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0e2fb011a0
Availability of the gettid definition across glibc versions supported by BPF selftests is not certain. Currently, all users in the tree open-code syscall to gettid. Convert them to a common macro definition. Reviewed-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241104171959.2938862-3-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2021 Facebook */
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#include <test_progs.h>
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#include <sys/syscall.h>
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#include "linked_funcs.skel.h"
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void test_linked_funcs(void)
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{
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int err;
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struct linked_funcs *skel;
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skel = linked_funcs__open();
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if (!ASSERT_OK_PTR(skel, "skel_open"))
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return;
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/* handler1 and handler2 are marked as SEC("?raw_tp/sys_enter") and
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* are set to not autoload by default
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*/
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bpf_program__set_autoload(skel->progs.handler1, true);
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bpf_program__set_autoload(skel->progs.handler2, true);
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skel->rodata->my_tid = sys_gettid();
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skel->bss->syscall_id = SYS_getpgid;
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err = linked_funcs__load(skel);
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if (!ASSERT_OK(err, "skel_load"))
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goto cleanup;
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err = linked_funcs__attach(skel);
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if (!ASSERT_OK(err, "skel_attach"))
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goto cleanup;
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/* trigger */
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syscall(SYS_getpgid);
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ASSERT_EQ(skel->bss->output_val1, 2000 + 2000, "output_val1");
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ASSERT_EQ(skel->bss->output_ctx1, SYS_getpgid, "output_ctx1");
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ASSERT_EQ(skel->bss->output_weak1, 42, "output_weak1");
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ASSERT_EQ(skel->bss->output_val2, 2 * 1000 + 2 * (2 * 1000), "output_val2");
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ASSERT_EQ(skel->bss->output_ctx2, SYS_getpgid, "output_ctx2");
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/* output_weak2 should never be updated */
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ASSERT_EQ(skel->bss->output_weak2, 0, "output_weak2");
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cleanup:
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linked_funcs__destroy(skel);
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}
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