diff options
Diffstat (limited to 'MdePkg/Library/StackCheckLibNull')
7 files changed, 163 insertions, 0 deletions
diff --git a/MdePkg/Library/StackCheckLibNull/IA32/StackCheckFunctionsMsvc.nasm b/MdePkg/Library/StackCheckLibNull/IA32/StackCheckFunctionsMsvc.nasm new file mode 100644 index 000000000000..4addecd7322c --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/IA32/StackCheckFunctionsMsvc.nasm @@ -0,0 +1,21 @@ +;------------------------------------------------------------------------------ +; IA32/StackCheckFunctionsMsvc.nasm +; +; Copyright (c) Microsoft Corporation. +; SPDX-License-Identifier: BSD-2-Clause-Patent +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +global ASM_PFX(__report_rangecheckfailure) +ASM_PFX(__report_rangecheckfailure): + ret + +global ASM_PFX(__GSHandlerCheck) +ASM_PFX(__GSHandlerCheck): + ret + +global @__security_check_cookie@4 +@__security_check_cookie@4: + ret diff --git a/MdePkg/Library/StackCheckLibNull/StackCheckLibHostApplicationMsvc.c b/MdePkg/Library/StackCheckLibNull/StackCheckLibHostApplicationMsvc.c new file mode 100644 index 000000000000..3492d17c66d2 --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/StackCheckLibHostApplicationMsvc.c @@ -0,0 +1,13 @@ +/** @file + This file is empty to allow host applications + to use the MSVC C runtime lib that provides + stack cookie definitions without breaking the + build. + + Copyright (c) Microsoft Corporation. + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#include <Uefi.h> + +extern VOID *__security_cookie; diff --git a/MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf b/MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf new file mode 100644 index 000000000000..a78d2e4aa4d2 --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf @@ -0,0 +1,41 @@ +## @file +# Null library instance for StackCheckLib which can be included +# when a build needs to include stack check functions but does +# not want to generate stack check failures. +# +# Copyright (c) Microsoft Corporation. +# SPDX-License-Identifier: BSD-2-Clause-Patent +## + +[Defines] + INF_VERSION = 1.29 + BASE_NAME = StackCheckLibNull + FILE_GUID = f6ef2763-ca3b-4c6f-a931-2a48de3ce352 + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = StackCheckLib + +[Sources] + StackCheckLibNullGcc.c | GCC + StackCheckLibNullMsvc.c | MSFT + +[Sources.IA32] + IA32/StackCheckFunctionsMsvc.nasm | MSFT + +[Sources.X64] + X64/StackCheckFunctionsMsvc.nasm | MSFT + +[Packages] + MdePkg/MdePkg.dec + +[BuildOptions] + # We cannot build the MSVC version with /GL (whole program optimization) because we run into linker error + # LNK1237, which is a failure to link against a symbol from a library compiled with /GL. The whole program + # optimization tries to do away with references to this symbol. The solution is to not compile the stack + # check libs with /GL + MSFT:*_*_*_CC_FLAGS = /GL- + + # We cannot build the GCC version with LTO (link time optimization) because we run into linker errors where + # the stack cookie variable has been optimized away, as it looks to GCC like the variable is not used, because + # the compiler inserts the usage. + GCC:*_*_*_CC_FLAGS = -fno-lto diff --git a/MdePkg/Library/StackCheckLibNull/StackCheckLibNullGcc.c b/MdePkg/Library/StackCheckLibNull/StackCheckLibNullGcc.c new file mode 100644 index 000000000000..5c4278d60bf4 --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/StackCheckLibNullGcc.c @@ -0,0 +1,23 @@ +/** @file + Defines the stack cookie variable for GCC and Clang compilers. + + Copyright (c) Microsoft Corporation. + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#include <Uefi.h> + +VOID *__stack_chk_guard = (VOID *)(UINTN)0x0; + +/** + This function gets called when a gcc/clang generated stack cookie fails. This implementation does nothing when + a stack cookie failure occurs. + +**/ +VOID +EFIAPI +__stack_chk_fail ( + VOID + ) +{ +} diff --git a/MdePkg/Library/StackCheckLibNull/StackCheckLibNullHostApplication.inf b/MdePkg/Library/StackCheckLibNull/StackCheckLibNullHostApplication.inf new file mode 100644 index 000000000000..43b0b2e889a4 --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/StackCheckLibNullHostApplication.inf @@ -0,0 +1,34 @@ +## @file +# Null library instance for StackCheckLib which can be included +# when a build needs to include stack check functions but does +# not want to generate stack check failures. This instance is used +# for HOST_APPLICATIONS specifically, as MSVC host applications link +# to the C runtime lib that contains the stack cookie definitions, so +# must link to a completely null version of this lib, whereas GCC host +# host applications do not link to a C runtime lib that contains the stack +# cookie definitions, so we must link against our version. +# +# Copyright (c) Microsoft Corporation. +# SPDX-License-Identifier: BSD-2-Clause-Patent +## + +[Defines] + INF_VERSION = 1.29 + BASE_NAME = StackCheckLibNullHostApplication + FILE_GUID = 7EBE7BD1-0D92-4609-89AA-6EA3815CB844 + MODULE_TYPE = HOST_APPLICATION + VERSION_STRING = 1.0 + LIBRARY_CLASS = StackCheckLib|HOST_APPLICATION + +[Sources] + StackCheckLibHostApplicationMsvc.c | MSFT + StackCheckLibNullGcc.c | GCC + +[Packages] + MdePkg/MdePkg.dec + +[BuildOptions] + # We cannot build the GCC version with LTO (link time optimization) because we run into linker errors where + # the stack cookie variable has been optimized away, as it looks to GCC like the variable is not used, because + # the compiler inserts the usage. We do not worry about the MSVC version here as it is a no-op. + GCC:*_*_*_CC_FLAGS = -fno-lto diff --git a/MdePkg/Library/StackCheckLibNull/StackCheckLibNullMsvc.c b/MdePkg/Library/StackCheckLibNull/StackCheckLibNullMsvc.c new file mode 100644 index 000000000000..a9c26dc36b21 --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/StackCheckLibNullMsvc.c @@ -0,0 +1,10 @@ +/** @file + Defines the stack cookie variable for GCC, Clang and MSVC compilers. + + Copyright (c) Microsoft Corporation. + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#include <Uefi.h> + +VOID *__security_cookie = (VOID *)(UINTN)0x0; diff --git a/MdePkg/Library/StackCheckLibNull/X64/StackCheckFunctionsMsvc.nasm b/MdePkg/Library/StackCheckLibNull/X64/StackCheckFunctionsMsvc.nasm new file mode 100644 index 000000000000..4841c6ecb805 --- /dev/null +++ b/MdePkg/Library/StackCheckLibNull/X64/StackCheckFunctionsMsvc.nasm @@ -0,0 +1,21 @@ +;------------------------------------------------------------------------------ +; X64/StackCheckFunctionsMsvc.nasm +; +; Copyright (c) Microsoft Corporation. +; SPDX-License-Identifier: BSD-2-Clause-Patent +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +global ASM_PFX(__report_rangecheckfailure) +ASM_PFX(__report_rangecheckfailure): + ret + +global ASM_PFX(__GSHandlerCheck) +ASM_PFX(__GSHandlerCheck): + ret + +global ASM_PFX(__security_check_cookie) +ASM_PFX(__security_check_cookie): + ret |