forked from Imagelibrary/binutils-gdb
078a020797
This patch adds *basic* support for C++ to the compile feature. It does
most simple type conversions, including everything that C compile does and
your basic "with-classes" type of C++.
I've written a new compile-support.exp support file which adds a new test
facility for automating and simplifying "compile print" vs "compile code"
testing. See testsuite/lib/compile-support.exp and CompileExpression
for more on that. The tests use this facility extensively.
This initial support has several glaring omissions:
- No template support at all
I have follow-on patches for this, but they add much complexity
to this "basic" support. Consequently, they will be submitted separately.
- Cannot print functions
The code template needs tweaking, and I simply haven't gotten to it yet.
- So-called "special function" support is not included
Using constructors, destructors, operators, etc will not work. I have
follow-on patches for that, but they require some work because of the
recent churn in symbol searching.
- There are several test suite references to "compile/1234" bugs.
I will file bugs and update the test suite's bug references before pushing
these patches.
The test suite started as a copy of the original C-language support, but
I have written tests to exercise the basic functionality of the plug-in.
I've added a new option for outputting debug messages for C++ type-conversion
("debug compile-cplus-types").
gdb/ChangeLog:
* Makefile.in (SUBDIR_GCC_COMPILE_SRCS): Add compile-cplus-symbols.c
and compile-cplus-types.c.
(HFILES_NO_SRCDIR): Add gcc-cp-plugin.h.
* c-lang.c (cplus_language_defn): Set C++ compile functions.
* c-lang.h (cplus_get_compile_context, cplus_compute_program):
Declare.
* compile/compile-c-support.c: Include compile-cplus.h.
(load_libcompile): Templatize.
(get_compile_context): "New" function.
(c_get_compile_context): Use get_compile_context.
(cplus_get_compile_context): New function.
(cplus_push_user_expression, cplus_pop_user_expression)
(cplus_add_code_header, cplus_add_input, cplus_compile_program)
(cplus_compute_program): Define new structs/functions.
* compile/compile-cplus-symmbols.c: New file.
* compile/compile-cplus-types.c: New file.
* compile/compile-cplus.h: New file.
* compile/compile-internal.h (debug_compile_oracle, GCC_TYPE_NONE):
Declare.
* compile/compile-object-load.c (get_out_value_type): Use
strncmp_iw when comparing symbol names.
(compile_object_load): Add mst_bss and mst_data.
* compile/compile.c (_initialize_compile): Remove
-Wno-implicit-function-declaration from `compile_args'.
* compile/gcc-cp-plugin.h: New file.
* NEWS: Mention C++ compile support and new debug options.
gdb/testsuite/ChangeLog:
* gdb.compile/compile-cplus-anonymous.cc: New file.
* gdb.compile/compile-cplus-anonymous.exp: New file.
* gdb.compile/compile-cplus-array-decay.cc: New file.
* gdb.compile/compile-cplus-array-decay.exp: New file.
* gdb.compile/compile-cplus-inherit.cc: New file.
* gdb.compile/compile-cplus-inherit.exp: New file.
* gdb.compile/compile-cplus-member.cc: New file.
* gdb.compile/compile-cplus-member.exp: New file.
* gdb.compile/compile-cplus-method.cc: New file.
* gdb.compile/compile-cplus-method.exp: New file.
* gdb.compile/compile-cplus-mod.c: "New" file.
* gdb.compile/compile-cplus-namespace.cc: New file.
* gdb.compile/compile-cplus-namespace.exp: New file.
* gdb.compile/compile-cplus-nested.cc: New file.
* gdb.compile/compile-cplus-nested.exp: New file.
* gdb.compile/compile-cplus-print.c: "New" file.
* gdb.compile/compile-cplus-print.exp: "New" file.
* gdb.compile/compile-cplus-virtual.cc: New file.
* gdb.compile/compile-cplus-virtual.exp: New file.
* gdb.compile/compile-cplus.c: "New" file.
* gdb.compile/compile-cplus.exp: "New" file.
* lib/compile-support.exp: New file.
doc/ChangeLog:
* gdb.texinfo (Compiling and injecting code in GDB): Document
set/show "compile-oracle" and "compile-cplus-types" commands.
84 lines
1.8 KiB
C++
84 lines
1.8 KiB
C++
/* Copyright 2015-2018 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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class A;
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static int get_values (const A& a);
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enum myenum {E_A = 10, E_B, E_C, E_D, E_E};
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namespace N {
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typedef enum {NA = 20, NB, NC, ND} ANON_NE;
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}
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namespace {
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typedef enum {AA = 40, AB, AC, AD} ANON_E;
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}
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ANON_E g_e = AC;
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class A
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{
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public:
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typedef int ATYPE;
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A () : public_ (1), protected_ (N::NB), private_ (3) {}
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ATYPE public_;
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static const myenum s_public_;
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friend ATYPE get_values (const A&);
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protected:
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N::ANON_NE protected_;
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static N::ANON_NE s_protected_;
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private:
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ATYPE private_;
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static myenum s_private_;
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};
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const myenum A::s_public_ = E_A;
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N::ANON_NE A::s_protected_ = N::NA;
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myenum A::s_private_ = E_C;
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static A::ATYPE
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get_values (const A& a)
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{
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A::ATYPE val;
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val = a.public_ + a.private_; // 1 + 3
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if (a.protected_ == N::NB) // + 21
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val += 21;
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if (a.s_public_ == E_A) // +10
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val += 10;
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if (a.s_protected_ == N::NA) // +20
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val += 20;
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if (a.s_private_ == E_C) // +30
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val += 30;
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if (g_e == AC) // +40
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val += 40;
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return val; // = 125
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}
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typedef int A::*PMI;
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int
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main ()
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{
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A a;
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int var = 1234;
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PMI pmi = &A::public_;
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return a.*pmi + get_values (a); // break here
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}
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