diff options
Diffstat (limited to 'contrib/gdb/gdb/symfile.h')
| -rw-r--r-- | contrib/gdb/gdb/symfile.h | 354 |
1 files changed, 191 insertions, 163 deletions
diff --git a/contrib/gdb/gdb/symfile.h b/contrib/gdb/gdb/symfile.h index 0363e1e..39eb308 100644 --- a/contrib/gdb/gdb/symfile.h +++ b/contrib/gdb/gdb/symfile.h @@ -1,22 +1,24 @@ /* Definitions for reading symbol files into GDB. - Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996 + Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, + 2000, 2001 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 (SYMFILE_H) #define SYMFILE_H @@ -31,270 +33,296 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ it allows us to throw away duplicate psymbols and set all pointers to the single saved instance. */ -struct psymbol_allocation_list { +struct psymbol_allocation_list + { - /* Pointer to beginning of dynamically allocated array of pointers to - partial symbols. The array is dynamically expanded as necessary to - accommodate more pointers. */ + /* Pointer to beginning of dynamically allocated array of pointers to + partial symbols. The array is dynamically expanded as necessary to + accommodate more pointers. */ - struct partial_symbol **list; + struct partial_symbol **list; - /* Pointer to next available slot in which to store a pointer to a partial - symbol. */ + /* Pointer to next available slot in which to store a pointer to a partial + symbol. */ - struct partial_symbol **next; + struct partial_symbol **next; - /* Number of allocated pointer slots in current dynamic array (not the - number of bytes of storage). The "next" pointer will always point - somewhere between list[0] and list[size], and when at list[size] the - array will be expanded on the next attempt to store a pointer. */ + /* Number of allocated pointer slots in current dynamic array (not the + number of bytes of storage). The "next" pointer will always point + somewhere between list[0] and list[size], and when at list[size] the + array will be expanded on the next attempt to store a pointer. */ - int size; + int size; + }; + +/* Define an array of addresses to accommodate non-contiguous dynamic + loading of modules. This is for use when entering commands, so we + can keep track of the section names until we read the file and + can map them to bfd sections. This structure is also used by + solib.c to communicate the section addresses in shared objects to + symbol_file_add (). */ + +#define MAX_SECTIONS 64 +struct section_addr_info +{ + /* Sections whose names are file format dependent. */ + struct other_sections + { + CORE_ADDR addr; + char *name; + int sectindex; + } other[MAX_SECTIONS]; }; /* Structure to keep track of symbol reading functions for various object file types. */ -struct sym_fns { +struct sym_fns + { - /* BFD flavour that we handle, or (as a special kludge, see xcoffread.c, - (enum bfd_flavour)-1 for xcoff). */ + /* BFD flavour that we handle, or (as a special kludge, see xcoffread.c, + (enum bfd_flavour)-1 for xcoff). */ - enum bfd_flavour sym_flavour; + enum bfd_flavour sym_flavour; - /* Initializes anything that is global to the entire symbol table. It is - called during symbol_file_add, when we begin debugging an entirely new - program. */ + /* Initializes anything that is global to the entire symbol table. It is + called during symbol_file_add, when we begin debugging an entirely new + program. */ - void (*sym_new_init) PARAMS ((struct objfile *)); + void (*sym_new_init) (struct objfile *); - /* Reads any initial information from a symbol file, and initializes the - struct sym_fns SF in preparation for sym_read(). It is called every - time we read a symbol file for any reason. */ + /* Reads any initial information from a symbol file, and initializes the + struct sym_fns SF in preparation for sym_read(). It is called every + time we read a symbol file for any reason. */ - void (*sym_init) PARAMS ((struct objfile *)); + void (*sym_init) (struct objfile *); - /* 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. - 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. */ + /* sym_read (objfile, mainline) + Reads a symbol file into a psymtab (or possibly a symtab). + OBJFILE is the objfile struct for the file we are reading. + 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 *, struct section_offsets *, int)); + void (*sym_read) (struct objfile *, 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 *)); + /* Called when we are finished with an objfile. Should do all cleanup + that is specific to the object file format for the particular 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. */ + void (*sym_finish) (struct objfile *); - struct section_offsets *(*sym_offsets) PARAMS ((struct objfile *, CORE_ADDR)); + /* 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. */ - /* 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. */ + void (*sym_offsets) (struct objfile *, struct section_addr_info *); - struct sym_fns *next; + /* 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. */ -}; + struct sym_fns *next; + + }; /* The default version of sym_fns.sym_offsets for readers that don't do anything special. */ -extern struct section_offsets * -default_symfile_offsets PARAMS ((struct objfile *objfile, CORE_ADDR addr)); +extern void +default_symfile_offsets (struct objfile *objfile, struct section_addr_info *); extern void -extend_psymbol_list PARAMS ((struct psymbol_allocation_list *, - struct objfile *)); +extend_psymbol_list (struct psymbol_allocation_list *, struct objfile *); /* Add any kind of symbol to a psymbol_allocation_list. */ /* #include "demangle.h" */ extern void -add_psymbol_to_list PARAMS ((char *, int, namespace_enum, enum address_class, - struct psymbol_allocation_list *, long, CORE_ADDR, - enum language, struct objfile *)); +add_psymbol_to_list (char *, int, namespace_enum, enum address_class, + struct psymbol_allocation_list *, long, CORE_ADDR, + enum language, struct objfile *); extern void -add_psymbol_with_dem_name_to_list PARAMS ((char *, int, char *, int, namespace_enum, - enum address_class, - struct psymbol_allocation_list *, - long, CORE_ADDR, - enum language, struct objfile *)); +add_psymbol_with_dem_name_to_list (char *, int, char *, int, namespace_enum, + enum address_class, + struct psymbol_allocation_list *, + long, CORE_ADDR, + enum language, struct objfile *); -extern void init_psymbol_list PARAMS ((struct objfile *, int)); +extern void init_psymbol_list (struct objfile *, int); -extern void -sort_pst_symbols PARAMS ((struct partial_symtab *)); +extern void sort_pst_symbols (struct partial_symtab *); -extern struct symtab * -allocate_symtab PARAMS ((char *, struct objfile *)); +extern struct symtab *allocate_symtab (char *, struct objfile *); -extern int -free_named_symtabs PARAMS ((char *)); +extern int free_named_symtabs (char *); -extern void -fill_in_vptr_fieldno PARAMS ((struct type *)); +extern void fill_in_vptr_fieldno (struct type *); -extern void -add_symtab_fns PARAMS ((struct sym_fns *)); +extern void add_symtab_fns (struct sym_fns *); -extern void -init_entry_point_info PARAMS ((struct objfile *)); +extern void init_entry_point_info (struct objfile *); extern void -syms_from_objfile PARAMS ((struct objfile *, CORE_ADDR, int, int)); +syms_from_objfile (struct objfile *, struct section_addr_info *, int, int); + +extern void new_symfile_objfile (struct objfile *, int, int); + +extern struct objfile *symbol_file_add (char *, int, + struct section_addr_info *, int, int); + +/* Build (allocate and populate) a section_addr_info struct from + an existing section table. */ + +struct section_table; +extern struct section_addr_info * +build_section_addr_info_from_section_table (const struct section_table *start, + const struct section_table *end); + +/* Free all memory allocated by build_section_addr_info_from_section_table. */ extern void -new_symfile_objfile PARAMS ((struct objfile *, int, int)); +free_section_addr_info (struct section_addr_info *); -extern struct partial_symtab * -start_psymtab_common PARAMS ((struct objfile *, struct section_offsets *, - char *, CORE_ADDR, - struct partial_symbol **, - struct partial_symbol **)); + +extern struct partial_symtab *start_psymtab_common (struct objfile *, + struct section_offsets *, + char *, CORE_ADDR, + struct partial_symbol **, + struct partial_symbol **); /* Sorting your symbols for fast lookup or alphabetical printing. */ -extern void -sort_block_syms PARAMS ((struct block *)); +extern void sort_block_syms (struct block *); -extern void -sort_symtab_syms PARAMS ((struct symtab *)); +extern void sort_symtab_syms (struct symtab *); /* Make a copy of the string at PTR with SIZE characters in the symbol obstack (and add a null character at the end in the copy). Returns the address of the copy. */ -extern char * -obsavestring PARAMS ((char *, int, struct obstack *)); +extern char *obsavestring (char *, int, struct obstack *); /* Concatenate strings S1, S2 and S3; return the new string. Space is found in the symbol_obstack. */ -extern char * -obconcat PARAMS ((struct obstack *obstackp, const char *, const char *, - const char *)); +extern char *obconcat (struct obstack *obstackp, const char *, const char *, + const char *); /* Variables */ -/* whether to auto load solibs at startup time: 0/1. - - On all platforms, 0 means "don't auto load". +/* If non-zero, shared library symbols will be added automatically + when the inferior is created, new libraries are loaded, or when + attaching to the inferior. This is almost always what users will + want to have happen; but for very large programs, the startup time + will be excessive, and so if this is a problem, the user can clear + this flag and then add the shared library symbols as needed. Note + that there is a potential for confusion, since if the shared + library symbols are not loaded, commands like "info fun" will *not* + report all the functions that are actually present. */ - On HP-UX, > 0 means a threshhold, in megabytes, of symbol table which will - be auto loaded. When the cumulative size of solib symbol table exceeds - this threshhold, solibs' symbol tables will not be loaded. +extern int auto_solib_add; - On other platforms, > 0 means, "always auto load". - */ +/* For systems that support it, a threshold size in megabytes. If + automatically adding a new library's symbol table to those already + known to the debugger would cause the total shared library symbol + size to exceed this threshhold, then the shlib's symbols are not + added. The threshold is ignored if the user explicitly asks for a + shlib to be added, such as when using the "sharedlibrary" + command. */ -extern int auto_solib_add; +extern int auto_solib_limit; /* From symfile.c */ -extern CORE_ADDR -entry_point_address PARAMS ((void)); +extern CORE_ADDR entry_point_address (void); -extern struct partial_symtab * -allocate_psymtab PARAMS ((char *, struct objfile *)); +extern struct partial_symtab *allocate_psymtab (char *, struct objfile *); -extern void -discard_psymtab PARAMS ((struct partial_symtab *)); +extern void discard_psymtab (struct partial_symtab *); -extern void find_lowest_section PARAMS ((bfd *, asection *, PTR)); +extern void find_lowest_section (bfd *, asection *, PTR); -extern bfd * symfile_bfd_open PARAMS ((char *)); +extern bfd *symfile_bfd_open (char *); -/* Remote targets may wish to use this as their load function. */ -extern void generic_load PARAMS ((char *name, int from_tty)); +extern int get_section_index (struct objfile *, char *); /* Utility functions for overlay sections: */ -extern int overlay_debugging; +extern enum overlay_debugging_state { + ovly_off, + ovly_on, + ovly_auto +} overlay_debugging; extern int overlay_cache_invalid; /* return the "mapped" overlay section containing the PC */ -extern asection * -find_pc_mapped_section PARAMS ((CORE_ADDR)); +extern asection *find_pc_mapped_section (CORE_ADDR); /* return any overlay section containing the PC (even in its LMA region) */ -extern asection * -find_pc_overlay PARAMS ((CORE_ADDR)); +extern asection *find_pc_overlay (CORE_ADDR); /* return true if the section is an overlay */ -extern int -section_is_overlay PARAMS ((asection *)); +extern int section_is_overlay (asection *); /* return true if the overlay section is currently "mapped" */ -extern int -section_is_mapped PARAMS ((asection *)); +extern int section_is_mapped (asection *); /* return true if pc belongs to section's VMA */ -extern CORE_ADDR -pc_in_mapped_range PARAMS ((CORE_ADDR, asection *)); +extern CORE_ADDR pc_in_mapped_range (CORE_ADDR, asection *); /* return true if pc belongs to section's LMA */ -extern CORE_ADDR -pc_in_unmapped_range PARAMS ((CORE_ADDR, asection *)); +extern CORE_ADDR pc_in_unmapped_range (CORE_ADDR, asection *); /* map an address from a section's LMA to its VMA */ -extern CORE_ADDR -overlay_mapped_address PARAMS ((CORE_ADDR, asection *)); +extern CORE_ADDR overlay_mapped_address (CORE_ADDR, asection *); /* map an address from a section's VMA to its LMA */ -extern CORE_ADDR -overlay_unmapped_address PARAMS ((CORE_ADDR, asection *)); +extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, asection *); /* convert an address in an overlay section (force into VMA range) */ -extern CORE_ADDR -symbol_overlayed_address PARAMS ((CORE_ADDR, asection *)); +extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *); + +/* Load symbols from a file. */ +extern void symbol_file_add_main (char *args, int from_tty); + +/* Clear GDB symbol tables. */ +extern void symbol_file_clear (int from_tty); /* From dwarfread.c */ extern void -dwarf_build_psymtabs PARAMS ((struct objfile *, struct section_offsets *, int, - file_ptr, unsigned int, file_ptr, unsigned int)); +dwarf_build_psymtabs (struct objfile *, int, file_ptr, unsigned int, + file_ptr, unsigned int); /* From dwarf2read.c */ -extern int dwarf2_has_info PARAMS ((bfd *abfd)); +extern int dwarf2_has_info (bfd * abfd); + +extern void dwarf2_build_psymtabs (struct objfile *, int); +extern void dwarf2_build_frame_info (struct objfile *); -extern void dwarf2_build_psymtabs PARAMS ((struct objfile *, - struct section_offsets *, - int)); /* From mdebugread.c */ /* Hack to force structures to exist before use in parameter list. */ struct ecoff_debug_hack -{ - struct ecoff_debug_swap *a; - struct ecoff_debug_info *b; -}; + { + struct ecoff_debug_swap *a; + struct ecoff_debug_info *b; + }; extern void -mdebug_build_psymtabs PARAMS ((struct objfile *, - const struct ecoff_debug_swap *, - struct ecoff_debug_info *, - struct section_offsets *)); +mdebug_build_psymtabs (struct objfile *, + const struct ecoff_debug_swap *, + struct ecoff_debug_info *); extern void -elfmdebug_build_psymtabs PARAMS ((struct objfile *, - const struct ecoff_debug_swap *, - asection *, - struct section_offsets *)); +elfmdebug_build_psymtabs (struct objfile *, + const struct ecoff_debug_swap *, asection *); -#endif /* !defined(SYMFILE_H) */ +#endif /* !defined(SYMFILE_H) */ |
