75 lines
2.0 KiB
ArmAsm
75 lines
2.0 KiB
ArmAsm
// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val)
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//
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// Atomically increment the integer pointed to by 'val' and return
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// the result of the increment.
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//
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.text
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.globl _PR_x86_64_AtomicIncrement
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.type _PR_x86_64_AtomicIncrement, @function
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.align 4
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_PR_x86_64_AtomicIncrement:
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movl $1, %eax
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lock
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xaddl %eax, (%rdi)
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incl %eax
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ret
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.size _PR_x86_64_AtomicIncrement, .-_PR_x86_64_AtomicIncrement
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// PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val)
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//
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// Atomically decrement the integer pointed to by 'val' and return
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// the result of the decrement.
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//
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.text
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.globl _PR_x86_64_AtomicDecrement
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.type _PR_x86_64_AtomicDecrement, @function
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.align 4
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_PR_x86_64_AtomicDecrement:
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movl $-1, %eax
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lock
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xaddl %eax, (%rdi)
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decl %eax
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ret
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.size _PR_x86_64_AtomicDecrement, .-_PR_x86_64_AtomicDecrement
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// PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval)
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//
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// Atomically set the integer pointed to by 'val' to the new
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// value 'newval' and return the old value.
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//
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.text
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.globl _PR_x86_64_AtomicSet
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.type _PR_x86_64_AtomicSet, @function
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.align 4
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_PR_x86_64_AtomicSet:
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movl %esi, %eax
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xchgl %eax, (%rdi)
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ret
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.size _PR_x86_64_AtomicSet, .-_PR_x86_64_AtomicSet
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// PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val)
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//
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// Atomically add 'val' to the integer pointed to by 'ptr'
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// and return the result of the addition.
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//
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.text
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.globl _PR_x86_64_AtomicAdd
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.type _PR_x86_64_AtomicAdd, @function
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.align 4
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_PR_x86_64_AtomicAdd:
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movl %esi, %eax
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lock
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xaddl %eax, (%rdi)
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addl %esi, %eax
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ret
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.size _PR_x86_64_AtomicAdd, .-_PR_x86_64_AtomicAdd
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// Magic indicating no need for an executable stack
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.section .note.GNU-stack, "", @progbits
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