diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kbuild/headers_install.rst | 7 | ||||
| -rw-r--r-- | Documentation/kbuild/kbuild.rst | 9 | ||||
| -rw-r--r-- | Documentation/kbuild/makefiles.rst | 22 |
3 files changed, 26 insertions, 12 deletions
diff --git a/Documentation/kbuild/headers_install.rst b/Documentation/kbuild/headers_install.rst index 1ab7294e41ac..f6c6b74a609c 100644 --- a/Documentation/kbuild/headers_install.rst +++ b/Documentation/kbuild/headers_install.rst @@ -40,12 +40,5 @@ INSTALL_HDR_PATH indicates where to install the headers. It defaults to An 'include' directory is automatically created inside INSTALL_HDR_PATH and headers are installed in 'INSTALL_HDR_PATH/include'. -The command "make headers_install_all" exports headers for all architectures -simultaneously. (This is mostly of interest to distribution maintainers, -who create an architecture-independent tarball from the resulting include -directory.) You also can use HDR_ARCH_LIST to specify list of architectures. -Remember to provide the appropriate linux/asm directory via "mv" or "ln -s" -before building a C library with headers exported this way. - The kernel header export infrastructure is maintained by David Woodhouse <dwmw2@infradead.org>. diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst index e774e760522d..b25548963d70 100644 --- a/Documentation/kbuild/kbuild.rst +++ b/Documentation/kbuild/kbuild.rst @@ -200,6 +200,15 @@ The output directory is often set using "O=..." on the commandline. The value can be overridden in which case the default value is ignored. +KBUILD_ABS_SRCTREE +-------------------------------------------------- +Kbuild uses a relative path to point to the tree when possible. For instance, +when building in the source tree, the source tree path is '.' + +Setting this flag requests Kbuild to use absolute path to the source tree. +There are some useful cases to do so, like when generating tag files with +absolute path entries etc. + KBUILD_SIGN_PIN --------------- This variable allows a passphrase or PIN to be passed to the sign-file diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst index 9274cdcc9bd2..093f2d79ab95 100644 --- a/Documentation/kbuild/makefiles.rst +++ b/Documentation/kbuild/makefiles.rst @@ -999,11 +999,7 @@ When kbuild executes, the following steps are followed (roughly): ------------------------------------ The archheaders: rule is used to generate header files that - may be installed into user space by "make header_install" or - "make headers_install_all". In order to support - "make headers_install_all", this target has to be able to run - on an unconfigured tree, or a tree configured for another - architecture. + may be installed into user space by "make header_install". It is run before "make archprepare" when run on the architecture itself. @@ -1140,6 +1136,22 @@ When kbuild executes, the following steps are followed (roughly): In this example, extra-y is used to list object files that shall be built, but shall not be linked as part of built-in.a. + header-test-y + + header-test-y specifies headers (*.h) in the current directory that + should be compile tested to ensure they are self-contained, + i.e. compilable as standalone units. If CONFIG_HEADER_TEST is enabled, + this builds them as part of extra-y. + + header-test-pattern-y + + This works as a weaker version of header-test-y, and accepts wildcard + patterns. The typical usage is: + + header-test-pattern-y += *.h + + This specifies all the files that matches to '*.h' in the current + directory, but the files in 'header-test-' are excluded. 6.7 Commands useful for building a boot image --------------------------------------------- |