musl/arch/wasm32/atomic_arch.h

#ifndef __NR_restart_syscall
#include <syscall.h>
#endif

#include <stdlib.h>

#define a_barrier() syscall(__NR_membarrier)

#define a_cas a_cas
static inline int a_cas(volatile int *p, int t, int s)
{
  int old = *p;
  if (old == t)
    *p = s;
  return old;
}

#define a_crash() abort()
Fixes. 2016-01-28 11:05:27 -08:00			`#ifndef __NR_restart_syscall`
[WebAssembly] Enable building with 'make' command This change enables all of the .c sources in musl be built with the clang -target wasm32-unknown-unknown-wasm 2017-10-19 17:28:13 -07:00			`#include <syscall.h>`
Fixes. 2016-01-28 11:05:27 -08:00			`#endif`

[WebAssembly] Enable building with 'make' command This change enables all of the .c sources in musl be built with the clang -target wasm32-unknown-unknown-wasm 2017-10-19 17:28:13 -07:00			`#include <stdlib.h>`

Fixes. 2016-01-28 11:05:27 -08:00			`#define a_barrier() syscall(__NR_membarrier)`

[WebAssebmly] Implement a_cas() in arch/wasm32/atomic_arch.h (#36) 2018-01-13 08:46:40 -08:00			`#define a_cas a_cas`
			`static inline int a_cas(volatile int *p, int t, int s)`
			`{`
			`int old = *p;`
			`if (old == t)`
			`*p = s;`
			`return old;`
			`}`
Fixes. 2016-01-28 11:05:27 -08:00
			`#define a_crash() abort()`