A "proper" implementation of the stub would assign ENOSYS to
errno and return -1. As it is, the subsequent get_error will
return whatever garbage value was in errno.
Use the bogus syscall method for defining the stub function.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
linux-user/syscall.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 4dc2312ae6..46c7c485fd 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -256,17 +256,12 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4
arg4,type5 arg5, \
#ifndef __NR_getrandom
#define __NR_getrandom -1
#endif
-
-#ifdef __NR_gettid
-_syscall0(int, gettid)
-#else
-/* This is a replacement for the host gettid() and must return a host
- errno. */
-static int gettid(void) {
- return -ENOSYS;
-}
+#ifndef __NR_gettid
+#define __NR_gettid -1
#endif
+_syscall0(int, gettid)
+
/* For the 64-bit guest on 32-bit host case we must emulate
* getdents using getdents64, because otherwise the host
* might hand us back more dirent records than we can fit
--
2.17.1
