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| 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/cris | |
| parent | 138101932054268a235c6ac7cf474f6a88fcd885 (diff) | |
| download | op-kernel-dev-0500871f21b237b2bea2d9db405eadf78e5aab05.zip op-kernel-dev-0500871f21b237b2bea2d9db405eadf78e5aab05.tar.gz | |
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/cris')
| -rw-r--r-- | arch/cris/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/cris/include/asm/thread_info.h | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h index b509077..ee4d8b0 100644 --- a/arch/cris/include/asm/processor.h +++ b/arch/cris/include/asm/processor.h @@ -52,8 +52,6 @@ static inline void release_thread(struct task_struct *dead_task) /* Nothing needs to be done. */ } -#define init_stack (init_thread_union.stack) - #define cpu_relax() barrier() void default_idle(void); diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h index 108f770..996fef3 100644 --- a/arch/cris/include/asm/thread_info.h +++ b/arch/cris/include/asm/thread_info.h @@ -63,8 +63,6 @@ struct thread_info { .addr_limit = KERNEL_DS, \ } -#define init_thread_info (init_thread_union.thread_info) - #endif /* !__ASSEMBLY__ */ /* |
