/* General Compile and inject code
- Copyright (C) 2014 Free Software Foundation, Inc.
+ Copyright (C) 2014-2019 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "interps.h"
+#include "top.h"
#include "ui-out.h"
#include "command.h"
#include "cli/cli-script.h"
#include "cli/cli-utils.h"
+#include "cli/cli-option.h"
#include "completer.h"
#include "gdbcmd.h"
#include "compile.h"
#include "source.h"
#include "block.h"
#include "arch-utils.h"
-#include "filestuff.h"
+#include "gdbsupport/filestuff.h"
#include "target.h"
#include "osabi.h"
+#include "gdbsupport/gdb_wait.h"
+#include "valprint.h"
+#include "gdbsupport/gdb_optional.h"
+#include "gdbsupport/gdb_unlinker.h"
+#include "gdbsupport/pathstuff.h"
\f
/* Debug flag for "compile" commands. */
-int compile_debug;
+bool compile_debug;
+
+/* Object of this type are stored in the compiler's symbol_err_map. */
+
+struct symbol_error
+{
+ /* The symbol. */
+
+ const struct symbol *sym;
+
+ /* The error message to emit. This is malloc'd and owned by the
+ hash table. */
+
+ char *message;
+};
+
+/* Hash a type_map_instance. */
+
+static hashval_t
+hash_type_map_instance (const void *p)
+{
+ const struct type_map_instance *inst = (const struct type_map_instance *) p;
+
+ return htab_hash_pointer (inst->type);
+}
+
+/* Check two type_map_instance objects for equality. */
+
+static int
+eq_type_map_instance (const void *a, const void *b)
+{
+ const struct type_map_instance *insta = (const struct type_map_instance *) a;
+ const struct type_map_instance *instb = (const struct type_map_instance *) b;
+
+ return insta->type == instb->type;
+}
+
+/* Hash function for struct symbol_error. */
+
+static hashval_t
+hash_symbol_error (const void *a)
+{
+ const struct symbol_error *se = (const struct symbol_error *) a;
+
+ return htab_hash_pointer (se->sym);
+}
+
+/* Equality function for struct symbol_error. */
+
+static int
+eq_symbol_error (const void *a, const void *b)
+{
+ const struct symbol_error *sea = (const struct symbol_error *) a;
+ const struct symbol_error *seb = (const struct symbol_error *) b;
+
+ return sea->sym == seb->sym;
+}
+
+/* Deletion function for struct symbol_error. */
+
+static void
+del_symbol_error (void *a)
+{
+ struct symbol_error *se = (struct symbol_error *) a;
+
+ xfree (se->message);
+ xfree (se);
+}
+
+/* Constructor for compile_instance. */
+
+compile_instance::compile_instance (struct gcc_base_context *gcc_fe,
+ const char *options)
+ : m_gcc_fe (gcc_fe), m_gcc_target_options (options),
+ m_type_map (htab_create_alloc (10, hash_type_map_instance,
+ eq_type_map_instance,
+ xfree, xcalloc, xfree)),
+ m_symbol_err_map (htab_create_alloc (10, hash_symbol_error,
+ eq_symbol_error, del_symbol_error,
+ xcalloc, xfree))
+{
+}
+
+/* See compile-internal.h. */
+
+bool
+compile_instance::get_cached_type (struct type *type, gcc_type *ret) const
+{
+ struct type_map_instance inst, *found;
+
+ inst.type = type;
+ found = (struct type_map_instance *) htab_find (m_type_map.get (), &inst);
+ if (found != NULL)
+ {
+ *ret = found->gcc_type_handle;
+ return true;
+ }
+
+ return false;
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::insert_type (struct type *type, gcc_type gcc_type)
+{
+ struct type_map_instance inst, *add;
+ void **slot;
+
+ inst.type = type;
+ inst.gcc_type_handle = gcc_type;
+ slot = htab_find_slot (m_type_map.get (), &inst, INSERT);
+
+ add = (struct type_map_instance *) *slot;
+ /* The type might have already been inserted in order to handle
+ recursive types. */
+ if (add != NULL && add->gcc_type_handle != gcc_type)
+ error (_("Unexpected type id from GCC, check you use recent enough GCC."));
+
+ if (add == NULL)
+ {
+ add = XNEW (struct type_map_instance);
+ *add = inst;
+ *slot = add;
+ }
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::insert_symbol_error (const struct symbol *sym,
+ const char *text)
+{
+ struct symbol_error e;
+ void **slot;
+
+ e.sym = sym;
+ slot = htab_find_slot (m_symbol_err_map.get (), &e, INSERT);
+ if (*slot == NULL)
+ {
+ struct symbol_error *ep = XNEW (struct symbol_error);
+
+ ep->sym = sym;
+ ep->message = xstrdup (text);
+ *slot = ep;
+ }
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::error_symbol_once (const struct symbol *sym)
+{
+ struct symbol_error search;
+ struct symbol_error *err;
+
+ if (m_symbol_err_map == NULL)
+ return;
+
+ search.sym = sym;
+ err = (struct symbol_error *) htab_find (m_symbol_err_map.get (), &search);
+ if (err == NULL || err->message == NULL)
+ return;
+
+ gdb::unique_xmalloc_ptr<char> message (err->message);
+ err->message = NULL;
+ error (_("%s"), message.get ());
+}
/* Implement "show debug compile". */
\f
-/* Check *ARG for a "-raw" or "-r" argument. Return 0 if not seen.
- Return 1 if seen and update *ARG. */
+/* Options for the compile command. */
-static int
-check_raw_argument (char **arg)
+struct compile_options
{
- *arg = skip_spaces (*arg);
+ /* For -raw. */
+ bool raw = false;
+};
+
+using compile_flag_option_def
+ = gdb::option::flag_option_def<compile_options>;
+
+static const gdb::option::option_def compile_command_option_defs[] = {
+
+ compile_flag_option_def {
+ "raw",
+ [] (compile_options *opts) { return &opts->raw; },
+ N_("Suppress automatic 'void _gdb_expr () { CODE }' wrapping."),
+ },
- if (arg != NULL
- && (check_for_argument (arg, "-raw", sizeof ("-raw") - 1)
- || check_for_argument (arg, "-r", sizeof ("-r") - 1)))
- return 1;
- return 0;
+};
+
+/* Create an option_def_group for the "compile" command's options,
+ with OPTS as context. */
+
+static gdb::option::option_def_group
+make_compile_options_def_group (compile_options *opts)
+{
+ return {{compile_command_option_defs}, opts};
}
/* Handle the input from the 'compile file' command. The "compile
that may contain calls to the GCC compiler. */
static void
-compile_file_command (char *arg, int from_tty)
+compile_file_command (const char *args, int from_tty)
{
- enum compile_i_scope_types scope = COMPILE_I_SIMPLE_SCOPE;
- char *buffer;
- struct cleanup *cleanup;
+ scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0);
- cleanup = make_cleanup_restore_integer (&interpreter_async);
- interpreter_async = 0;
+ /* Check if a -raw option is provided. */
- /* Check the user did not just <enter> after command. */
- if (arg == NULL)
- error (_("You must provide a filename for this command."));
+ compile_options options;
- /* Check if a raw (-r|-raw) argument is provided. */
- if (arg != NULL && check_raw_argument (&arg))
- {
- scope = COMPILE_I_RAW_SCOPE;
- arg = skip_spaces (arg);
- }
+ const gdb::option::option_def_group group
+ = make_compile_options_def_group (&options);
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR,
+ group);
- /* After processing arguments, check there is a filename at the end
- of the command. */
- if (arg[0] == '\0')
- error (_("You must provide a filename with the raw option set."));
+ enum compile_i_scope_types scope
+ = options.raw ? COMPILE_I_RAW_SCOPE : COMPILE_I_SIMPLE_SCOPE;
- if (arg[0] == '-')
- error (_("Unknown argument specified."));
+ args = skip_spaces (args);
+
+ /* After processing options, check whether we have a filename. */
+ if (args == nullptr || args[0] == '\0')
+ error (_("You must provide a filename for this command."));
- arg = skip_spaces (arg);
- arg = gdb_abspath (arg);
- make_cleanup (xfree, arg);
- buffer = xstrprintf ("#include \"%s\"\n", arg);
- make_cleanup (xfree, buffer);
- eval_compile_command (NULL, buffer, scope);
- do_cleanups (cleanup);
+ args = skip_spaces (args);
+ gdb::unique_xmalloc_ptr<char> abspath = gdb_abspath (args);
+ std::string buffer = string_printf ("#include \"%s\"\n", abspath.get ());
+ eval_compile_command (NULL, buffer.c_str (), scope, NULL);
+}
+
+/* Completer for the "compile file" command. */
+
+static void
+compile_file_command_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word)
+{
+ const gdb::option::option_def_group group
+ = make_compile_options_def_group (nullptr);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group))
+ return;
+
+ word = advance_to_filename_complete_word_point (tracker, text);
+ filename_completer (ignore, tracker, text, word);
}
/* Handle the input from the 'compile code' command. The
compile command is the language currently set in GDB. */
static void
-compile_code_command (char *arg, int from_tty)
+compile_code_command (const char *args, int from_tty)
{
- struct cleanup *cleanup;
- enum compile_i_scope_types scope = COMPILE_I_SIMPLE_SCOPE;
+ scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0);
- cleanup = make_cleanup_restore_integer (&interpreter_async);
- interpreter_async = 0;
+ compile_options options;
- if (arg != NULL && check_raw_argument (&arg))
- {
- scope = COMPILE_I_RAW_SCOPE;
- arg = skip_spaces (arg);
- }
+ const gdb::option::option_def_group group
+ = make_compile_options_def_group (&options);
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group);
- arg = skip_spaces (arg);
+ enum compile_i_scope_types scope
+ = options.raw ? COMPILE_I_RAW_SCOPE : COMPILE_I_SIMPLE_SCOPE;
- if (arg != NULL && !check_for_argument (&arg, "--", sizeof ("--") - 1))
+ if (args && *args)
+ eval_compile_command (NULL, args, scope, NULL);
+ else
{
- if (arg[0] == '-')
- error (_("Unknown argument specified."));
+ counted_command_line l = get_command_line (compile_control, "");
+
+ l->control_u.compile.scope = scope;
+ execute_control_command_untraced (l.get ());
}
+}
+
+/* Completer for the "compile code" command. */
+
+static void
+compile_code_command_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word)
+{
+ const gdb::option::option_def_group group
+ = make_compile_options_def_group (nullptr);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group))
+ return;
+
+ word = advance_to_expression_complete_word_point (tracker, text);
+ symbol_completer (ignore, tracker, text, word);
+}
+
+/* Callback for compile_print_command. */
+
+void
+compile_print_value (struct value *val, void *data_voidp)
+{
+ const value_print_options *print_opts = (value_print_options *) data_voidp;
+
+ print_value (val, *print_opts);
+}
+
+/* Handle the input from the 'compile print' command. The "compile
+ print" command is used to evaluate and print an expression that may
+ contain calls to the GCC compiler. The language expected in this
+ compile command is the language currently set in GDB. */
+
+static void
+compile_print_command (const char *arg, int from_tty)
+{
+ enum compile_i_scope_types scope = COMPILE_I_PRINT_ADDRESS_SCOPE;
+ value_print_options print_opts;
+
+ scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0);
+
+ get_user_print_options (&print_opts);
+ /* Override global settings with explicit options, if any. */
+ auto group = make_value_print_options_def_group (&print_opts);
+ gdb::option::process_options
+ (&arg, gdb::option::PROCESS_OPTIONS_REQUIRE_DELIMITER, group);
+
+ print_command_parse_format (&arg, "compile print", &print_opts);
+
+ /* Passing &PRINT_OPTS as SCOPE_DATA is safe as do_module_cleanup
+ will not touch the stale pointer if compile_object_run has
+ already quit. */
if (arg && *arg)
- eval_compile_command (NULL, arg, scope);
+ eval_compile_command (NULL, arg, scope, &print_opts);
else
{
- struct command_line *l = get_command_line (compile_control, "");
+ counted_command_line l = get_command_line (compile_control, "");
- make_cleanup_free_command_lines (&l);
l->control_u.compile.scope = scope;
- execute_control_command_untraced (l);
+ l->control_u.compile.scope_data = &print_opts;
+ execute_control_command_untraced (l.get ());
}
-
- do_cleanups (cleanup);
}
/* A cleanup function to remove a directory and all its contents. */
static void
do_rmdir (void *arg)
{
- const char *dir = arg;
+ const char *dir = (const char *) arg;
char *zap;
-
- gdb_assert (strncmp (dir, TMP_PREFIX, strlen (TMP_PREFIX)) == 0);
+ int wstat;
+
+ gdb_assert (startswith (dir, TMP_PREFIX));
zap = concat ("rm -rf ", dir, (char *) NULL);
- system (zap);
+ wstat = system (zap);
+ if (wstat == -1 || !WIFEXITED (wstat) || WEXITSTATUS (wstat) != 0)
+ warning (_("Could not remove temporary directory %s"), dir);
+ XDELETEVEC (zap);
}
/* Return the name of the temporary directory to use for .o files, and
strcpy (tname, TEMPLATE);
#undef TEMPLATE
-#ifdef HAVE_MKDTEMP
tempdir_name = mkdtemp (tname);
-#else
- error (_("Command not supported on this host."));
-#endif
if (tempdir_name == NULL)
perror_with_name (_("Could not make temporary directory"));
return tempdir_name;
}
-/* Compute the names of source and object files to use. The names are
- allocated by malloc and should be freed by the caller. */
+/* Compute the names of source and object files to use. */
-static void
-get_new_file_names (char **source_file, char **object_file)
+static compile_file_names
+get_new_file_names ()
{
static int seq;
const char *dir = get_compile_file_tempdir ();
++seq;
- *source_file = xstrprintf ("%s%sout%d.c", dir, SLASH_STRING, seq);
- *object_file = xstrprintf ("%s%sout%d.o", dir, SLASH_STRING, seq);
+
+ return compile_file_names (string_printf ("%s%sout%d.c",
+ dir, SLASH_STRING, seq),
+ string_printf ("%s%sout%d.o",
+ dir, SLASH_STRING, seq));
}
/* Get the block and PC at which to evaluate an expression. */
block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (cursal.symtab),
STATIC_BLOCK);
if (block != NULL)
- *pc = BLOCK_START (block);
+ *pc = BLOCK_ENTRY_PC (block);
}
else
- *pc = BLOCK_START (block);
+ *pc = BLOCK_ENTRY_PC (block);
return block;
}
-/* Call gdb_buildargv, set its result for S into *ARGVP but calculate also the
- number of parsed arguments into *ARGCP. If gdb_buildargv has returned NULL
- then *ARGCP is set to zero. */
+/* Call buildargv (via gdb_argv), set its result for S into *ARGVP but
+ calculate also the number of parsed arguments into *ARGCP. If
+ buildargv has returned NULL then *ARGCP is set to zero. */
static void
build_argc_argv (const char *s, int *argcp, char ***argvp)
{
- *argvp = gdb_buildargv (s);
- *argcp = countargv (*argvp);
+ gdb_argv args (s);
+
+ *argcp = args.count ();
+ *argvp = args.release ();
}
/* String for 'set compile-args' and 'show compile-args'. */
/* Implement 'set compile-args'. */
static void
-set_compile_args (char *args, int from_tty, struct cmd_list_element *c)
+set_compile_args (const char *args, int from_tty, struct cmd_list_element *c)
{
freeargv (compile_args_argv);
build_argc_argv (compile_args, &compile_args_argc, &compile_args_argv);
{
int argi;
- *argvp = xrealloc (*argvp, (*argcp + argc + 1) * sizeof (**argvp));
+ *argvp = XRESIZEVEC (char *, *argvp, (*argcp + argc + 1));
for (argi = 0; argi < argc; argi++)
(*argvp)[(*argcp)++] = xstrdup (argv[argi]);
(*argvp)[(*argcp)] = NULL;
}
+/* String for 'set compile-gcc' and 'show compile-gcc'. */
+static char *compile_gcc;
+
+/* Implement 'show compile-gcc'. */
+
+static void
+show_compile_gcc (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Compile command GCC driver filename is \"%s\".\n"),
+ value);
+}
+
/* Return DW_AT_producer parsed for get_selected_frame () (if any).
Return NULL otherwise.
const char *cs;
if (symtab == NULL || symtab->producer == NULL
- || strncmp (symtab->producer, "GNU ", strlen ("GNU ")) != 0)
+ || !startswith (symtab->producer, "GNU "))
return NULL;
cs = symtab->producer;
while (*cs != 0 && *cs != '-')
- cs = skip_spaces_const (skip_to_space_const (cs));
+ cs = skip_spaces (skip_to_space (cs));
if (*cs != '-')
return NULL;
return cs;
}
-/* Produce final vector of GCC compilation options. First element is target
- size ("-m64", "-m32" etc.), optionally followed by DW_AT_producer options
- and then compile-args string GDB variable. */
+/* Filter out unwanted options from *ARGCP and ARGV. */
static void
-get_args (const struct compile_instance *compiler, struct gdbarch *gdbarch,
+filter_args (int *argcp, char **argv)
+{
+ char **destv;
+
+ for (destv = argv; *argv != NULL; argv++)
+ {
+ /* -fpreprocessed may get in commonly from ccache. */
+ if (strcmp (*argv, "-fpreprocessed") == 0)
+ {
+ xfree (*argv);
+ (*argcp)--;
+ continue;
+ }
+ *destv++ = *argv;
+ }
+ *destv = NULL;
+}
+
+/* Produce final vector of GCC compilation options.
+
+ The first element of the combined argument vector are arguments
+ relating to the target size ("-m64", "-m32" etc.). These are
+ sourced from the inferior's architecture.
+
+ The second element of the combined argument vector are arguments
+ stored in the inferior DW_AT_producer section. If these are stored
+ in the inferior (there is no guarantee that they are), they are
+ added to the vector.
+
+ The third element of the combined argument vector are argument
+ supplied by the language implementation provided by
+ compile-{lang}-support. These contain language specific arguments.
+
+ The final element of the combined argument vector are arguments
+ supplied by the "set compile-args" command. These are always
+ appended last so as to override any of the arguments automatically
+ generated above. */
+
+static void
+get_args (const compile_instance *compiler, struct gdbarch *gdbarch,
int *argcp, char ***argvp)
{
const char *cs_producer_options;
int argc_compiler;
char **argv_compiler;
- build_argc_argv (gdbarch_gcc_target_options (gdbarch),
+ build_argc_argv (gdbarch_gcc_target_options (gdbarch).c_str (),
argcp, argvp);
cs_producer_options = get_selected_pc_producer_options ();
char **argv_producer;
build_argc_argv (cs_producer_options, &argc_producer, &argv_producer);
+ filter_args (&argc_producer, argv_producer);
append_args (argcp, argvp, argc_producer, argv_producer);
freeargv (argv_producer);
}
- build_argc_argv (compiler->gcc_target_options,
+ build_argc_argv (compiler->gcc_target_options ().c_str (),
&argc_compiler, &argv_compiler);
append_args (argcp, argvp, argc_compiler, argv_compiler);
freeargv (argv_compiler);
append_args (argcp, argvp, compile_args_argc, compile_args_argv);
}
-/* A cleanup function to destroy a gdb_gcc_instance. */
-
-static void
-cleanup_compile_instance (void *arg)
-{
- struct compile_instance *inst = arg;
-
- inst->destroy (inst);
-}
-
-/* A cleanup function to unlink a file. */
-
-static void
-cleanup_unlink_file (void *arg)
-{
- const char *filename = arg;
-
- unlink (filename);
-}
-
/* A helper function suitable for use as the "print_callback" in the
compiler object. */
}
/* Process the compilation request. On success it returns the object
- file name and *SOURCE_FILEP is set to source file name. On an
- error condition, error () is called. The caller is responsible for
- freeing both strings. */
-
-static char *
-compile_to_object (struct command_line *cmd, char *cmd_string,
- enum compile_i_scope_types scope,
- char **source_filep)
-{
- char *code;
- char *source_file, *object_file;
- struct compile_instance *compiler;
- struct cleanup *cleanup, *inner_cleanup;
+ and source file names. On an error condition, error () is
+ called. */
+
+static compile_file_names
+compile_to_object (struct command_line *cmd, const char *cmd_string,
+ enum compile_i_scope_types scope)
+{
const struct block *expr_block;
CORE_ADDR trash_pc, expr_pc;
int argc;
char **argv;
int ok;
- FILE *src;
struct gdbarch *gdbarch = get_current_arch ();
- const char *os_rx;
- const char *arch_rx;
- char *triplet_rx;
- char *error_message;
+ std::string triplet_rx;
if (!target_has_execution)
error (_("The program must be running for the compile command to "\
/* Set up instance and context for the compiler. */
if (current_language->la_get_compile_instance == NULL)
- error (_("No compiler support for this language."));
- compiler = current_language->la_get_compile_instance ();
- cleanup = make_cleanup (cleanup_compile_instance, compiler);
+ error (_("No compiler support for language %s."),
+ current_language->la_name);
- compiler->fe->ops->set_print_callback (compiler->fe, print_callback, NULL);
-
- compiler->scope = scope;
- compiler->block = expr_block;
+ compile_instance *compiler_instance
+ = current_language->la_get_compile_instance ();
+ std::unique_ptr<compile_instance> compiler (compiler_instance);
+ compiler->set_print_callback (print_callback, NULL);
+ compiler->set_scope (scope);
+ compiler->set_block (expr_block);
/* From the provided expression, build a scope to pass to the
compiler. */
+
+ string_file input_buf;
+ const char *input;
+
if (cmd != NULL)
{
- struct ui_file *stream = mem_fileopen ();
struct command_line *iter;
- make_cleanup_ui_file_delete (stream);
- for (iter = cmd->body_list[0]; iter; iter = iter->next)
+ for (iter = cmd->body_list_0.get (); iter; iter = iter->next)
{
- fputs_unfiltered (iter->line, stream);
- fputs_unfiltered ("\n", stream);
+ input_buf.puts (iter->line);
+ input_buf.puts ("\n");
}
- code = ui_file_xstrdup (stream, NULL);
- make_cleanup (xfree, code);
+ input = input_buf.c_str ();
}
else if (cmd_string != NULL)
- code = cmd_string;
+ input = cmd_string;
else
error (_("Neither a simple expression, or a multi-line specified."));
- code = current_language->la_compute_program (compiler, code, gdbarch,
- expr_block, expr_pc);
- make_cleanup (xfree, code);
+ std::string code
+ = current_language->la_compute_program (compiler.get (), input, gdbarch,
+ expr_block, expr_pc);
if (compile_debug)
- fprintf_unfiltered (gdb_stdout, "debug output:\n\n%s", code);
+ fprintf_unfiltered (gdb_stdlog, "debug output:\n\n%s", code.c_str ());
- os_rx = osabi_triplet_regexp (gdbarch_osabi (gdbarch));
- arch_rx = gdbarch_gnu_triplet_regexp (gdbarch);
- triplet_rx = concat (arch_rx, "-[^-]*-", os_rx, (char *) NULL);
- make_cleanup (xfree, triplet_rx);
+ compiler->set_verbose (compile_debug);
- /* Set compiler command-line arguments. */
- get_args (compiler, gdbarch, &argc, &argv);
- make_cleanup_freeargv (argv);
+ if (compile_gcc[0] != 0)
+ {
+ if (compiler->version () < GCC_FE_VERSION_1)
+ error (_("Command 'set compile-gcc' requires GCC version 6 or higher "
+ "(libcc1 interface version 1 or higher)"));
- error_message = compiler->fe->ops->set_arguments (compiler->fe, triplet_rx,
- argc, argv);
- if (error_message != NULL)
+ compiler->set_driver_filename (compile_gcc);
+ }
+ else
{
- make_cleanup (xfree, error_message);
- error ("%s", error_message);
+ const char *os_rx = osabi_triplet_regexp (gdbarch_osabi (gdbarch));
+ const char *arch_rx = gdbarch_gnu_triplet_regexp (gdbarch);
+
+ /* Allow triplets with or without vendor set. */
+ triplet_rx = std::string (arch_rx) + "(-[^-]*)?-" + os_rx;
+ compiler->set_triplet_regexp (triplet_rx.c_str ());
}
+ /* Set compiler command-line arguments. */
+ get_args (compiler.get (), gdbarch, &argc, &argv);
+ gdb_argv argv_holder (argv);
+
+ gdb::unique_xmalloc_ptr<char> error_message;
+ error_message.reset (compiler->set_arguments (argc, argv,
+ triplet_rx.c_str ()));
+
+ if (error_message != NULL)
+ error ("%s", error_message.get ());
+
if (compile_debug)
{
int argi;
- fprintf_unfiltered (gdb_stdout, "Passing %d compiler options:\n", argc);
+ fprintf_unfiltered (gdb_stdlog, "Passing %d compiler options:\n", argc);
for (argi = 0; argi < argc; argi++)
- fprintf_unfiltered (gdb_stdout, "Compiler option %d: <%s>\n",
+ fprintf_unfiltered (gdb_stdlog, "Compiler option %d: <%s>\n",
argi, argv[argi]);
}
- get_new_file_names (&source_file, &object_file);
- inner_cleanup = make_cleanup (xfree, source_file);
- make_cleanup (xfree, object_file);
+ compile_file_names fnames = get_new_file_names ();
+
+ gdb::optional<gdb::unlinker> source_remover;
- src = gdb_fopen_cloexec (source_file, "w");
- if (src == NULL)
- perror_with_name (_("Could not open source file for writing"));
- make_cleanup (cleanup_unlink_file, source_file);
- if (fputs (code, src) == EOF)
- perror_with_name (_("Could not write to source file"));
- fclose (src);
+ {
+ gdb_file_up src = gdb_fopen_cloexec (fnames.source_file (), "w");
+ if (src == NULL)
+ perror_with_name (_("Could not open source file for writing"));
+
+ source_remover.emplace (fnames.source_file ());
+
+ if (fputs (code.c_str (), src.get ()) == EOF)
+ perror_with_name (_("Could not write to source file"));
+ }
if (compile_debug)
- fprintf_unfiltered (gdb_stdout, "source file produced: %s\n\n",
- source_file);
+ fprintf_unfiltered (gdb_stdlog, "source file produced: %s\n\n",
+ fnames.source_file ());
/* Call the compiler and start the compilation process. */
- compiler->fe->ops->set_source_file (compiler->fe, source_file);
-
- if (!compiler->fe->ops->compile (compiler->fe, object_file,
- compile_debug))
+ compiler->set_source_file (fnames.source_file ());
+ ok = compiler->compile (fnames.object_file (), compile_debug);
+ if (!ok)
error (_("Compilation failed."));
if (compile_debug)
- fprintf_unfiltered (gdb_stdout, "object file produced: %s\n\n",
- object_file);
+ fprintf_unfiltered (gdb_stdlog, "object file produced: %s\n\n",
+ fnames.object_file ());
- discard_cleanups (inner_cleanup);
- do_cleanups (cleanup);
- *source_filep = source_file;
- return object_file;
+ /* Keep the source file. */
+ source_remover->keep ();
+ return fnames;
}
/* The "compile" prefix command. */
static void
-compile_command (char *args, int from_tty)
+compile_command (const char *args, int from_tty)
{
/* If a sub-command is not specified to the compile prefix command,
assume it is a direct code compilation. */
/* See compile.h. */
void
-eval_compile_command (struct command_line *cmd, char *cmd_string,
- enum compile_i_scope_types scope)
+eval_compile_command (struct command_line *cmd, const char *cmd_string,
+ enum compile_i_scope_types scope, void *scope_data)
{
- char *object_file, *source_file;
+ struct compile_module *compile_module;
+
+ compile_file_names fnames = compile_to_object (cmd, cmd_string, scope);
- object_file = compile_to_object (cmd, cmd_string, scope, &source_file);
- if (object_file != NULL)
+ gdb::unlinker object_remover (fnames.object_file ());
+ gdb::unlinker source_remover (fnames.source_file ());
+
+ compile_module = compile_object_load (fnames, scope, scope_data);
+ if (compile_module == NULL)
{
- struct cleanup *cleanup_xfree, *cleanup_unlink;
- struct compile_module *compile_module;
-
- cleanup_xfree = make_cleanup (xfree, object_file);
- make_cleanup (xfree, source_file);
- cleanup_unlink = make_cleanup (cleanup_unlink_file, object_file);
- make_cleanup (cleanup_unlink_file, source_file);
- compile_module = compile_object_load (object_file, source_file);
- discard_cleanups (cleanup_unlink);
- do_cleanups (cleanup_xfree);
- compile_object_run (compile_module);
+ gdb_assert (scope == COMPILE_I_PRINT_ADDRESS_SCOPE);
+ eval_compile_command (cmd, cmd_string,
+ COMPILE_I_PRINT_VALUE_SCOPE, scope_data);
+ return;
}
+
+ /* Keep the files. */
+ source_remover.keep ();
+ object_remover.keep ();
+
+ compile_object_run (compile_module);
}
/* See compile/compile-internal.h. */
-char *
+std::string
compile_register_name_mangled (struct gdbarch *gdbarch, int regnum)
{
const char *regname = gdbarch_register_name (gdbarch, regnum);
- return xstrprintf ("__%s", regname);
+ return string_printf ("__%s", regname);
}
/* See compile/compile-internal.h. */
error (_("Cannot find gdbarch register \"%s\"."), regname);
}
-extern initialize_file_ftype _initialize_compile;
+/* Forwards to the plug-in. */
+
+#define FORWARD(OP,...) (m_gcc_fe->ops->OP (m_gcc_fe, ##__VA_ARGS__))
+
+/* See compile-internal.h. */
+
+void
+compile_instance::set_print_callback
+ (void (*print_function) (void *, const char *), void *datum)
+{
+ FORWARD (set_print_callback, print_function, datum);
+}
+
+/* See compile-internal.h. */
+
+unsigned int
+compile_instance::version () const
+{
+ return m_gcc_fe->ops->version;
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::set_verbose (int level)
+{
+ if (version () >= GCC_FE_VERSION_1)
+ FORWARD (set_verbose, level);
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::set_driver_filename (const char *filename)
+{
+ if (version () >= GCC_FE_VERSION_1)
+ FORWARD (set_driver_filename, filename);
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::set_triplet_regexp (const char *regexp)
+{
+ if (version () >= GCC_FE_VERSION_1)
+ FORWARD (set_triplet_regexp, regexp);
+}
+
+/* See compile-internal.h. */
+
+char *
+compile_instance::set_arguments (int argc, char **argv, const char *regexp)
+{
+ if (version () >= GCC_FE_VERSION_1)
+ return FORWARD (set_arguments, argc, argv);
+ else
+ return FORWARD (set_arguments_v0, regexp, argc, argv);
+}
+
+/* See compile-internal.h. */
+
+void
+compile_instance::set_source_file (const char *filename)
+{
+ FORWARD (set_source_file, filename);
+}
+
+/* See compile-internal.h. */
+
+bool
+compile_instance::compile (const char *filename, int verbose_level)
+{
+ if (version () >= GCC_FE_VERSION_1)
+ return FORWARD (compile, filename);
+ else
+ return FORWARD (compile_v0, filename, verbose_level);
+}
+
+#undef FORWARD
+
+/* See compile.h. */
+cmd_list_element *compile_cmd_element = nullptr;
void
_initialize_compile (void)
{
struct cmd_list_element *c = NULL;
- add_prefix_cmd ("compile", class_obscure, compile_command,
- _("\
+ compile_cmd_element = add_prefix_cmd ("compile", class_obscure,
+ compile_command, _("\
Command to compile source code and inject it into the inferior."),
&compile_command_list, "compile ", 1, &cmdlist);
add_com_alias ("expression", "compile", class_obscure, 0);
- add_cmd ("code", class_obscure, compile_code_command,
- _("\
+ const auto compile_opts = make_compile_options_def_group (nullptr);
+
+ static const std::string compile_code_help
+ = gdb::option::build_help (_("\
Compile, inject, and execute code.\n\
\n\
-Usage: compile code [-r|-raw] [--] [CODE]\n\
--r|-raw: Suppress automatic 'void _gdb_expr () { CODE }' wrapping.\n\
---: Do not parse any options beyond this delimiter. All text to the\n\
- right will be treated as source code.\n\
+Usage: compile code [OPTION]... [CODE]\n\
+\n\
+Options:\n\
+%OPTIONS%\n\
\n\
The source code may be specified as a simple one line expression, e.g.:\n\
\n\
compile code printf(\"Hello world\\n\");\n\
\n\
-Alternatively, you can type the source code interactively.\n\
-You can invoke this mode when no argument is given to the command\n\
-(i.e.,\"compile code\" is typed with nothing after it). An\n\
-interactive prompt will be shown allowing you to enter multiple\n\
-lines of source code. Type a line containing \"end\" to indicate\n\
-the end of the source code."),
- &compile_command_list);
+Alternatively, you can type a multiline expression by invoking\n\
+this command with no argument. GDB will then prompt for the\n\
+expression interactively; type a line containing \"end\" to\n\
+indicate the end of the expression."),
+ compile_opts);
+
+ c = add_cmd ("code", class_obscure, compile_code_command,
+ compile_code_help.c_str (),
+ &compile_command_list);
+ set_cmd_completer_handle_brkchars (c, compile_code_command_completer);
- c = add_cmd ("file", class_obscure, compile_file_command,
- _("\
+static const std::string compile_file_help
+ = gdb::option::build_help (_("\
Evaluate a file containing source code.\n\
\n\
-Usage: compile file [-r|-raw] [filename]\n\
--r|-raw: Suppress automatic 'void _gdb_expr () { CODE }' wrapping."),
+Usage: compile file [OPTION].. [FILENAME]\n\
+\n\
+Options:\n\
+%OPTIONS%"),
+ compile_opts);
+
+ c = add_cmd ("file", class_obscure, compile_file_command,
+ compile_file_help.c_str (),
&compile_command_list);
- set_cmd_completer (c, filename_completer);
+ set_cmd_completer_handle_brkchars (c, compile_file_command_completer);
+
+ const auto compile_print_opts = make_value_print_options_def_group (nullptr);
+
+ static const std::string compile_print_help
+ = gdb::option::build_help (_("\
+Evaluate EXPR by using the compiler and print result.\n\
+\n\
+Usage: compile print [[OPTION]... --] [/FMT] [EXPR]\n\
+\n\
+Options:\n\
+%OPTIONS%\n\
+\n\
+Note: because this command accepts arbitrary expressions, if you\n\
+specify any command option, you must use a double dash (\"--\")\n\
+to mark the end of option processing. E.g.: \"compile print -o -- myobj\".\n\
+\n\
+The expression may be specified on the same line as the command, e.g.:\n\
+\n\
+ compile print i\n\
+\n\
+Alternatively, you can type a multiline expression by invoking\n\
+this command with no argument. GDB will then prompt for the\n\
+expression interactively; type a line containing \"end\" to\n\
+indicate the end of the expression.\n\
+\n\
+EXPR may be preceded with /FMT, where FMT is a format letter\n\
+but no count or size letter (see \"x\" command)."),
+ compile_print_opts);
+
+ c = add_cmd ("print", class_obscure, compile_print_command,
+ compile_print_help.c_str (),
+ &compile_command_list);
+ set_cmd_completer_handle_brkchars (c, print_command_completer);
add_setshow_boolean_cmd ("compile", class_maintenance, &compile_debug, _("\
Set compile command debugging."), _("\
add_setshow_string_cmd ("compile-args", class_support,
&compile_args,
- _("Set compile command GCC command-line arguments"),
- _("Show compile command GCC command-line arguments"),
+ _("Set compile command GCC command-line arguments."),
+ _("Show compile command GCC command-line arguments."),
_("\
Use options like -I (include file directory) or ABI settings.\n\
String quoting is parsed like in shell, for example:\n\
/* Override flags possibly coming from DW_AT_producer. */
compile_args = xstrdup ("-O0 -gdwarf-4"
- /* We use -fPIC Otherwise GDB would need to reserve space large enough for
+ /* We use -fPIE Otherwise GDB would need to reserve space large enough for
any object file in the inferior in advance to get the final address when
to link the object file to and additionally the default system linker
script would need to be modified so that one can specify there the
- absolute target address. */
- " -fPIC"
- /* We don't want warnings. */
- " -w"
+ absolute target address.
+ -fPIC is not used at is would require from GDB to generate .got. */
+ " -fPIE"
+ /* We want warnings, except for some commonly happening for GDB commands. */
+ " -Wall "
+ " -Wno-unused-but-set-variable"
+ " -Wno-unused-variable"
/* Override CU's possible -fstack-protector-strong. */
" -fno-stack-protector"
);
set_compile_args (compile_args, 0, NULL);
+
+ add_setshow_optional_filename_cmd ("compile-gcc", class_support,
+ &compile_gcc,
+ _("Set compile command "
+ "GCC driver filename."),
+ _("Show compile command "
+ "GCC driver filename."),
+ _("\
+It should be absolute filename of the gcc executable.\n\
+If empty the default target triplet will be searched in $PATH."),
+ NULL, show_compile_gcc, &setlist,
+ &showlist);
+ compile_gcc = xstrdup ("");
}
projects / deliverable / binutils-gdb.git / blobdiff