From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Luis R. Rodriguez" Date: Sun, 15 Jan 2017 21:12:12 +0000 Subject: [PATCH v4 3/6] tools: add __used and enable to override Message-Id: <20170115211215.17216-4-mcgrof@kernel.org> List-Id: References: <20170109150249.11667-1-mcgrof@kernel.org> <20170115211215.17216-1-mcgrof@kernel.org> In-Reply-To: <20170115211215.17216-1-mcgrof@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: bp@alien8.de, bp@suse.de, hpa@zytor.com, acme@redhat.com, tglx@linutronix.de, mingo@redhat.com, jpoimboe@redhat.com, npiggin@gmail.com, mhiramat@kernel.org, masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com, heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com, anil.s.keshavamurthy@intel.com, davem@davemloft.net, realmz6@gmail.com, dalias@libc.org, linux@arm.linux.org.uk Cc: x86@kernel.org, luto@amacapital.net, keescook@chromium.org, linux@roeck-us.net, torvalds@linux-foundation.org, gregkh@linuxfoundation.org, rusty@rustcorp.com.au, gnomes@lxorguk.ukuu.org.uk, alan@linux.intel.com, dwmw2@infradead.org, arnd@arndb.de, ming.lei@canonical.com, linux-arch@vger.kernel.org, benh@kernel.crashing.org, pebolle@tiscali.nl, fontana@sharpeleven.org, david.vrabel@citrix.com, konrad.wilk@oracle.com, mcb30@ipxe.org, jgross@suse.com, andrew.cooper3@citrix.com, andriy.shevchenko@linux.intel.com, paul.gortmaker@windriver.com, xen-devel@lists.xensource.com, ak@linux.intel.com, pali.rohar@gmail.com, dvhart@infradead.org, platform-driver-x86@vger.kernel.org, mmarek@suse.com, linux@rasmusvillemoes.dk, jkosina@suse.cz, korea.drzix@gmail.com, linux-kbuild@vger.kernel This adds __used, to be used later in the userspace linker-tables sandbox. If any userspace applicaiton wants to override they can add their own definition and then use include_next. This definition should probably suffice for most uses cases though. Signed-off-by: Luis R. Rodriguez --- tools/include/linux/compiler.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index e33fc1df3935..556c991de212 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -5,6 +5,12 @@ /* The "volatile" is due to gcc bugs */ #define barrier() __asm__ __volatile__("": : :"memory") + +/* You can override as you see fit on your userspace tool */ +#ifndef __used +#define __used __attribute__((__used__)) +#endif + #ifndef __always_inline # define __always_inline inline __attribute__((always_inline)) #endif -- 2.11.0