/* Definitions for symbol file management in GDB.
- Copyright (C) 1992-2013 Free Software Foundation, Inc.
+ Copyright (C) 1992-2017 Free Software Foundation, Inc.
This file is part of GDB.
#if !defined (OBJFILES_H)
#define OBJFILES_H
+#include "hashtab.h"
#include "gdb_obstack.h" /* For obstack internals. */
-#include "symfile.h" /* For struct psymbol_allocation_list. */
+#include "objfile-flags.h"
+#include "symfile.h"
#include "progspace.h"
#include "registry.h"
+#include "gdb_bfd.h"
+#include <vector>
struct bcache;
struct htab;
-struct symtab;
struct objfile_data;
+struct partial_symbol;
/* This structure maintains information on a per-objfile basis about the
"entry point" of the objfile, and the scope within which the entry point
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
+ have been built in the startup code, as we might get hopelessly
confused. However, we almost always have debugging information
available for main().
from user code don't go wandering off into the startup code. */
struct entry_info
- {
- /* The relocated value we should use for this objfile entry point. */
- CORE_ADDR entry_point;
+{
+ /* The unrelocated value we should use for this objfile entry point. */
+ CORE_ADDR entry_point;
+
+ /* The index of the section in which the entry point appears. */
+ int the_bfd_section_index;
- /* Set to 1 iff ENTRY_POINT contains a valid value. */
- unsigned entry_point_p : 1;
- };
+ /* Set to 1 iff ENTRY_POINT contains a valid value. */
+ unsigned entry_point_p : 1;
+
+ /* Set to 1 iff this object was initialized. */
+ unsigned initialized : 1;
+};
/* Sections in an objfile. The section offsets are stored in the
OBJFILE. */
struct obj_section
- {
- struct bfd_section *the_bfd_section; /* BFD section pointer */
+{
+ /* BFD section pointer */
+ struct bfd_section *the_bfd_section;
- /* 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;
+};
/* Relocation offset applied to S. */
#define obj_section_offset(s) \
- (((s)->objfile->section_offsets)->offsets[(s)->the_bfd_section->index])
+ (((s)->objfile->section_offsets)->offsets[gdb_bfd_section_index ((s)->objfile->obfd, (s)->the_bfd_section)])
/* The memory address of section S (vma + offset). */
#define obj_section_addr(s) \
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) */
- };
+{
+ /* Number of partial symbols read. */
+ int n_psyms = 0;
+
+ /* Number of full symbols read. */
+ int n_syms = 0;
+
+ /* Number of ".stabs" read (if applicable). */
+ int n_stabs = 0;
+
+ /* Number of types. */
+ int n_types = 0;
+
+ /* Size of stringtable, (if applicable). */
+ int sz_strtab = 0;
+};
#define OBJSTAT(objfile, expr) (objfile -> stats.expr)
#define OBJSTATS struct objstats stats
struct objfile_per_bfd_storage
{
+ objfile_per_bfd_storage ()
+ : minsyms_read (false)
+ {}
+
/* The storage has an obstack of its own. */
- struct obstack storage_obstack;
-
+ auto_obstack storage_obstack;
+
/* Byte cache for file names. */
- struct bcache *filename_cache;
+ bcache *filename_cache = NULL;
/* Byte cache for macros. */
- struct bcache *macro_cache;
-};
-/* 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). */
+ bcache *macro_cache = NULL;
-struct objfile
- {
+ /* The gdbarch associated with the BFD. Note that this gdbarch is
+ determined solely from BFD information, without looking at target
+ information. The gdbarch determined from a running target may
+ differ from this e.g. with respect to register types and names. */
- /* All struct objfile's are chained together by their next pointers.
- The program space field "objfiles" (frequently referenced via
- the macro "object_files") points to the first link in this
- chain. */
+ struct gdbarch *gdbarch = NULL;
- struct objfile *next;
+ /* 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. */
- /* The object file's name, tilde-expanded and absolute. This
- pointer is never NULL. This does not have to be freed; it is
- guaranteed to have a lifetime at least as long as the objfile. */
+ htab *demangled_names_hash = NULL;
- char *name;
+ /* 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. */
- CORE_ADDR addr_low;
+ entry_info ei {};
- /* Some flag bits for this objfile.
- The values are defined by OBJF_*. */
+ /* The name and language of any "main" found in this objfile. The
+ name can be NULL, which means that the information was not
+ recorded. */
- unsigned short flags;
+ const char *name_of_main = NULL;
+ enum language language_of_main = language_unknown;
- /* The program space associated with this objfile. */
+ /* 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
+ objfile_obstack for this file. */
- struct program_space *pspace;
+ minimal_symbol *msymbols = NULL;
+ int minimal_symbol_count = 0;
- /* 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. */
+ /* The number of minimal symbols read, before any minimal symbol
+ de-duplication is applied. Note in particular that this has only
+ a passing relationship with the actual size of the table above;
+ use minimal_symbol_count if you need the true size. */
- struct symtab *symtabs;
+ int n_minsyms = 0;
- /* Each objfile points to a linked list of partial symtabs derived from
- this file, one partial symtab structure for each compilation unit
- (source file). */
+ /* This is true if minimal symbols have already been read. Symbol
+ readers can use this to bypass minimal symbol reading. Also, the
+ minimal symbol table management code in minsyms.c uses this to
+ suppress new minimal symbols. You might think that MSYMBOLS or
+ MINIMAL_SYMBOL_COUNT could be used for this, but it is possible
+ for multiple readers to install minimal symbols into a given
+ per-BFD. */
- struct partial_symtab *psymtabs;
+ bool minsyms_read : 1;
- /* Map addresses to the entries of PSYMTABS. It would be more efficient to
- have a map per the whole process but ADDRMAP cannot selectively remove
- its items during FREE_OBJFILE. This mapping is already present even for
- PARTIAL_SYMTABs which still have no corresponding full SYMTABs read. */
+ /* This is a hash table used to index the minimal symbols by name. */
- struct addrmap *psymtabs_addrmap;
+ minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE] {};
- /* List of freed partial symtabs, available for re-use. */
+ /* This hash table is used to index the minimal symbols by their
+ demangled names. */
- struct partial_symtab *free_psymtabs;
+ minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE] {};
- /* The object file's BFD. Can be null if the objfile contains only
- minimal symbols, e.g. the run time common symbols for SunOS4. */
+ /* All the different languages of symbols found in the demangled
+ hash table. A flat/vector-based map is more efficient than a map
+ or hash table here, since this will only usually contain zero or
+ one entries. */
+ std::vector<enum language> demangled_hash_languages;
+};
- bfd *obfd;
+/* 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). */
- /* The per-BFD data. Note that this is treated specially if OBFD
- is NULL. */
+struct objfile
+{
+ objfile (bfd *, const char *, objfile_flags);
+ ~objfile ();
- struct objfile_per_bfd_storage *per_bfd;
+ DISABLE_COPY_AND_ASSIGN (objfile);
- /* The gdbarch associated with the BFD. Note that this gdbarch is
- determined solely from BFD information, without looking at target
- information. The gdbarch determined from a running target may
- differ from this e.g. with respect to register types and names. */
+ /* All struct objfile's are chained together by their next pointers.
+ The program space field "objfiles" (frequently referenced via
+ the macro "object_files") points to the first link in this chain. */
- struct gdbarch *gdbarch;
+ struct objfile *next = nullptr;
- /* The modification timestamp of the object file, as of the last time
- we read its symbols. */
+ /* The object file's original name as specified by the user,
+ made absolute, and tilde-expanded. However, it is not canonicalized
+ (i.e., it has not been passed through gdb_realpath).
+ This pointer is never NULL. This does not have to be freed; it is
+ guaranteed to have a lifetime at least as long as the objfile. */
- long mtime;
+ char *original_name = nullptr;
- /* Cached 32-bit CRC as computed by gnu_debuglink_crc32. CRC32 is valid
- iff CRC32_P. */
- unsigned long crc32;
- int crc32_p;
+ CORE_ADDR addr_low = 0;
- /* Obstack to hold objects that should be freed when we load a new symbol
- table from this object file. */
+ /* Some flag bits for this objfile. */
- struct obstack objfile_obstack;
+ objfile_flags flags;
- /* A byte cache where we can stash arbitrary "chunks" of bytes that
- will not change. */
+ /* The program space associated with this objfile. */
- struct psymbol_bcache *psymbol_cache; /* Byte cache for partial syms. */
+ struct program_space *pspace;
- /* 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;
+ /* List of compunits.
+ These are used to do symbol lookups and file/line-number lookups. */
- /* Vectors of all partial symbols read in from file. The actual data
- is stored in the objfile_obstack. */
+ struct compunit_symtab *compunit_symtabs = nullptr;
- struct psymbol_allocation_list global_psymbols;
- struct psymbol_allocation_list static_psymbols;
+ /* 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 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
- objfile_obstack for this file. */
+ struct partial_symtab *psymtabs = nullptr;
- struct minimal_symbol *msymbols;
- int minimal_symbol_count;
+ /* Map addresses to the entries of PSYMTABS. It would be more efficient to
+ have a map per the whole process but ADDRMAP cannot selectively remove
+ its items during FREE_OBJFILE. This mapping is already present even for
+ PARTIAL_SYMTABs which still have no corresponding full SYMTABs read. */
- /* This is a hash table used to index the minimal symbols by name. */
+ struct addrmap *psymtabs_addrmap = nullptr;
- struct minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE];
+ /* List of freed partial symtabs, available for re-use. */
- /* This hash table is used to index the minimal symbols by their
- demangled names. */
+ struct partial_symtab *free_psymtabs = nullptr;
- struct minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE];
+ /* The object file's BFD. Can be null if the objfile contains only
+ minimal symbols, e.g. the run time common symbols for SunOS4. */
- /* 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. */
+ bfd *obfd;
- const struct sym_fns *sf;
+ /* The per-BFD data. Note that this is treated specially if OBFD
+ is NULL. */
- /* 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 objfile_per_bfd_storage *per_bfd = nullptr;
- struct entry_info ei;
+ /* The modification timestamp of the object file, as of the last time
+ we read its symbols. */
- /* Per objfile data-pointers required by other GDB modules. */
+ long mtime = 0;
- REGISTRY_FIELDS;
+ /* Obstack to hold objects that should be freed when we load a new symbol
+ table from this object file. */
- /* Set of relocation offsets to apply to each section.
- The table is indexed by the_bfd_section->index, thus it is generally
- as large as the number of sections in the binary.
- The table is stored on the objfile_obstack.
+ struct obstack objfile_obstack {};
- 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. */
+ /* A byte cache where we can stash arbitrary "chunks" of bytes that
+ will not change. */
- struct section_offsets *section_offsets;
- int num_sections;
+ struct psymbol_bcache *psymbol_cache;
- /* 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. */
+ /* Map symbol addresses to the partial symtab that defines the
+ object at that address. */
- int sect_index_text;
- int sect_index_data;
- int sect_index_bss;
- int sect_index_rodata;
+ std::vector<std::pair<CORE_ADDR, partial_symtab *>> psymbol_map;
- /* 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. The table is stored on the objfile_obstack.
- There is no particular order to the sections in this table, and it
- only contains sections we care about (e.g. non-empty, SEC_ALLOC). */
+ /* Vectors of all partial symbols read in from file. The actual data
+ is stored in the objfile_obstack. */
- struct obj_section *sections, *sections_end;
+ std::vector<partial_symbol *> global_psymbols;
+ std::vector<partial_symbol *> static_psymbols;
- /* GDB allows to have debug symbols in separate object files. This is
- used by .gnu_debuglink, ELF build id note and Mach-O OSO.
- Although this is a tree structure, GDB only support one level
- (ie a separate debug for a separate debug is not supported). Note that
- separate debug object are in the main chain and therefore will be
- visited by ALL_OBJFILES & co iterators. Separate debug objfile always
- has a non-nul separate_debug_objfile_backlink. */
+ /* 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. */
- /* Link to the first separate debug object, if any. */
- struct objfile *separate_debug_objfile;
+ const struct sym_fns *sf = nullptr;
- /* If this is a separate debug object, this is used as a link to the
- actual executable objfile. */
- struct objfile *separate_debug_objfile_backlink;
-
- /* If this is a separate debug object, this is a link to the next one
- for the same executable objfile. */
- struct objfile *separate_debug_objfile_link;
+ /* Per objfile data-pointers required by other GDB modules. */
- /* Place to stash various statistics about this objfile. */
- OBJSTATS;
+ REGISTRY_FIELDS {};
- /* A linked list of symbols created when reading template types or
- function templates. These symbols are not stored in any symbol
- table, so we have to keep them here to relocate them
- properly. */
- struct symbol *template_symbols;
- };
+ /* Set of relocation offsets to apply to each section.
+ The table is indexed by the_bfd_section->index, thus it is generally
+ as large as the number of sections in the binary.
+ The table is stored on the objfile_obstack.
-/* Defines for the objfile flag word. */
+ 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. */
-/* 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. */
+ struct section_offsets *section_offsets = nullptr;
+ int num_sections = 0;
-#define OBJF_REORDERED (1 << 0) /* Functions are reordered */
+ /* 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.
-/* 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.) */
+ These are initialized to -1 so that we can later detect if they
+ are used w/o being properly assigned to. */
-#define OBJF_SHARED (1 << 1) /* From a shared library */
+ int sect_index_text = -1;
+ int sect_index_data = -1;
+ int sect_index_bss = -1;
+ int sect_index_rodata = -1;
-/* User requested that this objfile be read in it's entirety. */
-
-#define OBJF_READNOW (1 << 2) /* Immediate full read */
+ /* 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. The table is stored on the objfile_obstack. The
+ sections are indexed by the BFD section index; but the
+ structure data is only valid for certain sections
+ (e.g. non-empty, SEC_ALLOC). */
-/* 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. */
+ struct obj_section *sections = nullptr;
+ struct obj_section *sections_end = nullptr;
-#define OBJF_USERLOADED (1 << 3) /* User loaded */
+ /* GDB allows to have debug symbols in separate object files. This is
+ used by .gnu_debuglink, ELF build id note and Mach-O OSO.
+ Although this is a tree structure, GDB only support one level
+ (ie a separate debug for a separate debug is not supported). Note that
+ separate debug object are in the main chain and therefore will be
+ visited by ALL_OBJFILES & co iterators. Separate debug objfile always
+ has a non-nul separate_debug_objfile_backlink. */
-/* Set if we have tried to read partial symtabs for this objfile.
- This is used to allow lazy reading of partial symtabs. */
+ /* Link to the first separate debug object, if any. */
-#define OBJF_PSYMTABS_READ (1 << 4)
+ struct objfile *separate_debug_objfile = nullptr;
-/* Set if this is the main symbol file
- (as opposed to symbol file for dynamically loaded code). */
+ /* If this is a separate debug object, this is used as a link to the
+ actual executable objfile. */
-#define OBJF_MAINLINE (1 << 5)
+ struct objfile *separate_debug_objfile_backlink = nullptr;
-/* The object file that contains the runtime common minimal symbols
- for SunOS4. Note that this objfile has no associated BFD. */
+ /* If this is a separate debug object, this is a link to the next one
+ for the same executable objfile. */
-extern struct objfile *rt_common_objfile;
+ struct objfile *separate_debug_objfile_link = nullptr;
-/* Declarations for functions defined in objfiles.c */
+ /* Place to stash various statistics about this objfile. */
+
+ OBJSTATS;
+
+ /* A linked list of symbols created when reading template types or
+ function templates. These symbols are not stored in any symbol
+ table, so we have to keep them here to relocate them
+ properly. */
+
+ struct symbol *template_symbols = nullptr;
-extern struct objfile *allocate_objfile (bfd *, int);
+ /* Associate a static link (struct dynamic_prop *) to all blocks (struct
+ block *) that have one.
-extern struct gdbarch *get_objfile_arch (struct objfile *);
+ In the context of nested functions (available in Pascal, Ada and GNU C,
+ for instance), a static link (as in DWARF's DW_AT_static_link attribute)
+ for a function is a way to get the frame corresponding to the enclosing
+ function.
+
+ Very few blocks have a static link, so it's more memory efficient to
+ store these here rather than in struct block. Static links must be
+ allocated on the objfile's obstack. */
+ htab_t static_links {};
+};
+
+/* Declarations for functions defined in objfiles.c */
+
+extern struct gdbarch *get_objfile_arch (const struct objfile *);
extern int entry_point_address_query (CORE_ADDR *entry_p);
extern void build_objfile_section_table (struct objfile *);
-extern void terminate_minimal_symbol_table (struct objfile *objfile);
-
extern struct objfile *objfile_separate_debug_iterate (const struct objfile *,
const struct objfile *);
extern void put_objfile_before (struct objfile *, struct objfile *);
-extern void objfile_to_front (struct objfile *);
-
extern void add_separate_debug_objfile (struct objfile *, struct objfile *);
extern void unlink_objfile (struct objfile *);
-extern void free_objfile (struct objfile *);
-
extern void free_objfile_separate_debug (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 void objfile_relocate (struct objfile *, const struct section_offsets *);
extern void objfile_rebase (struct objfile *, CORE_ADDR);
extern int objfile_has_partial_symbols (struct objfile *objfile);
extern int have_full_symbols (void);
+extern void objfile_set_sym_fns (struct objfile *objfile,
+ const struct sym_fns *sf);
+
extern void objfiles_changed (void);
+extern int is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile);
+
+/* Return true if ADDRESS maps into one of the sections of a
+ OBJF_SHARED objfile of PSPACE and false otherwise. */
+
+extern int shared_objfile_contains_address_p (struct program_space *pspace,
+ CORE_ADDR address);
+
/* 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 struct obj_section *find_pc_section (CORE_ADDR pc);
-extern int in_plt_section (CORE_ADDR, char *);
+/* Return non-zero if PC is in a section called NAME. */
+extern int pc_in_section (CORE_ADDR, const char *);
+
+/* Return non-zero if PC is in a SVR4-style procedure linkage table
+ section. */
+
+static inline int
+in_plt_section (CORE_ADDR pc)
+{
+ return pc_in_section (pc, ".plt");
+}
/* Keep a registry of per-objfile data-pointers required by other GDB
modules. */
DECLARE_REGISTRY(objfile);
+/* In normal use, the section map will be rebuilt by find_pc_section
+ if objfiles have been added, removed or relocated since it was last
+ called. Calling inhibit_section_map_updates will inhibit this
+ behavior until resume_section_map_updates is called. If you call
+ inhibit_section_map_updates you must ensure that every call to
+ find_pc_section in the inhibited region relates to a section that
+ is already in the section map and has not since been removed or
+ relocated. */
+extern void inhibit_section_map_updates (struct program_space *pspace);
+
+/* Resume automatically rebuilding the section map as required. */
+extern void resume_section_map_updates (struct program_space *pspace);
+
+/* Version of the above suitable for use as a cleanup. */
+extern void resume_section_map_updates_cleanup (void *arg);
+
extern void default_iterate_over_objfiles_in_search_order
(struct gdbarch *gdbarch,
iterate_over_objfiles_in_search_order_cb_ftype *cb,
#define ALL_PSPACE_OBJFILES(ss, obj) \
for ((obj) = ss->objfiles; (obj) != NULL; (obj) = (obj)->next)
-#define ALL_PSPACE_OBJFILES_SAFE(ss, obj, nxt) \
- for ((obj) = ss->objfiles; \
- (obj) != NULL? ((nxt)=(obj)->next,1) :0; \
- (obj) = (nxt))
-
#define ALL_OBJFILES(obj) \
for ((obj) = current_program_space->objfiles; \
(obj) != NULL; \
/* Traverse all symtabs in one objfile. */
-#define ALL_OBJFILE_SYMTABS(objfile, s) \
- for ((s) = (objfile) -> symtabs; (s) != NULL; (s) = (s) -> next)
+#define ALL_OBJFILE_FILETABS(objfile, cu, s) \
+ ALL_OBJFILE_COMPUNITS (objfile, cu) \
+ ALL_COMPUNIT_FILETABS (cu, s)
-/* Traverse all primary symtabs in one objfile. */
+/* Traverse all compunits in one objfile. */
-#define ALL_OBJFILE_PRIMARY_SYMTABS(objfile, s) \
- ALL_OBJFILE_SYMTABS ((objfile), (s)) \
- if ((s)->primary)
+#define ALL_OBJFILE_COMPUNITS(objfile, cu) \
+ for ((cu) = (objfile) -> compunit_symtabs; (cu) != NULL; (cu) = (cu) -> next)
/* Traverse all minimal symbols in one objfile. */
-#define ALL_OBJFILE_MSYMBOLS(objfile, m) \
- for ((m) = (objfile) -> msymbols; SYMBOL_LINKAGE_NAME(m) != NULL; (m)++)
+#define ALL_OBJFILE_MSYMBOLS(objfile, m) \
+ for ((m) = (objfile)->per_bfd->msymbols; \
+ MSYMBOL_LINKAGE_NAME (m) != NULL; \
+ (m)++)
/* Traverse all symtabs in all objfiles in the current symbol
space. */
-#define ALL_SYMTABS(objfile, s) \
- ALL_OBJFILES (objfile) \
- ALL_OBJFILE_SYMTABS (objfile, s)
-
-#define ALL_PSPACE_SYMTABS(ss, objfile, s) \
- ALL_PSPACE_OBJFILES (ss, objfile) \
- ALL_OBJFILE_SYMTABS (objfile, s)
+#define ALL_FILETABS(objfile, ps, s) \
+ ALL_OBJFILES (objfile) \
+ ALL_OBJFILE_FILETABS (objfile, ps, s)
-/* Traverse all symtabs in all objfiles in the current program space,
- skipping included files (which share a blockvector with their
- primary symtab). */
+/* Traverse all compunits in all objfiles in the current program space. */
-#define ALL_PRIMARY_SYMTABS(objfile, s) \
+#define ALL_COMPUNITS(objfile, cu) \
ALL_OBJFILES (objfile) \
- ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s)
-
-#define ALL_PSPACE_PRIMARY_SYMTABS(pspace, objfile, s) \
- ALL_PSPACE_OBJFILES (ss, objfile) \
- ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s)
+ ALL_OBJFILE_COMPUNITS (objfile, cu)
/* Traverse all minimal symbols in all objfiles in the current symbol
space. */
ALL_OBJFILE_MSYMBOLS (objfile, m)
#define ALL_OBJFILE_OSECTIONS(objfile, osect) \
- for (osect = objfile->sections; osect < objfile->sections_end; osect++)
+ for (osect = objfile->sections; osect < objfile->sections_end; osect++) \
+ if (osect->the_bfd_section == NULL) \
+ { \
+ /* Nothing. */ \
+ } \
+ else
/* Traverse all obj_sections in all objfiles in the current program
space.
? ((objfile) = (objfile)->next, \
(objfile) != NULL ? (osect) = (objfile)->sections_end : 0) \
: 0)) \
- for ((osect) = (objfile)->sections; \
- (osect) < (objfile)->sections_end; \
- (osect)++)
+ ALL_OBJFILE_OSECTIONS (objfile, osect)
#define SECT_OFF_DATA(objfile) \
((objfile->sect_index_data == -1) \
void set_objfile_per_bfd (struct objfile *obj);
+/* Return canonical name for OBJFILE.
+ This is the real file name if the file has been opened.
+ Otherwise it is the original name supplied by the user. */
+
+const char *objfile_name (const struct objfile *objfile);
+
+/* Return the (real) file name of OBJFILE if the file has been opened,
+ otherwise return NULL. */
+
+const char *objfile_filename (const struct objfile *objfile);
+
+/* Return the name to print for OBJFILE in debugging messages. */
+
+extern const char *objfile_debug_name (const struct objfile *objfile);
+
+/* Return the name of the file format of OBJFILE if the file has been opened,
+ otherwise return NULL. */
+
+const char *objfile_flavour_name (struct objfile *objfile);
+
+/* Set the objfile's notion of the "main" name and language. */
+
+extern void set_objfile_main_name (struct objfile *objfile,
+ const char *name, enum language lang);
+
+extern void objfile_register_static_link
+ (struct objfile *objfile,
+ const struct block *block,
+ const struct dynamic_prop *static_link);
+
+extern const struct dynamic_prop *objfile_lookup_static_link
+ (struct objfile *objfile, const struct block *block);
+
#endif /* !defined (OBJFILES_H) */
projects / deliverable / binutils-gdb.git / blobdiff