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Change dbxread.c to use type-safe registry

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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
2019-06-26 13:12:13 -06:00
parent cb60f4208b
commit 22a20dca3a
3 changed files with 42 additions and 43 deletions
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41
gdb/gdb-stabs.h
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@ -27,41 +27,42 @@
each others' functions as required. */
/* The tag used to find the DBX info attached to an objfile. This is
global because it is referenced by several modules. */
extern const struct objfile_data *dbx_objfile_data_key;
/* Information is passed among various dbxread routines for accessing
symbol files. A pointer to this structure is kept in the objfile,
using the dbx_objfile_data_key. */
struct dbx_symfile_info
{
CORE_ADDR text_addr; /* Start of text section */
int text_size; /* Size of text section */
int symcount; /* How many symbols are there in the file */
char *stringtab; /* The actual string table */
int stringtab_size; /* Its size */
file_ptr symtab_offset; /* Offset in file to symbol table */
int symbol_size; /* Bytes in a single symbol */
~dbx_symfile_info ();
CORE_ADDR text_addr = 0; /* Start of text section */
int text_size = 0; /* Size of text section */
int symcount = 0; /* How many symbols are there in the file */
char *stringtab = nullptr; /* The actual string table */
int stringtab_size = 0; /* Its size */
file_ptr symtab_offset = 0; /* Offset in file to symbol table */
int symbol_size = 0; /* Bytes in a single symbol */
/* See stabsread.h for the use of the following. */
struct header_file *header_files;
int n_header_files;
int n_allocated_header_files;
struct header_file *header_files = nullptr;
int n_header_files = 0;
int n_allocated_header_files = 0;
/* Pointers to BFD sections. These are used to speed up the building of
minimal symbols. */
asection *text_section;
asection *data_section;
asection *bss_section;
asection *text_section = nullptr;
asection *data_section = nullptr;
asection *bss_section = nullptr;
/* Pointer to the separate ".stab" section, if there is one. */
asection *stab_section;
asection *stab_section = nullptr;
};
#define DBX_SYMFILE_INFO(o) \
((struct dbx_symfile_info *) objfile_data ((o), dbx_objfile_data_key))
/* The tag used to find the DBX info attached to an objfile. This is
global because it is referenced by several modules. */
extern objfile_key<dbx_symfile_info> dbx_objfile_data_key;
#define DBX_SYMFILE_INFO(o) (dbx_objfile_data_key.get (o))
#define DBX_TEXT_ADDR(o) (DBX_SYMFILE_INFO(o)->text_addr)
#define DBX_TEXT_SIZE(o) (DBX_SYMFILE_INFO(o)->text_size)
#define DBX_SYMCOUNT(o) (DBX_SYMFILE_INFO(o)->symcount)