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Update study-gdb-从pr开始1.md(draft)
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posts/study-gdb-从pr开始1.md(draft)

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gdbarch_init_osabi (info, gdbarch);
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set_gdbarch_register_reggroup_p (gdbarch, loongarch_register_reggroup_p);
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```
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## 附录
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线程对应的堆栈示意
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地址 区域 生长方向
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高地址 (0xFF...) 栈 (Stack) 向下增长(向低地址)
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中间的巨大空隙(可用空间)
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mmap 区域向上或向下
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堆 (Heap) 向上增长(向高地址)
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BSS/数据段固定大小
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代码段 (.text)固定大小
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低地址 (0x00...) 不可访问区域
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