Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h
new file mode 100644
index 000000000..d8bfa98fc
--- /dev/null
+++ b/arch/x86/include/asm/uprobes.h
@@ -0,0 +1,71 @@
+#ifndef _ASM_UPROBES_H
+#define _ASM_UPROBES_H
+/*
+ * User-space Probes (UProbes) for x86
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2008-2011
+ * Authors:
+ *	Srikar Dronamraju
+ *	Jim Keniston
+ */
+
+#include <linux/notifier.h>
+
+typedef u8 uprobe_opcode_t;
+
+#define MAX_UINSN_BYTES			  16
+#define UPROBE_XOL_SLOT_BYTES		 128	/* to keep it cache aligned */
+
+#define UPROBE_SWBP_INSN		0xcc
+#define UPROBE_SWBP_INSN_SIZE		   1
+
+struct uprobe_xol_ops;
+
+struct arch_uprobe {
+	union {
+		u8			insn[MAX_UINSN_BYTES];
+		u8			ixol[MAX_UINSN_BYTES];
+	};
+
+	const struct uprobe_xol_ops	*ops;
+
+	union {
+		struct {
+			s32	offs;
+			u8	ilen;
+			u8	opc1;
+		}			branch;
+		struct {
+			u8	fixups;
+			u8	ilen;
+		} 			defparam;
+		struct {
+			u8	reg_offset;	/* to the start of pt_regs */
+			u8	ilen;
+		}			push;
+	};
+};
+
+struct arch_uprobe_task {
+#ifdef CONFIG_X86_64
+	unsigned long			saved_scratch_register;
+#endif
+	unsigned int			saved_trap_nr;
+	unsigned int			saved_tf;
+};
+
+#endif	/* _ASM_UPROBES_H */