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build rules: Identify build stage with simple variables

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Provide simple environment variables telling which stage of boot is
being built. Also move this to arch-agnostic location.

Change-Id: I8cbb5cf91f53e01c06e7d672b5be3f5c235f911d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5410
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Kyösti Mälkki
2014-02-26 15:19:04 +02:00
parent efb0b51e62
commit e8792be223
8 changed files with 39 additions and 44 deletions
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63
src/include/rules.h Normal file
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/*
* This file is part of the coreboot project.
*
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _RULES_H
#define _RULES_H
/* Useful helpers to tell whether the code is executing in bootblock,
* romstage, ramstage or SMM.
*/
#if defined(__BOOT_BLOCK__)
#define ENV_BOOTBLOCK 1
#define ENV_ROMSTAGE 0
#define ENV_RAMSTAGE 0
#define ENV_SMM 0
#elif defined(__PRE_RAM__)
#define ENV_BOOTBLOCK 0
#define ENV_ROMSTAGE 1
#define ENV_RAMSTAGE 0
#define ENV_SMM 0
#elif defined(__SMM__)
#define ENV_BOOTBLOCK 0
#define ENV_ROMSTAGE 0
#define ENV_RAMSTAGE 0
#define ENV_SMM 1
#else
#define ENV_BOOTBLOCK 0
#define ENV_ROMSTAGE 0
#define ENV_RAMSTAGE 1
#define ENV_SMM 0
#endif
/* For romstage and ramstage always build with simple device model, ie.
* PCI, PNP and CPU functions operate without use of devicetree.
*
* For ramstage individual source file may define __SIMPLE_DEVICE__
* before including any header files to force that particular source
* be built with simple device model.
*/
#if defined(__PRE_RAM__) || defined(__SMM__)
#define __SIMPLE_DEVICE__
#endif
#endif /* _RULES_H */