mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-25 23:02:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Clean up the clone() code a bit

Browse source
This commit is contained in:
Justine Tunney 2022-05-17 07:40:00 -07:00
parent ce71677156
commit 2743f3d012
20 changed files with 252 additions and 150 deletions
Download patch file Download diff file Expand all files Collapse all files

24
libc/sysv/errno.greg.c
View file

@ -16,11 +16,8 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/intrin/threaded.h"
#include "libc/nt/thread.h"
#include "libc/errno.h"
#include "libc/nexgen32e/threaded.h"
/**
* Global variable for last error.
@ -36,24 +33,9 @@
*/
errno_t __errno;
/**
* Returns address of thread information block.
* @see __install_tls()
* @see clone()
*/
privileged nocallersavedregisters char *__get_tls(void) {
char *tib, *linear = (char *)0x30;
if (IsLinux() || IsFreebsd() || IsNetbsd() || IsOpenbsd()) {
asm("mov\t%%fs:(%1),%0" : "=a"(tib) : "r"(linear));
} else {
asm("mov\t%%gs:(%1),%0" : "=a"(tib) : "r"(linear));
if (IsWindows()) tib = *(char **)(tib + 0x1480 + __tls_index * 8);
}
return tib;
}
/**
* Returns address of errno variable.
*
* @see __initialize_tls()
* @see __install_tls()
*/