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Diffstat (limited to 'tools/lib/bpf/btf_dump.c')
-rw-r--r--tools/lib/bpf/btf_dump.c40
1 files changed, 31 insertions, 9 deletions
diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index 17db62b5002e..05f3e7dfec0a 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -77,9 +77,8 @@ struct btf_dump_data {
struct btf_dump {
const struct btf *btf;
- const struct btf_ext *btf_ext;
btf_dump_printf_fn_t printf_fn;
- struct btf_dump_opts opts;
+ void *cb_ctx;
int ptr_sz;
bool strip_mods;
bool skip_anon_defs;
@@ -138,29 +137,32 @@ static void btf_dump_printf(const struct btf_dump *d, const char *fmt, ...)
va_list args;
va_start(args, fmt);
- d->printf_fn(d->opts.ctx, fmt, args);
+ d->printf_fn(d->cb_ctx, fmt, args);
va_end(args);
}
static int btf_dump_mark_referenced(struct btf_dump *d);
static int btf_dump_resize(struct btf_dump *d);
-struct btf_dump *btf_dump__new(const struct btf *btf,
- const struct btf_ext *btf_ext,
- const struct btf_dump_opts *opts,
- btf_dump_printf_fn_t printf_fn)
+DEFAULT_VERSION(btf_dump__new_v0_6_0, btf_dump__new, LIBBPF_0.6.0)
+struct btf_dump *btf_dump__new_v0_6_0(const struct btf *btf,
+ btf_dump_printf_fn_t printf_fn,
+ void *ctx,
+ const struct btf_dump_opts *opts)
{
struct btf_dump *d;
int err;
+ if (!printf_fn)
+ return libbpf_err_ptr(-EINVAL);
+
d = calloc(1, sizeof(struct btf_dump));
if (!d)
return libbpf_err_ptr(-ENOMEM);
d->btf = btf;
- d->btf_ext = btf_ext;
d->printf_fn = printf_fn;
- d->opts.ctx = opts ? opts->ctx : NULL;
+ d->cb_ctx = ctx;
d->ptr_sz = btf__pointer_size(btf) ? : sizeof(void *);
d->type_names = hashmap__new(str_hash_fn, str_equal_fn, NULL);
@@ -186,6 +188,17 @@ err:
return libbpf_err_ptr(err);
}
+COMPAT_VERSION(btf_dump__new_deprecated, btf_dump__new, LIBBPF_0.0.4)
+struct btf_dump *btf_dump__new_deprecated(const struct btf *btf,
+ const struct btf_ext *btf_ext,
+ const struct btf_dump_opts *opts,
+ btf_dump_printf_fn_t printf_fn)
+{
+ if (!printf_fn)
+ return libbpf_err_ptr(-EINVAL);
+ return btf_dump__new_v0_6_0(btf, printf_fn, opts ? opts->ctx : NULL, opts);
+}
+
static int btf_dump_resize(struct btf_dump *d)
{
int err, last_id = btf__type_cnt(d->btf) - 1;
@@ -317,6 +330,7 @@ static int btf_dump_mark_referenced(struct btf_dump *d)
case BTF_KIND_FUNC:
case BTF_KIND_VAR:
case BTF_KIND_DECL_TAG:
+ case BTF_KIND_TYPE_TAG:
d->type_states[t->type].referenced = 1;
break;
@@ -560,6 +574,7 @@ static int btf_dump_order_type(struct btf_dump *d, __u32 id, bool through_ptr)
case BTF_KIND_VOLATILE:
case BTF_KIND_CONST:
case BTF_KIND_RESTRICT:
+ case BTF_KIND_TYPE_TAG:
return btf_dump_order_type(d, t->type, through_ptr);
case BTF_KIND_FUNC_PROTO: {
@@ -734,6 +749,7 @@ static void btf_dump_emit_type(struct btf_dump *d, __u32 id, __u32 cont_id)
case BTF_KIND_VOLATILE:
case BTF_KIND_CONST:
case BTF_KIND_RESTRICT:
+ case BTF_KIND_TYPE_TAG:
btf_dump_emit_type(d, t->type, cont_id);
break;
case BTF_KIND_ARRAY:
@@ -1154,6 +1170,7 @@ skip_mod:
case BTF_KIND_CONST:
case BTF_KIND_RESTRICT:
case BTF_KIND_FUNC_PROTO:
+ case BTF_KIND_TYPE_TAG:
id = t->type;
break;
case BTF_KIND_ARRAY:
@@ -1322,6 +1339,11 @@ static void btf_dump_emit_type_chain(struct btf_dump *d,
case BTF_KIND_RESTRICT:
btf_dump_printf(d, " restrict");
break;
+ case BTF_KIND_TYPE_TAG:
+ btf_dump_emit_mods(d, decls);
+ name = btf_name_of(d, t->name_off);
+ btf_dump_printf(d, " __attribute__((btf_type_tag(\"%s\")))", name);
+ break;
case BTF_KIND_ARRAY: {
const struct btf_array *a = btf_array(t);
const struct btf_type *next_t;