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import gdb-1999-07-07 post reformat

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This commit is contained in:
Jason Molenda
1999-07-07 20:19:36 +00:00
parent 3a4b77d8be
commit c5aa993b1f
643 changed files with 69889 additions and 65773 deletions
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420
gdb/objfiles.h
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@@ -1,21 +1,22 @@
/* Definitions for symbol file management in GDB.
Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GDB.
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 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.
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. */
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
@@ -76,41 +77,41 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
To use this method, define your FRAME_CHAIN_VALID macro like:
#define FRAME_CHAIN_VALID(chain, thisframe) \
(chain != 0 \
&& !(inside_main_func ((thisframe)->pc)) \
&& !(inside_entry_func ((thisframe)->pc)))
#define 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;
/* 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. */
#define INVALID_ENTRY_POINT (~0) /* ~0 will not be in any file, we hope. */
CORE_ADDR entry_point;
/* Start (inclusive) and end (exclusive) of function containing the
entry point. */
#define INVALID_ENTRY_POINT (~0) /* ~0 will not be in any file, we hope. */
CORE_ADDR entry_func_lowpc;
CORE_ADDR entry_func_highpc;
/* Start (inclusive) and end (exclusive) of function containing the
entry point. */
/* Start (inclusive) and end (exclusive) of object file containing the
entry point. */
CORE_ADDR entry_file_lowpc;
CORE_ADDR entry_file_highpc;
CORE_ADDR entry_func_lowpc;
CORE_ADDR entry_func_highpc;
/* Start (inclusive) and end (exclusive) of the user code main() function. */
/* Start (inclusive) and end (exclusive) of object file containing the
entry point. */
CORE_ADDR main_func_lowpc;
CORE_ADDR main_func_highpc;
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. */
@@ -121,7 +122,7 @@ struct entry_info
#define INVALID_ENTRY_LOWPC (3)
#define INVALID_ENTRY_HIGHPC (1)
};
};
/* Sections in an objfile.
@@ -136,44 +137,47 @@ struct entry_info
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 */
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.
/* 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;
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 */
sec_ptr the_bfd_section; /* BFD section pointer */
/* Objfile this section is part of. */
struct objfile *objfile;
/* Objfile this section is part of. */
struct objfile *objfile;
/* True if this "overlay section" is mapped into an "overlay region". */
int ovly_mapped;
};
/* 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;
/* 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;
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
@@ -181,14 +185,15 @@ typedef struct {
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) */
};
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
@@ -204,195 +209,194 @@ extern void print_symbol_bcache_statistics PARAMS ((void));
(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.
/* 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:
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};
struct list {struct list *next; struct objfile *objfile};
where the list structure is completely maintained separately within
each gdb process. */
where the list structure is completely maintained separately within
each gdb process. */
struct objfile *next;
struct objfile *next;
/* The object file's name. Malloc'd; free it if you free this struct. */
/* The object file's name. Malloc'd; free it if you free this struct. */
char *name;
char *name;
/* TRUE if this objfile was created because the user explicitly caused
it (e.g., used the add-symbol-file command).
/* TRUE if this objfile was created because the user explicitly caused
it (e.g., used the add-symbol-file command).
*/
int user_loaded;
int user_loaded;
/* TRUE if this objfile was explicitly created to represent a solib.
/* TRUE if this objfile was explicitly created to represent a solib.
(If FALSE, the objfile may 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.)
(If FALSE, the objfile may 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.)
*/
int is_solib;
int is_solib;
/* Some flag bits for this objfile. */
/* Some flag bits for this objfile. */
unsigned short flags;
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. */
/* 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;
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). */
/* 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;
struct partial_symtab *psymtabs;
/* List of freed partial symtabs, available for re-use */
/* List of freed partial symtabs, available for re-use */
struct partial_symtab *free_psymtabs;
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. */
/* 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;
bfd *obfd;
/* The modification timestamp of the object file, as of the last time
we read its symbols. */
/* The modification timestamp of the object file, as of the last time
we read its symbols. */
long mtime;
long mtime;
/* Obstacks to hold objects that should be freed when we load a new symbol
table from this object file. */
/* 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 */
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. */
/* 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 psymbol_cache; /* Byte cache for partial syms */
/* Vectors of all partial symbols read in from file. The actual data
is stored in the psymbol_obstack. */
/* 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;
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. */
/* 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;
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). */
/* 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;
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. */
/* 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;
PTR 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. */
/* 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;
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. */
/* 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;
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. */
/* 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;
struct entry_info ei;
/* Information about stabs. Will be filled in with a dbx_symfile_info
struct by those readers that need it. */
/* 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;
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. */
/* 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. */
PTR sym_private;
PTR 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. */
/* 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. */
PTR obj_private;
PTR obj_private;
/* 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).
/* 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. */
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;
struct section_offsets *section_offsets;
int num_sections;
/* set of section begin and end addresses used to map pc addresses
into sections. Currently on the psymbol_obstack (which makes no
sense, but I'm not sure it's harming anything). */
/* set of section begin and end addresses used to map pc addresses
into sections. Currently on the psymbol_obstack (which makes no
sense, but I'm not sure it's harming anything). */
struct obj_section
*sections,
*sections_end;
struct obj_section
*sections, *sections_end;
/* two auxiliary fields, used to hold the fp of separate symbol files */
FILE *auxf1, *auxf2;
/* two auxiliary fields, used to hold the fp of separate symbol files */
FILE *auxf1, *auxf2;
/* Imported symbols */
ImportEntry * import_list;
int import_list_size;
/* Imported symbols */
ImportEntry *import_list;
int import_list_size;
/* Exported symbols */
ExportEntry * export_list;
int export_list_size;
/* Exported symbols */
ExportEntry *export_list;
int export_list_size;
/* Place to stash various statistics about this objfile */
OBJSTATS;
};
/* Place to stash various statistics about this objfile */
OBJSTATS;
};
/* Defines for the objfile flag word. */
@@ -421,11 +425,11 @@ struct objfile
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. */
#define OBJF_SHARED (1 << 3) /* From a shared library */
#define OBJF_SHARED (1 << 3) /* From a shared library */
/* The object file that the main symbol table was loaded from (e.g. the
argument to the "symbol-file" or "file" command). */
@@ -460,7 +464,7 @@ extern struct objfile *object_files;
/* Declarations for functions defined in objfiles.c */
extern struct objfile *
allocate_objfile PARAMS ((bfd *, int, int, int));
allocate_objfile PARAMS ((bfd *, int, int, int));
extern int
build_objfile_section_table PARAMS ((struct objfile *));
@@ -488,7 +492,7 @@ have_full_symbols PARAMS ((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 PARAMS ((void));
@@ -499,10 +503,10 @@ extern int
have_minimal_symbols PARAMS ((void));
extern struct obj_section *
find_pc_section PARAMS((CORE_ADDR pc));
find_pc_section PARAMS ((CORE_ADDR pc));
extern struct obj_section *
find_pc_sect_section PARAMS((CORE_ADDR pc, asection *section));
find_pc_sect_section PARAMS ((CORE_ADDR pc, asection * section));
extern int
in_plt_section PARAMS ((CORE_ADDR, char *));
@@ -559,4 +563,4 @@ in_plt_section PARAMS ((CORE_ADDR, char *));
ALL_OBJFILES (objfile) \
ALL_OBJFILE_OSECTIONS (objfile, osect)
#endif /* !defined (OBJFILES_H) */
#endif /* !defined (OBJFILES_H) */