| /* The library used by gdb. |
| Copyright (C) 2014-2021 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.hh" |
| #include "rpc.hh" |
| #include "connection.hh" |
| #include "names.hh" |
| #include "callbacks.hh" |
| #include "libiberty.h" |
| #include "compiler-name.hh" |
| #include "gcc-c-interface.h" |
| #include "compiler.hh" |
| #include "gdbctx.hh" |
| |
| // The C compiler context that we hand back to our caller. |
| struct libcc1 : public cc1_plugin::base_gdb_plugin<gcc_c_context> |
| { |
| explicit libcc1 (const gcc_c_fe_vtable *); |
| |
| void add_callbacks () override; |
| |
| gcc_c_oracle_function *binding_oracle = nullptr; |
| gcc_c_symbol_address_function *address_oracle = nullptr; |
| void *oracle_datum = nullptr; |
| }; |
| |
| libcc1::libcc1 (const gcc_c_fe_vtable *cv) |
| : cc1_plugin::base_gdb_plugin<gcc_c_context> ("libcc1plugin", |
| C_COMPILER_NAME, |
| GCC_C_FE_VERSION_1) |
| { |
| c_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 |
| c_call_binding_oracle (cc1_plugin::connection *conn, |
| enum gcc_c_oracle_request request, |
| const char *identifier) |
| { |
| libcc1 *self = (libcc1 *) (((libcc1::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 |
| c_call_symbol_address (cc1_plugin::connection *conn, const char *identifier) |
| { |
| libcc1 *self = (libcc1 *) (((libcc1::local_connection *) conn)->back_ptr); |
| |
| return self->address_oracle (self->oracle_datum, self, identifier); |
| } |
| } /* anonymous namespace */ |
| |
| |
| |
| static void |
| set_callbacks (struct gcc_c_context *s, |
| gcc_c_oracle_function *binding_oracle, |
| gcc_c_symbol_address_function *address_oracle, |
| void *datum) |
| { |
| libcc1 *self = (libcc1 *) s; |
| |
| self->binding_oracle = binding_oracle; |
| self->address_oracle = address_oracle; |
| self->oracle_datum = datum; |
| } |
| |
| static const struct gcc_c_fe_vtable c_vtable = |
| { |
| GCC_C_FE_VERSION_0, |
| set_callbacks, |
| |
| #define GCC_METHOD0(R, N) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N>, |
| #define GCC_METHOD1(R, N, A) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N, A>, |
| #define GCC_METHOD2(R, N, A, B) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N, A, B>, |
| #define GCC_METHOD3(R, N, A, B, C) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N, A, B, C>, |
| #define GCC_METHOD4(R, N, A, B, C, D) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N, A, B, C, D>, |
| #define GCC_METHOD5(R, N, A, B, C, D, E) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N, A, B, C, D, E>, |
| #define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \ |
| cc1_plugin::rpc<gcc_c_context, R, cc1_plugin::c::N, A, B, C, D, E, F, G>, |
| |
| #include "gcc-c-fe.def" |
| |
| #undef GCC_METHOD0 |
| #undef GCC_METHOD1 |
| #undef GCC_METHOD2 |
| #undef GCC_METHOD3 |
| #undef GCC_METHOD4 |
| #undef GCC_METHOD5 |
| #undef GCC_METHOD7 |
| }; |
| |
| |
| |
| void |
| libcc1::add_callbacks () |
| { |
| cc1_plugin::callback_ftype *fun |
| = cc1_plugin::invoker<int, |
| enum gcc_c_oracle_request, |
| const char *>::invoke<c_call_binding_oracle>; |
| connection->add_callback ("binding_oracle", fun); |
| |
| fun = cc1_plugin::invoker<gcc_address, |
| const char *>::invoke<c_call_symbol_address>; |
| connection->add_callback ("address_oracle", fun); |
| } |
| |
| extern "C" gcc_c_fe_context_function gcc_c_fe_context; |
| |
| #ifdef __GNUC__ |
| #pragma GCC visibility push(default) |
| #endif |
| |
| extern "C" |
| struct gcc_c_context * |
| gcc_c_fe_context (enum gcc_base_api_version base_version, |
| enum gcc_c_api_version c_version) |
| { |
| if ((base_version != GCC_FE_VERSION_0 && base_version != GCC_FE_VERSION_1) |
| || (c_version != GCC_C_FE_VERSION_0 && c_version != GCC_C_FE_VERSION_1)) |
| return NULL; |
| |
| return new libcc1 (&c_vtable); |
| } |