diff options
| author | David Howells <dhowells@redhat.com> | 2018-01-02 15:12:01 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-01-09 23:21:02 +0000 |
| commit | 0500871f21b237b2bea2d9db405eadf78e5aab05 (patch) | |
| tree | 6004424368ea44f74d9d9d66fb565a59d3dba970 /arch/Kconfig | |
| parent | 138101932054268a235c6ac7cf474f6a88fcd885 (diff) | |
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 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 4 |
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 |