bc54e50e0f
After the recent update of CompilerIntrinsicsLib, our memset() is no longer emitted as a weak symbol. On ARM, this may cause problems when combining this library with another library that supplies memset() [e.g., CryptoPkg/IntrinsicLib], due to the fact that the object also supplies the __aeabi_memXXX entry points, which can only be satisfied by this object. So make our memset() weak again, to let the other implementation take precedence. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
//------------------------------------------------------------------------------
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//
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// Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
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//
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// This program and the accompanying materials are licensed and made
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// available under the terms and conditions of the BSD License which
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// accompanies this distribution. The full text of the license may be
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// found at http://opensource.org/licenses/bsd-license.php
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//
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// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
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// IMPLIED.
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//
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//------------------------------------------------------------------------------
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typedef __SIZE_TYPE__ size_t;
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static __attribute__((__used__))
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void *__memset(void *s, int c, size_t n)
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{
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unsigned char *d = s;
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while (n--)
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*d++ = c;
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return s;
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}
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__attribute__((__alias__("__memset")))
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void *memset(void *dest, int c, size_t n);
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#ifdef __arm__
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//
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// Other modules (such as CryptoPkg/IntrinsicLib) may provide another
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// implementation of memset(), which may conflict with this one if this
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// object was pulled into the link due to the definitions below. So make
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// our memset() 'weak' to let the other implementation take precedence.
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//
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__attribute__((__weak__))
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void *memset(void *dest, int c, size_t n);
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void __aeabi_memset(void *dest, size_t n, int c)
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{
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__memset(dest, c, n);
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}
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__attribute__((__alias__("__aeabi_memset")))
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void __aeabi_memset4(void *dest, size_t n, int c);
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__attribute__((__alias__("__aeabi_memset")))
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void __aeabi_memset8(void *dest, size_t n, int c);
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void __aeabi_memclr(void *dest, size_t n)
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{
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__memset(dest, 0, n);
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}
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__attribute__((__alias__("__aeabi_memclr")))
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void __aeabi_memclr4(void *dest, size_t n);
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__attribute__((__alias__("__aeabi_memclr")))
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void __aeabi_memclr8(void *dest, size_t n);
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#endif
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