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Diffstat (limited to 'Documentation/kbuild/makefiles.txt')
| -rw-r--r-- | Documentation/kbuild/makefiles.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 63655c1a3ad6..766355b1d221 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -1105,6 +1105,12 @@ When kbuild executes, the following steps are followed (roughly): target: source(s) FORCE #WRONG!# $(call if_changed, ld/objcopy/gzip/...) + Note: if_changed should not be used more than once per target. + It stores the executed command in a corresponding .cmd + file and multiple calls would result in overwrites and + unwanted results when the target is up to date and only the + tests on changed commands trigger execution of commands. + ld Link target. Often, LDFLAGS_$@ is used to set specific options to ld. |