18cdc6d8f8
This patch introduces a new class which wraps the GCC C compile plug-in.
It is a little unfortunate that this all happened in between the time that
GCC moved to C++ and GDB moved to C++, leaving us with an ABI promise to
support a C-like interface. The hope is to isolate GDB from some of this
should it change in the future.
Broadly, what this does is replace calls like:
C_CTX (context)->c_ops->operation (C_CTX (context), ...);
with calls that now look like:
context->c_plugin->operation (...);
This API will be further refined in following patches when struct
compile_instance/compile_c_instance are changed into classes.
gdb/ChangeLog:
* Makefile.in (HFILES_NO_SRCDIR): Add compile/gcc-c-plugin.h.
* compile/compile-c-types.c: Define GCC_METHODN macros and include
gcc-c-fe.def to define C plugin.
(delete_instance): Delete `c_plugin'.
(new_compile_instance): Initialize `c_plugin'.
* compile/compile-c.h: Include gcc_c_plugin.h.
(struct compile_c_instance) <c_plugin>: New member.
* gcc-c-plugin.h: New file.
Update all callers with API change.
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
/* Header file for GDB compile C-language support.
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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_C_H
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#define GDB_COMPILE_C_H
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#include "common/enum-flags.h"
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#include "gcc-c-plugin.h"
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#include "hashtab.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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/* 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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/* 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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/* GCC C plugin. */
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gcc_c_plugin *c_plugin;
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};
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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 gdb::unique_xmalloc_ptr<unsigned char>
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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 an xmallocd name that is used to
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represent its size. The result must be freed by the caller. The
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contents of the resulting string will be the same each time for
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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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#endif /* GDB_COMPILE_C_H */
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