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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <test_progs.h>
#include <sys/syscall.h>
#include "linked_funcs.skel.h"
void test_linked_funcs(void)
{
int err;
struct linked_funcs *skel;
skel = linked_funcs__open();
if (!ASSERT_OK_PTR(skel, "skel_open"))
return;
/* handler1 and handler2 are marked as SEC("?raw_tp/sys_enter") and
* are set to not autoload by default
*/
bpf_program__set_autoload(skel->progs.handler1, true);
bpf_program__set_autoload(skel->progs.handler2, true);
skel->rodata->my_tid = syscall(SYS_gettid);
skel->bss->syscall_id = SYS_getpgid;
err = linked_funcs__load(skel);
if (!ASSERT_OK(err, "skel_load"))
goto cleanup;
err = linked_funcs__attach(skel);
if (!ASSERT_OK(err, "skel_attach"))
goto cleanup;
/* trigger */
syscall(SYS_getpgid);
ASSERT_EQ(skel->bss->output_val1, 2000 + 2000, "output_val1");
ASSERT_EQ(skel->bss->output_ctx1, SYS_getpgid, "output_ctx1");
ASSERT_EQ(skel->bss->output_weak1, 42, "output_weak1");
ASSERT_EQ(skel->bss->output_val2, 2 * 1000 + 2 * (2 * 1000), "output_val2");
ASSERT_EQ(skel->bss->output_ctx2, SYS_getpgid, "output_ctx2");
/* output_weak2 should never be updated */
ASSERT_EQ(skel->bss->output_weak2, 0, "output_weak2");
cleanup:
linked_funcs__destroy(skel);
}
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