change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/samples/ftrace/ftrace-direct-too.c
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@@ -4,14 +4,14 @@
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 #include <linux/mm.h> /* for handle_mm_fault() */
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 #include <linux/ftrace.h>
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-extern void my_direct_func(struct vm_area_struct *vma,
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-			   unsigned long address, unsigned int flags);
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+extern void my_direct_func(struct vm_area_struct *vma, unsigned long address,
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+			   unsigned int flags, struct pt_regs *regs);
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-void my_direct_func(struct vm_area_struct *vma,
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-			unsigned long address, unsigned int flags)
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+void my_direct_func(struct vm_area_struct *vma, unsigned long address,
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+		    unsigned int flags, struct pt_regs *regs)
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 {
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-	trace_printk("handle mm fault vma=%p address=%lx flags=%x\n",
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-		     vma, address, flags);
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+	trace_printk("handle mm fault vma=%p address=%lx flags=%x regs=%p\n",
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+		     vma, address, flags, regs);
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 }
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 extern void my_tramp(void *);
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@@ -26,7 +26,9 @@
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 "	pushq %rdi\n"
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 "	pushq %rsi\n"
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 "	pushq %rdx\n"
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+"	pushq %rcx\n"
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 "	call my_direct_func\n"
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+"	popq %rcx\n"
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 "	popq %rdx\n"
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 "	popq %rsi\n"
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 "	popq %rdi\n"