nptl/pthread_rwlock_wrlock.s

   1         .text
   2         .section        .rodata.str1.8,"aMS",@progbits,1
   3         .align 8
   4 .LC0:
   5         .string "The futex facility returned an unexpected error code.\n"
   6         .text
   7         .p2align 4,,15
   8         .globl  __pthread_rwlock_wrlock
   9         .type   __pthread_rwlock_wrlock, @function
  10 __pthread_rwlock_wrlock:
  11         movl    24(%rdi), %edx
  12 #APP
  13 # 603 "pthread_rwlock_common.c" 1
  14         movl %fs:720,%eax
  15 # 0 "" 2
  16 #NO_APP
  17         cmpl    %eax, %edx
  18         je      .L47
  19         pushq   %r14
  20         pushq   %r13
  21         pushq   %r12
  22         pushq   %rbp
  23         pushq   %rbx
  24         movl    (%rdi), %eax
  25 .L3:
  26         movl    %eax, %ecx
  27         movl    %eax, %edx
  28         orl     $2, %ecx
  29         lock cmpxchgl   %ecx, (%rdi)
  30         jne     .L3
  31         testb   $2, %dl
  32         movq    %rdi, %rbx
  33         leaq    12(%rdi), %rbp
  34         movl    $1, %eax
  35         jne     .L112
  36 .L4:
  37         testb   $1, %dl
  38         movl    %eax, 12(%rbx)
  39         jne     .L22
  40 .L20:
  41         movl    %edx, %eax
  42         shrl    $3, %eax
  43         testl   %eax, %eax
  44         jne     .L25
  45         movl    %edx, %ecx
  46         movl    %edx, %eax
  47         orl     $1, %ecx
  48         lock cmpxchgl   %ecx, (%rbx)
  49         movl    %eax, %edx
  50         jne     .L21
  51         movl    $1, 8(%rbx)
  52 .L22:
  53 #APP
  54 # 947 "pthread_rwlock_common.c" 1
  55         movl %fs:720,%eax
  56 # 0 "" 2
  57 #NO_APP
  58         movl    %eax, 24(%rbx)
  59         xorl    %r8d, %r8d
  60 .L1:
  61         popq    %rbx
  62         movl    %r8d, %eax
  63         popq    %rbp
  64         popq    %r12
  65         popq    %r13
  66         popq    %r14
  67         ret
  68         .p2align 4,,10
  69         .p2align 3
  70 .L47:
  71         movl    $35, %r8d
  72         movl    %r8d, %eax
  73         ret
  74         .p2align 4,,10
  75         .p2align 3
  76 .L112:
  77         movl    48(%rdi), %r12d
  78         testl   %r12d, %r12d
  79         jne     .L113
  80 .L5:
  81         xorl    %ecx, %ecx
  82         movl    $128, %r13d
  83 .L6:
  84         testb   $2, %dl
  85         jne     .L7
  86         movl    %edx, %esi
  87         movl    %edx, %eax
  88         orl     $2, %esi
  89         lock cmpxchgl   %esi, (%rbx)
  90         movl    %eax, %edx
  91         jne     .L6
  92         testl   %r12d, %r12d
  93         jne     .L114
  94 .L9:
  95         orl     $2, %edx
  96         cmpb    $1, %cl
  97         sbbl    %eax, %eax
  98         andl    $-2, %eax
  99         addl    $3, %eax
 100         jmp     .L4
 101         .p2align 4,,10
 102         .p2align 3
 103 .L7:
 104         testl   %r12d, %r12d
 105         jne     .L115
 106 .L10:
 107         movl    28(%rbx), %r8d
 108         movl    0(%rbp), %eax
 109         testl   %r8d, %r8d
 110         movl    %eax, %edx
 111         cmovne  %r13d, %r8d
 112         andl    $-3, %edx
 113         cmpl    $1, %edx
 114         jne     .L14
 115         cmpl    $3, %eax
 116         je      .L13
 117         movl    $3, %edx
 118         lock cmpxchgl   %edx, 0(%rbp)
 119         jne     .L14
 120 .L13:
 121         xorl    %ecx, %ecx
 122         xorl    %edx, %edx
 123         movl    $3, %esi
 124         movq    %rbp, %rdi
 125         call    __futex_abstimed_wait64@PLT
 126         cmpl    $110, %eax
 127         movl    %eax, %r8d
 128         je      .L53
 129         cmpl    $75, %eax
 130         je      .L53
 131         movl    (%rbx), %edx
 132         movl    $1, %ecx
 133         jmp     .L6
 134 .L21:
 135         testb   $1, %al
 136         je      .L20
 137         .p2align 4,,10
 138         .p2align 3
 139 .L25:
 140         leaq    8(%rbx), %r12
 141         xorl    %r13d, %r13d
 142         .p2align 4,,10
 143         .p2align 3
 144 .L23:
 145         movl    (%r12), %eax
 146         movl    %eax, %edx
 147         orl     $2, %edx
 148         cmpl    $2, %edx
 149         je      .L45
 150         testb   %r13b, %r13b
 151         jne     .L22
 152         movl    (%rbx), %eax
 153         testb   $1, %al
 154         je      .L23
 155         movl    (%r12), %eax
 156         movl    %eax, %edx
 157         orl     $2, %edx
 158         cmpl    $2, %edx
 159         jne     .L22
 160         movl    $1, %r13d
 161 .L45:
 162         movl    28(%rbx), %r14d
 163         movl    $128, %edx
 164         testl   %r14d, %r14d
 165         cmovne  %edx, %r14d
 166         testb   $2, %al
 167         jne     .L30
 168         movl    $2, %edx
 169         lock cmpxchgl   %edx, (%r12)
 170         jne     .L23
 171 .L30:
 172         movl    %r14d, %r8d
 173         xorl    %ecx, %ecx
 174         xorl    %edx, %edx
 175         movl    $2, %esi
 176         movq    %r12, %rdi
 177         call    __futex_abstimed_wait64@PLT
 178         cmpl    $110, %eax
 179         movl    %eax, %r8d
 180         je      .L28
 181         cmpl    $75, %eax
 182         jne     .L23
 183 .L28:
 184         movl    48(%rbx), %eax
 185         testl   %eax, %eax
 186         je      .L32
 187         movl    4(%rbx), %eax
 188         leaq    4(%rbx), %rdx
 189         testl   %eax, %eax
 190         je      .L32
 191         xorl    %ecx, %ecx
 192         xchgl   0(%rbp), %ecx
 193 .L36:
 194         movl    %eax, %esi
 195         orl     $-2147483648, %esi
 196         lock cmpxchgl   %esi, (%rdx)
 197         jne     .L34
 198         andl    $2, %ecx
 199         je      .L1
 200         movl    %r14d, %esi
 201         xorl    %r10d, %r10d
 202         movl    $1, %edx
 203         xorb    $-127, %sil
 204         movq    %rbp, %rdi
 205         movl    $202, %eax
 206 #APP
 207 # 209 "../sysdeps/nptl/futex-internal.h" 1
 208         syscall
 209
 210 # 0 "" 2
 211 #NO_APP
 212         cmpq    $-4096, %rax
 213         jbe     .L1
 214         cmpl    $-22, %eax
 215         je      .L1
 216         cmpl    $-14, %eax
 217         je      .L1
 218 .L35:
 219         leaq    .LC0(%rip), %rdi
 220         call    __libc_fatal@PLT
 221 .L34:
 222         testl   %eax, %eax
 223         jne     .L36
 224         movl    %ecx, 12(%rbx)
 225         .p2align 4,,10
 226         .p2align 3
 227 .L32:
 228         movl    (%rbx), %eax
 229         movl    %eax, %edx
 230         andl    $1, %edx
 231         jne     .L44
 232         xchgl   0(%rbp), %edx
 233 .L43:
 234         movl    %eax, %ecx
 235         xorl    $2, %ecx
 236         andl    $-5, %ecx
 237         lock cmpxchgl   %ecx, (%rbx)
 238         movl    %eax, %r8d
 239         jne     .L38
 240         andl    $2, %edx
 241         je      .L40
 242         movl    %r14d, %esi
 243         xorl    %r10d, %r10d
 244         movl    $1, %edx
 245         xorb    $-127, %sil
 246         movq    %rbp, %rdi
 247         movl    $202, %eax
 248 #APP
 249 # 209 "../sysdeps/nptl/futex-internal.h" 1
 250         syscall
 251
 252 # 0 "" 2
 253 #NO_APP
 254         cmpq    $-4096, %rax
 255         ja      .L116
 256 .L40:
 257         andl    $4, %r8d
 258         je      .L51
 259         movl    %r14d, %esi
 260         xorl    %r10d, %r10d
 261         movl    $2147483647, %edx
 262         xorb    $-127, %sil
 263         movq    %rbx, %rdi
 264         movl    $202, %eax
 265 #APP
 266 # 209 "../sysdeps/nptl/futex-internal.h" 1
 267         syscall
 268
 269 # 0 "" 2
 270 #NO_APP
 271         cmpq    $-4096, %rax
 272         ja      .L117
 273 .L51:
 274         movl    $110, %r8d
 275         jmp     .L1
 276 .L38:
 277         testb   $1, %al
 278         je      .L43
 279         movl    %edx, 12(%rbx)
 280         .p2align 4,,10
 281         .p2align 3
 282 .L44:
 283         movl    (%r12), %eax
 284         orl     $2, %eax
 285         cmpl    $2, %eax
 286         jne     .L22
 287         movl    (%r12), %eax
 288         orl     $2, %eax
 289         cmpl    $2, %eax
 290         je      .L44
 291         jmp     .L22
 292         .p2align 4,,10
 293         .p2align 3
 294 .L14:
 295         movl    (%rbx), %edx
 296         jmp     .L6
 297         .p2align 4,,10
 298         .p2align 3
 299 .L113:
 300         lock addl       $1, 4(%rdi)
 301         jmp     .L5
 302         .p2align 4,,10
 303         .p2align 3
 304 .L115:
 305         movl    4(%rbx), %eax
 306         leaq    4(%rbx), %rsi
 307         testl   %eax, %eax
 308         jns     .L10
 309         leal    2147483647(%rax), %edi
 310         lock cmpxchgl   %edi, (%rsi)
 311         jne     .L6
 312         movl    (%rbx), %edx
 313         jmp     .L9
 314         .p2align 4,,10
 315         .p2align 3
 316 .L114:
 317         lock subl       $1, 4(%rbx)
 318         jmp     .L9
 319 .L117:
 320         cmpl    $-22, %eax
 321         je      .L51
 322         cmpl    $-14, %eax
 323         je      .L51
 324         jmp     .L35
 325         .p2align 4,,10
 326         .p2align 3
 327 .L116:
 328         cmpl    $-22, %eax
 329         je      .L40
 330         cmpl    $-14, %eax
 331         je      .L40
 332         jmp     .L35
 333         .p2align 4,,10
 334         .p2align 3
 335 .L53:
 336         testl   %r12d, %r12d
 337         je      .L1
 338         movl    4(%rbx), %eax
 339         leaq    4(%rbx), %rdx
 340 .L18:
 341         cmpl    $-2147483647, %eax
 342         je      .L49
 343         leal    -1(%rax), %ecx
 344 .L17:
 345         lock cmpxchgl   %ecx, (%rdx)
 346         jne     .L18
 347         cmpl    $-2147483647, %eax
 348         jne     .L1
 349         movl    (%rbx), %edx
 350         movl    $3, %eax
 351         orl     $2, %edx
 352         jmp     .L4
 353 .L49:
 354         xorl    %ecx, %ecx
 355         jmp     .L17
 356         .size   __pthread_rwlock_wrlock, .-__pthread_rwlock_wrlock
 357         .weak   pthread_rwlock_wrlock
 358         .set    pthread_rwlock_wrlock,__pthread_rwlock_wrlock