/* Minimal symbol table definitions for GDB.
- Copyright (C) 2011-2016 Free Software Foundation, Inc.
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef MINSYMS_H
#define MINSYMS_H
+struct type;
+
/* Several lookup functions return both a minimal symbol and the
objfile in which it is found. This structure is used in these
cases. */
as opaque and use functions provided by minsyms.c to inspect them.
*/
+struct msym_bunch;
+
/* An RAII-based object that is used to record minimal symbols while
they are being read. */
class minimal_symbol_reader
{
public:
- /* Prepare to start collecting minimal symbols. This should be called
- by a symbol reader to initialize the minimal symbol module.
- Currently, minimal symbol table creation is not reentrant; it
- relies on global (static) variables in minsyms.c. */
+ /* Prepare to start collecting minimal symbols. This should be
+ called by a symbol reader to initialize the minimal symbol
+ module. */
explicit minimal_symbol_reader (struct objfile *);
void install ();
+ /* Record a new minimal symbol. This is the "full" entry point;
+ simpler convenience entry points are also provided below.
+
+ This returns a new minimal symbol. It is ok to modify the returned
+ minimal symbol (though generally not necessary). It is not ok,
+ though, to stash the pointer anywhere; as minimal symbols may be
+ moved after creation. The memory for the returned minimal symbol
+ is still owned by the minsyms.c code, and should not be freed.
+
+ Arguments are:
+
+ NAME - the symbol's name
+ NAME_LEN - the length of the name
+ COPY_NAME - if true, the minsym code must make a copy of NAME. If
+ false, then NAME must be NUL-terminated, and must have a lifetime
+ that is at least as long as OBJFILE's lifetime.
+ ADDRESS - the address of the symbol
+ MS_TYPE - the type of the symbol
+ SECTION - the symbol's section
+ */
+
+ struct minimal_symbol *record_full (const char *name,
+ int name_len,
+ bool copy_name,
+ CORE_ADDR address,
+ enum minimal_symbol_type ms_type,
+ int section);
+
+ /* Like record_full, but:
+ - uses strlen to compute NAME_LEN,
+ - passes COPY_NAME = true,
+ - and passes a default SECTION, depending on the type
+
+ This variant does not return the new symbol. */
+
+ void record (const char *name, CORE_ADDR address,
+ enum minimal_symbol_type ms_type);
+
+ /* Like record_full, but:
+ - uses strlen to compute NAME_LEN,
+ - passes COPY_NAME = true. */
+
+ struct minimal_symbol *record_with_info (const char *name,
+ CORE_ADDR address,
+ enum minimal_symbol_type ms_type,
+ int section)
+ {
+ return record_full (name, strlen (name), true, address, ms_type, section);
+ }
+
private:
/* No need for these. They are intentionally not defined anywhere. */
minimal_symbol_reader (const minimal_symbol_reader &);
struct objfile *m_objfile;
-};
-/* Record a new minimal symbol. This is the "full" entry point;
- simpler convenience entry points are also provided below.
-
- This returns a new minimal symbol. It is ok to modify the returned
- minimal symbol (though generally not necessary). It is not ok,
- though, to stash the pointer anywhere; as minimal symbols may be
- moved after creation. The memory for the returned minimal symbol
- is still owned by the minsyms.c code, and should not be freed.
-
- Arguments are:
-
- NAME - the symbol's name
- NAME_LEN - the length of the name
- COPY_NAME - if true, the minsym code must make a copy of NAME. If
- false, then NAME must be NUL-terminated, and must have a lifetime
- that is at least as long as OBJFILE's lifetime.
- ADDRESS - the address of the symbol
- MS_TYPE - the type of the symbol
- SECTION - the symbol's section
- appropriate obj_section for the minimal symbol. This can be NULL.
- OBJFILE - the objfile associated with the minimal symbol. */
-
-struct minimal_symbol *prim_record_minimal_symbol_full
- (const char *name,
- int name_len,
- int copy_name,
- CORE_ADDR address,
- enum minimal_symbol_type ms_type,
- int section,
- struct objfile *objfile);
-
-/* Like prim_record_minimal_symbol_full, but:
- - uses strlen to compute NAME_LEN,
- - passes COPY_NAME = 1,
- - and passes a default SECTION, depending on the type
-
- This variant does not return the new symbol. */
+ /* Bunch currently being filled up.
+ The next field points to chain of filled bunches. */
-void prim_record_minimal_symbol (const char *, CORE_ADDR,
- enum minimal_symbol_type,
- struct objfile *);
+ struct msym_bunch *m_msym_bunch;
-/* Like prim_record_minimal_symbol_full, but:
- - uses strlen to compute NAME_LEN,
- - passes COPY_NAME = 1. */
+ /* Number of slots filled in current bunch. */
-struct minimal_symbol *prim_record_minimal_symbol_and_info
- (const char *,
- CORE_ADDR,
- enum minimal_symbol_type,
- int section,
- struct objfile *);
+ int m_msym_bunch_index;
+
+ /* Total number of minimal symbols recorded so far for the
+ objfile. */
+
+ int m_msym_count;
+};
/* Create the terminating entry of OBJFILE's minimal symbol table.
If OBJFILE->msymbols is zero, allocate a single entry from
\f
+/* Return whether MSYMBOL is a function/method. If FUNC_ADDRESS_P is
+ non-NULL, and the MSYMBOL is a function, then *FUNC_ADDRESS_P is
+ set to the function's address, already resolved if MINSYM points to
+ a function descriptor. */
+
+bool msymbol_is_function (struct objfile *objfile,
+ minimal_symbol *minsym,
+ CORE_ADDR *func_address_p = NULL);
+
/* Compute a hash code for the string argument. */
unsigned int msymbol_hash (const char *);
requirements. */
#define SYMBOL_HASH_NEXT(hash, c) \
- ((hash) * 67 + tolower ((unsigned char) (c)) - 113)
+ ((hash) * 67 + TOLOWER ((unsigned char) (c)) - 113)
\f
USER_DATA as arguments. */
void iterate_over_minimal_symbols (struct objfile *objf,
- const char *name,
+ const lookup_name_info &name,
void (*callback) (struct minimal_symbol *,
void *),
void *user_data);
CORE_ADDR minimal_symbol_upper_bound (struct bound_minimal_symbol minsym);
+/* Return the type of MSYMBOL, a minimal symbol of OBJFILE. If
+ ADDRESS_P is not NULL, set it to the MSYMBOL's resolved
+ address. */
+
+type *find_minsym_type_and_address (minimal_symbol *msymbol, objfile *objf,
+ CORE_ADDR *address_p);
+
#endif /* MINSYMS_H */
projects / deliverable / binutils-gdb.git / blobdiff