• Calvin P (79/79) Dec 02 2020 I try find a memory issue with ldc -betterC -g -fsanitize=address

Calvin P <cloudlessapp gmail.com> writes:

I try find a memory issue with ldc -betterC -g -fsanitize=address 
-disable-fp-elim, get invalid path to external symbolizer!

Is there a way to print the symbol and line ?



=================================================================
==113433==ERROR: AddressSanitizer: heap-buffer-overflow on 
address 0x6060000008a0 at pc 0x00000070dcf2 bp 0x7ffedf7514c0 sp 
0x7ffedf7514b8
WRITE of size 8 at 0x6060000008a0 thread T0
==113433==WARNING: invalid path to external symbolizer!
==113433==WARNING: Failed to use and restart external symbolizer!


















0x6060000008a0 is located 0 bytes to the right of 64-byte region 
[0x606000000860,0x6060000008a0)
allocated by thread T0 here:














SUMMARY: AddressSanitizer: heap-buffer-overflow 
(/root/ncore+0x70dcf1)
Shadow bytes around the buggy address:
   0x0c0c7fff80c0: fa fa fa fa fd fd fd fd fd fd fd fd fa fa fa fa
   0x0c0c7fff80d0: 00 00 00 00 00 00 00 05 fa fa fa fa fd fd fd fd
   0x0c0c7fff80e0: fd fd fd fa fa fa fa fa fd fd fd fd fd fd fd fa
   0x0c0c7fff80f0: fa fa fa fa fd fd fd fd fd fd fd fa fa fa fa fa
   0x0c0c7fff8100: fd fd fd fd fd fd fd fa fa fa fa fa 00 00 00 00
=>0x0c0c7fff8110: 00 00 00 00[fa]fa fa fa 00 00 00 00 00 00 00 07
   0x0c0c7fff8120: fa fa fa fa fd fd fd fd fd fd fd fd fa fa fa fa
   0x0c0c7fff8130: fd fd fd fd fd fd fd fd fa fa fa fa fd fd fd fd
   0x0c0c7fff8140: fd fd fd fd fa fa fa fa fd fd fd fd fd fd fd fd
   0x0c0c7fff8150: fa fa fa fa 00 00 00 00 00 00 00 00 fa fa fa fa
   0x0c0c7fff8160: fd fd fd fd fd fd fd fd fa fa fa fa 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application 
bytes):
   Addressable:           00
   Partially addressable: 01 02 03 04 05 06 07
   Heap left redzone:       fa
   Freed heap region:       fd
   Stack left redzone:      f1
   Stack mid redzone:       f2
   Stack right redzone:     f3
   Stack after return:      f5
   Stack use after scope:   f8
   Global redzone:          f9
   Global init order:       f6
   Poisoned by user:        f7
   Container overflow:      fc
   Array cookie:            ac
   Intra object redzone:    bb
   ASan internal:           fe
   Left alloca redzone:     ca
   Right alloca redzone:    cb
   Shadow gap:              cc
==113433==ABORTING