Commit 737e0f91 authored by Ilya Leoshkevich's avatar Ilya Leoshkevich Committed by Alexei Starovoitov
Browse files

tools/bpftool: Add BTF_KIND_FLOAT support 



Only dumping support needs to be adjusted, the code structure follows
that of BTF_KIND_INT. Example plain and JSON outputs:

    [4] FLOAT 'float' size=4
    {"id":4,"kind":"FLOAT","name":"float","size":4}

Signed-off-by: default avatarIlya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarYonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210226202256.116518-5-iii@linux.ibm.com
parent 22541a9e

tools/bpf/bpftool/btf.c

+8 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ static const char * const btf_kind_str[NR_BTF_KINDS] = { 
	[BTF_KIND_FUNC_PROTO]	= "FUNC_PROTO",

	[BTF_KIND_VAR]		= "VAR",

	[BTF_KIND_DATASEC]	= "DATASEC",

	[BTF_KIND_FLOAT]	= "FLOAT",

};



struct btf_attach_table {
@@ -327,6 +328,13 @@ static int dump_btf_type(const struct btf *btf, __u32 id, 
			jsonw_end_array(w);

		break;

	}

	case BTF_KIND_FLOAT: {

		if (json_output)

			jsonw_uint_field(w, "size", t->size);

		else

			printf(" size=%u", t->size);

		break;

	}

	default:

		break;

	}

tools/bpf/bpftool/btf_dumper.c

+1 −0
Original line number Diff line number Diff line
@@ -596,6 +596,7 @@ static int __btf_dumper_type_only(const struct btf *btf, __u32 type_id, 
	switch (BTF_INFO_KIND(t->info)) {

	case BTF_KIND_INT:

	case BTF_KIND_TYPEDEF:

	case BTF_KIND_FLOAT:

		BTF_PRINT_ARG("%s ", btf__name_by_offset(btf, t->name_off));

		break;

	case BTF_KIND_STRUCT: