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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*++
Module Name:
include/pal/module.h
Abstract:
Header file for modle management utilities.
--*/
#ifndef _PAL_MODULE_H_
#define _PAL_MODULE_H_
#ifdef __cplusplus
extern "C"
{
#endif // __cplusplus
typedef BOOL (PALAPI_NOEXPORT *PDLLMAIN)(HINSTANCE, DWORD, LPVOID); /* entry point of module */
typedef HINSTANCE (PALAPI_NOEXPORT *PREGISTER_MODULE)(LPCSTR); /* used to create the HINSTANCE for above DLLMain entry point */
typedef VOID (PALAPI_NOEXPORT *PUNREGISTER_MODULE)(HINSTANCE); /* used to cleanup the HINSTANCE for above DLLMain entry point */
typedef struct _MODSTRUCT
{
HMODULE self; /* circular reference to this module */
NATIVE_LIBRARY_HANDLE dl_handle; /* handle returned by dlopen() */
HINSTANCE hinstance; /* handle returned by PAL_RegisterLibrary */
LPWSTR lib_name; /* full path of module */
INT refcount; /* reference count */
/* -1 means infinite reference count - module is never released */
BOOL threadLibCalls; /* TRUE for DLL_THREAD_ATTACH/DETACH notifications enabled, FALSE if they are disabled */
#if RETURNS_NEW_HANDLES_ON_REPEAT_DLOPEN
ino_t inode;
dev_t device;
#endif
PDLLMAIN pDllMain; /* entry point of module */
/* reference to next and previous modules in list (in load order) */
struct _MODSTRUCT *next;
struct _MODSTRUCT *prev;
} MODSTRUCT;
/*++
LOADFindPreloadedPEFile -
Find image in list of preloaded
Parameters:
IN wszPath - path to mapped file
Return value:
non-NULL - the base address of the mapped image
NULL - image is not in the list of preloaded.
--*/
void * LOADFindPreloadedPEFile(LPCWSTR wszPath);
/*++
Function :
LOADInitializeModules
Initialize the process-wide list of modules
Parameters :
None
Return value :
TRUE on success, FALSE on failure
--*/
BOOL LOADInitializeModules();
/*++
Function :
LOADSetExeName
Set the exe name path
Parameters :
LPWSTR man exe path and name
Return value :
TRUE if initialization succeedded
FALSE otherwise
--*/
BOOL LOADSetExeName(LPWSTR name);
/*++
Function :
LOADCallDllMain
Call DllMain for all modules (that have one) with the given "fwReason"
Parameters :
DWORD dwReason : parameter to pass down to DllMain, one of DLL_PROCESS_ATTACH, DLL_PROCESS_DETACH,
DLL_THREAD_ATTACH, DLL_THREAD_DETACH
LPVOID lpReserved : parameter to pass down to DllMain
If dwReason is DLL_PROCESS_ATTACH, lpvReserved is NULL for dynamic loads and non-NULL for static loads.
If dwReason is DLL_PROCESS_DETACH, lpvReserved is NULL if DllMain has been called by using FreeLibrary
and non-NULL if DllMain has been called during process termination.
(no return value)
Notes :
This is used to send DLL_THREAD_*TACH messages to modules
--*/
void LOADCallDllMain(DWORD dwReason, LPVOID lpReserved);
/*++
Function:
LockModuleList
Abstract
Enter the critical section associated to the module list
Parameter
void
Return
void
--*/
void LockModuleList();
/*++
Function:
UnlockModuleList
Abstract
Leave the critical section associated to the module list
Parameter
void
Return
void
--*/
void UnlockModuleList();
/*++
Function:
PAL_LOADLoadPEFile
Abstract
Loads a PE file into memory. Properly maps all of the sections in the PE file. Returns a pointer to the
loaded base.
Parameters:
IN hFile - The file to load
IN wszPath - File path
OUT isPreloaded - Flag whether pefile was preloaded
Return value:
A valid base address if successful.
0 if failure
--*/
void * PAL_LOADLoadPEFile(HANDLE hFile, LPCWSTR wszPath, BOOL *isPreloaded);
/*++
PAL_LOADUnloadPEFile
Unload a PE file that was loaded by PAL_LOADLoadPEFile().
Parameters:
IN ptr - the file pointer returned by PAL_LOADLoadPEFile()
Return value:
TRUE - success
FALSE - failure (incorrect ptr, etc.)
--*/
BOOL PAL_LOADUnloadPEFile(void * ptr);
/*++
Function:
PAL_LOADPreloadPEFile
Abstract
Preloads a PE file into memory. Properly maps all of the sections in the PE file. Returns a pointer to the
loaded base.
Parameters:
IN szPath - path of file to load
Return value:
A valid base address if successful.
0 if failure
--*/
void *
PAL_LOADPreloadPEFile(LPCSTR szPath);
/*++
PAL_LOADUnloadPreloadedPEFiles
Unload all PE files that were loaded by PAL_LOADPreloadPEFile().
Return value:
TRUE - success
FALSE - failure
--*/
BOOL
PAL_LOADUnloadPreloadedPEFiles();
/*++
LOADInitializeCoreCLRModule
Run the initialization methods for CoreCLR module.
Parameters:
None
Return value:
TRUE if successful
FALSE if failure
--*/
BOOL LOADInitializeCoreCLRModule();
/*++
Function :
LOADGetPalLibrary
Load and initialize the PAL module.
Parameters :
None
Return value :
handle to loaded module
--*/
MODSTRUCT *LOADGetPalLibrary();
#ifdef __cplusplus
}
#endif // __cplusplus
#endif /* _PAL_MODULE_H_ */
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