diff options
Diffstat (limited to 'md/writeup/making_c_executables_smaller.md')
| -rw-r--r-- | md/writeup/making_c_executables_smaller.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/md/writeup/making_c_executables_smaller.md b/md/writeup/making_c_executables_smaller.md index 1fb5341..6b50516 100644 --- a/md/writeup/making_c_executables_smaller.md +++ b/md/writeup/making_c_executables_smaller.md @@ -27,13 +27,13 @@ int main() ``` Compile: -``` +```sh gcc main.c -o main -lSDL ``` Size before: 5326 bytes Execute command: -``` +```sh strip main ``` @@ -50,7 +50,7 @@ ELF kickers[2] webpage. Execute command: -``` +```bash sstrip main ``` @@ -62,7 +62,7 @@ GC Masher[3] Allows to brute force gcc options for smaller executable size. I where using this options for gcsmaher -``` +```text -O -O0 -O1 -O2 -O3 -Os -ffast-math -fomit-frame-pointer @@ -96,7 +96,7 @@ a=/tmp/I;tail -n+2 $0|zcat>$a;chmod +x $a;$a;rm $a;exit Best options and smallest size now is 563 byte. Nope this is not smallest size try to rename executable name to one symbol and you will get 4 extra bytes. -``` +```bash gcc -Os -ffast-math -fomit-frame-pointer -fauto-inc-dec -mpush-args -mno-red-zone -c small.c; ld -dynamic-linker /lib/ld-linux.so.2 small.o /usr/lib/libSDL.so -o small; |