/* Minimal symbol table definitions for GDB.
- Copyright (C) 2011 Free Software Foundation, Inc.
+ Copyright (C) 2011-2014 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef MINSYMS_H
#define MINSYMS_H
+/* Several lookup functions return both a minimal symbol and the
+ objfile in which it is found. This structure is used in these
+ cases. */
+
+struct bound_minimal_symbol
+{
+ /* The minimal symbol that was found, or NULL if no minimal symbol
+ was found. */
+
+ struct minimal_symbol *minsym;
+
+ /* If MINSYM is not NULL, then this is the objfile in which the
+ symbol is defined. */
+
+ struct objfile *objfile;
+};
+
/* This header declares most of the API for dealing with minimal
symbols and minimal symbol tables. A few things are declared
elsewhere; see below.
ADDRESS - the address of the symbol
MS_TYPE - the type of the symbol
SECTION - the symbol's section
- BFD_SECTION - the symbol's BFD section; used to find the
appropriate obj_section for the minimal symbol. This can be NULL.
OBJFILE - the objfile associated with the minimal symbol. */
CORE_ADDR address,
enum minimal_symbol_type ms_type,
int section,
- asection *bfd_section,
struct objfile *objfile);
/* Like prim_record_minimal_symbol_full, but:
- uses strlen to compute NAME_LEN,
- - passes COPY_NAME = 0,
- - passes SECTION = 0,
- - and passes BFD_SECTION = NULL.
+ - passes COPY_NAME = 1,
+ - and passes a default SECTION, depending on the type
This variant does not return the new symbol. */
/* Like prim_record_minimal_symbol_full, but:
- uses strlen to compute NAME_LEN,
- - passes COPY_NAME = 0. */
+ - passes COPY_NAME = 1. */
struct minimal_symbol *prim_record_minimal_symbol_and_info
(const char *,
CORE_ADDR,
enum minimal_symbol_type,
int section,
- asection *bfd_section,
struct objfile *);
/* Install the minimal symbols that have been collected into the given
void terminate_minimal_symbol_table (struct objfile *objfile);
-/* Sort all the minimal symbols in OBJFILE. This should be only be
- called after relocating symbols; it ensures that the minimal
- symbols are properly sorted by address. */
-
-void msymbols_sort (struct objfile *objfile);
-
\f
/* Compute a hash code for the string argument. */
\f
-/* Return the objfile that holds the minimal symbol SYM. Every
- minimal symbols is held by some objfile; this will never return
- NULL. */
-
-struct objfile *msymbol_objfile (struct minimal_symbol *sym);
-
-\f
-
/* Look through all the current minimal symbol tables and find the
first minimal symbol that matches NAME. If OBJF is non-NULL, limit
- the search to that objfile. If SFILE is non-NULL, the only file-scope
- symbols considered will be from that source file (global symbols are
- still preferred). Returns a pointer to the minimal symbol that
- matches, or NULL if no match is found. */
+ the search to that objfile. If SFILE is non-NULL, the only
+ file-scope symbols considered will be from that source file (global
+ symbols are still preferred). Returns a bound minimal symbol that
+ matches, or an empty bound minimal symbol if no match is found. */
+
+struct bound_minimal_symbol lookup_minimal_symbol (const char *,
+ const char *,
+ struct objfile *);
-struct minimal_symbol *lookup_minimal_symbol (const char *,
- const char *,
- struct objfile *);
+/* Like lookup_minimal_symbol, but searches all files and
+ objfiles. */
+
+struct bound_minimal_symbol lookup_bound_minimal_symbol (const char *);
/* Find the minimal symbol named NAME, and return both the minsym
- struct and its objfile. This only checks the linkage name. Sets
- *OBJFILE_P and returns the minimal symbol, if it is found. If it
- is not found, returns NULL. */
+ struct and its objfile. This only checks the linkage name. */
-struct minimal_symbol *lookup_minimal_symbol_and_objfile (const char *,
- struct objfile **);
+struct bound_minimal_symbol lookup_minimal_symbol_and_objfile (const char *);
/* Look through all the current minimal symbol tables and find the
first minimal symbol that matches NAME and has text type. If OBJF
- is non-NULL, limit the search to that objfile. Returns a pointer
- to the minimal symbol that matches, or NULL if no match is found.
+ is non-NULL, limit the search to that objfile. Returns a bound
+ minimal symbol that matches, or an "empty" bound minimal symbol
+ otherwise.
This function only searches the mangled (linkage) names. */
-struct minimal_symbol *lookup_minimal_symbol_text (const char *,
- struct objfile *);
+struct bound_minimal_symbol lookup_minimal_symbol_text (const char *,
+ struct objfile *);
/* Look through all the current minimal symbol tables and find the
first minimal symbol that matches NAME and is a solib trampoline.
This function only searches the mangled (linkage) names. */
-struct minimal_symbol *lookup_minimal_symbol_solib_trampoline
+struct bound_minimal_symbol lookup_minimal_symbol_solib_trampoline
(const char *,
struct objfile *);
If SECTION is NULL, this uses the result of find_pc_section
instead.
- Returns a pointer to the minimal symbol if such a symbol is found,
- or NULL if PC is not in a suitable range. */
+ The result has a non-NULL 'minsym' member if such a symbol is
+ found, or NULL if PC is not in a suitable range. */
-struct minimal_symbol *lookup_minimal_symbol_by_pc_section
+struct bound_minimal_symbol lookup_minimal_symbol_by_pc_section
(CORE_ADDR,
struct obj_section *);
This is a wrapper that calls lookup_minimal_symbol_by_pc_section
with a NULL section argument. */
-struct minimal_symbol *lookup_minimal_symbol_by_pc (CORE_ADDR);
-
-/* Check if PC is in a shared library trampoline code stub.
- Return minimal symbol for the trampoline entry or NULL if PC is not
- in a trampoline code stub. */
-
-struct minimal_symbol *lookup_solib_trampoline_symbol_by_pc (CORE_ADDR);
+struct bound_minimal_symbol lookup_minimal_symbol_by_pc (CORE_ADDR);
/* Iterate over all the minimal symbols in the objfile OBJF which
match NAME. Both the ordinary and demangled names of each symbol
void *),
void *user_data);
+/* Compute the upper bound of MINSYM. The upper bound is the last
+ address thought to be part of the symbol. If the symbol has a
+ size, it is used. Otherwise use the lesser of the next minimal
+ symbol in the same section, or the end of the section, as the end
+ of the function. */
+
+CORE_ADDR minimal_symbol_upper_bound (struct bound_minimal_symbol minsym);
+
#endif /* MINSYMS_H */
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