cosmopolitan/libc/nexgen32e/threaded.h
Justine Tunney 425ff5dff0 Refactor some code
- Write tests for cthreads
- Fix bugs in pe2.com tool
- Fix ASAN issue with GetDosEnviron()
- Consolidate the cthread header files
- Some code size optimizations for MODE=
- Attempted to squash a tls linker warning
- Attempted to get futexes working on FreeBSD
2022-05-28 14:09:21 -07:00

32 lines
982 B
C

#ifndef COSMOPOLITAN_LIBC_NEXGEN32E_THREADED_H_
#define COSMOPOLITAN_LIBC_NEXGEN32E_THREADED_H_
#include "libc/dce.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern int __threaded;
extern bool __tls_enabled;
extern unsigned __tls_index;
char *__get_tls(void) libcesque nosideeffect;
void *__initialize_tls(char[64]);
void __install_tls(char[64]);
#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_THREADED_H_ */