[Qemu-devel] [PULL 1/2] linux-user: assume __NR_gettid always exists

[Laurent Vivier <laurent@vivier.eu>]

From: Daniel P. Berrangé <berrange@redhat.com>

The gettid syscall was introduced in Linux 2.4.11. This is old enough
that we can assume it always exists and thus not bother with the
conditional backcompat logic.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190320161842.13908-2-berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 208fd1813d6a..11729f382cf4 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -249,15 +249,7 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,	\
 #define TARGET_NR__llseek TARGET_NR_llseek
 #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;
-}
-#endif
 
 /* For the 64-bit guest on 32-bit host case we must emulate
  * getdents using getdents64, because otherwise the host
-- 
2.20.1