[Bug default/27633] New: low mem memory leaks

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27633

            Bug ID: 27633
           Summary: low mem memory leaks
           Product: dwz
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: default
          Assignee: nobody at sourceware dot org
          Reporter: vries at gcc dot gnu.org
                CC: dwz at sourceware dot org
  Target Milestone: ---

When building dwz with address sanitizer, we run into:
...
$ ./dwz hello -o hello.z -l0

=================================================================
==22607==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 432 byte(s) in 6 object(s) allocated from:
    #0 0x7f560af846d8 in __interceptor_calloc (/usr/lib64/libasan.so.4+0xdc6d8)
    #1 0x475db1 in htab_try_create /home/vries/dwz/dwz.git/hashtab.c:164
    #2 0x406ed6 in read_abbrev /home/vries/dwz/dwz.git/dwz.c:1296
    #3 0x42bca9 in read_debug_info /home/vries/dwz/dwz.git/dwz.c:6818
    #4 0x4608cb in read_dwarf /home/vries/dwz/dwz.git/dwz.c:13706
    #5 0x46ef9a in dwz /home/vries/dwz/dwz.git/dwz.c:15383
    #6 0x474a27 in dwz_one_file /home/vries/dwz/dwz.git/dwz.c:16279
    #7 0x475951 in main /home/vries/dwz/dwz.git/dwz.c:16450
    #8 0x7f560a8f9349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 72 byte(s) in 1 object(s) allocated from:
    #0 0x7f560af846d8 in __interceptor_calloc (/usr/lib64/libasan.so.4+0xdc6d8)
    #1 0x475db1 in htab_try_create /home/vries/dwz/dwz.git/hashtab.c:164
    #2 0x42a8fd in read_debug_info /home/vries/dwz/dwz.git/dwz.c:6634
    #3 0x4608cb in read_dwarf /home/vries/dwz/dwz.git/dwz.c:13706
    #4 0x46ef9a in dwz /home/vries/dwz/dwz.git/dwz.c:15383
    #5 0x474a27 in dwz_one_file /home/vries/dwz/dwz.git/dwz.c:16279
    #6 0x475951 in main /home/vries/dwz/dwz.git/dwz.c:16450
    #7 0x7f560a8f9349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 4072 byte(s) in 1 object(s) allocated from:
    #0 0x7f560af846d8 in __interceptor_calloc (/usr/lib64/libasan.so.4+0xdc6d8)
    #1 0x475dd7 in htab_try_create /home/vries/dwz/dwz.git/hashtab.c:168
    #2 0x42a8fd in read_debug_info /home/vries/dwz/dwz.git/dwz.c:6634
    #3 0x4608cb in read_dwarf /home/vries/dwz/dwz.git/dwz.c:13706
    #4 0x46ef9a in dwz /home/vries/dwz/dwz.git/dwz.c:15383
    #5 0x474a27 in dwz_one_file /home/vries/dwz/dwz.git/dwz.c:16279
    #6 0x475951 in main /home/vries/dwz/dwz.git/dwz.c:16450
    #7 0x7f560a8f9349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 2928 byte(s) in 6 object(s) allocated from:
    #0 0x7f560af846d8 in __interceptor_calloc (/usr/lib64/libasan.so.4+0xdc6d8)
    #1 0x475dd7 in htab_try_create /home/vries/dwz/dwz.git/hashtab.c:168
    #2 0x406ed6 in read_abbrev /home/vries/dwz/dwz.git/dwz.c:1296
    #3 0x42bca9 in read_debug_info /home/vries/dwz/dwz.git/dwz.c:6818
    #4 0x4608cb in read_dwarf /home/vries/dwz/dwz.git/dwz.c:13706
    #5 0x46ef9a in dwz /home/vries/dwz/dwz.git/dwz.c:15383
    #6 0x474a27 in dwz_one_file /home/vries/dwz/dwz.git/dwz.c:16279
    #7 0x475951 in main /home/vries/dwz/dwz.git/dwz.c:16450
    #8 0x7f560a8f9349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 7504 byte(s) leaked in 14 allocation(s).
...

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