/etc/portage/patches/app-emulation/qemu-user/syscall.patch

--- a/linux-user/syscall.c      2014-01-05 17:53:52.931343033 +0400
+++ b/linux-user/syscall.c      2014-01-05 18:50:44.167192784 +0400
@@ -109,6 +109,7 @@
 #include <linux/filter.h>
 #include "linux_loop.h"
 #include "cpu-uname.h"
+#include "sys/capability.h"

 #include "qemu.h"

@@ -7723,9 +7724,35 @@
         unlock_user(p, arg1, ret);
         break;
     case TARGET_NR_capget:
-        goto unimplemented;
+        {
+            struct __user_cap_header_struct *target_hdrp;
+            struct __user_cap_data_struct *target_datap;
+
+            if (!lock_user_struct(VERIFY_READ, target_hdrp, arg1, 1)) goto efault;
+            if (!lock_user_struct(VERIFY_WRITE, target_datap, arg2, 1)) {
+                unlock_user_struct(target_hdrp, arg1, 0);
+                goto efault;
+            }
+            ret = get_errno( capget( target_hdrp, target_datap) );
+            unlock_user_struct(target_hdrp, arg1, 0);
+            unlock_user_struct(target_datap, arg2, 1);
+            break;
+        }
     case TARGET_NR_capset:
-        goto unimplemented;
+        {
+            struct __user_cap_header_struct *target_hdrp;
+            struct __user_cap_data_struct *target_datap;
+
+            if (!lock_user_struct(VERIFY_READ, target_hdrp, arg1, 1)) goto efault;
+            if (!lock_user_struct(VERIFY_READ, target_datap, arg2, 1)) {
+                unlock_user_struct(target_hdrp, arg1, 0);
+                goto efault;
+            }
+            ret = get_errno( capset( target_hdrp, target_datap) );
+            unlock_user_struct(target_hdrp, arg1, 0);
+            unlock_user_struct(target_datap, arg2, 0);
+            break;
+        }
     case TARGET_NR_sigaltstack:
 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
     defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \