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/* The library used by gdb.
Copyright (C) 2014-2022 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include <cc1plugin-config.h>
#include <vector>
#include <string>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include <stdlib.h>
#include "marshall-cp.hh"
#include "rpc.hh"
#include "connection.hh"
#include "names.hh"
#include "callbacks.hh"
#include "libiberty.h"
#include "compiler-name.hh"
#include "compiler.hh"
#include "gdbctx.hh"
// The C compiler context that we hand back to our caller.
struct libcp1 : public cc1_plugin::base_gdb_plugin<gcc_cp_context>
{
explicit libcp1 (const gcc_cp_fe_vtable *);
void add_callbacks () override;
gcc_cp_oracle_function *binding_oracle = nullptr;
gcc_cp_symbol_address_function *address_oracle = nullptr;
gcc_cp_enter_leave_user_expr_scope_function *enter_scope = nullptr;
gcc_cp_enter_leave_user_expr_scope_function *leave_scope = nullptr;
void *oracle_datum = nullptr;
};
libcp1::libcp1 (const gcc_cp_fe_vtable *cv)
: cc1_plugin::base_gdb_plugin<gcc_cp_context> ("libcp1plugin",
CP_COMPILER_NAME,
GCC_CP_FE_VERSION_0)
{
cp_ops = cv;
}
// Enclose these functions in an anonymous namespace because they
// shouldn't be exported, but they can't be static because they're
// used as template arguments.
namespace {
// This is a wrapper function that is called by the RPC system and
// that then forwards the call to the library user. Note that the
// return value is not used; the type cannot be 'void' due to
// limitations in our simple RPC.
int
cp_call_binding_oracle (cc1_plugin::connection *conn,
enum gcc_cp_oracle_request request,
const char *identifier)
{
libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
self->binding_oracle (self->oracle_datum, self, request, identifier);
return 1;
}
// This is a wrapper function that is called by the RPC system and
// that then forwards the call to the library user.
gcc_address
cp_call_symbol_address (cc1_plugin::connection *conn, const char *identifier)
{
libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
return self->address_oracle (self->oracle_datum, self, identifier);
}
int
cp_call_enter_scope (cc1_plugin::connection *conn)
{
libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
self->enter_scope (self->oracle_datum, self);
return 1;
}
int
cp_call_leave_scope (cc1_plugin::connection *conn)
{
libcp1 *self = (libcp1 *) (((libcp1::local_connection *) conn)->back_ptr);
self->leave_scope (self->oracle_datum, self);
return 1;
}
} /* anonymous namespace */
static void
set_callbacks (struct gcc_cp_context *s,
gcc_cp_oracle_function *binding_oracle,
gcc_cp_symbol_address_function *address_oracle,
gcc_cp_enter_leave_user_expr_scope_function *enter_scope,
gcc_cp_enter_leave_user_expr_scope_function *leave_scope,
void *datum)
{
libcp1 *self = (libcp1 *) s;
self->binding_oracle = binding_oracle;
self->address_oracle = address_oracle;
self->enter_scope = enter_scope;
self->leave_scope = leave_scope;
self->oracle_datum = datum;
}
static const struct gcc_cp_fe_vtable cp_vtable =
{
GCC_CP_FE_VERSION_0,
set_callbacks,
#define GCC_METHOD0(R, N) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N>,
#define GCC_METHOD1(R, N, A) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A>,
#define GCC_METHOD2(R, N, A, B) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B>,
#define GCC_METHOD3(R, N, A, B, C) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C>,
#define GCC_METHOD4(R, N, A, B, C, D) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C, D>,
#define GCC_METHOD5(R, N, A, B, C, D, E) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C, D, E>,
#define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \
cc1_plugin::rpc<gcc_cp_context, R, cc1_plugin::cp::N, A, B, C, D, E, F, G>,
#include "gcc-cp-fe.def"
#undef GCC_METHOD0
#undef GCC_METHOD1
#undef GCC_METHOD2
#undef GCC_METHOD3
#undef GCC_METHOD4
#undef GCC_METHOD5
#undef GCC_METHOD7
};
void
libcp1::add_callbacks ()
{
cc1_plugin::callback_ftype *fun
= cc1_plugin::invoker<int, enum gcc_cp_oracle_request,
const char *>::invoke<cp_call_binding_oracle>;
connection->add_callback ("binding_oracle", fun);
fun = cc1_plugin::invoker<gcc_address,
const char *>::invoke<cp_call_symbol_address>;
connection->add_callback ("address_oracle", fun);
fun = cc1_plugin::invoker<int>::invoke<cp_call_enter_scope>;
connection->add_callback ("enter_scope", fun);
fun = cc1_plugin::invoker<int>::invoke<cp_call_leave_scope>;
connection->add_callback ("leave_scope", fun);
}
extern "C" gcc_cp_fe_context_function gcc_cp_fe_context;
#ifdef __GNUC__
#pragma GCC visibility push(default)
#endif
extern "C"
struct gcc_cp_context *
gcc_cp_fe_context (enum gcc_base_api_version base_version,
enum gcc_cp_api_version cp_version)
{
if ((base_version != GCC_FE_VERSION_0 && base_version != GCC_FE_VERSION_1)
|| cp_version != GCC_CP_FE_VERSION_0)
return NULL;
return new libcp1 (&cp_vtable);
}
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