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Diffstat (limited to 'winsup/cygwin/DevNotes')
| -rw-r--r-- | winsup/cygwin/DevNotes | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/winsup/cygwin/DevNotes b/winsup/cygwin/DevNotes index aba32f1a2..e1d2b3f61 100644 --- a/winsup/cygwin/DevNotes +++ b/winsup/cygwin/DevNotes @@ -1,3 +1,26 @@ +2012-05-14 cgf-000007 + +<1.7.16> +- Fix invocation of strace from a cygwin process. Fixes: + http://cygwin.com/ml/cygwin/2012-05/msg00292.html +</1.7.16> + +The change in cgf-000004 introduced a problem for processes which load +cygwin1.dll dynamically. strace.exe is the most prominent example of +this. + +Since the parent handle is now closed for "non-Cygwin" processes, when +strace.exe tried to dynamically load cygwin1.dll, the handle was invalid +and child_info_spawn::handle_spawn couldn't use retrieve information +from the parent. This eventually led to a strace_printf error due to an +attempt to dereference an unavailable cygheap. Probably have to fix +this someday. You shouldn't use the cygheap while attempting to print +an error about the inavailability of said cygheap. + +This was fixed by saving the parent pid in child_info_spawn and calling +OpenProcess for the parent pid and using that handle iff a process is +dynamically loaded. + 2012-05-12 cgf-000006 <1.7.16> |