#include <string>
#include "gdbsupport/gdb_vecs.h"
#include "gdbtypes.h"
+#include "gdb_obstack.h"
#include "gdb_regex.h"
#include "gdbsupport/enum-flags.h"
#include "gdbsupport/function-view.h"
#include "gdbsupport/gdb_optional.h"
+#include "gdbsupport/gdb_string_view.h"
#include "gdbsupport/next-iterator.h"
#include "completer.h"
extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *);
-/* Note that all the following SYMBOL_* macros are used with the
- SYMBOL argument being either a partial symbol or
- a full symbol. Both types have a ginfo field. In particular
- the SYMBOL_SET_LANGUAGE, SYMBOL_DEMANGLED_NAME, etc.
- macros cannot be entirely substituted by
- functions, unless the callers are changed to pass in the ginfo
- field only, instead of the SYMBOL parameter. */
-
-#define SYMBOL_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_VALUE_COMMON_BLOCK(symbol) (symbol)->ginfo.value.common_block
-#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
+/* Return the address of SYM. The MAYBE_COPIED flag must be set on
+ SYM. If SYM appears in the main program's minimal symbols, then
+ that minsym's address is returned; otherwise, SYM's address is
+ returned. This should generally only be used via the
+ SYMBOL_VALUE_ADDRESS macro. */
+
+extern CORE_ADDR get_symbol_address (const struct symbol *sym);
+
+/* Note that these macros only work with symbol, not partial_symbol. */
+
+#define SYMBOL_VALUE(symbol) (symbol)->value.ivalue
+#define SYMBOL_VALUE_ADDRESS(symbol) \
+ (((symbol)->maybe_copied) ? get_symbol_address (symbol) \
+ : ((symbol)->value.address))
+#define SET_SYMBOL_VALUE_ADDRESS(symbol, new_value) \
+ ((symbol)->value.address = (new_value))
+#define SYMBOL_VALUE_BYTES(symbol) (symbol)->value.bytes
+#define SYMBOL_VALUE_COMMON_BLOCK(symbol) (symbol)->value.common_block
+#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->value.block
+#define SYMBOL_VALUE_CHAIN(symbol) (symbol)->value.chain
+#define SYMBOL_LANGUAGE(symbol) (symbol)->language
+#define SYMBOL_SECTION(symbol) (symbol)->section
#define SYMBOL_OBJ_SECTION(objfile, symbol) \
- (((symbol)->ginfo.section >= 0) \
- ? (&(((objfile)->sections)[(symbol)->ginfo.section])) \
+ (((symbol)->section >= 0) \
+ ? (&(((objfile)->sections)[(symbol)->section])) \
: NULL)
/* Initializes the language dependent portion of a symbol
depending upon the language for the symbol. */
#define SYMBOL_SET_LANGUAGE(symbol,language,obstack) \
- (symbol_set_language (&(symbol)->ginfo, (language), (obstack)))
+ (symbol_set_language ((symbol), (language), (obstack)))
extern void symbol_set_language (struct general_symbol_info *symbol,
enum language language,
struct obstack *obstack);
be terminated and either already on the objfile's obstack or
permanently allocated. */
#define SYMBOL_SET_LINKAGE_NAME(symbol,linkage_name) \
- (symbol)->ginfo.name = (linkage_name)
+ (symbol)->name = (linkage_name)
/* Set the linkage and natural names of a symbol, by demangling
- the linkage name. */
-#define SYMBOL_SET_NAMES(symbol,linkage_name,len,copy_name,objfile) \
- symbol_set_names (&(symbol)->ginfo, linkage_name, len, copy_name, \
+ the linkage name. If linkage_name may not be nullterminated,
+ copy_name must be set to true. */
+#define SYMBOL_SET_NAMES(symbol,linkage_name,copy_name,objfile) \
+ symbol_set_names ((symbol), linkage_name, copy_name, \
(objfile)->per_bfd)
extern void symbol_set_names (struct general_symbol_info *symbol,
- const char *linkage_name, int len, bool copy_name,
+ gdb::string_view linkage_name, bool copy_name,
struct objfile_per_bfd_storage *per_bfd);
/* Now come lots of name accessor macros. Short version as to when to
demangled name. */
#define SYMBOL_NATURAL_NAME(symbol) \
- (symbol_natural_name (&(symbol)->ginfo))
+ (symbol_natural_name ((symbol)))
extern const char *symbol_natural_name
(const struct general_symbol_info *symbol);
manipulation by the linker, this is the mangled name; otherwise,
it's the same as SYMBOL_NATURAL_NAME. */
-#define SYMBOL_LINKAGE_NAME(symbol) (symbol)->ginfo.name
+#define SYMBOL_LINKAGE_NAME(symbol) (symbol)->name
/* Return the demangled name for a symbol based on the language for
that symbol. If no demangled name exists, return NULL. */
#define SYMBOL_DEMANGLED_NAME(symbol) \
- (symbol_demangled_name (&(symbol)->ginfo))
+ (symbol_demangled_name ((symbol)))
extern const char *symbol_demangled_name
(const struct general_symbol_info *symbol);
The result should never be NULL. Don't use this for internal
purposes (e.g. storing in a hashtable): it's only suitable for output.
- N.B. symbol may be anything with a ginfo member,
+ N.B. symbol may be anything inheriting from general_symbol_info,
e.g., struct symbol or struct minimal_symbol. */
#define SYMBOL_PRINT_NAME(symbol) \
name. If there is no distinct demangled name, then SYMBOL_SEARCH_NAME
returns the same value (same pointer) as SYMBOL_LINKAGE_NAME. */
#define SYMBOL_SEARCH_NAME(symbol) \
- (symbol_search_name (&(symbol)->ginfo))
+ (symbol_search_name (symbol))
extern const char *symbol_search_name (const struct general_symbol_info *ginfo);
/* Return true if NAME matches the "search" name of SYMBOL, according
to the symbol's language. */
#define SYMBOL_MATCHES_SEARCH_NAME(symbol, name) \
- symbol_matches_search_name (&(symbol)->ginfo, (name))
+ symbol_matches_search_name ((symbol), (name))
/* Helper for SYMBOL_MATCHES_SEARCH_NAME that works with both symbols
and psymbols. */
the object file format may not carry that piece of information. */
unsigned int has_size : 1;
+ /* For data symbols only, if this is set, then the symbol might be
+ subject to copy relocation. In this case, a minimal symbol
+ matching the symbol's linkage name is first looked for in the
+ main objfile. If found, then that address is used; otherwise the
+ address in this symbol is used. */
+
+ unsigned maybe_copied : 1;
+
/* Minimal symbols with the same hash key are kept on a linked
list. This is the link. */
bool text_p () const;
};
+/* Return the address of MINSYM, which comes from OBJF. The
+ MAYBE_COPIED flag must be set on MINSYM. If MINSYM appears in the
+ main program's minimal symbols, then that minsym's address is
+ returned; otherwise, MINSYM's address is returned. This should
+ generally only be used via the MSYMBOL_VALUE_ADDRESS macro. */
+
+extern CORE_ADDR get_msymbol_address (struct objfile *objf,
+ const struct minimal_symbol *minsym);
+
#define MSYMBOL_TARGET_FLAG_1(msymbol) (msymbol)->target_flag_1
#define MSYMBOL_TARGET_FLAG_2(msymbol) (msymbol)->target_flag_2
#define MSYMBOL_SIZE(msymbol) ((msymbol)->size + 0)
/* The relocated address of the minimal symbol, using the section
offsets from OBJFILE. */
#define MSYMBOL_VALUE_ADDRESS(objfile, symbol) \
- ((symbol)->value.address \
- + ANOFFSET ((objfile)->section_offsets, ((symbol)->section)))
+ (((symbol)->maybe_copied) ? get_msymbol_address (objfile, symbol) \
+ : ((symbol)->value.address \
+ + ANOFFSET ((objfile)->section_offsets, ((symbol)->section))))
/* For a bound minsym, we can easily compute the address directly. */
#define BMSYMBOL_VALUE_ADDRESS(symbol) \
MSYMBOL_VALUE_ADDRESS ((symbol).objfile, (symbol).minsym)
/* All defined types */
TYPES_DOMAIN = 2,
+ /* All modules. */
+ MODULES_DOMAIN = 3,
+
/* Any type. */
- ALL_DOMAIN = 3
+ ALL_DOMAIN = 4
};
extern const char *search_domain_name (enum search_domain);
register, the CFA as defined by DWARF unwinding information, ...
So this specific method is supposed to compute the frame base address such
- as for nested fuctions, the static link computes the same address. For
+ as for nested functions, the static link computes the same address. For
instance, considering DWARF debugging information, the static link is
computed with DW_AT_static_link and this method must be used to compute
the corresponding DW_AT_frame_base attribute. */
/* This structure is space critical. See space comments at the top. */
-struct symbol
+struct symbol : public general_symbol_info, public allocate_on_obstack
{
-
- /* The general symbol info required for all types of symbols. */
-
- struct general_symbol_info ginfo;
+ symbol ()
+ /* Class-initialization of bitfields is only allowed in C++20. */
+ : domain (UNDEF_DOMAIN),
+ aclass_index (0),
+ is_objfile_owned (0),
+ is_argument (0),
+ is_inlined (0),
+ maybe_copied (0),
+ subclass (SYMBOL_NONE)
+ {
+ /* We can't use an initializer list for members of a base class, and
+ general_symbol_info needs to stay a POD type. */
+ name = nullptr;
+ value.ivalue = 0;
+ language_specific.obstack = nullptr;
+ language = language_unknown;
+ ada_mangled = 0;
+ section = 0;
+ }
/* Data type of value */
- struct type *type;
+ struct type *type = nullptr;
/* The owner of this symbol.
Which one to use is defined by symbol.is_objfile_owned. */
/* The symbol table containing this symbol. This is the file associated
with LINE. It can be NULL during symbols read-in but it is never NULL
during normal operation. */
- struct symtab *symtab;
+ struct symtab *symtab = nullptr;
/* For types defined by the architecture. */
struct gdbarch *arch;
unsigned int aclass_index : SYMBOL_ACLASS_BITS;
/* If non-zero then symbol is objfile-owned, use owner.symtab.
- Otherwise symbol is arch-owned, use owner.arch. */
+ Otherwise symbol is arch-owned, use owner.arch. */
unsigned int is_objfile_owned : 1;
/* Whether this is an inlined function (class LOC_BLOCK only). */
unsigned is_inlined : 1;
+ /* For LOC_STATIC only, if this is set, then the symbol might be
+ subject to copy relocation. In this case, a minimal symbol
+ matching the symbol's linkage name is first looked for in the
+ main objfile. If found, then that address is used; otherwise the
+ address in this symbol is used. */
+
+ unsigned maybe_copied : 1;
+
/* The concrete type of this symbol. */
ENUM_BITFIELD (symbol_subclass_kind) subclass : 2;
to debug files longer than 64K lines? What about machine
generated programs? */
- unsigned short line;
+ unsigned short line = 0;
/* An arbitrary data pointer, allowing symbol readers to record
additional information on a per-symbol basis. Note that this data
to add a magic symbol to the block containing this information,
or to have a generic debug info annotation slot for symbols. */
- void *aux_value;
+ void *aux_value = nullptr;
- struct symbol *hash_next;
+ struct symbol *hash_next = nullptr;
};
/* Several lookup functions return both a symbol and the block in which the
struct template_symbol : public symbol
{
/* The number of template arguments. */
- int n_template_arguments;
+ int n_template_arguments = 0;
/* The template arguments. This is an array with
N_TEMPLATE_ARGUMENTS elements. */
- struct symbol **template_arguments;
+ struct symbol **template_arguments = nullptr;
};
/* A symbol that represents a Rust virtual table object. */
{
/* The concrete type for which this vtable was created; that is, in
"impl Trait for Type", this is "Type". */
- struct type *concrete_type;
+ struct type *concrete_type = nullptr;
};
\f
const char *multiple_symbols_select_mode (void);
-int symbol_matches_domain (enum language symbol_language,
- domain_enum symbol_domain,
- domain_enum domain);
+bool symbol_matches_domain (enum language symbol_language,
+ domain_enum symbol_domain,
+ domain_enum domain);
/* lookup a symbol table by source file name. */
nullptr is used as a return value for *BLOCK if no block is found.
This function either succeeds or fails (not halfway succeeds). If
it succeeds, it sets *NAME, *ADDRESS, and *ENDADDR to real
- information and returns 1. If it fails, it sets *NAME, *ADDRESS
- and *ENDADDR to zero and returns 0.
+ information and returns true. If it fails, it sets *NAME, *ADDRESS
+ and *ENDADDR to zero and returns false.
If the function in question occupies non-contiguous ranges,
*ADDRESS and *ENDADDR are (subject to the conditions noted above) set
containing the entry pc should instead call
find_function_entry_range_from_pc. */
-extern int find_pc_partial_function (CORE_ADDR pc, const char **name,
- CORE_ADDR *address, CORE_ADDR *endaddr,
- const struct block **block = nullptr);
+extern bool find_pc_partial_function (CORE_ADDR pc, const char **name,
+ CORE_ADDR *address, CORE_ADDR *endaddr,
+ const struct block **block = nullptr);
/* Like find_pc_partial_function, above, but *ADDRESS and *ENDADDR are
set to start and end addresses of the range containing the entry pc.
extern struct compunit_symtab *
find_pc_sect_compunit_symtab (CORE_ADDR, struct obj_section *);
-extern int find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *);
+extern bool find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *);
extern void reread_symbols (void);
#define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled."
#endif
-extern int in_gnu_ifunc_stub (CORE_ADDR pc);
+extern bool in_gnu_ifunc_stub (CORE_ADDR pc);
/* Functions for resolving STT_GNU_IFUNC symbols which are implemented only
for ELF symbol files. */
CORE_ADDR (*gnu_ifunc_resolve_addr) (struct gdbarch *gdbarch, CORE_ADDR pc);
/* See elf_gnu_ifunc_resolve_name for its real implementation. */
- int (*gnu_ifunc_resolve_name) (const char *function_name,
+ bool (*gnu_ifunc_resolve_name) (const char *function_name,
CORE_ADDR *function_address_p);
/* See elf_gnu_ifunc_resolver_stop for its real implementation. */
/* Given a symtab and line number, return the pc there. */
-extern int find_line_pc (struct symtab *, int, CORE_ADDR *);
+extern bool find_line_pc (struct symtab *, int, CORE_ADDR *);
-extern int find_line_pc_range (struct symtab_and_line, CORE_ADDR *,
- CORE_ADDR *);
+extern bool find_line_pc_range (struct symtab_and_line, CORE_ADDR *,
+ CORE_ADDR *);
extern void resolve_sal_pc (struct symtab_and_line *);
/* symtab.c */
-int matching_obj_sections (struct obj_section *, struct obj_section *);
+bool matching_obj_sections (struct obj_section *, struct obj_section *);
-extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
+extern struct symtab *find_line_symtab (struct symtab *, int, int *, bool *);
/* Given a function symbol SYM, find the symtab and line for the start
of the function. If FUNFIRSTLINE is true, we want the first line
int,
const char **,
bool);
+
+/* When searching for Fortran symbols within modules (functions/variables)
+ we return a vector of this type. The first item in the pair is the
+ module symbol, and the second item is the symbol for the function or
+ variable we found. */
+typedef std::pair<symbol_search, symbol_search> module_symbol_search;
+
+/* Searches the symbols to find function and variables symbols (depending
+ on KIND) within Fortran modules. The MODULE_REGEXP matches against the
+ name of the module, REGEXP matches against the name of the symbol within
+ the module, and TYPE_REGEXP matches against the type of the symbol
+ within the module. */
+extern std::vector<module_symbol_search> search_module_symbols
+ (const char *module_regexp, const char *regexp,
+ const char *type_regexp, search_domain kind);
+
extern bool treg_matches_sym_type_name (const compiled_regex &treg,
const struct symbol *sym);
/* Return 1 if the supplied producer string matches the ARM RealView
compiler (armcc). */
-int producer_is_realview (const char *producer);
+bool producer_is_realview (const char *producer);
void fixup_section (struct general_symbol_info *ginfo,
CORE_ADDR addr, struct objfile *objfile);
extern bool basenames_may_differ;
-int compare_filenames_for_search (const char *filename,
- const char *search_name);
+bool compare_filenames_for_search (const char *filename,
+ const char *search_name);
-int compare_glob_filenames_for_search (const char *filename,
- const char *search_name);
+bool compare_glob_filenames_for_search (const char *filename,
+ const char *search_name);
bool iterate_over_some_symtabs (const char *name,
const char *real_path,
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