2020-06-16 13:38:43 +00:00
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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2020-06-15 14:18:57 +00:00
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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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2020-12-28 01:18:44 +00:00
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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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2020-06-15 14:18:57 +00:00
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│ │
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2020-12-28 01:18:44 +00:00
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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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2020-06-15 14:18:57 +00:00
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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2020-06-16 02:01:28 +00:00
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.source __FILE__
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2020-06-15 14:18:57 +00:00
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/ Allocates aligned memory the C++ way.
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/
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2020-12-27 15:02:35 +00:00
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/ \param %rdi is bytes to allocate
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/ \param %rsi is byte alignment
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/ \param %rdx is ignored
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/ \return new memory or NULL on OOM
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2020-06-15 14:18:57 +00:00
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_ZnamSt11align_val_tRKSt9nothrow_t:
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2020-09-03 12:44:37 +00:00
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/ operator new[](unsigned long, std::align_val_t, std::nothrow_t const&)
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2020-06-15 14:18:57 +00:00
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nop
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2020-09-03 12:44:37 +00:00
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn _ZnamSt11align_val_tRKSt9nothrow_t,weak
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2020-06-15 14:18:57 +00:00
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_ZnwmSt11align_val_tRKSt9nothrow_t:
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2020-09-03 12:44:37 +00:00
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/ operator new(unsigned long, std::align_val_t, std::nothrow_t const&)
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2020-06-15 14:18:57 +00:00
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nop
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2020-09-03 12:44:37 +00:00
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn _ZnwmSt11align_val_tRKSt9nothrow_t,weak
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2020-06-15 14:18:57 +00:00
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_ZnwmSt11align_val_t:
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2020-09-03 12:44:37 +00:00
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/ operator new(unsigned long, std::align_val_t)
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2020-06-15 14:18:57 +00:00
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nop
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2020-09-03 12:44:37 +00:00
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/ 𝑠𝑙𝑖𝑑𝑒
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.endfn _ZnwmSt11align_val_t,weak
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2020-06-15 14:18:57 +00:00
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_ZnamSt11align_val_t:
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2020-09-03 12:44:37 +00:00
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/ operator new[](unsigned long, std::align_val_t)
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2020-06-15 14:18:57 +00:00
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test %rdi,%rdi
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jnz 1f
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mov $1,%eax
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1: mov $__BIGGEST_ALIGNMENT__,%eax
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cmp %rax,%rsi
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cmovb %rax,%rsi
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xchg %rdi,%rsi
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jmp *hook$memalign(%rip)
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2020-09-03 12:44:37 +00:00
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.endfn _ZnamSt11align_val_t,weak
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