| Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente |
| c:accueil [2024/09/29 11:30] – [Langage C] add link phsw | c:accueil [2025/11/05 15:18] (Version actuelle) – [Langage C] add link phsw |
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| * [[http://gauss.ececs.uc.edu/Courses/c4029/code/C-primer/c-primer.pdf]] | * [[http://gauss.ececs.uc.edu/Courses/c4029/code/C-primer/c-primer.pdf]] |
| * [[https://axcheron.github.io/playing-with-ld_preload/|Playing with LD_PRELOAD]] | * [[https://axcheron.github.io/playing-with-ld_preload/|Playing with LD_PRELOAD]] |
| * [[https://jorengarenar.github.io/blog/less-known-c|Few lesser known tricks, quirks and features of C]] | * [[https://jorengarenar.github.io/blog/less-known-c|Few lesser known tricks, quirks and features of C]] ou [[https://jorenar.com/blog/less-known-c|Few lesser known tricks, quirks and features of C]] |
| * [[https://lemire.me/blog/2024/01/21/c23-a-slightly-better-c/|C23: a slightly better C]] | * [[https://lemire.me/blog/2024/01/21/c23-a-slightly-better-c/|C23: a slightly better C]] |
| * [[https://wordsandbuttons.online/so_you_think_you_know_c.html|So you think you know C?]] | * [[https://wordsandbuttons.online/so_you_think_you_know_c.html|So you think you know C?]] |
| * [[https://zestedesavoir.com/articles/4559/la-norme-c23-est-dans-les-cartons-1/|La norme C23 est dans les cartons]] | * [[https://zestedesavoir.com/articles/4559/la-norme-c23-est-dans-les-cartons-1/|La norme C23 est dans les cartons]] |
| * [[https://github.com/theokwebb/C-from-Scratch|C from Scratch]] | * [[https://github.com/theokwebb/C-from-Scratch|C from Scratch]] |
| | * [[https://bible.malcore.io/readme/the-beginning/introduction-to-c|Introduction to C]] |
| | * [[https://lemon.rip/w/c99-vla-tricks/|C99 doesn't need function bodies, or 'VLAs are Turing complete']] |
| | * [[https://developers.redhat.com/articles/2024/12/11/making-memcpynull-null-0-well-defined|Making memcpy(NULL, NULL, 0) well-defined]] |
| | * [[https://fuckingfunctionpointers.com/|How Do I Declare a Function Pointer in C?]] |
| | * [[https://embeddedor.com/blog/2024/06/18/how-to-use-the-new-counted_by-attribute-in-c-and-linux/|How to use the new counted_by attribute in C (and Linux)]] |
| | * [[https://github.com/CodeWithHarry/The-Ultimate-C-Programming-Course|The Ultimate C Programming Handbook]] |
| | * [[http://www.graphics.stanford.edu/~seander/bithacks.html|Bit Twiddling Hacks]] |
| | |
| |
| |
| printf("stdin is a file or a pipe\n"); | printf("stdin is a file or a pipe\n"); |
| </code> | </code> |
| | |
| | |
| | ==== _Generic ==== |
| | |
| | * [[https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/c11-generic/|Workarounds for C11 _Generic]] |
| | * [[https://medium.com/@pauljlucas/generic-in-c-d7ab47e3b5ab|_Generic in C]] |
| | * [[https://en.cppreference.com/w/c/language/generic.html|Generic selection (since C11)]] |
| | * [[http://www.robertgamble.net/2012/01/c11-generic-selections.html|C11 - Generic Selections]] |
| |
| |
| <code bash> | <code bash> |
| addr2line -e main.out 0x4007db | addr2line -e main.out 0x4007db |
| | </code> |
| | |
| | <code bash> |
| | #!/bin/bash |
| | |
| | readonly BACKTRACE_FILE=$1 |
| | |
| | for l in $(grep -E "^/.+\(.+\)\[.+\]" $BACKTRACE_FILE) |
| | do |
| | lib=$(echo $l | sed -E "s/(\/.+)\(.+/\1/g") |
| | addr=$(echo $l | sed -E "s/.+\((.+)\).+/\1/g") |
| | ans=$(addr2line -e $lib $addr) |
| | if [[ $ans == "??"* ]] |
| | then |
| | echo $l |
| | else |
| | echo $ans |
| | fi |
| | done |
| </code> | </code> |
| |
| |
| * [[https://blog.malicious.group/inline-assembly/|Inline Assembly]] | * [[https://blog.malicious.group/inline-assembly/|Inline Assembly]] |
| | * [[https://s-mazigh.github.io/ASMx86_64/index.html|ASM x86_64]] |
| | * https://diveintosystems.org/book/C7-x86_64/index.html |
| | * [[https://yuriygeorgiev.com/2024/02/19/x86-64-cpu-architecture-the-stack/|x86/x64 CPU architecture: the stack & stack frames]] |
| | * [[https://cs.brown.edu/courses/cs033/docs/guides/x64_cheatsheet.pdf|x64 Cheat Sheet]] |
| |
| |
| Ajouter l'option ''-fdiagnostics-color=always'' à la commande ''gcc'' ([[https://stackoverflow.com/questions/26070873/how-to-set-gcc-colors-in-gcc4-9-to-emit-colorizing-diagnostics-messages|source]]). | Ajouter l'option ''-fdiagnostics-color=always'' à la commande ''gcc'' ([[https://stackoverflow.com/questions/26070873/how-to-set-gcc-colors-in-gcc4-9-to-emit-colorizing-diagnostics-messages|source]]). |
| |
| | |
| | |
| | ==== ifunc ==== |
| | |
| | Mécanisme qui permet de choisir quelle fonction associer à un symbole lors de la résolution des symboles lors du lancement d'un binaire. |
| | |
| | * [[https://jasoncc.github.io/gnu_gcc_glibc/gnu-ifunc.html|GNU Indirect Function and x86 ELF ABIs]] |
| | * [[https://willnewton.name/2013/07/02/using-gnu-indirect-functions/|Using GNU indirect functions]] |
| | * [[https://maskray.me/blog/2021-01-18-gnu-indirect-function|GNU indirect function]] |
| | |
| | |
| | ==== Gestion des caractères non-ASCII ==== |
| | |
| | * [[https://stackoverflow.com/questions/32523898/c-reading-non-ascii-characters|c reading non ASCII characters]] |
| | |
| | |
| | ==== Fichiers de suppressions pour sanitizers ==== |
| | |
| | * [[https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer#suppressions]] |
| | |
| | Dans un fichier ''asan.supp'' : |
| | <code> |
| | leak:libdbus-1.so |
| | </code> |
| | |
| | <code bash> |
| | LSAN_OPTIONS=suppressions=asan.supp,print_suppressions=0 ./programme |
| | </code> |