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From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>
Subject: [PATCH v3 01/33] Split create_addrmap_from_aranges
Date: Sat,  4 Dec 2021 13:38:12 -0700	[thread overview]
Message-ID: <20211204203844.1188999-2-tom@tromey.com> (raw)
In-Reply-To: <20211204203844.1188999-1-tom@tromey.com>

This patch splits create_addrmap_from_aranges into a wrapper function
and a worker function.  The worker function is then used in a later
patch.
---
 gdb/dwarf2/read.c | 49 +++++++++++++++++++++++++++++++----------------
 1 file changed, 32 insertions(+), 17 deletions(-)

diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index ff5758eb0a4..ce579b1ed75 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -2579,12 +2579,14 @@ create_addrmap_from_index (dwarf2_per_objfile *per_objfile,
 						 &per_bfd->obstack);
 }
 
-/* Read the address map data from DWARF-5 .debug_aranges, and use it to
-   populate the psymtabs_addrmap.  */
+/* Read the address map data from DWARF-5 .debug_aranges, and use it
+   to populate given addrmap.  Returns true on success, false on
+   failure.  */
 
-static void
-create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
-			     struct dwarf2_section_info *section)
+static bool
+read_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
+			   struct dwarf2_section_info *section,
+			   addrmap *mutable_map)
 {
   struct objfile *objfile = per_objfile->objfile;
   bfd *abfd = objfile->obfd;
@@ -2592,9 +2594,6 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
   const CORE_ADDR baseaddr = objfile->text_section_offset ();
   dwarf2_per_bfd *per_bfd = per_objfile->per_bfd;
 
-  auto_obstack temp_obstack;
-  addrmap *mutable_map = addrmap_create_mutable (&temp_obstack);
-
   std::unordered_map<sect_offset,
 		     dwarf2_per_cu_data *,
 		     gdb::hash_enum<sect_offset>>
@@ -2615,7 +2614,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 	  warning (_("Section .debug_aranges in %s has duplicate "
 		     "debug_info_offset %s, ignoring .debug_aranges."),
 		   objfile_name (objfile), sect_offset_str (per_cu->sect_off));
-	  return;
+	  return false;
 	}
     }
 
@@ -2646,7 +2645,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 		   plongest (entry_addr - section->buffer),
 		   plongest (bytes_read + entry_length),
 		   pulongest (section->size));
-	  return;
+	  return false;
 	}
 
       /* The version number.  */
@@ -2658,7 +2657,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 		     "has unsupported version %d, ignoring .debug_aranges."),
 		   objfile_name (objfile),
 		   plongest (entry_addr - section->buffer), version);
-	  return;
+	  return false;
 	}
 
       const uint64_t debug_info_offset
@@ -2674,7 +2673,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 		   objfile_name (objfile),
 		   plongest (entry_addr - section->buffer),
 		   pulongest (debug_info_offset));
-	  return;
+	  return false;
 	}
       dwarf2_per_cu_data *const per_cu = per_cu_it->second;
 
@@ -2685,7 +2684,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 		     "address_size %u is invalid, ignoring .debug_aranges."),
 		   objfile_name (objfile),
 		   plongest (entry_addr - section->buffer), address_size);
-	  return;
+	  return false;
 	}
 
       const uint8_t segment_selector_size = *addr++;
@@ -2697,7 +2696,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 		   objfile_name (objfile),
 		   plongest (entry_addr - section->buffer),
 		   segment_selector_size);
-	  return;
+	  return false;
 	}
 
       /* Must pad to an alignment boundary that is twice the address
@@ -2718,7 +2717,7 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 			 "ignoring .debug_aranges."),
 		       objfile_name (objfile),
 		       plongest (entry_addr - section->buffer));
-	      return;
+	      return false;
 	    }
 	  ULONGEST start = extract_unsigned_integer (addr, address_size,
 						     dwarf5_byte_order);
@@ -2742,8 +2741,24 @@ create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
 	}
     }
 
-  per_bfd->index_addrmap = addrmap_create_fixed (mutable_map,
-						 &per_bfd->obstack);
+  return true;
+}
+
+/* Read the address map data from DWARF-5 .debug_aranges, and use it to
+   populate the psymtabs_addrmap.  */
+
+static void
+create_addrmap_from_aranges (dwarf2_per_objfile *per_objfile,
+			     struct dwarf2_section_info *section)
+{
+  dwarf2_per_bfd *per_bfd = per_objfile->per_bfd;
+
+  auto_obstack temp_obstack;
+  addrmap *mutable_map = addrmap_create_mutable (&temp_obstack);
+
+  if (read_addrmap_from_aranges (per_objfile, section, mutable_map))
+    per_bfd->index_addrmap = addrmap_create_fixed (mutable_map,
+						   &per_bfd->obstack);
 }
 
 /* A helper function that reads the .gdb_index from BUFFER and fills
-- 
2.31.1


  reply	other threads:[~2021-12-04 20:38 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-04 20:38 [PATCH v3 00/33] Rewrite the DWARF "partial" reader Tom Tromey
2021-12-04 20:38 ` Tom Tromey [this message]
2021-12-04 20:38 ` [PATCH v3 02/33] Fix latent bug in read_addrmap_from_aranges Tom Tromey
2021-12-04 20:38 ` [PATCH v3 03/33] Add dwarf2_per_cu_data::addresses_seen Tom Tromey
2021-12-04 20:38 ` [PATCH v3 04/33] Refactor dwarf2_get_pc_bounds Tom Tromey
2021-12-04 20:38 ` [PATCH v3 05/33] Allow ada_decode not to decode operators Tom Tromey
2021-12-04 20:38 ` [PATCH v3 06/33] Let skip_one_die not skip children Tom Tromey
2021-12-04 20:38 ` [PATCH v3 07/33] Add name splitting Tom Tromey
2021-12-04 20:38 ` [PATCH v3 08/33] Add new overload of dwarf5_djb_hash Tom Tromey
2021-12-04 20:38 ` [PATCH v3 09/33] Refactor build_type_psymtabs_reader Tom Tromey
2021-12-04 20:38 ` [PATCH v3 10/33] Add batching parameter to parallel_for_each Tom Tromey
2021-12-04 20:38 ` [PATCH v3 11/33] Return vector of results from parallel_for_each Tom Tromey
2022-03-29 17:36   ` Pedro Alves
2022-03-29 20:07     ` Tom Tromey
2021-12-04 20:38 ` [PATCH v3 12/33] Specialize std::hash for gdb_exception Tom Tromey
2021-12-04 20:38 ` [PATCH v3 13/33] Add "fullname" handling to file_and_directory Tom Tromey
2021-12-07 17:17   ` Tom Tromey
2021-12-04 20:38 ` [PATCH v3 14/33] Introduce DWARF abbrev cache Tom Tromey
2021-12-04 20:38 ` [PATCH v3 15/33] Statically examine abbrev properties Tom Tromey
2021-12-04 20:38 ` [PATCH v3 16/33] Update skip_one_die for new " Tom Tromey
2021-12-04 20:38 ` [PATCH v3 17/33] Introduce the new DWARF index class Tom Tromey
2021-12-04 20:38 ` [PATCH v3 18/33] The new DWARF indexer Tom Tromey
2022-03-29 18:04   ` Pedro Alves
2022-03-29 20:08     ` Tom Tromey
2021-12-04 20:38 ` [PATCH v3 19/33] Implement quick_symbol_functions for cooked DWARF index Tom Tromey
2021-12-04 20:38 ` [PATCH v3 20/33] Wire in the new DWARF indexer Tom Tromey
2021-12-04 20:38 ` [PATCH v3 21/33] Introduce thread-safe handling for complaints Tom Tromey
2021-12-04 20:38 ` [PATCH v3 22/33] Pre-read DWARF section data Tom Tromey
2021-12-04 20:38 ` [PATCH v3 23/33] Parallelize DWARF indexing Tom Tromey
2022-03-30 10:24   ` Pedro Alves
2022-03-30 20:23     ` Tom Tromey
2022-03-30 21:24       ` Tom Tromey
2021-12-04 20:38 ` [PATCH v3 24/33] "Finalize" the DWARF index in the background Tom Tromey
2021-12-04 20:38 ` [PATCH v3 25/33] Rename write_psymtabs_to_index Tom Tromey
2021-12-04 20:38 ` [PATCH v3 26/33] Change the key type in psym_index_map Tom Tromey
2021-12-04 20:38 ` [PATCH v3 27/33] Change parameters to write_address_map Tom Tromey
2021-12-04 20:38 ` [PATCH v3 28/33] Genericize addrmap handling in the DWARF index writer Tom Tromey
2021-12-04 20:38 ` [PATCH v3 29/33] Adapt .gdb_index writer to new DWARF scanner Tom Tromey
2021-12-04 20:38 ` [PATCH v3 30/33] Adapt .debug_names " Tom Tromey
2021-12-04 20:38 ` [PATCH v3 31/33] Enable the new DWARF indexer Tom Tromey
2021-12-04 20:38 ` [PATCH v3 32/33] Delete DWARF psymtab code Tom Tromey
2021-12-04 20:38 ` [PATCH v3 33/33] Remove dwarf2_per_cu_data::v Tom Tromey
2022-01-05 17:18 ` [PATCH v3 00/33] Rewrite the DWARF "partial" reader Tom Tromey
2022-03-24 16:18   ` Tom Tromey

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