{
mst_unknown = 0, /* Unknown type, the default */
mst_text, /* Generally executable instructions */
+ mst_text_gnu_ifunc, /* Executable code returning address
+ of executable code */
+ mst_slot_got_plt, /* GOT entries for .plt sections */
mst_data, /* Generally initialized data */
mst_bss, /* Generally uninitialized data */
mst_abs, /* Generally absolute (nonrelocatable) */
/* LABEL_DOMAIN may be used for names of labels (for gotos). */
- LABEL_DOMAIN,
+ LABEL_DOMAIN
+} domain_enum;
- /* Searching domains. These overlap with VAR_DOMAIN, providing
- some granularity with the search_symbols function. */
+/* Searching domains, used for `search_symbols'. Element numbers are
+ hardcoded in GDB, check all enum uses before changing it. */
+enum search_domain
+{
/* Everything in VAR_DOMAIN minus FUNCTIONS_DOMAIN and
TYPES_DOMAIN. */
- VARIABLES_DOMAIN,
+ VARIABLES_DOMAIN = 0,
/* All functions -- for some reason not methods, though. */
- FUNCTIONS_DOMAIN,
+ FUNCTIONS_DOMAIN = 1,
/* All defined types */
- TYPES_DOMAIN
-}
-domain_enum;
+ TYPES_DOMAIN = 2,
+
+ /* Any type. */
+ ALL_DOMAIN = 3
+};
/* An address-class says where to find the value of a symbol. */
struct symtab
{
-
- /* Chain of all existing symtabs. */
+ /* Unordered chain of all existing symtabs of this objfile. */
struct symtab *next;
should be designated the primary, so that the blockvector
is relocated exactly once by objfile_relocate. */
- int primary;
+ unsigned int primary : 1;
+
+ /* Symtab has been compiled with both optimizations and debug info so that
+ GDB may stop skipping prologues as variables locations are valid already
+ at function entry points. */
+
+ unsigned int locations_valid : 1;
/* The macro table for this symtab. Like the blockvector, this
may be shared between different symtabs --- and normally is for
char *dirname;
- /* This component says how to free the data we point to:
- 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_linetable
- }
- free_code;
-
- /* A function to call to free space, if necessary. This is IN
- ADDITION to the action indicated by free_code. */
-
- void (*free_func)(struct symtab *symtab);
-
/* Total number of lines found in source file. */
int nlines;
for automated testing of gdb but may also be information that is
useful to the user. */
- char *debugformat;
+ const char *debugformat;
/* String of producer version information. May be zero. */
- char *producer;
+ const char *producer;
/* Full name of file as found by searching the source path.
NULL if not yet known. */
extern struct symbol *find_pc_sect_function (CORE_ADDR, struct obj_section *);
+extern int find_pc_partial_function_gnu_ifunc (CORE_ADDR pc, char **name,
+ CORE_ADDR *address,
+ CORE_ADDR *endaddr,
+ int *is_gnu_ifunc_p);
+
/* lookup function from address, return name, start addr and end addr. */
extern int find_pc_partial_function (CORE_ADDR, char **, CORE_ADDR *,
extern unsigned int msymbol_hash (const char *);
+/* Compute the next hash value from previous HASH and the character C. This
+ is only a GDB in-memory computed value with no external files compatibility
+ requirements. */
+
+#define SYMBOL_HASH_NEXT(hash, c) \
+ ((hash) * 67 + tolower ((unsigned char) (c)) - 113)
+
extern struct objfile * msymbol_objfile (struct minimal_symbol *sym);
extern void
extern struct minimal_symbol *lookup_minimal_symbol_by_pc (CORE_ADDR);
+extern int in_gnu_ifunc_stub (CORE_ADDR pc);
+
+/* Functions for resolving STT_GNU_IFUNC symbols which are implemented only
+ for ELF symbol files. */
+
+struct gnu_ifunc_fns
+{
+ /* See elf_gnu_ifunc_resolve_addr for its real implementation. */
+ 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,
+ CORE_ADDR *function_address_p);
+
+ /* See elf_gnu_ifunc_resolver_stop for its real implementation. */
+ void (*gnu_ifunc_resolver_stop) (struct breakpoint *b);
+
+ /* See elf_gnu_ifunc_resolver_return_stop for its real implementation. */
+ void (*gnu_ifunc_resolver_return_stop) (struct breakpoint *b);
+};
+
+#define gnu_ifunc_resolve_addr gnu_ifunc_fns_p->gnu_ifunc_resolve_addr
+#define gnu_ifunc_resolve_name gnu_ifunc_fns_p->gnu_ifunc_resolve_name
+#define gnu_ifunc_resolver_stop gnu_ifunc_fns_p->gnu_ifunc_resolver_stop
+#define gnu_ifunc_resolver_return_stop \
+ gnu_ifunc_fns_p->gnu_ifunc_resolver_return_stop
+
+extern const struct gnu_ifunc_fns *gnu_ifunc_fns_p;
+
extern struct minimal_symbol *
lookup_minimal_symbol_and_objfile (const char *,
struct objfile **);
void maintenance_print_statistics (char *, int);
-extern void free_symtab (struct symtab *);
-
/* Symbol-reading stuff in symfile.c and solib.c. */
extern void clear_solib (void);
extern void print_source_lines (struct symtab *, int, int, int);
+extern void forget_cached_source_info_for_objfile (struct objfile *);
extern void forget_cached_source_info (void);
extern void select_source_symtab (struct symtab *);
struct symbol_search *next;
};
-extern void search_symbols (char *, domain_enum, int, char **,
+extern void search_symbols (char *, enum search_domain, int, char **,
struct symbol_search **);
extern void free_search_symbols (struct symbol_search *);
extern struct cleanup *make_cleanup_free_search_symbols (struct symbol_search
projects / deliverable / binutils-gdb.git / blobdiff