[PATCH 04/16] encoders: Fix diagnostic messages for unexpected tags in enumerations

[Arnaldo Carvalho de Melo <acme@kernel.org>]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Print the actual unexpected child tag's name and id instead of the
parent enumeration's, so the diagnostic message is useful for debugging.

Fixes: 5c0162ee40f06c95 ("dwarf_loader: Initial support for DW_TAG_subprogram in DW_TAG_enumeration")
Assisted-by: Claude:claude-opus-4-6-1m
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 btf_encoder.c     | 2 +-
 ctf_encoder.c     | 2 +-
 dwarves_fprintf.c | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/btf_encoder.c b/btf_encoder.c
index b6814f6a92899d07..243064695f6cf171 100644
--- a/btf_encoder.c
+++ b/btf_encoder.c
@@ -1800,7 +1800,7 @@ static int32_t btf_encoder__add_enum_type(struct btf_encoder *encoder, struct ta
 	type__for_each_enumerator(etype, pos) {
 		if (pos->tag.tag != DW_TAG_enumerator) {
 			fprintf(stderr, "Unexpected DW_TAG_%s <%llx>, skipping it...\n",
-				dwarf_tag_name(tag->tag), tag__orig_id(tag, cu));
+				dwarf_tag_name(pos->tag.tag), tag__orig_id(&pos->tag, cu));
 			continue;
 		}
 		name = enumerator__name(pos);
diff --git a/ctf_encoder.c b/ctf_encoder.c
index 1c61c76ba20e06bc..f2c63c2b039026f8 100644
--- a/ctf_encoder.c
+++ b/ctf_encoder.c
@@ -157,7 +157,7 @@ static int enumeration_type__encode(struct tag *tag, const struct cu *cu, uint32
 	type__for_each_enumerator(etype, pos) {
 		if (pos->tag.tag != DW_TAG_enumerator) {
 			fprintf(stderr, "Unexpected DW_TAG_%s <%llx>, skipping it...\n",
-				dwarf_tag_name(tag->tag), tag__orig_id(tag, cu));
+				dwarf_tag_name(pos->tag.tag), tag__orig_id(&pos->tag, cu));
 			continue;
 		}
 		ctf__add_enumerator(ctf, pos->name, pos->value, &position);
diff --git a/dwarves_fprintf.c b/dwarves_fprintf.c
index acbfbc091c9f86dc..e0887e14daa16c8c 100644
--- a/dwarves_fprintf.c
+++ b/dwarves_fprintf.c
@@ -506,8 +506,8 @@ size_t enumeration__fprintf(const struct tag *tag, const struct cu *cu,
 						   (unsigned long long)pos->value);
 			break;
 		default:
-			printed += fprintf(fp, "/* Unexpected %s <%llx> */\n", dwarf_tag_name(tag->tag),
-					   tag__orig_id(tag, cu));
+			printed += fprintf(fp, "/* Unexpected %s <%llx> */\n", dwarf_tag_name(pos->tag.tag),
+					   tag__orig_id(&pos->tag, cu));
 			continue;
 		}
 		printed += fprintf(fp, ",\n");
-- 
2.54.0