From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 20 Dec 2019 17:23:34 +0000 (+0100)
Subject: backport: re PR debug/92664 (Wrong .debug_line section information when compiling... 
X-Git-Tag: releases/gcc-9.3.0~295
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92059b60e67b614a590261c13a32239549f29c61;p=thirdparty%2Fgcc.git

backport: re PR debug/92664 (Wrong .debug_line section information when compiling stdin input with -g3)

	Backported from mainline
	2019-11-27  Jakub Jelinek  <jakub@redhat.com>

	PR debug/92664
	* dwarf2out.c (lookup_filename): Use "<stdin>" instead of "".

From-SVN: r279658
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1a925cae4e5e..41b10d6c27dd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,11 @@
 2019-12-20  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
+	2019-11-27  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/92664
+	* dwarf2out.c (lookup_filename): Use "<stdin>" instead of "".
+
 	2019-11-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/92644
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index ae47387b763f..67a6bc92077d 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -27057,6 +27057,9 @@ lookup_filename (const char *file_name)
   if (!file_name)
     return NULL;
 
+  if (!file_name[0])
+    file_name = "<stdin>";
+
   dwarf_file_data **slot
     = file_table->find_slot_with_hash (file_name, htab_hash_string (file_name),
 				       INSERT);