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www.humprog.org | ||
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www.caichinger.com
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| | | | | Introduction ELF is the file format used for object files (.o's), binaries, shared libraries and core dumps in Linux. It's actually pretty simple and well thought-out. ELF has the same layout for all architectures, however endianness and word size can differ; relocation types, symbol types and the like may have platform-specific values, and of course the contained code is arch specific. An ELF file provides 2 views on the data it contains: A linking view and an execution view. Those two views can be accessed by two headers: the section header table and the program header table. Linking view: Section Header Table (SHT) The SHT gives an overview on the sections contained in the ELF file. Of particular interest are REL sections (relocations), SYMTAB/DYNSYM (sym... | |
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x86.lol
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| | | | | In the RISC-V architecture, you have excellent support for embedding information into code by choosing compressed or uncompressed instructions. While being a typical RISC with fixed 32-bit instruction length, RISC-V allows certain common instructions to be encoded as compressed 16-bit instructions to improve code density. Each compressed instruction has a functionally identical 32-bit cousin. | |
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werat.dev
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| | | | | Wine is a compatibility layer capable of running Windows applications on several POSIX-compliant operating systems, such as Linux, macOS, & BSD (https://www.winehq.org). If you have been using Linux for some time now, chances are you've used Wine at some point. Maybe to run that one very important Windows program that doesn't have a Linux version or maybe to play World of Warcraft or some other game. Fun fact, Valve's Steam Deck uses a Wine-based solution to run games (called Proton). | |
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www.productive-cpp.com
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| | | In the first part of this series we discussed the mechanics of an exploit, the general concept of hardening, and the stack protector hardening technique in particular. Some of the concepts explained there will be | ||
