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/* Header file for GDB compile command and supporting functions.
Copyright (C) 2014-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef COMPILE_COMPILE_INTERNAL_H
#define COMPILE_COMPILE_INTERNAL_H
#include "gcc-c-interface.h"
/* Debugging flag for the "compile" family of commands. */
extern bool compile_debug;
struct block;
/* An object that maps a gdb type to a gcc type. */
struct type_map_instance
{
/* The gdb type. */
struct type *type;
/* The corresponding gcc type handle. */
gcc_type gcc_type_handle;
};
/* An object of this type holds state associated with a given
compilation job. */
class compile_instance
{
public:
compile_instance (struct gcc_base_context *gcc_fe, const char *options);
virtual ~compile_instance ()
{
m_gcc_fe->ops->destroy (m_gcc_fe);
}
/* Returns the GCC options to be passed during compilation. */
const std::string &gcc_target_options () const
{
return m_gcc_target_options;
}
/* Query the type cache for TYPE, returning the compiler's
type for it in RET. */
bool get_cached_type (struct type *type, gcc_type *ret) const;
/* Insert GCC_TYPE into the type cache for TYPE.
It is ok for a given type to be inserted more than once, provided that
the exact same association is made each time. */
void insert_type (struct type *type, gcc_type gcc_type);
/* Associate SYMBOL with some error text. */
void insert_symbol_error (const struct symbol *sym, const char *text);
/* Emit the error message corresponding to SYM, if one exists, and
arrange for it not to be emitted again. */
void error_symbol_once (const struct symbol *sym);
/* These currently just forward to the underlying ops
vtable. */
/* Set the plug-in print callback. */
void set_print_callback (void (*print_function) (void *, const char *),
void *datum);
/* Return the plug-in's front-end version. */
unsigned int version () const;
/* Set the plug-in's verbosity level. Nop for GCC_FE_VERSION_0. */
void set_verbose (int level);
/* Set the plug-in driver program. Nop for GCC_FE_VERSION_0. */
void set_driver_filename (const char *filename);
/* Set the regular expression used to match the configury triplet
prefix to the compiler. Nop for GCC_FE_VERSION_0. */
void set_triplet_regexp (const char *regexp);
/* Set compilation arguments. REGEXP is only used for protocol
version GCC_FE_VERSION_0. */
gdb::unique_xmalloc_ptr<char> set_arguments (int argc, char **argv,
const char *regexp = NULL);
/* Set the filename of the program to compile. Nop for GCC_FE_VERSION_0. */
void set_source_file (const char *filename);
/* Compile the previously specified source file to FILENAME.
VERBOSE_LEVEL is only used for protocol version GCC_FE_VERSION_0. */
bool compile (const char *filename, int verbose_level = -1);
/* Set the scope type for this compile. */
void set_scope (enum compile_i_scope_types scope)
{
m_scope = scope;
}
/* Return the scope type. */
enum compile_i_scope_types scope () const
{
return m_scope;
}
/* Set the block to be used for symbol searches. */
void set_block (const struct block *block)
{
m_block = block;
}
/* Return the search block. */
const struct block *block () const
{
return m_block;
}
protected:
/* The GCC front end. */
struct gcc_base_context *m_gcc_fe;
/* The "scope" of this compilation. */
enum compile_i_scope_types m_scope;
/* The block in which an expression is being parsed. */
const struct block *m_block;
/* Specify "-std=gnu11", "-std=gnu++11" or similar. These options are put
after CU's DW_AT_producer compilation options to override them. */
std::string m_gcc_target_options;
/* Map from gdb types to gcc types. */
htab_up m_type_map;
/* Map from gdb symbols to gcc error messages to emit. */
htab_up m_symbol_err_map;
};
/* Define header and footers for different scopes. */
/* A simple scope just declares a function named "_gdb_expr", takes no
arguments and returns no value. */
#define COMPILE_I_SIMPLE_REGISTER_STRUCT_TAG "__gdb_regs"
#define COMPILE_I_SIMPLE_REGISTER_ARG_NAME "__regs"
#define COMPILE_I_SIMPLE_REGISTER_DUMMY "_dummy"
#define COMPILE_I_PRINT_OUT_ARG_TYPE "void *"
#define COMPILE_I_PRINT_OUT_ARG "__gdb_out_param"
#define COMPILE_I_EXPR_VAL "__gdb_expr_val"
#define COMPILE_I_EXPR_PTR_TYPE "__gdb_expr_ptr_type"
/* A "type" to indicate a NULL type. */
const gcc_type GCC_TYPE_NONE = (gcc_type) -1;
/* Call gdbarch_register_name (GDBARCH, REGNUM) and convert its result
to a form suitable for the compiler source. The register names
should not clash with inferior defined macros. */
extern std::string compile_register_name_mangled (struct gdbarch *gdbarch,
int regnum);
/* Convert compiler source register name to register number of
GDBARCH. Returned value is always >= 0, function throws an error
for non-matching REG_NAME. */
extern int compile_register_name_demangle (struct gdbarch *gdbarch,
const char *reg_name);
/* Type used to hold and pass around the source and object file names
to use for compilation. */
class compile_file_names
{
public:
compile_file_names (std::string source_file, std::string object_file)
: m_source_file (source_file), m_object_file (object_file)
{}
/* Provide read-only views only. Return 'const char *' instead of
std::string to avoid having to use c_str() everywhere in client
code. */
const char *source_file () const
{ return m_source_file.c_str (); }
const char *object_file () const
{ return m_object_file.c_str (); }
private:
/* Storage for the file names. */
std::string m_source_file;
std::string m_object_file;
};
#endif /* COMPILE_COMPILE_INTERNAL_H */
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