cosmopolitan/libc/nexgen32e/gettls.h
Justine Tunney 8cdec62f5b Apply even more fixups
- Finish cleaning up the stdio unlocked APIs
- Make __cxa_finalize() properly thread safe
- Don't log locks if threads aren't being used
- Add some more mutex guards to places using _mmi
- Specific lock names now appear in the --ftrace logs
- Fix mkdeps.com generating invalid Makefiles sometimes
- Simplify and fix bugs in the test runner infrastructure
- Fix issue where sometimes some functions wouldn't be logged
2022-06-12 11:57:00 -07:00

27 lines
869 B
C

#ifndef COSMOPOLITAN_LIBC_NEXGEN32E_GETTLS_H_
#define COSMOPOLITAN_LIBC_NEXGEN32E_GETTLS_H_
#include "libc/dce.h"
#include "libc/nexgen32e/threaded.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
char *__get_tls(void) libcesque nosideeffect;
#if defined(__GNUC__) && defined(__x86_64__) && !defined(__STRICT_ANSI__)
static noasan inline char *__get_tls_inline(void) {
char *tib, *lin = (char *)0x30;
if (IsLinux() || IsFreebsd() || IsNetbsd() || IsOpenbsd()) {
asm("mov\t%%fs:(%1),%0" : "=a"(tib) : "r"(lin) : "memory");
} else {
asm("mov\t%%gs:(%1),%0" : "=a"(tib) : "r"(lin) : "memory");
if (IsWindows()) {
tib = *(char **)(tib + 0x1480 + __tls_index * 8);
}
}
return tib;
}
#endif /* GNU x86-64 */
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_NEXGEN32E_GETTLS_H_ */