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  /prebuilts/ndk/r11/platforms/android-8/arch-arm/usr/include/asm/
locks.h 19 #define __down_op_ret(ptr,fail) ({ unsigned int ret; __asm__ __volatile__( "@ down_op_ret\n" "1: ldrex lr, [%1]\n" " sub lr, lr, %2\n" " strex ip, lr, [%1]\n" " teq ip, #0\n" " bne 1b\n" " teq lr, #0\n" " movmi ip, %1\n" " movpl ip, #0\n" " blmi " #fail "\n" " mov %0, ip" : "=&r" (ret) : "r" (ptr), "I" (1) : "ip", "lr", "cc"); smp_mb(); ret; }) macro
38 #define __down_op_ret(ptr,fail) ({ unsigned int ret; __asm__ __volatile__( "@ down_op_ret\n" " mrs ip, cpsr\n" " orr lr, ip, #128\n" " msr cpsr_c, lr\n" " ldr lr, [%1]\n" " subs lr, lr, %2\n" " str lr, [%1]\n" " msr cpsr_c, ip\n" " movmi ip, %1\n" " movpl ip, #0\n" " blmi " #fail "\n" " mov %0, ip" : "=&r" (ret) : "r" (ptr), "I" (1) : "ip", "lr", "cc"); smp_mb(); ret; }) macro
  /prebuilts/ndk/r11/platforms/android-9/arch-arm/usr/include/asm/
locks.h 19 #define __down_op_ret(ptr,fail) ({ unsigned int ret; __asm__ __volatile__( "@ down_op_ret\n" "1: ldrex lr, [%1]\n" " sub lr, lr, %2\n" " strex ip, lr, [%1]\n" " teq ip, #0\n" " bne 1b\n" " teq lr, #0\n" " movmi ip, %1\n" " movpl ip, #0\n" " blmi " #fail "\n" " mov %0, ip" : "=&r" (ret) : "r" (ptr), "I" (1) : "ip", "lr", "cc"); smp_mb(); ret; }) macro
38 #define __down_op_ret(ptr,fail) ({ unsigned int ret; __asm__ __volatile__( "@ down_op_ret\n" " mrs ip, cpsr\n" " orr lr, ip, #128\n" " msr cpsr_c, lr\n" " ldr lr, [%1]\n" " subs lr, lr, %2\n" " str lr, [%1]\n" " msr cpsr_c, ip\n" " movmi ip, %1\n" " movpl ip, #0\n" " blmi " #fail "\n" " mov %0, ip" : "=&r" (ret) : "r" (ptr), "I" (1) : "ip", "lr", "cc"); smp_mb(); ret; }) macro

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