diff options
Diffstat (limited to 'winsup/cygwin/dcrt0.cc')
| -rw-r--r-- | winsup/cygwin/dcrt0.cc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc index c77324f9d..4b87905b2 100644 --- a/winsup/cygwin/dcrt0.cc +++ b/winsup/cygwin/dcrt0.cc @@ -724,6 +724,10 @@ dll_crt0_1 () /* Initialize uid, gid. */ uinfo_init (); + /* beyond this we only do for cygwin apps or dlls */ + if (dynamically_loaded) + return; + /* Initialize signal/subprocess handling. */ sigproc_init (); @@ -842,6 +846,46 @@ dll_crt0 (per_process *uptr) dll_crt0_1 (); } +extern "C" void *export_malloc (unsigned int); +extern "C" void export_free (void *); +extern "C" void *export_realloc (void *, unsigned int); +extern "C" void *export_calloc (unsigned int, unsigned int); + +/* This must be called by anyone who uses LoadLibrary to load cygwin1.dll */ +extern "C" void cygwin_dll_init (); +void +cygwin_dll_init () +{ + static struct _reent *temp_impure; + static char **envp; + static int _fmode; + user_data->heapbase = user_data->heapptr = user_data->heaptop = NULL; + + if (!DuplicateHandle (GetCurrentProcess (), GetCurrentProcess (), + GetCurrentProcess (), &hMainProc, 0, FALSE, + DUPLICATE_SAME_ACCESS)) + hMainProc = GetCurrentProcess (); + + DuplicateHandle (hMainProc, GetCurrentThread (), hMainProc, + &hMainThread, 0, FALSE, DUPLICATE_SAME_ACCESS); + user_data->dll_major = CYGWIN_VERSION_DLL_MAJOR; + user_data->dll_minor = CYGWIN_VERSION_DLL_MINOR; + user_data->api_major = CYGWIN_VERSION_API_MAJOR; + user_data->api_minor = CYGWIN_VERSION_API_MINOR; + user_data->magic_biscuit = sizeof (per_process); + + user_data->impure_ptr_ptr = &temp_impure; + user_data->envptr = &envp; + user_data->fmode_ptr = &_fmode; + + user_data->malloc = &export_malloc; + user_data->free = &export_free; + user_data->realloc = &export_realloc; + user_data->calloc = &export_calloc; + + dll_crt0_1 (); +} + extern "C" void __main (void) { |