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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 2616a58a5a4b..9a1586590d82 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt | |||
| @@ -872,7 +872,13 @@ When kbuild executes the following steps are followed (roughly): | |||
| 872 | Assignments to $(targets) are without $(obj)/ prefix. | 872 | Assignments to $(targets) are without $(obj)/ prefix. |
| 873 | if_changed may be used in conjunction with custom commands as | 873 | if_changed may be used in conjunction with custom commands as |
| 874 | defined in 6.7 "Custom kbuild commands". | 874 | defined in 6.7 "Custom kbuild commands". |
| 875 | |||
| 875 | Note: It is a typical mistake to forget the FORCE prerequisite. | 876 | Note: It is a typical mistake to forget the FORCE prerequisite. |
| 877 | Another common pitfall is that whitespace is sometimes | ||
| 878 | significant; for instance, the below will fail (note the extra space | ||
| 879 | after the comma): | ||
| 880 | target: source(s) FORCE | ||
| 881 | #WRONG!# $(call if_changed, ld/objcopy/gzip) | ||
| 876 | 882 | ||
| 877 | ld | 883 | ld |
| 878 | Link target. Often LDFLAGS_$@ is used to set specific options to ld. | 884 | Link target. Often LDFLAGS_$@ is used to set specific options to ld. |