status = 0, signal_thread = 0;
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static __always_inline int bpf_send_signal_test(void *ctx)
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{
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int ret;
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if (status != 0 || sig == 0 || pid == 0)
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return 0;
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if ((bpf_get_current_pid_tgid() >> 32) == pid) {
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if (signal_thread)
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ret = bpf_send_signal_thread(sig);
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else
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ret = bpf_send_signal(sig);
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if (ret == 0)
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status = 1;
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}
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return 0;
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}
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SEC("tracepoint/syscalls/sys_enter_nanosleep")
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int send_signal_tp(void *ctx)
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{
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return bpf_send_signal_test(ctx);
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}
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SEC("perf_event")
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int send_signal_perf(void *ctx)
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{
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return bpf_send_signal_test(ctx);
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}
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char __license[] SEC("license") = "GPL";
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