39 lines
2.6 KiB
ArmAsm
39 lines
2.6 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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#include "libc/notice.inc"
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.source __FILE__
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/ Resizes the space allocated for p to size n, only if this can be
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/ done without moving p (i.e., only if there is adjacent space
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/ available if n is greater than p's current allocated size, or n
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/ is less than or equal to p's size). This may be used instead of
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/ plain realloc if an alternative allocation strategy is needed
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/ upon failure to expand space, for example, reallocation of a
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/ buffer that must be memory-aligned or cleared. You can use
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/ realloc_in_place to trigger these alternatives only when needed.
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/
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/ @param rdi (p) is address of current allocation
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/ @param rsi (newsize) is number of bytes needed
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/ @return rax is result, or NULL w/ errno
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/ @see dlrealloc_in_place()
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realloc_in_place:
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jmp *hook$realloc_in_place(%rip)
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.endfn realloc_in_place,globl
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