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.
80 lines
2.2 KiB
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80 lines
2.2 KiB
Plaintext
# 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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#
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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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#
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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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load_lib compile-support.exp
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standard_testfile
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get_compiler_info
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set options {}
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if [test_compiler_info gcc*] {
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lappend options additional_flags=-g3
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lappend options additional_flags=-std=gnu++11
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lappend options c++
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}
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set srcfilesoptions [list ${srcfile} ${options}]
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if { [eval build_executable_from_specs ${testfile}.exp $testfile {$options} ${srcfilesoptions}] } {
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return -1
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}
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clean_restart ${testfile}
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if {[skip_compile_feature_tests]} {
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untested "compile command not supported (could not find libcc1 shared library?)"
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return -1
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}
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gdb_test_no_output "set language c++" \
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"Set language to C++"
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if ![runto_main] {
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return -1
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}
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gdb_test "compile print varint" " = 10"
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gdb_test "compile print vararray" " = \\{1, 2, 3, 4, 5\\}"
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setup_kfail compile/23586 *-*-*
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gdb_test "compile print main" " = \\{int \\(void\\)\\} 0x\[0-9a-f\]+"
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setup_kfail compile/23587 *-*-*
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set test "compile print *vararray@3"
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gdb_test_multiple $test $test {
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-re " = \\{1, 2, 3\\}\r\n$gdb_prompt $" {
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pass $test
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}
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-re "warning: .*All references to this method will be undefined\.\r\n" {
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exp_continue
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}
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}
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setup_kfail compile/23587 *-*-*
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set test "compile print *vararrayp@3"
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gdb_test_multiple $test $test {
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-re " = \\{1, 2, 3\\}\r\n$gdb_prompt $" {
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pass $test
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}
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-re "warning: .*All references to this method will be undefined\.\r\n" {
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exp_continue
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}
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}
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gdb_test "compile print/x 256" " = 0x100"
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gdb_test {print $} " = 256"
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gdb_test "compile print varobject" { = {field = 1}}
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