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| author | Helge Deller <deller@gmx.de> | 2021-10-15 10:41:03 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2021-11-01 07:35:59 +0100 |
| commit | 2214c0e77259b420402e279e9ab4277ef320d371 (patch) | |
| tree | 2533ae4177d0ac79d41446b273e90243d30bd3e5 /arch/parisc/kernel/asm-offsets.c | |
| parent | bc294838cc3443a2fbec58f8936ad4bd0a0b3055 (diff) | |
| download | linux-2214c0e77259b420402e279e9ab4277ef320d371.tar.gz | |
parisc: Move thread_info into task struct
This implements the CONFIG_THREAD_INFO_IN_TASK option.
With this change:
- before thread_info was part of the stack and located at the beginning of the stack
- now the thread_info struct is moved and located inside the task_struct structure
- the stack is allocated and handled like the major other platforms
- drop the cpu field of thread_info and use instead the one in task_struct
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Diffstat (limited to 'arch/parisc/kernel/asm-offsets.c')
| -rw-r--r-- | arch/parisc/kernel/asm-offsets.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c index 276c67ea7fd2..5d84b0f78c2a 100644 --- a/arch/parisc/kernel/asm-offsets.c +++ b/arch/parisc/kernel/asm-offsets.c @@ -14,6 +14,8 @@ * Copyright (C) 2003 James Bottomley <jejb at parisc-linux.org> */ +#define GENERATING_ASM_OFFSETS /* asm/smp.h */ + #include <linux/types.h> #include <linux/sched.h> #include <linux/thread_info.h> @@ -35,13 +37,16 @@ int main(void) { - DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack)); - DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags)); + DEFINE(TASK_TI_FLAGS, offsetof(struct task_struct, thread_info.flags)); DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, pending)); DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace)); DEFINE(TASK_MM, offsetof(struct task_struct, mm)); DEFINE(TASK_PERSONALITY, offsetof(struct task_struct, personality)); DEFINE(TASK_PID, offsetof(struct task_struct, pid)); + DEFINE(TASK_STACK, offsetof(struct task_struct, stack)); +#ifdef CONFIG_SMP + DEFINE(TASK_CPU, offsetof(struct task_struct, cpu)); +#endif BLANK(); DEFINE(TASK_REGS, offsetof(struct task_struct, thread.regs)); DEFINE(TASK_PT_PSW, offsetof(struct task_struct, thread.regs.gr[ 0])); @@ -129,10 +134,6 @@ int main(void) DEFINE(TASK_PT_ISR, offsetof(struct task_struct, thread.regs.isr)); DEFINE(TASK_PT_IOR, offsetof(struct task_struct, thread.regs.ior)); BLANK(); - DEFINE(TASK_SZ, sizeof(struct task_struct)); - /* TASK_SZ_ALGN includes space for a stack frame. */ - DEFINE(TASK_SZ_ALGN, align_frame(sizeof(struct task_struct), FRAME_ALIGN)); - BLANK(); DEFINE(PT_PSW, offsetof(struct pt_regs, gr[ 0])); DEFINE(PT_GR1, offsetof(struct pt_regs, gr[ 1])); DEFINE(PT_GR2, offsetof(struct pt_regs, gr[ 2])); @@ -217,17 +218,11 @@ int main(void) DEFINE(PT_IIR, offsetof(struct pt_regs, iir)); DEFINE(PT_ISR, offsetof(struct pt_regs, isr)); DEFINE(PT_IOR, offsetof(struct pt_regs, ior)); - DEFINE(PT_SIZE, sizeof(struct pt_regs)); /* PT_SZ_ALGN includes space for a stack frame. */ DEFINE(PT_SZ_ALGN, align_frame(sizeof(struct pt_regs), FRAME_ALIGN)); BLANK(); - DEFINE(TI_TASK, offsetof(struct thread_info, task)); DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); - DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); - DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count)); - DEFINE(THREAD_SZ, sizeof(struct thread_info)); - /* THREAD_SZ_ALGN includes space for a stack frame. */ - DEFINE(THREAD_SZ_ALGN, align_frame(sizeof(struct thread_info), FRAME_ALIGN)); + DEFINE(TI_PRE_COUNT, offsetof(struct task_struct, thread_info.preempt_count)); BLANK(); DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base)); DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride)); |