179 lines
5.5 KiB
C++
179 lines
5.5 KiB
C++
/* Header file for GDB compile command and supporting functions.
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_COMPILE_INTERNAL_H
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#define GDB_COMPILE_INTERNAL_H
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#include "hashtab.h"
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#include "gcc-c-interface.h"
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#include "common/enum-flags.h"
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/* enum-flags wrapper. */
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DEF_ENUM_FLAGS_TYPE (enum gcc_qualifiers, gcc_qualifiers_flags);
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/* Debugging flag for the "compile" family of commands. */
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extern int compile_debug;
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struct block;
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/* An object of this type holds state associated with a given
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compilation job. */
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struct compile_instance
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{
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/* The GCC front end. */
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struct gcc_base_context *fe;
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/* The "scope" of this compilation. */
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enum compile_i_scope_types scope;
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/* The block in which an expression is being parsed. */
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const struct block *block;
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/* Specify "-std=gnu11", "-std=gnu++11" or similar. These options are put
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after CU's DW_AT_producer compilation options to override them. */
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const char *gcc_target_options;
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/* How to destroy this object. */
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void (*destroy) (struct compile_instance *);
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};
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/* A subclass of compile_instance that is specific to the C front
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end. */
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struct compile_c_instance
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{
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/* Base class. Note that the base class vtable actually points to a
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gcc_c_fe_vtable. */
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struct compile_instance base;
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/* Map from gdb types to gcc types. */
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htab_t type_map;
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/* Map from gdb symbols to gcc error messages to emit. */
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htab_t symbol_err_map;
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};
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/* A helper macro that takes a compile_c_instance and returns its
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corresponding gcc_c_context. */
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#define C_CTX(I) ((struct gcc_c_context *) ((I)->base.fe))
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/* Define header and footers for different scopes. */
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/* A simple scope just declares a function named "_gdb_expr", takes no
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arguments and returns no value. */
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#define COMPILE_I_SIMPLE_REGISTER_STRUCT_TAG "__gdb_regs"
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#define COMPILE_I_SIMPLE_REGISTER_ARG_NAME "__regs"
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#define COMPILE_I_SIMPLE_REGISTER_DUMMY "_dummy"
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#define COMPILE_I_PRINT_OUT_ARG_TYPE "void *"
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#define COMPILE_I_PRINT_OUT_ARG "__gdb_out_param"
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#define COMPILE_I_EXPR_VAL "__gdb_expr_val"
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#define COMPILE_I_EXPR_PTR_TYPE "__gdb_expr_ptr_type"
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/* Call gdbarch_register_name (GDBARCH, REGNUM) and convert its result
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to a form suitable for the compiler source. The register names
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should not clash with inferior defined macros. */
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extern std::string compile_register_name_mangled (struct gdbarch *gdbarch,
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int regnum);
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/* Convert compiler source register name to register number of
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GDBARCH. Returned value is always >= 0, function throws an error
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for non-matching REG_NAME. */
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extern int compile_register_name_demangle (struct gdbarch *gdbarch,
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const char *reg_name);
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/* Convert a gdb type, TYPE, to a GCC type. CONTEXT is used to do the
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actual conversion. The new GCC type is returned. */
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struct type;
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extern gcc_type convert_type (struct compile_c_instance *context,
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struct type *type);
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/* A callback suitable for use as the GCC C symbol oracle. */
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extern gcc_c_oracle_function gcc_convert_symbol;
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/* A callback suitable for use as the GCC C address oracle. */
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extern gcc_c_symbol_address_function gcc_symbol_address;
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/* Instantiate a GDB object holding state for the GCC context FE. The
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new object is returned. */
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extern struct compile_instance *new_compile_instance (struct gcc_c_context *fe);
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/* Emit code to compute the address for all the local variables in
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scope at PC in BLOCK. Returns a malloc'd vector, indexed by gdb
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register number, where each element indicates if the corresponding
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register is needed to compute a local variable. */
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extern unsigned char *generate_c_for_variable_locations
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(struct compile_c_instance *compiler,
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string_file &stream,
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struct gdbarch *gdbarch,
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const struct block *block,
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CORE_ADDR pc);
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/* Get the GCC mode attribute value for a given type size. */
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extern const char *c_get_mode_for_size (int size);
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/* Given a dynamic property, return a name that is used to represent
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its size. The contents of the resulting string will be the same
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each time for each call with the same argument. */
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struct dynamic_prop;
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extern std::string c_get_range_decl_name (const struct dynamic_prop *prop);
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/* Type used to hold and pass around the source and object file names
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to use for compilation. */
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class compile_file_names
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{
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public:
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compile_file_names (std::string source_file, std::string object_file)
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: m_source_file (source_file), m_object_file (object_file)
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{}
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/* Provide read-only views only. Return 'const char *' instead of
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std::string to avoid having to use c_str() everywhere in client
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code. */
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const char *source_file () const
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{ return m_source_file.c_str (); }
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const char *object_file () const
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{ return m_object_file.c_str (); }
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private:
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/* Storage for the file names. */
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std::string m_source_file;
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std::string m_object_file;
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};
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#endif /* GDB_COMPILE_INTERNAL_H */
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