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--HG-- rename : content/svg/content/nsISVGPoint.cpp => content/svg/content/src/DOMSVGPoint.cpp rename : docshell/test/browser/browser_bug234628-9.js => docshell/test/browser/browser_bug134911.js rename : layout/reftests/w3c-css/submitted/values3/calc-background-image-gradient-1-ref.html => layout/reftests/css-calc/background-image-gradient-1-ref.html rename : layout/reftests/w3c-css/submitted/values3/calc-background-image-gradient-1.html => layout/reftests/css-calc/background-image-gradient-1.html rename : layout/reftests/w3c-css/submitted/values3/reftest.list => layout/reftests/css-calc/reftest.list rename : layout/reftests/text/auto-hyphenation-10-ref.html => layout/reftests/text/auto-hyphenation-10.html rename : layout/reftests/text/auto-hyphenation-8-ref.html => layout/reftests/text/auto-hyphenation-8.html rename : layout/reftests/text/auto-hyphenation-9-ref.html => layout/reftests/text/auto-hyphenation-9.html extra : rebase_source : 012df725d55b031ccc03d9bfcf785056d95a2ebe |
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| .. | ||
| dummy.c | ||
| elf.cpp | ||
| elfhack.cpp | ||
| elfxx.h | ||
| inject.c | ||
| Makefile.in | ||
| README | ||
| test-array.c | ||
| test-ctors.c | ||
| test.c | ||
Elfhack is a program to optimize ELF binaries for size and cold startup speed. Presently, it is quite experimental, though it works well for the target it was created for: Firefox's libxul.so. Elfhack currently only does one thing: packing dynamic relocations ; which ends up being a quite complex task, that can be summarized this way: - Remove RELATIVE relocations from the .rel.dyn/.rela.dyn section. - Inject a small code able to apply relative relocations "by hand" after the .rel.dyn/.rela.dyn section. - Inject a section containing relocative relocations in a different and more packed format, after the small code. - Register the small code as DT_INIT function. Make the small code call what was initially the DT_INIT function, if there was one. - Remove the hole between the new section containing relative relocations and the following sections, adjusting offsets and base addresses accordingly. - Adjust PT_LOAD entries to fit new offsets, and add an additional PT_LOAD entry when that is necessary to handle the discrepancy between offsets and base addresses, meaning the section offsets may yet again need adjustments. - Adjust various DT_* dynamic tags to fit the new ELF layout. - Adjust section headers. - Adjust ELF headers. See http://glandium.org/blog/?p=1177#relocations for some figures.