[Bug stdio/33183] FAIL: ./debug/tst-sprintf-fortify-rdonly-static

[danglin at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=33183

--- Comment #6 from John David Anglin <danglin at gcc dot gnu.org> ---
It seems check_relro fails and returns readonly_area_writable:

(gdb) frame 1
#1  _dl_readonly_area (ptr=0xb93b8 <writeable_format>, size=9)
    at dl-readonly-area.c:66
66                    return check_relro (l, ptr_start, ptr_end);
(gdb) p from
$11 = 753664
(gdb) p/x from
$12 = 0xb8000
(gdb) p/x to
$13 = 0xbd000
(gdb) p/x ptr_start
$14 = 0xb93b8
(gdb) p/x ptr_end
$15 = 0xb93c1
(gdb) p ph->p_flags
$16 = 6

dave@mx3210:/proc/22242$ cat maps
00010000-000b8000 r-xp 00000000 103:01 47767909                         
/home/dave/gnu/glibc/objdir/debug/tst-sprintf-fortify-rdonly-static
000b8000-000bd000 rw-p 000a8000 103:01 47767909                         
/home/dave/gnu/glibc/objdir/debug/tst-sprintf-fortify-rdonly-static

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  LOAD           0x000000 0x00010000 0x00010000 0xa7e70 0xa7e70 R E 0x1000
  LOAD           0x0a8000 0x000b8000 0x000b8000 0x044c0 0x07ad0 RW  0x1000
  NOTE           0x0000f4 0x000100f4 0x000100f4 0x00024 0x00024 R   0x4
  NOTE           0x0a7e50 0x000b7e50 0x000b7e50 0x00020 0x00020 R   0x4
  TLS            0x0a8000 0x000b8000 0x000b8000 0x00018 0x0002c R   0x4
  GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x10

 Section to Segment mapping:
  Segment Sections...
   00     .note.gnu.build-id .init .text .fini .rodata .PARISC.unwind .eh_frame
.gcc_except_table .note.ABI-tag
   01     .tdata .init_array .fini_array .data.rel.ro .data .got .bss
   02     .note.gnu.build-id
   03     .note.ABI-tag
   04     .tdata .tbss
   05

It looks like the problem is data.rel.ro is in a writable segment.  Need
to investigate more but this looks like a binutils issue.

-- 
You are receiving this mail because:
You are on the CC list for the bug.