stdlib/system.shared.s

   1         .text
   2 #APP
   3         memmove = __GI_memmove
   4         memset = __GI_memset
   5         memcpy = __GI_memcpy
   6         .section        .rodata.str1.1,"aMS",@progbits,1
   7 .LC0:
   8         .string "sh"
   9 .LC1:
  10         .string "-c"
  11 .LC2:
  12         .string "/bin/sh"
  13 #NO_APP
  14         .text
  15         .p2align 4,,15
  16         .type   do_system, @function
  17 do_system:
  18         pushq   %r13
  19         pushq   %r12
  20         pushq   %rbp
  21         pushq   %rbx
  22         movq    %rdi, %rbp
  23         subq    $872, %rsp
  24         movl    $-1, 8(%rsp)
  25         movq    $1, 368(%rsp)
  26         movl    $0, 504(%rsp)
  27         movq    $0, 376(%rsp)
  28 #APP
  29 # 118 "../sysdeps/posix/system.c" 1
  30         movl %fs:24,%eax
  31 # 0 "" 2
  32 #NO_APP
  33         testl   %eax, %eax
  34         jne     .L2
  35         movl    $1, %edx
  36 #APP
  37 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  38         cmpxchgl %edx, lock(%rip)
  39 # 0 "" 2
  40 #NO_APP
  41 .L3:
  42         movl    sa_refcntr(%rip), %eax
  43         leaq    368(%rsp), %rbx
  44         leal    1(%rax), %edx
  45         testl   %eax, %eax
  46         movl    %edx, sa_refcntr(%rip)
  47         je      .L34
  48 .L4:
  49 #APP
  50 # 125 "../sysdeps/posix/system.c" 1
  51         movl %fs:24,%eax
  52 # 0 "" 2
  53 #NO_APP
  54         testl   %eax, %eax
  55         jne     .L5
  56         subl    $1, lock(%rip)
  57 .L6:
  58         leaq    112(%rsp), %r12
  59         leaq    8(%rbx), %rsi
  60         xorl    %edi, %edi
  61         orq     $65536, 376(%rsp)
  62         movq    %r12, %rdx
  63         call    __GI___sigprocmask
  64         cmpq    $1, intr(%rip)
  65         movq    $0, 240(%rsp)
  66         je      .L7
  67         movq    $2, 240(%rsp)
  68 .L7:
  69         cmpq    $1, quit(%rip)
  70         je      .L8
  71         orq     $4, 240(%rsp)
  72 .L8:
  73         leaq    528(%rsp), %rbx
  74         movq    %rbx, %rdi
  75         call    __posix_spawnattr_init
  76         movq    %r12, %rsi
  77         movq    %rbx, %rdi
  78         call    __posix_spawnattr_setsigmask
  79         leaq    240(%rsp), %rsi
  80         movq    %rbx, %rdi
  81         call    __posix_spawnattr_setsigdefault
  82         movl    $12, %esi
  83         movq    %rbx, %rdi
  84         call    __posix_spawnattr_setflags
  85         movq    __environ@GOTPCREL(%rip), %rax
  86         leaq    12(%rsp), %rdi
  87         leaq    48(%rsp), %r8
  88         leaq    .LC2(%rip), %rsi
  89         xorl    %edx, %edx
  90         movq    %rbx, %rcx
  91         movq    %rbp, 64(%rsp)
  92         movq    $0, 72(%rsp)
  93         movq    (%rax), %r9
  94         leaq    .LC0(%rip), %rax
  95         movq    %rax, 48(%rsp)
  96         leaq    .LC1(%rip), %rax
  97         movq    %rax, 56(%rsp)
  98         call    __GI___posix_spawn
  99         movq    %rbx, %rdi
 100         movl    %eax, %ebp
 101         call    __posix_spawnattr_destroy
 102         testl   %ebp, %ebp
 103         jne     .L9
 104         leaq    quit(%rip), %rax
 105         movl    __libc_pthread_functions_init(%rip), %r13d
 106         movl    12(%rsp), %edi
 107         movq    %rax, 16(%rsp)
 108         leaq    intr(%rip), %rax
 109         testl   %r13d, %r13d
 110         movl    %edi, 32(%rsp)
 111         movq    %rax, 24(%rsp)
 112         je      .L10
 113         movq    184+__libc_pthread_functions(%rip), %rax
 114         leaq    80(%rsp), %rdi
 115         leaq    16(%rsp), %rdx
 116 #APP
 117 # 167 "../sysdeps/posix/system.c" 1
 118         ror $2*8+1, %rax
 119 xor %fs:48, %rax
 120 # 0 "" 2
 121 #NO_APP
 122         leaq    cancel_handler(%rip), %rsi
 123         call    *%rax
 124         movl    12(%rsp), %edi
 125 .L11:
 126         leaq    8(%rsp), %rbx
 127         jmp     .L13
 128         .p2align 4,,10
 129         .p2align 3
 130 .L35:
 131         movq    __libc_errno@gottpoff(%rip), %rdx
 132         cmpl    $4, %fs:(%rdx)
 133         jne     .L14
 134 .L13:
 135         xorl    %edx, %edx
 136         movq    %rbx, %rsi
 137         call    __GI___waitpid
 138         cmpl    $-1, %eax
 139         movl    12(%rsp), %edi
 140         je      .L35
 141 .L14:
 142         cmpl    %edi, %eax
 143         je      .L15
 144         movl    $-1, 8(%rsp)
 145 .L15:
 146         testl   %r13d, %r13d
 147         je      .L17
 148         movq    192+__libc_pthread_functions(%rip), %rax
 149         leaq    80(%rsp), %rdi
 150         xorl    %esi, %esi
 151 #APP
 152 # 175 "../sysdeps/posix/system.c" 1
 153         ror $2*8+1, %rax
 154 xor %fs:48, %rax
 155 # 0 "" 2
 156 #NO_APP
 157         call    *%rax
 158         jmp     .L17
 159         .p2align 4,,10
 160         .p2align 3
 161 .L9:
 162         movl    $32512, 8(%rsp)
 163 .L17:
 164 #APP
 165 # 183 "../sysdeps/posix/system.c" 1
 166         movl %fs:24,%eax
 167 # 0 "" 2
 168 #NO_APP
 169         testl   %eax, %eax
 170         jne     .L18
 171         movl    $1, %edx
 172 #APP
 173 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
 174         cmpxchgl %edx, lock(%rip)
 175 # 0 "" 2
 176 #NO_APP
 177 .L19:
 178         subl    $1, sa_refcntr(%rip)
 179         je      .L36
 180 .L20:
 181 #APP
 182 # 192 "../sysdeps/posix/system.c" 1
 183         movl %fs:24,%eax
 184 # 0 "" 2
 185 #NO_APP
 186         testl   %eax, %eax
 187         jne     .L21
 188         subl    $1, lock(%rip)
 189 .L22:
 190         testl   %ebp, %ebp
 191         je      .L23
 192         movq    __libc_errno@gottpoff(%rip), %rax
 193         movl    %ebp, %fs:(%rax)
 194 .L23:
 195         movl    8(%rsp), %eax
 196         addq    $872, %rsp
 197         popq    %rbx
 198         popq    %rbp
 199         popq    %r12
 200         popq    %r13
 201         ret
 202         .p2align 4,,10
 203         .p2align 3
 204 .L34:
 205         leaq    intr(%rip), %rdx
 206         movq    %rbx, %rsi
 207         movl    $2, %edi
 208         call    __GI___sigaction
 209         leaq    quit(%rip), %rdx
 210         movq    %rbx, %rsi
 211         movl    $3, %edi
 212         call    __GI___sigaction
 213         jmp     .L4
 214         .p2align 4,,10
 215         .p2align 3
 216 .L36:
 217         leaq    intr(%rip), %rsi
 218         xorl    %edx, %edx
 219         movl    $2, %edi
 220         call    __GI___sigaction
 221         leaq    quit(%rip), %rsi
 222         xorl    %edx, %edx
 223         movl    $3, %edi
 224         call    __GI___sigaction
 225         xorl    %edx, %edx
 226         movq    %r12, %rsi
 227         movl    $2, %edi
 228         call    __GI___sigprocmask
 229         jmp     .L20
 230         .p2align 4,,10
 231         .p2align 3
 232 .L10:
 233         leaq    cancel_handler(%rip), %rax
 234         movq    %rax, 80(%rsp)
 235         leaq    16(%rsp), %rax
 236         movq    %rax, 88(%rsp)
 237         jmp     .L11
 238         .p2align 4,,10
 239         .p2align 3
 240 .L18:
 241         xorl    %eax, %eax
 242         movl    $1, %edx
 243         lock cmpxchgl   %edx, lock(%rip)
 244         je      .L19
 245         leaq    lock(%rip), %rdi
 246         call    __lll_lock_wait_private
 247         jmp     .L19
 248         .p2align 4,,10
 249         .p2align 3
 250 .L5:
 251         xorl    %eax, %eax
 252 #APP
 253 # 125 "../sysdeps/posix/system.c" 1
 254         xchgl %eax, lock(%rip)
 255 # 0 "" 2
 256 #NO_APP
 257         cmpl    $1, %eax
 258         jle     .L6
 259         xorl    %r10d, %r10d
 260         movl    $1, %edx
 261         movl    $129, %esi
 262         leaq    lock(%rip), %rdi
 263         movl    $202, %eax
 264 #APP
 265 # 125 "../sysdeps/posix/system.c" 1
 266         syscall
 267
 268 # 0 "" 2
 269 #NO_APP
 270         jmp     .L6
 271         .p2align 4,,10
 272         .p2align 3
 273 .L21:
 274         xorl    %eax, %eax
 275 #APP
 276 # 192 "../sysdeps/posix/system.c" 1
 277         xchgl %eax, lock(%rip)
 278 # 0 "" 2
 279 #NO_APP
 280         cmpl    $1, %eax
 281         jle     .L22
 282         xorl    %r10d, %r10d
 283         movl    $1, %edx
 284         movl    $129, %esi
 285         leaq    lock(%rip), %rdi
 286         movl    $202, %eax
 287 #APP
 288 # 192 "../sysdeps/posix/system.c" 1
 289         syscall
 290
 291 # 0 "" 2
 292 #NO_APP
 293         jmp     .L22
 294         .p2align 4,,10
 295         .p2align 3
 296 .L2:
 297         xorl    %eax, %eax
 298         movl    $1, %edx
 299         lock cmpxchgl   %edx, lock(%rip)
 300         je      .L3
 301         leaq    lock(%rip), %rdi
 302         call    __lll_lock_wait_private
 303         jmp     .L3
 304         .size   do_system, .-do_system
 305         .p2align 4,,15
 306         .type   cancel_handler, @function
 307 cancel_handler:
 308         pushq   %rbx
 309         movl    $9, %esi
 310         movq    %rdi, %rbx
 311         movl    $62, %eax
 312         subq    $16, %rsp
 313         movl    16(%rdi), %edi
 314 #APP
 315 # 43 "../sysdeps/unix/sysv/linux/not-errno.h" 1
 316         syscall
 317
 318 # 0 "" 2
 319 #NO_APP
 320         movl    __libc_pthread_functions_init(%rip), %edx
 321         testl   %edx, %edx
 322         je      .L40
 323         movq    104+__libc_pthread_functions(%rip), %rax
 324         leaq    12(%rsp), %rsi
 325         movl    $1, %edi
 326 #APP
 327 # 85 "../sysdeps/posix/system.c" 1
 328         ror $2*8+1, %rax
 329 xor %fs:48, %rax
 330 # 0 "" 2
 331 #NO_APP
 332         call    *%rax
 333         jmp     .L40
 334         .p2align 4,,10
 335         .p2align 3
 336 .L49:
 337         movq    __libc_errno@gottpoff(%rip), %rax
 338         cmpl    $4, %fs:(%rax)
 339         jne     .L39
 340 .L40:
 341         movl    16(%rbx), %edi
 342         xorl    %edx, %edx
 343         xorl    %esi, %esi
 344         call    __GI___waitpid
 345         cmpl    $-1, %eax
 346         je      .L49
 347 .L39:
 348         movl    __libc_pthread_functions_init(%rip), %eax
 349         testl   %eax, %eax
 350         je      .L41
 351         movq    104+__libc_pthread_functions(%rip), %rax
 352         xorl    %esi, %esi
 353         movl    12(%rsp), %edi
 354 #APP
 355 # 88 "../sysdeps/posix/system.c" 1
 356         ror $2*8+1, %rax
 357 xor %fs:48, %rax
 358 # 0 "" 2
 359 #NO_APP
 360         call    *%rax
 361 .L41:
 362 #APP
 363 # 90 "../sysdeps/posix/system.c" 1
 364         movl %fs:24,%eax
 365 # 0 "" 2
 366 #NO_APP
 367         testl   %eax, %eax
 368         jne     .L42
 369         movl    $1, %edx
 370 #APP
 371 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
 372         cmpxchgl %edx, lock(%rip)
 373 # 0 "" 2
 374 #NO_APP
 375 .L43:
 376         subl    $1, sa_refcntr(%rip)
 377         je      .L50
 378 .L44:
 379 #APP
 380 # 96 "../sysdeps/posix/system.c" 1
 381         movl %fs:24,%eax
 382 # 0 "" 2
 383 #NO_APP
 384         testl   %eax, %eax
 385         jne     .L45
 386         subl    $1, lock(%rip)
 387 .L37:
 388         addq    $16, %rsp
 389         popq    %rbx
 390         ret
 391         .p2align 4,,10
 392         .p2align 3
 393 .L50:
 394         movq    (%rbx), %rsi
 395         xorl    %edx, %edx
 396         movl    $3, %edi
 397         call    __GI___sigaction
 398         movq    8(%rbx), %rsi
 399         xorl    %edx, %edx
 400         movl    $2, %edi
 401         call    __GI___sigaction
 402         jmp     .L44
 403         .p2align 4,,10
 404         .p2align 3
 405 .L42:
 406         xorl    %eax, %eax
 407         movl    $1, %edx
 408         lock cmpxchgl   %edx, lock(%rip)
 409         je      .L43
 410         leaq    lock(%rip), %rdi
 411         call    __lll_lock_wait_private
 412         jmp     .L43
 413         .p2align 4,,10
 414         .p2align 3
 415 .L45:
 416         xorl    %eax, %eax
 417 #APP
 418 # 96 "../sysdeps/posix/system.c" 1
 419         xchgl %eax, lock(%rip)
 420 # 0 "" 2
 421 #NO_APP
 422         cmpl    $1, %eax
 423         jle     .L37
 424         xorl    %r10d, %r10d
 425         movl    $1, %edx
 426         movl    $129, %esi
 427         leaq    lock(%rip), %rdi
 428         movl    $202, %eax
 429 #APP
 430 # 96 "../sysdeps/posix/system.c" 1
 431         syscall
 432
 433 # 0 "" 2
 434 #NO_APP
 435         jmp     .L37
 436         .size   cancel_handler, .-cancel_handler
 437         .section        .rodata.str1.1
 438 .LC3:
 439         .string "exit 0"
 440         .text
 441         .p2align 4,,15
 442         .globl  __libc_system
 443         .type   __libc_system, @function
 444 __libc_system:
 445         testq   %rdi, %rdi
 446         je      .L55
 447         jmp     do_system
 448         .p2align 4,,10
 449         .p2align 3
 450 .L55:
 451         leaq    .LC3(%rip), %rdi
 452         subq    $8, %rsp
 453         call    do_system
 454         testl   %eax, %eax
 455         sete    %al
 456         addq    $8, %rsp
 457         movzbl  %al, %eax
 458         ret
 459         .size   __libc_system, .-__libc_system
 460         .weak   system
 461         .set    system,__libc_system
 462         .local  lock
 463         .comm   lock,4,4
 464         .local  sa_refcntr
 465         .comm   sa_refcntr,4,4
 466         .local  quit
 467         .comm   quit,152,32
 468         .local  intr
 469         .comm   intr,152,32
 470         .hidden __lll_lock_wait_private
 471         .hidden __libc_pthread_functions
 472         .hidden __libc_pthread_functions_init
 473         .hidden __posix_spawnattr_destroy
 474         .hidden __posix_spawnattr_setflags
 475         .hidden __posix_spawnattr_setsigdefault
 476         .hidden __posix_spawnattr_setsigmask
 477         .hidden __posix_spawnattr_init