From 6c6e4333c4ef8a86e70e14fcff57a5747339b165 Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Tue, 11 Nov 2008 19:51:14 +0000 Subject: [PATCH] Add sysinfo_have_multiboot function Add a new infrastructure for returning system information to payloads. First up - a pointer to the multiboot table. Signed-off-by: Jordan Crouse Acked-by: Peter Stuge git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3743 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- payloads/libpayload/libc/Makefile.inc | 2 +- payloads/libpayload/libc/sysinfo.c | 39 +++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+), 1 deletion(-) create mode 100644 payloads/libpayload/libc/sysinfo.c (limited to 'payloads/libpayload/libc') diff --git a/payloads/libpayload/libc/Makefile.inc b/payloads/libpayload/libc/Makefile.inc index a4cd1bce6f..0353bb67e0 100644 --- a/payloads/libpayload/libc/Makefile.inc +++ b/payloads/libpayload/libc/Makefile.inc @@ -31,4 +31,4 @@ TARGETS-$(CONFIG_LIBC) += libc/malloc.o libc/printf.o libc/console.o libc/string.o TARGETS-$(CONFIG_LIBC) += libc/memory.o libc/ctype.o libc/ipchecksum.o libc/lib.o TARGETS-$(CONFIG_LIBC) += libc/rand.o libc/time.o libc/lar.o libc/exec.o -TARGETS-$(CONFIG_LIBC) += libc/readline.o +TARGETS-$(CONFIG_LIBC) += libc/readline.o libc/sysinfo.o diff --git a/payloads/libpayload/libc/sysinfo.c b/payloads/libpayload/libc/sysinfo.c new file mode 100644 index 0000000000..73a9ab5539 --- /dev/null +++ b/payloads/libpayload/libc/sysinfo.c @@ -0,0 +1,39 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Jordan Crouse + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#include + +extern struct sysinfo_t lib_sysinfo; + +int sysinfo_have_multiboot(unsigned long *addr) +{ + *addr = (unsigned long) lib_sysinfo.mbtable; + return (lib_sysinfo.mbtable == 0) ? 0 : 1; +} -- cgit v1.2.3