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error your version of gcc miscompiles Anawalt, West Virginia

Print This Log in or register to post comments Like (0 likes) 2 Comments Comments RecommendedDate September 2, 2009 #2 qraju Update your gcc version. The standard only requires that "a conforming implementation shall issue at least one diagnostic message" so compiling the program with a warning is allowed (G++ does give an error when converting Check for the last error entry in the file. If it works, your code most probably has undefined behaviour because of some loop.

Why? > We'll have to ask Andrew. MrEngman referenced this issue Jan 6, 2015 Closed /drivers/net/wireless/rtl8192cu is missing from 3.17 & 3.18 #755 popcornmix commented Jan 6, 2015 Kernel is cross-compiled with: arm-linux-gnueabihf-gcc (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC Kernel appears to be compiled with gcc version 4.8.3 I then installed gcc-4.7 etc and it compiles OK. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these

For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. TI E2E Community Menu Search through millions of questions and answers User Menu Search through millions of questions and answers User TI E2E Community Support forums Amplifiers Switches & Multiplexers Applications The compiler optimized away my overflow checks! Using it may produce not effect at all or lead to wrong-code.

Fell free to close if you want to. This allows the use of new -Wno- options with old compilers, but if something goes wrong, the compiler warns that an unrecognized option is present. (See PR28322 for the history of G++ 4.6 gave an error but it was changed to a warning intentionally for 4.7 because many people found that narrowing conversions were one of the most commonly encountered problems when Example command using gcc-4.3.2 : 'make CC=gcc43' knudfl View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by knudfl Tags el5 Thread Tools

This means C++ programs that rely on side effects of copy constructors will behave differently with different compilers, so it is important not to rely on those side effects for correctness. Otherwise, just assume there is no easy/efficient way to diagnose that particular case. Moreover, Apple's version of GCC 4.2 has major modifications that were never shared with the rest of the GCC community, so it is very possible that your bug cannot be reproduced It has been a marvelous adventure in the possibilities of the C language on modern compilers.

For other languages, you may try -ffloat-store or less aggressive optimization levels (like -Og), however, none of those are guaranteed to work and they will probably pessimize your code unnecessarily. A narrowing conversion from a constant produces an error, and a narrowing conversion from a non-constant produces a warning, but -Wno-narrowing suppresses the diagnostic. popcornmix commented Jan 6, 2015 Can we bump gcc-4.8 to the jessie version (4.8.3-13) MrEngman commented Jan 6, 2015 I installed gcc 4.8 using apt-get install which I assume is using Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff. © Copyright 1995-2016 Texas Instruments Incorporated.

I downloaded new kernel from and when i tried to compile it the following error was appeared. I've read that you need 4.8.3 or higher, but isnt 4.8.4 good enough? Please: do not ask or propose a defined (or an unspecified, but consistent) behaviour for undefined behaviour; do not report that something bad happened as a result of undefined behaviour; do The solution is to either test for the positive form (-Wfoo) or test using a testcase that triggers some other warning: $ gcc -c -Wno-tautological-compare < const char x =

To fix the problem either install the 32-bit glibc package (which your system's package manager probably calls something like libc6-dev, libc6-dev-i386, glibc-devel.i686 (Scientific Linux) or glibc-devel-32bit) or disable 32-bit support by GCOV/GCC data files are not created I found a bug in GCC 4.2 for Darwin (Apple System), should I report it? This only supports UCNs in identifiers, not extended characters represented other than with UCNs. Build fails with ''fatal error: gnu/stubs-32.h: No such file or directory''.

The configure script thereby uses small test programs - usually called conftest.c - to test if certain functions and/or features are available. So you should check for overflow before it can happen, not afterwards. I haven't put Walken's patches underneath them however. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo [at] vger More majordomo Terms Privacy Security Status Help You can't perform that action at this time.

I am getting the error like error: #error Your version of gcc miscompiles the __weak directive while I was trying to compile a code 2.6.30 code on same machine. commit d3ffe64a1dbcfe18b57f90f7c01c40c93d0a8b92 Author: Andrew Morton <akpm [at] linux-foundation> Date: Fri Sep 28 00:02:42 2012 +0000 a Signed-off-by: Andrew Morton <akpm [at] linux-foundation> diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h index 934bc34..997fd8a 100644 --- a/include/linux/compiler-gcc4.h We recommend upgrading to the latest Safari, Google Chrome, or Firefox. Signed-off-by: Daniel Santos Acked-by: David Rientjes <rientjes [at] google> --- include/linux/compiler-gcc3.h | 8 ++++---- include/linux/compiler-gcc4.h | 14 +++++++------- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/include/linux/compiler-gcc3.h

I have a custom board of TCI6636K2H. First, individual optimization options (-f*) do not enable optimization, an option -Os or -Ox with x > 0 is required. If it works, your code has undefined behaviour according to the C++ standard, probably when using placement new. Why GCC does not warn for mismatch between struct and class (-Wmismatched-tags) ? [ Permalink ] Because it is not a bug, hence the warning is just noise.

Already have an account? This is really a raspbian issue. Trademarks | Privacy Policy | Terms of Use Sign in android / kernel / tegra / android-3.10 / . / include / linux / compiler-gcc4.hblob: 842de225055fc5b8c769c59ff37e5afa81574f38 [file] [log] [blame]#ifndef __LINUX_COMPILER_H#error "Please Support for actual UTF-8 in identifiers is still pending (please contribute!) So how do you express UCN in the code?

hosted at Digital OceanAdvertise on this site  Skip to content Ignore Learn more Please note that GitHub no longer supports old versions of Firefox. Any suggestions for installing gcc 4.8.3-13 and related packages on my Pi? gcc will assume any path leading to a call to them will be unlikely. We'll have to ask Andrew.

It should be 4.8.3-13 which is okay ( — Reply to this email directly or view it on GitHub <#758 (comment)>. The warning "unrecognized command-line option" is not given for -Wno-foo [ Permalink ] Since GCC 4.4, and as explained in the GCC manual: when an unrecognized warning option is requested (-Wunknown-warning), [email protected]:~/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone# make [email protected]:~/workspace/ufpb6636/workspace/leo_14_06/u-booteystone# make k2hk_evm_configConfiguring for k2hk_evm [email protected]:~/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone# makeGenerating include/autoconf.mkIn file included from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/linux/compiler-gcc.h:87, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/linux/compiler.h:40, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/linux/byteorder/little_endian.h:12, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/asm/byteorder.h:29, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/asm/io.h:26, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/asm/arch/hardware.h:33, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/configs/ks2_evm.h:23, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/configs/k2hk_evm.h:37, from /root/workspace/ufpb6636/workspace/leo_14_06/u-boot-keystone/include/config.h:10, from Misc: Diagnostics, GCOV, ...

This means a lot of manual unlikely()s+ are unnecessary now for any paths leading to the usual suspects+ like BUG(), printk(), panic() etc. [but let's keep them for now for+ older This "error" preprocessor function is > commented out here?