1 files changed, 47 insertions, 0 deletions
diff --git a/include/asm-ppc64/sigcontext.h b/include/asm-ppc64/sigcontext.h
new file mode 100644
index 00000000000..6f8aee768c5
--- /dev/null
+++ b/include/asm-ppc64/sigcontext.h
@@ -0,0 +1,47 @@
+#ifndef _ASM_PPC64_SIGCONTEXT_H
+#define _ASM_PPC64_SIGCONTEXT_H
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/compiler.h>
+#include <asm/ptrace.h>
+#include <asm/elf.h>
+
+
+struct sigcontext {
+	unsigned long	_unused[4];
+	int		signal;
+	int		_pad0;
+	unsigned long	handler;
+	unsigned long	oldmask;
+	struct pt_regs	__user *regs;
+	elf_gregset_t	gp_regs;
+	elf_fpregset_t	fp_regs;
+/*
+ * To maintain compatibility with current implementations the sigcontext is 
+ * extended by appending a pointer (v_regs) to a quadword type (elf_vrreg_t) 
+ * followed by an unstructured (vmx_reserve) field of 69 doublewords.  This 
+ * allows the array of vector registers to be quadword aligned independent of 
+ * the alignment of the containing sigcontext or ucontext. It is the 
+ * responsibility of the code setting the sigcontext to set this pointer to 
+ * either NULL (if this processor does not support the VMX feature) or the 
+ * address of the first quadword within the allocated (vmx_reserve) area.
+ *
+ * The pointer (v_regs) of vector type (elf_vrreg_t) is type compatible with 
+ * an array of 34 quadword entries (elf_vrregset_t).  The entries with 
+ * indexes 0-31 contain the corresponding vector registers.  The entry with 
+ * index 32 contains the vscr as the last word (offset 12) within the 
+ * quadword.  This allows the vscr to be stored as either a quadword (since 
+ * it must be copied via a vector register to/from storage) or as a word.  
+ * The entry with index 33 contains the vrsave as the first word (offset 0) 
+ * within the quadword.
+ */
+	elf_vrreg_t	__user *v_regs;
+	long		vmx_reserve[ELF_NVRREG+ELF_NVRREG+1];
+};
+
+#endif /* _ASM_PPC64_SIGCONTEXT_H */