1 files changed, 61 insertions, 0 deletions
diff --git a/bsd-user/aarch64/target_arch_thread.h b/bsd-user/aarch64/target_arch_thread.h
new file mode 100644
index 0000000000..4c911e605a
--- /dev/null
+++ b/bsd-user/aarch64/target_arch_thread.h
@@ -0,0 +1,61 @@
+/*
+ * ARM AArch64 thread support 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_THREAD_H
+#define TARGET_ARCH_THREAD_H
+
+/* Compare to arm64/arm64/vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUARMState *regs, abi_ulong entry,
+    abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    abi_ulong sp;
+
+    /*
+     * Make sure the stack is properly aligned.
+     * arm64/include/param.h (STACKLIGN() macro)
+     */
+    sp = ROUND_DOWN(stack_base + stack_size, 16);
+
+    /* sp = stack base */
+    regs->xregs[31] = sp;
+    /* pc = start function entry */
+    regs->pc = entry;
+    /* r0 = arg */
+    regs->xregs[0] = arg;
+
+    
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+    abi_long stack = infop->start_stack;
+
+    /*
+     * Make sure the stack is properly aligned.
+     * arm64/include/param.h (STACKLIGN() macro)
+     */
+
+    memset(regs, 0, sizeof(*regs));
+    regs->regs[0] = infop->start_stack;
+    regs->pc = infop->entry;
+    regs->sp = ROUND_DOWN(stack, 16);
+}
+
+#endif /* TARGET_ARCH_THREAD_H */