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-rw-r--r--lib/libutee/arch/arm/utee_syscalls_a32.S58
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diff --git a/lib/libutee/arch/arm/utee_syscalls_a32.S b/lib/libutee/arch/arm/utee_syscalls_a32.S
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+/*
+ * Copyright (c) 2015, Linaro Limited
+ * Copyright (c) 2014, STMicroelectronics International N.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <tee_syscall_numbers.h>
+#include <asm.S>
+
+ .section .text
+ .balign 4
+ .code 32
+
+ .macro UTEE_SYSCALL name, scn, num_args
+ FUNC \name , :
+
+ push {r5-r7,lr}
+ mov r7, #(\scn)
+ .if \num_args > TEE_SVC_MAX_ARGS
+ .error "Too many arguments for syscall"
+ .endif
+ .if \num_args <= 4
+ @ No arguments passed on stack
+ mov r6, #0
+ .else
+ @ Tell number of arguments passed on the stack
+ mov r6, #(\num_args - 4)
+ @ Point just before the push (4 registers) above on the first argument
+ add r5, sp, #(4 * 4)
+ .endif
+ svc #0
+ pop {r5-r7,pc}
+ END_FUNC \name
+ .endm
+
+#include "utee_syscalls_asm.S"