3 files changed, 1 insertions, 16 deletions
diff --git a/linux-user/s390x/target_prctl.h b/linux-user/s390x/target_prctl.h
new file mode 100644
index 0000000000..eb53b31ad5
--- /dev/null
+++ b/linux-user/s390x/target_prctl.h
@@ -0,0 +1 @@
+/* No special prctl support required. */
diff --git a/linux-user/s390x/target_signal.h b/linux-user/s390x/target_signal.h
index 64f5f42201..41e0e34a55 100644
--- a/linux-user/s390x/target_signal.h
+++ b/linux-user/s390x/target_signal.h
@@ -1,21 +1,6 @@
 #ifndef S390X_TARGET_SIGNAL_H
 #define S390X_TARGET_SIGNAL_H
 
-typedef struct target_sigaltstack {
-    abi_ulong ss_sp;
-    abi_int ss_flags;
-    abi_ulong ss_size;
-} target_stack_t;
-
-/*
- * sigaltstack controls
- */
-#define TARGET_SS_ONSTACK      1
-#define TARGET_SS_DISABLE      2
-
-#define TARGET_MINSIGSTKSZ     2048
-#define TARGET_SIGSTKSZ        8192
-
 #include "../generic/signal.h"
 
 #define TARGET_ARCH_HAS_SETUP_FRAME
diff --git a/linux-user/s390x/target_syscall.h b/linux-user/s390x/target_syscall.h
index 94f84178db..4018988a25 100644
--- a/linux-user/s390x/target_syscall.h
+++ b/linux-user/s390x/target_syscall.h
@@ -27,7 +27,6 @@ struct target_pt_regs {
 #define UNAME_MINIMUM_RELEASE "2.6.32"
 
 #define TARGET_CLONE_BACKWARDS2
-#define TARGET_MINSIGSTKSZ        2048
 #define TARGET_MCL_CURRENT 1
 #define TARGET_MCL_FUTURE  2
 #define TARGET_MCL_ONFAULT 4