23 lines
514 B
ArmAsm
23 lines
514 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2022 Ventana Micro Systems Inc.
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*/
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#include <asm/asm.h>
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#include <linux/linkage.h>
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.pushsection .text.smh_trap, "ax"
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ENTRY(smh_trap)
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.align 4 /* keep slli, ebreak, srai in same page */
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.option push
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.option norvc /* semihosting sequence must be 32-bit wide */
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slli zero, zero, 0x1f /* Entry NOP to identify semihosting */
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ebreak
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srai zero, zero, 7 /* NOP encoding of semihosting call number */
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.option pop
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ret
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ENDPROC(smh_trap)
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.popsection
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