// 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 = 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);
}