diff options
| author | Oliver Smith-Denny <osde@microsoft.com> | 2025-01-29 11:05:03 -0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2025-02-07 02:23:11 +0000 |
| commit | e6b6aa90d490c298da140bc118d73ceff510f563 (patch) | |
| tree | e20b3795b7d5bab5c7280396aafbfb61e9b1b577 /MdePkg/Library/DynamicStackCookieEntryPointLib/UefiApplication/ApplicationStackCheckEntryPointLibNull.c | |
| parent | efbf5ed08c48478b51bb6b6da5670b1312755854 (diff) | |
| download | edk2-e6b6aa90d490c298da140bc118d73ceff510f563.tar.gz | |
MdePkg: Add Dynamic Stack Cookie Support
Adds dynamic stack cookies in the form of copies of the entry
point libraries that use shared logic to update stack cookies
at runtime.
This relies on RDRAND on IA32/X64 and RNDR on AARCH64 to get a
random number to apply to the stack cookie on module entry point.
This simplifies the logic a platform must do to include stack
check functionality.
Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
Diffstat (limited to 'MdePkg/Library/DynamicStackCookieEntryPointLib/UefiApplication/ApplicationStackCheckEntryPointLibNull.c')
| -rw-r--r-- | MdePkg/Library/DynamicStackCookieEntryPointLib/UefiApplication/ApplicationStackCheckEntryPointLibNull.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/MdePkg/Library/DynamicStackCookieEntryPointLib/UefiApplication/ApplicationStackCheckEntryPointLibNull.c b/MdePkg/Library/DynamicStackCookieEntryPointLib/UefiApplication/ApplicationStackCheckEntryPointLibNull.c new file mode 100644 index 0000000000..7c18e22ae7 --- /dev/null +++ b/MdePkg/Library/DynamicStackCookieEntryPointLib/UefiApplication/ApplicationStackCheckEntryPointLibNull.c @@ -0,0 +1,50 @@ +/** @file
+ Entry point library instance to a UEFI application that does not update the stack cookie dynamically.
+
+Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+#include <Library/UefiApplicationEntryPoint.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+
+extern
+EFI_STATUS
+EFIAPI
+_CModuleEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ );
+
+/**
+ Entry point to UEFI Application.
+
+ This function is the entry point for a UEFI Application. This function must call
+ ProcessLibraryConstructorList(), ProcessModuleEntryPointList(), and ProcessLibraryDestructorList().
+ The return value from ProcessModuleEntryPointList() is returned.
+ If _gUefiDriverRevision is not zero and SystemTable->Hdr.Revision is less than _gUefiDriverRevison,
+ then return EFI_INCOMPATIBLE_VERSION.
+
+ @param ImageHandle The image handle of the UEFI Application.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The UEFI Application exited normally.
+ @retval EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
+ @retval Other Return value from ProcessModuleEntryPointList().
+
+**/
+EFI_STATUS
+EFIAPI
+_ModuleEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ //
+ // Call the module's entry point
+ //
+ return _CModuleEntryPoint (ImageHandle, SystemTable);
+}
|