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tools/bpf: Sync btf_ids.h to tools

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Sync kernel header btf_ids.h to tools directory.
Also define macro CONFIG_DEBUG_INFO_BTF before
including btf_ids.h in prog_tests/resolve_btfids.c
since non-stub definitions for BTF_ID_LIST etc. macros
are defined under CONFIG_DEBUG_INFO_BTF. This
prevented test_progs from failing.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200720163359.1393079-1-yhs@fb.com
This commit is contained in:
Yonghong Song 2020-07-20 09:33:59 -07:00 committed by Alexei Starovoitov
parent bc4f0548f6
commit d8dfe5bfe8
2 changed files with 11 additions and 1 deletions
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11
tools/include/linux/btf_ids.h
View File

@ -3,6 +3,8 @@
#ifndef _LINUX_BTF_IDS_H
#define _LINUX_BTF_IDS_H
#ifdef CONFIG_DEBUG_INFO_BTF
#include <linux/compiler.h> /* for __PASTE */
/*
@ -21,7 +23,7 @@
asm( \
".pushsection " BTF_IDS_SECTION ",\"a\"; \n" \
".local " #symbol " ; \n" \
".type " #symbol ", @object; \n" \
".type " #symbol ", STT_OBJECT; \n" \
".size " #symbol ", 4; \n" \
#symbol ": \n" \
".zero 4 \n" \
@ -83,5 +85,12 @@ asm( \
".zero 4 \n" \
".popsection; \n");
#else
#define BTF_ID_LIST(name) static u32 name[5];
#define BTF_ID(prefix, name)
#define BTF_ID_UNUSED
#endif /* CONFIG_DEBUG_INFO_BTF */
#endif

1
tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
View File

@ -6,6 +6,7 @@
#include <bpf/libbpf.h>
#include <linux/btf.h>
#include <linux/kernel.h>
#define CONFIG_DEBUG_INFO_BTF
#include <linux/btf_ids.h>
#include "test_progs.h"