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#tls:4  tid reserved for thread slot

#tls:8  thread's stack low limit

#tls:12 thread's stack high limit

#tls:16 reseved for libc

__crt_start:

           movl  $68, %eax

           movl  $12, %ebx

           lea  __size_of_stack_reserve__, %ecx

           addl  $4095, %ecx       #load stack size

           andl  $-4096, %ecx      #align to page granularity

           int   $0x40             #and allocate

           testl %eax, %eax

           jz    1f

           movl %eax, %fs:8

           movl %ecx, %fs:12       #save stack base - low limit

                                   #save stack top  - high limit

           movl %ecx, %esp         #reload stack

           movl %esp, %ebx

           movl $-1, %ecx

           int $0x40

           movl %eax, %fs:0        #save pid

1:

           int3                    #trap to debugger