/* Symbol table definitions for GDB.
- Copyright (C) 1986, 1989, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1986, 89, 91, 92, 93, 94, 95, 96, 1998
+ Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#if !defined (SYMTAB_H)
#define SYMTAB_H 1
#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. */
-
-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. */
+ be recorded along with each symbol.
- char *name;
+ These fields are ordered to encourage good packing, since we frequently
+ have tens or hundreds of thousands of these. */
- /* 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
- {
- long value;
+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. */
- struct block *block;
+ char *name;
- char *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). */
- CORE_ADDR address;
+ 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;
- /* for opaque typedef struct chain */
+ struct block *block;
- struct symbol *chain;
- }
- value;
+ char *bytes;
- /* Record the source code language that applies to this symbol.
- This is used to select one of the fields from the language specific
- union below. */
+ CORE_ADDR address;
- enum language language;
+ /* for opaque typedef struct chain */
- /* Since one and only one language can apply, wrap the language specific
- information inside a union. */
+ struct symbol *chain;
+ }
+ value;
- union
- {
- struct cplus_specific /* For C++ */
- {
- char *demangled_name;
- } cplus_specific;
- struct chill_specific /* For Chill */
- {
- char *demangled_name;
- } chill_specific;
- } language_specific;
+ /* Since one and only one language can apply, wrap the language specific
+ information inside a union. */
- /* 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. */
+ union
+ {
+ struct cplus_specific /* For C++ */
+ /* and 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;
+ };
- int 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.value
+#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
-
-extern int demangle; /* We reference it, so go ahead and declare it. */
-
/* 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) \
+ if (SYMBOL_LANGUAGE (symbol) == language_cplus \
+ || SYMBOL_LANGUAGE (symbol) == language_java \
+ ) \
{ \
SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
} \
SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
} \
} \
+ if (SYMBOL_LANGUAGE (symbol) == language_java) \
+ { \
+ demangled = \
+ cplus_demangle (SYMBOL_NAME (symbol), \
+ DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); \
+ if (demangled != NULL) \
+ { \
+ SYMBOL_LANGUAGE (symbol) = language_java; \
+ SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
+ obsavestring (demangled, strlen (demangled), (obstack)); \
+ free (demangled); \
+ } \
+ else \
+ { \
+ SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
+ } \
+ } \
if (demangled == NULL \
&& (SYMBOL_LANGUAGE (symbol) == language_chill \
|| SYMBOL_LANGUAGE (symbol) == language_auto)) \
#define SYMBOL_DEMANGLED_NAME(symbol) \
(SYMBOL_LANGUAGE (symbol) == language_cplus \
+ || SYMBOL_LANGUAGE (symbol) == language_java \
? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \
: (SYMBOL_LANGUAGE (symbol) == language_chill \
? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \
? SYMBOL_DEMANGLED_NAME (symbol) \
: SYMBOL_NAME (symbol))
-/* From utils.c. */
-extern int demangle;
-extern int asm_demangle;
-
/* 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
(STREQ (SYMBOL_NAME (symbol), (name)) \
|| (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
&& strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0))
-
+
/* Macro that tests a symbol for an re-match against the last compiled regular
expression. First test the unencoded name, then look for and test a C++
encoded name if it exists.
(re_exec (SYMBOL_NAME (symbol)) != 0 \
|| (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
&& re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0))
-
+
/* Define a simple structure used to hold some very basic information about
all defined global symbols (text, data, bss, abs, etc). The only required
information is the general_symbol_info.
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 that
- The AMD 29000 tdep.c uses it to remember things it has decoded from the
- instructions in the function header, 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 allocated 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.
- char *info;
+ 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. */
- /* 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. */
+ char *info;
- 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) */
- } type;
+#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
-
\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;
- /* 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
arguments. */
#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40 && BLOCK_FUNCTION (bl) == NULL)
-
\f
+
/* Represent one symbol name; a variable, constant, function or typedef. */
/* Different name spaces for symbols. Looking up a symbol specifies a
namespace and ignores symbol definitions in other name spaces. */
-enum 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. */
+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. */
- UNDEF_NAMESPACE,
+ STRUCT_NAMESPACE,
- /* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
- function names, typedef names and enum type values. */
+ /* LABEL_NAMESPACE may be used for names of labels (for gotos);
+ currently it is not used and labels are not recorded at all. */
- VAR_NAMESPACE,
+ LABEL_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. */
+ /* Searching namespaces. These overlap with VAR_NAMESPACE, providing
+ some granularity with the search_symbols function. */
- STRUCT_NAMESPACE,
+ /* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and
+ METHODS_NAMESPACE */
+ VARIABLES_NAMESPACE,
- /* LABEL_NAMESPACE may be used for names of labels (for gotos);
- currently it is not used and labels are not recorded at all. */
+ /* All functions -- for some reason not methods, though. */
+ FUNCTIONS_NAMESPACE,
- LABEL_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,
- /* The variable does not actually exist in the program.
- The value is ignored. */
+ /* 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.
- LOC_OPTIMIZED_OUT
-};
+ 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. */
-struct symbol
-{
+ LOC_BASEREG,
- /* The general symbol info required for all types of symbols. */
+ /* Same as LOC_BASEREG but it is an argument. */
- struct general_symbol_info ginfo;
+ LOC_BASEREG_ARG,
- /* Name space code. */
+ /* 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. */
- enum namespace namespace;
+ LOC_UNRESOLVED,
- /* Address class */
+ /* Value is at a thread-specific location calculated by a
+ target-specific method. */
- enum address_class class;
+ LOC_THREAD_LOCAL_STATIC,
- /* Data type of value */
+ /* The variable does not actually exist in the program.
+ The value is ignored. */
- struct type *type;
+ LOC_OPTIMIZED_OUT,
- /* 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? */
+ /* 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.
+ */
- unsigned short line;
-
- /* Some symbols require an additional value to be recorded on a per-
- symbol basis. Stash those values here. */
+ LOC_INDIRECT
- union
- {
- /* for OP_BASEREG in DWARF location specs */
- struct
- {
- short regno_valid; /* 0 == regno invalid; !0 == regno valid */
- short regno; /* base register number {0, 1, 2, ...} */
- } basereg;
- }
- aux_value;
+ };
-};
+/* Linked list of symbol's live ranges. */
-#define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
-#define SYMBOL_CLASS(symbol) (symbol)->class
-#define SYMBOL_TYPE(symbol) (symbol)->type
-#define SYMBOL_LINE(symbol) (symbol)->line
-#define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg.regno
+struct range_list
+ {
+ CORE_ADDR start;
+ CORE_ADDR end;
+ struct range_list *next;
+ };
-/* This currently fails because some symbols are not being initialized
- to zero on allocation, and no code is currently setting this value.
- Basereg handling will probably change significantly in the next release.
- FIXME -fnf */
+/* Linked list of aliases for a particular main/primary symbol. */
+struct alias_list
+ {
+ struct symbol *sym;
+ struct alias_list *next;
+ };
-#if 0
-#define SYMBOL_BASEREG_VALID(symbol) (symbol)->aux_value.basereg.regno_valid
-#else
-#define SYMBOL_BASEREG_VALID(symbol) 0
+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
\f
/* A partial_symbol records the name, namespace, and address class of
symbols whose types we have not parsed yet. For functions, it also
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. */
- enum namespace namespace;
+ namespace_enum namespace BYTE_BITFIELD;
- /* Address class (for info_symbols) */
+ /* Address class (for info_symbols) */
- enum address_class class;
+ enum address_class aclass BYTE_BITFIELD;
-};
+ };
#define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
-#define PSYMBOL_CLASS(psymbol) (psymbol)->class
-
+#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
\f
+
/* Source-file information. This describes the relation between source files,
ine numbers and addresses in the program text. */
struct sourcevector
-{
- int length; /* Number of source files described */
- struct source *source[1]; /* Descriptions of the files */
-};
+ {
+ 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;
-};
-
-/* The order of entries in the linetable is significant.
+ {
+ int line;
+ CORE_ADDR pc;
+ };
- It should generally be in ascending line number order. Line table
- entries for a function at lines 10-40 should come before entries
- for a function at lines 50-70.
+/* 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).
- A for statement looks like this
+ Example: a C for statement generally looks like this
- 10 0x100 - for the init/test part of a for stmt.
- 20 0x200
- 30 0x300
- 10 0x400 - for the increment part of a for stmt.
+ 10 0x100 - for the init/test part of a for stmt.
+ 20 0x200
+ 30 0x300
+ 10 0x400 - for the increment part of a for stmt.
- FIXME: this description is incomplete. coffread.c is said to get
- the linetable order wrong (would arrange_linenos from xcoffread.c
- work for normal COFF too?). */
+ */
struct linetable
-{
- int nitems;
- struct linetable_entry item[1];
-};
+ {
+ 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;
-};
+ {
+ 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.
struct section_offsets
{
- CORE_ADDR offsets[1]; /* As many as needed. */
+ CORE_ADDR offsets[1]; /* As many as needed. */
};
#define ANOFFSET(secoff, whichone) (secoff->offsets[whichone])
-/* Each source file is represented by a struct symtab.
+/* 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
struct symtab *next;
- /* List of all symbol scope blocks for this symtab. */
+ /* 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. */
+ Can be NULL if none. Never shared between different symtabs. */
struct linetable *linetable;
/* Section in objfile->section_offsets for the blockvector and
- the linetable. */
+ 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
+ should be designated the primary, so that the blockvector
is relocated exactly once by objfile_relocate. */
int primary;
/* 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. */
+ 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. */
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;
struct objfile *objfile;
- /* Anything extra for this symtab. This is for target machines
- with special debugging info of some sort (which cannot just
- be represented in a normal symtab). */
-
-#if defined (EXTRA_SYMTAB_INFO)
- EXTRA_SYMTAB_INFO
-#endif
-
};
#define BLOCKVECTOR(symtab) (symtab)->blockvector
#define LINETABLE(symtab) (symtab)->linetable
-
\f
+
/* Each source file that has not been fully read in is represented by
a partial_symtab. This contains the information on where in the
executable the debugging symbols for a specific file are, and a
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;
- /* 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) PARAMS ((struct partial_symtab *));
+ 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) */
+ /* 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) \
((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst))
-
\f
+
/* The virtual function table is now an array of structures which have the
form { int16 offset, delta; void *pfn; }.
PFN is a pointer to the virtual function.
Note that this macro is g++ specific (FIXME). */
-
+
#define VTBL_FNADDR_OFFSET 2
/* Macro that yields non-zero value iff NAME is the prefix for C++ operator
Note that this macro is g++ specific (FIXME). */
#define OPNAME_PREFIX_P(NAME) \
- ((NAME)[0] == 'o' && (NAME)[1] == 'p' && (NAME)[2] == CPLUS_MARKER)
+ ((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). */
+ 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)[3] == CPLUS_MARKER && !strncmp ((NAME), "_vt", 3))
+ ((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] == '_' && (NAME)[1] == CPLUS_MARKER && (NAME)[2] == '_')
-
+ ((NAME)[0] == '_' && is_cplus_marker ((NAME)[1]) && (NAME)[2] == '_')
\f
+
/* External variables and functions for the objects described above. */
/* This symtab variable specifies the current file for printing source lines */
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_symtab PARAMS ((char *));
+
+/* lookup a symbol by name (optional block, optional symtab) */
extern struct symbol *
-lookup_symbol PARAMS ((const char *, const struct block *,
- const enum namespace, int *, struct symtab **));
+ 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 enum namespace));
+ 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 *));
+ lookup_struct PARAMS ((char *, struct block *));
extern struct type *
-lookup_union PARAMS ((char *, struct block *));
+ lookup_union PARAMS ((char *, struct block *));
extern struct type *
-lookup_enum PARAMS ((char *, struct block *));
+ 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 *
-block_function PARAMS ((struct block *));
+ find_pc_function PARAMS ((CORE_ADDR));
+
+/* lookup the function corresponding to the address and section */
extern struct symbol *
-find_pc_function PARAMS ((CORE_ADDR));
+ 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 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_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_psymtab PARAMS ((CORE_ADDR));
+ 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_symtab PARAMS ((CORE_ADDR));
+ 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_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR));
+ 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 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));
+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 void
-prim_record_minimal_symbol_and_info PARAMS ((const char *, CORE_ADDR,
- enum minimal_symbol_type,
- char *info, int section));
+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 PARAMS ((const char *, struct objfile *));
+ lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR));
extern struct minimal_symbol *
-lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR));
+ 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
install_minimal_symbols PARAMS ((struct objfile *));
-struct symtab_and_line
-{
- struct symtab *symtab;
+/* Sort all the minimal symbols in OBJFILE. */
- /* 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;
+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;
+ };
- 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;
-};
+ {
+ struct symtab_and_line *sals;
+ int nelts;
+ };
+\f
+
+
+/* Some types and macros needed for exception catchpoints.
+ Can't put these in target.h because symtab_and_line isn't
+ known there. This file will be included by breakpoint.c,
+ hppa-tdep.c, etc. */
+
+/* Enums for exception-handling support */
+enum exception_event_kind
+ {
+ 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)
+\f
/* 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 CORE_ADDR
-find_line_pc PARAMS ((struct symtab *, int));
+extern int
+find_line_pc PARAMS ((struct symtab *, int, CORE_ADDR *));
-extern int
-find_line_pc_range PARAMS ((struct symtab *, int, CORE_ADDR *, CORE_ADDR *));
+extern int
+find_line_pc_range PARAMS ((struct symtab_and_line,
+ CORE_ADDR *, CORE_ADDR *));
extern void
resolve_sal_pc PARAMS ((struct symtab_and_line *));
decode_line_spec_1 PARAMS ((char *, int));
extern struct symtabs_and_lines
-decode_line_1 PARAMS ((char **, int, struct symtab *, int));
+decode_line_1 PARAMS ((char **, int, struct symtab *, int, char ***));
/* Symmisc.c */
-#if MAINTENANCE_CMDS
-
void
maintenance_print_symbols PARAMS ((char *, int));
void
maintenance_print_objfiles PARAMS ((char *, int));
-#endif
+void
+maintenance_check_symtabs PARAMS ((char *, int));
+
+/* maint.c */
+
+void
+maintenance_print_statistics PARAMS ((char *, int));
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 *));
+ 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));
+ symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int, int, int));
/* source.c */
-extern int frame_file_full_name; /* in stack.c */
-
extern int
identify_source_line PARAMS ((struct symtab *, int, int, CORE_ADDR));
extern char **make_symbol_completion_list PARAMS ((char *, char *));
-/* symtab.c */
+extern struct symbol **
+ make_symbol_overload_list PARAMS ((struct symbol *));
-extern void
-clear_symtab_users_once PARAMS ((void));
+/* symtab.c */
extern struct partial_symtab *
-find_main_psymtab PARAMS ((void));
+ find_main_psymtab PARAMS ((void));
/* blockframe.c */
extern struct blockvector *
-blockvector_for_pc PARAMS ((CORE_ADDR, int *));
+ 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) */
projects / thirdparty / binutils-gdb.git / blobdiff