1 files changed, 64 insertions, 0 deletions
diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
new file mode 100644
index 0000000000..3c400fc7e9
--- /dev/null
+++ b/arch/s390/kernel/compat_ptrace.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PTRACE32_H
+#define _PTRACE32_H
+
+#include <asm/ptrace.h>    /* needed for NUM_CR_WORDS */
+#include "compat_linux.h"  /* needed for psw_compat_t */
+
+struct compat_per_struct_kernel {
+	__u32 cr9;		/* PER control bits */
+	__u32 cr10;		/* PER starting address */
+	__u32 cr11;		/* PER ending address */
+	__u32 bits;		/* Obsolete software bits */
+	__u32 starting_addr;	/* User specified start address */
+	__u32 ending_addr;	/* User specified end address */
+	__u16 perc_atmid;	/* PER trap ATMID */
+	__u32 address;		/* PER trap instruction address */
+	__u8  access_id;	/* PER trap access identification */
+};
+
+struct compat_user_regs_struct
+{
+	psw_compat_t psw;
+	u32 gprs[NUM_GPRS];
+	u32 acrs[NUM_ACRS];
+	u32 orig_gpr2;
+	/* nb: there's a 4-byte hole here */
+	s390_fp_regs fp_regs;
+	/*
+	 * These per registers are in here so that gdb can modify them
+	 * itself as there is no "official" ptrace interface for hardware
+	 * watchpoints. This is the way intel does it.
+	 */
+	struct compat_per_struct_kernel per_info;
+	u32  ieee_instruction_pointer;	/* obsolete, always 0 */
+};
+
+struct compat_user {
+	/* We start with the registers, to mimic the way that "memory"
+	   is returned from the ptrace(3,...) function.  */
+	struct compat_user_regs_struct regs;
+	/* The rest of this junk is to help gdb figure out what goes where */
+	u32 u_tsize;		/* Text segment size (pages). */
+	u32 u_dsize;	        /* Data segment size (pages). */
+	u32 u_ssize;	        /* Stack segment size (pages). */
+	u32 start_code;         /* Starting virtual address of text. */
+	u32 start_stack;	/* Starting virtual address of stack area.
+				   This is actually the bottom of the stack,
+				   the top of the stack is always found in the
+				   esp register.  */
+	s32 signal;     	 /* Signal that caused the core dump. */
+	u32 u_ar0;               /* Used by gdb to help find the values for */
+	                         /* the registers. */
+	u32 magic;		 /* To uniquely identify a core file */
+	char u_comm[32];	 /* User command that was responsible */
+};
+
+typedef struct
+{
+	__u32   len;
+	__u32   kernel_addr;
+	__u32   process_addr;
+} compat_ptrace_area;
+
+#endif /* _PTRACE32_H */