cygwin patch&test workflow? [Re: cygwin does not compile]

[Thomas Wolff]

I wrote:
> Since cygwin 1.7 (self-compiled) doesn't start, I tried cygwin 1.5 
> strace, invoking cygwin 1.7 bash (with --login -i).
> This *did* work, so I don't think there's diagnostic value in it. If 
> you yet want to see the 3.7 MB strace log (0.5 MB compressed),
Actually I'm not sure now it worked; I may have been mistaken by a 
confusion I had before, not really having involved 1.7 because I had 
loaded 1.5 previously; in a "working" case, uname reported 1.5, so this 
was bogus, sorry.
Running freshly from a Windows cmd.exe prompt, I get a significantly 
smaller trace:

D:\cygwin17\bin>.\strace ./bash
    5       5 [main] bash 984 open_shared: name shared.5, n 5, shared 
0x60FC0000 (wanted 0x60FC0000), h 0x788
  296     301 [main] bash 984 heap_init: heap base 0x6D0000, heap top 
0x6D0000
  144     445 [main] bash 984 open_shared: name 
S-1-5-21-3202424084-3423815021-920199376-5503.1, n 1, shared 0x60FD0000 
(wanted 0x60FD0000), h 0x784
  136     581 [main] bash 984 user_shared_create: opening user shared 
for 'S-1-5-21-3202424084-3423815021-920199376-5503' at 0x60FD0000
  102     683 [main] bash 984 add_handle: protecting handle 
'cygwin_user_h'(0x784), inherited flag 1
  132     815 [main] bash 984 user_shared_create: user shared version 0
  103     918 [main] bash 984 events_init: windows_system_directory 
'C:\WINNT51\system32\', windows_system_directory_length 20
  112    1030 [main] bash 984 add_handle: protecting handle 
'mutex'(0x76C), inherited flag 0
  109    1139 [main] bash 984 dll_crt0_0: finished dll_crt0_0 initialization
  125    1264 [main] bash 984 _cygtls::remove: wait 0xFFFFFFFF
   95    1359 [main] bash 984 _cygtls::remove: removed 0x22CE64 element 0
  108    1467 [main] bash 984 _cygtls::remove: wait 0xFFFFFFFF
   59    1526 [main] bash 984 _cygtls::remove: removed 0x22CE64 element 0
  120    1646 [main] bash 984 _cygtls::remove: wait 0xFFFFFFFF
   57    1703 [main] bash 984 _cygtls::remove: removed 0x22CE64 element 0
 4051    5754 [main] bash 984 _cygtls::remove: wait 0xFFFFFFFF
  194    5948 [main] bash 984 _cygtls::remove: removed 0x22CE64 element 0
  296    6244 [sig] bash 984 add_handle: protecting handle 
'my_readsig'(0x75C), inherited flag 0
  122    6366 [sig] bash 984 wait_sig: entering ReadFile loop, 
my_readsig 0x75C, my_sendsig 0x744
--- Process 984, exception C0000005 at 6106D075