139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/* Call module for 'compile' command.
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Copyright (C) 2014-2015 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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#include "defs.h"
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#include "compile-object-run.h"
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#include "value.h"
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#include "infcall.h"
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#include "objfiles.h"
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#include "compile-internal.h"
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#include "dummy-frame.h"
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/* Helper for do_module_cleanup. */
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struct do_module_cleanup
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{
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/* Boolean to set true upon a call of do_module_cleanup.
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The pointer may be NULL. */
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int *executedp;
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/* .c file OBJFILE was built from. It needs to be xfree-d. */
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char *source_file;
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/* objfile_name of our objfile. */
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char objfile_name_string[1];
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};
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/* Cleanup everything after the inferior function dummy frame gets
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discarded. */
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static dummy_frame_dtor_ftype do_module_cleanup;
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static void
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do_module_cleanup (void *arg)
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{
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struct do_module_cleanup *data = arg;
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struct objfile *objfile;
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if (data->executedp != NULL)
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*data->executedp = 1;
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ALL_OBJFILES (objfile)
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if ((objfile->flags & OBJF_USERLOADED) == 0
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&& (strcmp (objfile_name (objfile), data->objfile_name_string) == 0))
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{
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free_objfile (objfile);
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/* It may be a bit too pervasive in this dummy_frame dtor callback. */
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clear_symtab_users (0);
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break;
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}
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/* Delete the .c file. */
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unlink (data->source_file);
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xfree (data->source_file);
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/* Delete the .o file. */
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unlink (data->objfile_name_string);
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xfree (data);
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}
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/* Perform inferior call of MODULE. This function may throw an error.
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This function may leave files referenced by MODULE on disk until
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the inferior call dummy frame is discarded. This function may throw errors.
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Thrown errors and left MODULE files are unrelated events. Caller must no
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longer touch MODULE's memory after this function has been called. */
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void
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compile_object_run (struct compile_module *module)
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{
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struct value *func_val;
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struct frame_id dummy_id;
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struct cleanup *cleanups;
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struct do_module_cleanup *data;
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volatile struct gdb_exception ex;
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const char *objfile_name_s = objfile_name (module->objfile);
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int dtor_found, executed = 0;
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CORE_ADDR func_addr = module->func_addr;
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CORE_ADDR regs_addr = module->regs_addr;
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data = xmalloc (sizeof (*data) + strlen (objfile_name_s));
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data->executedp = &executed;
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data->source_file = xstrdup (module->source_file);
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strcpy (data->objfile_name_string, objfile_name_s);
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xfree (module->source_file);
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xfree (module);
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TRY_CATCH (ex, RETURN_MASK_ERROR)
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{
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func_val = value_from_pointer
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(builtin_type (target_gdbarch ())->builtin_func_ptr,
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func_addr);
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if (regs_addr == 0)
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call_function_by_hand_dummy (func_val, 0, NULL,
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do_module_cleanup, data);
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else
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{
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struct value *arg_val;
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arg_val = value_from_pointer
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(builtin_type (target_gdbarch ())->builtin_func_ptr,
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regs_addr);
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call_function_by_hand_dummy (func_val, 1, &arg_val,
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do_module_cleanup, data);
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}
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}
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dtor_found = find_dummy_frame_dtor (do_module_cleanup, data);
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if (!executed)
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data->executedp = NULL;
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if (ex.reason >= 0)
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gdb_assert (!dtor_found && executed);
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else
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{
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/* In the case od DTOR_FOUND or in the case of EXECUTED nothing
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needs to be done. */
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gdb_assert (!(dtor_found && executed));
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if (!dtor_found && !executed)
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do_module_cleanup (data);
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throw_exception (ex);
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}
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}
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