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Diffstat (limited to 'kernel/arch/s390/include/uapi/asm/ucontext.h')
-rw-r--r--kernel/arch/s390/include/uapi/asm/ucontext.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/arch/s390/include/uapi/asm/ucontext.h b/kernel/arch/s390/include/uapi/asm/ucontext.h
new file mode 100644
index 000000000..64a69aa5d
--- /dev/null
+++ b/kernel/arch/s390/include/uapi/asm/ucontext.h
@@ -0,0 +1,40 @@
+/*
+ * S390 version
+ *
+ * Derived from "include/asm-i386/ucontext.h"
+ */
+
+#ifndef _ASM_S390_UCONTEXT_H
+#define _ASM_S390_UCONTEXT_H
+
+#define UC_GPRS_HIGH 1 /* uc_mcontext_ext has valid high gprs */
+#define UC_VXRS 2 /* uc_mcontext_ext has valid vector regs */
+
+/*
+ * The struct ucontext_extended describes how the registers are stored
+ * on a rt signal frame. Please note that the structure is not fixed,
+ * if new CPU registers are added to the user state the size of the
+ * struct ucontext_extended will increase.
+ */
+struct ucontext_extended {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ _sigregs uc_mcontext;
+ sigset_t uc_sigmask;
+ /* Allow for uc_sigmask growth. Glibc uses a 1024-bit sigset_t. */
+ unsigned char __unused[128 - sizeof(sigset_t)];
+ _sigregs_ext uc_mcontext_ext;
+};
+
+struct ucontext {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ _sigregs uc_mcontext;
+ sigset_t uc_sigmask;
+ /* Allow for uc_sigmask growth. Glibc uses a 1024-bit sigset_t. */
+ unsigned char __unused[128 - sizeof(sigset_t)];
+};
+
+#endif /* !_ASM_S390_UCONTEXT_H */