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-rw-r--r--linux-user/aarch64/target_cpu.h2
-rw-r--r--linux-user/aarch64/target_structs.h2
-rw-r--r--linux-user/alpha/target_cpu.h2
-rw-r--r--linux-user/alpha/target_signal.h3
-rw-r--r--linux-user/alpha/target_structs.h2
-rw-r--r--linux-user/arm/target_cpu.h2
-rw-r--r--linux-user/arm/target_signal.h6
-rw-r--r--linux-user/arm/target_structs.h2
-rw-r--r--linux-user/cris/target_cpu.h2
-rw-r--r--linux-user/cris/target_signal.h6
-rw-r--r--linux-user/cris/target_structs.h2
-rw-r--r--linux-user/hppa/target_cpu.h2
-rw-r--r--linux-user/hppa/target_signal.h2
-rw-r--r--linux-user/hppa/target_structs.h2
-rw-r--r--linux-user/i386/target_cpu.h2
-rw-r--r--linux-user/i386/target_signal.h6
-rw-r--r--linux-user/i386/target_structs.h2
-rw-r--r--linux-user/m68k/target_signal.h6
-rw-r--r--linux-user/main.c6
-rw-r--r--linux-user/microblaze/target_cpu.h2
-rw-r--r--linux-user/microblaze/target_signal.h6
-rw-r--r--linux-user/microblaze/target_structs.h2
-rw-r--r--linux-user/mips/target_cpu.h2
-rw-r--r--linux-user/mips/target_signal.h6
-rw-r--r--linux-user/mips/target_structs.h2
-rw-r--r--linux-user/mips64/target_cpu.h2
-rw-r--r--linux-user/mips64/target_signal.h7
-rw-r--r--linux-user/nios2/target_cpu.h2
-rw-r--r--linux-user/nios2/target_signal.h5
-rw-r--r--linux-user/nios2/target_structs.h2
-rw-r--r--linux-user/ppc/target_cpu.h2
-rw-r--r--linux-user/ppc/target_signal.h6
-rw-r--r--linux-user/ppc/target_structs.h2
-rw-r--r--linux-user/ppc/target_syscall.h2
-rw-r--r--linux-user/s390x/target_signal.h2
-rw-r--r--linux-user/s390x/target_structs.h2
-rw-r--r--linux-user/sh4/target_signal.h6
-rw-r--r--linux-user/sparc/target_cpu.h2
-rw-r--r--linux-user/sparc/target_signal.h6
-rw-r--r--linux-user/sparc/target_structs.h2
-rw-r--r--linux-user/sparc64/target_structs.h2
-rw-r--r--linux-user/syscall.c26
-rw-r--r--linux-user/tilegx/target_cpu.h2
-rw-r--r--linux-user/tilegx/target_structs.h2
-rw-r--r--linux-user/x86_64/target_signal.h6
-rw-r--r--linux-user/x86_64/target_structs.h2
46 files changed, 87 insertions, 82 deletions
diff --git a/linux-user/aarch64/target_cpu.h b/linux-user/aarch64/target_cpu.h
index 6cc02e7dcd..97a477bd3e 100644
--- a/linux-user/aarch64/target_cpu.h
+++ b/linux-user/aarch64/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/aarch64/target_structs.h b/linux-user/aarch64/target_structs.h
index a4998a7491..7c748344ca 100644
--- a/linux-user/aarch64/target_structs.h
+++ b/linux-user/aarch64/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/alpha/target_cpu.h b/linux-user/alpha/target_cpu.h
index ad408ab5cc..dc2dd65194 100644
--- a/linux-user/alpha/target_cpu.h
+++ b/linux-user/alpha/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/alpha/target_signal.h b/linux-user/alpha/target_signal.h
index cd63d59fde..b83797281c 100644
--- a/linux-user/alpha/target_signal.h
+++ b/linux-user/alpha/target_signal.h
@@ -42,8 +42,7 @@
 
 typedef struct target_sigaltstack {
     abi_ulong ss_sp;
-    int32_t ss_flags;
-    int32_t dummy;
+    abi_int ss_flags;
     abi_ulong ss_size;
 } target_stack_t;
 
diff --git a/linux-user/alpha/target_structs.h b/linux-user/alpha/target_structs.h
index db2bfe2876..d91cebdea8 100644
--- a/linux-user/alpha/target_structs.h
+++ b/linux-user/alpha/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/arm/target_cpu.h b/linux-user/arm/target_cpu.h
index 2747211b24..709d19bc9e 100644
--- a/linux-user/arm/target_cpu.h
+++ b/linux-user/arm/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/arm/target_signal.h b/linux-user/arm/target_signal.h
index ea123c40f3..0998dd6dfa 100644
--- a/linux-user/arm/target_signal.h
+++ b/linux-user/arm/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_long ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/arm/target_structs.h b/linux-user/arm/target_structs.h
index 9a3dbce03d..339b070bf1 100644
--- a/linux-user/arm/target_structs.h
+++ b/linux-user/arm/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/cris/target_cpu.h b/linux-user/cris/target_cpu.h
index 74ead55c81..7f6cade7b6 100644
--- a/linux-user/cris/target_cpu.h
+++ b/linux-user/cris/target_cpu.h
@@ -7,7 +7,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/cris/target_signal.h b/linux-user/cris/target_signal.h
index 1cb5548f85..495a142896 100644
--- a/linux-user/cris/target_signal.h
+++ b/linux-user/cris/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_ulong ss_size;
-	abi_long ss_flags;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/cris/target_structs.h b/linux-user/cris/target_structs.h
index 76f965325c..f949d2331e 100644
--- a/linux-user/cris/target_structs.h
+++ b/linux-user/cris/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/hppa/target_cpu.h b/linux-user/hppa/target_cpu.h
index 71654b3cd4..aacf3e9e02 100644
--- a/linux-user/hppa/target_cpu.h
+++ b/linux-user/hppa/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/hppa/target_signal.h b/linux-user/hppa/target_signal.h
index c2a0102ed7..c52a3ea579 100644
--- a/linux-user/hppa/target_signal.h
+++ b/linux-user/hppa/target_signal.h
@@ -44,7 +44,7 @@
 
 typedef struct target_sigaltstack {
     abi_ulong ss_sp;
-    int32_t ss_flags;
+    abi_int ss_flags;
     abi_ulong ss_size;
 } target_stack_t;
 
diff --git a/linux-user/hppa/target_structs.h b/linux-user/hppa/target_structs.h
index b560b1872b..b7cf4a3b0f 100644
--- a/linux-user/hppa/target_structs.h
+++ b/linux-user/hppa/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/i386/target_cpu.h b/linux-user/i386/target_cpu.h
index 2207d24c2e..52caf788cc 100644
--- a/linux-user/i386/target_cpu.h
+++ b/linux-user/i386/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/i386/target_signal.h b/linux-user/i386/target_signal.h
index f55e78fd33..50361af874 100644
--- a/linux-user/i386/target_signal.h
+++ b/linux-user/i386/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_long ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/i386/target_structs.h b/linux-user/i386/target_structs.h
index 25388a7fd2..e22847fd20 100644
--- a/linux-user/i386/target_structs.h
+++ b/linux-user/i386/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/m68k/target_signal.h b/linux-user/m68k/target_signal.h
index 314e808844..d096544ef8 100644
--- a/linux-user/m68k/target_signal.h
+++ b/linux-user/m68k/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_long ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/main.c b/linux-user/main.c
index 75c9785157..24d1eb73ad 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -386,11 +386,9 @@ static void handle_arg_version(const char *arg)
     exit(EXIT_SUCCESS);
 }
 
-static char *trace_file;
 static void handle_arg_trace(const char *arg)
 {
-    g_free(trace_file);
-    trace_file = trace_opt_parse(arg);
+    trace_opt_parse(arg);
 }
 
 #if defined(TARGET_XTENSA)
@@ -672,7 +670,7 @@ int main(int argc, char **argv, char **envp)
     if (!trace_init_backends()) {
         exit(1);
     }
-    trace_init_file(trace_file);
+    trace_init_file();
     if (qemu_plugin_load_list(&plugins)) {
         exit(1);
     }
diff --git a/linux-user/microblaze/target_cpu.h b/linux-user/microblaze/target_cpu.h
index ce7b22ece7..dcae2ab94b 100644
--- a/linux-user/microblaze/target_cpu.h
+++ b/linux-user/microblaze/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/microblaze/target_signal.h b/linux-user/microblaze/target_signal.h
index 08bcf24b9d..1c326296de 100644
--- a/linux-user/microblaze/target_signal.h
+++ b/linux-user/microblaze/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_ulong ss_size;
-	abi_long ss_flags;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/microblaze/target_structs.h b/linux-user/microblaze/target_structs.h
index 70dbdb6101..d08f6a53a8 100644
--- a/linux-user/microblaze/target_structs.h
+++ b/linux-user/microblaze/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/mips/target_cpu.h b/linux-user/mips/target_cpu.h
index 758ae4d933..c375616c55 100644
--- a/linux-user/mips/target_cpu.h
+++ b/linux-user/mips/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/mips/target_signal.h b/linux-user/mips/target_signal.h
index 66e1ad44a6..fa4084a99d 100644
--- a/linux-user/mips/target_signal.h
+++ b/linux-user/mips/target_signal.h
@@ -45,9 +45,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_long ss_sp;
-	abi_ulong ss_size;
-	abi_long ss_flags;
+    abi_ulong ss_sp;
+    abi_ulong ss_size;
+    abi_int ss_flags;
 } target_stack_t;
 
 
diff --git a/linux-user/mips/target_structs.h b/linux-user/mips/target_structs.h
index 909ba89708..c1150fd9f2 100644
--- a/linux-user/mips/target_structs.h
+++ b/linux-user/mips/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/mips64/target_cpu.h b/linux-user/mips64/target_cpu.h
index f16991b4ef..2857a76afd 100644
--- a/linux-user/mips64/target_cpu.h
+++ b/linux-user/mips64/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/mips64/target_signal.h b/linux-user/mips64/target_signal.h
index 753e91fbd6..799f7a668c 100644
--- a/linux-user/mips64/target_signal.h
+++ b/linux-user/mips64/target_signal.h
@@ -45,12 +45,11 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_long ss_sp;
-	abi_ulong ss_size;
-	abi_int ss_flags;
+    abi_ulong ss_sp;
+    abi_ulong ss_size;
+    abi_int ss_flags;
 } target_stack_t;
 
-
 /*
  * sigaltstack controls
  */
diff --git a/linux-user/nios2/target_cpu.h b/linux-user/nios2/target_cpu.h
index 50f0381067..2d2008f002 100644
--- a/linux-user/nios2/target_cpu.h
+++ b/linux-user/nios2/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/nios2/target_signal.h b/linux-user/nios2/target_signal.h
index fe48721b3d..aebf749f12 100644
--- a/linux-user/nios2/target_signal.h
+++ b/linux-user/nios2/target_signal.h
@@ -4,11 +4,12 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-    abi_long ss_sp;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
     abi_ulong ss_size;
-    abi_long ss_flags;
 } target_stack_t;
 
+
 /* sigaltstack controls  */
 #define TARGET_SS_ONSTACK     1
 #define TARGET_SS_DISABLE     2
diff --git a/linux-user/nios2/target_structs.h b/linux-user/nios2/target_structs.h
index 7145251706..daa2886f98 100644
--- a/linux-user/nios2/target_structs.h
+++ b/linux-user/nios2/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/ppc/target_cpu.h b/linux-user/ppc/target_cpu.h
index 76b67d2882..51ee1481b5 100644
--- a/linux-user/ppc/target_cpu.h
+++ b/linux-user/ppc/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/ppc/target_signal.h b/linux-user/ppc/target_signal.h
index 4453e2e7ef..72fcdd9bfa 100644
--- a/linux-user/ppc/target_signal.h
+++ b/linux-user/ppc/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	int ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/ppc/target_structs.h b/linux-user/ppc/target_structs.h
index 6b1f5791a9..520e32664f 100644
--- a/linux-user/ppc/target_structs.h
+++ b/linux-user/ppc/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/ppc/target_syscall.h b/linux-user/ppc/target_syscall.h
index c461f878f2..b9c4b813d3 100644
--- a/linux-user/ppc/target_syscall.h
+++ b/linux-user/ppc/target_syscall.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/s390x/target_signal.h b/linux-user/s390x/target_signal.h
index b58bc7c20f..bbfc464d44 100644
--- a/linux-user/s390x/target_signal.h
+++ b/linux-user/s390x/target_signal.h
@@ -3,7 +3,7 @@
 
 typedef struct target_sigaltstack {
     abi_ulong ss_sp;
-    int ss_flags;
+    abi_int ss_flags;
     abi_ulong ss_size;
 } target_stack_t;
 
diff --git a/linux-user/s390x/target_structs.h b/linux-user/s390x/target_structs.h
index cadff6db3d..aab716e5a2 100644
--- a/linux-user/s390x/target_structs.h
+++ b/linux-user/s390x/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/sh4/target_signal.h b/linux-user/sh4/target_signal.h
index 434970a990..d7309b7136 100644
--- a/linux-user/sh4/target_signal.h
+++ b/linux-user/sh4/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_long ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/sparc/target_cpu.h b/linux-user/sparc/target_cpu.h
index 14b2158969..1fa1011775 100644
--- a/linux-user/sparc/target_cpu.h
+++ b/linux-user/sparc/target_cpu.h
@@ -7,7 +7,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/sparc/target_signal.h b/linux-user/sparc/target_signal.h
index 5cc40327d2..1b10d1490f 100644
--- a/linux-user/sparc/target_signal.h
+++ b/linux-user/sparc/target_signal.h
@@ -42,9 +42,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_long ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/sparc/target_structs.h b/linux-user/sparc/target_structs.h
index ee24c3b5fc..9953540759 100644
--- a/linux-user/sparc/target_structs.h
+++ b/linux-user/sparc/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/sparc64/target_structs.h b/linux-user/sparc64/target_structs.h
index 1808132b18..4a8ed48df7 100644
--- a/linux-user/sparc64/target_structs.h
+++ b/linux-user/sparc64/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3160a9ba06..27adee908e 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -12590,17 +12590,25 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
         struct epoll_event ep;
         struct epoll_event *epp = 0;
         if (arg4) {
-            struct target_epoll_event *target_ep;
-            if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
-                return -TARGET_EFAULT;
+            if (arg2 != EPOLL_CTL_DEL) {
+                struct target_epoll_event *target_ep;
+                if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
+                    return -TARGET_EFAULT;
+                }
+                ep.events = tswap32(target_ep->events);
+                /*
+                 * The epoll_data_t union is just opaque data to the kernel,
+                 * so we transfer all 64 bits across and need not worry what
+                 * actual data type it is.
+                 */
+                ep.data.u64 = tswap64(target_ep->data.u64);
+                unlock_user_struct(target_ep, arg4, 0);
             }
-            ep.events = tswap32(target_ep->events);
-            /* The epoll_data_t union is just opaque data to the kernel,
-             * so we transfer all 64 bits across and need not worry what
-             * actual data type it is.
+            /*
+             * before kernel 2.6.9, EPOLL_CTL_DEL operation required a
+             * non-null pointer, even though this argument is ignored.
+             *
              */
-            ep.data.u64 = tswap64(target_ep->data.u64);
-            unlock_user_struct(target_ep, arg4, 0);
             epp = &ep;
         }
         return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
diff --git a/linux-user/tilegx/target_cpu.h b/linux-user/tilegx/target_cpu.h
index 316b7a639c..5fa9e2a9a4 100644
--- a/linux-user/tilegx/target_cpu.h
+++ b/linux-user/tilegx/target_cpu.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/tilegx/target_structs.h b/linux-user/tilegx/target_structs.h
index de8b1f2f45..1df000cc96 100644
--- a/linux-user/tilegx/target_structs.h
+++ b/linux-user/tilegx/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
diff --git a/linux-user/x86_64/target_signal.h b/linux-user/x86_64/target_signal.h
index 4c4380f7b9..4ea74f20dd 100644
--- a/linux-user/x86_64/target_signal.h
+++ b/linux-user/x86_64/target_signal.h
@@ -4,9 +4,9 @@
 /* this struct defines a stack used during syscall handling */
 
 typedef struct target_sigaltstack {
-	abi_ulong ss_sp;
-	abi_long ss_flags;
-	abi_ulong ss_size;
+    abi_ulong ss_sp;
+    abi_int ss_flags;
+    abi_ulong ss_size;
 } target_stack_t;
 
 
diff --git a/linux-user/x86_64/target_structs.h b/linux-user/x86_64/target_structs.h
index b6e82a822c..ce367b253b 100644
--- a/linux-user/x86_64/target_structs.h
+++ b/linux-user/x86_64/target_structs.h
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of