Loading lib/Kconfig.debug +6 −6 Original line number Diff line number Diff line Loading @@ -90,19 +90,19 @@ config DEBUG_SECTION_MISMATCH most likely result in an oops. In the code functions and variables are annotated with __init, __devinit etc. (see full list in include/linux/init.h) which result in the code/data being placed in specific sections. The section mismatch anaylsis are always done after a full kernel build but enabling this options will in addition which results in the code/data being placed in specific sections. The section mismatch analysis is always done after a full kernel build but enabling this option will in addition do the following: - Add the option -fno-inline-functions-called-once to gcc When inlining a function annotated __init in a non-init function we would loose the section information and thus function we would lose the section information and thus the analysis would not catch the illegal reference. This options tell gcc to inline less but will also This option tells gcc to inline less but will also result in a larger kernel. - Run the section mismatch analysis for each module/built-in.o When we run the section mismatch analysis on vmlinux.o we looses valueable information about where the mismatch was lose valueble information about where the mismatch was introduced. Running the analysis for each module/built-in.o file will tell where the mismatch happens much closer to the Loading Loading
lib/Kconfig.debug +6 −6 Original line number Diff line number Diff line Loading @@ -90,19 +90,19 @@ config DEBUG_SECTION_MISMATCH most likely result in an oops. In the code functions and variables are annotated with __init, __devinit etc. (see full list in include/linux/init.h) which result in the code/data being placed in specific sections. The section mismatch anaylsis are always done after a full kernel build but enabling this options will in addition which results in the code/data being placed in specific sections. The section mismatch analysis is always done after a full kernel build but enabling this option will in addition do the following: - Add the option -fno-inline-functions-called-once to gcc When inlining a function annotated __init in a non-init function we would loose the section information and thus function we would lose the section information and thus the analysis would not catch the illegal reference. This options tell gcc to inline less but will also This option tells gcc to inline less but will also result in a larger kernel. - Run the section mismatch analysis for each module/built-in.o When we run the section mismatch analysis on vmlinux.o we looses valueable information about where the mismatch was lose valueble information about where the mismatch was introduced. Running the analysis for each module/built-in.o file will tell where the mismatch happens much closer to the Loading