test/svc: add test for thread create

tests/TestSvc/source/test_thread_creation.arch.arm64.s

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* ams::test::TestThreadCreateRegistersOnFunctionEntry(void *ctx) */
+.section    .text._ZN3ams4test40TestThreadCreateRegistersOnFunctionEntryEPv, "ax", %progbits
+.global     _ZN3ams4test40TestThreadCreateRegistersOnFunctionEntryEPv
+.type       _ZN3ams4test40TestThreadCreateRegistersOnFunctionEntryEPv, %function
+_ZN3ams4test40TestThreadCreateRegistersOnFunctionEntryEPv:
+    /* Save all registers to our context. */
+    stp  x0,  x1, [x0, #0x00]
+    stp  x2,  x3, [x0, #0x10]
+    stp  x4,  x5, [x0, #0x20]
+    stp  x6,  x7, [x0, #0x30]
+    stp  x8,  x9, [x0, #0x40]
+    stp x10, x11, [x0, #0x50]
+    stp x12, x13, [x0, #0x60]
+    stp x14, x15, [x0, #0x70]
+    stp x16, x17, [x0, #0x80]
+    stp x18, x19, [x0, #0x90]
+    stp x20, x21, [x0, #0xA0]
+    stp x22, x23, [x0, #0xB0]
+    stp x24, x25, [x0, #0xC0]
+    stp x26, x27, [x0, #0xD0]
+    stp x28, x29, [x0, #0xE0]
+
+    mov x1, sp
+    stp x30, x1, [x0, #0xF0]
+
+    /* Exit the thread. */
+    svc     0xa