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kconfig: improve the recursive dependency report

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This commit improves the messages of the recursive dependency.
Currently, sym->dir_dep.expr is not checked.  Hence, any dependency
in property visibility is regarded as the dependency of the symbol.

[Test Code 1]

  config A
          bool "a"
          depends on B

  config B
          bool "b"
          depends on A

[Test Code 2]

  config A
          bool "a" if B

  config B
          bool "b"
          depends on A

For both cases above, the same message is displayed:

        symbol B depends on A
        symbol A depends on B

This commit changes the message for the latter, like this:

        symbol B depends on A
        symbol A prompt is visible depending on B

Also, 'select' and 'imply' are distinguished.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Dirk Gouders <dirk@gouders.net>
This commit is contained in:
Masahiro Yamada
2018-08-15 14:59:45 +09:00
parent 5e8c5299d3
commit f498926c47
2 changed files with 39 additions and 19 deletions
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6
scripts/kconfig/tests/err_recursive_dep/expected_stderr
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@@ -1,5 +1,5 @@
Kconfig:11:error: recursive dependency detected!
Kconfig:11: symbol B is selected or implied by B
Kconfig:11: symbol B is selected by B
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
@@ -15,14 +15,14 @@ For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
Kconfig:32:error: recursive dependency detected!
Kconfig:32: symbol D2 is selected or implied by D1
Kconfig:32: symbol D2 is selected by D1
Kconfig:27: symbol D1 depends on D2
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
Kconfig:37:error: recursive dependency detected!
Kconfig:37: symbol E1 depends on E2
Kconfig:42: symbol E2 is selected or implied by E1
Kconfig:42: symbol E2 is implied by E1
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"