bu_payload.c

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/*
 * 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 <pios_stringify.h>     /* __stringify */

/* This is needed to make ccache aware the binary has changed. Without it,
   ccache will always return old cached files. */
static const char __attribute__((unused)) dummy[] = __stringify(BU_HASH);

asm(
        ".section .rodata\n"

        ".global _bu_payload_start\n"
        "_bu_payload_start:\n"
        ".incbin \"" __stringify(BU_PAYLOAD_FILE) "\"\n"
        ".global _bu_payload_end\n"
        "_bu_payload_end:\n"

        ".global _bu_payload_size\n"
        "_bu_payload_size:\n"
        ".word _bu_payload_end - _bu_payload_start\n"
        ".previous\n"
);