write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/arch/x86/include/asm/frame.h
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@@ -60,12 +60,26 @@
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 #define FRAME_END "pop %" _ASM_BP "\n"
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 #ifdef CONFIG_X86_64
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+
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 #define ENCODE_FRAME_POINTER			\
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 	"lea 1(%rsp), %rbp\n\t"
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+
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+static inline unsigned long encode_frame_pointer(struct pt_regs *regs)
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+{
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+	return (unsigned long)regs + 1;
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+}
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+
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 #else /* !CONFIG_X86_64 */
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+
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 #define ENCODE_FRAME_POINTER			\
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 	"movl %esp, %ebp\n\t"			\
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 	"andl $0x7fffffff, %ebp\n\t"
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+
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+static inline unsigned long encode_frame_pointer(struct pt_regs *regs)
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+{
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+	return (unsigned long)regs & 0x7fffffff;
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+}
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+
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 #endif /* CONFIG_X86_64 */
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 #endif /* __ASSEMBLY__ */
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@@ -83,6 +97,11 @@
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 #define ENCODE_FRAME_POINTER
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+static inline unsigned long encode_frame_pointer(struct pt_regs *regs)
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+{
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+	return 0;
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+}
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+
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 #endif
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 #define FRAME_BEGIN