summaryrefslogtreecommitdiffstats
path: root/arch/sparc/include/asm/uprobes.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc/include/asm/uprobes.h')
-rw-r--r--arch/sparc/include/asm/uprobes.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/uprobes.h b/arch/sparc/include/asm/uprobes.h
new file mode 100644
index 0000000000..79938fb940
--- /dev/null
+++ b/arch/sparc/include/asm/uprobes.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_UPROBES_H
+#define _ASM_UPROBES_H
+/*
+ * User-space Probes (UProbes) for sparc
+ *
+ * Copyright (C) 2013 Oracle, Inc.
+ *
+ * Authors:
+ * Jose E. Marchesi <jose.marchesi@oracle.com>
+ * Eric Saint Etienne <eric.saint.etienne@oracle.com>
+ */
+
+typedef u32 uprobe_opcode_t;
+
+#define MAX_UINSN_BYTES 4
+#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2)
+
+#define UPROBE_SWBP_INSN_SIZE 4
+#define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */
+#define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */
+
+#define ANNUL_BIT (1 << 29)
+
+struct arch_uprobe {
+ union {
+ u8 insn[MAX_UINSN_BYTES];
+ u32 ixol;
+ };
+};
+
+struct arch_uprobe_task {
+ u64 saved_tpc;
+ u64 saved_tnpc;
+};
+
+struct task_struct;
+struct notifier_block;
+
+extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr);
+extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
+extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
+extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+
+#endif /* _ASM_UPROBES_H */