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-rw-r--r--gdb/compile/compile-object-run.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/gdb/compile/compile-object-run.c b/gdb/compile/compile-object-run.c
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+++ b/gdb/compile/compile-object-run.c
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+/* Call module for 'compile' command.
+
+ Copyright (C) 2014 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ 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/>. */
+
+#include "defs.h"
+#include "compile-object-run.h"
+#include "value.h"
+#include "infcall.h"
+#include "objfiles.h"
+#include "compile-internal.h"
+#include "dummy-frame.h"
+
+/* Helper for do_module_cleanup. */
+
+struct do_module_cleanup
+{
+ /* Boolean to set true upon a call of do_module_cleanup.
+ The pointer may be NULL. */
+ int *executedp;
+
+ /* .c file OBJFILE was built from. It needs to be xfree-d. */
+ char *source_file;
+
+ /* objfile_name of our objfile. */
+ char objfile_name_string[1];
+};
+
+/* Cleanup everything after the inferior function dummy frame gets
+ discarded. */
+
+static dummy_frame_dtor_ftype do_module_cleanup;
+static void
+do_module_cleanup (void *arg)
+{
+ struct do_module_cleanup *data = arg;
+ struct objfile *objfile;
+
+ if (data->executedp != NULL)
+ *data->executedp = 1;
+
+ ALL_OBJFILES (objfile)
+ if ((objfile->flags & OBJF_USERLOADED) == 0
+ && (strcmp (objfile_name (objfile), data->objfile_name_string) == 0))
+ {
+ free_objfile (objfile);
+
+ /* It may be a bit too pervasive in this dummy_frame dtor callback. */
+ clear_symtab_users (0);
+
+ break;
+ }
+
+ /* Delete the .c file. */
+ unlink (data->source_file);
+ xfree (data->source_file);
+
+ /* Delete the .o file. */
+ unlink (data->objfile_name_string);
+ xfree (data);
+}
+
+/* Perform inferior call of MODULE. This function may throw an error.
+ This function may leave files referenced by MODULE on disk until
+ the inferior call dummy frame is discarded. This function may throw errors.
+ Thrown errors and left MODULE files are unrelated events. Caller must no
+ longer touch MODULE's memory after this function has been called. */
+
+void
+compile_object_run (struct compile_module *module)
+{
+ struct value *func_val;
+ struct frame_id dummy_id;
+ struct cleanup *cleanups;
+ struct do_module_cleanup *data;
+ volatile struct gdb_exception ex;
+ const char *objfile_name_s = objfile_name (module->objfile);
+ int dtor_found, executed = 0;
+ CORE_ADDR func_addr = module->func_addr;
+ CORE_ADDR regs_addr = module->regs_addr;
+
+ data = xmalloc (sizeof (*data) + strlen (objfile_name_s));
+ data->executedp = &executed;
+ data->source_file = xstrdup (module->source_file);
+ strcpy (data->objfile_name_string, objfile_name_s);
+
+ xfree (module->source_file);
+ xfree (module);
+
+ TRY_CATCH (ex, RETURN_MASK_ERROR)
+ {
+ func_val = value_from_pointer
+ (builtin_type (target_gdbarch ())->builtin_func_ptr,
+ func_addr);
+
+ if (regs_addr == 0)
+ call_function_by_hand_dummy (func_val, 0, NULL,
+ do_module_cleanup, data);
+ else
+ {
+ struct value *arg_val;
+
+ arg_val = value_from_pointer
+ (builtin_type (target_gdbarch ())->builtin_func_ptr,
+ regs_addr);
+ call_function_by_hand_dummy (func_val, 1, &arg_val,
+ do_module_cleanup, data);
+ }
+ }
+ dtor_found = find_dummy_frame_dtor (do_module_cleanup, data);
+ if (!executed)
+ data->executedp = NULL;
+ if (ex.reason >= 0)
+ gdb_assert (!dtor_found && executed);
+ else
+ {
+ /* In the case od DTOR_FOUND or in the case of EXECUTED nothing
+ needs to be done. */
+ gdb_assert (!(dtor_found && executed));
+ if (!dtor_found && !executed)
+ do_module_cleanup (data);
+ throw_exception (ex);
+ }
+}