Alexandru Gagniuc (mr.nuke.me@gmail.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/11784
-gerrit
commit 54a78912bf2da82817d3ea6230ba37eced19bd05 Author: Alexandru Gagniuc mr.nuke.me@gmail.com Date: Fri Oct 2 12:42:26 2015 -0700
arch/x86: Rename bootblock.S to bootblock_romcc.S
bootblock.S was used strictly for setting up the system so that the assembly generated by ROMCC could be executed. Since the infrastructure now exists to run a bootblock wihtout ROMCC, rename this file accordingly. this is done to prevent any future confusion.
Change-Id: Icbf5804b66b9517f9ceb352bed86978dcf92228f Signed-off-by: Alexandru Gagniuc mr.nuke.me@gmail.com --- src/arch/x86/Makefile.inc | 10 ++++---- src/arch/x86/bootblock.S | 40 ------------------------------- src/arch/x86/bootblock_romcc.S | 53 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 58 insertions(+), 45 deletions(-)
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 82b8ae3..2942cae 100644 --- a/src/arch/x86/Makefile.inc +++ b/src/arch/x86/Makefile.inc @@ -107,9 +107,6 @@ bootblock-y += memcpy.c bootblock-y += memset.c bootblock-y += mmap_boot.c
-# Add the assembly file that pulls in the rest of the dependencies in -# the right order. Make sure the auto generated bootblock.inc is a proper -# dependency. Make the same true for the linker sript. bootblock-y += id.S $(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h
@@ -132,9 +129,12 @@ else LDFLAGS_bootblock += -m elf_x86_64 --oformat elf64-x86-64 endif
-bootblock-y += bootblock.S +# Add the assembly file that pulls in the rest of the dependencies in +# the right order. Make sure the auto generated bootblock.inc is a proper +# dependency. Make the same true for the linker sript. +bootblock-y += bootblock_romcc.S bootblock-y += walkcbfs.S -$(call src-to-obj,bootblock,$(dir)/bootblock.S): $(objgenerated)/bootblock.inc +$(call src-to-obj,bootblock,$(dir)/bootblock_romcc.S): $(objgenerated)/bootblock.inc
bootblock-y += bootblock.ld $(call src-to-obj,bootblock,$(dir)/bootblock.ld): $(objgenerated)/bootblock.ld diff --git a/src/arch/x86/bootblock.S b/src/arch/x86/bootblock.S deleted file mode 100644 index 27a23eb..0000000 --- a/src/arch/x86/bootblock.S +++ /dev/null @@ -1,40 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2015 Google Inc. - * - * 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. - */ - -/* This file assembles the bootblock program by the order of the includes. Thus, - * it's extremely important that one pays very careful attention to the order - * of the includes. */ - -#include <arch/x86/prologue.inc> -#include <cpu/x86/16bit/entry16.inc> -#include <cpu/x86/16bit/reset16.inc> -#include <cpu/x86/32bit/entry32.inc> - -#ifdef CONFIG_CHIPSET_BOOTBLOCK_INCLUDE -#include CONFIG_CHIPSET_BOOTBLOCK_INCLUDE -#endif - -#if IS_ENABLED(CONFIG_SSE) -#include <cpu/x86/sse_enable.inc> -#endif - -/* - * This bootblock.inc file is generated by ROMCC. The above program flow - * falls through to this point. ROMCC assumes the last function it parsed - * is the main function and it places its instructions at the beginning of - * the generated file. Moreover, any library/common code needed in bootblock - * needs to come after bootblock.inc. - */ -#include <generated/bootblock.inc> diff --git a/src/arch/x86/bootblock_romcc.S b/src/arch/x86/bootblock_romcc.S new file mode 100644 index 0000000..6c1723a --- /dev/null +++ b/src/arch/x86/bootblock_romcc.S @@ -0,0 +1,53 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 Google Inc. + * + * 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. + */ + +/* + * This is the original bootblock used by coreboot on x86 systems. It contains + * a monolithic code flow, assembled from the following stages: + * - reset16.inc: the reset vector + * - entry16.inc: protected mode setup + * - entry32.inc: segment descriptor setup + * - CONFIG_CHIPSET_BOOTBLOCK_INCLUDE: chipset-specific initialization + * - generated/bootblock.inc: ROMCC part of the bootblock + * + * This is used on platforms which do not select C_ENVIRONMENT_BOOTBLOCK, and it + * tries to do the absolute minimum before walking CBFS and jumping to romstage. + * + * This file assembles the bootblock program by the order of the includes. Thus, + * it's extremely important that one pays very careful attention to the order + * of the includes. + */ + +#include <arch/x86/prologue.inc> +#include <cpu/x86/16bit/entry16.inc> +#include <cpu/x86/16bit/reset16.inc> +#include <cpu/x86/32bit/entry32.inc> + +#ifdef CONFIG_CHIPSET_BOOTBLOCK_INCLUDE +#include CONFIG_CHIPSET_BOOTBLOCK_INCLUDE +#endif + +#if IS_ENABLED(CONFIG_SSE) +#include <cpu/x86/sse_enable.inc> +#endif + +/* + * This bootblock.inc file is generated by ROMCC. The above program flow + * falls through to this point. ROMCC assumes the last function it parsed + * is the main function and it places its instructions at the beginning of + * the generated file. Moreover, any library/common code needed in bootblock + * needs to come after bootblock.inc. + */ +#include <generated/bootblock.inc>
-
Alexandru Gagniuc