2019-01-01 14:01:51 +08:00
|
|
|
# Copyright 2015-2019 Free Software Foundation, Inc.
|
C++ compile support
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.
2018-08-30 06:12:24 +08:00
|
|
|
|
|
|
|
|
# This program 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 of the License, or
|
|
|
|
|
# (at your option) any later version.
|
|
|
|
|
#
|
|
|
|
|
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
|
|
|
|
# Method tests for GDB's C++ compile feature.
|
|
|
|
|
|
|
|
|
|
load_lib compile-support.exp
|
|
|
|
|
|
|
|
|
|
standard_testfile .cc
|
|
|
|
|
|
|
|
|
|
if {[skip_cplus_tests]} {
|
|
|
|
|
untested "skipping C++ tests"
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if {[prepare_for_testing $testfile $testfile $srcfile \
|
|
|
|
|
{debug nowarnings c++}]} {
|
|
|
|
|
return -1
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if {![runto_main]} {
|
|
|
|
|
untested "could not run to main"
|
|
|
|
|
return -1
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if {[skip_compile_feature_tests]} {
|
|
|
|
|
untested \
|
|
|
|
|
"compile command not supported (could not find libcc1 shared library?)"
|
|
|
|
|
return -1
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
gdb_breakpoint [gdb_get_line_number "break here" $srcfile]
|
|
|
|
|
gdb_continue_to_breakpoint "testing location"
|
|
|
|
|
|
|
|
|
|
CompileExpression::new "var"
|
|
|
|
|
CompileExpression::test "a->get_var ()" 21
|
|
|
|
|
CompileExpression::test "a->get_var (static_cast<unsigned long> (1))" 100
|
|
|
|
|
CompileExpression::test "a->get_var (static_cast<int> (1))" 101
|
|
|
|
|
CompileExpression::test "a->get_var (static_cast<float> (1))" 102
|
|
|
|
|
CompileExpression::test "a->get_var (static_cast<void *> (a))" 103
|
|
|
|
|
CompileExpression::test "a->get_var (*a)" 104
|
|
|
|
|
CompileExpression::test "a->get_var (*ac)" 105
|
|
|
|
|
CompileExpression::test "a->get_var1 (1)" 42
|
|
|
|
|
CompileExpression::test "a->get_var2 (1, 2)" 88
|
|
|
|
|
CompileExpression::test "A::get_1 (1)" 2
|
|
|
|
|
CompileExpression::test "A::get_2 (1, 2)" 5
|
|
|
|
|
CompileExpression::test "A::get_1 (a->get_var ())" 22
|
|
|
|
|
CompileExpression::test "a->get_var1 (a->get_var () - 16)" 672
|
|
|
|
|
CompileExpression::test "a->get_var2 (a->get_var (), A::get_1 (2))" 336
|
|
|
|
|
CompileExpression::test "get_value ()" 200
|
|
|
|
|
CompileExpression::test "get_value (a)" 21
|
|
|
|
|
CompileExpression::test "get_value (get_value ())" 200
|
|
|
|
|
CompileExpression::test {(a->*pmf) (1)} 101
|
|
|
|
|
CompileExpression::test \
|
|
|
|
|
{pmf = &A::get_var1; var = (a->*pmf) (2); pmf = &A::get_var} 84 -explicit
|
|
|
|
|
CompileExpression::test {(a->**pmf_p) (1)} 101
|
