On 6/17/24 11:57, Ajeet Singh wrote:
From: Stacey Son <s...@freebsd.org>
Defined register indices and sizes,introduced structures to represent
general purpose registers, floating point registers, and machine context
Signed-off-by: Stacey Son <s...@freebsd.org>
Signed-off-by: Warner Losh <i...@bsdimp.com>
Signed-off-by: Ajeet Singh <itac...@freebsd.org>
Co-authored-by: Warner Losh <i...@bsdimp.com>
---
bsd-user/aarch64/target_arch_signal.h | 80 +++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
create mode 100644 bsd-user/aarch64/target_arch_signal.h
diff --git a/bsd-user/aarch64/target_arch_signal.h
b/bsd-user/aarch64/target_arch_signal.h
new file mode 100644
index 0000000000..df17173316
--- /dev/null
+++ b/bsd-user/aarch64/target_arch_signal.h
@@ -0,0 +1,80 @@
+/*
+ * ARM AArch64 specific signal definitions for bsd-user
+ *
+ * Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TARGET_ARCH_SIGNAL_H
+#define TARGET_ARCH_SIGNAL_H
+
+#include "cpu.h"
+
+#define TARGET_REG_X0 0
+#define TARGET_REG_X30 30
+#define TARGET_REG_X31 31
+#define TARGET_REG_LR TARGET_REG_X30
+#define TARGET_REG_SP TARGET_REG_X31
+
+#define TARGET_INSN_SIZE 4 /* arm64 instruction size */
+
+/* Size of the signal trampolin code. See _sigtramp(). */
+#define TARGET_SZSIGCODE ((abi_ulong)(9 * TARGET_INSN_SIZE))
+
+/* compare to sys/arm64/include/_limits.h */
+#define TARGET_MINSIGSTKSZ (1024 * 4) /* min sig stack size
*/
+#define TARGET_SIGSTKSZ (TARGET_MINSIGSTKSZ + 32768) /* recommended size
*/
+
+/* struct __mcontext in sys/arm64/include/ucontext.h */
+
+struct target_gpregs {
+ uint64_t gp_x[30];
+ uint64_t gp_lr;
+ uint64_t gp_sp;
+ uint64_t gp_elr;
+ uint32_t gp_spsr;
+ uint32_t gp_pad;
+};
+
+struct target_fpregs {
+ __uint128_t fp_q[32];
Per patch 6, re not using __uint128_t directly.
r~
