File gdb-symtab-refactor-condition-in-scan_attribute... of Package gdb

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File gdb-symtab-refactor-condition-in-scan_attributes.patch of Package gdb (Revision 25be0d849211794216ee6b3a1df5f7ed)

Currently displaying revision 25be0d849211794216ee6b3a1df5f7ed , Show latest

From 0bba1c5bdbcb404327ba4d5f35254b96d2e48108 Mon Sep 17 00:00:00 2001
From: Tom de Vries <tdevries@suse.de>
Date: Mon, 11 Dec 2023 15:41:26 +0100
Subject: [PATCH 01/11] [gdb/symtab] Refactor condition in scan_attributes

In scan_attributes there's code:
...
	  if (new_reader->cu == reader->cu
	      && new_info_ptr > watermark_ptr
	      && *parent_entry == nullptr)
	    ...
	  else if (*parent_entry == nullptr)
	    ...
...
that uses the "*parent_entry == nullptr" condition twice.

Make this somewhat more readable by factoring out the condition:
...
	  if (*parent_entry == nullptr)
	    {
	      if (new_reader->cu == reader->cu
		  && new_info_ptr > watermark_ptr)
		...
	      else
		...
	    }
...

This also allows us to factor out "form_addr (origin_offset, origin_is_dwz)".

Tested on x86_64-linux.
---
 gdb/dwarf2/read.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index 2339cceb829..00471d20d41 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -18315,15 +18315,17 @@ 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 (new_reader->cu == reader->cu
-	      && new_info_ptr > watermark_ptr
-	      && *parent_entry == nullptr)
-	    *maybe_defer = form_addr (origin_offset, origin_is_dwz);
-	  else if (*parent_entry == nullptr)
+	  if (*parent_entry == nullptr)
 	    {
-	      CORE_ADDR lookup = form_addr (origin_offset, origin_is_dwz);
-	      *parent_entry
-		= (cooked_index_entry *) m_die_range_map.find (lookup);
+	      CORE_ADDR addr = form_addr (origin_offset, origin_is_dwz);
+	      if (new_reader->cu == reader->cu
+		  && new_info_ptr > watermark_ptr)
+		*maybe_defer = addr;
+	      else
+		{
+		  void *obj = m_die_range_map.find (addr);
+		  *parent_entry = static_cast <cooked_index_entry *> (obj);
+		}
 	    }
 
 	  unsigned int bytes_read;

base-commit: d445b7300b129a4886132ec31a23c7c2c894fa75
-- 
2.35.3

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File gdb-symtab-refactor-condition-in-scan_attributes.patch of Package gdb (Revision 25be0d849211794216ee6b3a1df5f7ed)

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