修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/arm64/include/asm/scs.h
..
..
@@ -2,34 +2,27 @@
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 #ifndef _ASM_SCS_H
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 #define _ASM_SCS_H
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-#ifndef __ASSEMBLY__
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+#ifdef __ASSEMBLY__
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-#include <linux/scs.h>
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+#include <asm/asm-offsets.h>
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 #ifdef CONFIG_SHADOW_CALL_STACK
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+	scs_sp	.req	x18
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-extern void scs_init_irq(void);
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+	.macro scs_load_current
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+	get_current_task scs_sp
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+	ldr	scs_sp, [scs_sp, #TSK_TI_SCS_SP]
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+	.endm
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-static __always_inline void scs_save(struct task_struct *tsk)
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-{
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-	void *s;
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+	.macro scs_save tsk, tmp
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+	str	scs_sp, [\tsk, #TSK_TI_SCS_SP]
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+	.endm
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+#else
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+	.macro scs_load_current
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+	.endm
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-	asm volatile("mov %0, x18" : "=r" (s));
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-	task_set_scs(tsk, s);
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-}
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-
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-static inline void scs_overflow_check(struct task_struct *tsk)
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-{
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-	if (unlikely(scs_corrupted(tsk)))
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-		panic("corrupted shadow stack detected inside scheduler\n");
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-}
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-
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-#else /* CONFIG_SHADOW_CALL_STACK */
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-
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-static inline void scs_init_irq(void) {}
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-static inline void scs_save(struct task_struct *tsk) {}
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-static inline void scs_overflow_check(struct task_struct *tsk) {}
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-
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+	.macro scs_save tsk, tmp
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+	.endm
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 #endif /* CONFIG_SHADOW_CALL_STACK */
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 #endif /* __ASSEMBLY __ */