File dwarves-dwarf_loader-Bail-out-at-DW_TAG_importe... of Package dwarves

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File dwarves-dwarf_loader-Bail-out-at-DW_TAG_imported_unit-tags.patch of Package dwarves (Revision b203e8641be41ec2395fa9365bab074d)

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From 2ecc308518edfe059f34fd1ad69ef39ad011cab9 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 18 Sep 2020 16:56:13 -0300
Subject: [PATCH] dwarf_loader: Bail out at DW_TAG_imported_unit tags

We need to support these in a future version, for now, just bail out to
avoid segfaults afterwards.

$ pahole examples/sles/vmlinux-5.3.18-109.g8ff6392-default.debug
  WARNING: DW_TAG_partial_unit used, some types will not be considered!
           Probably this was optimized using a tool like 'dwz'
           A future version of pahole will take support this.
  $

Reported-by: Tom de Vries
Bugtracker: https://github.com/acmel/dwarves/issues/10
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 dwarf_loader.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dwarf_loader.c b/dwarf_loader.c
index 74e0227..fd058aa 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -1615,6 +1615,8 @@ static struct tag *__die__process_tag(Dwarf_Die *die, struct cu *cu,
 	struct tag *tag;
 
 	switch (dwarf_tag(die)) {
+	case DW_TAG_imported_unit:
+		return NULL; // We don't support imported units yet, so to avoid segfaults
 	case DW_TAG_array_type:
 		tag = die__create_new_array(die, cu);		break;
 	case DW_TAG_base_type:
-- 
2.28.0

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File dwarves-dwarf_loader-Bail-out-at-DW_TAG_imported_unit-tags.patch of Package dwarves (Revision b203e8641be41ec2395fa9365bab074d)

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