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authorDavid Howells <dhowells@redhat.com>2018-01-02 15:12:01 +0000
committerDavid Howells <dhowells@redhat.com>2018-01-09 23:21:02 +0000
commit0500871f21b237b2bea2d9db405eadf78e5aab05 (patch)
tree6004424368ea44f74d9d9d66fb565a59d3dba970 /arch/Kconfig
parentopenrisc: Make THREAD_SIZE available to vmlinux.lds (diff)
downloadlinux-dev-0500871f21b237b2bea2d9db405eadf78e5aab05.tar.xz
linux-dev-0500871f21b237b2bea2d9db405eadf78e5aab05.zip
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 <dhowells@redhat.com> Tested-by: Tony Luck <tony.luck@intel.com> Tested-by: Will Deacon <will.deacon@arm.com> (arm64) Tested-by: Palmer Dabbelt <palmer@sifive.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to '')
-rw-r--r--arch/Kconfig4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 400b9e1b2f27..a26d6f8ab967 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -234,8 +234,8 @@ config ARCH_HAS_FORTIFY_SOURCE
config ARCH_HAS_SET_MEMORY
bool
-# Select if arch init_task initializer is different to init/init_task.c
-config ARCH_INIT_TASK
+# Select if arch init_task must go in the __init_task_data section
+config ARCH_TASK_STRUCT_ON_STACK
bool
# Select if arch has its private alloc_task_struct() function