Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

[qemu.git] / linux-user / uname.c

diff --git a/linux-user/uname.c b/linux-user/uname.c
index f5d4c66f59fbdefe944745b1022312578b93a5fe..32f71f24920d4dcce5f5bc622f03dc33c9b8ca1a 100644 (file)
--- a/linux-user/uname.c
+++ b/linux-user/uname.c
@@ -17,10 +17,10 @@
  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <stdio.h>
+#include "qemu/osdep.h"
 
 #include "qemu.h"
-//#include "qemu-common.h"
+#include "user-internals.h"
 #include "uname.h"
 
 /* return highest utsname machine name for emulated instruction set
@@ -28,7 +28,7 @@
  * NB: the default emulated CPU ("any") might not match any existing CPU, e.g.
  * on ARM it has all features turned on, so there is no perfect arch string to
  * return here */
-const char *cpu_to_uname_machine(void *cpu_env)
+const char *cpu_to_uname_machine(CPUArchState *cpu_env)
 {
 #if defined(TARGET_ARM) && !defined(TARGET_AARCH64)
 
@@ -40,7 +40,7 @@ const char *cpu_to_uname_machine(void *cpu_env)
 
     /* in theory, endianness is configurable on some ARM CPUs, but this isn't
      * used in user mode emulation */
-#ifdef TARGET_WORDS_BIGENDIAN
+#if TARGET_BIG_ENDIAN
 #define utsname_suffix "b"
 #else
 #define utsname_suffix "l"
@@ -52,11 +52,9 @@ const char *cpu_to_uname_machine(void *cpu_env)
     /* earliest emulated CPU is ARMv5TE; qemu can emulate the 1026, but not its
      * Jazelle support */
     return "armv5te" utsname_suffix;
-#elif defined(TARGET_X86_64)
-    return "x86-64";
-#elif defined(TARGET_I386)
+#elif defined(TARGET_I386) && !defined(TARGET_X86_64)
     /* see arch/x86/kernel/cpu/bugs.c: check_bugs(), 386, 486, 586, 686 */
-    CPUState *cpu = ENV_GET_CPU((CPUX86State *)cpu_env);
+    CPUState *cpu = env_cpu(cpu_env);
     int family = object_property_get_int(OBJECT(cpu), "family", NULL);
     if (family == 4) {
         return "i486";
@@ -74,9 +72,8 @@ const char *cpu_to_uname_machine(void *cpu_env)
 
 #define COPY_UTSNAME_FIELD(dest, src) \
   do { \
-      /* __NEW_UTS_LEN doesn't include terminating null */ \
-      (void) strncpy((dest), (src), __NEW_UTS_LEN); \
-      (dest)[__NEW_UTS_LEN] = '\0'; \
+      memcpy((dest), (src), MIN(sizeof(src), sizeof(dest))); \
+      (dest)[sizeof(dest) - 1] = '\0'; \
   } while (0)
 
 int sys_uname(struct new_utsname *buf)