Change dbxread.c to use type-safe registry
This changes dbxread.c to use the type-safe registry. In a couple of spots, you'll see that dbx_objfile_data_key.emplace is called but the result is not used; this is because those functions refer to the key via the various DBX_* macros. 2019-07-10 Tom Tromey <tromey@adacore.com> * gdb-stabs.h (struct dbx_symfile_info): Add initializers and destructor. (dbx_objfile_data_key): Change type and declare later. (DBX_SYMFILE_INFO): Rewrite. * dbxread.c (dbx_objfile_data_key): Change type. (dbx_symfile_init): Update. (~dbx_symfile_info): Rename from dbx_free_symfile_info. Update. (coffstab_build_psymtabs, elfstab_build_psymtabs) (stabsect_build_psymtabs, _initialize_dbxread): Update.
This commit is contained in:
Tom Tromey
parent
cb60f4208b
commit
22a20dca3a
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@ -1,3 +1,15 @@
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2019-07-10 Tom Tromey <tromey@adacore.com>
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* gdb-stabs.h (struct dbx_symfile_info): Add initializers and
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destructor.
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(dbx_objfile_data_key): Change type and declare later.
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(DBX_SYMFILE_INFO): Rewrite.
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* dbxread.c (dbx_objfile_data_key): Change type.
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(dbx_symfile_init): Update.
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(~dbx_symfile_info): Rename from dbx_free_symfile_info. Update.
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(coffstab_build_psymtabs, elfstab_build_psymtabs)
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(stabsect_build_psymtabs, _initialize_dbxread): Update.
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2019-07-10 Tom Tromey <tromey@adacore.com>
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* jit.c (jit_program_space_key): Change type. Move lower.
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@ -61,7 +61,7 @@
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/* Key for dbx-associated data. */
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const struct objfile_data *dbx_objfile_data_key;
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objfile_key<dbx_symfile_info> dbx_objfile_data_key;
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/* We put a pointer to this structure in the read_symtab_private field
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of the psymtab. */
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@ -590,11 +590,9 @@ dbx_symfile_init (struct objfile *objfile)
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char *name = bfd_get_filename (sym_bfd);
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asection *text_sect;
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unsigned char size_temp[DBX_STRINGTAB_SIZE_SIZE];
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struct dbx_symfile_info *dbx;
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/* Allocate struct to keep track of the symfile. */
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dbx = XCNEW (struct dbx_symfile_info);
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set_objfile_data (objfile, dbx_objfile_data_key, dbx);
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dbx_objfile_data_key.emplace (objfile);
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DBX_TEXT_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
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DBX_DATA_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".data");
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@ -703,15 +701,12 @@ dbx_symfile_finish (struct objfile *objfile)
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free_header_files ();
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}
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static void
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dbx_free_symfile_info (struct objfile *objfile, void *arg)
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dbx_symfile_info::~dbx_symfile_info ()
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{
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struct dbx_symfile_info *dbx = (struct dbx_symfile_info *) arg;
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if (dbx->header_files != NULL)
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if (header_files != NULL)
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{
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int i = dbx->n_header_files;
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struct header_file *hfiles = dbx->header_files;
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int i = n_header_files;
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struct header_file *hfiles = header_files;
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while (--i >= 0)
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{
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@ -720,8 +715,6 @@ dbx_free_symfile_info (struct objfile *objfile, void *arg)
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}
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xfree (hfiles);
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}
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xfree (dbx);
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}
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@ -2952,8 +2945,7 @@ coffstab_build_psymtabs (struct objfile *objfile,
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unsigned int stabsize;
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/* Allocate struct to keep track of stab reading. */
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struct dbx_symfile_info *dbx = XCNEW (struct dbx_symfile_info);
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set_objfile_data (objfile, dbx_objfile_data_key, dbx);
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dbx_objfile_data_key.emplace (objfile);
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DBX_TEXT_ADDR (objfile) = textaddr;
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DBX_TEXT_SIZE (objfile) = textsize;
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@ -3041,8 +3033,7 @@ elfstab_build_psymtabs (struct objfile *objfile, asection *stabsect,
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stabsread_new_init ();
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/* Allocate struct to keep track of stab reading. */
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struct dbx_symfile_info *dbx = XCNEW (struct dbx_symfile_info);
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set_objfile_data (objfile, dbx_objfile_data_key, dbx);
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dbx_objfile_data_key.emplace (objfile);
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/* Find the first and last text address. dbx_symfile_read seems to
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want this. */
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@ -3122,7 +3113,6 @@ stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
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asection *stabsect;
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asection *stabstrsect;
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asection *text_sect;
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struct dbx_symfile_info *dbx;
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stabsect = bfd_get_section_by_name (sym_bfd, stab_name);
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stabstrsect = bfd_get_section_by_name (sym_bfd, stabstr_name);
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@ -3135,8 +3125,7 @@ stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
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"but not string section (%s)"),
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stab_name, stabstr_name);
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dbx = XCNEW (struct dbx_symfile_info);
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set_objfile_data (objfile, dbx_objfile_data_key, dbx);
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dbx_objfile_data_key.emplace (objfile);
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text_sect = bfd_get_section_by_name (sym_bfd, text_name);
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if (!text_sect)
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@ -3201,7 +3190,4 @@ void
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_initialize_dbxread (void)
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{
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add_symtab_fns (bfd_target_aout_flavour, &aout_sym_fns);
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dbx_objfile_data_key
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= register_objfile_data_with_cleanup (NULL, dbx_free_symfile_info);
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}
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@ -27,41 +27,42 @@
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each others' functions as required. */
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/* The tag used to find the DBX info attached to an objfile. This is
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global because it is referenced by several modules. */
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extern const struct objfile_data *dbx_objfile_data_key;
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/* Information is passed among various dbxread routines for accessing
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symbol files. A pointer to this structure is kept in the objfile,
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using the dbx_objfile_data_key. */
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struct dbx_symfile_info
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{
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CORE_ADDR text_addr; /* Start of text section */
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int text_size; /* Size of text section */
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int symcount; /* How many symbols are there in the file */
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char *stringtab; /* The actual string table */
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int stringtab_size; /* Its size */
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file_ptr symtab_offset; /* Offset in file to symbol table */
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int symbol_size; /* Bytes in a single symbol */
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~dbx_symfile_info ();
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CORE_ADDR text_addr = 0; /* Start of text section */
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int text_size = 0; /* Size of text section */
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int symcount = 0; /* How many symbols are there in the file */
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char *stringtab = nullptr; /* The actual string table */
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int stringtab_size = 0; /* Its size */
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file_ptr symtab_offset = 0; /* Offset in file to symbol table */
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int symbol_size = 0; /* Bytes in a single symbol */
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/* See stabsread.h for the use of the following. */
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struct header_file *header_files;
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int n_header_files;
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int n_allocated_header_files;
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struct header_file *header_files = nullptr;
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int n_header_files = 0;
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int n_allocated_header_files = 0;
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/* Pointers to BFD sections. These are used to speed up the building of
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minimal symbols. */
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asection *text_section;
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asection *data_section;
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asection *bss_section;
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asection *text_section = nullptr;
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asection *data_section = nullptr;
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asection *bss_section = nullptr;
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/* Pointer to the separate ".stab" section, if there is one. */
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asection *stab_section;
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asection *stab_section = nullptr;
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};
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#define DBX_SYMFILE_INFO(o) \
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((struct dbx_symfile_info *) objfile_data ((o), dbx_objfile_data_key))
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/* The tag used to find the DBX info attached to an objfile. This is
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global because it is referenced by several modules. */
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extern objfile_key<dbx_symfile_info> dbx_objfile_data_key;
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#define DBX_SYMFILE_INFO(o) (dbx_objfile_data_key.get (o))
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#define DBX_TEXT_ADDR(o) (DBX_SYMFILE_INFO(o)->text_addr)
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#define DBX_TEXT_SIZE(o) (DBX_SYMFILE_INFO(o)->text_size)
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#define DBX_SYMCOUNT(o) (DBX_SYMFILE_INFO(o)->symcount)
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