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btf_encoder: Adopt btf__encode_func_proto() as btf_encoder__add_func_proto() 

As it is just prep work to call libbpf's btf__add_func_proto() for a
function prototype using pahole's data structures populated from another
format, normally DWARF.

So that we can eventually ditch the btf_encoder__verbose and
btf_gen_float globals, making them members of 'struct btf_encoder'.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2021-06-09 09:31:26 -03:00
parent 4eb4c03578
commit 393febe592
3 changed files with 5 additions and 4 deletions
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4
btf_encoder.c
View File

@ -261,7 +261,7 @@ static int btf_encoder__encode_tag(struct btf_encoder *encoder, struct cu *cu, s
case DW_TAG_enumeration_type:
return btf__encode_enumeration_type(btf, cu, tag);
case DW_TAG_subroutine_type:
return btf__encode_func_proto(btf, cu, tag__ftype(tag), type_id_off);
return btf_encoder__add_func_proto(encoder, cu, tag__ftype(tag), type_id_off);
default:
fprintf(stderr, "Unsupported DW_TAG_%s(0x%x)\n",
dwarf_tag_name(tag->tag), tag->tag);
@ -743,7 +743,7 @@ int btf_encoder__encode_cu(struct btf_encoder *encoder, struct cu *cu, bool skip
continue;
}
btf_fnproto_id = btf__encode_func_proto(encoder->btf, cu, &fn->proto, type_id_off);
btf_fnproto_id = btf_encoder__add_func_proto(encoder, cu, &fn->proto, type_id_off);
name = dwarves__active_loader->strings__ptr(cu, fn->name);
btf_fn_id = btf_encoder__add_ref_type(encoder, BTF_KIND_FUNC, btf_fnproto_id, name, false);
if (btf_fnproto_id < 0 || btf_fn_id < 0) {

3
libbtf.c
View File

@ -469,8 +469,9 @@ static int32_t btf__encode_func_proto_param(struct btf *btf, const char *name,
extern struct debug_fmt_ops *dwarves__active_loader;
int32_t btf__encode_func_proto(struct btf *btf, struct cu *cu, struct ftype *ftype, uint32_t type_id_off)
int32_t btf_encoder__add_func_proto(struct btf_encoder *encoder, struct cu *cu, struct ftype *ftype, uint32_t type_id_off)
{
struct btf *btf = encoder->btf;
const struct btf_type *t;
struct parameter *param;
uint16_t nr_params, param_idx;

2
libbtf.h
View File

@ -29,7 +29,7 @@ int32_t btf_encoder__add_struct(struct btf_encoder *encoder, uint8_t kind, const
int32_t btf_encoder__add_array(struct btf_encoder *encoder, uint32_t type, uint32_t index_type, uint32_t nelems);
int32_t btf__encode_enum(struct btf *btf, const char *name, uint32_t size);
int btf__encode_enum_val(struct btf *btf, const char *name, int32_t value);
int32_t btf__encode_func_proto(struct btf *btf, struct cu *cu, struct ftype *ftype, uint32_t type_id_off);
int32_t btf_encoder__add_func_proto(struct btf_encoder *encoder, struct cu *cu, struct ftype *ftype, uint32_t type_id_off);
int32_t btf__encode_var_type(struct btf *btf, uint32_t type, const char *name, uint32_t linkage);
int32_t btf__encode_var_secinfo(struct gobuffer *buf, uint32_t type, uint32_t offset, uint32_t size);
int32_t btf__encode_datasec_type(struct btf *btf, const char *section_name, struct gobuffer *var_secinfo_buf);