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authorJiri Olsa <jolsa@kernel.org>2020-07-11 23:53:24 +0200
committerAlexei Starovoitov <ast@kernel.org>2020-07-13 10:42:02 -0700
commitc9a0f3b85e09dd16665b639cb884490410619434 (patch)
treed0f83e40d55fa26ed0b96aee69fcb66fc521be3f /scripts/link-vmlinux.sh
parent5a2798ab32ba2952cfe25701ee460bccbd434c75 (diff)
bpf: Resolve BTF IDs in vmlinux image
Using BTF_ID_LIST macro to define lists for several helpers using BTF arguments. And running resolve_btfids on vmlinux elf object during linking, so the .BTF_ids section gets the IDs resolved. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200711215329.41165-5-jolsa@kernel.org
Diffstat (limited to 'scripts/link-vmlinux.sh')
-rwxr-xr-xscripts/link-vmlinux.sh6
1 files changed, 6 insertions, 0 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 92dd745906f4..e26f02dbedee 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -336,6 +336,12 @@ fi
vmlinux_link vmlinux "${kallsymso}" ${btf_vmlinux_bin_o}
+# fill in BTF IDs
+if [ -n "${CONFIG_DEBUG_INFO_BTF}" ]; then
+info BTFIDS vmlinux
+${RESOLVE_BTFIDS} vmlinux
+fi
+
if [ -n "${CONFIG_BUILDTIME_TABLE_SORT}" ]; then
info SORTTAB vmlinux
if ! sorttable vmlinux; then