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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.
195 lines
5.9 KiB
C++
195 lines
5.9 KiB
C++
/* C language support definitions for GDB, the GNU debugger.
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Copyright (C) 1992-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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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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#if !defined (C_LANG_H)
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#define C_LANG_H 1
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struct ui_file;
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struct language_arch_info;
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struct type_print_options;
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struct parser_state;
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#include "value.h"
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#include "macroexp.h"
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#include "parser-defs.h"
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#include "common/enum-flags.h"
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/* The various kinds of C string and character. Note that these
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values are chosen so that they may be or'd together in certain
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ways. */
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enum c_string_type_values
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{
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/* An ordinary string: "value". */
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C_STRING = 0,
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/* A wide string: L"value". */
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C_WIDE_STRING = 1,
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/* A 16-bit Unicode string: u"value". */
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C_STRING_16 = 2,
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/* A 32-bit Unicode string: U"value". */
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C_STRING_32 = 3,
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/* An ordinary char: 'v'. This can also be or'd with one of the
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above to form the corresponding CHAR value from a STRING
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value. */
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C_CHAR = 4,
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/* A wide char: L'v'. */
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C_WIDE_CHAR = 5,
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/* A 16-bit Unicode char: u'v'. */
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C_CHAR_16 = 6,
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/* A 32-bit Unicode char: U'v'. */
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C_CHAR_32 = 7
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};
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DEF_ENUM_FLAGS_TYPE (enum c_string_type_values, c_string_type);
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/* Defined in c-exp.y. */
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extern int c_parse (struct parser_state *);
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extern int c_parse_escape (const char **, struct obstack *);
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/* Defined in c-typeprint.c */
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extern void c_print_type (struct type *, const char *,
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struct ui_file *, int, int,
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const struct type_print_options *);
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/* Print a type but allow the precise language to be specified. */
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extern void c_print_type (struct type *, const char *,
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struct ui_file *, int, int,
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enum language,
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const struct type_print_options *);
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extern void c_print_typedef (struct type *,
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struct symbol *,
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struct ui_file *);
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extern void c_val_print (struct type *,
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int, CORE_ADDR,
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struct ui_file *, int,
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struct value *,
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const struct value_print_options *);
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extern void c_value_print (struct value *, struct ui_file *,
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const struct value_print_options *);
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/* These are in c-lang.c: */
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extern struct value *evaluate_subexp_c (struct type *expect_type,
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struct expression *exp,
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int *pos,
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enum noside noside);
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extern void c_printchar (int, struct type *, struct ui_file *);
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extern void c_printstr (struct ui_file * stream,
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struct type *elttype,
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const gdb_byte *string,
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unsigned int length,
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const char *user_encoding,
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int force_ellipses,
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const struct value_print_options *options);
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extern void c_language_arch_info (struct gdbarch *gdbarch,
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struct language_arch_info *lai);
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extern const struct exp_descriptor exp_descriptor_c;
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extern void c_emit_char (int c, struct type *type,
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struct ui_file *stream, int quoter);
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extern const struct op_print c_op_print_tab[];
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extern gdb::unique_xmalloc_ptr<char> c_watch_location_expression
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(struct type *type, CORE_ADDR addr);
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/* These are in c-typeprint.c: */
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extern void c_type_print_base (struct type *, struct ui_file *,
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int, int, const struct type_print_options *);
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/* These are in cp-valprint.c */
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extern void cp_print_class_member (const gdb_byte *, struct type *,
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struct ui_file *, const char *);
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extern void cp_print_value_fields (struct type *, struct type *,
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LONGEST, CORE_ADDR,
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struct ui_file *, int,
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struct value *,
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const struct value_print_options *,
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struct type **, int);
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extern void cp_print_value_fields_rtti (struct type *,
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const gdb_byte *, LONGEST, CORE_ADDR,
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struct ui_file *, int,
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struct value *,
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const struct value_print_options *,
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struct type **, int);
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extern int cp_is_vtbl_ptr_type (struct type *);
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extern int cp_is_vtbl_member (struct type *);
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/* These are in c-valprint.c. */
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extern int c_textual_element_type (struct type *, char);
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/* Create a new instance of the C compiler and return it. The new
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compiler is owned by the caller and must be freed using the destroy
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method. This function never returns NULL, but rather throws an
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exception on failure. This is suitable for use as the
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la_get_compile_instance language method. */
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extern compile_instance *c_get_compile_context (void);
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/* Create a new instance of the C++ compiler and return it. The new
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compiler is owned by the caller and must be freed using the destroy
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method. This function never returns NULL, but rather throws an
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exception on failure. This is suitable for use as the
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la_get_compile_instance language method. */
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extern compile_instance *cplus_get_compile_context ();
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/* This takes the user-supplied text and returns a new bit of code to
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compile.
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This is used as the la_compute_program language method; see that
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for a description of the arguments. */
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extern std::string c_compute_program (compile_instance *inst,
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const char *input,
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struct gdbarch *gdbarch,
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const struct block *expr_block,
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CORE_ADDR expr_pc);
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/* This takes the user-supplied text and returns a new bit of code to compile.
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This is used as the la_compute_program language method; see that
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for a description of the arguments. */
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extern std::string cplus_compute_program (compile_instance *inst,
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const char *input,
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struct gdbarch *gdbarch,
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const struct block *expr_block,
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CORE_ADDR expr_pc);
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#endif /* !defined (C_LANG_H) */
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