huwcampbell.com
Reactos
[VCRUNTIME] Implement _chkesp / _chkesp_failed
+58
+11
sdk/lib/vcruntime/CMakeLists.txt
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sdk/lib/vcruntime/CMakeLists.txt
···
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include_directories(inc)
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if(DBG)
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add_compile_definitions(_DEBUG) # TODO: define this globally
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endif()
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# Silence GCC/Clang warnings
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
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CMAKE_C_COMPILER_ID STREQUAL "Clang")
···
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if(${ARCH} STREQUAL "i386")
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list(APPEND VCRT_COMMON_ASM_SOURCES
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i386/__security_check_cookie.s
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i386/_chkesp.s
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)
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elseif(${ARCH} STREQUAL "amd64")
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list(APPEND VCRT_COMMON_ASM_SOURCES
···
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__vcrt_init.c
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purecall.cpp
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)
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if(${ARCH} STREQUAL "i386")
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list(APPEND VCRT_RUNTIME_SOURCES
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i386/_chkesp_failed.c
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)
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endif()
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# Runtime library (linked into ucrtbase)
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add_library(vcruntime ${VCRT_RUNTIME_SOURCES} $<TARGET_OBJECTS:vcrt_common> $<TARGET_OBJECTS:setjmp>)
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sdk/lib/vcruntime/i386/_chkesp.s
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sdk/lib/vcruntime/i386/_chkesp.s
···
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/*
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* PROJECT: ReactOS vcruntime library
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* LICENSE: MIT (https://spdx.org/licenses/MIT)
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* PURPOSE: Implementation of _chkesp
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* COPYRIGHT: Copyright 2026 Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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#include <asm.inc>
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.code
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EXTERN __chkesp_failed:PROC
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PUBLIC __chkesp
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__chkesp:
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jnz _failed
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ret
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_failed:
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jmp __chkesp_failed
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END
+25
sdk/lib/vcruntime/i386/_chkesp_failed.c
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sdk/lib/vcruntime/i386/_chkesp_failed.c
···
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/*
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* PROJECT: ReactOS vcruntime library
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* LICENSE: MIT (https://spdx.org/licenses/MIT)
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* PURPOSE: Implementation of _chkesp_failed
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* COPYRIGHT: Copyright 2026 Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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#include <crtdbg.h>
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void _chkesp_failed(void)
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{
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#ifdef _DEBUG
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/* Report the error to the user */
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_CrtDbgReport(_CRT_ERROR,
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__FILE__,
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__LINE__,
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"",
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"The stack pointer was invalid after a function call. "
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"This indicates that a function was called with the "
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"wrong parmeters or calling convention.\n"
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"Click 'Retry' to debug the application.");
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#endif
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__debugbreak();
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}