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Groups > linux.kernel > #1438660
| From | tip-bot for James Hogan <tipbot@zytor.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [tip:x86/build] kbuild, x86: Track generated headers with generated-y |
| Date | 2016-07-07 16:50 +0200 |
| Message-ID | <rSiMN-8hI-27@gated-at.bofh.it> (permalink) |
| References | <rNI5c-5LK-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Commit-ID: 54b880caf15034644b564e378abf67b7f9eaf4dc Gitweb: http://git.kernel.org/tip/54b880caf15034644b564e378abf67b7f9eaf4dc Author: James Hogan <james.hogan@imgtec.com> AuthorDate: Fri, 24 Jun 2016 23:42:23 +0100 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Thu, 7 Jul 2016 15:58:44 +0200 kbuild, x86: Track generated headers with generated-y Track generated header files which aren't already in genhdr-y, alongside generic-y wrappers in the */include/generated/[uapi/]asm/ directories. Currently only x86 generates extra headers in these directories, for the purposes of enumerating system calls for different ABIs, and xen hypercalls. This will allow the asm-generic wrapper handling code to remove stale wrappers when files are removed from generic-y, without also removing these headers which are generated separately. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-kbuild@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: Michal Marek <mmarek@suse.com> Link: http://lkml.kernel.org/r/1466808144-23209-2-git-send-email-james.hogan@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- Documentation/kbuild/makefiles.txt | 14 ++++++++++++++ arch/x86/include/asm/Kbuild | 6 ++++++ 2 files changed, 20 insertions(+) diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 13f888a..385a5ef 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -47,6 +47,7 @@ This document describes the Linux kernel Makefiles. --- 7.2 genhdr-y --- 7.3 destination-y --- 7.4 generic-y + --- 7.5 generated-y === 8 Kbuild Variables === 9 Makefile language @@ -1319,6 +1320,19 @@ See subsequent chapter for the syntax of the Kbuild file. Example: termios.h #include <asm-generic/termios.h> + --- 7.5 generated-y + + If an architecture generates other header files alongside generic-y + wrappers, and not included in genhdr-y, then generated-y specifies + them. + + This prevents them being treated as stale asm-generic wrappers and + removed. + + Example: + #arch/x86/include/asm/Kbuild + generated-y += syscalls_32.h + === 8 Kbuild Variables The top Makefile exports the following variables: diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild index aeac434..2cfed17 100644 --- a/arch/x86/include/asm/Kbuild +++ b/arch/x86/include/asm/Kbuild @@ -1,5 +1,11 @@ +generated-y += syscalls_32.h +generated-y += syscalls_64.h +generated-y += unistd_32_ia32.h +generated-y += unistd_64_x32.h +generated-y += xen-hypercalls.h + genhdr-y += unistd_32.h genhdr-y += unistd_64.h genhdr-y += unistd_x32.h
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[PATCH v4 0/2] kbuild: Remove stale asm-generic wrappers James Hogan <james.hogan@imgtec.com> - 2016-06-25 00:50 +0200
[PATCH v4 1/2] kbuild, x86: Track generated headers with generated-y James Hogan <james.hogan@imgtec.com> - 2016-06-25 00:50 +0200
[tip:x86/build] kbuild, x86: Track generated headers with generated-y tip-bot for James Hogan <tipbot@zytor.com> - 2016-07-07 16:50 +0200
[PATCH v4 2/2] kbuild: Remove stale asm-generic wrappers James Hogan <james.hogan@imgtec.com> - 2016-06-25 00:50 +0200
[tip:x86/build] kbuild: Remove stale asm-generic wrappers tip-bot for James Hogan <tipbot@zytor.com> - 2016-07-07 16:50 +0200
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