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| author | Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com> | 2019-03-26 19:38:36 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2019-03-28 12:09:53 +0300 |
| commit | 023c107a22ebd2f540fa3f4888535aad32839fe2 (patch) | |
| tree | fdbec6491255d696928b83a0ebcd2831fb608ba4 /winsup/cygwin/dcrt0.cc | |
| parent | e0fd15c91b206ff788148b8dd2a37a80c8cad175 (diff) | |
Cygwin: fork: reserve dynloaded dll areas earlier
In dll_crt0_0, both threadinterface->Init and sigproc_init allocate
windows object handles using unpredictable memory regions, which may
collide with dynamically loaded dlls when they were relocated.
Diffstat (limited to 'winsup/cygwin/dcrt0.cc')
| -rw-r--r-- | winsup/cygwin/dcrt0.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc index 11edcdf0d..fb726a739 100644 --- a/winsup/cygwin/dcrt0.cc +++ b/winsup/cygwin/dcrt0.cc @@ -632,6 +632,12 @@ child_info_fork::handle_fork () if (fixup_mmaps_after_fork (parent)) api_fatal ("recreate_mmaps_after_fork_failed"); + + /* We need to occupy the address space for dynamically loaded dlls + before we allocate any dynamic object, or we may end up with + error "address space needed by <dll> is already occupied" + for no good reason (seen with some relocated dll). */ + dlls.reserve_space (); } bool |