此前清 WP + 页表全可写,越界写 .rodata 字符串常量静默破坏(格式串 %lu 变 %lc、路径/符号名损坏连锁 → work=+/eyboard/terminal.elf 加载失败)。ProtectKernelRO 经 c.Asm 引用 __rodata_start/__rodata_end 清 PTE_WRITABLE,配合 CR0.WP 置位,越界写触发 #PF 打印 cr2/rip。
42 lines
584 B
Plaintext
42 lines
584 B
Plaintext
ENTRY(_start)
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SECTIONS {
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. = 0x100000;
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.text : {
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*(.text.startup)
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*(.text)
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*(.text.*)
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}
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.rodata : {
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__rodata_start = .;
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*(.rodata)
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*(.rodata.*)
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__rodata_end = .;
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}
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.data : {
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*(.data)
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*(.data.*)
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}
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.bss : {
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__bss_start = .;
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*(.bss)
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*(.bss.*)
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*(COMMON)
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__bss_end = .;
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}
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/DISCARD/ : {
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*(.comment)
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*(.note)
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*(.eh_frame)
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*(.eh_frame_hdr)
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*(.reloc)
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*(.rela)
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*(.debug*)
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}
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}
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