8 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/bits/signal.h b/arch/arm/bits/signal.h
index a658ef63..6d91f70f 100644
--- a/arch/arm/bits/signal.h
+++ b/arch/arm/bits/signal.h
@@ -27,6 +27,12 @@ typedef struct __ucontext {
 	unsigned long long uc_regspace[64];
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  2
 #define SA_SIGINFO    4
diff --git a/arch/i386/bits/signal.h b/arch/i386/bits/signal.h
index 75844e5b..7d8d1871 100644
--- a/arch/i386/bits/signal.h
+++ b/arch/i386/bits/signal.h
@@ -62,6 +62,12 @@ typedef struct __ucontext {
 	unsigned long __fpregs_mem[28];
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  2
 #define SA_SIGINFO    4
diff --git a/arch/microblaze/bits/signal.h b/arch/microblaze/bits/signal.h
index ba711c8c..730ab90b 100644
--- a/arch/microblaze/bits/signal.h
+++ b/arch/microblaze/bits/signal.h
@@ -29,6 +29,12 @@ typedef struct __ucontext {
 	sigset_t uc_sigmask;
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  2
 #define SA_SIGINFO    4
diff --git a/arch/mips/bits/signal.h b/arch/mips/bits/signal.h
index f26c37da..d09558fe 100644
--- a/arch/mips/bits/signal.h
+++ b/arch/mips/bits/signal.h
@@ -46,6 +46,12 @@ typedef struct __ucontext {
 	sigset_t uc_sigmask;
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  0x10000
 #define SA_SIGINFO    8
diff --git a/arch/powerpc/bits/signal.h b/arch/powerpc/bits/signal.h
index c073cd21..7113b2ff 100644
--- a/arch/powerpc/bits/signal.h
+++ b/arch/powerpc/bits/signal.h
@@ -60,6 +60,12 @@ typedef struct __ucontext {
 	mcontext_t uc_mcontext;
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1U
 #define SA_NOCLDWAIT  2U
 #define SA_SIGINFO    4U
diff --git a/arch/sh/bits/signal.h b/arch/sh/bits/signal.h
index 905ae3ac..bb2b9fc5 100644
--- a/arch/sh/bits/signal.h
+++ b/arch/sh/bits/signal.h
@@ -27,6 +27,12 @@ typedef struct __ucontext {
 	sigset_t uc_sigmask;
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  2
 #define SA_SIGINFO    4
diff --git a/arch/x32/bits/signal.h b/arch/x32/bits/signal.h
index ecbb8139..67056c9e 100644
--- a/arch/x32/bits/signal.h
+++ b/arch/x32/bits/signal.h
@@ -69,6 +69,12 @@ typedef struct __ucontext {
 	unsigned long long __fpregs_mem[64];
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  2
 #define SA_SIGINFO    4
diff --git a/arch/x86_64/bits/signal.h b/arch/x86_64/bits/signal.h
index d5f01ced..910e4ecb 100644
--- a/arch/x86_64/bits/signal.h
+++ b/arch/x86_64/bits/signal.h
@@ -69,6 +69,12 @@ typedef struct __ucontext {
 	unsigned long __fpregs_mem[64];
 } ucontext_t;
 
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
 #define SA_NOCLDSTOP  1
 #define SA_NOCLDWAIT  2
 #define SA_SIGINFO    4