nptl/sem_open.s

   1         .text
   2         .p2align 4,,15
   3         .type   check_add_mapping, @function
   4 check_add_mapping:
   5         pushq   %rbp
   6         movq    %rsp, %rbp
   7         pushq   %r15
   8         pushq   %r14
   9         pushq   %r13
  10         pushq   %r12
  11         movq    %rsi, %r12
  12         pushq   %rbx
  13         leaq    -192(%rbp), %rsi
  14         movq    %rdi, %r14
  15         movl    %edx, %edi
  16         movl    %edx, %r13d
  17         movq    %rcx, %rbx
  18         subq    $168, %rsp
  19         call    __fstat64@PLT
  20         testl   %eax, %eax
  21         jne     .L20
  22         movl    $1, %edx
  23         lock cmpxchgl   %edx, __sem_mappings_lock(%rip)
  24         jne     .L21
  25 .L4:
  26         leaq    32(%r12), %rax
  27         movq    %r12, %rdx
  28         movq    %r14, %rsi
  29         movq    %rax, -200(%rbp)
  30         leaq    62(%r12), %rax
  31         andq    $-16, %rax
  32         subq    %rax, %rsp
  33         leaq    15(%rsp), %rcx
  34         andq    $-16, %rcx
  35         leaq    32(%rcx), %rdi
  36         movq    %rcx, %r15
  37         call    memcpy@PLT
  38         movq    -192(%rbp), %rax
  39         leaq    __sem_search(%rip), %rdx
  40         leaq    __sem_mappings(%rip), %rsi
  41         movq    %r15, %rdi
  42         movq    %rax, (%r15)
  43         movq    -184(%rbp), %rax
  44         movq    %rax, 8(%r15)
  45         call    __tfind@PLT
  46         testq   %rax, %rax
  47         je      .L5
  48         movq    (%rax), %rax
  49         movq    24(%rax), %r12
  50         addl    $1, 16(%rax)
  51         leaq    -1(%rbx), %rax
  52         cmpq    $-3, %rax
  53         setbe   %r8b
  54         cmpq    %r12, %rbx
  55         setne   %al
  56         andl    %eax, %r8d
  57 .L6:
  58         xorl    %eax, %eax
  59 #APP
  60 # 124 "../sysdeps/pthread/sem_open.c" 1
  61         xchgl %eax, __sem_mappings_lock(%rip)
  62 # 0 "" 2
  63 #NO_APP
  64         cmpl    $1, %eax
  65         jg      .L22
  66 .L3:
  67         testb   %r8b, %r8b
  68         jne     .L23
  69 .L1:
  70         leaq    -40(%rbp), %rsp
  71         movq    %r12, %rax
  72         popq    %rbx
  73         popq    %r12
  74         popq    %r13
  75         popq    %r14
  76         popq    %r15
  77         popq    %rbp
  78         ret
  79         .p2align 4,,10
  80         .p2align 3
  81 .L23:
  82         movq    errno@gottpoff(%rip), %r13
  83         movl    $32, %esi
  84         movq    %rbx, %rdi
  85         movl    %fs:0(%r13), %r14d
  86         call    munmap@PLT
  87         movl    %r14d, %fs:0(%r13)
  88         jmp     .L1
  89         .p2align 4,,10
  90         .p2align 3
  91 .L20:
  92         leaq    -1(%rbx), %rax
  93         cmpq    $-3, %rax
  94         setbe   %r8b
  95         testq   %rbx, %rbx
  96         setne   %al
  97         xorl    %r12d, %r12d
  98         andl    %eax, %r8d
  99         jmp     .L3
 100         .p2align 4,,10
 101         .p2align 3
 102 .L5:
 103         leaq    32(%r12), %rdi
 104         call    malloc@PLT
 105         testq   %rax, %rax
 106         movq    %rax, %r15
 107         je      .L24
 108         testq   %rbx, %rbx
 109         je      .L25
 110 .L8:
 111         movq    -192(%rbp), %rax
 112         leaq    32(%r15), %rdi
 113         movq    %r12, %rdx
 114         movl    $1, 16(%r15)
 115         movq    %rbx, 24(%r15)
 116         movq    %r14, %rsi
 117         movq    %rax, (%r15)
 118         movq    -184(%rbp), %rax
 119         movq    %rax, 8(%r15)
 120         call    memcpy@PLT
 121         leaq    -1(%rbx), %rax
 122         cmpq    $-3, %rax
 123         setbe   %r12b
 124         cmpq    $-1, %rbx
 125         je      .L10
 126         leaq    __sem_search(%rip), %rdx
 127         leaq    __sem_mappings(%rip), %rsi
 128         movq    %r15, %rdi
 129         call    __tsearch@PLT
 130         testq   %rax, %rax
 131         je      .L10
 132         movq    %rbx, %r12
 133         xorl    %r8d, %r8d
 134         jmp     .L6
 135         .p2align 4,,10
 136         .p2align 3
 137 .L10:
 138         movq    %r15, %rdi
 139         call    free@PLT
 140         testq   %rbx, %rbx
 141         setne   %r8b
 142         andl    %r12d, %r8d
 143         xorl    %r12d, %r12d
 144         jmp     .L6
 145         .p2align 4,,10
 146         .p2align 3
 147 .L22:
 148         xorl    %r10d, %r10d
 149         movl    $1, %edx
 150         movl    $129, %esi
 151         leaq    __sem_mappings_lock(%rip), %rdi
 152         movl    $202, %eax
 153 #APP
 154 # 124 "../sysdeps/pthread/sem_open.c" 1
 155         syscall
 156
 157 # 0 "" 2
 158 #NO_APP
 159         jmp     .L3
 160         .p2align 4,,10
 161         .p2align 3
 162 .L21:
 163         leaq    __sem_mappings_lock(%rip), %rdi
 164         call    __lll_lock_wait_private@PLT
 165         jmp     .L4
 166         .p2align 4,,10
 167         .p2align 3
 168 .L24:
 169         leaq    -1(%rbx), %rax
 170         cmpq    $-3, %rax
 171         setbe   %r8b
 172         testq   %rbx, %rbx
 173         setne   %al
 174         xorl    %r12d, %r12d
 175         andl    %eax, %r8d
 176         jmp     .L6
 177         .p2align 4,,10
 178         .p2align 3
 179 .L25:
 180         xorl    %r9d, %r9d
 181         movl    %r13d, %r8d
 182         movl    $1, %ecx
 183         movl    $3, %edx
 184         movl    $32, %esi
 185         xorl    %edi, %edi
 186         call    mmap@PLT
 187         movq    %rax, %rbx
 188         jmp     .L8
 189         .size   check_add_mapping, .-check_add_mapping
 190         .p2align 4,,15
 191         .globl  __sem_search
 192         .type   __sem_search, @function
 193 __sem_search:
 194         movq    8(%rsi), %rax
 195         cmpq    %rax, 8(%rdi)
 196         je      .L27
 197 .L32:
 198         sbbl    %eax, %eax
 199         orl     $1, %eax
 200         ret
 201         .p2align 4,,10
 202         .p2align 3
 203 .L27:
 204         movq    (%rsi), %rax
 205         cmpq    %rax, (%rdi)
 206         jne     .L32
 207         addq    $32, %rsi
 208         addq    $32, %rdi
 209         jmp     strcmp@PLT
 210         .size   __sem_search, .-__sem_search
 211         .p2align 4,,15
 212         .globl  sem_open
 213         .type   sem_open, @function
 214 sem_open:
 215         pushq   %rbp
 216         movq    %rsp, %rbp
 217         pushq   %r15
 218         pushq   %r14
 219         pushq   %r13
 220         pushq   %r12
 221         movl    %esi, %r15d
 222         pushq   %rbx
 223         movq    %rdi, %rbx
 224         leaq    -160(%rbp), %rdi
 225         subq    $168, %rsp
 226         movq    %rdx, -80(%rbp)
 227         movq    %rcx, -72(%rbp)
 228         call    __shm_directory@PLT
 229         testq   %rax, %rax
 230         je      .L34
 231         cmpb    $47, (%rbx)
 232         movq    %rax, %r13
 233         jne     .L36
 234         .p2align 4,,10
 235         .p2align 3
 236 .L35:
 237         addq    $1, %rbx
 238         cmpb    $47, (%rbx)
 239         je      .L35
 240 .L36:
 241         movq    %rbx, %rdi
 242         call    strlen@PLT
 243         leaq    1(%rax), %r12
 244         cmpq    $1, %r12
 245         je      .L38
 246         cmpq    $254, %r12
 247         ja      .L38
 248         movl    $47, %esi
 249         movq    %rbx, %rdi
 250         call    strchr@PLT
 251         testq   %rax, %rax
 252         jne     .L38
 253         movq    -160(%rbp), %rdx
 254         movq    %r13, %rsi
 255         leaq    34(%rdx,%r12), %rax
 256         andq    $-16, %rax
 257         subq    %rax, %rsp
 258         leaq    15(%rsp), %rax
 259         andq    $-16, %rax
 260         movq    %rax, %rdi
 261         movq    %rax, -200(%rbp)
 262         call    __mempcpy@PLT
 263         leaq    4(%rax), %rdi
 264         movq    %r12, %rdx
 265         movq    %rbx, %rsi
 266         movl    $778921331, (%rax)
 267         call    memcpy@PLT
 268         leaq    -164(%rbp), %rsi
 269         movl    $1, %edi
 270         call    __pthread_setcancelstate@PLT
 271         movl    %r15d, %eax
 272         andl    $192, %eax
 273         cmpl    $192, %eax
 274         je      .L40
 275 .L41:
 276         movl    %r15d, %esi
 277         movq    -200(%rbp), %rdi
 278         xorl    %eax, %eax
 279         andl    $-131140, %esi
 280         orl     $131074, %esi
 281         call    __libc_open@PLT
 282         cmpl    $-1, %eax
 283         jne     .L42
 284         xorl    %r14d, %r14d
 285         testb   $64, %r15b
 286         je      .L43
 287         movq    errno@gottpoff(%rip), %r11
 288         cmpl    $2, %fs:(%r11)
 289         je      .L40
 290         .p2align 4,,10
 291         .p2align 3
 292 .L43:
 293         movl    -164(%rbp), %edi
 294         xorl    %esi, %esi
 295         call    __pthread_setcancelstate@PLT
 296         jmp     .L33
 297         .p2align 4,,10
 298         .p2align 3
 299 .L40:
 300         leaq    16(%rbp), %rax
 301         movl    $24, -152(%rbp)
 302         movq    %rax, -144(%rbp)
 303         leaq    -96(%rbp), %rax
 304         movl    16(%rax), %ecx
 305         movq    %rax, -136(%rbp)
 306         movl    24(%rax), %eax
 307         movl    %ecx, -188(%rbp)
 308         testl   %eax, %eax
 309         jns     .L49
 310         movq    errno@gottpoff(%rip), %rax
 311         movl    $22, %fs:(%rax)
 312 .L50:
 313         xorl    %r14d, %r14d
 314         jmp     .L43
 315         .p2align 4,,10
 316         .p2align 3
 317 .L38:
 318         movq    errno@gottpoff(%rip), %rax
 319         xorl    %r14d, %r14d
 320         movl    $22, %fs:(%rax)
 321 .L33:
 322         leaq    -40(%rbp), %rsp
 323         movq    %r14, %rax
 324         popq    %rbx
 325         popq    %r12
 326         popq    %r13
 327         popq    %r14
 328         popq    %r15
 329         popq    %rbp
 330         ret
 331         .p2align 4,,10
 332         .p2align 3
 333 .L42:
 334         xorl    %ecx, %ecx
 335         movl    %eax, %edx
 336         movq    %r12, %rsi
 337         movq    %rbx, %rdi
 338         movl    %eax, -184(%rbp)
 339         call    check_add_mapping
 340         movq    errno@gottpoff(%rip), %r11
 341         movl    -184(%rbp), %r10d
 342         movq    %rax, %r14
 343 .L44:
 344         cmpq    $-1, %r14
 345         movl    $0, %eax
 346         cmove   %rax, %r14
 347 .L57:
 348         movl    %r10d, %edi
 349         movl    %fs:(%r11), %ebx
 350         movq    %r11, -184(%rbp)
 351         call    __libc_close@PLT
 352         movq    -184(%rbp), %r11
 353         movl    %ebx, %fs:(%r11)
 354         jmp     .L43
 355         .p2align 4,,10
 356         .p2align 3
 357 .L49:
 358         movq    -160(%rbp), %rdx
 359         movq    %rax, -128(%rbp)
 360         movq    %r13, %rsi
 361         pxor    %xmm0, %xmm0
 362         movq    $128, -120(%rbp)
 363         leaq    41(%rdx), %rax
 364         movaps  %xmm0, -112(%rbp)
 365         andq    $-16, %rax
 366         subq    %rax, %rsp
 367         leaq    15(%rsp), %rax
 368         andq    $-16, %rax
 369         movq    %rax, %rdi
 370         movq    %rax, -184(%rbp)
 371         call    __mempcpy@PLT
 372         movl    $50, -208(%rbp)
 373         movq    %rax, %r14
 374         jmp     .L53
 375         .p2align 4,,10
 376         .p2align 3
 377 .L76:
 378         cmpl    $17, %fs:(%r11)
 379         jne     .L50
 380         subl    $1, -208(%rbp)
 381         je      .L80
 382 .L53:
 383         movq    -184(%rbp), %rdi
 384         movl    $22616, %eax
 385         movl    $1482184792, (%r14)
 386         movw    %ax, 4(%r14)
 387         movb    $0, 6(%r14)
 388         call    __mktemp@PLT
 389         testq   %rax, %rax
 390         je      .L50
 391         movl    -188(%rbp), %edx
 392         movq    -184(%rbp), %rdi
 393         xorl    %eax, %eax
 394         movl    $194, %esi
 395         call    __libc_open@PLT
 396         cmpl    $-1, %eax
 397         movl    %eax, %r10d
 398         movq    errno@gottpoff(%rip), %r11
 399         je      .L76
 400         leaq    -128(%rbp), %r14
 401         jmp     .L52
 402         .p2align 4,,10
 403         .p2align 3
 404 .L81:
 405         cmpl    $4, %fs:(%r11)
 406         jne     .L55
 407 .L52:
 408         movl    %r10d, %edi
 409         movl    $32, %edx
 410         movq    %r14, %rsi
 411         movq    %r11, -208(%rbp)
 412         movl    %r10d, -188(%rbp)
 413         call    __libc_write@PLT
 414         cmpq    $-1, %rax
 415         movl    -188(%rbp), %r10d
 416         movq    -208(%rbp), %r11
 417         je      .L81
 418         cmpq    $32, %rax
 419         jne     .L55
 420         xorl    %r9d, %r9d
 421         movl    %r10d, %r8d
 422         xorl    %edi, %edi
 423         movl    $1, %ecx
 424         movl    $3, %edx
 425         movl    $32, %esi
 426         movq    %r11, -208(%rbp)
 427         movl    %r10d, -188(%rbp)
 428         call    mmap@PLT
 429         cmpq    $-1, %rax
 430         movq    %rax, %r14
 431         movl    -188(%rbp), %r10d
 432         movq    -208(%rbp), %r11
 433         je      .L78
 434         movq    -200(%rbp), %rsi
 435         movq    -184(%rbp), %rdi
 436         movq    %r11, -208(%rbp)
 437         movl    %r10d, -188(%rbp)
 438         call    link@PLT
 439         testl   %eax, %eax
 440         movl    -188(%rbp), %r10d
 441         movq    -208(%rbp), %r11
 442         je      .L59
 443         movl    $32, %esi
 444         movq    %r14, %rdi
 445         call    munmap@PLT
 446         testb   $-128, %r15b
 447         movl    -188(%rbp), %r10d
 448         movq    -208(%rbp), %r11
 449         jne     .L78
 450         cmpl    $17, %fs:(%r11)
 451         movq    %r11, -208(%rbp)
 452         movl    %r10d, -188(%rbp)
 453         movq    -184(%rbp), %rdi
 454         je      .L61
 455         call    unlink@PLT
 456         xorl    %r14d, %r14d
 457         movl    -188(%rbp), %r10d
 458         movq    -208(%rbp), %r11
 459         jmp     .L57
 460         .p2align 4,,10
 461         .p2align 3
 462 .L34:
 463         movq    errno@gottpoff(%rip), %rax
 464         xorl    %r14d, %r14d
 465         movl    $38, %fs:(%rax)
 466         jmp     .L33
 467 .L55:
 468         movq    %r11, -200(%rbp)
 469         movl    %r10d, -188(%rbp)
 470 .L79:
 471         movq    -184(%rbp), %rdi
 472         xorl    %r14d, %r14d
 473         call    unlink@PLT
 474         movl    -188(%rbp), %r10d
 475         movq    -200(%rbp), %r11
 476         jmp     .L57
 477 .L80:
 478         movl    $11, %fs:(%r11)
 479         jmp     .L50
 480 .L78:
 481         movq    %r11, -200(%rbp)
 482         jmp     .L79
 483 .L59:
 484         movq    %r14, %rcx
 485         movl    %r10d, %edx
 486         movq    %r12, %rsi
 487         movq    %rbx, %rdi
 488         movq    %r11, -200(%rbp)
 489         movl    %r10d, -188(%rbp)
 490         call    check_add_mapping
 491         movq    -184(%rbp), %rdi
 492         movq    %rax, %r14
 493         call    unlink@PLT
 494         movl    -188(%rbp), %r10d
 495         movq    -200(%rbp), %r11
 496         jmp     .L44
 497 .L61:
 498         call    unlink@PLT
 499         movl    -188(%rbp), %r10d
 500         movl    %r10d, %edi
 501         call    __libc_close@PLT
 502         jmp     .L41
 503         .size   sem_open, .-sem_open
 504         .globl  __sem_mappings_lock
 505         .bss
 506         .align 4
 507         .type   __sem_mappings_lock, @object
 508         .size   __sem_mappings_lock, 4
 509 __sem_mappings_lock:
 510         .zero   4
 511         .comm   __sem_mappings,8,8
 512         .weak   __pthread_setcancelstate