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-rw-r--r--Documentation/kbuild/makefiles.txt14
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 7847fce13bd6..71c602d61680 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -18,6 +18,7 @@ This document describes the Linux kernel Makefiles.
18 --- 3.9 Dependency tracking 18 --- 3.9 Dependency tracking
19 --- 3.10 Special Rules 19 --- 3.10 Special Rules
20 --- 3.11 $(CC) support functions 20 --- 3.11 $(CC) support functions
21 --- 3.12 $(LD) support functions
21 22
22 === 4 Host Program support 23 === 4 Host Program support
23 --- 4.1 Simple Host Program 24 --- 4.1 Simple Host Program
@@ -570,6 +571,19 @@ more details, with real examples.
570 endif 571 endif
571 endif 572 endif
572 573
574--- 3.12 $(LD) support functions
575
576 ld-option
577 ld-option is used to check if $(LD) supports the supplied option.
578 ld-option takes two options as arguments.
579 The second argument is an optional option that can be used if the
580 first option is not supported by $(LD).
581
582 Example:
583 #Makefile
584 LDFLAGS_vmlinux += $(call really-ld-option, -X)
585
586
573=== 4 Host Program support 587=== 4 Host Program support
574 588
575Kbuild supports building executables on the host for use during the 589Kbuild supports building executables on the host for use during the