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authorIlya Leoshkevich <iii@linux.ibm.com>2021-02-26 21:22:49 +0100
committerAlexei Starovoitov <ast@kernel.org>2021-03-04 17:58:15 -0800
commit22541a9eeb0d968c133aaebd95fa59da3208e705 (patch)
tree72eafa0a782827717a18cb087359ec480bf9e83c /tools/lib/bpf/libbpf.map
parent1b1ce92b24331b569a444858fc487a1ca19dc778 (diff)
libbpf: Add BTF_KIND_FLOAT support
The logic follows that of BTF_KIND_INT most of the time. Sanitization replaces BTF_KIND_FLOATs with equally-sized empty BTF_KIND_STRUCTs on older kernels, for example, the following: [4] FLOAT 'float' size=4 becomes the following: [4] STRUCT '(anon)' size=4 vlen=0 With dwarves patch [1] and this patch, the older kernels, which were failing with the floating-point-related errors, will now start working correctly. [1] https://github.com/iii-i/dwarves/commit/btf-kind-float-v2 Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210226202256.116518-4-iii@linux.ibm.com
Diffstat (limited to 'tools/lib/bpf/libbpf.map')
-rw-r--r--tools/lib/bpf/libbpf.map5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index 1c0fd2dd233a..ec898f464ab9 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -350,3 +350,8 @@ LIBBPF_0.3.0 {
xsk_setup_xdp_prog;
xsk_socket__update_xskmap;
} LIBBPF_0.2.0;
+
+LIBBPF_0.4.0 {
+ global:
+ btf__add_float;
+} LIBBPF_0.3.0;