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| // SPDX-License-Identifier: GPL-2.0
| /* Copyright (c) 2019 Facebook */
|
| #include <test_progs.h>
|
| struct s {
| int a;
| long long b;
| } __attribute__((packed));
|
| #include "test_skeleton.skel.h"
|
| void test_skeleton(void)
| {
| int duration = 0, err;
| struct test_skeleton* skel;
| struct test_skeleton__bss *bss;
| struct test_skeleton__data *data;
| struct test_skeleton__rodata *rodata;
| struct test_skeleton__kconfig *kcfg;
|
| skel = test_skeleton__open();
| if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
| return;
|
| if (CHECK(skel->kconfig, "skel_kconfig", "kconfig is mmaped()!\n"))
| goto cleanup;
|
| bss = skel->bss;
| data = skel->data;
| rodata = skel->rodata;
|
| /* validate values are pre-initialized correctly */
| CHECK(data->in1 != -1, "in1", "got %d != exp %d\n", data->in1, -1);
| CHECK(data->out1 != -1, "out1", "got %d != exp %d\n", data->out1, -1);
| CHECK(data->in2 != -1, "in2", "got %lld != exp %lld\n", data->in2, -1LL);
| CHECK(data->out2 != -1, "out2", "got %lld != exp %lld\n", data->out2, -1LL);
|
| CHECK(bss->in3 != 0, "in3", "got %d != exp %d\n", bss->in3, 0);
| CHECK(bss->out3 != 0, "out3", "got %d != exp %d\n", bss->out3, 0);
| CHECK(bss->in4 != 0, "in4", "got %lld != exp %lld\n", bss->in4, 0LL);
| CHECK(bss->out4 != 0, "out4", "got %lld != exp %lld\n", bss->out4, 0LL);
|
| CHECK(rodata->in.in6 != 0, "in6", "got %d != exp %d\n", rodata->in.in6, 0);
| CHECK(bss->out6 != 0, "out6", "got %d != exp %d\n", bss->out6, 0);
|
| /* validate we can pre-setup global variables, even in .bss */
| data->in1 = 10;
| data->in2 = 11;
| bss->in3 = 12;
| bss->in4 = 13;
| rodata->in.in6 = 14;
|
| err = test_skeleton__load(skel);
| if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
| goto cleanup;
|
| /* validate pre-setup values are still there */
| CHECK(data->in1 != 10, "in1", "got %d != exp %d\n", data->in1, 10);
| CHECK(data->in2 != 11, "in2", "got %lld != exp %lld\n", data->in2, 11LL);
| CHECK(bss->in3 != 12, "in3", "got %d != exp %d\n", bss->in3, 12);
| CHECK(bss->in4 != 13, "in4", "got %lld != exp %lld\n", bss->in4, 13LL);
| CHECK(rodata->in.in6 != 14, "in6", "got %d != exp %d\n", rodata->in.in6, 14);
|
| /* now set new values and attach to get them into outX variables */
| data->in1 = 1;
| data->in2 = 2;
| bss->in3 = 3;
| bss->in4 = 4;
| bss->in5.a = 5;
| bss->in5.b = 6;
| kcfg = skel->kconfig;
|
| err = test_skeleton__attach(skel);
| if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
| goto cleanup;
|
| /* trigger tracepoint */
| usleep(1);
|
| CHECK(data->out1 != 1, "res1", "got %d != exp %d\n", data->out1, 1);
| CHECK(data->out2 != 2, "res2", "got %lld != exp %d\n", data->out2, 2);
| CHECK(bss->out3 != 3, "res3", "got %d != exp %d\n", (int)bss->out3, 3);
| CHECK(bss->out4 != 4, "res4", "got %lld != exp %d\n", bss->out4, 4);
| CHECK(bss->handler_out5.a != 5, "res5", "got %d != exp %d\n",
| bss->handler_out5.a, 5);
| CHECK(bss->handler_out5.b != 6, "res6", "got %lld != exp %d\n",
| bss->handler_out5.b, 6);
| CHECK(bss->out6 != 14, "res7", "got %d != exp %d\n", bss->out6, 14);
|
| CHECK(bss->bpf_syscall != kcfg->CONFIG_BPF_SYSCALL, "ext1",
| "got %d != exp %d\n", bss->bpf_syscall, kcfg->CONFIG_BPF_SYSCALL);
| CHECK(bss->kern_ver != kcfg->LINUX_KERNEL_VERSION, "ext2",
| "got %d != exp %d\n", bss->kern_ver, kcfg->LINUX_KERNEL_VERSION);
|
| cleanup:
| test_skeleton__destroy(skel);
| }
|
|
