1 /* Header file for GDB compile command and supporting functions.
2 Copyright (C) 2014-2015 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 #ifndef GDB_COMPILE_INTERNAL_H
18 #define GDB_COMPILE_INTERNAL_H
21 #include "gcc-c-interface.h"
23 /* Debugging flag for the "compile" family of commands. */
25 extern int compile_debug
;
29 /* An object of this type holds state associated with a given
32 struct compile_instance
34 /* The GCC front end. */
36 struct gcc_base_context
*fe
;
38 /* The "scope" of this compilation. */
40 enum compile_i_scope_types scope
;
42 /* The block in which an expression is being parsed. */
44 const struct block
*block
;
46 /* Specify "-std=gnu11", "-std=gnu++11" or similar. These options are put
47 after CU's DW_AT_producer compilation options to override them. */
49 const char *gcc_target_options
;
51 /* How to destroy this object. */
53 void (*destroy
) (struct compile_instance
*);
56 /* A subclass of compile_instance that is specific to the C front
58 struct compile_c_instance
60 /* Base class. Note that the base class vtable actually points to a
63 struct compile_instance base
;
65 /* Map from gdb types to gcc types. */
69 /* Map from gdb symbols to gcc error messages to emit. */
71 htab_t symbol_err_map
;
74 /* A helper macro that takes a compile_c_instance and returns its
75 corresponding gcc_c_context. */
77 #define C_CTX(I) ((struct gcc_c_context *) ((I)->base.fe))
79 /* Define header and footers for different scopes. */
81 /* A simple scope just declares a function named "_gdb_expr", takes no
82 arguments and returns no value. */
84 #define COMPILE_I_SIMPLE_REGISTER_STRUCT_TAG "__gdb_regs"
85 #define COMPILE_I_SIMPLE_REGISTER_ARG_NAME "__regs"
86 #define COMPILE_I_SIMPLE_REGISTER_DUMMY "_dummy"
87 #define COMPILE_I_PRINT_OUT_ARG_TYPE "void *"
88 #define COMPILE_I_PRINT_OUT_ARG "__gdb_out_param"
89 #define COMPILE_I_EXPR_VAL "__gdb_expr_val"
90 #define COMPILE_I_EXPR_PTR_TYPE "__gdb_expr_ptr_type"
92 /* Call gdbarch_register_name (GDBARCH, REGNUM) and convert its result
93 to a form suitable for the compiler source. The register names
94 should not clash with inferior defined macros. Returned pointer is
95 never NULL. Returned pointer needs to be deallocated by xfree. */
97 extern char *compile_register_name_mangled (struct gdbarch
*gdbarch
,
100 /* Convert compiler source register name to register number of
101 GDBARCH. Returned value is always >= 0, function throws an error
102 for non-matching REG_NAME. */
104 extern int compile_register_name_demangle (struct gdbarch
*gdbarch
,
105 const char *reg_name
);
107 /* Convert a gdb type, TYPE, to a GCC type. CONTEXT is used to do the
108 actual conversion. The new GCC type is returned. */
111 extern gcc_type
convert_type (struct compile_c_instance
*context
,
114 /* A callback suitable for use as the GCC C symbol oracle. */
116 extern gcc_c_oracle_function gcc_convert_symbol
;
118 /* A callback suitable for use as the GCC C address oracle. */
120 extern gcc_c_symbol_address_function gcc_symbol_address
;
122 /* Instantiate a GDB object holding state for the GCC context FE. The
123 new object is returned. */
125 extern struct compile_instance
*new_compile_instance (struct gcc_c_context
*fe
);
127 /* Emit code to compute the address for all the local variables in
128 scope at PC in BLOCK. Returns a malloc'd vector, indexed by gdb
129 register number, where each element indicates if the corresponding
130 register is needed to compute a local variable. */
132 extern unsigned char *generate_c_for_variable_locations
133 (struct compile_c_instance
*compiler
,
134 struct ui_file
*stream
,
135 struct gdbarch
*gdbarch
,
136 const struct block
*block
,
139 /* Get the GCC mode attribute value for a given type size. */
141 extern const char *c_get_mode_for_size (int size
);
143 /* Given a dynamic property, return an xmallocd name that is used to
144 represent its size. The result must be freed by the caller. The
145 contents of the resulting string will be the same each time for
146 each call with the same argument. */
149 extern char *c_get_range_decl_name (const struct dynamic_prop
*prop
);
151 #endif /* GDB_COMPILE_INTERNAL_H */