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From: "Lemke, Michael  SF/HZA-ZIC2" <lemkemch AT schaeffler DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: RE: gdb not working
Thread-Topic: gdb not working
Thread-Index: AQHW61WJd5VbMi1Ieka8tXBei9z6MKopBu2A
Date: Fri, 15 Jan 2021 18:47:56 +0000
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On Friday, January 15, 2021 4:45 PM Jon Turney wrote:
>On 15/01/2021 12:28, Lemke, Michael wrote:
>> I just installed a fresh copy of Cygwin and gdb with setup-x86_64.exe.
>> However, gdb does not produce any output.
>> 
>> Installing gdb versions 7.9.1-1 and 7.10.1-1 work, anything newer doesn't.
>> Any ideas why?
>[...]
>
>> Install gdb 7.12.1-2
>>   pc> gdb -v
>> Install gdb 8.0.1-1
>>   pc> gdb -v
>>   pc> cygcheck -c gdb
>> Cygwin Package Information
>> Package              Version        Status
>> gdb                  8.0.1-1        OK
>
>You might try 'strace gdb' and see if that sheds any light on what's 
>failing.

I tried that but I couldn't see anything strange. Also ldd `which gdb` is
fine.

I tried the cygcheck Marco Atzeri suggested. I am not comfortable to send
the result to the list but I checked it.

As a result I cleaned up my path to just /bin which removed some duplicate
entries in cygcheck.out but gdb still doesn't work.

The only strange part I see in cygcheck.out is a slight mess up with my
installation, a result of my moving /c/cygwin64 to /c/mystuff/ncygwin64
after my first run of setup.exe, see below.  So what has changed between 
gdb 7.10.1-1 and gdb 7.12.1-2? 

Excerpt from cygcheck.out:

HKEY_CURRENT_USER\Software\Cygwin
HKEY_CURRENT_USER\Software\Cygwin\Installations
  (default) = '\??\C:\cygwin64'
  d5bac59bf2204d69 = '\??\C:\MyStuff\NCygwin64'
  c0a8879476f177eb = '\??\C:\MyStuff\NCygwin'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\Installations
  (default) = '\??\C:\cygwin64'
  d5bac59bf2204d69 = '\??\C:\MyStuff\NCygwin64'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\setup
  (default) = 'C:\MyStuff\NCygwin64'

obcaseinsensitive set to 1

Cygwin installations found in the registry:
  System: Key: e022582115c10879 Path: C:\cygwin64 (ORPHANED)
  System: Key: d5bac59bf2204d69 Path: C:\MyStuff\NCygwin64
  User:   Key: e022582115c10879 Path: C:\cygwin64 (ORPHANED)
  User:   Key: d5bac59bf2204d69 Path: C:\MyStuff\NCygwin64
  User:   Key: c0a8879476f177eb Path: C:\MyStuff\NCygwin

c:  hd  NTFS    486732Mb  27% CP CS UN PA FC    QU  Windows
u:  net NTFS   4300668Mb  91% CP CS UN PA FC    QU  USERS-10

C:\MyStuff\NCygwin\home   /home     user    binary
C:\MyStuff\NCygwin64      /         system  binary,auto
C:\MyStuff\NCygwin64\bin  /usr/bin  system  binary,auto
C:\MyStuff\NCygwin64\lib  /usr/lib  system  binary,auto
cygdrive prefix           /         user    binary,posix=0,auto

Found: C:\MyStuff\NCygwin64\bin\awk
 -> C:\MyStuff\NCygwin64\bin\gawk.exe
Found: C:\MyStuff\NCygwin64\bin\bash.exe
Found: C:\MyStuff\NCygwin64\bin\cat.exe
Not Found: certutil
Not Found: clinfo
Not Found: comp
Found: C:\MyStuff\NCygwin64\bin\convert
 -> C:\MyStuff\NCygwin64\bin\magick.exe
Found: C:\MyStuff\NCygwin64\bin\cp.exe
Found: C:\MyStuff\NCygwin64\bin\cpp.exe
Not Found: crontab
Found: C:\MyStuff\NCygwin64\bin\curl.exe
Found: C:\MyStuff\NCygwin64\bin\expand.exe
Found: C:\MyStuff\NCygwin64\bin\find.exe
Found: C:\MyStuff\NCygwin64\bin\ftp.exe
Found: C:\MyStuff\NCygwin64\bin\gcc.exe
Found: C:\MyStuff\NCygwin64\bin\gdb.exe
Found: C:\MyStuff\NCygwin64\bin\grep.exe
Found: C:\MyStuff\NCygwin64\bin\hostname.exe
Found: C:\MyStuff\NCygwin64\bin\kill.exe
Not Found: klist
Found: C:\MyStuff\NCygwin64\bin\ld.exe
Found: C:\MyStuff\NCygwin64\bin\ls.exe
Found: C:\MyStuff\NCygwin64\bin\make.exe
Found: C:\MyStuff\NCygwin64\bin\mv.exe
Not Found: nslookup
Not Found: patch
Found: C:\MyStuff\NCygwin64\bin\perl.exe
Not Found: replace
Found: C:\MyStuff\NCygwin64\bin\rm.exe
Found: C:\MyStuff\NCygwin64\bin\sed.exe
Found: C:\MyStuff\NCygwin64\bin\sh.exe
Not Found: shutdown
Found: C:\MyStuff\NCygwin64\bin\sort.exe
Found: C:\MyStuff\NCygwin64\bin\ssh.exe
Found: C:\MyStuff\NCygwin64\bin\tar.exe
Found: C:\MyStuff\NCygwin64\bin\test.exe
Found: C:\MyStuff\NCygwin64\bin\timeout.exe
Found: C:\MyStuff\NCygwin64\bin\vi.exe
Found: C:\MyStuff\NCygwin64\bin\vim.exe
Found: C:\MyStuff\NCygwin64\bin\whoami.exe
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