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dd8486ffc1
If libc_hidden_builtin_{def,proto} isn't properly set for *_chk routines,
there are unwanted PLT entries in libc.so.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/* Copy memory to memory until the specified number of bytes
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has been copied with error checking. Overlap is NOT handled correctly.
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Copyright (C) 1991-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <string.h>
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#include <memcopy.h>
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void *
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__memcpy_chk (void *dstpp, const void *srcpp, size_t len, size_t dstlen)
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{
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if (__glibc_unlikely (dstlen < len))
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__chk_fail ();
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return memcpy (dstpp, srcpp, len);
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}
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libc_hidden_builtin_def (__memcpy_chk)
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