os_Linux_x86_64.s (2065B)
1 // -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 // 3 // This Source Code Form is subject to the terms of the Mozilla Public 4 // License, v. 2.0. If a copy of the MPL was not distributed with this 5 // file, You can obtain one at http://mozilla.org/MPL/2.0/. 6 7 // PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val) 8 // 9 // Atomically increment the integer pointed to by 'val' and return 10 // the result of the increment. 11 // 12 .text 13 .globl _PR_x86_64_AtomicIncrement 14 .type _PR_x86_64_AtomicIncrement, @function 15 .align 4 16 _PR_x86_64_AtomicIncrement: 17 movl $1, %eax 18 lock 19 xaddl %eax, (%rdi) 20 incl %eax 21 ret 22 .size _PR_x86_64_AtomicIncrement, .-_PR_x86_64_AtomicIncrement 23 24 // PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val) 25 // 26 // Atomically decrement the integer pointed to by 'val' and return 27 // the result of the decrement. 28 // 29 .text 30 .globl _PR_x86_64_AtomicDecrement 31 .type _PR_x86_64_AtomicDecrement, @function 32 .align 4 33 _PR_x86_64_AtomicDecrement: 34 movl $-1, %eax 35 lock 36 xaddl %eax, (%rdi) 37 decl %eax 38 ret 39 .size _PR_x86_64_AtomicDecrement, .-_PR_x86_64_AtomicDecrement 40 41 // PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval) 42 // 43 // Atomically set the integer pointed to by 'val' to the new 44 // value 'newval' and return the old value. 45 // 46 .text 47 .globl _PR_x86_64_AtomicSet 48 .type _PR_x86_64_AtomicSet, @function 49 .align 4 50 _PR_x86_64_AtomicSet: 51 movl %esi, %eax 52 xchgl %eax, (%rdi) 53 ret 54 .size _PR_x86_64_AtomicSet, .-_PR_x86_64_AtomicSet 55 56 // PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val) 57 // 58 // Atomically add 'val' to the integer pointed to by 'ptr' 59 // and return the result of the addition. 60 // 61 .text 62 .globl _PR_x86_64_AtomicAdd 63 .type _PR_x86_64_AtomicAdd, @function 64 .align 4 65 _PR_x86_64_AtomicAdd: 66 movl %esi, %eax 67 lock 68 xaddl %eax, (%rdi) 69 addl %esi, %eax 70 ret 71 .size _PR_x86_64_AtomicAdd, .-_PR_x86_64_AtomicAdd 72 73 // Magic indicating no need for an executable stack 74 .section .note.GNU-stack, "", @progbits