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@@ -117,31 +117,31 @@ config DEBUG_SECTION_MISMATCH
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help
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The section mismatch analysis checks if there are illegal
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references from one section to another section.
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- Linux will during link or during runtime drop some sections
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- and any use of code/data previously in these sections will
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+ During linktime or runtime, some sections are dropped;
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+ any use of code/data previously in these sections would
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most likely result in an oops.
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- In the code functions and variables are annotated with
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- __init, __devinit etc. (see full list in include/linux/init.h)
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+ In the code, functions and variables are annotated with
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+ __init, __devinit, etc. (see the full list in include/linux/init.h),
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which results in the code/data being placed in specific sections.
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- The section mismatch analysis is always done after a full
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- kernel build but enabling this option will in addition
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- do the following:
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- - Add the option -fno-inline-functions-called-once to gcc
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- When inlining a function annotated __init in a non-init
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- function we would lose the section information and thus
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+ The section mismatch analysis is always performed after a full
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+ kernel build, and enabling this option causes the following
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+ additional steps to occur:
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+ - Add the option -fno-inline-functions-called-once to gcc commands.
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+ When inlining a function annotated with __init in a non-init
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+ function, we would lose the section information and thus
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the analysis would not catch the illegal reference.
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- This option tells gcc to inline less but will also
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- result in a larger kernel.
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- - Run the section mismatch analysis for each module/built-in.o
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- When we run the section mismatch analysis on vmlinux.o we
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+ This option tells gcc to inline less (but it does result in
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+ a larger kernel).
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+ - Run the section mismatch analysis for each module/built-in.o file.
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+ When we run the section mismatch analysis on vmlinux.o, we
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lose valueble information about where the mismatch was
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introduced.
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Running the analysis for each module/built-in.o file
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- will tell where the mismatch happens much closer to the
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- source. The drawback is that we will report the same
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- mismatch at least twice.
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- - Enable verbose reporting from modpost to help solving
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- the section mismatches reported.
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+ tells where the mismatch happens much closer to the
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+ source. The drawback is that the same mismatch is
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+ reported at least twice.
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+ - Enable verbose reporting from modpost in order to help resolve
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+ the section mismatches that are reported.
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config DEBUG_KERNEL
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bool "Kernel debugging"
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