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how to fix compile warning: cannot find entry symbol _ModuleEntryPoint

Andrew Fish #395 Wenyi, You can pass -n 1 to the edk2 build command to force a single threaded build to help debug compile issues. Thanks, Andrew Fish toggle quoted message Show quoted text On Sep 30, 2020, at 12:00 AM, xiewenyi (A) <xiewenyi2@...> wrote: Thanks, Andrew, Laszlo and liming, with your help I find the module which really own the warning. As the compile is multithreading, the order in compile log is not right. The module which cause warning is written by ourselves. In this module's inf file, MODULE_TYPE is set as USER_DEFINED, and UefiDriverEntryPoint is not set in [LibraryClasses]. On 2020/9/30 0:00, Andrew Fish wrote: Wenyi, If you look under the Build results <Platform>/<DEBUG/RELEASE>_<COMPILER>/AArch64/Edk2/ArmPkg/Drivers/ArmGic/ (hopefully I got that right) and go down a little bit you will see the build generated GNUmakefile. You might want to take a look at that to try and figure out what is going on? Thanks, Andrew Fish On Sep 29, 2020, at 7:23 AM, wenyi,xie via groups.io <http://groups.io> <xiewenyi2@... <mailto:xiewenyi2@...>> wrote: I checked my platform DSC and there's UefiDriverEntryPoint\|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf in the section [LibraryClasses.common]. I'm not sure why _ModuleEntryPoint can't be found when link the object. Regards Wenyi On 2020/9/29 2:21, Laszlo Ersek wrote: On 09/28/20 10:57, wenyi,xie via groups.io <http://groups.io> wrote: Hi, all I use edk2-stable201903 in my project and meet a compile warning like below, /opt/buildtools/gcc-linaro-7.4.1-2019.02/aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/7.4.1/../../../../aarch64-linux-gnu/bin/ld: warning: cannot find entry symbol _ModuleEntryPoint; not setting start address It seems like the warning happens when building EDKII/Edk2/ArmPkg/Drivers/ArmGic/ArmGicDxe.inf does anyone know how to fix it? If need more info, please contact me, thanks! here's some of my build option, Architecture(s) = AARCH64 Build target = RELEASE Toolchain = GCC5 The UefiDriverEntryPoint lib class in the [Sources] section in "ArmPkg/Drivers/ArmGic/ArmGicDxe.inf" should be resolved by your platform DSC to "MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf". That's where the definition of _ModuleEntryPoint() should come from (see "MdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c"). Thanks Laszlo
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Andrew Fish #389 Wenyi, If you look under the Build results <Platform>/<DEBUG/RELEASE>_<COMPILER>/AArch64/Edk2/ArmPkg/Drivers/ArmGic/ (hopefully I got that right) and go down a little bit you will see the build generated GNUmakefile. You might want to take a look at that to try and figure out what is going on? Thanks, Andrew Fish toggle quoted message Show quoted text On Sep 29, 2020, at 7:23 AM, wenyi,xie via groups.io <xiewenyi2@...> wrote: I checked my platform DSC and there's UefiDriverEntryPoint\|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf in the section [LibraryClasses.common]. I'm not sure why _ModuleEntryPoint can't be found when link the object. Regards Wenyi On 2020/9/29 2:21, Laszlo Ersek wrote: On 09/28/20 10:57, wenyi,xie via groups.io wrote: Hi, all I use edk2-stable201903 in my project and meet a compile warning like below, /opt/buildtools/gcc-linaro-7.4.1-2019.02/aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/7.4.1/../../../../aarch64-linux-gnu/bin/ld: warning: cannot find entry symbol _ModuleEntryPoint; not setting start address It seems like the warning happens when building EDKII/Edk2/ArmPkg/Drivers/ArmGic/ArmGicDxe.inf does anyone know how to fix it? If need more info, please contact me, thanks! here's some of my build option, Architecture(s) = AARCH64 Build target = RELEASE Toolchain = GCC5 The UefiDriverEntryPoint lib class in the [Sources] section in "ArmPkg/Drivers/ArmGic/ArmGicDxe.inf" should be resolved by your platform DSC to "MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf". That's where the definition of _ModuleEntryPoint() should come from (see "MdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c"). Thanks Laszlo
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wenyi,xie #385 Thanks, Andrew, Laszlo and liming, with your help I find the module which really own the warning. As the compile is multithreading, the order in compile log is not right. The module which cause warning is written by ourselves. In this module's inf file, MODULE_TYPE is set as USER_DEFINED, and UefiDriverEntryPoint is not set in [LibraryClasses]. toggle quoted message Show quoted text On 2020/9/30 0:00, Andrew Fish wrote: Wenyi, If you look under the Build results <Platform>/<DEBUG/RELEASE>_<COMPILER>/AArch64/Edk2/ArmPkg/Drivers/ArmGic/ (hopefully I got that right) and go down a little bit you will see the build generated GNUmakefile. You might want to take a look at that to try and figure out what is going on? Thanks, Andrew Fish On Sep 29, 2020, at 7:23 AM, wenyi,xie via groups.io <http://groups.io> <xiewenyi2@... <mailto:xiewenyi2@...>> wrote: I checked my platform DSC and there's UefiDriverEntryPoint\|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf in the section [LibraryClasses.common]. I'm not sure why _ModuleEntryPoint can't be found when link the object. Regards Wenyi On 2020/9/29 2:21, Laszlo Ersek wrote: On 09/28/20 10:57, wenyi,xie via groups.io <http://groups.io> wrote: Hi, all I use edk2-stable201903 in my project and meet a compile warning like below, /opt/buildtools/gcc-linaro-7.4.1-2019.02/aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/7.4.1/../../../../aarch64-linux-gnu/bin/ld: warning: cannot find entry symbol _ModuleEntryPoint; not setting start address It seems like the warning happens when building EDKII/Edk2/ArmPkg/Drivers/ArmGic/ArmGicDxe.inf does anyone know how to fix it? If need more info, please contact me, thanks! here's some of my build option, Architecture(s) = AARCH64 Build target = RELEASE Toolchain = GCC5 The UefiDriverEntryPoint lib class in the [Sources] section in "ArmPkg/Drivers/ArmGic/ArmGicDxe.inf" should be resolved by your platform DSC to "MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf". That's where the definition of _ModuleEntryPoint() should come from (see "MdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c"). Thanks Laszlo
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wenyi,xie #384 I checked my platform DSC and there's UefiDriverEntryPoint\|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf in the section [LibraryClasses.common]. I'm not sure why _ModuleEntryPoint can't be found when link the object. Regards Wenyi toggle quoted message Show quoted text On 2020/9/29 2:21, Laszlo Ersek wrote: On 09/28/20 10:57, wenyi,xie via groups.io wrote: Hi, all I use edk2-stable201903 in my project and meet a compile warning like below, /opt/buildtools/gcc-linaro-7.4.1-2019.02/aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/7.4.1/../../../../aarch64-linux-gnu/bin/ld: warning: cannot find entry symbol _ModuleEntryPoint; not setting start address It seems like the warning happens when building EDKII/Edk2/ArmPkg/Drivers/ArmGic/ArmGicDxe.inf does anyone know how to fix it? If need more info, please contact me, thanks! here's some of my build option, Architecture(s) = AARCH64 Build target = RELEASE Toolchain = GCC5 The UefiDriverEntryPoint lib class in the [Sources] section in "ArmPkg/Drivers/ArmGic/ArmGicDxe.inf" should be resolved by your platform DSC to "MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf". That's where the definition of _ModuleEntryPoint() should come from (see "MdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c"). Thanks Laszlo
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Laszlo Ersek #376 On 09/28/20 10:57, wenyi,xie via groups.io wrote: Hi, all I use edk2-stable201903 in my project and meet a compile warning like below, /opt/buildtools/gcc-linaro-7.4.1-2019.02/aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/7.4.1/../../../../aarch64-linux-gnu/bin/ld: warning: cannot find entry symbol _ModuleEntryPoint; not setting start address It seems like the warning happens when building EDKII/Edk2/ArmPkg/Drivers/ArmGic/ArmGicDxe.inf does anyone know how to fix it? If need more info, please contact me, thanks! here's some of my build option, Architecture(s) = AARCH64 Build target = RELEASE Toolchain = GCC5 The UefiDriverEntryPoint lib class in the [Sources] section in "ArmPkg/Drivers/ArmGic/ArmGicDxe.inf" should be resolved by your platform DSC to "MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf". That's where the definition of _ModuleEntryPoint() should come from (see "MdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c"). Thanks Laszlo
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wenyi,xie #373 Hi, all I use edk2-stable201903 in my project and meet a compile warning like below, /opt/buildtools/gcc-linaro-7.4.1-2019.02/aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/7.4.1/../../../../aarch64-linux-gnu/bin/ld: warning: cannot find entry symbol _ModuleEntryPoint; not setting start address It seems like the warning happens when building EDKII/Edk2/ArmPkg/Drivers/ArmGic/ArmGicDxe.inf does anyone know how to fix it? If need more info, please contact me, thanks! here's some of my build option, Architecture(s) = AARCH64 Build target = RELEASE Toolchain = GCC5
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