/* sym_read (objfile, addr, mainline)
Reads a symbol file into a psymtab (or possibly a symtab).
- OBJFILE is the objfile struct for the file we are reading. ADDR
- is the offset between the file's specified start address and
- its true address in memory. MAINLINE is 1 if this is the
+ OBJFILE is the objfile struct for the file we are reading.
+ SECTION_OFFSETS
+ are the offset between the file's specified section addresses and
+ their true addresses in memory.
+ MAINLINE is 1 if this is the
main symbol table being read, and 0 if a secondary
symbol file (e.g. shared library or dynamically loaded file)
is being read. */
- void (*sym_read) PARAMS ((struct objfile *, CORE_ADDR, int));
+ void (*sym_read) PARAMS ((struct objfile *, struct section_offsets *, int));
/* Called when we are finished with an objfile. Should do all cleanup
that is specific to the object file format for the particular objfile. */
void (*sym_finish) PARAMS ((struct objfile *));
+ /* This function produces a file-dependent section_offsets structure,
+ allocated in the objfile's storage, and based on the parameter.
+ The parameter is currently a CORE_ADDR (FIXME!) for backward compatibility
+ with the higher levels of GDB. It should probably be changed to
+ a string, where NULL means the default, and others are parsed in a file
+ dependent way. The result of this function is handed in to sym_read. */
+
+ struct section_offsets *(*sym_offsets) PARAMS ((struct objfile *, CORE_ADDR));
+
/* Finds the next struct sym_fns. They are allocated and initialized
in whatever module implements the functions pointed to; an
initializer calls add_symtab_fns to add them to the global chain. */
};
-/* Master structure for keeping track of each input file from which
- gdb reads symbols. One of these is allocated for each such file we
- access, e.g. the exec_file, symbol_file, and any shared library object
- files. */
-
-struct objfile
-{
-
- /* All struct objfile's are chained together by their next pointers.
- The global variable "object_files" points to the first link in this
- chain. */
-
- struct objfile *next;
-
- /* The object file's name. Malloc'd; free it if you free this struct. */
-
- char *name;
-
- /* Some flag bits for this objfile. */
-
- unsigned short flags;
-
- /* Each objfile points to a linked list of symtabs derived from this file,
- one symtab structure for each compilation unit (source file). Each link
- in the symtab list contains a backpointer to this objfile. */
-
- struct symtab *symtabs;
-
- /* Each objfile points to a linked list of partial symtabs derived from
- this file, one partial symtab structure for each compilation unit
- (source file). */
-
- struct partial_symtab *psymtabs;
-
- /* List of freed partial symtabs, available for re-use */
-
- struct partial_symtab *free_psymtabs;
-
- /* The object file's BFD. Can be null, in which case bfd_open (name) and
- put the result here. */
-
- bfd *obfd;
-
- /* The modification timestamp of the object file, as of the last time
- we read its symbols. */
-
- long mtime;
-
- /* Obstacks to hold objects that should be freed when we load a new symbol
- table from this object file. */
-
- struct obstack psymbol_obstack; /* Partial symbols */
- struct obstack symbol_obstack; /* Full symbols */
- struct obstack type_obstack; /* Types */
-
- /* Vectors of all partial symbols read in from file. The actual data
- is stored in the psymbol_obstack. */
-
- struct psymbol_allocation_list global_psymbols;
- struct psymbol_allocation_list static_psymbols;
-
- /* Each file contains a pointer to an array of minimal symbols for all
- global symbols that are defined within the file. The array is terminated
- by a "null symbol", one that has a NULL pointer for the name and a zero
- value for the address. This makes it easy to walk through the array
- when passed a pointer to somewhere in the middle of it. There is also
- a count of the number of symbols, which does include the terminating
- null symbol. The array itself, as well as all the data that it points
- to, should be allocated on the symbol_obstack for this file. */
-
- struct minimal_symbol *msymbols;
- int minimal_symbol_count;
-
- /* For object file formats which don't specify fundamental types, gdb
- can create such types. For now, it maintains a vector of pointers
- to these internally created fundamental types on a per objfile basis,
- however it really should ultimately keep them on a per-compilation-unit
- basis, to account for linkage-units that consist of a number of
- compilation units that may have different fundamental types, such as
- linking C modules with ADA modules, or linking C modules that are
- compiled with 32-bit ints with C modules that are compiled with 64-bit
- ints (not inherently evil with a smarter linker). */
-
- struct type **fundamental_types;
-
- /* The mmalloc() malloc-descriptor for this objfile if we are using
- the memory mapped malloc() package to manage storage for this objfile's
- data. NULL if we are not. */
-
- PTR md;
-
- /* Structure which keeps track of functions that manipulate objfile's
- of the same type as this objfile. I.E. the function to read partial
- symbols for example. Note that this structure is in statically
- allocated memory, and is shared by all objfiles that use the
- object module reader of this type. */
-
- struct sym_fns *sf;
-
- /* Hook for information which is shared by sym_init and sym_read for
- this objfile. It is typically a pointer to malloc'd memory. */
-
- PTR sym_private;
-
-};
-
-/* Defines for the objfile flag word. */
-
-/* Gdb can arrange to allocate storage for all objects related to a
- particular objfile in a designated section of it's address space,
- managed at a low level by mmap() and using a special version of
- malloc that handles malloc/free/realloc on top of the mmap() interface.
- This allows the "internal gdb state" for a particular objfile to be
- dumped to a gdb state file and subsequently reloaded at a later time. */
-
-#define OBJF_MAPPED (1 << 0) /* Objfile data is mmap'd */
-
-
extern void
extend_psymbol_list PARAMS ((struct psymbol_allocation_list *,
struct objfile *));
extern struct symtab *
allocate_symtab PARAMS ((char *, struct objfile *));
-extern struct objfile *
-allocate_objfile PARAMS ((bfd *, int));
-
-extern void
-free_objfile PARAMS ((struct objfile *));
-
-extern void
-free_all_objfiles PARAMS ((void));
-
extern int
free_named_symtabs PARAMS ((char *));
extern void
add_symtab_fns PARAMS ((struct sym_fns *));
+extern void
+init_entry_point_info PARAMS ((struct objfile *));
+
extern void
syms_from_objfile PARAMS ((struct objfile *, CORE_ADDR, int, int));
+extern void
+new_symfile_objfile PARAMS ((struct objfile *, int, int));
+
extern struct partial_symtab *
-start_psymtab_common PARAMS ((struct objfile *, CORE_ADDR, char *, CORE_ADDR,
+start_psymtab_common PARAMS ((struct objfile *, struct section_offsets *,
+ char *, CORE_ADDR,
struct partial_symbol *,
struct partial_symbol *));
/* Variables */
-/* The object file that the main symbol table was loaded from (e.g. the
- argument to the "symbol-file" or "file" command). */
-
-extern struct objfile *symfile_objfile;
-
-/* Where execution starts in symfile */
-
-extern CORE_ADDR entry_point;
-
-/* Root of object file struct chain. */
-
-extern struct objfile *object_files;
-
-/* Traverse all object files. ALL_OBJFILES_SAFE works even if you delete
- the objfile during the traversal. */
-
-#define ALL_OBJFILES(obj) \
- for (obj = object_files; 0 != obj; obj = obj->next)
-
-#define ALL_OBJFILES_SAFE(obj,nxt) \
- for (obj = object_files; obj? (nxt=obj->next, 1): 0; obj = nxt)
-
-/* Support for complaining about things in the symbol file that aren't
- catastrophic.
-
- Each such thing gets a counter. The first time we have the problem,
- during a symbol read, we report it. At the end of symbol reading,
- if verbose, we report how many of each problem we had. */
-
-struct complaint {
- char *message;
- unsigned counter;
- struct complaint *next;
-};
-
-/* Root of the chain of complaints that have at some point been issued.
- This is used to reset the counters, and/or report the total counts. */
-
-extern struct complaint complaint_root[1];
-
-/* Functions that handle complaints. (in symfile.c) */
-
-extern void
-complain PARAMS ((struct complaint *, char *));
-
-extern void
-clear_complaints PARAMS ((int sym_reading, int noisy));
-
/* From symfile.c */
extern struct partial_symtab *
allocate_psymtab PARAMS ((char *, struct objfile *));
-/* From minsyms.c */
-
-extern PTR
-iterate_over_msymbols PARAMS ((PTR (*func) (struct objfile *,
- struct minimal_symbol *,
- PTR arg1, PTR arg2, PTR arg3),
- PTR arg1, PTR arg2, PTR arg3));
-
-/* From objfiles.c */
+/* From dwarfread.c */
-extern PTR
-iterate_over_objfiles PARAMS ((PTR (*func) (struct objfile *,
- PTR arg1, PTR arg2, PTR arg3),
- PTR arg1, PTR arg2, PTR arg3));
+extern void
+dwarf_build_psymtabs PARAMS ((struct objfile *, struct section_offsets *, int,
+ file_ptr, unsigned int, file_ptr, unsigned int));
-extern PTR
-iterate_over_symtabs PARAMS ((PTR (*func) (struct objfile *, struct symtab *,
- PTR arg1, PTR arg2, PTR arg3),
- PTR arg1, PTR arg2, PTR arg3));
+/* From dbxread.c */
-extern PTR
-iterate_over_psymtabs PARAMS ((PTR (*func) (struct objfile *,
- struct partial_symtab *,
- PTR arg1, PTR arg2, PTR arg3),
- PTR arg1, PTR arg2, PTR arg3));
+extern void
+elfstab_build_psymtabs PARAMS ((struct objfile *objfile,
+ struct section_offsets *section_offsets,
+ int mainline,
+ file_ptr staboff, unsigned int stabsize,
+ file_ptr stabstroffset, unsigned int stabstrsize));
-/* From dwarfread.c */
+/* From demangle.c */
extern void
-dwarf_build_psymtabs PARAMS ((int, char *, CORE_ADDR, int, unsigned int,
- unsigned int, unsigned int, unsigned int,
- struct objfile *));
+set_demangling_style PARAMS ((char *));
#endif /* !defined(SYMFILE_H) */
projects / thirdparty / binutils-gdb.git / blobdiff