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Subzero: Add basic ELFObjectWriter (text section, symtab, strtab, headers). · 08c3bcd6Jan Voung authored
Able to write out the ELF file header w/ a text section, a symbol table, and string table. Write text buffer directly to file after translating each CFG. This means that the header is written out early w/ fake data and then we seek back and write the real header at the very end. Does not yet handle relocations, data, rodata, constant pools, bss, or -ffunction-sections, more than 64K sections or more than 2^24 symbols. Numbers w/ current NOASSERT=1 build on 176.gcc: w/out -elf-writer: 0.233771 (21.1%): [ 1287] emit 28MB .s file w/ -elf-writer: 0.051056 ( 5.6%): [ 1287] emit 2.4MB .o file BUG=none R=stichnot@chromium.org Review URL: https://codereview.chromium.org/67853300508c3bcd6
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