From 5d0c9ec6dd7204e5895260d83a90c5a0d64143f7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:15:07 +0200 Subject: x86_64: prepare shared kernel/init_task.c Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86_64/Makefile | 2 +- arch/x86_64/kernel/Makefile | 2 +- arch/x86_64/kernel/init_task.c | 54 --------------------------------------- arch/x86_64/kernel/init_task_64.c | 54 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 56 insertions(+), 56 deletions(-) delete mode 100644 arch/x86_64/kernel/init_task.c create mode 100644 arch/x86_64/kernel/init_task_64.c (limited to 'arch/x86_64') diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index c76351c..97de9cb 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -71,7 +71,7 @@ CFLAGS += $(cflags-y) CFLAGS_KERNEL += $(cflags-kernel-y) AFLAGS += -m64 -head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o +head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task_64.o libs-y += arch/x86_64/lib/ core-y += arch/x86_64/kernel/ \ diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index ddc3154..ce02b64 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -2,7 +2,7 @@ # Makefile for the linux kernel. # -extra-y := head.o head64.o init_task.o vmlinux.lds +extra-y := head.o head64.o init_task_64.o vmlinux.lds EXTRA_AFLAGS := -traditional obj-y := process.o signal_64.o entry.o traps_64.o irq_64.o \ ptrace_64.o time_64.o ioport_64.o ldt_64.o setup_64.o i8259_64.o sys_x86_64.o \ diff --git a/arch/x86_64/kernel/init_task.c b/arch/x86_64/kernel/init_task.c deleted file mode 100644 index 4ff33d4..0000000 --- a/arch/x86_64/kernel/init_task.c +++ /dev/null @@ -1,54 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -static struct fs_struct init_fs = INIT_FS; -static struct files_struct init_files = INIT_FILES; -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -struct mm_struct init_mm = INIT_MM(init_mm); - -EXPORT_SYMBOL(init_mm); - -/* - * Initial task structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_task); -/* - * per-CPU TSS segments. Threads are completely 'soft' on Linux, - * no more per-task TSS's. The TSS size is kept cacheline-aligned - * so they are allowed to end up in the .data.cacheline_aligned - * section. Since TSS's are completely CPU-local, we want them - * on exact cacheline boundaries, to eliminate cacheline ping-pong. - */ -DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; - -/* Copies of the original ist values from the tss are only accessed during - * debugging, no special alignment required. - */ -DEFINE_PER_CPU(struct orig_ist, orig_ist); - -#define ALIGN_TO_4K __attribute__((section(".data.init_task"))) diff --git a/arch/x86_64/kernel/init_task_64.c b/arch/x86_64/kernel/init_task_64.c new file mode 100644 index 0000000..4ff33d4 --- /dev/null +++ b/arch/x86_64/kernel/init_task_64.c @@ -0,0 +1,54 @@ +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +static struct fs_struct init_fs = INIT_FS; +static struct files_struct init_files = INIT_FILES; +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); +struct mm_struct init_mm = INIT_MM(init_mm); + +EXPORT_SYMBOL(init_mm); + +/* + * Initial task structure. + * + * We need to make sure that this is 8192-byte aligned due to the + * way process stacks are handled. This is done by having a special + * "init_task" linker map entry.. + */ +union thread_union init_thread_union + __attribute__((__section__(".data.init_task"))) = + { INIT_THREAD_INFO(init_task) }; + +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +struct task_struct init_task = INIT_TASK(init_task); + +EXPORT_SYMBOL(init_task); +/* + * per-CPU TSS segments. Threads are completely 'soft' on Linux, + * no more per-task TSS's. The TSS size is kept cacheline-aligned + * so they are allowed to end up in the .data.cacheline_aligned + * section. Since TSS's are completely CPU-local, we want them + * on exact cacheline boundaries, to eliminate cacheline ping-pong. + */ +DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; + +/* Copies of the original ist values from the tss are only accessed during + * debugging, no special alignment required. + */ +DEFINE_PER_CPU(struct orig_ist, orig_ist); + +#define ALIGN_TO_4K __attribute__((section(".data.init_task"))) -- cgit v1.1