a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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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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*/
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#include <gdb.h>
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#include <libpayload.h>
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struct gdb_state gdb_state;
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static u8 reply_buf[2048];
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static u8 command_buf[2048];
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static struct gdb_message command = {
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.buf = command_buf,
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.used = 0,
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.size = sizeof(command_buf),
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};
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static struct gdb_message reply = {
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.buf = reply_buf,
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.used = 0,
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.size = sizeof(reply_buf),
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};
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void gdb_command_loop(u8 signal)
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{
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if (gdb_state.resumed) {
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/* We were just running. Send a stop reply. */
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reply.used = 0;
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gdb_message_add_string(&reply, "S");
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gdb_message_encode_bytes(&reply, &signal, 1);
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gdb_send_reply(&reply);
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}
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gdb_state.signal = signal;
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gdb_state.resumed = 0;
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gdb_state.connected = 1;
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while (1) {
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int i;
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gdb_get_command(&command);
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reply.used = 0;
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for (i = 0; i < gdb_command_count; i++) {
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int clen = strlen(gdb_commands[i].str);
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if (!strncmp(gdb_commands[i].str, (char *)command.buf,
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MIN(clen, command.used))) {
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gdb_commands[i].handler(&command, clen, &reply);
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break;
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}
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}
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/* If we're resuming, we won't send a reply until we stop. */
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if (gdb_state.resumed)
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return;
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gdb_send_reply(&reply);
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}
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}
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static void gdb_output_write(const void *buffer, size_t count)
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{
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if (!gdb_state.resumed) {
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/* Must be a die_if() in GDB (or a bug), so bail out and die. */
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gdb_exit(-1);
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video_console_init();
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puts("GDB died, redirecting its last words to the screen:\n");
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console_write(buffer, count);
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} else {
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reply.used = 0;
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reply.buf[reply.used++] = 'O';
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gdb_message_encode_bytes(&reply, buffer, count);
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gdb_send_reply(&reply);
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}
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}
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static struct console_output_driver gdb_output_driver = {
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.write = &gdb_output_write
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};
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static void gdb_init(void)
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{
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printf("Ready for GDB connection.\n");
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gdb_transport_init();
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gdb_arch_init();
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console_add_output_driver(&gdb_output_driver);
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}
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void gdb_enter(void)
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{
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if (!gdb_state.connected)
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gdb_init();
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gdb_arch_enter();
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}
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void gdb_exit(s8 exit_status)
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{
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if (!gdb_state.connected)
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return;
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reply.used = 0;
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gdb_message_add_string(&reply, "W");
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gdb_message_encode_bytes(&reply, &exit_status, 1);
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gdb_send_reply(&reply);
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console_remove_output_driver(&gdb_output_write);
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gdb_transport_teardown();
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gdb_state.connected = 0;
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printf("Detached from GDB connection.\n");
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}
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