Re: 2.6.32-rc5-git3 compile problems

From: Xiaotian Feng
Date: Tue Oct 27 2009 - 23:07:25 EST


Try this patch, thanks.
---
index b40ac57..04a4272 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -292,8 +292,24 @@ DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);

#else /* #ifdef RCU_TREE_NONCORE */

-/* Forward declarations for rcutree_plugin.h */
-static inline void rcu_bootup_announce(void);
+#ifdef CONFIG_TREE_PREEMPT_RCU
+/*
+ * Tell them what RCU they are running.
+ */
+static inline void rcu_bootup_announce(void)
+{
+ printk(KERN_INFO
+ "Experimental preemptable hierarchical RCU implementation.\n");
+}
+#else
+/*
+ * Tell them what RCU they are running.
+ */
+static inline void rcu_bootup_announce(void)
+{
+ printk(KERN_INFO "Hierarchical RCU implementation.\n");
+}
+#endif
long rcu_batches_completed(void);
static void rcu_preempt_note_context_switch(int cpu);
static int rcu_preempted_readers(struct rcu_node *rnp);
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index c0cb783..1b96445 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -31,15 +31,6 @@ struct rcu_state rcu_preempt_state =
RCU_STATE_INITIALIZER(rcu_preempt_state);
DEFINE_PER_CPU(struct rcu_data, rcu_preempt_data);

/*
- * Tell them what RCU they are running.
- */
-static inline void rcu_bootup_announce(void)
-{
- printk(KERN_INFO
- "Experimental preemptable hierarchical RCU implementation.\n");
-}
-
-/*
* Return the number of RCU-preempt batches processed thus far
* for debug and statistics.
*/
@@ -462,14 +453,6 @@ void exit_rcu(void)
#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */

/*
- * Tell them what RCU they are running.
- */
-static inline void rcu_bootup_announce(void)
-{
- printk(KERN_INFO "Hierarchical RCU implementation.\n");
-}
-
-/*
* Return the number of RCU batches processed thus far for debug & stats.
*/
long rcu_batches_completed(void)

On Wed, Oct 28, 2009 at 4:50 AM, Alex <mysqlstudent@xxxxxxxxx> wrote:
> Hi,
>
> I receive the following error when using defconfig on 2.6.32-rc5-git3:
>
> ÂCC Â Â Âkernel/seccomp.o
> ÂCC Â Â Âkernel/rcutree.o
> kernel/rcutree.c: In function `__rcu_init':
> kernel/rcutree.h:296: sorry, unimplemented: inlining failed in call to
> 'rcu_bootup_announce': function body not available
> kernel/rcutree.c:1702: sorry, unimplemented: called from here
> make[1]: *** [kernel/rcutree.o] Error 1
> make: *** [kernel] Error 2
>
> Is this something I'm doing wrong? I'm actually trying to compile
> 2.6.31.5 with the default config, and it too fails, for another
> reason. I'm having difficulty compiling 2.6.31 and 2.6.31.5 on x86
> with gcc-3.4.4 and binutils-2.20.51.0.2. I'm also using glibc-2.3.6.
>
> ÂAS Â Â Âarch/x86/lib/thunk_32.o
> ÂCC Â Â Âarch/x86/lib/usercopy_32.o
> ÂAR Â Â Âarch/x86/lib/lib.a
> ÂLD Â Â Âvmlinux.o
> ÂMODPOST vmlinux.o
> ÂGEN Â Â .version
> ÂCHK Â Â include/linux/compile.h
> ÂUPD Â Â include/linux/compile.h
> ÂCC Â Â Âinit/version.o
> ÂLD Â Â Âinit/built-in.o
> ÂLD Â Â Â.tmp_vmlinux1
> drivers/built-in.o: In function `con_init':
> vt.c:(.init.text+0x3c5b): undefined reference to `.L1446'
> make: *** [.tmp_vmlinux1] Error 1
>
> I'd sure appreciate any pointers on how to troubleshoot this.
>
> Thanks,
> Alex
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