From mboxrd@z Thu Jan 1 00:00:00 1970 From: mathieu.desnoyers@efficios.com (Mathieu Desnoyers) Date: Tue, 4 Feb 2014 14:52:14 +0000 (UTC) Subject: [lttng-dev] lib_ring_buffer_align error bit-field '' width not an integer constant In-Reply-To: References: <2097060417.17951.1391442624499.JavaMail.zimbra@efficios.com> Message-ID: <245022020.18739.1391525534666.JavaMail.zimbra@efficios.com> You might want to request help from Cavium, since they are the one supporting their toolchain. It really seems to be a Cavium-specific issue. Thanks, Mathieu ----- Original Message ----- > From: "kumar s" > To: "Mathieu Desnoyers" > Cc: lttng-dev at lists.lttng.org > Sent: Tuesday, February 4, 2014 5:13:44 AM > Subject: Re: [lttng-dev] lib_ring_buffer_align error bit-field '' > width not an integer constant > Hi, > The lttng module i use is the latest version, compiler toolchain cannot be > upgraded since it is provided by Cavium, kernel version is 2.6.32.27. > Is there any change i need to do on lttng modules to build it? > Thank you > SKumar > On Mon, Feb 3, 2014 at 9:20 PM, Mathieu Desnoyers < > mathieu.desnoyers at efficios.com > wrote: > > > From: "kumar s" < skumar.m226@gmail.com > > > > > > > To: lttng-dev at lists.lttng.org > > > > > > Sent: Tuesday, December 3, 2013 3:20:02 AM > > > > > > Subject: [lttng-dev] lib_ring_buffer_align error bit-field '' > > > width not an integer constant > > > > > > Hello, > > > > > > When trying to build lttng modules i am getting this error. Cross > > > compiler > > > for mips and Arch = mips is used in makefile. > > > > > > Linux kernel version 2.6.32.27 > > > > > > make -C > > > /home/shkumar/Development_Merge/NewOCT/OCTEON_SDK/octeon_sdk/OCTEON-SDK/linux/kernel_2.6/linux > > > M=/home/shkumar/lttng-tools/lttngmod/lttng-modules modules ARCH=mips > > > CROSS_COMPILE=mips64-octeon-linux-gnu- > > > > > > make[1]: Entering directory > > > `/home/shkumar/Development_Merge/NewOCT/OCTEON_SDK/octeon_sdk/OCTEON-SDK/linux/kernel_2.6/linux' > > > > > > CC [M] > > > /home/shkumar/lttng-tools/lttngmod/lttng-modules/lttng-ring-buffer-client-discard.o > > > > > > In file included from > > > /home/shkumar/lttng-tools/lttngmod/lttng-modules/wrapper/ringbuffer/config.h:1, > > > > > > from > > > /home/shkumar/lttng-tools/lttngmod/lttng-modules/lttng-tracer-core.h:35, > > > > > > from /home/shkumar/lttng-tools/lttngmod/lttng-modules/lttng-tracer.h:39, > > > > > > from > > > /home/shkumar/lttng-tools/lttngmod/lttng-modules/lttng-ring-buffer-client-discard.c:24: > > > > > > /home/shkumar/lttng-tools/lttngmod/lttng-modules/wrapper/ringbuffer/../../lib/ringbuffer/config.h: > > > In function 'lib_ring_buffer_align': > > > > > > /home/shkumar/lttng-tools/lttngmod/lttng-modules/wrapper/ringbuffer/../../lib/ringbuffer/config.h:266: > > > error: bit-field '' width not an integer constant > > > > > > make[2]: *** > > > [/home/shkumar/lttng-tools/lttngmod/lttng-modules/lttng-ring-buffer-client-discard.o] > > > Error 1 > > > > > > make[1]: *** [_module_/home/shkumar/lttng-tools/lttngmod/lttng-modules] > > > Error > > > 2 > > > > > > make[1]: Leaving directory > > > `/home/shkumar/Development_Merge/NewOCT/OCTEON_SDK/octeon_sdk/OCTEON-SDK/linux/kernel_2.6/linux' > > > > > > make: *** [default] Error 2 > > > > > > How do i fix this? > > > > > This is caused by the use of offset_align(), passing incorrect parameters, > > detected by the compiler: > > > see lttng-modules > > > lib/align.h: > > > #define offset_align(align_drift, alignment) \ > > > ({ \ > > > BUILD_RUNTIME_BUG_ON((alignment) == 0 \ > > > || ((alignment) & ((alignment) - 1))); \ > > > (((alignment) - (align_drift)) & ((alignment) - 1)); \ > > > }) > > > See also lttng-modules > > > lib/bug.h > > > So there are two things that are possible: either the compiler you use does > > not perform the > > > optimisations that are expected, and therefore triggers the BUILD_BUG_ON() > > without needing to, > > > or there really is an incorrect value passed to offset_align(). > > > Make sure lttng-modules, your compiler toolchain, and your kernel are up to > > date. > > > Thanks, > > > Mathieu > > > > Skumar. > > > > > > _______________________________________________ > > > > > > lttng-dev mailing list > > > > > > lttng-dev at lists.lttng.org > > > > > > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev > > > > > -- > > > Mathieu Desnoyers > > > EfficiOS Inc. > > > http://www.efficios.com > -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com -------------- next part -------------- An HTML attachment was scrubbed... URL: