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btf_loader: Skip BTF_KIND_DATASEC entries 

Just skip them, we have no use for them so far, skipping them will allow
us to process the other kinds we have use for.

Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-10-24 21:02:33 -03:00
parent 96235a74a3
commit 910e060b5c
1 changed files with 18 additions and 0 deletions
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18
btf_loader.c
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@ -366,6 +366,21 @@ static int create_new_variable(struct btf_elf *btfe, void *ptr, struct btf_type
return sizeof(*bvar);
}
static int create_new_datasec(struct btf_elf *btfe, void *ptr, int vlen,
struct btf_type *tp, uint64_t size, uint32_t id,
bool kflag)
{
//strings_t name = btf_elf__get32(btfe, &tp->name_off);
//cu__add_tag_with_id(btfe->priv, &datasec->tag, id);
/*
* FIXME: this will not be used to reconstruct some original C code,
* its about runtime placement of variables so just ignore this for now
*/
return vlen * sizeof(struct btf_var_secinfo);
}
static int create_new_tag(struct btf_elf *btfe, int type, struct btf_type *tp, uint32_t id)
{
unsigned int type_id = btf_elf__get32(btfe, &tp->type);
@ -447,6 +462,9 @@ static int btf_elf__load_types(struct btf_elf *btfe)
case BTF_KIND_VAR:
vlen = create_new_variable(btfe, ptr, type_ptr, size, type_index);
break;
case BTF_KIND_DATASEC:
vlen = create_new_datasec(btfe, ptr, vlen, type_ptr, size, type_index, kflag);
break;
case BTF_KIND_VOLATILE:
case BTF_KIND_PTR:
case BTF_KIND_CONST: