[Feedback] Main difficulties encountered with D

[Xavier Bigand]

Le 19/12/2013 23:02, Xavier Bigand a écrit :
> Le 19/12/2013 22:43, H. S. Teoh a écrit :
>> On Thu, Dec 19, 2013 at 10:35:05PM +0100, Xavier Bigand wrote:
>>> Hi,
>>>
>>> It's been a few months since I work on "DQuick" at a rate of a few
>>> minutes or hours from time to time. After working professionally
>>> with Java during a year I was really surprise to see D capable to
>>> compete a such language on productivity and providing much more
>>> features than C++.
>>>
>>> But because D and his compiler aren't as mature as c++ compilers, it
>>> can be really hard to debug our code, mainly when searching memory
>>> issues, because generated code by DMD isn't compatible with existing
>>> tools (Valgrind, DrMemory).
>> [...]
>>
>> What about gdc?
>>
>>
>> T
>>
> I also tried with gdc, and DrMemory and Valgrind doesn't works better
> with binaries generated with gdc. (I tried under Windows and Linux).


Here is both trace of DrMemory, first for dmd, second GDC :

E:\Dev\Personal\DQuick\data>drMemory E:\Dev\Personal\DQuick\data\image.exe
~~Dr.M~~ Dr. Memory version 1.6.0
~~Dr.M~~ Running "E:\Dev\Personal\DQuick\data\image.exe"
~~Dr.M~~
~~Dr.M~~ Error #1: LEAK 3214 direct bytes 0x02460368-0x02460ff6 + 0 
indirect bytes
~~Dr.M~~ # 0 replace_RtlAllocateHeap 
[d:\drmemory_package\common\alloc_replace.c:3048]
~~Dr.M~~ # 1 KERNELBASE.dll!GetEnvironmentStringsA+0x8b     (0x771c084e 
<KERNELBASE.dll+0x1084e>)
~~Dr.M~~ # 2 _cinit                               +0xe      (0x0052287f 
<image.exe+0x12287f>)
~~Dr.M~~ # 3 KERNEL32.dll!BaseThreadInitThunk     +0x11     (0x7648336a 
<KERNEL32.dll+0x1336a>)
~~Dr.M~~
~~Dr.M~~ Error #2: LEAK 8 direct bytes 0x03120220-0x03120228 + 264 
indirect bytes
~~Dr.M~~ # 0 replace_malloc 
[d:\drmemory_package\common\alloc_replace.c:2292]
~~Dr.M~~ # 1 _setargv                         +0x40     (0x00524141 
<image.exe+0x124141>)
~~Dr.M~~ # 2 KERNEL32.dll!BaseThreadInitThunk +0x11     (0x7648336a 
<KERNEL32.dll+0x1336a>)
~~Dr.M~~
~~Dr.M~~ ERRORS FOUND:
~~Dr.M~~       0 unique,     0 total unaddressable access(es)
~~Dr.M~~       0 unique,     0 total uninitialized access(es)
~~Dr.M~~       0 unique,     0 total invalid heap argument(s)
~~Dr.M~~       0 unique,     0 total GDI usage error(s)
~~Dr.M~~       0 unique,     0 total warning(s)
~~Dr.M~~       2 unique,     2 total,   3486 byte(s) of leak(s)
~~Dr.M~~       0 unique,     0 total,      0 byte(s) of possible leak(s)
~~Dr.M~~ ERRORS IGNORED:
~~Dr.M~~       7 unique,   109 total,   9916 byte(s) of still-reachable 
allocation(s)
~~Dr.M~~          (re-run with "-show_reachable" for details)
~~Dr.M~~ Details: D:\Softs\Dr. 
Memory\drmemory\logs\DrMemory-image.exe.8476.000\results.txt
~~Dr.M~~ WARNING: application exited with abnormal code 0x1

E:\Dev\Personal\DQuick\data>drMemory E:\Dev\Personal\DQuick\data\image.exe
~~Dr.M~~ Dr. Memory version 1.6.0
~~Dr.M~~ Running "E:\Dev\Personal\DQuick\data\image.exe"
~~Dr.M~~
~~Dr.M~~ Error #1: UNADDRESSABLE ACCESS: reading 0x0255114e-0x02551150 2 
byte(s) within 0x0255114c-0x02551150
~~Dr.M~~ # 0 strlen
~~Dr.M~~ # 1 __build_environ
~~Dr.M~~ # 2 _setenvp
~~Dr.M~~ # 3 _cinit
~~Dr.M~~ # 4 mainCRTStartup
~~Dr.M~~ # 5 KERNEL32.dll!BaseThreadInitThunk +0x11     (0x7648336a 
<KERNEL32.dll+0x1336a>)
~~Dr.M~~ Note: @0:00:00.391 in thread 8940
~~Dr.M~~ Note: refers to 0 byte(s) beyond last valid byte in prior malloc
~~Dr.M~~ Note: prev lower malloc:  0x025504c0-0x0255114e
~~Dr.M~~ Note: instruction: mov    (%ecx) -> %eax
~~Dr.M~~
~~Dr.M~~ Error #2: LEAK 8 direct bytes 0x02550498-0x025504a0 + 266 
indirect bytes
~~Dr.M~~ # 0 replace_RtlAllocateHeap 
[d:\drmemory_package\common\alloc_replace.c:3048]
~~Dr.M~~ # 1 malloc
~~Dr.M~~ # 2 KERNEL32.dll!BaseThreadInitThunk     +0x11     (0x7648336a 
<KERNEL32.dll+0x1336a>)
~~Dr.M~~
~~Dr.M~~ Error #3: LEAK 3214 direct bytes 0x025504c0-0x0255114e + 0 
indirect bytes
~~Dr.M~~ # 0 replace_RtlAllocateHeap 
[d:\drmemory_package\common\alloc_replace.c:3048]
~~Dr.M~~ # 1 KERNELBASE.dll!GetEnvironmentStringsA+0x8b     (0x771c084e 
<KERNELBASE.dll+0x1084e>)
~~Dr.M~~ # 2 _cinit
~~Dr.M~~ # 3 KERNEL32.dll!BaseThreadInitThunk     +0x11     (0x7648336a 
<KERNEL32.dll+0x1336a>)
~~Dr.M~~
~~Dr.M~~ ERRORS FOUND:
~~Dr.M~~       1 unique,     1 total unaddressable access(es)
~~Dr.M~~       0 unique,     0 total uninitialized access(es)
~~Dr.M~~       0 unique,     0 total invalid heap argument(s)
~~Dr.M~~       0 unique,     0 total GDI usage error(s)
~~Dr.M~~       0 unique,     0 total warning(s)
~~Dr.M~~       2 unique,     2 total,   3488 byte(s) of leak(s)
~~Dr.M~~       0 unique,     0 total,      0 byte(s) of possible leak(s)
~~Dr.M~~ ERRORS IGNORED:
~~Dr.M~~       5 unique,   109 total,  10128 byte(s) of still-reachable 
allocation(s)
~~Dr.M~~          (re-run with "-show_reachable" for details)
~~Dr.M~~ Details: D:\Softs\Dr. 
Memory\drmemory\logs\DrMemory-image.exe.4024.000\results.txt
~~Dr.M~~ WARNING: application exited with abnormal code 0x1


Maybe an issue due to the gc?