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libpayload: arm: Add EABI compatible utility functions. 

Some EABI conformant toolchains like GCC need additional functions like raise.
To prevent payloads adding arch-specific implementations everywhere, we should
provide the default version in libpayload.

BUG=none
TEST=emerge-nyan libpayload # pass
BRANCH=none

Original-Change-Id: Id1e3c29590aa5881aefd944a7551949ce9a47b8f
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/199686
(cherry picked from commit 395810c4b744dbb720050f79a2c1a30e81464554)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I2e1d8c8cb519f8e788c22d081132d23b49b8f822
Reviewed-on: http://review.coreboot.org/7906
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Hung-Te Lin 2014-05-14 12:43:57 +08:00 committed by Marc Jones
parent e30e4e7efa
commit d6b001e36d
2 changed files with 57 additions and 0 deletions
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1
payloads/libpayload/arch/arm/Makefile.inc
View File

@ -31,6 +31,7 @@ CFLAGS += -mthumb -march=armv7-a
arm_asm_flags = -Wa,-mthumb -Wa,-mimplicit-it=always -Wa,-mno-warn-deprecated arm_asm_flags = -Wa,-mthumb -Wa,-mimplicit-it=always -Wa,-mno-warn-deprecated
head.o-y += head.S head.o-y += head.S
libc-y += eabi_compat.c
libc-y += main.c sysinfo.c libc-y += main.c sysinfo.c
libc-y += timer.c coreboot.c util.S libc-y += timer.c coreboot.c util.S
libc-y += virtual.c libc-y += virtual.c

56
payloads/libpayload/arch/arm/eabi_compat.c Normal file
View File

@ -0,0 +1,56 @@
/*
* This file is part of the libpayload project.
*
* Copyright (C) 2014 Google, Inc.
*
* 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.
*
* Function(s) needed for some EABI conformant tool chains (ex GCC).
*/
#include <die.h>
int raise(int signum) __attribute__((weak));
int raise(int signum)
{
die("signal %d raised.\n", signum);
return -1;
}
/* ARM-defined Personality Routines, currently 3 in ARM EHABI. */
void __aeabi_unwind_cpp_pr0(void) __attribute__((weak));
void __aeabi_unwind_cpp_pr0(void)
{
}
void __aeabi_unwind_cpp_pr1(void) __attribute__((weak));
void __aeabi_unwind_cpp_pr1(void)
{
}
void __aeabi_unwind_cpp_pr2(void) __attribute__((weak));
void __aeabi_unwind_cpp_pr2(void)
{
}