A non exhaustive list of gcc compiler options.
$ gcc myprog.c -o myprog -Wall -Wextra -pedantic -std=c11 [...]
Kaiwan N Billimoria kaiwan
kaiwan
/ kaiwantech_github_repos
Last active
January 29, 2025 03:06
All relevant kaiwanTECH GitHub repos
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| ---------------------------------------------------------------------------------------------------------------- | |
| Kaiwan N Billimoria, kaiwanTECH : opensource GitHub repos for source code | |
| ---------------------------------------------------------------------------------------------------------------- | |
| <<------- My book repos ------->> | |
| Linux Kernel Programming, 2E (2nd Edition) | |
| - A comprehensive guide to kernel internals, writing kernel modules, and kernel synchronization | |
| Packt, Feb 2024 | |
| https://github.com/PacktPublishing/Linux-Kernel-Programming_2E |
g-berthiaume
/ Useful GCC Compiler Options.md
Created
December 31, 2018 18:27
A useful list of gcc compiler options
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| Source material: | |
| http://security.stackexchange.com/questions/24444/what-is-the-most-hardened-set-of-options-for-gcc-compiling-c-c | |
| https://wiki.gentoo.org/wiki/Hardened_Gentoo | |
| https://wiki.debian.org/Hardening | |
| ================================================================================================================> | |
| GCC Security related flags and options: | |
| CFLAGS="-fPIE -fstack-protector-all -D_FORTIFY_SOURCE=2" | |
| LDFLAGS="-Wl,-z,now -Wl,-z,relro" |
mikea
/ latency.txt
Created
May 31, 2012 15:23
— forked from jboner/latency.txt
Latency numbers every programmer should know
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| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 4x mutex op, 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns | |
| Send 2K bytes over 1 Gbps network 20,000 ns | |
| Read 1 MB sequentially from memory 250,000 ns |