// // Generated with: // gcc -g threads-v0.c -lpthread // objdump --source threads-v0 // threads-v0: file format elf64-x86-64 Disassembly of section .init: 00000000004007e0 <_init>: _init(): 4007e0: 48 83 ec 08 sub $0x8,%rsp 4007e4: 48 8b 05 0d 18 20 00 mov 0x20180d(%rip),%rax # 601ff8 <_DYNAMIC+0x1e0> 4007eb: 48 85 c0 test %rax,%rax 4007ee: 74 05 je 4007f5 <_init+0x15> 4007f0: e8 fb 00 00 00 callq 4008f0 4007f5: 48 83 c4 08 add $0x8,%rsp 4007f9: c3 retq Disassembly of section .plt: 0000000000400800 : 400800: ff 35 02 18 20 00 pushq 0x201802(%rip) # 602008 <_GLOBAL_OFFSET_TABLE_+0x8> 400806: ff 25 04 18 20 00 jmpq *0x201804(%rip) # 602010 <_GLOBAL_OFFSET_TABLE_+0x10> 40080c: 0f 1f 40 00 nopl 0x0(%rax) 0000000000400810 : 400810: ff 25 02 18 20 00 jmpq *0x201802(%rip) # 602018 <_GLOBAL_OFFSET_TABLE_+0x18> 400816: 68 00 00 00 00 pushq $0x0 40081b: e9 e0 ff ff ff jmpq 400800 <_init+0x20> 0000000000400820 <__stack_chk_fail@plt>: 400820: ff 25 fa 17 20 00 jmpq *0x2017fa(%rip) # 602020 <_GLOBAL_OFFSET_TABLE_+0x20> 400826: 68 01 00 00 00 pushq $0x1 40082b: e9 d0 ff ff ff jmpq 400800 <_init+0x20> 0000000000400830 : 400830: ff 25 f2 17 20 00 jmpq *0x2017f2(%rip) # 602028 <_GLOBAL_OFFSET_TABLE_+0x28> 400836: 68 02 00 00 00 pushq $0x2 40083b: e9 c0 ff ff ff jmpq 400800 <_init+0x20> 0000000000400840 : 400840: ff 25 ea 17 20 00 jmpq *0x2017ea(%rip) # 602030 <_GLOBAL_OFFSET_TABLE_+0x30> 400846: 68 03 00 00 00 pushq $0x3 40084b: e9 b0 ff ff ff jmpq 400800 <_init+0x20> 0000000000400850 <__assert_fail@plt>: 400850: ff 25 e2 17 20 00 jmpq *0x2017e2(%rip) # 602038 <_GLOBAL_OFFSET_TABLE_+0x38> 400856: 68 04 00 00 00 pushq $0x4 40085b: e9 a0 ff ff ff jmpq 400800 <_init+0x20> 0000000000400860 <__libc_start_main@plt>: 400860: ff 25 da 17 20 00 jmpq *0x2017da(%rip) # 602040 <_GLOBAL_OFFSET_TABLE_+0x40> 400866: 68 05 00 00 00 pushq $0x5 40086b: e9 90 ff ff ff jmpq 400800 <_init+0x20> 0000000000400870 : 400870: ff 25 d2 17 20 00 jmpq *0x2017d2(%rip) # 602048 <_GLOBAL_OFFSET_TABLE_+0x48> 400876: 68 06 00 00 00 pushq $0x6 40087b: e9 80 ff ff ff jmpq 400800 <_init+0x20> 0000000000400880 : 400880: ff 25 ca 17 20 00 jmpq *0x2017ca(%rip) # 602050 <_GLOBAL_OFFSET_TABLE_+0x50> 400886: 68 07 00 00 00 pushq $0x7 40088b: e9 70 ff ff ff jmpq 400800 <_init+0x20> 0000000000400890 : 400890: ff 25 c2 17 20 00 jmpq *0x2017c2(%rip) # 602058 <_GLOBAL_OFFSET_TABLE_+0x58> 400896: 68 08 00 00 00 pushq $0x8 40089b: e9 60 ff ff ff jmpq 400800 <_init+0x20> 00000000004008a0 : 4008a0: ff 25 ba 17 20 00 jmpq *0x2017ba(%rip) # 602060 <_GLOBAL_OFFSET_TABLE_+0x60> 4008a6: 68 09 00 00 00 pushq $0x9 4008ab: e9 50 ff ff ff jmpq 400800 <_init+0x20> 00000000004008b0 : 4008b0: ff 25 b2 17 20 00 jmpq *0x2017b2(%rip) # 602068 <_GLOBAL_OFFSET_TABLE_+0x68> 4008b6: 68 0a 00 00 00 pushq $0xa 4008bb: e9 40 ff ff ff jmpq 400800 <_init+0x20> 00000000004008c0 : 4008c0: ff 25 aa 17 20 00 jmpq *0x2017aa(%rip) # 602070 <_GLOBAL_OFFSET_TABLE_+0x70> 4008c6: 68 0b 00 00 00 pushq $0xb 4008cb: e9 30 ff ff ff jmpq 400800 <_init+0x20> 00000000004008d0 : 4008d0: ff 25 a2 17 20 00 jmpq *0x2017a2(%rip) # 602078 <_GLOBAL_OFFSET_TABLE_+0x78> 4008d6: 68 0c 00 00 00 pushq $0xc 4008db: e9 20 ff ff ff jmpq 400800 <_init+0x20> 00000000004008e0 : 4008e0: ff 25 9a 17 20 00 jmpq *0x20179a(%rip) # 602080 <_GLOBAL_OFFSET_TABLE_+0x80> 4008e6: 68 0d 00 00 00 pushq $0xd 4008eb: e9 10 ff ff ff jmpq 400800 <_init+0x20> Disassembly of section .plt.got: 00000000004008f0 <.plt.got>: 4008f0: ff 25 02 17 20 00 jmpq *0x201702(%rip) # 601ff8 <_DYNAMIC+0x1e0> 4008f6: 66 90 xchg %ax,%ax Disassembly of section .text: 0000000000400900 <_start>: _start(): 400900: 31 ed xor %ebp,%ebp 400902: 49 89 d1 mov %rdx,%r9 400905: 5e pop %rsi 400906: 48 89 e2 mov %rsp,%rdx 400909: 48 83 e4 f0 and $0xfffffffffffffff0,%rsp 40090d: 50 push %rax 40090e: 54 push %rsp 40090f: 49 c7 c0 e0 0d 40 00 mov $0x400de0,%r8 400916: 48 c7 c1 70 0d 40 00 mov $0x400d70,%rcx 40091d: 48 c7 c7 60 0c 40 00 mov $0x400c60,%rdi 400924: e8 37 ff ff ff callq 400860 <__libc_start_main@plt> 400929: f4 hlt 40092a: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 0000000000400930 : deregister_tm_clones(): 400930: b8 9f 20 60 00 mov $0x60209f,%eax 400935: 55 push %rbp 400936: 48 2d 98 20 60 00 sub $0x602098,%rax 40093c: 48 83 f8 0e cmp $0xe,%rax 400940: 48 89 e5 mov %rsp,%rbp 400943: 76 1b jbe 400960 400945: b8 00 00 00 00 mov $0x0,%eax 40094a: 48 85 c0 test %rax,%rax 40094d: 74 11 je 400960 40094f: 5d pop %rbp 400950: bf 98 20 60 00 mov $0x602098,%edi 400955: ff e0 jmpq *%rax 400957: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 40095e: 00 00 400960: 5d pop %rbp 400961: c3 retq 400962: 0f 1f 40 00 nopl 0x0(%rax) 400966: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 40096d: 00 00 00 0000000000400970 : register_tm_clones(): 400970: be 98 20 60 00 mov $0x602098,%esi 400975: 55 push %rbp 400976: 48 81 ee 98 20 60 00 sub $0x602098,%rsi 40097d: 48 c1 fe 03 sar $0x3,%rsi 400981: 48 89 e5 mov %rsp,%rbp 400984: 48 89 f0 mov %rsi,%rax 400987: 48 c1 e8 3f shr $0x3f,%rax 40098b: 48 01 c6 add %rax,%rsi 40098e: 48 d1 fe sar %rsi 400991: 74 15 je 4009a8 400993: b8 00 00 00 00 mov $0x0,%eax 400998: 48 85 c0 test %rax,%rax 40099b: 74 0b je 4009a8 40099d: 5d pop %rbp 40099e: bf 98 20 60 00 mov $0x602098,%edi 4009a3: ff e0 jmpq *%rax 4009a5: 0f 1f 00 nopl (%rax) 4009a8: 5d pop %rbp 4009a9: c3 retq 4009aa: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 00000000004009b0 <__do_global_dtors_aux>: __do_global_dtors_aux(): 4009b0: 80 3d f1 16 20 00 00 cmpb $0x0,0x2016f1(%rip) # 6020a8 4009b7: 75 11 jne 4009ca <__do_global_dtors_aux+0x1a> 4009b9: 55 push %rbp 4009ba: 48 89 e5 mov %rsp,%rbp 4009bd: e8 6e ff ff ff callq 400930 4009c2: 5d pop %rbp 4009c3: c6 05 de 16 20 00 01 movb $0x1,0x2016de(%rip) # 6020a8 4009ca: f3 c3 repz retq 4009cc: 0f 1f 40 00 nopl 0x0(%rax) 00000000004009d0 : frame_dummy(): 4009d0: bf 10 1e 60 00 mov $0x601e10,%edi 4009d5: 48 83 3f 00 cmpq $0x0,(%rdi) 4009d9: 75 05 jne 4009e0 4009db: eb 93 jmp 400970 4009dd: 0f 1f 00 nopl (%rax) 4009e0: b8 00 00 00 00 mov $0x0,%eax 4009e5: 48 85 c0 test %rax,%rax 4009e8: 74 f1 je 4009db 4009ea: 55 push %rbp 4009eb: 48 89 e5 mov %rsp,%rbp 4009ee: ff d0 callq *%rax 4009f0: 5d pop %rbp 4009f1: e9 7a ff ff ff jmpq 400970 00000000004009f6 : GetTime(): /home/claypool/os-nz/samples/lecture-1/common.h:9 #include #include #include #include double GetTime() { 4009f6: 55 push %rbp 4009f7: 48 89 e5 mov %rsp,%rbp 4009fa: 48 83 ec 30 sub $0x30,%rsp 4009fe: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax 400a05: 00 00 400a07: 48 89 45 f8 mov %rax,-0x8(%rbp) 400a0b: 31 c0 xor %eax,%eax /home/claypool/os-nz/samples/lecture-1/common.h:11 struct timeval t; int rc = gettimeofday(&t, NULL); 400a0d: 48 8d 45 e0 lea -0x20(%rbp),%rax 400a11: be 00 00 00 00 mov $0x0,%esi 400a16: 48 89 c7 mov %rax,%rdi 400a19: e8 22 fe ff ff callq 400840 400a1e: 89 45 dc mov %eax,-0x24(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:12 assert(rc == 0); 400a21: 83 7d dc 00 cmpl $0x0,-0x24(%rbp) 400a25: 74 19 je 400a40 /home/claypool/os-nz/samples/lecture-1/common.h:12 (discriminator 1) 400a27: b9 58 0e 40 00 mov $0x400e58,%ecx 400a2c: ba 0c 00 00 00 mov $0xc,%edx 400a31: be 00 0e 40 00 mov $0x400e00,%esi 400a36: bf 09 0e 40 00 mov $0x400e09,%edi 400a3b: e8 10 fe ff ff callq 400850 <__assert_fail@plt> /home/claypool/os-nz/samples/lecture-1/common.h:13 return (double)t.tv_sec + (double)t.tv_usec/1e6; 400a40: 48 8b 45 e0 mov -0x20(%rbp),%rax 400a44: 66 0f ef c9 pxor %xmm1,%xmm1 400a48: f2 48 0f 2a c8 cvtsi2sd %rax,%xmm1 400a4d: 48 8b 45 e8 mov -0x18(%rbp),%rax 400a51: 66 0f ef c0 pxor %xmm0,%xmm0 400a55: f2 48 0f 2a c0 cvtsi2sd %rax,%xmm0 400a5a: f2 0f 10 15 76 04 00 movsd 0x476(%rip),%xmm2 # 400ed8 <__PRETTY_FUNCTION__.3507+0x18> 400a61: 00 400a62: f2 0f 5e c2 divsd %xmm2,%xmm0 400a66: f2 0f 58 c1 addsd %xmm1,%xmm0 /home/claypool/os-nz/samples/lecture-1/common.h:14 } 400a6a: 48 8b 45 f8 mov -0x8(%rbp),%rax 400a6e: 64 48 33 04 25 28 00 xor %fs:0x28,%rax 400a75: 00 00 400a77: 74 05 je 400a7e 400a79: e8 a2 fd ff ff callq 400820 <__stack_chk_fail@plt> 400a7e: c9 leaveq 400a7f: c3 retq 0000000000400a80 : Spin(): /home/claypool/os-nz/samples/lecture-1/common.h:16 void Spin(int howlong) { 400a80: 55 push %rbp 400a81: 48 89 e5 mov %rsp,%rbp 400a84: 48 83 ec 20 sub $0x20,%rsp 400a88: 89 7d ec mov %edi,-0x14(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:17 double t = GetTime(); 400a8b: b8 00 00 00 00 mov $0x0,%eax 400a90: e8 61 ff ff ff callq 4009f6 400a95: 66 48 0f 7e c0 movq %xmm0,%rax 400a9a: 48 89 45 f8 mov %rax,-0x8(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:18 while ((GetTime() - t) < (double)howlong) 400a9e: 90 nop /home/claypool/os-nz/samples/lecture-1/common.h:18 (discriminator 1) 400a9f: b8 00 00 00 00 mov $0x0,%eax 400aa4: e8 4d ff ff ff callq 4009f6 400aa9: 66 0f 28 c8 movapd %xmm0,%xmm1 400aad: f2 0f 5c 4d f8 subsd -0x8(%rbp),%xmm1 400ab2: 66 0f ef c0 pxor %xmm0,%xmm0 400ab6: f2 0f 2a 45 ec cvtsi2sdl -0x14(%rbp),%xmm0 400abb: 66 0f 2e c1 ucomisd %xmm1,%xmm0 400abf: 77 de ja 400a9f /home/claypool/os-nz/samples/lecture-1/common.h:20 ; // do nothing in loop } 400ac1: 90 nop 400ac2: c9 leaveq 400ac3: c3 retq 0000000000400ac4 : Pthread_create(): /home/claypool/os-nz/samples/lecture-1/common.h:23 void Pthread_create(pthread_t *t, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) { 400ac4: 55 push %rbp 400ac5: 48 89 e5 mov %rsp,%rbp 400ac8: 48 83 ec 30 sub $0x30,%rsp 400acc: 48 89 7d e8 mov %rdi,-0x18(%rbp) 400ad0: 48 89 75 e0 mov %rsi,-0x20(%rbp) 400ad4: 48 89 55 d8 mov %rdx,-0x28(%rbp) 400ad8: 48 89 4d d0 mov %rcx,-0x30(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:24 int rc = pthread_create(t, attr, start_routine, arg); 400adc: 48 8b 4d d0 mov -0x30(%rbp),%rcx 400ae0: 48 8b 55 d8 mov -0x28(%rbp),%rdx 400ae4: 48 8b 75 e0 mov -0x20(%rbp),%rsi 400ae8: 48 8b 45 e8 mov -0x18(%rbp),%rax 400aec: 48 89 c7 mov %rax,%rdi 400aef: e8 1c fd ff ff callq 400810 400af4: 89 45 fc mov %eax,-0x4(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:25 assert(rc == 0); 400af7: 83 7d fc 00 cmpl $0x0,-0x4(%rbp) 400afb: 74 19 je 400b16 /home/claypool/os-nz/samples/lecture-1/common.h:25 (discriminator 1) 400afd: b9 60 0e 40 00 mov $0x400e60,%ecx 400b02: ba 19 00 00 00 mov $0x19,%edx 400b07: be 00 0e 40 00 mov $0x400e00,%esi 400b0c: bf 09 0e 40 00 mov $0x400e09,%edi 400b11: e8 3a fd ff ff callq 400850 <__assert_fail@plt> /home/claypool/os-nz/samples/lecture-1/common.h:26 } 400b16: 90 nop 400b17: c9 leaveq 400b18: c3 retq 0000000000400b19 : Pthread_join(): /home/claypool/os-nz/samples/lecture-1/common.h:28 void Pthread_join(pthread_t thread, void **value_ptr) { 400b19: 55 push %rbp 400b1a: 48 89 e5 mov %rsp,%rbp 400b1d: 48 83 ec 20 sub $0x20,%rsp 400b21: 48 89 7d e8 mov %rdi,-0x18(%rbp) 400b25: 48 89 75 e0 mov %rsi,-0x20(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:29 int rc = pthread_join(thread, value_ptr); 400b29: 48 8b 55 e0 mov -0x20(%rbp),%rdx 400b2d: 48 8b 45 e8 mov -0x18(%rbp),%rax 400b31: 48 89 d6 mov %rdx,%rsi 400b34: 48 89 c7 mov %rax,%rdi 400b37: e8 54 fd ff ff callq 400890 400b3c: 89 45 fc mov %eax,-0x4(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:30 assert(rc == 0); 400b3f: 83 7d fc 00 cmpl $0x0,-0x4(%rbp) 400b43: 74 19 je 400b5e /home/claypool/os-nz/samples/lecture-1/common.h:30 (discriminator 1) 400b45: b9 70 0e 40 00 mov $0x400e70,%ecx 400b4a: ba 1e 00 00 00 mov $0x1e,%edx 400b4f: be 00 0e 40 00 mov $0x400e00,%esi 400b54: bf 09 0e 40 00 mov $0x400e09,%edi 400b59: e8 f2 fc ff ff callq 400850 <__assert_fail@plt> /home/claypool/os-nz/samples/lecture-1/common.h:31 } 400b5e: 90 nop 400b5f: c9 leaveq 400b60: c3 retq 0000000000400b61 : Pthread_mutex_lock(): /home/claypool/os-nz/samples/lecture-1/common.h:33 void Pthread_mutex_lock(pthread_mutex_t *mutex) { 400b61: 55 push %rbp 400b62: 48 89 e5 mov %rsp,%rbp 400b65: 48 83 ec 20 sub $0x20,%rsp 400b69: 48 89 7d e8 mov %rdi,-0x18(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:34 int rc = pthread_mutex_lock(mutex); 400b6d: 48 8b 45 e8 mov -0x18(%rbp),%rax 400b71: 48 89 c7 mov %rax,%rdi 400b74: e8 67 fd ff ff callq 4008e0 400b79: 89 45 fc mov %eax,-0x4(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:35 assert(rc == 0); 400b7c: 83 7d fc 00 cmpl $0x0,-0x4(%rbp) 400b80: 74 19 je 400b9b /home/claypool/os-nz/samples/lecture-1/common.h:35 (discriminator 1) 400b82: b9 80 0e 40 00 mov $0x400e80,%ecx 400b87: ba 23 00 00 00 mov $0x23,%edx 400b8c: be 00 0e 40 00 mov $0x400e00,%esi 400b91: bf 09 0e 40 00 mov $0x400e09,%edi 400b96: e8 b5 fc ff ff callq 400850 <__assert_fail@plt> /home/claypool/os-nz/samples/lecture-1/common.h:36 } 400b9b: 90 nop 400b9c: c9 leaveq 400b9d: c3 retq 0000000000400b9e : Pthread_mutex_unlock(): /home/claypool/os-nz/samples/lecture-1/common.h:38 void Pthread_mutex_unlock(pthread_mutex_t *mutex) { 400b9e: 55 push %rbp 400b9f: 48 89 e5 mov %rsp,%rbp 400ba2: 48 83 ec 20 sub $0x20,%rsp 400ba6: 48 89 7d e8 mov %rdi,-0x18(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:39 int rc = pthread_mutex_unlock(mutex); 400baa: 48 8b 45 e8 mov -0x18(%rbp),%rax 400bae: 48 89 c7 mov %rax,%rdi 400bb1: e8 ba fc ff ff callq 400870 400bb6: 89 45 fc mov %eax,-0x4(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:40 assert(rc == 0); 400bb9: 83 7d fc 00 cmpl $0x0,-0x4(%rbp) 400bbd: 74 19 je 400bd8 /home/claypool/os-nz/samples/lecture-1/common.h:40 (discriminator 1) 400bbf: b9 a0 0e 40 00 mov $0x400ea0,%ecx 400bc4: ba 28 00 00 00 mov $0x28,%edx 400bc9: be 00 0e 40 00 mov $0x400e00,%esi 400bce: bf 09 0e 40 00 mov $0x400e09,%edi 400bd3: e8 78 fc ff ff callq 400850 <__assert_fail@plt> /home/claypool/os-nz/samples/lecture-1/common.h:41 } 400bd8: 90 nop 400bd9: c9 leaveq 400bda: c3 retq 0000000000400bdb : Pthread_mutex_init(): /home/claypool/os-nz/samples/lecture-1/common.h:43 void Pthread_mutex_init(pthread_mutex_t *mutex, pthread_mutexattr_t *attr) { 400bdb: 55 push %rbp 400bdc: 48 89 e5 mov %rsp,%rbp 400bdf: 48 83 ec 20 sub $0x20,%rsp 400be3: 48 89 7d e8 mov %rdi,-0x18(%rbp) 400be7: 48 89 75 e0 mov %rsi,-0x20(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:44 int rc = pthread_mutex_init(mutex, attr); 400beb: 48 8b 55 e0 mov -0x20(%rbp),%rdx 400bef: 48 8b 45 e8 mov -0x18(%rbp),%rax 400bf3: 48 89 d6 mov %rdx,%rsi 400bf6: 48 89 c7 mov %rax,%rdi 400bf9: e8 d2 fc ff ff callq 4008d0 400bfe: 89 45 fc mov %eax,-0x4(%rbp) /home/claypool/os-nz/samples/lecture-1/common.h:45 assert(rc == 0); 400c01: 83 7d fc 00 cmpl $0x0,-0x4(%rbp) 400c05: 74 19 je 400c20 /home/claypool/os-nz/samples/lecture-1/common.h:45 (discriminator 1) 400c07: b9 c0 0e 40 00 mov $0x400ec0,%ecx 400c0c: ba 2d 00 00 00 mov $0x2d,%edx 400c11: be 00 0e 40 00 mov $0x400e00,%esi 400c16: bf 09 0e 40 00 mov $0x400e09,%edi 400c1b: e8 30 fc ff ff callq 400850 <__assert_fail@plt> /home/claypool/os-nz/samples/lecture-1/common.h:46 } 400c20: 90 nop 400c21: c9 leaveq 400c22: c3 retq 0000000000400c23 : worker(): /home/claypool/os-nz/samples/lecture-1/threads-v0.c:10 // Global variables. volatile int g_counter = 0; // Volatile prevents compiler from optimizing away. int g_loops; // Do some work. void *worker(void *arg) { 400c23: 55 push %rbp 400c24: 48 89 e5 mov %rsp,%rbp 400c27: 48 83 ec 20 sub $0x20,%rsp 400c2b: 48 89 7d e8 mov %rdi,-0x18(%rbp) /home/claypool/os-nz/samples/lecture-1/threads-v0.c:12 int i; for (i = 0; i < g_loops; i++) 400c2f: c7 45 fc 00 00 00 00 movl $0x0,-0x4(%rbp) 400c36: eb 13 jmp 400c4b /home/claypool/os-nz/samples/lecture-1/threads-v0.c:13 (discriminator 3) g_counter++; 400c38: 8b 05 6e 14 20 00 mov 0x20146e(%rip),%eax # 6020ac 400c3e: 83 c0 01 add $0x1,%eax 400c41: 89 05 65 14 20 00 mov %eax,0x201465(%rip) # 6020ac /home/claypool/os-nz/samples/lecture-1/threads-v0.c:12 (discriminator 3) int g_loops; // Do some work. void *worker(void *arg) { int i; for (i = 0; i < g_loops; i++) 400c47: 83 45 fc 01 addl $0x1,-0x4(%rbp) /home/claypool/os-nz/samples/lecture-1/threads-v0.c:12 (discriminator 1) 400c4b: 8b 05 5f 14 20 00 mov 0x20145f(%rip),%eax # 6020b0 400c51: 39 45 fc cmp %eax,-0x4(%rbp) 400c54: 7c e2 jl 400c38 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:14 g_counter++; pthread_exit(NULL); 400c56: bf 00 00 00 00 mov $0x0,%edi 400c5b: e8 20 fc ff ff callq 400880 0000000000400c60
: main(): /home/claypool/os-nz/samples/lecture-1/threads-v0.c:18 } // Main. int main(int argc, char *argv[]) { 400c60: 55 push %rbp 400c61: 48 89 e5 mov %rsp,%rbp 400c64: 48 83 ec 30 sub $0x30,%rsp 400c68: 89 7d dc mov %edi,-0x24(%rbp) 400c6b: 48 89 75 d0 mov %rsi,-0x30(%rbp) 400c6f: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax 400c76: 00 00 400c78: 48 89 45 f8 mov %rax,-0x8(%rbp) 400c7c: 31 c0 xor %eax,%eax /home/claypool/os-nz/samples/lecture-1/threads-v0.c:21 // Command line arg. if (argc != 2) { 400c7e: 83 7d dc 02 cmpl $0x2,-0x24(%rbp) 400c82: 74 28 je 400cac /home/claypool/os-nz/samples/lecture-1/threads-v0.c:22 fprintf(stderr, "usage: threads \n"); 400c84: 48 8b 05 15 14 20 00 mov 0x201415(%rip),%rax # 6020a0 400c8b: 48 89 c1 mov %rax,%rcx 400c8e: ba 17 00 00 00 mov $0x17,%edx 400c93: be 01 00 00 00 mov $0x1,%esi 400c98: bf 11 0e 40 00 mov $0x400e11,%edi 400c9d: e8 1e fc ff ff callq 4008c0 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:23 exit(1); 400ca2: bf 01 00 00 00 mov $0x1,%edi 400ca7: e8 04 fc ff ff callq 4008b0 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:25 } g_loops = atoi(argv[1]); // Assign to g_loops. 400cac: 48 8b 45 d0 mov -0x30(%rbp),%rax 400cb0: 48 83 c0 08 add $0x8,%rax 400cb4: 48 8b 00 mov (%rax),%rax 400cb7: 48 89 c7 mov %rax,%rdi 400cba: e8 e1 fb ff ff callq 4008a0 400cbf: 89 05 eb 13 20 00 mov %eax,0x2013eb(%rip) # 6020b0 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:28 pthread_t p1, p2; printf(" Initial value: %d\n", g_counter); 400cc5: 8b 05 e1 13 20 00 mov 0x2013e1(%rip),%eax # 6020ac 400ccb: 89 c6 mov %eax,%esi 400ccd: bf 29 0e 40 00 mov $0x400e29,%edi 400cd2: b8 00 00 00 00 mov $0x0,%eax 400cd7: e8 54 fb ff ff callq 400830 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:29 Pthread_create(&p1, NULL, worker, NULL); 400cdc: 48 8d 45 e8 lea -0x18(%rbp),%rax 400ce0: b9 00 00 00 00 mov $0x0,%ecx 400ce5: ba 23 0c 40 00 mov $0x400c23,%edx 400cea: be 00 00 00 00 mov $0x0,%esi 400cef: 48 89 c7 mov %rax,%rdi 400cf2: e8 cd fd ff ff callq 400ac4 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:30 Pthread_create(&p2, NULL, worker, NULL); 400cf7: 48 8d 45 f0 lea -0x10(%rbp),%rax 400cfb: b9 00 00 00 00 mov $0x0,%ecx 400d00: ba 23 0c 40 00 mov $0x400c23,%edx 400d05: be 00 00 00 00 mov $0x0,%esi 400d0a: 48 89 c7 mov %rax,%rdi 400d0d: e8 b2 fd ff ff callq 400ac4 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:31 Pthread_join(p1, NULL); 400d12: 48 8b 45 e8 mov -0x18(%rbp),%rax 400d16: be 00 00 00 00 mov $0x0,%esi 400d1b: 48 89 c7 mov %rax,%rdi 400d1e: e8 f6 fd ff ff callq 400b19 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:32 Pthread_join(p2, NULL); 400d23: 48 8b 45 f0 mov -0x10(%rbp),%rax 400d27: be 00 00 00 00 mov $0x0,%esi 400d2c: 48 89 c7 mov %rax,%rdi 400d2f: e8 e5 fd ff ff callq 400b19 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:33 printf(" Final value: %d\n", g_counter); 400d34: 8b 05 72 13 20 00 mov 0x201372(%rip),%eax # 6020ac 400d3a: 89 c6 mov %eax,%esi 400d3c: bf 3d 0e 40 00 mov $0x400e3d,%edi 400d41: b8 00 00 00 00 mov $0x0,%eax 400d46: e8 e5 fa ff ff callq 400830 /home/claypool/os-nz/samples/lecture-1/threads-v0.c:35 return 0; 400d4b: b8 00 00 00 00 mov $0x0,%eax /home/claypool/os-nz/samples/lecture-1/threads-v0.c:36 } 400d50: 48 8b 55 f8 mov -0x8(%rbp),%rdx 400d54: 64 48 33 14 25 28 00 xor %fs:0x28,%rdx 400d5b: 00 00 400d5d: 74 05 je 400d64 400d5f: e8 bc fa ff ff callq 400820 <__stack_chk_fail@plt> 400d64: c9 leaveq 400d65: c3 retq 400d66: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 400d6d: 00 00 00 0000000000400d70 <__libc_csu_init>: __libc_csu_init(): 400d70: 41 57 push %r15 400d72: 41 56 push %r14 400d74: 41 89 ff mov %edi,%r15d 400d77: 41 55 push %r13 400d79: 41 54 push %r12 400d7b: 4c 8d 25 7e 10 20 00 lea 0x20107e(%rip),%r12 # 601e00 <__frame_dummy_init_array_entry> 400d82: 55 push %rbp 400d83: 48 8d 2d 7e 10 20 00 lea 0x20107e(%rip),%rbp # 601e08 <__init_array_end> 400d8a: 53 push %rbx 400d8b: 49 89 f6 mov %rsi,%r14 400d8e: 49 89 d5 mov %rdx,%r13 400d91: 4c 29 e5 sub %r12,%rbp 400d94: 48 83 ec 08 sub $0x8,%rsp 400d98: 48 c1 fd 03 sar $0x3,%rbp 400d9c: e8 3f fa ff ff callq 4007e0 <_init> 400da1: 48 85 ed test %rbp,%rbp 400da4: 74 20 je 400dc6 <__libc_csu_init+0x56> 400da6: 31 db xor %ebx,%ebx 400da8: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 400daf: 00 400db0: 4c 89 ea mov %r13,%rdx 400db3: 4c 89 f6 mov %r14,%rsi 400db6: 44 89 ff mov %r15d,%edi 400db9: 41 ff 14 dc callq *(%r12,%rbx,8) 400dbd: 48 83 c3 01 add $0x1,%rbx 400dc1: 48 39 eb cmp %rbp,%rbx 400dc4: 75 ea jne 400db0 <__libc_csu_init+0x40> 400dc6: 48 83 c4 08 add $0x8,%rsp 400dca: 5b pop %rbx 400dcb: 5d pop %rbp 400dcc: 41 5c pop %r12 400dce: 41 5d pop %r13 400dd0: 41 5e pop %r14 400dd2: 41 5f pop %r15 400dd4: c3 retq 400dd5: 90 nop 400dd6: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 400ddd: 00 00 00 0000000000400de0 <__libc_csu_fini>: __libc_csu_fini(): 400de0: f3 c3 repz retq Disassembly of section .fini: 0000000000400de4 <_fini>: _fini(): 400de4: 48 83 ec 08 sub $0x8,%rsp 400de8: 48 83 c4 08 add $0x8,%rsp 400dec: c3 retq