Here is a minimal C implementation of a spinlock "lock" operation using GCC's built-in atomics:

#include <stdbool.h>

void spin_lock(bool *l) {
  while (__atomic_test_and_set(l, __ATOMIC_ACQUIRE))
    ;
}

I am concerned…

Greetings,

I'm currently experimenting with Jekyll and I'm trying to make an GNU ARM Assembly syntax highlighter for Rouge.

However, the ARM Architecture Reference Manual does not seem to have a simple complete list of mnemonics. They are all…

Hello,

I would like to download the GCC compiler for ARMv7-A. I would like it to support thumb and NEON instructions. Where can I get the latest version?

Also, are there any other open source compilers that meet the above requirements?

Thanks