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f34652de0b
Currently, every internal_error call must be passed __FILE__/__LINE__
explicitly, like:
internal_error (__FILE__, __LINE__, "foo %d", var);
The need to pass in explicit __FILE__/__LINE__ is there probably
because the function predates widespread and portable variadic macros
availability. We can use variadic macros nowadays, and in fact, we
already use them in several places, including the related
gdb_assert_not_reached.
So this patch renames the internal_error function to something else,
and then reimplements internal_error as a variadic macro that expands
__FILE__/__LINE__ itself.
The result is that we now should call internal_error like so:
internal_error ("foo %d", var);
Likewise for internal_warning.
The patch adjusts all calls sites. 99% of the adjustments were done
with a perl/sed script.
The non-mechanical changes are in gdbsupport/errors.h,
gdbsupport/gdb_assert.h, and gdb/gdbarch.py.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
Change-Id: Ia6f372c11550ca876829e8fd85048f4502bdcf06
132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
/* Exception (throw catch) mechanism, for GDB, the GNU debugger.
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Copyright (C) 1986-2022 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 "exceptions.h"
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#include "breakpoint.h"
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#include "target.h"
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#include "inferior.h"
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#include "annotate.h"
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#include "ui-out.h"
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#include "serial.h"
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#include "gdbthread.h"
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#include "top.h"
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#include "gdbsupport/gdb_optional.h"
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static void
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print_flush (void)
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{
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struct ui *ui = current_ui;
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struct serial *gdb_stdout_serial;
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if (deprecated_error_begin_hook)
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deprecated_error_begin_hook ();
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gdb::optional<target_terminal::scoped_restore_terminal_state> term_state;
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if (target_supports_terminal_ours ())
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{
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term_state.emplace ();
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target_terminal::ours_for_output ();
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}
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/* We want all output to appear now, before we print the error. We
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have 2 levels of buffering we have to flush (it's possible that
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some of these should be changed to flush the lower-level ones
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too): */
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/* 1. The stdio buffer. */
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gdb_flush (gdb_stdout);
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gdb_flush (gdb_stderr);
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/* 2. The system-level buffer. */
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gdb_stdout_serial = serial_fdopen (fileno (ui->outstream));
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if (gdb_stdout_serial)
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{
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serial_drain_output (gdb_stdout_serial);
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serial_un_fdopen (gdb_stdout_serial);
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}
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annotate_error_begin ();
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}
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static void
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print_exception (struct ui_file *file, const struct gdb_exception &e)
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{
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/* KLUDGE: cagney/2005-01-13: Write the string out one line at a time
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as that way the MI's behavior is preserved. */
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const char *start;
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const char *end;
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for (start = e.what (); start != NULL; start = end)
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{
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end = strchr (start, '\n');
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if (end == NULL)
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gdb_puts (start, file);
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else
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{
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end++;
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file->write (start, end - start);
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}
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}
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gdb_printf (file, "\n");
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/* Now append the annotation. */
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switch (e.reason)
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{
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case RETURN_QUIT:
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annotate_quit ();
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break;
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case RETURN_ERROR:
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/* Assume that these are all errors. */
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annotate_error ();
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break;
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default:
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internal_error (_("Bad switch."));
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}
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}
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void
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exception_print (struct ui_file *file, const struct gdb_exception &e)
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{
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if (e.reason < 0 && e.message != NULL)
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{
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print_flush ();
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print_exception (file, e);
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}
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}
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void
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exception_fprintf (struct ui_file *file, const struct gdb_exception &e,
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const char *prefix, ...)
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{
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if (e.reason < 0 && e.message != NULL)
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{
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va_list args;
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print_flush ();
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/* Print the prefix. */
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va_start (args, prefix);
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gdb_vprintf (file, prefix, args);
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va_end (args);
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print_exception (file, e);
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}
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}
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