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CMSC 412 -
Project 1 Prerequisites
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Project 1 PrerequisitesProject 1 RoadmapELF File Image vs Executable ImageProject 1 Prerequisites• read the project description • check the newsgroup• read the ELF specification –(pages 1-1..1-4, 2-1..2-3, 2-7..2-8)Project 1 RoadmapCheck• is exeFileData valid ?• read the elfHeader correctly ?–magic numbers• found the two programHeaders ?–check against objdump -x, elfdumpFill out-numSegments-entryAddr-segmentList[]Problems ?• try objdump –x , elfdump on geekos/src/user/a.exe• try lprogdebug=1 in geekos/src/geekos/lprog.c• post your headache on the newsgroup !ELF File Image vs Executable
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