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authorDmitry Artamonow <mad_soft@inbox.ru>2009-05-22 07:31:34 +0000
committerKoen Kooi <koen@openembedded.org>2009-05-22 19:53:13 +0200
commit0f1bfa08ced1bd3482220bf3b97bb55fcc45de31 (patch)
tree3e52b13b9f71a48fbe34c54b9776329460c3fa23 /recipes/linux/linux-handhelds-2.6-2.6.21
parentfc9e12bd1987d2c91fc6d2163e6246744aa92bc4 (diff)
linux-handhelds-2.6: fix compilation with gcc-4.3
Backport time.h patch from 2.6.25 kernel (commit 38332cb98772f5ea757e6486bed7ed0381cb5f98) It fixes following error during compilation: LD .tmp_vmlinux1 kernel/built-in.o: In function `getnstimeofday': utsname_sysctl.c:(.text+0xf110): undefined reference to `__aeabi_uldivmod' kernel/built-in.o: In function `do_gettimeofday': utsname_sysctl.c:(.text+0xf1d0): undefined reference to `__aeabi_uldivmod' utsname_sysctl.c:(.text+0xf1ec): undefined reference to `__aeabi_uldivmod' kernel/built-in.o: In function `do_timer': utsname_sysctl.c:(.text+0x100ec): undefined reference to `__aeabi_uldivmod' utsname_sysctl.c:(.text+0x1010c): undefined reference to `__aeabi_uldivmod' make: *** [.tmp_vmlinux1] Error 1 See also similar OE bug #4333 Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Koen Kooi <koen@openembedded.org>
Diffstat (limited to 'recipes/linux/linux-handhelds-2.6-2.6.21')
-rw-r--r--recipes/linux/linux-handhelds-2.6-2.6.21/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/recipes/linux/linux-handhelds-2.6-2.6.21/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch b/recipes/linux/linux-handhelds-2.6-2.6.21/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch
new file mode 100644
index 0000000000..ad10b67639
--- /dev/null
+++ b/recipes/linux/linux-handhelds-2.6-2.6.21/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch
@@ -0,0 +1,34 @@
+From 38332cb98772f5ea757e6486bed7ed0381cb5f98 Mon Sep 17 00:00:00 2001
+From: Segher Boessenkool <segher@kernel.crashing.org>
+Date: Tue, 4 Mar 2008 14:59:54 -0800
+Subject: [PATCH] time: prevent the loop in timespec_add_ns() from being optimised away
+
+Since some architectures don't support __udivdi3().
+
+Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
+Cc: john stultz <johnstul@us.ibm.com>
+Cc: Ingo Molnar <mingo@elte.hu>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+---
+ include/linux/time.h | 4 ++++
+ 1 files changed, 4 insertions(+), 0 deletions(-)
+
+diff --git a/include/linux/time.h b/include/linux/time.h
+index 2091a19..d32ef0a 100644
+--- a/include/linux/time.h
++++ b/include/linux/time.h
+@@ -174,6 +174,10 @@ static inline void timespec_add_ns(struct timespec *a, u64 ns)
+ {
+ ns += a->tv_nsec;
+ while(unlikely(ns >= NSEC_PER_SEC)) {
++ /* The following asm() prevents the compiler from
++ * optimising this loop into a modulo operation. */
++ asm("" : "+r"(ns));
++
+ ns -= NSEC_PER_SEC;
+ a->tv_sec++;
+ }
+--
+1.6.0.6
+