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-rw-r--r--qemu/linux-user/aarch64/target_cpu.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/qemu/linux-user/aarch64/target_cpu.h b/qemu/linux-user/aarch64/target_cpu.h
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index 000000000..b5593dc5a
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+++ b/qemu/linux-user/aarch64/target_cpu.h
@@ -0,0 +1,38 @@
+/*
+ * ARM AArch64 specific CPU ABI and functions for linux-user
+ *
+ * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
+ *
+ * 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_CPU_H
+#define TARGET_CPU_H
+
+static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp)
+{
+ if (newsp) {
+ env->xregs[31] = newsp;
+ }
+ env->xregs[0] = 0;
+}
+
+static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
+{
+ /* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is
+ * different from AArch32 Linux, which uses TPIDRRO.
+ */
+ env->cp15.tpidr_el[0] = newtls;
+}
+
+#endif