0d0e1a63ef
(register_objfile_data, set_objfile_data, objfile_data): New prototypes. * objfiles.c (objfile_alloc_data, objfile_free_data): New prototypes. (allocate_objfile): Call objfile_alloc_data. (free_objfile): Call objfile_free_data. (struct objfile_data): New. (struct objfile_data_registration): New. (struct objfile_data_registry): New. (objfile_data_registry): New variable. (register_objfile_data): New function. (objfile_alloc_data, objfile_free_data): New functions. (set_objfile_data, objfile_data): New functions. * dwarf2-frame.c (dwarf2_frame_data): New variable. (dwarf2_frame_find_fde, add_fde): Use new per-objfile data mechanism. (_initialize_dwarf2_frame): New function and prototype.
656 lines
25 KiB
C
656 lines
25 KiB
C
/* Definitions for symbol file management in GDB.
|
||
|
||
Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
|
||
2001, 2002, 2003 Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||
Boston, MA 02111-1307, USA. */
|
||
|
||
#if !defined (OBJFILES_H)
|
||
#define OBJFILES_H
|
||
|
||
#include "gdb_obstack.h" /* For obstack internals. */
|
||
#include "symfile.h" /* For struct psymbol_allocation_list */
|
||
|
||
struct bcache;
|
||
struct htab;
|
||
|
||
/* This structure maintains information on a per-objfile basis about the
|
||
"entry point" of the objfile, and the scope within which the entry point
|
||
exists. It is possible that gdb will see more than one objfile that is
|
||
executable, each with its own entry point.
|
||
|
||
For example, for dynamically linked executables in SVR4, the dynamic linker
|
||
code is contained within the shared C library, which is actually executable
|
||
and is run by the kernel first when an exec is done of a user executable
|
||
that is dynamically linked. The dynamic linker within the shared C library
|
||
then maps in the various program segments in the user executable and jumps
|
||
to the user executable's recorded entry point, as if the call had been made
|
||
directly by the kernel.
|
||
|
||
The traditional gdb method of using this info is to use the recorded entry
|
||
point to set the variables entry_file_lowpc and entry_file_highpc from
|
||
the debugging information, where these values are the starting address
|
||
(inclusive) and ending address (exclusive) of the instruction space in the
|
||
executable which correspond to the "startup file", I.E. crt0.o in most
|
||
cases. This file is assumed to be a startup file and frames with pc's
|
||
inside it are treated as nonexistent. Setting these variables is necessary
|
||
so that backtraces do not fly off the bottom of the stack.
|
||
|
||
Gdb also supports an alternate method to avoid running off the bottom
|
||
of the stack.
|
||
|
||
There are two frames that are "special", the frame for the function
|
||
containing the process entry point, since it has no predecessor frame,
|
||
and the frame for the function containing the user code entry point
|
||
(the main() function), since all the predecessor frames are for the
|
||
process startup code. Since we have no guarantee that the linked
|
||
in startup modules have any debugging information that gdb can use,
|
||
we need to avoid following frame pointers back into frames that might
|
||
have been built in the startup code, as we might get hopelessly
|
||
confused. However, we almost always have debugging information
|
||
available for main().
|
||
|
||
These variables are used to save the range of PC values which are
|
||
valid within the main() function and within the function containing
|
||
the process entry point. If we always consider the frame for
|
||
main() as the outermost frame when debugging user code, and the
|
||
frame for the process entry point function as the outermost frame
|
||
when debugging startup code, then all we have to do is have
|
||
DEPRECATED_FRAME_CHAIN_VALID return false whenever a frame's
|
||
current PC is within the range specified by these variables. In
|
||
essence, we set "ceilings" in the frame chain beyond which we will
|
||
not proceed when following the frame chain back up the stack.
|
||
|
||
A nice side effect is that we can still debug startup code without
|
||
running off the end of the frame chain, assuming that we have usable
|
||
debugging information in the startup modules, and if we choose to not
|
||
use the block at main, or can't find it for some reason, everything
|
||
still works as before. And if we have no startup code debugging
|
||
information but we do have usable information for main(), backtraces
|
||
from user code don't go wandering off into the startup code.
|
||
|
||
To use this method, define your DEPRECATED_FRAME_CHAIN_VALID macro
|
||
like:
|
||
|
||
#define DEPRECATED_FRAME_CHAIN_VALID(chain, thisframe) \
|
||
(chain != 0 \
|
||
&& !(inside_main_func ((thisframe)->pc)) \
|
||
&& !(inside_entry_func ((thisframe)->pc)))
|
||
|
||
and add initializations of the four scope controlling variables inside
|
||
the object file / debugging information processing modules. */
|
||
|
||
struct entry_info
|
||
{
|
||
|
||
/* The value we should use for this objects entry point.
|
||
The illegal/unknown value needs to be something other than 0, ~0
|
||
for instance, which is much less likely than 0. */
|
||
|
||
CORE_ADDR entry_point;
|
||
|
||
#define INVALID_ENTRY_POINT (~0) /* ~0 will not be in any file, we hope. */
|
||
|
||
/* Start (inclusive) and end (exclusive) of function containing the
|
||
entry point. */
|
||
|
||
CORE_ADDR entry_func_lowpc;
|
||
CORE_ADDR entry_func_highpc;
|
||
|
||
/* Start (inclusive) and end (exclusive) of object file containing the
|
||
entry point. */
|
||
|
||
CORE_ADDR entry_file_lowpc;
|
||
CORE_ADDR entry_file_highpc;
|
||
|
||
/* Start (inclusive) and end (exclusive) of the user code main() function. */
|
||
|
||
CORE_ADDR main_func_lowpc;
|
||
CORE_ADDR main_func_highpc;
|
||
|
||
/* Use these values when any of the above ranges is invalid. */
|
||
|
||
/* We use these values because it guarantees that there is no number that is
|
||
both >= LOWPC && < HIGHPC. It is also highly unlikely that 3 is a valid
|
||
module or function start address (as opposed to 0). */
|
||
|
||
#define INVALID_ENTRY_LOWPC (3)
|
||
#define INVALID_ENTRY_HIGHPC (1)
|
||
|
||
};
|
||
|
||
/* Sections in an objfile.
|
||
|
||
It is strange that we have both this notion of "sections"
|
||
and the one used by section_offsets. Section as used
|
||
here, (currently at least) means a BFD section, and the sections
|
||
are set up from the BFD sections in allocate_objfile.
|
||
|
||
The sections in section_offsets have their meaning determined by
|
||
the symbol format, and they are set up by the sym_offsets function
|
||
for that symbol file format.
|
||
|
||
I'm not sure this could or should be changed, however. */
|
||
|
||
struct obj_section
|
||
{
|
||
CORE_ADDR addr; /* lowest address in section */
|
||
CORE_ADDR endaddr; /* 1+highest address in section */
|
||
|
||
/* This field is being used for nefarious purposes by syms_from_objfile.
|
||
It is said to be redundant with section_offsets; it's not really being
|
||
used that way, however, it's some sort of hack I don't understand
|
||
and am not going to try to eliminate (yet, anyway). FIXME.
|
||
|
||
It was documented as "offset between (end)addr and actual memory
|
||
addresses", but that's not true; addr & endaddr are actual memory
|
||
addresses. */
|
||
CORE_ADDR offset;
|
||
|
||
sec_ptr the_bfd_section; /* BFD section pointer */
|
||
|
||
/* Objfile this section is part of. */
|
||
struct objfile *objfile;
|
||
|
||
/* True if this "overlay section" is mapped into an "overlay region". */
|
||
int ovly_mapped;
|
||
};
|
||
|
||
/* An import entry contains information about a symbol that
|
||
is used in this objfile but not defined in it, and so needs
|
||
to be imported from some other objfile */
|
||
/* Currently we just store the name; no attributes. 1997-08-05 */
|
||
typedef char *ImportEntry;
|
||
|
||
|
||
/* An export entry contains information about a symbol that
|
||
is defined in this objfile and available for use in other
|
||
objfiles */
|
||
typedef struct
|
||
{
|
||
char *name; /* name of exported symbol */
|
||
int address; /* offset subject to relocation */
|
||
/* Currently no other attributes 1997-08-05 */
|
||
}
|
||
ExportEntry;
|
||
|
||
|
||
/* The "objstats" structure provides a place for gdb to record some
|
||
interesting information about its internal state at runtime, on a
|
||
per objfile basis, such as information about the number of symbols
|
||
read, size of string table (if any), etc. */
|
||
|
||
struct objstats
|
||
{
|
||
int n_minsyms; /* Number of minimal symbols read */
|
||
int n_psyms; /* Number of partial symbols read */
|
||
int n_syms; /* Number of full symbols read */
|
||
int n_stabs; /* Number of ".stabs" read (if applicable) */
|
||
int n_types; /* Number of types */
|
||
int sz_strtab; /* Size of stringtable, (if applicable) */
|
||
};
|
||
|
||
#define OBJSTAT(objfile, expr) (objfile -> stats.expr)
|
||
#define OBJSTATS struct objstats stats
|
||
extern void print_objfile_statistics (void);
|
||
extern void print_symbol_bcache_statistics (void);
|
||
|
||
/* Number of entries in the minimal symbol hash table. */
|
||
#define MINIMAL_SYMBOL_HASH_SIZE 2039
|
||
|
||
/* Master structure for keeping track of each file from which
|
||
gdb reads symbols. There are several ways these get allocated: 1.
|
||
The main symbol file, symfile_objfile, set by the symbol-file command,
|
||
2. Additional symbol files added by the add-symbol-file command,
|
||
3. Shared library objfiles, added by ADD_SOLIB, 4. symbol files
|
||
for modules that were loaded when GDB attached to a remote system
|
||
(see remote-vx.c). */
|
||
|
||
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.
|
||
|
||
FIXME: There is a problem here if the objfile is reusable, and if
|
||
multiple users are to be supported. The problem is that the objfile
|
||
list is linked through a member of the objfile struct itself, which
|
||
is only valid for one gdb process. The list implementation needs to
|
||
be changed to something like:
|
||
|
||
struct list {struct list *next; struct objfile *objfile};
|
||
|
||
where the list structure is completely maintained separately within
|
||
each gdb process. */
|
||
|
||
struct objfile *next;
|
||
|
||
/* The object file's name, tilde-expanded and absolute.
|
||
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 if the objfile contains only
|
||
minimal symbols, e.g. the run time common symbols for SunOS4. */
|
||
|
||
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 */
|
||
|
||
/* A byte cache where we can stash arbitrary "chunks" of bytes that
|
||
will not change. */
|
||
|
||
struct bcache *psymbol_cache; /* Byte cache for partial syms */
|
||
struct bcache *macro_cache; /* Byte cache for macros */
|
||
|
||
/* Hash table for mapping symbol names to demangled names. Each
|
||
entry in the hash table is actually two consecutive strings,
|
||
both null-terminated; the first one is a mangled or linkage
|
||
name, and the second is the demangled name or just a zero byte
|
||
if the name doesn't demangle. */
|
||
struct htab *demangled_names_hash;
|
||
|
||
/* 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 not 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;
|
||
|
||
/* This is a hash table used to index the minimal symbols by name. */
|
||
|
||
struct minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE];
|
||
|
||
/* This hash table is used to index the minimal symbols by their
|
||
demangled names. */
|
||
|
||
struct minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE];
|
||
|
||
/* 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. */
|
||
|
||
void *md;
|
||
|
||
/* The file descriptor that was used to obtain the mmalloc descriptor
|
||
for this objfile. If we call mmalloc_detach with the malloc descriptor
|
||
we should then close this file descriptor. */
|
||
|
||
int mmfd;
|
||
|
||
/* 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;
|
||
|
||
/* The per-objfile information about the entry point, the scope (file/func)
|
||
containing the entry point, and the scope of the user's main() func. */
|
||
|
||
struct entry_info ei;
|
||
|
||
/* Information about stabs. Will be filled in with a dbx_symfile_info
|
||
struct by those readers that need it. */
|
||
|
||
struct dbx_symfile_info *sym_stab_info;
|
||
|
||
/* Hook for information for use by the symbol reader (currently used
|
||
for information shared by sym_init and sym_read). It is
|
||
typically a pointer to malloc'd memory. The symbol reader's finish
|
||
function is responsible for freeing the memory thusly allocated. */
|
||
|
||
void *sym_private;
|
||
|
||
/* Hook for target-architecture-specific information. This must
|
||
point to memory allocated on one of the obstacks in this objfile,
|
||
so that it gets freed automatically when reading a new object
|
||
file. */
|
||
|
||
void *obj_private;
|
||
|
||
/* Per objfile data-pointers required by other GDB modules. */
|
||
/* FIXME: kettenis/20030711: This mechanism could replace
|
||
sym_stab_info, sym_private and obj_private entirely. */
|
||
|
||
void **data;
|
||
unsigned num_data;
|
||
|
||
/* Set of relocation offsets to apply to each section.
|
||
Currently on the psymbol_obstack (which makes no sense, but I'm
|
||
not sure it's harming anything).
|
||
|
||
These offsets indicate that all symbols (including partial and
|
||
minimal symbols) which have been read have been relocated by this
|
||
much. Symbols which are yet to be read need to be relocated by
|
||
it. */
|
||
|
||
struct section_offsets *section_offsets;
|
||
int num_sections;
|
||
|
||
/* Indexes in the section_offsets array. These are initialized by the
|
||
*_symfile_offsets() family of functions (som_symfile_offsets,
|
||
xcoff_symfile_offsets, default_symfile_offsets). In theory they
|
||
should correspond to the section indexes used by bfd for the
|
||
current objfile. The exception to this for the time being is the
|
||
SOM version. */
|
||
|
||
int sect_index_text;
|
||
int sect_index_data;
|
||
int sect_index_bss;
|
||
int sect_index_rodata;
|
||
|
||
/* These pointers are used to locate the section table, which
|
||
among other things, is used to map pc addresses into sections.
|
||
SECTIONS points to the first entry in the table, and
|
||
SECTIONS_END points to the first location past the last entry
|
||
in the table. Currently the table is stored on the
|
||
psymbol_obstack (which makes no sense, but I'm not sure it's
|
||
harming anything). */
|
||
|
||
struct obj_section
|
||
*sections, *sections_end;
|
||
|
||
/* two auxiliary fields, used to hold the fp of separate symbol files */
|
||
FILE *auxf1, *auxf2;
|
||
|
||
/* Imported symbols */
|
||
ImportEntry *import_list;
|
||
int import_list_size;
|
||
|
||
/* Exported symbols */
|
||
ExportEntry *export_list;
|
||
int export_list_size;
|
||
|
||
/* Link to objfile that contains the debug symbols for this one.
|
||
One is loaded if this file has an debug link to an existing
|
||
debug file with the right checksum */
|
||
struct objfile *separate_debug_objfile;
|
||
|
||
/* If this is a separate debug object, this is used as a link to the
|
||
actual executable objfile. */
|
||
struct objfile *separate_debug_objfile_backlink;
|
||
|
||
/* Place to stash various statistics about this objfile */
|
||
OBJSTATS;
|
||
};
|
||
|
||
/* 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 its 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 */
|
||
|
||
/* When using mapped/remapped predigested gdb symbol information, we need
|
||
a flag that indicates that we have previously done an initial symbol
|
||
table read from this particular objfile. We can't just look for the
|
||
absence of any of the three symbol tables (msymbols, psymtab, symtab)
|
||
because if the file has no symbols for example, none of these will
|
||
exist. */
|
||
|
||
#define OBJF_SYMS (1 << 1) /* Have tried to read symbols */
|
||
|
||
/* When an object file has its functions reordered (currently Irix-5.2
|
||
shared libraries exhibit this behaviour), we will need an expensive
|
||
algorithm to locate a partial symtab or symtab via an address.
|
||
To avoid this penalty for normal object files, we use this flag,
|
||
whose setting is determined upon symbol table read in. */
|
||
|
||
#define OBJF_REORDERED (1 << 2) /* Functions are reordered */
|
||
|
||
/* Distinguish between an objfile for a shared library and a "vanilla"
|
||
objfile. (If not set, the objfile may still actually be a solib.
|
||
This can happen if the user created the objfile by using the
|
||
add-symbol-file command. GDB doesn't in that situation actually
|
||
check whether the file is a solib. Rather, the target's
|
||
implementation of the solib interface is responsible for setting
|
||
this flag when noticing solibs used by an inferior.) */
|
||
|
||
#define OBJF_SHARED (1 << 3) /* From a shared library */
|
||
|
||
/* User requested that this objfile be read in it's entirety. */
|
||
|
||
#define OBJF_READNOW (1 << 4) /* Immediate full read */
|
||
|
||
/* This objfile was created because the user explicitly caused it
|
||
(e.g., used the add-symbol-file command). This bit offers a way
|
||
for run_command to remove old objfile entries which are no longer
|
||
valid (i.e., are associated with an old inferior), but to preserve
|
||
ones that the user explicitly loaded via the add-symbol-file
|
||
command. */
|
||
|
||
#define OBJF_USERLOADED (1 << 5) /* User loaded */
|
||
|
||
/* 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;
|
||
|
||
/* The object file that contains the runtime common minimal symbols
|
||
for SunOS4. Note that this objfile has no associated BFD. */
|
||
|
||
extern struct objfile *rt_common_objfile;
|
||
|
||
/* When we need to allocate a new type, we need to know which type_obstack
|
||
to allocate the type on, since there is one for each objfile. The places
|
||
where types are allocated are deeply buried in function call hierarchies
|
||
which know nothing about objfiles, so rather than trying to pass a
|
||
particular objfile down to them, we just do an end run around them and
|
||
set current_objfile to be whatever objfile we expect to be using at the
|
||
time types are being allocated. For instance, when we start reading
|
||
symbols for a particular objfile, we set current_objfile to point to that
|
||
objfile, and when we are done, we set it back to NULL, to ensure that we
|
||
never put a type someplace other than where we are expecting to put it.
|
||
FIXME: Maybe we should review the entire type handling system and
|
||
see if there is a better way to avoid this problem. */
|
||
|
||
extern struct objfile *current_objfile;
|
||
|
||
/* All known objfiles are kept in a linked list. This points to the
|
||
root of this list. */
|
||
|
||
extern struct objfile *object_files;
|
||
|
||
/* Declarations for functions defined in objfiles.c */
|
||
|
||
extern struct objfile *allocate_objfile (bfd *, int);
|
||
|
||
extern int build_objfile_section_table (struct objfile *);
|
||
|
||
extern void terminate_minimal_symbol_table (struct objfile *objfile);
|
||
|
||
extern void put_objfile_before (struct objfile *, struct objfile *);
|
||
|
||
extern void objfile_to_front (struct objfile *);
|
||
|
||
extern void unlink_objfile (struct objfile *);
|
||
|
||
extern void free_objfile (struct objfile *);
|
||
|
||
extern struct cleanup *make_cleanup_free_objfile (struct objfile *);
|
||
|
||
extern void free_all_objfiles (void);
|
||
|
||
extern void objfile_relocate (struct objfile *, struct section_offsets *);
|
||
|
||
extern int have_partial_symbols (void);
|
||
|
||
extern int have_full_symbols (void);
|
||
|
||
/* This operation deletes all objfile entries that represent solibs that
|
||
weren't explicitly loaded by the user, via e.g., the add-symbol-file
|
||
command.
|
||
*/
|
||
extern void objfile_purge_solibs (void);
|
||
|
||
/* Functions for dealing with the minimal symbol table, really a misc
|
||
address<->symbol mapping for things we don't have debug symbols for. */
|
||
|
||
extern int have_minimal_symbols (void);
|
||
|
||
extern struct obj_section *find_pc_section (CORE_ADDR pc);
|
||
|
||
extern struct obj_section *find_pc_sect_section (CORE_ADDR pc,
|
||
asection * section);
|
||
|
||
extern int in_plt_section (CORE_ADDR, char *);
|
||
|
||
extern int is_in_import_list (char *, struct objfile *);
|
||
|
||
/* Keep a registry of per-objfile data-pointers required by other GDB
|
||
modules. */
|
||
|
||
extern const struct objfile_data *register_objfile_data (void);
|
||
extern void set_objfile_data (struct objfile *objfile,
|
||
const struct objfile_data *data, void *value);
|
||
extern void *objfile_data (struct objfile *objfile,
|
||
const struct objfile_data *data);
|
||
|
||
|
||
/* 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; (obj) != NULL; (obj) = (obj)->next)
|
||
|
||
#define ALL_OBJFILES_SAFE(obj,nxt) \
|
||
for ((obj) = object_files; \
|
||
(obj) != NULL? ((nxt)=(obj)->next,1) :0; \
|
||
(obj) = (nxt))
|
||
|
||
/* Traverse all symtabs in one objfile. */
|
||
|
||
#define ALL_OBJFILE_SYMTABS(objfile, s) \
|
||
for ((s) = (objfile) -> symtabs; (s) != NULL; (s) = (s) -> next)
|
||
|
||
/* Traverse all psymtabs in one objfile. */
|
||
|
||
#define ALL_OBJFILE_PSYMTABS(objfile, p) \
|
||
for ((p) = (objfile) -> psymtabs; (p) != NULL; (p) = (p) -> next)
|
||
|
||
/* Traverse all minimal symbols in one objfile. */
|
||
|
||
#define ALL_OBJFILE_MSYMBOLS(objfile, m) \
|
||
for ((m) = (objfile) -> msymbols; DEPRECATED_SYMBOL_NAME(m) != NULL; (m)++)
|
||
|
||
/* Traverse all symtabs in all objfiles. */
|
||
|
||
#define ALL_SYMTABS(objfile, s) \
|
||
ALL_OBJFILES (objfile) \
|
||
ALL_OBJFILE_SYMTABS (objfile, s)
|
||
|
||
/* Traverse all psymtabs in all objfiles. */
|
||
|
||
#define ALL_PSYMTABS(objfile, p) \
|
||
ALL_OBJFILES (objfile) \
|
||
ALL_OBJFILE_PSYMTABS (objfile, p)
|
||
|
||
/* Traverse all minimal symbols in all objfiles. */
|
||
|
||
#define ALL_MSYMBOLS(objfile, m) \
|
||
ALL_OBJFILES (objfile) \
|
||
ALL_OBJFILE_MSYMBOLS (objfile, m)
|
||
|
||
#define ALL_OBJFILE_OSECTIONS(objfile, osect) \
|
||
for (osect = objfile->sections; osect < objfile->sections_end; osect++)
|
||
|
||
#define ALL_OBJSECTIONS(objfile, osect) \
|
||
ALL_OBJFILES (objfile) \
|
||
ALL_OBJFILE_OSECTIONS (objfile, osect)
|
||
|
||
#define SECT_OFF_DATA(objfile) \
|
||
((objfile->sect_index_data == -1) \
|
||
? (internal_error (__FILE__, __LINE__, "sect_index_data not initialized"), -1) \
|
||
: objfile->sect_index_data)
|
||
|
||
#define SECT_OFF_RODATA(objfile) \
|
||
((objfile->sect_index_rodata == -1) \
|
||
? (internal_error (__FILE__, __LINE__, "sect_index_rodata not initialized"), -1) \
|
||
: objfile->sect_index_rodata)
|
||
|
||
#define SECT_OFF_TEXT(objfile) \
|
||
((objfile->sect_index_text == -1) \
|
||
? (internal_error (__FILE__, __LINE__, "sect_index_text not initialized"), -1) \
|
||
: objfile->sect_index_text)
|
||
|
||
/* Sometimes the .bss section is missing from the objfile, so we don't
|
||
want to die here. Let the users of SECT_OFF_BSS deal with an
|
||
uninitialized section index. */
|
||
#define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss
|
||
|
||
#endif /* !defined (OBJFILES_H) */
|