我開發了一個簡單的pintool來列出該程序的主要可執行映像的所有部分(迭代所有部分),以及使用IMG_HighAddress
和IMG_LowAddress
的低限和高限;根據Pin,這些返回圖像的一定限制。段地址超出圖像區域 - 英特爾銷
令我驚訝的是,該段就遠遠超出這些函數報道的下限和上限。我做錯了什麼,還是這些功能不準確?
我的圖像加載功能:
VOID ImageLoad(IMG img, VOID *v)
{
if (!IMG_IsMainExecutable(img))
return;
ADDRINT mainExeImageLowAddr = IMG_LowAddress(img);
ADDRINT mainExeImageHighAddr = IMG_HighAddress(img);
cout << "Image limits " << hex << mainExeImageLowAddr << " - " << mainExeImageHighAddr << endl;
for (SEC sec = IMG_SecHead(img); SEC_Valid(sec); sec = SEC_Next(sec))
{
cout << "Section " << SEC_Name(sec) << " at addresses 0x" << hex << SEC_Address(sec) << " - 0x" << SEC_Address(sec)+SEC_Size(sec)-1 << endl;
}
}
上運行它/斌/ LS結果:
Image limits 400000 - 418b23
Section .interp at addresses 0x400200 - 0x40021b
Section .note.ABI-tag at addresses 0x40021c - 0x40023b
Section .note.gnu.build-id at addresses 0x40023c - 0x40025f
Section .dynsym at addresses 0x4002c8 - 0x400eaf
Section .rela.dyn at addresses 0x401618 - 0x4017c7
Section .rela.plt at addresses 0x4017c8 - 0x402157
Section .init at addresses 0x402158 - 0x40216f
Section .plt at addresses 0x402170 - 0x4027df
Section .text at addresses 0x4027e0 - 0x412347
Section .fini at addresses 0x412348 - 0x412355
Section .rodata at addresses 0x412360 - 0x415e86
Section .eh_frame_hdr at addresses 0x415e88 - 0x41653b
Section .eh_frame at addresses 0x416540 - 0x41851b
Section .dynstr at addresses 0x41851c - 0x418b23
Section .ctors at addresses 0x619000 - 0x61900f
Section .dtors at addresses 0x619010 - 0x61901f
Section .jcr at addresses 0x619020 - 0x619027
Section .data.rel.ro at addresses 0x619040 - 0x619a87
Section .dynamic at addresses 0x619a88 - 0x619c57
Section .got at addresses 0x619c58 - 0x619cef
Section .got.plt at addresses 0x619cf0 - 0x61a037
Section .data at addresses 0x61a040 - 0x61a23f
Section .bss at addresses 0x61a240 - 0x61af5f
Section .gnu.conflict at addresses 0x61af60 - 0x61b6f7
Section .gnu_debuglink at addresses 0x0 - 0xf
Section .gnu.prelink_undo at addresses 0x0 - 0x8ff
Section .shstrtab at addresses 0x0 - 0x12d
通知的功能句話:'在這種情況下,該函數將返回文本segment'的高地址。由於你寫的Unix映像往往會在內存中分裂,所以這種情況幾乎總是會發生的。 – nitzanms