Use gdb::unique_ptr in elf_read_minimal_symbols

This changes elf_read_minimal_symbols to use gdb::unique_ptr rather
than an explicit allocation.  This removes a cleanup.

2016-10-21  Tom Tromey  <tom@tromey.com>

	* elfread.c (elf_read_minimal_symbols): Use gdb::unique_ptr.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e28e7744c5bc540a08fbd25bc104204d78fbd1b3..5c87f32571201cf13e3ca81ef87ae0d71b674ea0 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2016-10-21  Tom Tromey  <tom@tromey.com>
+
+       * elfread.c (elf_read_minimal_symbols): Use gdb::unique_ptr.
+
 2016-10-21  Tom Tromey  <tom@tromey.com>
 
        * cli/cli-dump.c (dump_memory_to_file): Use gdb::unique_ptr.

diff --git a/gdb/elfread.c b/gdb/elfread.c
index 56fac2831e7f47ae2abdb367b7edf018ef5c06ab..485e55de471db82a2c1300da1fc83daebbe5debd 100644 (file)
--- a/gdb/elfread.c
+++ b/gdb/elfread.c
@@ -1024,7 +1024,6 @@ elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags,
                          const struct elfinfo *ei)
 {
   bfd *synth_abfd, *abfd = objfile->obfd;
-  struct cleanup *back_to;
   long symcount = 0, dynsymcount = 0, synthcount, storage_needed;
   asymbol **symbol_table = NULL, **dyn_symbol_table = NULL;
   asymbol *synthsyms;
@@ -1053,7 +1052,6 @@ elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags,
     }
 
   minimal_symbol_reader reader (objfile);
-  back_to = make_cleanup (null_cleanup, NULL);
 
   /* Allocate struct to keep track of the symfile.  */
   dbx = XCNEW (struct dbx_symfile_info);
@@ -1135,16 +1133,14 @@ elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags,
                                         &synthsyms);
   if (synthcount > 0)
     {
-      asymbol **synth_symbol_table;
       long i;
 
-      make_cleanup (xfree, synthsyms);
-      synth_symbol_table = XNEWVEC (asymbol *, synthcount);
+      gdb::unique_ptr<asymbol *[]>
+       synth_symbol_table (new asymbol *[synthcount]);
       for (i = 0; i < synthcount; i++)
        synth_symbol_table[i] = synthsyms + i;
-      make_cleanup (xfree, synth_symbol_table);
       elf_symtab_read (reader, objfile, ST_SYNTHETIC, synthcount,
-                      synth_symbol_table, 1);
+                      synth_symbol_table.get (), 1);
     }
 
   /* Install any minimal symbols that have been collected as the current
@@ -1154,7 +1150,6 @@ elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags,
      which will do this.  */
 
   reader.install ();
-  do_cleanups (back_to);
 
   if (symtab_create_debug)
     fprintf_unfiltered (gdb_stdlog, "Done reading minimal symbols.\n");