/* Symbol table definitions for GDB.
- Copyright 1986, 89, 91, 92, 93, 94, 95, 96, 1998
- Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
+ Foundation, Inc.
-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 file is part of GDB.
-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 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.
-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. */
+ 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 (SYMTAB_H)
#define SYMTAB_H 1
-/* Some definitions and declarations to go with use of obstacks. */
-
-#include "obstack.h"
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-#include "bcache.h"
+/* Opaque declarations. */
+struct obstack;
/* Don't do this; it means that if some .o's are compiled with GNU C
and some are not (easy to do accidentally the way we configure
#if 0 && defined(__GNUC__) && !defined(BYTE_BITFIELD)
#define BYTE_BITFIELD :8;
#else
-#define BYTE_BITFIELD /*nothing*/
+#define BYTE_BITFIELD /*nothing */
#endif
/* Define a structure for the information that is common to all symbol types,
target byte order, e.g. LOC_CONST_BYTES). */
union
- {
- /* The fact that this is a long not a LONGEST mainly limits the
- range of a LOC_CONST. Since LOC_CONST_BYTES exists, I'm not
- sure that is a big deal. */
- long ivalue;
+ {
+ /* The fact that this is a long not a LONGEST mainly limits the
+ range of a LOC_CONST. Since LOC_CONST_BYTES exists, I'm not
+ sure that is a big deal. */
+ long ivalue;
- struct block *block;
+ struct block *block;
- char *bytes;
+ char *bytes;
- CORE_ADDR address;
+ CORE_ADDR address;
- /* for opaque typedef struct chain */
+ /* for opaque typedef struct chain */
- struct symbol *chain;
- }
+ struct symbol *chain;
+ }
value;
/* Since one and only one language can apply, wrap the language specific
information inside a union. */
union
+ {
+ struct cplus_specific /* For C++ */
+ /* and Java */
+ {
+ char *demangled_name;
+ }
+ cplus_specific;
+ struct objc_specific
{
- struct cplus_specific /* For C++ */
- /* and Java */
- {
- char *demangled_name;
- } cplus_specific;
- struct chill_specific /* For Chill */
- {
- char *demangled_name;
- } chill_specific;
- } language_specific;
+ char *demangled_name;
+ }
+ objc_specific;
+ }
+ language_specific;
/* Record the source code language that applies to this symbol.
This is used to select one of the fields from the language specific
asection *bfd_section;
};
-extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *));
+extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *);
+
+/* Note that all the following SYMBOL_* macros are used with the
+ SYMBOL argument being either a partial symbol, a minimal symbol or
+ a full symbol. All three types have a ginfo field. In particular
+ the SYMBOL_INIT_LANGUAGE_SPECIFIC, SYMBOL_INIT_DEMANGLED_NAME,
+ SYMBOL_DEMANGLED_NAME macros cannot be entirely substituted by
+ functions, unless the callers are changed to pass in the ginfo
+ field only, instead of the SYMBOL parameter. */
#define SYMBOL_NAME(symbol) (symbol)->ginfo.name
#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue
#define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \
(symbol)->ginfo.language_specific.cplus_specific.demangled_name
-/* Macro that initializes the language dependent portion of a symbol
+/* Initializes the language dependent portion of a symbol
depending upon the language for the symbol. */
+#define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \
+ (symbol_init_language_specific (&(symbol)->ginfo, (language)))
+extern void symbol_init_language_specific (struct general_symbol_info *symbol,
+ enum language language);
+
+#define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \
+ (symbol_init_demangled_name (&symbol->ginfo, (obstack)))
+extern void symbol_init_demangled_name (struct general_symbol_info *symbol,
+ struct obstack *obstack);
-#define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \
- do { \
- SYMBOL_LANGUAGE (symbol) = language; \
- if (SYMBOL_LANGUAGE (symbol) == language_cplus \
- || SYMBOL_LANGUAGE (symbol) == language_java \
- ) \
- { \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
- } \
- else if (SYMBOL_LANGUAGE (symbol) == language_chill) \
- { \
- SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
- } \
- else \
- { \
- memset (&(symbol)->ginfo.language_specific, 0, \
- sizeof ((symbol)->ginfo.language_specific)); \
- } \
- } while (0)
-
-/* Macro that attempts to initialize the demangled name for a symbol,
- based on the language of that symbol. If the language is set to
- language_auto, it will attempt to find any demangling algorithm
- that works and then set the language appropriately. If no demangling
- of any kind is found, the language is set back to language_unknown,
- so we can avoid doing this work again the next time we encounter
- the symbol. Any required space to store the name is obtained from the
- specified obstack. */
-
-#define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \
- do { \
- char *demangled = NULL; \
- if (SYMBOL_LANGUAGE (symbol) == language_cplus \
- || SYMBOL_LANGUAGE (symbol) == language_auto) \
- { \
- demangled = \
- cplus_demangle (SYMBOL_NAME (symbol), DMGL_PARAMS | DMGL_ANSI);\
- if (demangled != NULL) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_cplus; \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
- obsavestring (demangled, strlen (demangled), (obstack)); \
- free (demangled); \
- } \
- else \
- { \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
- } \
- } \
- if (SYMBOL_LANGUAGE (symbol) == language_java) \
- { \
- demangled = \
- cplus_demangle (SYMBOL_NAME (symbol), \
- DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); \
- if (demangled != NULL) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_java; \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
- obsavestring (demangled, strlen (demangled), (obstack)); \
- free (demangled); \
- } \
- else \
- { \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
- } \
- } \
- if (demangled == NULL \
- && (SYMBOL_LANGUAGE (symbol) == language_chill \
- || SYMBOL_LANGUAGE (symbol) == language_auto)) \
- { \
- demangled = \
- chill_demangle (SYMBOL_NAME (symbol)); \
- if (demangled != NULL) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_chill; \
- SYMBOL_CHILL_DEMANGLED_NAME (symbol) = \
- obsavestring (demangled, strlen (demangled), (obstack)); \
- free (demangled); \
- } \
- else \
- { \
- SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
- } \
- } \
- if (SYMBOL_LANGUAGE (symbol) == language_auto) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_unknown; \
- } \
- } while (0)
-
-/* Macro that returns the demangled name for a symbol based on the language
- for that symbol. If no demangled name exists, returns NULL. */
-
-#define SYMBOL_DEMANGLED_NAME(symbol) \
- (SYMBOL_LANGUAGE (symbol) == language_cplus \
- || SYMBOL_LANGUAGE (symbol) == language_java \
- ? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \
- : (SYMBOL_LANGUAGE (symbol) == language_chill \
- ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \
- : NULL))
-
-#define SYMBOL_CHILL_DEMANGLED_NAME(symbol) \
- (symbol)->ginfo.language_specific.chill_specific.demangled_name
+/* Return the demangled name for a symbol based on the language for
+ that symbol. If no demangled name exists, return NULL. */
+#define SYMBOL_DEMANGLED_NAME(symbol) \
+ (symbol_demangled_name (&(symbol)->ginfo))
+extern char *symbol_demangled_name (struct general_symbol_info *symbol);
+
+#define SYMBOL_OBJC_DEMANGLED_NAME(symbol) \
+ (symbol)->ginfo.language_specific.objc_specific.demangled_name
/* Macro that returns the "natural source name" of a symbol. In C++ this is
the "demangled" form of the name if demangle is on and the "mangled" form
(STREQ (SYMBOL_NAME (symbol), (name)) \
|| (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
&& strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0))
-
+
/* Macro that tests a symbol for an re-match against the last compiled regular
expression. First test the unencoded name, then look for and test a C++
encoded name if it exists.
(re_exec (SYMBOL_NAME (symbol)) != 0 \
|| (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
&& re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0))
-
+
/* Define a simple structure used to hold some very basic information about
all defined global symbols (text, data, bss, abs, etc). The only required
information is the general_symbol_info.
supplies. */
enum minimal_symbol_type
- {
- mst_unknown = 0, /* Unknown type, the default */
- mst_text, /* Generally executable instructions */
- mst_data, /* Generally initialized data */
- mst_bss, /* Generally uninitialized data */
- mst_abs, /* Generally absolute (nonrelocatable) */
- /* GDB uses mst_solib_trampoline for the start address of a shared
- library trampoline entry. Breakpoints for shared library functions
- are put there if the shared library is not yet loaded.
- After the shared library is loaded, lookup_minimal_symbol will
- prefer the minimal symbol from the shared library (usually
- a mst_text symbol) over the mst_solib_trampoline symbol, and the
- breakpoints will be moved to their true address in the shared
- library via breakpoint_re_set. */
- mst_solib_trampoline, /* Shared library trampoline code */
- /* For the mst_file* types, the names are only guaranteed to be unique
- within a given .o file. */
- mst_file_text, /* Static version of mst_text */
- mst_file_data, /* Static version of mst_data */
- mst_file_bss /* Static version of mst_bss */
- } type BYTE_BITFIELD;
+ {
+ mst_unknown = 0, /* Unknown type, the default */
+ mst_text, /* Generally executable instructions */
+ mst_data, /* Generally initialized data */
+ mst_bss, /* Generally uninitialized data */
+ mst_abs, /* Generally absolute (nonrelocatable) */
+ /* GDB uses mst_solib_trampoline for the start address of a shared
+ library trampoline entry. Breakpoints for shared library functions
+ are put there if the shared library is not yet loaded.
+ After the shared library is loaded, lookup_minimal_symbol will
+ prefer the minimal symbol from the shared library (usually
+ a mst_text symbol) over the mst_solib_trampoline symbol, and the
+ breakpoints will be moved to their true address in the shared
+ library via breakpoint_re_set. */
+ mst_solib_trampoline, /* Shared library trampoline code */
+ /* For the mst_file* types, the names are only guaranteed to be unique
+ within a given .o file. */
+ mst_file_text, /* Static version of mst_text */
+ mst_file_data, /* Static version of mst_data */
+ mst_file_bss /* Static version of mst_bss */
+ }
+ type BYTE_BITFIELD;
+
+ /* Minimal symbols with the same hash key are kept on a linked
+ list. This is the link. */
+
+ struct minimal_symbol *hash_next;
+
+ /* Minimal symbols are stored in two different hash tables. This is
+ the `next' pointer for the demangled hash table. */
+
+ struct minimal_symbol *demangled_hash_next;
};
#define MSYMBOL_INFO(msymbol) (msymbol)->info
#define MSYMBOL_TYPE(msymbol) (msymbol)->type
-
\f
+
+
/* All of the name-scope contours of the program
are represented by `struct block' objects.
All of these objects are pointed to by the blockvector.
unsigned char gcc_compile_flag;
+ /* The symbols for this block are either in a simple linear list or
+ in a simple hashtable. Blocks which correspond to a function
+ (which have a list of symbols corresponding to arguments) use
+ a linear list, as do some older symbol readers (currently only
+ mdebugread and dstread). Other blocks are hashed.
+
+ The hashtable uses the same hash function as the minsym hashtables,
+ found in minsyms.c:minsym_hash_iw. Symbols are hashed based on
+ their demangled name if appropriate, and on their name otherwise.
+ The hash function ignores space, and stops at the beginning of the
+ argument list if any.
+
+ The table is laid out in NSYMS/5 buckets and symbols are chained via
+ their hash_next field. */
+
+ /* If this is really a hashtable of the symbols, this flag is 1. */
+
+ unsigned char hashtable;
+
/* Number of local symbols. */
int nsyms;
#define BLOCK_START(bl) (bl)->startaddr
#define BLOCK_END(bl) (bl)->endaddr
-#define BLOCK_NSYMS(bl) (bl)->nsyms
-#define BLOCK_SYM(bl, n) (bl)->sym[n]
#define BLOCK_FUNCTION(bl) (bl)->function
#define BLOCK_SUPERBLOCK(bl) (bl)->superblock
#define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag
+#define BLOCK_HASHTABLE(bl) (bl)->hashtable
+
+/* For blocks without a hashtable (BLOCK_HASHTABLE (bl) == 0) only. */
+#define BLOCK_NSYMS(bl) (bl)->nsyms
+#define BLOCK_SYM(bl, n) (bl)->sym[n]
+
+/* For blocks with a hashtable, but these are valid for non-hashed blocks as
+ well - each symbol will appear to be one bucket by itself. */
+#define BLOCK_BUCKETS(bl) (bl)->nsyms
+#define BLOCK_BUCKET(bl, n) (bl)->sym[n]
+
+/* Macro used to set the size of a hashtable for N symbols. */
+#define BLOCK_HASHTABLE_SIZE(n) ((n)/5 + 1)
+
+/* Macro to loop through all symbols in a block BL, in no particular order.
+ i counts which bucket we are in, and sym points to the current symbol. */
+
+#define ALL_BLOCK_SYMBOLS(bl, i, sym) \
+ for ((i) = 0; (i) < BLOCK_BUCKETS ((bl)); (i)++) \
+ for ((sym) = BLOCK_BUCKET ((bl), (i)); (sym); \
+ (sym) = (sym)->hash_next)
/* Nonzero if symbols of block BL should be sorted alphabetically.
Don't sort a block which corresponds to a function. If we did the
sorting would have to preserve the order of the symbols for the
- arguments. */
-
-#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40 && BLOCK_FUNCTION (bl) == NULL)
+ arguments. Also don't sort any block that we chose to hash. */
+#define BLOCK_SHOULD_SORT(bl) (! BLOCK_HASHTABLE (bl) \
+ && BLOCK_FUNCTION (bl) == NULL)
\f
+
/* Represent one symbol name; a variable, constant, function or typedef. */
/* Different name spaces for symbols. Looking up a symbol specifies a
namespace and ignores symbol definitions in other name spaces. */
-
-typedef enum
+
+typedef enum
{
/* UNDEF_NAMESPACE is used when a namespace has not been discovered or
none of the following apply. This usually indicates an error either
/* All class methods -- why is this separated out? */
METHODS_NAMESPACE
-
-} namespace_enum;
+}
+namespace_enum;
/* An address-class says where to find the value of a symbol. */
LOC_UNRESOLVED,
/* Value is at a thread-specific location calculated by a
- target-specific method. */
-
+ target-specific method. This is used only by hppa. */
+
+ LOC_HP_THREAD_LOCAL_STATIC,
+
+ /* Value is at a thread-specific location calculated by a
+ target-specific method. SYMBOL_OBJFILE gives the object file
+ in which the symbol is defined; the symbol's value is the
+ offset into that objfile's thread-local storage for the current
+ thread. */
+
LOC_THREAD_LOCAL_STATIC,
-
+
/* The variable does not actually exist in the program.
The value is ignored. */
*/
LOC_INDIRECT
-
};
/* Linked list of symbol's live ranges. */
-struct range_list
+struct range_list
{
CORE_ADDR start;
CORE_ADDR end;
- struct range_list *next;
+ struct range_list *next;
};
/* Linked list of aliases for a particular main/primary symbol. */
struct alias_list
- {
- struct symbol *sym;
- struct alias_list *next;
- };
+{
+ struct symbol *sym;
+ struct alias_list *next;
+};
struct symbol
{
#ifdef __MFC4__
/* FIXME: don't conflict with C++'s namespace */
/* would be safer to do a global change for all namespace identifiers. */
- #define namespace _namespace
+#define namespace _namespace
#endif
namespace_enum namespace BYTE_BITFIELD;
machine generated programs? */
unsigned short line;
-
+
/* Some symbols require an additional value to be recorded on a per-
symbol basis. Stash those values here. */
union
- {
- /* Used by LOC_BASEREG and LOC_BASEREG_ARG. */
- short basereg;
- }
+ {
+ /* Used by LOC_BASEREG and LOC_BASEREG_ARG. */
+ short basereg;
+
+ /* Used by LOC_THREAD_LOCAL_STATIC. The objfile in which this
+ symbol is defined. To find a thread-local variable (e.g., a
+ variable declared with the `__thread' storage class), we may
+ need to know which object file it's in. */
+ struct objfile *objfile;
+ }
aux_value;
/* List of ranges where this symbol is active. This is only
used by alias symbols at the current time. */
struct range_list *ranges;
+
+ struct symbol *hash_next;
};
#define SYMBOL_TYPE(symbol) (symbol)->type
#define SYMBOL_LINE(symbol) (symbol)->line
#define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg
+#define SYMBOL_OBJFILE(symbol) (symbol)->aux_value.objfile
#define SYMBOL_ALIASES(symbol) (symbol)->aliases
#define SYMBOL_RANGES(symbol) (symbol)->ranges
\f
#define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
-
\f
-/* Source-file information. This describes the relation between source files,
- ine numbers and addresses in the program text. */
-
-struct sourcevector
-{
- int length; /* Number of source files described */
- struct source *source[1]; /* Descriptions of the files */
-};
/* Each item represents a line-->pc (or the reverse) mapping. This is
somewhat more wasteful of space than one might wish, but since only
Example: a C for statement generally looks like this
- 10 0x100 - for the init/test part of a for stmt.
- 20 0x200
- 30 0x300
- 10 0x400 - for the increment part of a for stmt.
+ 10 0x100 - for the init/test part of a for stmt.
+ 20 0x200
+ 30 0x300
+ 10 0x400 - for the increment part of a for stmt.
- */
+ If an entry has a line number of zero, it marks the start of a PC
+ range for which no line number information is available. It is
+ acceptable, though wasteful of table space, for such a range to be
+ zero length. */
struct linetable
{
struct linetable_entry item[1];
};
-/* All the information on one source file. */
-
-struct source
-{
- char *name; /* Name of file */
- struct linetable contents;
-};
-
/* How to relocate the symbols from each section in a symbol file.
Each struct contains an array of offsets.
The ordering and meaning of the offsets is file-type-dependent;
extract offset values in the struct. */
struct section_offsets
- {
- CORE_ADDR offsets[1]; /* As many as needed. */
- };
+{
+ CORE_ADDR offsets[1]; /* As many as needed. */
+};
-#define ANOFFSET(secoff, whichone) (secoff->offsets[whichone])
+#define ANOFFSET(secoff, whichone) \
+ ((whichone == -1) \
+ ? (internal_error (__FILE__, __LINE__, "Section index is uninitialized"), -1) \
+ : secoff->offsets[whichone])
-/* The maximum possible size of a section_offsets table. */
-
-#define SIZEOF_SECTION_OFFSETS \
+/* The size of a section_offsets table for N sections. */
+#define SIZEOF_N_SECTION_OFFSETS(n) \
(sizeof (struct section_offsets) \
- + sizeof (((struct section_offsets *) 0)->offsets) * (SECT_OFF_MAX-1))
+ + sizeof (((struct section_offsets *) 0)->offsets) * ((n)-1))
+/* The maximum possible size of a section_offsets table. */
+#define SIZEOF_SECTION_OFFSETS (SIZEOF_N_SECTION_OFFSETS (SECT_OFF_MAX))
/* Each source file or header is represented by a struct symtab.
These objects are chained through the `next' field. */
struct symtab
- {
+{
- /* Chain of all existing symtabs. */
+ /* Chain of all existing symtabs. */
- struct symtab *next;
+ struct symtab *next;
- /* List of all symbol scope blocks for this symtab. May be shared
- between different symtabs (and normally is for all the symtabs
- in a given compilation unit). */
+ /* List of all symbol scope blocks for this symtab. May be shared
+ between different symtabs (and normally is for all the symtabs
+ in a given compilation unit). */
- struct blockvector *blockvector;
+ struct blockvector *blockvector;
- /* Table mapping core addresses to line numbers for this file.
- Can be NULL if none. Never shared between different symtabs. */
+ /* Table mapping core addresses to line numbers for this file.
+ Can be NULL if none. Never shared between different symtabs. */
- struct linetable *linetable;
+ struct linetable *linetable;
- /* Section in objfile->section_offsets for the blockvector and
- the linetable. Probably always SECT_OFF_TEXT. */
+ /* Section in objfile->section_offsets for the blockvector and
+ the linetable. Probably always SECT_OFF_TEXT. */
- int block_line_section;
+ int block_line_section;
- /* If several symtabs share a blockvector, exactly one of them
- should be designed the primary, so that the blockvector
- is relocated exactly once by objfile_relocate. */
+ /* If several symtabs share a blockvector, exactly one of them
+ should be designated the primary, so that the blockvector
+ is relocated exactly once by objfile_relocate. */
- int primary;
+ int primary;
- /* Name of this source file. */
+ /* The macro table for this symtab. Like the blockvector, this
+ may be shared between different symtabs --- and normally is for
+ all the symtabs in a given compilation unit. */
+ struct macro_table *macro_table;
- char *filename;
+ /* Name of this source file. */
- /* Directory in which it was compiled, or NULL if we don't know. */
+ char *filename;
- char *dirname;
+ /* Directory in which it was compiled, or NULL if we don't know. */
- /* This component says how to free the data we point to:
- free_contents => do a tree walk and free each object.
- free_nothing => do nothing; some other symtab will free
- the data this one uses.
- free_linetable => free just the linetable. FIXME: Is this redundant
- with the primary field? */
+ char *dirname;
- enum free_code
- {
- free_nothing, free_contents, free_linetable
- }
- free_code;
+ /* This component says how to free the data we point to:
+ free_contents => do a tree walk and free each object.
+ free_nothing => do nothing; some other symtab will free
+ the data this one uses.
+ free_linetable => free just the linetable. FIXME: Is this redundant
+ with the primary field? */
- /* Pointer to one block of storage to be freed, if nonzero. */
- /* This is IN ADDITION to the action indicated by free_code. */
-
- char *free_ptr;
+ enum free_code
+ {
+ free_nothing, free_contents, free_linetable
+ }
+ free_code;
- /* Total number of lines found in source file. */
+ /* Pointer to one block of storage to be freed, if nonzero. */
+ /* This is IN ADDITION to the action indicated by free_code. */
- int nlines;
+ char *free_ptr;
- /* line_charpos[N] is the position of the (N-1)th line of the
- source file. "position" means something we can lseek() to; it
- is not guaranteed to be useful any other way. */
+ /* Total number of lines found in source file. */
- int *line_charpos;
+ int nlines;
- /* Language of this source file. */
+ /* line_charpos[N] is the position of the (N-1)th line of the
+ source file. "position" means something we can lseek() to; it
+ is not guaranteed to be useful any other way. */
- enum language language;
+ int *line_charpos;
- /* String that identifies the format of the debugging information, such
- as "stabs", "dwarf 1", "dwarf 2", "coff", etc. This is mostly useful
- for automated testing of gdb but may also be information that is
- useful to the user. */
+ /* Language of this source file. */
- char *debugformat;
+ enum language language;
- /* String of version information. May be zero. */
+ /* String that identifies the format of the debugging information, such
+ as "stabs", "dwarf 1", "dwarf 2", "coff", etc. This is mostly useful
+ for automated testing of gdb but may also be information that is
+ useful to the user. */
- char *version;
+ char *debugformat;
- /* Full name of file as found by searching the source path.
- NULL if not yet known. */
+ /* String of version information. May be zero. */
- char *fullname;
+ char *version;
- /* Object file from which this symbol information was read. */
+ /* Full name of file as found by searching the source path.
+ NULL if not yet known. */
- struct objfile *objfile;
+ char *fullname;
- };
+ /* Object file from which this symbol information was read. */
+
+ struct objfile *objfile;
+
+};
#define BLOCKVECTOR(symtab) (symtab)->blockvector
#define LINETABLE(symtab) (symtab)->linetable
-
\f
+
/* Each source file that has not been fully read in is represented by
a partial_symtab. This contains the information on where in the
executable the debugging symbols for a specific file are, and a
char *filename;
+ /* Full path of the source file. NULL if not known. */
+
+ char *fullname;
+
/* Information about the object file from which symbols should be read. */
struct objfile *objfile;
- /* Set of relocation offsets to apply to each section. */
+ /* Set of relocation offsets to apply to each section. */
struct section_offsets *section_offsets;
/* Pointer to function which will read in the symtab corresponding to
this psymtab. */
- void (*read_symtab) PARAMS ((struct partial_symtab *));
+ void (*read_symtab) (struct partial_symtab *);
/* Information that lets read_symtab() locate the part of the symbol table
that this psymtab corresponds to. This information is private to the
/* A fast way to get from a psymtab to its symtab (after the first time). */
#define PSYMTAB_TO_SYMTAB(pst) \
((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst))
-
\f
+
/* The virtual function table is now an array of structures which have the
form { int16 offset, delta; void *pfn; }.
PFN is a pointer to the virtual function.
Note that this macro is g++ specific (FIXME). */
-
-#define VTBL_FNADDR_OFFSET 2
-
-/* Macro that yields non-zero value iff NAME is the prefix for C++ operator
- names. If you leave out the parenthesis here you will lose!
- Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the
- symbol-file and the names in gdb's symbol table.
- Note that this macro is g++ specific (FIXME). */
-#define OPNAME_PREFIX_P(NAME) \
- ((NAME)[0] == 'o' && (NAME)[1] == 'p' && is_cplus_marker ((NAME)[2]))
-
-/* Macro that yields non-zero value iff NAME is the prefix for C++ vtbl
- names. Note that this macro is g++ specific (FIXME).
- '_vt$' is the old cfront-style vtables; '_VT$' is the new
- style, using thunks (where '$' is really CPLUS_MARKER). */
-
-#define VTBL_PREFIX_P(NAME) \
- ((NAME)[0] == '_' \
- && (((NAME)[1] == 'V' && (NAME)[2] == 'T') \
- || ((NAME)[1] == 'v' && (NAME)[2] == 't')) \
- && is_cplus_marker ((NAME)[3]))
-
-/* Macro that yields non-zero value iff NAME is the prefix for C++ destructor
- names. Note that this macro is g++ specific (FIXME). */
-
-#define DESTRUCTOR_PREFIX_P(NAME) \
- ((NAME)[0] == '_' && is_cplus_marker ((NAME)[1]) && (NAME)[2] == '_')
+#define VTBL_FNADDR_OFFSET 2
-\f
/* External variables and functions for the objects described above. */
-/* This symtab variable specifies the current file for printing source lines */
-
-extern struct symtab *current_source_symtab;
-
-/* This is the next line to print for listing source lines. */
-
-extern int current_source_line;
-
/* See the comment in symfile.c about how current_objfile is used. */
extern struct objfile *current_objfile;
/* lookup a symbol table by source file name */
-extern struct symtab *
-lookup_symtab PARAMS ((char *));
+extern struct symtab *lookup_symtab (const char *);
/* lookup a symbol by name (optional block, optional symtab) */
-extern struct symbol *
-lookup_symbol PARAMS ((const char *, const struct block *,
- const namespace_enum, int *, struct symtab **));
+extern struct symbol *lookup_symbol (const char *, const struct block *,
+ const namespace_enum, int *,
+ struct symtab **);
/* lookup a symbol by name, within a specified block */
-
-extern struct symbol *
-lookup_block_symbol PARAMS ((const struct block *, const char *,
- const namespace_enum));
+
+extern struct symbol *lookup_block_symbol (const struct block *, const char *,
+ const char *,
+ const namespace_enum);
/* lookup a [struct, union, enum] by name, within a specified block */
-extern struct type *
-lookup_struct PARAMS ((char *, struct block *));
+extern struct type *lookup_struct (char *, struct block *);
-extern struct type *
-lookup_union PARAMS ((char *, struct block *));
+extern struct type *lookup_union (char *, struct block *);
-extern struct type *
-lookup_enum PARAMS ((char *, struct block *));
+extern struct type *lookup_enum (char *, struct block *);
/* lookup the function corresponding to the block */
-extern struct symbol *
-block_function PARAMS ((struct block *));
+extern struct symbol *block_function (struct block *);
/* from blockframe.c: */
/* lookup the function symbol corresponding to the address */
-extern struct symbol *
-find_pc_function PARAMS ((CORE_ADDR));
+extern struct symbol *find_pc_function (CORE_ADDR);
/* lookup the function corresponding to the address and section */
-extern struct symbol *
-find_pc_sect_function PARAMS ((CORE_ADDR, asection *));
-
+extern struct symbol *find_pc_sect_function (CORE_ADDR, asection *);
+
/* lookup function from address, return name, start addr and end addr */
-extern int
-find_pc_partial_function PARAMS ((CORE_ADDR, char **,
- CORE_ADDR *, CORE_ADDR *));
+extern int
+find_pc_partial_function (CORE_ADDR, char **, CORE_ADDR *, CORE_ADDR *);
-extern void
-clear_pc_function_cache PARAMS ((void));
+extern void clear_pc_function_cache (void);
-extern int
-find_pc_sect_partial_function PARAMS ((CORE_ADDR, asection *,
- char **, CORE_ADDR *, CORE_ADDR *));
+extern int find_pc_sect_partial_function (CORE_ADDR, asection *,
+ char **, CORE_ADDR *, CORE_ADDR *);
/* from symtab.c: */
/* lookup partial symbol table by filename */
-extern struct partial_symtab *
-lookup_partial_symtab PARAMS ((char *));
+extern struct partial_symtab *lookup_partial_symtab (const char *);
/* lookup partial symbol table by address */
-extern struct partial_symtab *
-find_pc_psymtab PARAMS ((CORE_ADDR));
+extern struct partial_symtab *find_pc_psymtab (CORE_ADDR);
/* lookup partial symbol table by address and section */
-extern struct partial_symtab *
-find_pc_sect_psymtab PARAMS ((CORE_ADDR, asection *));
+extern struct partial_symtab *find_pc_sect_psymtab (CORE_ADDR, asection *);
/* lookup full symbol table by address */
-extern struct symtab *
-find_pc_symtab PARAMS ((CORE_ADDR));
+extern struct symtab *find_pc_symtab (CORE_ADDR);
/* lookup full symbol table by address and section */
-extern struct symtab *
-find_pc_sect_symtab PARAMS ((CORE_ADDR, asection *));
+extern struct symtab *find_pc_sect_symtab (CORE_ADDR, asection *);
/* lookup partial symbol by address */
-extern struct partial_symbol *
-find_pc_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR));
+extern struct partial_symbol *find_pc_psymbol (struct partial_symtab *,
+ CORE_ADDR);
/* lookup partial symbol by address and section */
-extern struct partial_symbol *
-find_pc_sect_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR, asection *));
+extern struct partial_symbol *find_pc_sect_psymbol (struct partial_symtab *,
+ CORE_ADDR, asection *);
-extern int
-find_pc_line_pc_range PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *));
+extern int find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *);
-extern int
-contained_in PARAMS ((struct block *, struct block *));
+extern int contained_in (struct block *, struct block *);
-extern void
-reread_symbols PARAMS ((void));
+extern void reread_symbols (void);
-extern struct type *
-lookup_transparent_type PARAMS ((const char *));
+extern struct type *lookup_transparent_type (const char *);
/* Macro for name of symbol to indicate a file compiled with gcc. */
/* Functions for dealing with the minimal symbol table, really a misc
address<->symbol mapping for things we don't have debug symbols for. */
-extern void prim_record_minimal_symbol PARAMS ((const char *, CORE_ADDR,
- enum minimal_symbol_type,
- struct objfile *));
+extern void prim_record_minimal_symbol (const char *, CORE_ADDR,
+ enum minimal_symbol_type,
+ struct objfile *);
extern struct minimal_symbol *prim_record_minimal_symbol_and_info
- PARAMS ((const char *, CORE_ADDR,
- enum minimal_symbol_type,
- char *info, int section,
- asection *bfd_section,
- struct objfile *));
+ (const char *, CORE_ADDR,
+ enum minimal_symbol_type,
+ char *info, int section, asection * bfd_section, struct objfile *);
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
-extern CORE_ADDR find_stab_function_addr PARAMS ((char *,
- struct partial_symtab *,
- struct objfile *));
-#endif
+extern unsigned int msymbol_hash_iw (const char *);
-extern struct minimal_symbol *
-lookup_minimal_symbol PARAMS ((const char *, const char *, struct objfile *));
+extern unsigned int msymbol_hash (const char *);
-extern struct minimal_symbol *
-lookup_minimal_symbol_text PARAMS ((const char *, const char *, struct objfile *));
+extern void
+add_minsym_to_hash_table (struct minimal_symbol *sym,
+ struct minimal_symbol **table);
-struct minimal_symbol *
-lookup_minimal_symbol_solib_trampoline PARAMS ((const char *,
- const char *,
- struct objfile *));
+extern struct minimal_symbol *lookup_minimal_symbol (const char *,
+ const char *,
+ struct objfile *);
-extern struct minimal_symbol *
-lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR));
+extern struct minimal_symbol *lookup_minimal_symbol_text (const char *,
+ const char *,
+ struct objfile *);
-extern struct minimal_symbol *
-lookup_minimal_symbol_by_pc_section PARAMS ((CORE_ADDR, asection *));
+struct minimal_symbol *lookup_minimal_symbol_solib_trampoline (const char *,
+ const char *,
+ struct objfile
+ *);
-extern struct minimal_symbol *
-lookup_solib_trampoline_symbol_by_pc PARAMS ((CORE_ADDR));
+extern struct minimal_symbol *lookup_minimal_symbol_by_pc (CORE_ADDR);
-extern CORE_ADDR
-find_solib_trampoline_target PARAMS ((CORE_ADDR));
+extern struct minimal_symbol *lookup_minimal_symbol_by_pc_section (CORE_ADDR,
+ asection
+ *);
-extern void
-init_minimal_symbol_collection PARAMS ((void));
+extern struct minimal_symbol
+ *lookup_solib_trampoline_symbol_by_pc (CORE_ADDR);
-extern void
-discard_minimal_symbols PARAMS ((int));
+extern CORE_ADDR find_solib_trampoline_target (CORE_ADDR);
-extern void
-install_minimal_symbols PARAMS ((struct objfile *));
+extern void init_minimal_symbol_collection (void);
+
+extern struct cleanup *make_cleanup_discard_minimal_symbols (void);
+
+extern void install_minimal_symbols (struct objfile *);
/* Sort all the minimal symbols in OBJFILE. */
-extern void msymbols_sort PARAMS ((struct objfile *objfile));
+extern void msymbols_sort (struct objfile *objfile);
struct symtab_and_line
{
struct symtab *symtab;
- asection *section;
+ asection *section;
/* Line number. Line numbers start at 1 and proceed through symtab->nlines.
0 is never a valid line number; it is used to indicate that line number
information is not available. */
CORE_ADDR end;
};
-#define INIT_SAL(sal) { \
- (sal)->symtab = 0; \
- (sal)->section = 0; \
- (sal)->line = 0; \
- (sal)->pc = 0; \
- (sal)->end = 0; \
-}
+extern void init_sal (struct symtab_and_line *sal);
struct symtabs_and_lines
{
struct symtab_and_line *sals;
int nelts;
};
+\f
-\f
/* Some types and macros needed for exception catchpoints.
Can't put these in target.h because symtab_and_line isn't
known there. This file will be included by breakpoint.c,
hppa-tdep.c, etc. */
/* Enums for exception-handling support */
-enum exception_event_kind {
+enum exception_event_kind
+{
EX_EVENT_THROW,
EX_EVENT_CATCH
};
/* Type for returning info about an exception */
-struct exception_event_record {
- enum exception_event_kind kind;
- struct symtab_and_line throw_sal;
- struct symtab_and_line catch_sal;
+struct exception_event_record
+{
+ enum exception_event_kind kind;
+ struct symtab_and_line throw_sal;
+ struct symtab_and_line catch_sal;
/* This may need to be extended in the future, if
some platforms allow reporting more information,
such as point of rethrow, type of exception object,
- type expected by catch clause, etc. */
+ type expected by catch clause, etc. */
};
#define CURRENT_EXCEPTION_KIND (current_exception_event->kind)
/* Given a pc value, return line number it is in. Second arg nonzero means
if pc is on the boundary use the previous statement's line number. */
-extern struct symtab_and_line
-find_pc_line PARAMS ((CORE_ADDR, int));
+extern struct symtab_and_line find_pc_line (CORE_ADDR, int);
/* Same function, but specify a section as well as an address */
-extern struct symtab_and_line
-find_pc_sect_line PARAMS ((CORE_ADDR, asection *, int));
-
-/* Given an address, return the nearest symbol at or below it in memory.
- Optionally return the symtab it's from through 2nd arg, and the
- address in inferior memory of the symbol through 3rd arg. */
-
-extern struct symbol *
-find_addr_symbol PARAMS ((CORE_ADDR, struct symtab **, CORE_ADDR *));
+extern struct symtab_and_line find_pc_sect_line (CORE_ADDR, asection *, int);
/* Given a symtab and line number, return the pc there. */
+extern int find_line_pc (struct symtab *, int, CORE_ADDR *);
+
extern int
-find_line_pc PARAMS ((struct symtab *, int, CORE_ADDR *));
+find_line_pc_range (struct symtab_and_line, CORE_ADDR *, CORE_ADDR *);
-extern int
-find_line_pc_range PARAMS ((struct symtab_and_line,
- CORE_ADDR *, CORE_ADDR *));
-
-extern void
-resolve_sal_pc PARAMS ((struct symtab_and_line *));
+extern void resolve_sal_pc (struct symtab_and_line *);
/* Given a string, return the line specified by it. For commands like "list"
and "breakpoint". */
-extern struct symtabs_and_lines
-decode_line_spec PARAMS ((char *, int));
-
-extern struct symtabs_and_lines
-decode_line_spec_1 PARAMS ((char *, int));
+extern struct symtabs_and_lines decode_line_spec (char *, int);
-extern struct symtabs_and_lines
-decode_line_1 PARAMS ((char **, int, struct symtab *, int, char ***));
+extern struct symtabs_and_lines decode_line_spec_1 (char *, int);
/* Symmisc.c */
-void
-maintenance_print_symbols PARAMS ((char *, int));
+void maintenance_print_symbols (char *, int);
-void
-maintenance_print_psymbols PARAMS ((char *, int));
+void maintenance_print_psymbols (char *, int);
-void
-maintenance_print_msymbols PARAMS ((char *, int));
+void maintenance_print_msymbols (char *, int);
-void
-maintenance_print_objfiles PARAMS ((char *, int));
+void maintenance_print_objfiles (char *, int);
-void
-maintenance_check_symtabs PARAMS ((char *, int));
+void maintenance_check_symtabs (char *, int);
/* maint.c */
-void
-maintenance_print_statistics PARAMS ((char *, int));
+void maintenance_print_statistics (char *, int);
-extern void
-free_symtab PARAMS ((struct symtab *));
+extern void free_symtab (struct symtab *);
/* Symbol-reading stuff in symfile.c and solib.c. */
-extern struct symtab *
-psymtab_to_symtab PARAMS ((struct partial_symtab *));
-
-extern void
-clear_solib PARAMS ((void));
+extern struct symtab *psymtab_to_symtab (struct partial_symtab *);
-extern struct objfile *
-symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int, int, int));
+extern void clear_solib (void);
/* source.c */
-extern int
-identify_source_line PARAMS ((struct symtab *, int, int, CORE_ADDR));
+extern int identify_source_line (struct symtab *, int, int, CORE_ADDR);
-extern void
-print_source_lines PARAMS ((struct symtab *, int, int, int));
+extern void print_source_lines (struct symtab *, int, int, int);
-extern void
-forget_cached_source_info PARAMS ((void));
+extern void forget_cached_source_info (void);
-extern void
-select_source_symtab PARAMS ((struct symtab *));
+extern void select_source_symtab (struct symtab *);
+
+extern char **make_symbol_completion_list (char *, char *);
-extern char **make_symbol_completion_list PARAMS ((char *, char *));
+extern char **make_file_symbol_completion_list (char *, char *, char *);
-extern struct symbol **
-make_symbol_overload_list PARAMS ((struct symbol *));
+extern struct symbol **make_symbol_overload_list (struct symbol *);
+
+extern char **make_source_files_completion_list (char *, char *);
/* symtab.c */
-extern struct partial_symtab *
-find_main_psymtab PARAMS ((void));
+extern struct partial_symtab *find_main_psymtab (void);
+
+extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
+
+extern struct symtab_and_line find_function_start_sal (struct symbol *sym,
+ int);
/* blockframe.c */
-extern struct blockvector *
-blockvector_for_pc PARAMS ((CORE_ADDR, int *));
+extern struct blockvector *blockvector_for_pc (CORE_ADDR, int *);
-extern struct blockvector *
-blockvector_for_pc_sect PARAMS ((CORE_ADDR, asection *, int *,
- struct symtab *));
+extern struct blockvector *blockvector_for_pc_sect (CORE_ADDR, asection *,
+ int *, struct symtab *);
/* symfile.c */
-extern void
-clear_symtab_users PARAMS ((void));
+extern void clear_symtab_users (void);
-extern enum language
-deduce_language_from_filename PARAMS ((char *));
+extern enum language deduce_language_from_filename (char *);
/* symtab.c */
-extern int
-in_prologue PARAMS ((CORE_ADDR pc, CORE_ADDR func_start));
+extern int in_prologue (CORE_ADDR pc, CORE_ADDR func_start);
+
+extern struct symbol *fixup_symbol_section (struct symbol *,
+ struct objfile *);
-extern struct symbol *
-fixup_symbol_section PARAMS ((struct symbol *, struct objfile *));
+extern struct partial_symbol *fixup_psymbol_section (struct partial_symbol
+ *psym,
+ struct objfile *objfile);
/* Symbol searching */
/* When using search_symbols, a list of the following structs is returned.
- Callers must free the search list using free_symbol_search! */
+ Callers must free the search list using free_search_symbols! */
struct symbol_search
{
/* The block in which the match was found. Could be, for example,
struct symbol_search *next;
};
-extern void search_symbols PARAMS ((char *, namespace_enum, int, char **, struct symbol_search **));
-extern void free_search_symbols PARAMS ((struct symbol_search *));
+extern void search_symbols (char *, namespace_enum, int, char **,
+ struct symbol_search **);
+extern void free_search_symbols (struct symbol_search *);
+extern struct cleanup *make_cleanup_free_search_symbols (struct symbol_search
+ *);
+
+/* The name of the ``main'' function.
+ FIXME: cagney/2001-03-20: Can't make main_name() const since some
+ of the calling code currently assumes that the string isn't
+ const. */
+extern void set_main_name (const char *name);
+extern /*const */ char *main_name (void);
#endif /* !defined(SYMTAB_H) */
projects / deliverable / binutils-gdb.git / blobdiff