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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-02-26 15:19:04 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-04-18 16:40:32 +0200 |
| commit | e8792be223f5f0c5c6bafffa4056793f3c3bfab7 (patch) | |
| tree | 51abcf41db0eff119eb6f694c8bef0f6de51bd91 /src/include/rules.h | |
| parent | efb0b51e62667ade4d96f2a15eb6ed60bb29a9fe (diff) | |
| download | coreboot-e8792be223f5f0c5c6bafffa4056793f3c3bfab7.tar.xz | |
build rules: Identify build stage with simple variables
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)
Diffstat (limited to 'src/include/rules.h')
| -rw-r--r-- | src/include/rules.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/include/rules.h b/src/include/rules.h new file mode 100644 index 0000000000..22111e8dfb --- /dev/null +++ b/src/include/rules.h @@ -0,0 +1,63 @@ +/* + * 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 */ |