binutils-gdb/gdb/testsuite/gdb.compile/compile-cplus-virtual.exp

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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
# Copyright 2015-2018 Free Software Foundation, Inc.
# 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/>.
# Virtual method/inheritance 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 "b.doit ()" 2
CompileExpression::test "c.doit ()" 3
CompileExpression::test "d.doit ()" 4
CompileExpression::test "ap->doit ()" 4
CompileExpression::test "b.doit2 ()" 22
CompileExpression::test "c.doit2 ()" 33
CompileExpression::test "d.doit2 ()" 44
CompileExpression::test "ap->doit2 ()" 44
CompileExpression::test "b.doit3 ()" -3
CompileExpression::test "c.doit3 ()" -3
CompileExpression::test "d.doit3 ()" -3
# These two tests are "disabled". They represent new/future features.
# CompileExpression::test \
[concat "struct ABC {int doit2() { return 3333; }} abc;" \
"var = abc.doit2()"] \
3333 -explicit
# CompileExpression::test \
[concat "struct ABC : A {int doit2() { return 4444; }} abc;" \
"var = abc.doit2()"] \
4444 -explicit
# Test some error conditions
gdb_test "compile code A a;" \
".*cannot declare variable .a. to be of abstract type.*Compilation failed."