>From 7143f15993be4709e59c43fb65b086a8402e589b Mon Sep 17 00:00:00 2001 From: [EMAIL PROTECTED] (Eric W. Biederman) Date: Sat, 23 Feb 2008 09:58:20 +0100 Subject: [PATCH] x86: introduce kernel/head32.c
Copy x86_64 and add a head32.c so we can start moving early architecture initialization out of assembly. Signed-off-by: Eric W. Biederman <[EMAIL PROTECTED]> Signed-off-by: Sam Ravnborg <[EMAIL PROTECTED]> Cc: Thomas Gleixner <[EMAIL PROTECTED]> Cc: Ingo Molnar <[EMAIL PROTECTED]> Cc: H. Peter Anvin <[EMAIL PROTECTED]> --- Based on original submission from Eric: http://lkml.org/lkml/2007/4/30/337 I just updated it to x86 Only build tested on 64bit x86 but looks trivially correct. Sam arch/x86/Makefile | 6 +++--- arch/x86/kernel/Makefile | 3 +-- arch/x86/kernel/head32.c | 14 ++++++++++++++ arch/x86/kernel/head_32.S | 2 +- 4 files changed, 19 insertions(+), 6 deletions(-) create mode 100644 arch/x86/kernel/head32.c diff --git a/arch/x86/Makefile b/arch/x86/Makefile index f1e739a..03131ce 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -159,9 +159,9 @@ KBUILD_AFLAGS += $(mflags-y) ### # Kernel objects -head-y := arch/x86/kernel/head_$(BITS).o -head-$(CONFIG_X86_64) += arch/x86/kernel/head64.o -head-y += arch/x86/kernel/init_task.o +head-y := arch/x86/kernel/head_$(BITS).o +head-y += arch/x86/kernel/head$(BITS).o +head-y += arch/x86/kernel/init_task.o libs-y += arch/x86/lib/ diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 4eb5ce8..8f2371d 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -2,8 +2,7 @@ # Makefile for the linux kernel. # -extra-y := head_$(BITS).o init_task.o vmlinux.lds -extra-$(CONFIG_X86_64) += head64.o +extra-y := head_$(BITS).o head$(BITS).o init_task.o vmlinux.lds CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE) diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c new file mode 100644 index 0000000..3db0590 --- /dev/null +++ b/arch/x86/kernel/head32.c @@ -0,0 +1,14 @@ +/* + * linux/arch/i386/kernel/head32.c -- prepare to run common code + * + * Copyright (C) 2000 Andrea Arcangeli <[EMAIL PROTECTED]> SuSE + * Copyright (C) 2007 Eric Biederman <[EMAIL PROTECTED]> + */ + +#include <linux/init.h> +#include <linux/start_kernel.h> + +void __init i386_start_kernel(void) +{ + start_kernel(); +} diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 25eb985..d4247c0 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -450,7 +450,7 @@ is386: movl $2,%ecx # set MP jmp initialize_secondary # all other CPUs call initialize_secondary 1: #endif /* CONFIG_SMP */ - jmp start_kernel + jmp i386_start_kernel /* * We depend on ET to be correct. This checks for 287/387. -- 1.5.4.rc3.14.g44397 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
