getaddrinfo: add EAI_NODATA error code to distinguish NODATA vs NxDomain

[musl] / src / thread / __unmapself.c

diff --git a/src/thread/__unmapself.c b/src/thread/__unmapself.c
index 1d3bee1..31d94e6 100644 (file)
--- a/src/thread/__unmapself.c
+++ b/src/thread/__unmapself.c
@@ -4,7 +4,6 @@
 /* cheat and reuse CRTJMP macro from dynlink code */
 #include "dynlink.h"
 
-static volatile int lock;
 static void *unmap_base;
 static size_t unmap_size;
 static char shared_stack[256];
@@ -17,12 +16,8 @@ static void do_unmap()
 
 void __unmapself(void *base, size_t size)
 {
-       int tid=__pthread_self()->tid;
        char *stack = shared_stack + sizeof shared_stack;
        stack -= (uintptr_t)stack % 16;
-       while (lock || a_cas(&lock, 0, tid))
-               a_spin();
-       __syscall(SYS_set_tid_address, &lock);
        unmap_base = base;
        unmap_size = size;
        CRTJMP(do_unmap, stack);