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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/m68k | |
| parent | 138101932054268a235c6ac7cf474f6a88fcd885 (diff) | |
| download | linux-stable-0500871f21b237b2bea2d9db405eadf78e5aab05.tar.gz linux-stable-0500871f21b237b2bea2d9db405eadf78e5aab05.tar.bz2 linux-stable-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 'arch/m68k')
| -rw-r--r-- | arch/m68k/include/asm/thread_info.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index 928035591f2e..015f1ca38305 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -41,8 +41,6 @@ struct thread_info { .preempt_count = INIT_PREEMPT_COUNT, \ } -#define init_stack (init_thread_union.stack) - #ifndef __ASSEMBLY__ /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) @@ -58,8 +56,6 @@ static inline struct thread_info *current_thread_info(void) } #endif -#define init_thread_info (init_thread_union.thread_info) - /* entry.S relies on these definitions! * bits 0-7 are tested at every exception exit * bits 8-15 are also tested at syscall exit |