/* Symbol table definitions for GDB.
Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1997, 1998, 1999, 2000, 2001
+ 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GDB.
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. */
+{
+ /* 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;
+ 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). */
+ /* 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;
+ 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;
+ 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;
- }
- value;
+ struct symbol *chain;
+ }
+ value;
- /* Since one and only one language can apply, wrap the language specific
- information inside a union. */
+ /* 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;
+ union
+ {
+ struct cplus_specific /* For C++ */
+ /* and Java */
+ {
+ char *demangled_name;
+ }
+ cplus_specific;
#if 0
- /* OBSOLETE struct chill_specific *//* For Chill */
- /* OBSOLETE { */
- /* OBSOLETE char *demangled_name; */
- /* OBSOLETE } */
- /* OBSOLETE chill_specific; */
+/* OBSOLETE struct chill_specific *//* For Chill */
+ /* OBSOLETE { */
+ /* OBSOLETE char *demangled_name; */
+ /* OBSOLETE } */
+ /* OBSOLETE chill_specific; */
#endif
- }
- language_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. */
+ /* 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;
+ 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). */
+ /* 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;
+ short section;
- /* The bfd section associated with this symbol. */
+ /* The bfd section associated with this symbol. */
- asection *bfd_section;
- };
+ asection *bfd_section;
+};
extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *);
#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);
+ struct obstack *obstack);
+
-
/* Macro that returns the demangled name for a symbol based on the language
for that symbol. If no demangled name exists, returns NULL. */
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 general symbol info required for all types of symbols.
- The SYMBOL_VALUE_ADDRESS contains the address that this symbol
- corresponds to. */
+ The SYMBOL_VALUE_ADDRESS contains the address that this symbol
+ corresponds to. */
- struct general_symbol_info ginfo;
+ 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.
+ /* 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. */
+ 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;
+ char *info;
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
- /* Which source file is this symbol in? Only relevant for mst_file_*. */
- char *filename;
+ /* 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;
-
- /* 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;
- };
+ /* 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;
+
+ /* 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.
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];
- };
+{
+ /* 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]
#define FIRST_LOCAL_BLOCK 2
struct block
- {
+{
- /* Addresses in the executable code that are in this block. */
+ /* Addresses in the executable code that are in this block. */
- CORE_ADDR startaddr;
- CORE_ADDR endaddr;
+ CORE_ADDR startaddr;
+ CORE_ADDR endaddr;
- /* The symbol that names this block, if the block is the body of a
- function; otherwise, zero. */
+ /* The symbol that names this block, if the block is the body of a
+ function; otherwise, zero. */
- struct symbol *function;
+ struct symbol *function;
- /* The `struct block' for the containing block, or 0 if none.
+ /* 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. */
+ 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;
+ 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.
+ /* 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. */
+ If there is no function corresponding to this block, this meaning
+ of this flag is undefined. */
- unsigned char gcc_compile_flag;
+ 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 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 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. */
+ 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. */
+ /* If this is really a hashtable of the symbols, this flag is 1. */
- unsigned char hashtable;
+ unsigned char hashtable;
- /* Number of local symbols. */
+ /* Number of local symbols. */
- int nsyms;
+ 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. */
+ /* 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];
- };
+ struct symbol *sym[1];
+};
#define BLOCK_START(bl) (bl)->startaddr
#define BLOCK_END(bl) (bl)->endaddr
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,
+{
+ /* 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. */
- /* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
- function names, typedef names and enum type values. */
+ UNDEF_NAMESPACE,
- VAR_NAMESPACE,
+ /* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
+ function names, typedef names and enum type values. */
- /* 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. */
+ VAR_NAMESPACE,
- STRUCT_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. */
- /* LABEL_NAMESPACE may be used for names of labels (for gotos);
- currently it is not used and labels are not recorded at all. */
+ STRUCT_NAMESPACE,
- LABEL_NAMESPACE,
+ /* LABEL_NAMESPACE may be used for names of labels (for gotos);
+ currently it is not used and labels are not recorded at all. */
- /* Searching namespaces. These overlap with VAR_NAMESPACE, providing
- some granularity with the search_symbols function. */
+ LABEL_NAMESPACE,
- /* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and
- METHODS_NAMESPACE */
- VARIABLES_NAMESPACE,
+ /* Searching namespaces. These overlap with VAR_NAMESPACE, providing
+ some granularity with the search_symbols function. */
- /* All functions -- for some reason not methods, though. */
- FUNCTIONS_NAMESPACE,
+ /* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and
+ METHODS_NAMESPACE */
+ VARIABLES_NAMESPACE,
- /* All defined types */
- TYPES_NAMESPACE,
+ /* All functions -- for some reason not methods, though. */
+ FUNCTIONS_NAMESPACE,
- /* All class methods -- why is this separated out? */
- METHODS_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 */
+{
+ /* Not used; catches errors */
- LOC_UNDEF,
+ LOC_UNDEF,
- /* Value is constant int SYMBOL_VALUE, host byteorder */
+ /* Value is constant int SYMBOL_VALUE, host byteorder */
- LOC_CONST,
+ LOC_CONST,
- /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
+ /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
- LOC_STATIC,
+ LOC_STATIC,
- /* Value is in register. SYMBOL_VALUE is the register number. */
+ /* Value is in register. SYMBOL_VALUE is the register number. */
- LOC_REGISTER,
+ LOC_REGISTER,
- /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */
+ /* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */
- LOC_ARG,
+ LOC_ARG,
- /* Value address is at SYMBOL_VALUE offset in arglist. */
+ /* Value address is at SYMBOL_VALUE offset in arglist. */
- LOC_REF_ARG,
+ 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.
+ /* 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). */
+ 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,
+ 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. */
+ /* 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,
+ LOC_REGPARM_ADDR,
- /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */
+ /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */
- LOC_LOCAL,
+ LOC_LOCAL,
- /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace
- STRUCT_NAMESPACE all have this class. */
+ /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace
+ STRUCT_NAMESPACE all have this class. */
- LOC_TYPEDEF,
+ LOC_TYPEDEF,
- /* Value is address SYMBOL_VALUE_ADDRESS in the code */
+ /* Value is address SYMBOL_VALUE_ADDRESS in the code */
- LOC_LABEL,
+ 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. */
+ /* 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,
+ LOC_BLOCK,
- /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in
- target byte order. */
+ /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in
+ target byte order. */
- LOC_CONST_BYTES,
+ 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. */
+ /* 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,
+ 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.
+ /* 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. */
+ 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,
+ LOC_BASEREG,
- /* Same as LOC_BASEREG but it is an argument. */
+ /* Same as LOC_BASEREG but it is an argument. */
- LOC_BASEREG_ARG,
+ 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. */
+ /* 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,
+ LOC_UNRESOLVED,
- /* Value is at a thread-specific location calculated by a
- target-specific method. */
+ /* Value is at a thread-specific location calculated by a
+ target-specific method. */
- LOC_THREAD_LOCAL_STATIC,
+ LOC_THREAD_LOCAL_STATIC,
- /* The variable does not actually exist in the program.
- The value is ignored. */
+ /* The variable does not actually exist in the program.
+ The value is ignored. */
- LOC_OPTIMIZED_OUT,
+ 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.
- */
+ /* 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
-
- };
+ LOC_INDIRECT
+};
/* Linked list of symbol's live ranges. */
struct range_list
- {
- CORE_ADDR start;
- CORE_ADDR end;
- struct range_list *next;
- };
+{
+ 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 *sym;
+ struct alias_list *next;
+};
struct symbol
- {
+{
- /* The general symbol info required for all types of symbols. */
+ /* The general symbol info required for all types of symbols. */
- struct general_symbol_info ginfo;
+ struct general_symbol_info ginfo;
- /* Data type of value */
+ /* Data type of value */
- struct type *type;
+ struct type *type;
- /* Name space code. */
+ /* 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. */
+ /* 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;
+ namespace_enum namespace BYTE_BITFIELD;
- /* Address class */
+ /* Address class */
- enum address_class aclass BYTE_BITFIELD;
+ 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? */
+ /* 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;
+ unsigned short line;
- /* Some symbols require an additional value to be recorded on a per-
- symbol basis. Stash those values here. */
+ /* 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;
+ 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;
+ /* 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;
+ /* 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;
- };
+ struct symbol *hash_next;
+};
#define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
normal symtab once the partial_symtab has been referenced. */
struct partial_symbol
- {
+{
- /* The general symbol info required for all types of symbols. */
+ /* The general symbol info required for all types of symbols. */
- struct general_symbol_info ginfo;
+ struct general_symbol_info ginfo;
- /* Name space code. */
+ /* Name space code. */
- namespace_enum namespace BYTE_BITFIELD;
+ namespace_enum namespace BYTE_BITFIELD;
- /* Address class (for info_symbols) */
+ /* Address class (for info_symbols) */
- enum address_class aclass BYTE_BITFIELD;
+ enum address_class aclass BYTE_BITFIELD;
- };
+};
#define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
line numbers and addresses in the program text. */
struct sourcevector
- {
- int length; /* Number of source files described */
- struct source *source[1]; /* Descriptions of the files */
- };
+{
+ 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
waste much space. */
struct linetable_entry
- {
- int line;
- CORE_ADDR pc;
- };
+{
+ 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
zero length. */
struct linetable
- {
- int nitems;
+{
+ 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];
- };
+ /* 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;
- };
+{
+ 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.
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) \
((whichone == -1) \
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 designated 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;
- /* 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;
+ /* 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;
- /* Name of this source file. */
+ /* Name of this source file. */
- char *filename;
+ char *filename;
- /* Directory in which it was compiled, or NULL if we don't know. */
+ /* Directory in which it was compiled, or NULL if we don't know. */
- char *dirname;
+ 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? */
+ /* 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;
+ 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. */
+ /* 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;
+ char *free_ptr;
- /* Total number of lines found in source file. */
+ /* Total number of lines found in source file. */
- int nlines;
+ 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. */
+ /* 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;
+ int *line_charpos;
- /* Language of this source file. */
+ /* Language of this source file. */
- enum language language;
+ 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. */
+ /* 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;
+ char *debugformat;
- /* String of version information. May be zero. */
+ /* String of version information. May be zero. */
- char *version;
+ char *version;
- /* Full name of file as found by searching the source path.
- NULL if not yet known. */
+ /* Full name of file as found by searching the source path.
+ NULL if not yet known. */
- char *fullname;
+ char *fullname;
- /* Object file from which this symbol information was read. */
+ /* Object file from which this symbol information was read. */
- struct objfile *objfile;
+ struct objfile *objfile;
- };
+};
#define BLOCKVECTOR(symtab) (symtab)->blockvector
#define LINETABLE(symtab) (symtab)->linetable
style execution of a bunch of .o's. */
struct partial_symtab
- {
+{
- /* Chain of all existing partial symtabs. */
+ /* Chain of all existing partial symtabs. */
- struct partial_symtab *next;
+ struct partial_symtab *next;
- /* Name of the source file which this partial_symtab defines */
+ /* Name of the source file which this partial_symtab defines */
- char *filename;
+ char *filename;
- /* Full path of the source file. NULL if not known. */
+ /* Full path of the source file. NULL if not known. */
- char *fullname;
+ char *fullname;
- /* Information about the object file from which symbols should be read. */
+ /* Information about the object file from which symbols should be read. */
- struct objfile *objfile;
+ 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;
+ struct section_offsets *section_offsets;
- /* Range of text addresses covered by this file; texthigh is the
- beginning of the next section. */
+ /* Range of text addresses covered by this file; texthigh is the
+ beginning of the next section. */
- CORE_ADDR textlow;
- CORE_ADDR texthigh;
+ 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. */
+ /* 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;
+ struct partial_symtab **dependencies;
- int number_of_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[]. */
+ /* 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;
+ 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[]. */
+ /* 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;
+ 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. */
+ /* 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;
+ struct symtab *symtab;
- /* Pointer to function which will read in the symtab corresponding to
- this psymtab. */
+ /* Pointer to function which will read in the symtab corresponding to
+ this psymtab. */
- void (*read_symtab) (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
- 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) */
+ /* 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;
+ char *read_symtab_private;
- /* Non-zero if the symtab corresponding to this psymtab has been readin */
+ /* Non-zero if the symtab corresponding to this psymtab has been readin */
- unsigned char readin;
- };
+ unsigned char readin;
+};
/* A fast way to get from a psymtab to its symtab (after the first time). */
#define PSYMTAB_TO_SYMTAB(pst) \
extern void msymbols_sort (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;
- };
+{
+ 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; \
}
struct symtabs_and_lines
- {
- struct symtab_and_line *sals;
- int nelts;
- };
+{
+ struct symtab_and_line *sals;
+ int nelts;
+};
\f
/* Enums for exception-handling support */
enum exception_event_kind
- {
- EX_EVENT_THROW,
- EX_EVENT_CATCH
- };
+{
+ 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. */
- };
+{
+ 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)
extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
-extern struct symtab_and_line find_function_start_sal (struct symbol *sym, int);
+extern struct symtab_and_line find_function_start_sal (struct symbol *sym,
+ int);
/* blockframe.c */
/* When using search_symbols, a list of the following structs is returned.
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,
- STATIC_BLOCK or GLOBAL_BLOCK. */
- int block;
+{
+ /* The block in which the match was found. Could be, for example,
+ STATIC_BLOCK or GLOBAL_BLOCK. */
+ int block;
- /* Information describing what was found.
+ /* 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 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;
+ /* 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;
- };
+ /* A link to the next match, or NULL for the end. */
+ struct symbol_search *next;
+};
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 *);
+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);
+extern /*const */ char *main_name (void);
#endif /* !defined(SYMTAB_H) */
projects / binutils-gdb.git / commitdiff