diff options
Diffstat (limited to 'winsup/cygwin/dcrt0.cc')
| -rw-r--r-- | winsup/cygwin/dcrt0.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc index 023f7682c..38b4b67f3 100644 --- a/winsup/cygwin/dcrt0.cc +++ b/winsup/cygwin/dcrt0.cc @@ -607,9 +607,10 @@ get_cygwin_startup_info () This seems to be a bug in Vista's WOW64, which apparently copies the lpReserved2 datastructure not using the cbReserved2 size information, but using the information given in the first DWORD within lpReserved2 - instead. Funny enough, 32 bit Vista doesn't care if zero[0] is 0 or a - non-0 count value, while older versions of Windows might crash if - zero[0] is set to a non-zero value, as observed at least on XP 64. + instead. 32 bit Windows and former WOW64 don't care if zero[0] is 0 + or a sensible non-0 count value. However, it's not clear if a non-0 + count doesn't result in trying to evaluate the content, so we do this + really only for Vista 64 for now. exec/spawn as well as fork write an appropriate value into zero[0] now, depending on the wincap.needs_count_in_si_lpres2 flag. The value is |