[Bug sanitizer/59410] tsan tests fail with address randomization disabled

[kcc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59410

--- Comment #20 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
> > 
> > # readelf -lW a.out
> 
> Your address must be sensible.  Otherwise kernel will ignore it.
> Please try "-Ttext-segment 0x855555000000".

How is 0x855555000000 censible if it's beyond the address space? 
(Or I miss something?)

Anyway, here is an experiment that proves that on my box 
-Ttext-segment is ignored if ASLR is off. 

% cat print_main.cc 
#include <stdio.h>
int main() {
  printf("main: %p\n", &main);
}
% g++ print_main.cc -fPIE -pie  -Wl,-Ttext-segment=0x6ABC55000000 &&  ./a.out
main: 0x6abc5500072c
% g++ print_main.cc -fPIE -pie  -Wl,-Ttext-segment=0x6ABC55000000 &&  setarch
x86_64 -R ./a.out
main: 0x55555555472c
% readelf -lW ./a.out 

Elf file type is DYN (Shared object file)
Entry point 0x6abc55000630
There are 9 program headers, starting at offset 64

Program Headers:
  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz
  Flg Align
  PHDR           0x000040 0x00006abc55000040 0x00006abc55000040 0x0001f8
0x0001f8 R E 0x8
  INTERP         0x000238 0x00006abc55000238 0x00006abc55000238 0x00001c
0x00001c R   0x1
      [Requesting program interpreter: /lib64/ld-linux-x86-64.so.2]
  LOAD           0x000000 0x00006abc55000000 0x00006abc55000000 0x00091c
0x00091c R E 0x200000
  LOAD           0x000e00 0x00006abc55200e00 0x00006abc55200e00 0x000228
0x000238 RW  0x200000
  DYNAMIC        0x000e28 0x00006abc55200e28 0x00006abc55200e28 0x000190
0x000190 RW  0x8
  NOTE           0x000254 0x00006abc55000254 0x00006abc55000254 0x000044
0x000044 R   0x4
  GNU_EH_FRAME   0x000848 0x00006abc55000848 0x00006abc55000848 0x00002c
0x00002c R   0x4
  GNU_STACK      0x000000 0x0000000000000000 0x0000000000000000 0x000000
0x000000 RW  0x8
  GNU_RELRO      0x000e00 0x00006abc55200e00 0x00006abc55200e00 0x000200
0x000200 R   0x1

 Section to Segment mapping:
  Segment Sections...
   00     
   01     .interp 
   02     .interp .note.ABI-tag .note.gnu.build-id .gnu.hash .dynsym .dynstr
.gnu.version .gnu.version_r .rela.dyn .rela.plt .init .plt .text .fini .rodata
.eh_frame_hdr .eh_frame 
   03     .ctors .dtors .jcr .dynamic .got .got.plt .data .bss 
   04     .dynamic 
   05     .note.ABI-tag .note.gnu.build-id 
   06     .eh_frame_hdr 
   07     
   08     .ctors .dtors .jcr .dynamic .got