[v4,12/17] bsd-user: Add generic RISC-V64 target definitions

Commit Message

Ajeet Singh Aug. 28, 2024, 9:52 a.m. UTC

From: Warner Losh <[e-mail]>

Added a generic definition for RISC-V64 target-specific details.
Implemented the 'regpairs_aligned' function,which returns 'false'
to indicate that register pairs are not aligned in the RISC-V64 ABI.

Signed-off-by: Warner Losh <[e-mail]>
Signed-off-by: Ajeet Singh <[e-mail]>
Reviewed-by: Richard Henderson <[e-mail]>
---
 bsd-user/riscv/target.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 bsd-user/riscv/target.h

Patch

diff --git a/bsd-user/riscv/target.h b/bsd-user/riscv/target.h
new file mode 100644
index 0000000000..036ddd185e
--- /dev/null
+++ b/bsd-user/riscv/target.h
@@ -0,0 +1,20 @@ 
+/*
+ * Riscv64 general target stuff that's common to all aarch details
+ *
+ * Copyright (c) 2022 M. Warner Losh <[e-mail]>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef TARGET_H
+#define TARGET_H
+
+/*
+ * riscv64 ABI does not 'lump' the registers for 64-bit args.
+ */
+static inline bool regpairs_aligned(void *cpu_env)
+{
+    return false;
+}
+
+#endif /* TARGET_H */