[Lldb-commits] [lldb] [llvm] [lldb][Process/FreeBSD] Add riscv64 support (PR #180549)

[Minsoo Choo via lldb-commits]

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@@ -0,0 +1,559 @@
+//===-- NativeRegisterContextFreeBSD_riscv64.cpp --------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#if defined(__riscv) && __riscv_xlen == 64
+
+#include "NativeRegisterContextFreeBSD_riscv64.h"
+
+#include "lldb/Utility/DataBufferHeap.h"
+#include "lldb/Utility/RegisterValue.h"
+#include "lldb/Utility/Status.h"
+
+#include "Plugins/Process/FreeBSD/NativeProcessFreeBSD.h"
+#include "Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h"
+
+// clang-format off
+#include <sys/param.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+// clang-format on
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::process_freebsd;
+
+// Translation between RegisterInfoPosix_riscv64 and reg.h
+// https://github.com/freebsd/freebsd-src/blob/main/sys/riscv/include/reg.h:
+//
+// struct reg {
+// 	__uint64_t	ra;		/* return address */
+// 	__uint64_t	sp;		/* stack pointer */
+// 	__uint64_t	gp;		/* global pointer */
+// 	__uint64_t	tp;		/* thread pointer */
+// 	__uint64_t	t[7];		/* temporaries */
+// 	__uint64_t	s[12];		/* saved registers */
+// 	__uint64_t	a[8];		/* function arguments */
+// 	__uint64_t	sepc;		/* exception program counter */
+// 	__uint64_t	sstatus;	/* status register */
+// };
+//
+// struct fpreg {
+// 	__uint64_t	fp_x[32][2];	/* Floating point registers */
+// 	__uint64_t	fp_fcsr;	/* Floating point control reg */
+// };
+//
+// struct dbreg {
+// 	int dummy;
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mchoo7 wrote:

https://github.com/llvm/llvm-project/blob/main/lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h#L30

https://github.com/llvm/llvm-project/pull/180549