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Diffstat (limited to 'arch/riscv/include/asm/uprobes.h')
-rw-r--r--arch/riscv/include/asm/uprobes.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/uprobes.h b/arch/riscv/include/asm/uprobes.h
new file mode 100644
index 000000000000..f2183e00fdd2
--- /dev/null
+++ b/arch/riscv/include/asm/uprobes.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _ASM_RISCV_UPROBES_H
+#define _ASM_RISCV_UPROBES_H
+
+#include <asm/probes.h>
+#include <asm/patch.h>
+#include <asm/bug.h>
+
+#define MAX_UINSN_BYTES 8
+
+#ifdef CONFIG_RISCV_ISA_C
+#define UPROBE_SWBP_INSN __BUG_INSN_16
+#define UPROBE_SWBP_INSN_SIZE 2
+#else
+#define UPROBE_SWBP_INSN __BUG_INSN_32
+#define UPROBE_SWBP_INSN_SIZE 4
+#endif
+#define UPROBE_XOL_SLOT_BYTES MAX_UINSN_BYTES
+
+typedef u32 uprobe_opcode_t;
+
+struct arch_uprobe_task {
+ unsigned long saved_cause;
+};
+
+struct arch_uprobe {
+ union {
+ u8 insn[MAX_UINSN_BYTES];
+ u8 ixol[MAX_UINSN_BYTES];
+ };
+ struct arch_probe_insn api;
+ unsigned long insn_size;
+ bool simulate;
+};
+
+bool uprobe_breakpoint_handler(struct pt_regs *regs);
+bool uprobe_single_step_handler(struct pt_regs *regs);
+
+#endif /* _ASM_RISCV_UPROBES_H */