206 lines
5.8 KiB
C++
206 lines
5.8 KiB
C++
/* The library used by gdb.
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Copyright (C) 2014-2021 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include <cc1plugin-config.h>
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#include <vector>
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#include <string>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <stdio.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include "marshall-cp.hh"
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#include "rpc.hh"
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#include "connection.hh"
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#include "names.hh"
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#include "callbacks.hh"
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#include "libiberty.h"
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#include "compiler-name.hh"
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#include "compiler.hh"
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#include "gdbctx.hh"
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// The C compiler context that we hand back to our caller.
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struct libcp1 : public cc1_plugin::base_gdb_plugin<gcc_cp_context>
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{
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explicit libcp1 (const gcc_cp_fe_vtable *);
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void add_callbacks () override;
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gcc_cp_oracle_function *binding_oracle = nullptr;
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gcc_cp_symbol_address_function *address_oracle = nullptr;
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gcc_cp_enter_leave_user_expr_scope_function *enter_scope = nullptr;
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gcc_cp_enter_leave_user_expr_scope_function *leave_scope = nullptr;
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void *oracle_datum = nullptr;
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};
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libcp1::libcp1 (const gcc_cp_fe_vtable *cv)
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: cc1_plugin::base_gdb_plugin<gcc_cp_context> ("libcp1plugin",
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CP_COMPILER_NAME,
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GCC_CP_FE_VERSION_0)
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{
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cp_ops = cv;
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}
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// Enclose these functions in an anonymous namespace because they
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// shouldn't be exported, but they can't be static because they're
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// used as template arguments.
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namespace {
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// This is a wrapper function that is called by the RPC system and
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// that then forwards the call to the library user. Note that the
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// return value is not used; the type cannot be 'void' due to
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// limitations in our simple RPC.
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int
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cp_call_binding_oracle (cc1_plugin::connection *conn,
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enum gcc_cp_oracle_request request,
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const char *identifier)
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{
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libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
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self->binding_oracle (self->oracle_datum, self, request, identifier);
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return 1;
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}
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// This is a wrapper function that is called by the RPC system and
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// that then forwards the call to the library user.
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gcc_address
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cp_call_symbol_address (cc1_plugin::connection *conn, const char *identifier)
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{
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libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
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return self->address_oracle (self->oracle_datum, self, identifier);
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}
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int
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cp_call_enter_scope (cc1_plugin::connection *conn)
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{
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libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
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self->enter_scope (self->oracle_datum, self);
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return 1;
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}
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int
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cp_call_leave_scope (cc1_plugin::connection *conn)
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{
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libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
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self->leave_scope (self->oracle_datum, self);
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return 1;
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}
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} /* anonymous namespace */
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static void
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set_callbacks (struct gcc_cp_context *s,
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gcc_cp_oracle_function *binding_oracle,
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gcc_cp_symbol_address_function *address_oracle,
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gcc_cp_enter_leave_user_expr_scope_function *enter_scope,
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gcc_cp_enter_leave_user_expr_scope_function *leave_scope,
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void *datum)
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{
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libcp1 *self = (libcp1 *) s;
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self->binding_oracle = binding_oracle;
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self->address_oracle = address_oracle;
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self->enter_scope = enter_scope;
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self->leave_scope = leave_scope;
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self->oracle_datum = datum;
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}
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static const struct gcc_cp_fe_vtable cp_vtable =
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{
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GCC_CP_FE_VERSION_0,
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set_callbacks,
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#define GCC_METHOD0(R, N) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N>,
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#define GCC_METHOD1(R, N, A) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A>,
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#define GCC_METHOD2(R, N, A, B) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B>,
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#define GCC_METHOD3(R, N, A, B, C) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C>,
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#define GCC_METHOD4(R, N, A, B, C, D) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C, D>,
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#define GCC_METHOD5(R, N, A, B, C, D, E) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C, D, E>,
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#define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \
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cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C, D, E, F, G>,
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#include "gcc-cp-fe.def"
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#undef GCC_METHOD0
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#undef GCC_METHOD1
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#undef GCC_METHOD2
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#undef GCC_METHOD3
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#undef GCC_METHOD4
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#undef GCC_METHOD5
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#undef GCC_METHOD7
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};
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void
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libcp1::add_callbacks ()
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{
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cc1_plugin::callback_ftype *fun
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= cc1_plugin::callback<int,
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enum gcc_cp_oracle_request,
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const char *,
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cp_call_binding_oracle>;
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connection->add_callback ("binding_oracle", fun);
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fun = cc1_plugin::callback<gcc_address,
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const char *,
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cp_call_symbol_address>;
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connection->add_callback ("address_oracle", fun);
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fun = cc1_plugin::callback<int,
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cp_call_enter_scope>;
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connection->add_callback ("enter_scope", fun);
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fun = cc1_plugin::callback<int,
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cp_call_leave_scope>;
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connection->add_callback ("leave_scope", fun);
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}
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extern "C" gcc_cp_fe_context_function gcc_cp_fe_context;
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#ifdef __GNUC__
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#pragma GCC visibility push(default)
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#endif
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extern "C"
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struct gcc_cp_context *
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gcc_cp_fe_context (enum gcc_base_api_version base_version,
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enum gcc_cp_api_version cp_version)
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{
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if ((base_version != GCC_FE_VERSION_0 && base_version != GCC_FE_VERSION_1)
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|| cp_version != GCC_CP_FE_VERSION_0)
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return NULL;
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return new libcp1 (&cp_vtable);
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}
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