errno.c: add tls versions of errno and h_errno

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

2 files changed, 15 insertions, 1 deletions

diff --git a/libc/misc/internals/errno.c b/libc/misc/internals/errno.c
index 029fdcfde..e1b5d7e84 100644
--- a/libc/misc/internals/errno.c
+++ b/libc/misc/internals/errno.c
@@ -1,5 +1,15 @@
-#include "internal_errno.h"
+#include <features.h>
+
+#ifdef __UCLIBC_HAS_TLS__
+__thread int errno;
+__thread int h_errno;
+
+extern __thread int __libc_errno __attribute__ ((alias ("errno")));
+extern __thread int __libc_h_errno __attribute__ ((alias ("h_errno")));
+#define h_errno __libc_h_errno
 
+#else
+#include "internal_errno.h"
 int errno = 0;
 int h_errno = 0;
 
@@ -9,3 +19,4 @@ weak_alias(errno, _errno)
 libc_hidden_def(h_errno)
 weak_alias(h_errno, _h_errno)
 #endif
+#endif
diff --git a/libc/misc/internals/internal_errno.h b/libc/misc/internals/internal_errno.h
index a93d0bf02..b49198579 100644
--- a/libc/misc/internals/internal_errno.h
+++ b/libc/misc/internals/internal_errno.h
@@ -6,6 +6,8 @@
 #include <errno.h>
 #include <netdb.h>
 
+#ifndef __UCLIBC_HAS_TLS__
+
 #undef errno
 #undef h_errno
 
@@ -16,3 +18,4 @@ extern int errno;
 libc_hidden_proto(h_errno)
 libc_hidden_proto(errno)
 #endif
+#endif