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The selftests build four kernel modules which use copy-pasted Makefile targets. This is a bit messy, and doesn't scale so well when we add more modules, so let's consolidate these rules into a single rule generated for each module name, and move the module sources into a single directory. To avoid parallel builds of the different modules stepping on each other's toes during the 'modpost' phase of the Kbuild 'make modules', the module files should really be a grouped target. However, make only added explicit support for grouped targets in version 4.3, which is newer than the minimum version supported by the kernel. However, make implicitly treats pattern matching rules with multiple targets as a grouped target, so we can work around this by turning the rule into a pattern matching target. We do this by replacing '.ko' with '%ko' in the targets with subst(). Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Viktor Malik <vmalik@redhat.com> Link: https://lore.kernel.org/bpf/20241204-bpf-selftests-mod-compile-v5-1-b96231134a49@redhat.com
114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2020 Facebook */
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#ifndef _BPF_TESTMOD_H
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#define _BPF_TESTMOD_H
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#include <linux/types.h>
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struct task_struct;
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struct bpf_testmod_test_read_ctx {
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char *buf;
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loff_t off;
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size_t len;
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};
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struct bpf_testmod_test_write_ctx {
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char *buf;
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loff_t off;
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size_t len;
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};
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struct bpf_testmod_test_writable_ctx {
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bool early_ret;
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int val;
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};
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/* BPF iter that returns *value* *n* times in a row */
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struct bpf_iter_testmod_seq {
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s64 value;
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int cnt;
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};
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struct bpf_testmod_ops {
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int (*test_1)(void);
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void (*test_2)(int a, int b);
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/* Used to test nullable arguments. */
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int (*test_maybe_null)(int dummy, struct task_struct *task);
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int (*unsupported_ops)(void);
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/* The following fields are used to test shadow copies. */
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char onebyte;
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struct {
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int a;
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int b;
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} unsupported;
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int data;
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/* The following pointers are used to test the maps having multiple
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* pages of trampolines.
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*/
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int (*tramp_1)(int value);
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int (*tramp_2)(int value);
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int (*tramp_3)(int value);
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int (*tramp_4)(int value);
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int (*tramp_5)(int value);
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int (*tramp_6)(int value);
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int (*tramp_7)(int value);
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int (*tramp_8)(int value);
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int (*tramp_9)(int value);
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int (*tramp_10)(int value);
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int (*tramp_11)(int value);
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int (*tramp_12)(int value);
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int (*tramp_13)(int value);
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int (*tramp_14)(int value);
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int (*tramp_15)(int value);
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int (*tramp_16)(int value);
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int (*tramp_17)(int value);
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int (*tramp_18)(int value);
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int (*tramp_19)(int value);
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int (*tramp_20)(int value);
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int (*tramp_21)(int value);
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int (*tramp_22)(int value);
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int (*tramp_23)(int value);
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int (*tramp_24)(int value);
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int (*tramp_25)(int value);
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int (*tramp_26)(int value);
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int (*tramp_27)(int value);
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int (*tramp_28)(int value);
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int (*tramp_29)(int value);
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int (*tramp_30)(int value);
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int (*tramp_31)(int value);
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int (*tramp_32)(int value);
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int (*tramp_33)(int value);
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int (*tramp_34)(int value);
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int (*tramp_35)(int value);
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int (*tramp_36)(int value);
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int (*tramp_37)(int value);
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int (*tramp_38)(int value);
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int (*tramp_39)(int value);
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int (*tramp_40)(int value);
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};
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struct bpf_testmod_ops2 {
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int (*test_1)(void);
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};
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struct bpf_testmod_ops3 {
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int (*test_1)(void);
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int (*test_2)(void);
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};
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struct st_ops_args {
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u64 a;
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};
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struct bpf_testmod_st_ops {
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int (*test_prologue)(struct st_ops_args *args);
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int (*test_epilogue)(struct st_ops_args *args);
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int (*test_pro_epilogue)(struct st_ops_args *args);
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struct module *owner;
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};
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#endif /* _BPF_TESTMOD_H */
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