95c331b94b
The i386.c file uses standard 3f8 UART for some simple diagnostic prints, and the libpayload console otherwise. This payload was used to debug Linux as a rampayload and was very helpful for that work. Change-Id: I1cce5528780cd825fd91a88137fa70abd9f218e7 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://review.coreboot.org/28600 Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/*
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* This file is part of the coreinfo project.
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*
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* Copyright (C) 2018 Google Inc.
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*
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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; version 2 of the License.
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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 <libpayload-config.h>
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#include <libpayload.h>
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#include "linuxcheck.h"
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extern struct console_output_driver *console_out;
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extern struct sysinfo_t lib_sysinfo;
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int main(void)
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{
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int ret, i;
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buts("Greetings from linuxcheck, via hard-coded calls to serial functions.\n");
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if (console_out == NULL)
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buts("Bad news: console_out is NULL\n");
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if (lib_sysinfo.serial == NULL)
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buts("Bad news: lib_sysinfo.serial is NULL. Very little will work well.\n");
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ret = lib_get_sysinfo();
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if (ret) {
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buts("lib_get_sysinfo() is non-zero");
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hex32(ret);
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buts("\n");
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}
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buts("The next line should be puts works\n");
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puts("puts works\n");
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buts("If you did not see puts works, then you have a console issues\n");
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buts("The next line should be 'printf works'\n");
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printf("printf works\n");
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buts(" ... if you did not see printf works, then you have a printf issue\n");
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printf("Number of memory ranges: %d\n", lib_sysinfo.n_memranges);
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for (i = 0; i < lib_sysinfo.n_memranges; i++) {
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printf("%d: base 0x%08llx size 0x%08llx type 0x%x\n", i, lib_sysinfo.memrange[i].base, lib_sysinfo.memrange[i].size, lib_sysinfo.memrange[i].type);
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}
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buts("Now we will halt. Bye");
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halt();
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return 0;
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}
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