linux/tools/testing/selftests/bpf/progs/test_static_linked1.c
Andrii Nakryiko 9e9b451593 selftests/bpf: Validate skeleton gen handles skipped fields
Adjust static_linked selftests to test a mix of global and static variables
and their handling of bpftool's skeleton generation code.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210513233643.194711-1-andrii@kernel.org
2021-05-13 17:23:57 -07:00

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C

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
/* 8-byte aligned .data */
static volatile long static_var1 = 2;
static volatile int static_var2 = 3;
int var1 = -1;
/* 4-byte aligned .rodata */
const volatile int rovar1;
/* same "subprog" name in both files */
static __noinline int subprog(int x)
{
/* but different formula */
return x * 2;
}
SEC("raw_tp/sys_enter")
int handler1(const void *ctx)
{
var1 = subprog(rovar1) + static_var1 + static_var2;
return 0;
}
char LICENSE[] SEC("license") = "GPL";
int VERSION SEC("version") = 1;