io/ttyname.shared.s

   1         .text
   2 #APP
   3         memmove = __GI_memmove
   4         memset = __GI_memset
   5         memcpy = __GI_memcpy
   6         .section __libc_freeres_ptrs, "aw", %nobits
   7         .previous
   8         .section __libc_freeres_ptrs, "aw", %nobits
   9         .previous
  10         .section        .rodata.str1.1,"aMS",@progbits,1
  11 .LC0:
  12         .string "stdin"
  13 .LC1:
  14         .string "stdout"
  15 .LC2:
  16         .string "stderr"
  17 #NO_APP
  18         .section        .text.compat,"ax",@progbits
  19         .p2align 4,,15
  20         .type   getttyname, @function
  21 getttyname:
  22         pushq   %r15
  23         pushq   %r14
  24         pushq   %r13
  25         pushq   %r12
  26         movq    %rcx, %r13
  27         pushq   %rbp
  28         pushq   %rbx
  29         movq    %rdi, %rbx
  30         movq    %rsi, %rbp
  31         subq    $200, %rsp
  32         movq    %rdi, 16(%rsp)
  33         movl    %edx, 36(%rsp)
  34         call    __GI_strlen
  35         movq    %rbx, %rdi
  36         movq    %rax, 24(%rsp)
  37         leaq    1(%rax), %r15
  38         call    __opendir
  39         testq   %rax, %rax
  40         je      .L23
  41         cmpq    %r15, namelen.8896(%rip)
  42         movq    %rax, %rbx
  43         ja      .L24
  44 .L4:
  45         leaq    48(%rsp), %rax
  46         leaq    .LC0(%rip), %r12
  47         movq    %rax, 8(%rsp)
  48         .p2align 4,,10
  49         .p2align 3
  50 .L5:
  51         movq    %rbx, %rdi
  52         call    __GI___readdir64
  53         testq   %rax, %rax
  54         je      .L25
  55         movq    8(%rbp), %rdx
  56         cmpq    %rdx, (%rax)
  57         je      .L6
  58         movl    0(%r13), %edx
  59         testl   %edx, %edx
  60         je      .L5
  61 .L6:
  62         leaq    19(%rax), %r14
  63         movl    $6, %ecx
  64         movq    %r12, %rdi
  65         movq    %r14, %rsi
  66         repz cmpsb
  67         je      .L5
  68         leaq    .LC1(%rip), %rdi
  69         movl    $7, %ecx
  70         movq    %r14, %rsi
  71         repz cmpsb
  72         je      .L5
  73         leaq    .LC2(%rip), %rdi
  74         movl    $7, %ecx
  75         movq    %r14, %rsi
  76         repz cmpsb
  77         je      .L5
  78         movzwl  16(%rax), %ecx
  79         movq    getttyname_name(%rip), %r8
  80         addq    %rax, %rcx
  81         subq    %r14, %rcx
  82         leaq    (%r15,%rcx), %rax
  83         cmpq    namelen.8896(%rip), %rax
  84         movq    %rax, (%rsp)
  85         jbe     .L8
  86         movq    %r8, %rdi
  87         movq    %rcx, 40(%rsp)
  88         call    free@PLT
  89         movq    (%rsp), %rax
  90         leaq    (%rax,%rax), %rdi
  91         movq    %rdi, namelen.8896(%rip)
  92         call    malloc@PLT
  93         testq   %rax, %rax
  94         movq    %rax, getttyname_name(%rip)
  95         movq    40(%rsp), %rcx
  96         je      .L26
  97         movq    24(%rsp), %rdx
  98         movq    16(%rsp), %rsi
  99         movq    %rax, %rdi
 100         movq    %rcx, 40(%rsp)
 101         movq    %rax, (%rsp)
 102         call    __GI_mempcpy@PLT
 103         movq    40(%rsp), %rcx
 104         movq    (%rsp), %r8
 105         movb    $47, (%rax)
 106 .L8:
 107         leaq    (%r8,%r15), %rdi
 108         movq    %rcx, %rdx
 109         movq    %r14, %rsi
 110         movq    %r8, (%rsp)
 111         call    __GI_memcpy@PLT
 112         movq    (%rsp), %r8
 113         movq    8(%rsp), %rsi
 114         movq    %r8, %rdi
 115         call    __GI___stat64
 116         testl   %eax, %eax
 117         jne     .L5
 118         movq    8(%rbp), %rax
 119         cmpq    %rax, 56(%rsp)
 120         jne     .L5
 121         movq    0(%rbp), %rax
 122         cmpq    %rax, 48(%rsp)
 123         jne     .L5
 124         movl    72(%rsp), %eax
 125         andl    $61440, %eax
 126         cmpl    $8192, %eax
 127         jne     .L5
 128         movq    40(%rbp), %rax
 129         cmpq    %rax, 88(%rsp)
 130         jne     .L5
 131         movq    %rbx, %rdi
 132         call    __closedir
 133         movq    __libc_errno@gottpoff(%rip), %rax
 134         movl    36(%rsp), %ebx
 135         movq    getttyname_name(%rip), %r14
 136         movl    %ebx, %fs:(%rax)
 137         jmp     .L1
 138         .p2align 4,,10
 139         .p2align 3
 140 .L25:
 141         movq    %rbx, %rdi
 142         xorl    %r14d, %r14d
 143         call    __closedir
 144         movq    __libc_errno@gottpoff(%rip), %rax
 145         movl    36(%rsp), %ebx
 146         movl    %ebx, %fs:(%rax)
 147 .L1:
 148         addq    $200, %rsp
 149         movq    %r14, %rax
 150         popq    %rbx
 151         popq    %rbp
 152         popq    %r12
 153         popq    %r13
 154         popq    %r14
 155         popq    %r15
 156         ret
 157         .p2align 4,,10
 158         .p2align 3
 159 .L24:
 160         movq    24(%rsp), %rdx
 161         movq    16(%rsp), %rsi
 162         movq    getttyname_name(%rip), %rdi
 163         call    __GI_mempcpy@PLT
 164         movb    $47, (%rax)
 165         jmp     .L4
 166 .L23:
 167         movl    $-1, 0(%r13)
 168         xorl    %r14d, %r14d
 169         jmp     .L1
 170 .L26:
 171         movl    $-1, 0(%r13)
 172         movq    %rbx, %rdi
 173         movq    %rax, %r14
 174         call    __closedir
 175         jmp     .L1
 176         .size   getttyname, .-getttyname
 177         .section        .rodata.str1.1
 178 .LC3:
 179         .string "(unreachable)"
 180 .LC4:
 181         .string "/dev/pts"
 182 .LC5:
 183         .string "/dev"
 184         .text
 185         .p2align 4,,15
 186         .globl  ttyname
 187         .type   ttyname, @function
 188 ttyname:
 189         pushq   %r14
 190         pushq   %r13
 191         pushq   %r12
 192         pushq   %rbp
 193         pushq   %rbx
 194         movl    %edi, %ebx
 195         subq    $400, %rsp
 196         movq    __libc_errno@gottpoff(%rip), %rbp
 197         leaq    48(%rsp), %rsi
 198         movl    $0, 12(%rsp)
 199         movl    %fs:0(%rbp), %r14d
 200         call    __GI___tcgetattr
 201         testl   %eax, %eax
 202         js      .L56
 203         leaq    112(%rsp), %r13
 204         movl    %ebx, %edi
 205         movq    %r13, %rsi
 206         call    __GI___fstat64
 207         testl   %eax, %eax
 208         js      .L56
 209         leaq    16(%rsp), %r12
 210         movabsq $7310238724270485551, %rax
 211         xorl    %ecx, %ecx
 212         movq    %rax, 16(%rsp)
 213         movl    $10, %edx
 214         movl    $12132, %eax
 215         leaq    14(%r12), %rsi
 216         movslq  %ebx, %rdi
 217         movl    $1714382444, 24(%rsp)
 218         movw    %ax, 28(%rsp)
 219         movb    $0, 30(%rsp)
 220         call    _fitoa_word
 221         movq    buflen.8909(%rip), %rdx
 222         movb    $0, (%rax)
 223         testq   %rdx, %rdx
 224         je      .L57
 225         movq    ttyname_buf(%rip), %rax
 226 .L32:
 227         movq    %rax, %rsi
 228         movq    %r12, %rdi
 229         call    __readlink
 230         cmpq    $-1, %rax
 231         je      .L48
 232         cmpq    buflen.8909(%rip), %rax
 233         movq    %rax, %rbx
 234         jnb     .L56
 235         cmpq    $13, %rax
 236         movq    ttyname_buf(%rip), %rcx
 237         jbe     .L34
 238         movabsq $7521962890978293032, %rax
 239         cmpq    %rax, (%rcx)
 240         je      .L58
 241 .L34:
 242         movb    $0, (%rcx,%rbx)
 243         cmpb    $47, (%rcx)
 244         leaq    256(%rsp), %rbx
 245         je      .L37
 246 .L38:
 247         movl    $1, %r12d
 248 .L33:
 249         leaq    .LC4(%rip), %rdi
 250         movq    %rbx, %rsi
 251         call    __GI___stat64
 252         testl   %eax, %eax
 253         jne     .L40
 254         movl    280(%rsp), %eax
 255         andl    $61440, %eax
 256         cmpl    $16384, %eax
 257         je      .L59
 258 .L40:
 259         cmpl    $-1, 12(%rsp)
 260         movl    %r14d, %fs:0(%rbp)
 261         je      .L45
 262         leaq    12(%rsp), %rbx
 263 .L44:
 264         leaq    .LC5(%rip), %rdi
 265         movq    %rbx, %rcx
 266         movl    %r14d, %edx
 267         movq    %r13, %rsi
 268         call    getttyname
 269         testq   %rax, %rax
 270         jne     .L27
 271         cmpl    $-1, 12(%rsp)
 272         je      .L45
 273         leaq    .LC5(%rip), %rdi
 274         movl    %r14d, %edx
 275         movq    %rbx, %rcx
 276         movq    %r13, %rsi
 277         movl    $1, 12(%rsp)
 278         call    getttyname
 279         testq   %rax, %rax
 280         sete    %dl
 281         jmp     .L46
 282         .p2align 4,,10
 283         .p2align 3
 284 .L59:
 285         leaq    12(%rsp), %rbx
 286         leaq    .LC4(%rip), %rdi
 287         movl    %r14d, %edx
 288         movq    %r13, %rsi
 289         movq    %rbx, %rcx
 290         call    getttyname
 291         testq   %rax, %rax
 292         jne     .L27
 293         cmpl    $-1, 12(%rsp)
 294         jne     .L44
 295         .p2align 4,,10
 296         .p2align 3
 297 .L45:
 298         movl    $1, %edx
 299         xorl    %eax, %eax
 300 .L46:
 301         testl   %r12d, %r12d
 302         je      .L27
 303         testb   %dl, %dl
 304         je      .L27
 305         movq    152(%rsp), %rax
 306         movq    %rax, %rdx
 307         shrq    $32, %rax
 308         shrq    $8, %rdx
 309         andl    $-4096, %eax
 310         andl    $4095, %edx
 311         orl     %edx, %eax
 312         subl    $136, %eax
 313         cmpl    $7, %eax
 314         ja      .L56
 315         movl    $19, %fs:0(%rbp)
 316         .p2align 4,,10
 317         .p2align 3
 318 .L56:
 319         xorl    %eax, %eax
 320 .L27:
 321         addq    $400, %rsp
 322         popq    %rbx
 323         popq    %rbp
 324         popq    %r12
 325         popq    %r13
 326         popq    %r14
 327         ret
 328         .p2align 4,,10
 329         .p2align 3
 330 .L57:
 331         movl    $4096, %edi
 332         movq    $4095, buflen.8909(%rip)
 333         call    malloc@PLT
 334         testq   %rax, %rax
 335         movq    %rax, ttyname_buf(%rip)
 336         movl    $4095, %edx
 337         jne     .L32
 338         movq    $0, buflen.8909(%rip)
 339         jmp     .L27
 340         .p2align 4,,10
 341         .p2align 3
 342 .L37:
 343         movq    %rbx, %rsi
 344         movq    %rcx, %rdi
 345         call    __GI___stat64
 346         testl   %eax, %eax
 347         jne     .L38
 348         movq    264(%rsp), %rax
 349         cmpq    %rax, 120(%rsp)
 350         jne     .L38
 351         movq    112(%rsp), %rax
 352         cmpq    %rax, 256(%rsp)
 353         jne     .L38
 354         movl    280(%rsp), %eax
 355         andl    $61440, %eax
 356         cmpl    $8192, %eax
 357         jne     .L38
 358         movq    152(%rsp), %rax
 359         cmpq    %rax, 296(%rsp)
 360         jne     .L38
 361         movq    ttyname_buf(%rip), %rax
 362         jmp     .L27
 363         .p2align 4,,10
 364         .p2align 3
 365 .L58:
 366         cmpl    $1701601889, 8(%rcx)
 367         jne     .L34
 368         cmpb    $41, 12(%rcx)
 369         jne     .L34
 370         leaq    13(%rcx), %rsi
 371         subq    $13, %rbx
 372         movq    %rcx, %rdi
 373         movq    %rbx, %rdx
 374         call    __GI_memmove
 375         movq    %rax, %rcx
 376         jmp     .L34
 377         .p2align 4,,10
 378         .p2align 3
 379 .L48:
 380         xorl    %r12d, %r12d
 381         leaq    256(%rsp), %rbx
 382         jmp     .L33
 383         .size   ttyname, .-ttyname
 384         .local  namelen.8896
 385         .comm   namelen.8896,8,8
 386         .local  buflen.8909
 387         .comm   buflen.8909,8,8
 388         .section        __libc_freeres_ptrs
 389         #,"aw",@progbits
 390         .align 8
 391         .type   ttyname_buf, @object
 392         .size   ttyname_buf, 8
 393 ttyname_buf:
 394         .zero   8
 395         .align 8
 396         .type   getttyname_name, @object
 397         .size   getttyname_name, 8
 398 getttyname_name:
 399         .zero   8
 400         .hidden __readlink
 401         .hidden _fitoa_word
 402         .hidden __closedir
 403         .hidden __opendir