Re: GCC Support of Function/Variable Attributes
On Thu, 28 Feb 2013, Jeffrey Walton wrote: I'm having trouble compiling sources adorned with the aligned attribute under Clang 3.1. Clang claims its GCC 4.2.1 compatible: $ clang -dM -E -x c /dev/null | grep -i gnuc #define __GNUC_MINOR__ 2 #define __GNUC_PATCHLEVEL__ 1 #define __GNUC_STDC_INLINE__ 1 #define __GNUC__ 4 When did GCC add support for function and variable attributes? Specifically, __attribute__(aligned) for x86/x64? Did the aligned attribute come into being after GCC 4.2? That wouldn't be the only place where clang is not perfectly compatible with gcc... http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html When you click on "Manual" on gcc's webpage, you are sent to a list of manuals per version: http://gcc.gnu.org/onlinedocs/ Seems easy to check the oldest one: http://gcc.gnu.org/onlinedocs/gcc-2.95.3/gcc_4.html#SEC90 (and if it hadn't been supported then, you could have used a dichotomy) -- Marc Glisse
Re: GCC Support of Function/Variable Attributes
On Thu, Feb 28, 2013 at 8:05 PM, Andrew Pinski wrote: > On Thu, Feb 28, 2013 at 3:54 PM, Jeffrey Walton wrote: >> Hi All, >> >> I'm having trouble compiling sources adorned with the aligned >> attribute under Clang 3.1. Clang claims its GCC 4.2.1 compatible: > > This is not a good list to ask this question as if clang claims to > 4.2.1 compatible and is not then it is a bug in clang and you should > report your findings to them rather to GCC. The aligned attribute has > been in GCC since at least 3.0. Also if you need help with GCC's > behavior, the list you want to use instead of the gcc@ list is the > gcc-help@ list. Thanks ANdrew and Marc. My apologies for the extra chatter. Jeff
gcc-4.6-20130301 is now available
Snapshot gcc-4.6-20130301 is now available on ftp://gcc.gnu.org/pub/gcc/snapshots/4.6-20130301/ and on various mirrors, see http://gcc.gnu.org/mirrors.html for details. This snapshot has been generated from the GCC 4.6 SVN branch with the following options: svn://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch revision 196395 You'll find: gcc-4.6-20130301.tar.bz2 Complete GCC MD5=5de5253a703569294f9b5f04a78877b4 SHA1=65641a06877ed75b97cb1e7605762c57bdfd7515 Diffs from 4.6-20130222 are available in the diffs/ subdirectory. When a particular snapshot is ready for public consumption the LATEST-4.6 link is updated and a message is sent to the gcc list. Please do not use a snapshot before it has been announced that way.
