Replace psymbol_allocation_list with std::vector

psymbol_allocation_list is basically a vector implementation.  We can
replace it with an std::vector, now that objfile has been C++-ified.

I sent this to the buildbot, there are a few suspicious failures, but
I don't think they are related to this patch.  For example on powerpc:

new FAIL: gdb.base/catch-syscall.exp: execve: syscall execve has returned
new FAIL: gdb.base/catch-syscall.exp: execve: continue to main
new FAIL: gdb.base/catch-syscall.exp: execve: continue until exit

I get the same failures when testing manually on gcc112, without this
patch.

gdb/ChangeLog:

	* objfiles.h: Don't include symfile.h.
	(struct partial_symbol): Remove forward-declaration.
	(struct objfile) <global_psymbols, static_psymbols>: Change type
	to std::vector<partial_symbol *>.
	* objfiles.c (objfile::objfile): Don't memset those fields.
	(objfile::~objfile): Don't free those fields.
	* psympriv.h (struct psymbol_allocation_list): Remove
	forward-declaration.
	(add_psymbol_to_list): Change psymbol_allocation_list parameter
	to std::vector.
	(start_psymtab_common): Change parameters to std::vector.
	* psymtab.c: Include algorithm.
	(require_partial_symbols): Call shrink_to_fit.
	(find_pc_sect_psymbol): Adjust to vector change.
	(match_partial_symbol): Likewise.
	(lookup_partial_symbol): Likewise.
	(psym_relocate): Likewise.
	(dump_psymtab): Likewise.
	(recursively_search_psymtabs): Likewise.
	(compare_psymbols): Remove.
	(sort_pst_symbols): Adjust to vector change.
	(start_psymtab_common): Likewise.
	(end_psymtab_common): Likewise.
	(psymbol_bcache_full): De-constify return value.
	(add_psymbol_to_bcache): Likewise.
	(extend_psymbol_list): Remove.
	(append_psymbol_to_list): Adjust to vector change.
	(add_psymbol_to_list): Likewise.
	(init_psymbol_list): Likewise.
	(maintenance_info_psymtabs): Likewise.
	(maintenance_check_psymtabs): Likewise.
	* symfile.h (struct psymbol_allocation_list): Remove.
	* symfile.c (reread_symbols): Adjust to vector change.
	* dbxread.c (start_psymtab): Change type of parameters.
	(dbx_symfile_read): Adjust to vector change.
	(read_dbx_symtab): Likewise.
	(start_psymtab): Change type of parameters.
	* dwarf2read.c (dwarf2_build_psymtabs): Adjust to vector change.
	(create_partial_symtab): Likewise.
	(add_partial_symbol): Likewise.
	(write_one_signatured_type): Likewise.
	(recursively_write_psymbols): Likewise.
	* mdebugread.c (parse_partial_symbols): Likewise.
	* xcoffread.c (xcoff_start_psymtab): Change type of parameters.
	(scan_xcoff_symtab): Adjust to vector change.
	(xcoff_initial_scan): Likewise.

1 files changed, 9 insertions, 8 deletions

diff --git a/gdb/xcoffread.c b/gdb/xcoffread.c
index 0707cd7..ea11b3f 100644
--- a/gdb/xcoffread.c
+++ b/gdb/xcoffread.c
@@ -2030,15 +2030,15 @@ static unsigned int first_fun_line_offset;
 static struct partial_symtab *
 xcoff_start_psymtab (struct objfile *objfile,
 		     const char *filename, int first_symnum,
-		     struct partial_symbol **global_syms,
-		     struct partial_symbol **static_syms)
+		     std::vector<partial_symbol *> &global_psymbols,
+		     std::vector<partial_symbol *> &static_psymbols)
 {
   struct partial_symtab *result =
     start_psymtab_common (objfile,
 			  filename,
 			  /* We fill in textlow later.  */
 			  0,
-			  global_syms, static_syms);
+			  global_psymbols, static_psymbols);
 
   result->read_symtab_private =
     XOBNEW (&objfile->objfile_obstack, struct symloc);
@@ -2332,8 +2332,8 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
 			      (objfile,
 			       filestring,
 			       symnum_before,
-			       objfile->global_psymbols.next,
-			       objfile->static_psymbols.next);
+			       objfile->global_psymbols,
+			       objfile->static_psymbols);
 			  }
 		      }
 		    /* Activate the misc_func_recorded mechanism for
@@ -2515,8 +2515,8 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
 	    pst = xcoff_start_psymtab (objfile,
 				       filestring,
 				       symnum_before,
-				       objfile->global_psymbols.next,
-				       objfile->static_psymbols.next);
+				       objfile->global_psymbols,
+				       objfile->static_psymbols);
 	    last_csect_name = NULL;
 	  }
 	  break;
@@ -3018,7 +3018,8 @@ xcoff_initial_scan (struct objfile *objfile, symfile_add_flags symfile_flags)
     perror_with_name (_("reading symbol table"));
 
   /* If we are reinitializing, or if we have never loaded syms yet, init.  */
-  if (objfile->global_psymbols.size == 0 && objfile->static_psymbols.size == 0)
+  if (objfile->global_psymbols.capacity () == 0
+      && objfile->static_psymbols.capacity () == 0)
     /* I'm not sure how how good num_symbols is; the rule of thumb in
        init_psymbol_list was developed for a.out.  On the one hand,
        num_symbols includes auxents.  On the other hand, it doesn't