565 	struct ksym_relo_desc *relo;  in bpf_gen__record_extern()  local
567 	relo = libbpf_reallocarray(gen->relos, gen->relo_cnt + 1, sizeof(*relo));  in bpf_gen__record_extern()
568 	if (!relo) {  in bpf_gen__record_extern()
572 	gen->relos = relo;  in bpf_gen__record_extern()
573 	relo += gen->relo_cnt;  in bpf_gen__record_extern()
574 	relo->name = name;  in bpf_gen__record_extern()
575 	relo->is_weak = is_weak;  in bpf_gen__record_extern()
576 	relo->is_typeless = is_typeless;  in bpf_gen__record_extern()
577 	relo->kind = kind;  in bpf_gen__record_extern()
578 	relo->insn_idx = insn_idx;  in bpf_gen__record_extern()
583 static struct ksym_desc *get_ksym_desc(struct bpf_gen *gen, struct ksym_relo_desc *relo)  in get_ksym_desc()  argument
589 		if (!strcmp(gen->ksyms[i].name, relo->name)) {  in get_ksym_desc()
601 	kdesc->name = relo->name;  in get_ksym_desc()
602 	kdesc->kind = relo->kind;  in get_ksym_desc()
612 static void emit_bpf_find_by_name_kind(struct bpf_gen *gen, struct ksym_relo_desc *relo)  in emit_bpf_find_by_name_kind()  argument
614 	int name_off, len = strlen(relo->name) + 1;  in emit_bpf_find_by_name_kind()
616 	name_off = add_data(gen, relo->name, len);  in emit_bpf_find_by_name_kind()
620 	emit(gen, BPF_MOV64_IMM(BPF_REG_3, relo->kind));  in emit_bpf_find_by_name_kind()
624 	debug_ret(gen, "find_by_name_kind(%s,%d)", relo->name, relo->kind);  in emit_bpf_find_by_name_kind()
631 static void emit_bpf_kallsyms_lookup_name(struct bpf_gen *gen, struct ksym_relo_desc *relo)  in emit_bpf_kallsyms_lookup_name()  argument
633 	int name_off, len = strlen(relo->name) + 1, res_off;  in emit_bpf_kallsyms_lookup_name()
635 	name_off = add_data(gen, relo->name, len);  in emit_bpf_kallsyms_lookup_name()
647 	debug_ret(gen, "kallsyms_lookup_name(%s,%d)", relo->name, relo->kind);  in emit_bpf_kallsyms_lookup_name()
660 static void emit_relo_kfunc_btf(struct bpf_gen *gen, struct ksym_relo_desc *relo, int insn)  in emit_relo_kfunc_btf()  argument
665 	kdesc = get_ksym_desc(gen, relo);  in emit_relo_kfunc_btf()
678 	emit_bpf_find_by_name_kind(gen, relo);  in emit_relo_kfunc_btf()
679 	if (!relo->is_weak)  in emit_relo_kfunc_btf()
685 			btf_fd_idx, relo->name);  in emit_relo_kfunc_btf()
723 		   relo->name, kdesc->ref);  in emit_relo_kfunc_btf()
728 		   relo->name, kdesc->ref);  in emit_relo_kfunc_btf()
731 static void emit_ksym_relo_log(struct bpf_gen *gen, struct ksym_relo_desc *relo,  in emit_ksym_relo_log()  argument
741 		   relo->is_typeless, relo->is_weak, relo->name, ref);  in emit_ksym_relo_log()
744 		   relo->is_typeless, relo->is_weak, relo->name, ref);  in emit_ksym_relo_log()
751 				    struct ksym_relo_desc *relo, int insn)  in emit_relo_ksym_typeless()  argument
755 	kdesc = get_ksym_desc(gen, relo);  in emit_relo_ksym_typeless()
770 	emit_bpf_kallsyms_lookup_name(gen, relo);  in emit_relo_ksym_typeless()
780 	emit_ksym_relo_log(gen, relo, kdesc->ref);  in emit_relo_ksym_typeless()
797 static void emit_relo_ksym_btf(struct bpf_gen *gen, struct ksym_relo_desc *relo, int insn)  in emit_relo_ksym_btf()  argument
802 	kdesc = get_ksym_desc(gen, relo);  in emit_relo_ksym_btf()
817 	emit_bpf_find_by_name_kind(gen, relo);  in emit_relo_ksym_btf()
818 	if (!relo->is_weak)  in emit_relo_ksym_btf()
842 	emit_ksym_relo_log(gen, relo, kdesc->ref);  in emit_relo_ksym_btf()
861 static void emit_relo(struct bpf_gen *gen, struct ksym_relo_desc *relo, int insns)  in emit_relo()  argument
865 	pr_debug("gen: emit_relo (%d): %s at %d\n", relo->kind, relo->name, relo->insn_idx);  in emit_relo()
866 	insn = insns + sizeof(struct bpf_insn) * relo->insn_idx;  in emit_relo()
868 	switch (relo->kind) {  in emit_relo()
870 		if (relo->is_typeless)  in emit_relo()
871 			emit_relo_ksym_typeless(gen, relo, insn);  in emit_relo()
873 			emit_relo_ksym_btf(gen, relo, insn);  in emit_relo()
876 		emit_relo_kfunc_btf(gen, relo, insn);  in emit_relo()
879 		pr_warn("Unknown relocation kind '%d'\n", relo->kind);  in emit_relo()