f39293fd37
The exception handler subroutines are declared as a single char, but
when copied to the required addresses the copy length is 0x80.
When range checks are enabled for memcpy() this results in a build
failure, with error messages such as:
In file included from arch/mips/mti-malta/malta-init.c:15:
In function 'memcpy',
inlined from 'mips_nmi_setup' at arch/mips/mti-malta/malta-init.c:98:2:
include/linux/string.h:376:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
376 | __read_overflow2();
| ^~~~~~~~~~~~~~~~~~
Change the declarations to use type char[].
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: YunQiang Su <syq@debian.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin, wuzhangjin@gmail.com
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*/
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#include <linux/memblock.h>
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#include <asm/bootinfo.h>
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#include <asm/traps.h>
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#include <asm/smp-ops.h>
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#include <asm/cacheflush.h>
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#include <asm/fw/fw.h>
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#include <loongson.h>
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/* Loongson CPU address windows config space base address */
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unsigned long __maybe_unused _loongson_addrwincfg_base;
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static void __init mips_nmi_setup(void)
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{
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void *base;
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extern char except_vec_nmi[];
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base = (void *)(CAC_BASE + 0x380);
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memcpy(base, except_vec_nmi, 0x80);
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flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
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}
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void __init prom_init(void)
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{
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#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
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_loongson_addrwincfg_base = (unsigned long)
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ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE);
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#endif
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fw_init_cmdline();
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prom_init_machtype();
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prom_init_env();
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/* init base address of io space */
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set_io_port_base((unsigned long)
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ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE));
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prom_init_memory();
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/*init the uart base address */
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prom_init_uart_base();
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board_nmi_handler_setup = mips_nmi_setup;
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}
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void __init prom_free_prom_memory(void)
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{
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}
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