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From: Tom de Vries <tdevries@suse.de>
To: gdb-patches@sourceware.org
Subject: [PATCH v2 13/13] [gdb/symtab] Fix DW_TAG_inlined_subroutine entries in the cooked index
Date: Tue, 12 Dec 2023 18:32:39 +0100	[thread overview]
Message-ID: <20231212173239.16793-14-tdevries@suse.de> (raw)
In-Reply-To: <20231212173239.16793-1-tdevries@suse.de>

We get incorrect qualified names in the cooked index for
DW_TAG_inlined_subroutine DIEs with abstract origin, due to the fact that the
DIE parent is used instead of the abstract origin.

Fix this by preferring the abstract origin parent, if available.

Tested on x86_64-linux.

PR symtab/30728
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30728
---
 gdb/dwarf2/read.c | 67 ++++++++++++++++++++++-------------------------
 1 file changed, 32 insertions(+), 35 deletions(-)

diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index 652bcda3704..7537cb6b7f2 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -16224,52 +16224,49 @@ cooked_indexer::scan_attributes (dwarf2_per_cu_data *scanning_per_cu,
 	  const gdb_byte *new_info_ptr = (new_reader->buffer
 					  + to_underlying (origin_offset));
 
-	  if (*parent_entry == nullptr)
+	  gdb_assert (reader->cu->per_cu->is_debug_types
+		      == new_reader->cu->per_cu->is_debug_types);
+	  CORE_ADDR addr
+	    = parent_map::form_addr (origin_offset, origin_is_dwz,
+				     reader->cu->per_cu->is_debug_types);
+	  if (new_reader->cu == reader->cu)
 	    {
-	      gdb_assert (reader->cu->per_cu->is_debug_types
-			  == new_reader->cu->per_cu->is_debug_types);
-	      CORE_ADDR addr
-		= parent_map::form_addr (origin_offset, origin_is_dwz,
-					 reader->cu->per_cu->is_debug_types);
-	      if (new_reader->cu == reader->cu)
+	      /* Intra-CU case.  */
+	      if (new_info_ptr > watermark_ptr)
 		{
-		  /* Intra-CU case.  */
-		  if (new_info_ptr > watermark_ptr)
-		    {
-		      /* Defer because origin is not read yet.  */
-		      *maybe_defer = addr;
-		    }
-		  else
-		    {
-		      auto tmp = find_parent (addr);
-		      if (tmp == &parent_map::deferred)
-			{
-			  /* Defer because origin is deferred.  */
-			  *maybe_defer = addr;
-			}
-		      else
-			*parent_entry = tmp;
-		    }
+		  /* Defer because origin is not read yet.  */
+		  *maybe_defer = addr;
 		}
 	      else
 		{
-		  /* Inter-CU case.  */
-		  if (parent_valid (addr))
+		  auto tmp = find_parent (addr);
+		  if (tmp == &parent_map::deferred)
 		    {
-		      auto tmp = find_parent (addr);
-		      if (tmp == &parent_map::deferred)
-			{
-			  /* Defer because origin is deferred.  */
-			  *maybe_defer = addr;
-			}
-		      else
-			*parent_entry = tmp;
+		      /* Defer because origin is deferred.  */
+		      *maybe_defer = addr;
 		    }
 		  else
+		    *parent_entry = tmp;
+		}
+	    }
+	  else
+	    {
+	      /* Inter-CU case.  */
+	      if (parent_valid (addr))
+		{
+		  auto tmp = find_parent (addr);
+		  if (tmp == &parent_map::deferred)
 		    {
-		      /* Defer because origin is in other shard.  */
+		      /* Defer because origin is deferred.  */
 		      *maybe_defer = addr;
 		    }
+		  else
+		    *parent_entry = tmp;
+		}
+	      else
+		{
+		  /* Defer because origin is in other shard.  */
+		  *maybe_defer = addr;
 		}
 	    }
 
-- 
2.35.3


  parent reply	other threads:[~2023-12-12 17:32 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-12 17:32 [PATCH v2 00/13] [gdb/symtab, cc-with-dwz] Fix gdb.cp/breakpoint-locs.exp Tom de Vries
2023-12-12 17:32 ` [PATCH v2 01/13] [gdb/symtab] Refactor condition in scan_attributes Tom de Vries
2023-12-12 18:28   ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 02/13] [gdb/symtab] Factor out m_die_range_map usage Tom de Vries
2023-12-12 18:31   ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 03/13] [gdb/symtab] Handle nullptr parent in parent_map::set_parent Tom de Vries
2023-12-12 18:34   ` Tom Tromey
2023-12-13  8:25     ` Tom de Vries
2023-12-13 20:11       ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 04/13] [gdb/symtab] Factor out m_deferred_entries usage Tom de Vries
2023-12-12 18:39   ` Tom Tromey
2023-12-13  8:46     ` Tom de Vries
2023-12-13 20:16       ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 05/13] [gdb/symtab] Resolve deferred entries, inter-shard case Tom de Vries
2023-12-12 19:27   ` Tom Tromey
2023-12-13 10:35     ` Tom de Vries
2023-12-13 20:19       ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 06/13] [gdb/testsuite] Add gdb.dwarf2/forward-spec-inter-cu.exp Tom de Vries
2023-12-12 19:28   ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 07/13] [gdb/testsuite] Add gdb.dwarf2/backward-spec-inter-cu.exp Tom de Vries
2023-12-12 19:29   ` Tom Tromey
2023-12-12 17:32 ` [PATCH v2 08/13] [gdb/symtab] Keep track of processed DIEs in shard Tom de Vries
2023-12-12 17:32 ` [PATCH v2 09/13] [gdb/symtab] Resolve deferred entries, intra-shard case Tom de Vries
2023-12-12 17:32 ` [PATCH v2 10/13] [gdb/symtab] Don't defer backward refs, inter-cu " Tom de Vries
2023-12-12 17:32 ` [PATCH v2 11/13] [gdb/symtab] Recurse into c++ DW_TAG_subprogram DIEs for cooked index Tom de Vries
2023-12-12 17:32 ` [PATCH v2 12/13] [gdb/symtab] Keep track of all parents " Tom de Vries
2023-12-12 17:32 ` Tom de Vries [this message]
2023-12-12 19:05 ` [PATCH v2 00/13] [gdb/symtab, cc-with-dwz] Fix gdb.cp/breakpoint-locs.exp Tom Tromey
2023-12-13  9:58   ` Tom de Vries
2023-12-13 20:14     ` Tom Tromey

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