dd5c7e3c52
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2947 When calculating memory regions and store the information in the gSystemMemory in file WinHost.c, the code below will cause overflow, because _wtoi (MemorySizeStr) return an int value and SIZE_1MB is also an int value, if MemorySizeStr is lager for example 2048, then result of multiplication will overflow. for (Index = 0, Done = FALSE; !Done; Index++) { // // Save the size of the memory and make a Unicode filename SystemMemory00 // gSystemMemory[Index].Size = _wtoi (MemorySizeStr) * SIZE_1MB; Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Andrew Fish <afish@apple.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Wenyi Xie <xiewenyi2@huawei.com>
Overview
EmulatorPkg provides an environment where a UEFI environment can be emulated under an environment where a full UEFI compatible environment is not possible. (For example, running under an OS where an OS process hosts the UEFI emulation environment.)
https://github.com/tianocore/tianocore.github.io/wiki/EmulatorPkg
Status
- Builds and runs under
- a posix-like environment with X windows
- Linux
- OS X
- Windows environment
- Win10 (verified)
- Win8 (not verified)
- a posix-like environment with X windows
How to Build & Run
You can use the following command to build.
-
32bit emulator in Windows:
build -p EmulatorPkg\EmulatorPkg.dsc -t VS2017 -a IA32 -
64bit emulator in Windows:
build -p EmulatorPkg\EmulatorPkg.dsc -t VS2017 -a X64 -
32bit emulator in Linux:
build -p EmulatorPkg\EmulatorPkg.dsc -t GCC5 -a IA32 -
64bit emulator in Linux:
build -p EmulatorPkg\EmulatorPkg.dsc -t GCC5 -a X64
You can start/run the emulator using the following command:
-
32bit emulator in Windows:
cd Build\EmulatorIA32\DEBUG_VS2017\IA32\ && WinHost.exe -
64bit emulator in Windows:
cd Build\EmulatorX64\DEBUG_VS2017\X64\ && WinHost.exe -
32bit emulator in Linux:
cd Build/EmulatorIA32/DEBUG_GCC5/IA32/ && ./Host -
64bit emulator in Linux:
cd Build/EmulatorX64/DEBUG_GCC5/X64/ && ./Host
On posix-like environment with the bash shell you can use EmulatorPkg/build.sh to simplify building and running emulator.
For example, to build + run:
$ EmulatorPkg/build.sh
$ EmulatorPkg/build.sh run
The build architecture will match your host machine's architecture.
On X64 host machines, you can build + run IA32 mode as well:
$ EmulatorPkg/build.sh -a IA32
$ EmulatorPkg/build.sh -a IA32 run