/***
*_cinit - C initialization
*
*Purpose:
* This routine performs the shared DOS and Windows initialization.
* The following order of initialization must be preserved -
*
* 1. Check for devices for file handles 0 - 2
* 2. Integer divide interrupt vector setup
* 3. General C initializer routines
*
*Entry:
* No parameters: Called from __crtstart and assumes data
* set up correctly there.
*
*Exit:
* Initializes C runtime data.
* Returns 0 if all .CRT$XI internal initializations succeeded, else
* the _RT_* fatal error code encountered.
*
*Exceptions:
*
*******************************************************************************/
#ifndef CRTDLL
extern void __cdecl _initp_misc_cfltcvt_tab();
#endif /* CRTDLL */
int __cdecl _cinit (
int initFloatingPrecision
)
{
int initret;
/*
* initialize floating point package, if present
*/
#ifdef CRTDLL
_fpmath(initFloatingPrecision);
#else /* CRTDLL */
if (_FPinit != NULL &&
_IsNonwritableInCurrentImage((PBYTE)&_FPinit))
{
(*_FPinit)(initFloatingPrecision);
}
_initp_misc_cfltcvt_tab();
#endif /* CRTDLL */
/*
* do initializations
*/
initret = _initterm_e( __xi_a, __xi_z );
if ( initret != 0 )
return initret;
#ifdef _RTC
atexit(_RTC_Terminate);
#endif /* _RTC */
/*
* do C++ initializations
*/
_initterm( __xc_a, __xc_z );
#ifndef CRTDLL
/*
* If we have any dynamically initialized __declspec(thread)
* variables, then invoke their initialization for the thread on
* which the DLL is being loaded, by calling __dyn_tls_init through
* a callback defined in tlsdyn.obj. We can't rely on the OS
* calling __dyn_tls_init with DLL_PROCESS_ATTACH because, on
* Win2K3 and before, that call happens before the CRT is
* initialized.
*/
if (__dyn_tls_init_callback != NULL &&
_IsNonwritableInCurrentImage((PBYTE)&__dyn_tls_init_callback))
{
__dyn_tls_init_callback(NULL, DLL_THREAD_ATTACH, NULL);
}
#endif /* CRTDLL */
return 0;
}
[QUOTE=someone]
if (use_dep_hack)
{
// This works around a "protection" introduced in MSVCRT80, which
// works like this:
// When the compiler detects that it would link in some code from its
// C runtime library which references some data in a read only
// section then it compiles in a runtime check whether that data is
// still in a read only section by looking at the pe header of the
// file. If this check fails the runtime does "interesting" things
// like not running the floating point initialization code - the result
// is an R6002 runtime error.
// These supposed to be read only addresses are covered by the sections
// UPX0 & UPX1 in the compressed files, so we have to patch the PE header
// in the memory. And the page on which the PE header is stored is read
// only so we must make it rw, fix the flags (i.e. clear
// PEFL_WRITE of osection[x].flags), and make it ro again.
