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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/symtab.h
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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-/* 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.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#if !defined (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"
-
-/* 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
- things; also it is a pain to have to "make clean" every time you
- want to switch compilers), then GDB dies a horrible death. */
-/* GNU C supports enums that are bitfields. Some compilers don't. */
-#if 0 && defined(__GNUC__) && !defined(BYTE_BITFIELD)
-#define BYTE_BITFIELD :8;
-#else
-#define BYTE_BITFIELD /*nothing*/
-#endif
-
-/* Define a structure for the information that is common to all symbol types,
- including minimal symbols, partial symbols, and full symbols. In a
- multilanguage environment, some language specific information may need to
- be recorded along with each symbol.
-
- These fields are ordered to encourage good packing, since we frequently
- have tens or hundreds of thousands of these. */
-
-struct general_symbol_info
-{
- /* Name of the symbol. This is a required field. Storage for the name is
- allocated on the psymbol_obstack or symbol_obstack for the associated
- objfile. */
-
- char *name;
-
- /* Value of the symbol. Which member of this union to use, and what
- it means, depends on what kind of symbol this is and its
- SYMBOL_CLASS. See comments there for more details. All of these
- are in host byte order (though what they point to might be in
- 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;
-
- struct block *block;
-
- char *bytes;
-
- CORE_ADDR address;
-
- /* for opaque typedef struct 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++ */
- /* start-sanitize-java */
- /* and Java */
- /* end-sanitize-java */
- {
- char *demangled_name;
- } cplus_specific;
- struct chill_specific /* For Chill */
- {
- char *demangled_name;
- } chill_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
- union above. */
-
- enum language language BYTE_BITFIELD;
-
- /* Which section is this symbol in? This is an index into
- section_offsets for this objfile. Negative means that the symbol
- does not get relocated relative to a section.
- Disclaimer: currently this is just used for xcoff, so don't
- expect all symbol-reading code to set it correctly (the ELF code
- also tries to set it correctly). */
-
- short section;
-
- /* The bfd section associated with this symbol. */
-
- asection *bfd_section;
-};
-
-extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *));
-
-#define SYMBOL_NAME(symbol) (symbol)->ginfo.name
-#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue
-#define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address
-#define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes
-#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block
-#define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain
-#define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.language
-#define SYMBOL_SECTION(symbol) (symbol)->ginfo.section
-#define SYMBOL_BFD_SECTION(symbol) (symbol)->ginfo.bfd_section
-
-#define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \
- (symbol)->ginfo.language_specific.cplus_specific.demangled_name
-
-/* Macro that initializes the language dependent portion of a symbol
- depending upon the language for the symbol. */
-
-#define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \
- do { \
- SYMBOL_LANGUAGE (symbol) = language; \
- if (SYMBOL_LANGUAGE (symbol) == language_cplus \
- /* start-sanitize-java */ \
- || SYMBOL_LANGUAGE (symbol) == language_java \
- /* end-sanitize-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; \
- } \
- } \
- /* start-sanitize-java */ \
- 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; \
- } \
- } \
- /* end-sanitize-java */ \
- 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 \
- /* start-sanitize-java */ \
- || SYMBOL_LANGUAGE (symbol) == language_java \
- /* end-sanitize-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
-
-/* 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
- of the name if demangle is off. In other languages this is just the
- symbol name. The result should never be NULL. */
-
-#define SYMBOL_SOURCE_NAME(symbol) \
- (demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \
- ? SYMBOL_DEMANGLED_NAME (symbol) \
- : SYMBOL_NAME (symbol))
-
-/* Macro that returns the "natural assembly name" of a symbol. In C++ this is
- the "mangled" form of the name if demangle is off, or if demangle is on and
- asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled"
- form. In other languages this is just the symbol name. The result should
- never be NULL. */
-
-#define SYMBOL_LINKAGE_NAME(symbol) \
- (demangle && asm_demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \
- ? SYMBOL_DEMANGLED_NAME (symbol) \
- : SYMBOL_NAME (symbol))
-
-/* Macro that tests a symbol for a match against a specified name string.
- First test the unencoded name, then looks for and test a C++ encoded
- name if it exists. Note that whitespace is ignored while attempting to
- match a C++ encoded name, so that "foo::bar(int,long)" is the same as
- "foo :: bar (int, long)".
- Evaluates to zero if the match fails, or nonzero if it succeeds. */
-
-#define SYMBOL_MATCHES_NAME(symbol, name) \
- (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.
- Evaluates to zero if the match fails, or nonzero if it succeeds. */
-
-#define SYMBOL_MATCHES_REGEXP(symbol) \
- (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.
-
- In many cases, even if a file was compiled with no special options for
- debugging at all, as long as was not stripped it will contain sufficient
- information to build a useful minimal symbol table using this structure.
- Even when a file contains enough debugging information to build a full
- symbol table, these minimal symbols are still useful for quickly mapping
- between names and addresses, and vice versa. They are also sometimes
- used to figure out what full symbol table entries need to be read in. */
-
-struct minimal_symbol
-{
-
- /* The general symbol info required for all types of symbols.
-
- The SYMBOL_VALUE_ADDRESS contains the address that this symbol
- corresponds to. */
-
- struct general_symbol_info ginfo;
-
- /* The info field is available for caching machine-specific information
- so it doesn't have to rederive the info constantly (over a serial line).
- It is initialized to zero and stays that way until target-dependent code
- sets it. Storage for any data pointed to by this field should be allo-
- cated on the symbol_obstack for the associated objfile.
- The type would be "void *" except for reasons of compatibility with older
- compilers. This field is optional.
-
- Currently, the AMD 29000 tdep.c uses it to remember things it has decoded
- from the instructions in the function header, and the MIPS-16 code uses
- it to identify 16-bit procedures. */
-
- char *info;
-
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
- /* Which source file is this symbol in? Only relevant for mst_file_*. */
- char *filename;
-#endif
-
- /* Classification types for this symbol. These should be taken as "advisory
- only", since if gdb can't easily figure out a classification it simply
- selects mst_unknown. It may also have to guess when it can't figure out
- which is a better match between two types (mst_data versus mst_bss) for
- example. Since the minimal symbol info is sometimes derived from the
- BFD library's view of a file, we need to live with what information bfd
- 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;
-};
-
-#define MSYMBOL_INFO(msymbol) (msymbol)->info
-#define MSYMBOL_TYPE(msymbol) (msymbol)->type
-
-
-/* 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.
-
- Each block represents one name scope.
- Each lexical context has its own block.
-
- The blockvector begins with some special blocks.
- The GLOBAL_BLOCK contains all the symbols defined in this compilation
- whose scope is the entire program linked together.
- The STATIC_BLOCK contains all the symbols whose scope is the
- entire compilation excluding other separate compilations.
- Blocks starting with the FIRST_LOCAL_BLOCK are not special.
-
- Each block records a range of core addresses for the code that
- is in the scope of the block. The STATIC_BLOCK and GLOBAL_BLOCK
- give, for the range of code, the entire range of code produced
- by the compilation that the symbol segment belongs to.
-
- The blocks appear in the blockvector
- in order of increasing starting-address,
- and, within that, in order of decreasing ending-address.
-
- This implies that within the body of one function
- the blocks appear in the order of a depth-first tree walk. */
-
-struct blockvector
-{
- /* Number of blocks in the list. */
- int nblocks;
- /* The blocks themselves. */
- struct block *block[1];
-};
-
-#define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
-#define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
-
-/* Special block numbers */
-
-#define GLOBAL_BLOCK 0
-#define STATIC_BLOCK 1
-#define FIRST_LOCAL_BLOCK 2
-
-struct block
-{
-
- /* Addresses in the executable code that are in this block. */
-
- CORE_ADDR startaddr;
- CORE_ADDR endaddr;
-
- /* The symbol that names this block, if the block is the body of a
- function; otherwise, zero. */
-
- struct symbol *function;
-
- /* The `struct block' for the containing block, or 0 if none.
-
- The superblock of a top-level local block (i.e. a function in the
- case of C) is the STATIC_BLOCK. The superblock of the
- STATIC_BLOCK is the GLOBAL_BLOCK. */
-
- struct block *superblock;
-
- /* Version of GCC used to compile the function corresponding
- to this block, or 0 if not compiled with GCC. When possible,
- GCC should be compatible with the native compiler, or if that
- is not feasible, the differences should be fixed during symbol
- reading. As of 16 Apr 93, this flag is never used to distinguish
- between gcc2 and the native compiler.
-
- If there is no function corresponding to this block, this meaning
- of this flag is undefined. */
-
- unsigned char gcc_compile_flag;
-
- /* Number of local symbols. */
-
- int nsyms;
-
- /* The symbols. If some of them are arguments, then they must be
- in the order in which we would like to print them. */
-
- struct symbol *sym[1];
-};
-
-#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
-
-/* 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)
-
-
-/* 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
-{
- /* UNDEF_NAMESPACE is used when a namespace has not been discovered or
- none of the following apply. This usually indicates an error either
- in the symbol information or in gdb's handling of symbols. */
-
- UNDEF_NAMESPACE,
-
- /* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
- function names, typedef names and enum type values. */
-
- VAR_NAMESPACE,
-
- /* STRUCT_NAMESPACE is used in C to hold struct, union and enum type names.
- Thus, if `struct foo' is used in a C program, it produces a symbol named
- `foo' in the STRUCT_NAMESPACE. */
-
- STRUCT_NAMESPACE,
-
- /* LABEL_NAMESPACE may be used for names of labels (for gotos);
- currently it is not used and labels are not recorded at all. */
-
- LABEL_NAMESPACE,
-
- /* Searching namespaces. These overlap with VAR_NAMESPACE, providing
- some granularity with the search_symbols function. */
-
- /* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and
- METHODS_NAMESPACE */
- VARIABLES_NAMESPACE,
-
- /* All functions -- for some reason not methods, though. */
- FUNCTIONS_NAMESPACE,
-
- /* All defined types */
- TYPES_NAMESPACE,
-
- /* All class methods -- why is this separated out? */
- METHODS_NAMESPACE
-
-} namespace_enum;
-
-/* An address-class says where to find the value of a symbol. */
-
-enum address_class
-{
- /* Not used; catches errors */
-
- LOC_UNDEF,
-
- /* Value is constant int SYMBOL_VALUE, host byteorder */
-
- LOC_CONST,
-
- /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
-
- LOC_STATIC,
-
- /* Value is in register. SYMBOL_VALUE is the register number. */
-
- LOC_REGISTER,
-
- /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */
-
- LOC_ARG,
-
- /* Value address is at SYMBOL_VALUE offset in arglist. */
-
- LOC_REF_ARG,
-
- /* Value is in register number SYMBOL_VALUE. Just like LOC_REGISTER
- except this is an argument. Probably the cleaner way to handle
- this would be to separate address_class (which would include
- separate ARG and LOCAL to deal with FRAME_ARGS_ADDRESS versus
- FRAME_LOCALS_ADDRESS), and an is_argument flag.
-
- For some symbol formats (stabs, for some compilers at least),
- the compiler generates two symbols, an argument and a register.
- In some cases we combine them to a single LOC_REGPARM in symbol
- reading, but currently not for all cases (e.g. it's passed on the
- stack and then loaded into a register). */
-
- LOC_REGPARM,
-
- /* Value is in specified register. Just like LOC_REGPARM except the
- register holds the address of the argument instead of the argument
- itself. This is currently used for the passing of structs and unions
- on sparc and hppa. It is also used for call by reference where the
- address is in a register, at least by mipsread.c. */
-
- LOC_REGPARM_ADDR,
-
- /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */
-
- LOC_LOCAL,
-
- /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace
- STRUCT_NAMESPACE all have this class. */
-
- LOC_TYPEDEF,
-
- /* Value is address SYMBOL_VALUE_ADDRESS in the code */
-
- LOC_LABEL,
-
- /* In a symbol table, value is SYMBOL_BLOCK_VALUE of a `struct block'.
- In a partial symbol table, SYMBOL_VALUE_ADDRESS is the start address
- of the block. Function names have this class. */
-
- LOC_BLOCK,
-
- /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in
- target byte order. */
-
- LOC_CONST_BYTES,
-
- /* Value is arg at SYMBOL_VALUE offset in stack frame. Differs from
- LOC_LOCAL in that symbol is an argument; differs from LOC_ARG in
- that we find it in the frame (FRAME_LOCALS_ADDRESS), not in the
- arglist (FRAME_ARGS_ADDRESS). Added for i960, which passes args
- in regs then copies to frame. */
-
- LOC_LOCAL_ARG,
-
- /* Value is at SYMBOL_VALUE offset from the current value of
- register number SYMBOL_BASEREG. This exists mainly for the same
- things that LOC_LOCAL and LOC_ARG do; but we need to do this
- instead because on 88k DWARF gives us the offset from the
- frame/stack pointer, rather than the offset from the "canonical
- frame address" used by COFF, stabs, etc., and we don't know how
- to convert between these until we start examining prologues.
-
- Note that LOC_BASEREG is much less general than a DWARF expression.
- We don't need the generality (at least not yet), and storing a general
- DWARF expression would presumably take up more space than the existing
- scheme. */
-
- LOC_BASEREG,
-
- /* Same as LOC_BASEREG but it is an argument. */
-
- LOC_BASEREG_ARG,
-
- /* Value is at fixed address, but the address of the variable has
- to be determined from the minimal symbol table whenever the
- variable is referenced.
- This happens if debugging information for a global symbol is
- emitted and the corresponding minimal symbol is defined
- in another object file or runtime common storage.
- The linker might even remove the minimal symbol if the global
- symbol is never referenced, in which case the symbol remains
- unresolved. */
-
- LOC_UNRESOLVED,
-
- /* Value is at a thread-specific location calculated by a
- target-specific method. */
-
- LOC_THREAD_LOCAL_STATIC,
-
- /* The variable does not actually exist in the program.
- The value is ignored. */
-
- LOC_OPTIMIZED_OUT,
-
- /* The variable is static, but actually lives at * (address).
- * I.e. do an extra indirection to get to it.
- * This is used on HP-UX to get at globals that are allocated
- * in shared libraries, where references from images other
- * than the one where the global was allocated are done
- * with a level of indirection.
- */
-
- LOC_INDIRECT
-
-};
-
-/* Linked list of symbol's live ranges. */
-
-struct range_list
-{
- CORE_ADDR start;
- CORE_ADDR end;
- 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
-{
-
- /* The general symbol info required for all types of symbols. */
-
- struct general_symbol_info ginfo;
-
- /* Data type of value */
-
- struct type *type;
-
- /* Name space code. */
-
-#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
-#endif
- namespace_enum namespace BYTE_BITFIELD;
-
- /* Address class */
-
- enum address_class aclass BYTE_BITFIELD;
-
- /* Line number of definition. FIXME: Should we really make the assumption
- that nobody will try to debug files longer than 64K lines? What about
- 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;
- }
- aux_value;
-
-
- /* Link to a list of aliases for this symbol.
- Only a "primary/main symbol may have aliases. */
- struct alias_list *aliases;
-
- /* List of ranges where this symbol is active. This is only
- used by alias symbols at the current time. */
- struct range_list *ranges;
-};
-
-
-#define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
-#define SYMBOL_CLASS(symbol) (symbol)->aclass
-#define SYMBOL_TYPE(symbol) (symbol)->type
-#define SYMBOL_LINE(symbol) (symbol)->line
-#define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg
-#define SYMBOL_ALIASES(symbol) (symbol)->aliases
-#define SYMBOL_RANGES(symbol) (symbol)->ranges
-
-/* A partial_symbol records the name, namespace, and address class of
- symbols whose types we have not parsed yet. For functions, it also
- contains their memory address, so we can find them from a PC value.
- Each partial_symbol sits in a partial_symtab, all of which are chained
- on a partial symtab list and which points to the corresponding
- normal symtab once the partial_symtab has been referenced. */
-
-struct partial_symbol
-{
-
- /* The general symbol info required for all types of symbols. */
-
- struct general_symbol_info ginfo;
-
- /* Name space code. */
-
- namespace_enum namespace BYTE_BITFIELD;
-
- /* Address class (for info_symbols) */
-
- enum address_class aclass BYTE_BITFIELD;
-
-};
-
-#define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
-#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
-
-
-/* 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
- the files which are actually debugged are read in to core, we don't
- waste much space. */
-
-struct linetable_entry
-{
- int line;
- CORE_ADDR pc;
-};
-
-/* The order of entries in the linetable is significant. They should
- be sorted by increasing values of the pc field. If there is more than
- one entry for a given pc, then I'm not sure what should happen (and
- I not sure whether we currently handle it the best way).
-
- 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.
-
- */
-
-struct linetable
-{
- int nitems;
-
- /* Actually NITEMS elements. If you don't like this use of the
- `struct hack', you can shove it up your ANSI (seriously, if the
- committee tells us how to do it, we can probably go along). */
- 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;
- typically it is indexed by section numbers or symbol types or
- something like that.
-
- To give us flexibility in changing the internal representation
- of these offsets, the ANOFFSET macro must be used to insert and
- extract offset values in the struct. */
-
-struct section_offsets
- {
- CORE_ADDR offsets[1]; /* As many as needed. */
- };
-
-#define ANOFFSET(secoff, whichone) (secoff->offsets[whichone])
-
-/* The maximum possible size of a section_offsets table. */
-
-#define SIZEOF_SECTION_OFFSETS \
- (sizeof (struct section_offsets) \
- + sizeof (((struct section_offsets *) 0)->offsets) * (SECT_OFF_MAX-1))
-
-
-/* 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. */
-
- 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). */
-
- struct blockvector *blockvector;
-
- /* Table mapping core addresses to line numbers for this file.
- Can be NULL if none. Never shared between different symtabs. */
-
- struct linetable *linetable;
-
- /* Section in objfile->section_offsets for the blockvector and
- the linetable. Probably always SECT_OFF_TEXT. */
-
- 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. */
-
- int primary;
-
- /* Name of this source file. */
-
- char *filename;
-
- /* Directory in which it was compiled, or NULL if we don't know. */
-
- char *dirname;
-
- /* 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? */
-
- enum free_code
- {
- free_nothing, free_contents, free_linetable
- }
- free_code;
-
- /* 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;
-
- /* Total number of lines found in source file. */
-
- int nlines;
-
- /* 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. */
-
- int *line_charpos;
-
- /* Language of this source file. */
-
- enum language language;
-
- /* 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 *debugformat;
-
- /* String of version information. May be zero. */
-
- char *version;
-
- /* Full name of file as found by searching the source path.
- NULL if not yet known. */
-
- char *fullname;
-
- /* Object file from which this symbol information was read. */
-
- struct objfile *objfile;
-
- };
-
-#define BLOCKVECTOR(symtab) (symtab)->blockvector
-#define LINETABLE(symtab) (symtab)->linetable
-
-
-/* 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
- list of names of global symbols which are located in this file.
- They are all chained on partial symtab lists.
-
- Even after the source file has been read into a symtab, the
- partial_symtab remains around. They are allocated on an obstack,
- psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks-
- style execution of a bunch of .o's. */
-
-struct partial_symtab
-{
-
- /* Chain of all existing partial symtabs. */
-
- struct partial_symtab *next;
-
- /* Name of the source file which this partial_symtab defines */
-
- char *filename;
-
- /* Information about the object file from which symbols should be read. */
-
- struct objfile *objfile;
-
- /* Set of relocation offsets to apply to each section. */
-
- struct section_offsets *section_offsets;
-
- /* Range of text addresses covered by this file; texthigh is the
- beginning of the next section. */
-
- CORE_ADDR textlow;
- CORE_ADDR texthigh;
-
- /* Array of pointers to all of the partial_symtab's which this one
- depends on. Since this array can only be set to previous or
- the current (?) psymtab, this dependency tree is guaranteed not
- to have any loops. "depends on" means that symbols must be read
- for the dependencies before being read for this psymtab; this is
- for type references in stabs, where if foo.c includes foo.h, declarations
- in foo.h may use type numbers defined in foo.c. For other debugging
- formats there may be no need to use dependencies. */
-
- struct partial_symtab **dependencies;
-
- int number_of_dependencies;
-
- /* Global symbol list. This list will be sorted after readin to
- improve access. Binary search will be the usual method of
- finding a symbol within it. globals_offset is an integer offset
- within global_psymbols[]. */
-
- int globals_offset;
- int n_global_syms;
-
- /* Static symbol list. This list will *not* be sorted after readin;
- to find a symbol in it, exhaustive search must be used. This is
- reasonable because searches through this list will eventually
- lead to either the read in of a files symbols for real (assumed
- to take a *lot* of time; check) or an error (and we don't care
- how long errors take). This is an offset and size within
- static_psymbols[]. */
-
- int statics_offset;
- int n_static_syms;
-
- /* Pointer to symtab eventually allocated for this source file, 0 if
- !readin or if we haven't looked for the symtab after it was readin. */
-
- struct symtab *symtab;
-
- /* Pointer to function which will read in the symtab corresponding to
- this psymtab. */
-
- void (*read_symtab) PARAMS ((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
- format-dependent symbol reading routines. For further detail examine
- the various symbol reading modules. Should really be (void *) but is
- (char *) as with other such gdb variables. (FIXME) */
-
- char *read_symtab_private;
-
- /* Non-zero if the symtab corresponding to this psymtab has been readin */
-
- unsigned char readin;
-};
-
-/* 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))
-
-
-/* The virtual function table is now an array of structures which have the
- form { int16 offset, delta; void *pfn; }.
-
- In normal virtual function tables, OFFSET is unused.
- DELTA is the amount which is added to the apparent object's base
- address in order to point to the actual object to which the
- virtual function should be applied.
- 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] == '_')
-
-
-/* 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;
-
-/* True if we are nested inside psymtab_to_symtab. */
-
-extern int currently_reading_symtab;
-
-/* From utils.c. */
-extern int demangle;
-extern int asm_demangle;
-
-/* symtab.c lookup functions */
-
-/* lookup a symbol table by source file name */
-
-extern struct symtab *
-lookup_symtab PARAMS ((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 **));
-
-/* lookup a symbol by name, within a specified block */
-
-extern struct symbol *
-lookup_block_symbol PARAMS ((const struct block *, 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_union PARAMS ((char *, struct block *));
-
-extern struct type *
-lookup_enum PARAMS ((char *, struct block *));
-
-/* lookup the function corresponding to the block */
-
-extern struct symbol *
-block_function PARAMS ((struct block *));
-
-/* from blockframe.c: */
-
-/* lookup the function symbol corresponding to the address */
-
-extern struct symbol *
-find_pc_function PARAMS ((CORE_ADDR));
-
-/* lookup the function corresponding to the address and section */
-
-extern struct symbol *
-find_pc_sect_function PARAMS ((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 void
-clear_pc_function_cache PARAMS ((void));
-
-extern int
-find_pc_sect_partial_function PARAMS ((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 *));
-
-/* lookup partial symbol table by address */
-
-extern struct partial_symtab *
-find_pc_psymtab PARAMS ((CORE_ADDR));
-
-/* lookup partial symbol table by address and section */
-
-extern struct partial_symtab *
-find_pc_sect_psymtab PARAMS ((CORE_ADDR, asection *));
-
-/* lookup full symbol table by address */
-
-extern struct symtab *
-find_pc_symtab PARAMS ((CORE_ADDR));
-
-/* lookup full symbol table by address and section */
-
-extern struct symtab *
-find_pc_sect_symtab PARAMS ((CORE_ADDR, asection *));
-
-/* lookup partial symbol by address */
-
-extern struct partial_symbol *
-find_pc_psymbol PARAMS ((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 int
-find_pc_line_pc_range PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *));
-
-extern int
-contained_in PARAMS ((struct block *, struct block *));
-
-extern void
-reread_symbols PARAMS ((void));
-
-extern struct type *
-lookup_transparent_type PARAMS ((const char *));
-
-
-/* Macro for name of symbol to indicate a file compiled with gcc. */
-#ifndef GCC_COMPILED_FLAG_SYMBOL
-#define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled."
-#endif
-
-/* Macro for name of symbol to indicate a file compiled with gcc2. */
-#ifndef GCC2_COMPILED_FLAG_SYMBOL
-#define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled."
-#endif
-
-/* 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 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 *));
-
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
-extern CORE_ADDR find_stab_function_addr PARAMS ((char *,
- struct partial_symtab *,
- struct objfile *));
-#endif
-
-extern struct minimal_symbol *
-lookup_minimal_symbol PARAMS ((const char *, const char *, struct objfile *));
-
-extern struct minimal_symbol *
-lookup_minimal_symbol_text PARAMS ((const char *, const char *, struct objfile *));
-
-struct minimal_symbol *
-lookup_minimal_symbol_solib_trampoline PARAMS ((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_by_pc_section PARAMS ((CORE_ADDR, asection *));
-
-extern struct minimal_symbol *
-lookup_solib_trampoline_symbol_by_pc PARAMS ((CORE_ADDR));
-
-extern CORE_ADDR
-find_solib_trampoline_target PARAMS ((CORE_ADDR));
-
-extern void
-init_minimal_symbol_collection PARAMS ((void));
-
-extern void
-discard_minimal_symbols PARAMS ((int));
-
-extern void
-install_minimal_symbols PARAMS ((struct objfile *));
-
-/* Sort all the minimal symbols in OBJFILE. */
-
-extern void msymbols_sort PARAMS ((struct objfile *objfile));
-
-struct symtab_and_line
-{
- struct symtab *symtab;
- 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. */
- int line;
-
- CORE_ADDR pc;
- CORE_ADDR end;
-};
-
-#define INIT_SAL(sal) { \
- (sal)->symtab = 0; \
- (sal)->section = 0; \
- (sal)->line = 0; \
- (sal)->pc = 0; \
- (sal)->end = 0; \
-}
-
-struct symtabs_and_lines
-{
- struct symtab_and_line *sals;
- int nelts;
-};
-
-
-
-/* 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 {
- 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;
- /* 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. */
-};
-
-#define CURRENT_EXCEPTION_KIND (current_exception_event->kind)
-#define CURRENT_EXCEPTION_CATCH_SAL (current_exception_event->catch_sal)
-#define CURRENT_EXCEPTION_CATCH_LINE (current_exception_event->catch_sal.line)
-#define CURRENT_EXCEPTION_CATCH_FILE (current_exception_event->catch_sal.symtab->filename)
-#define CURRENT_EXCEPTION_CATCH_PC (current_exception_event->catch_sal.pc)
-#define CURRENT_EXCEPTION_THROW_SAL (current_exception_event->throw_sal)
-#define CURRENT_EXCEPTION_THROW_LINE (current_exception_event->throw_sal.line)
-#define CURRENT_EXCEPTION_THROW_FILE (current_exception_event->throw_sal.symtab->filename)
-#define CURRENT_EXCEPTION_THROW_PC (current_exception_event->throw_sal.pc)
-
-
-/* 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));
-
-/* 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 *));
-
-/* Given a symtab and line number, return the pc there. */
-
-extern int
-find_line_pc PARAMS ((struct symtab *, int, 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 *));
-
-/* 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_1 PARAMS ((char **, int, struct symtab *, int, char ***));
-
-#if MAINTENANCE_CMDS
-
-/* Symmisc.c */
-
-void
-maintenance_print_symbols PARAMS ((char *, int));
-
-void
-maintenance_print_psymbols PARAMS ((char *, int));
-
-void
-maintenance_print_msymbols PARAMS ((char *, int));
-
-void
-maintenance_print_objfiles PARAMS ((char *, int));
-
-void
-maintenance_check_symtabs PARAMS ((char *, int));
-
-/* maint.c */
-
-void
-maintenance_print_statistics PARAMS ((char *, int));
-
-#endif
-
-extern void
-free_symtab PARAMS ((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 objfile *
-symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int));
-
-/* source.c */
-
-extern int
-identify_source_line PARAMS ((struct symtab *, int, int, CORE_ADDR));
-
-extern void
-print_source_lines PARAMS ((struct symtab *, int, int, int));
-
-extern void
-forget_cached_source_info PARAMS ((void));
-
-extern void
-select_source_symtab PARAMS ((struct symtab *));
-
-extern char **make_symbol_completion_list PARAMS ((char *, char *));
-
-extern struct symbol **
-make_symbol_overload_list PARAMS ((struct symbol *));
-
-/* symtab.c */
-
-extern struct partial_symtab *
-find_main_psymtab PARAMS ((void));
-
-/* blockframe.c */
-
-extern struct blockvector *
-blockvector_for_pc PARAMS ((CORE_ADDR, int *));
-
-extern struct blockvector *
-blockvector_for_pc_sect PARAMS ((CORE_ADDR, asection *, int *,
- struct symtab *));
-
-/* symfile.c */
-
-extern void
-clear_symtab_users PARAMS ((void));
-
-extern enum language
-deduce_language_from_filename PARAMS ((char *));
-
-/* symtab.c */
-
-extern int
-in_prologue PARAMS ((CORE_ADDR pc, CORE_ADDR func_start));
-
-extern struct symbol *
-fixup_symbol_section PARAMS ((struct symbol *, struct 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! */
-struct symbol_search
-{
- /* The block in which the match was found. Could be, for example,
- STATIC_BLOCK or GLOBAL_BLOCK. */
- int block;
-
- /* Information describing what was found.
-
- If symtab abd symbol are NOT NULL, then information was found
- for this match. */
- struct symtab *symtab;
- struct symbol *symbol;
-
- /* If msymbol is non-null, then a match was made on something for
- which only minimal_symbols exist. */
- struct minimal_symbol *msymbol;
-
- /* A link to the next match, or NULL for the end. */
- 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 *));
-
-#endif /* !defined(SYMTAB_H) */