From 0500871f21b237b2bea2d9db405eadf78e5aab05 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 2 Jan 2018 15:12:01 +0000 Subject: Construct init thread stack in the linker script rather than by union Construct the init thread stack in the linker script rather than doing it by means of a union so that ia64's init_task.c can be got rid of. The following symbols are then made available from INIT_TASK_DATA() linker script macro: init_thread_union init_stack INIT_TASK_DATA() also expands the region to THREAD_SIZE to accommodate the size of the init stack. init_thread_union is given its own section so that it can be placed into the stack space in the right order. I'm assuming that the ia64 ordering is correct and that the task_struct is first and the thread_info second. Signed-off-by: David Howells Tested-by: Tony Luck Tested-by: Will Deacon (arm64) Tested-by: Palmer Dabbelt Acked-by: Thomas Gleixner --- init/Makefile | 2 -- 1 file changed, 2 deletions(-) (limited to 'init/Makefile') diff --git a/init/Makefile b/init/Makefile index 1dbb23787290..a3e5ce2bcf08 100644 --- a/init/Makefile +++ b/init/Makefile @@ -13,9 +13,7 @@ obj-$(CONFIG_BLK_DEV_INITRD) += initramfs.o endif obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o -ifneq ($(CONFIG_ARCH_INIT_TASK),y) obj-y += init_task.o -endif mounts-y := do_mounts.o mounts-$(CONFIG_BLK_DEV_RAM) += do_mounts_rd.o -- cgit v1.2.3