On Wed, 06 Aug 2008 10:32:26 -0400 Pavel Roskin <[EMAIL PROTECTED]> wrote:
> Quoting Colin D Bennett <[EMAIL PROTECTED]>: > > > Along these lines, can we use a gcc option to turn off the > > "trampoline requires executable stack" warnings that are generated > > by the dozens? I looked for the option in the gcc manual and could > > not find it. > > Please quote the exact message. What platform is it? I haven't seen > it. I have been using gcc 4.2.4 on x86 Linux. However, I just upgraded a machine to gcc 4.3.1, and it looks like the trampoline warnings are not produced by gcc 4.3.1... interesting. But they certainly are on 4.2.4: there are 103 trampoline warnings in all (see the end of this message). > > I think that the trampoline warning is the main thing left holding > > us back from a warning-free build. (IIRC there may be some > > strict-aliasing warnings too... but those can be fixed by fixing the > > code.) Ok, I checked and there are no strict aliasing warnings. Good. > Yes, either we should make the build less noisy by default, or we > should treat warnings as errors. Or maybe both. I agree. Regards, Colin system info ----------- x86 Linux; glibc 2.8; gcc 4.2.4; Gentoo. $ gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-4.2.4/work/gcc-4.2.4/configure --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/4.2.4 --includedir=/usr/lib/gcc/i686-pc-linux-gnu/4.2.4/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/4.2.4 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/4.2.4/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/4.2.4/info --with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/4.2.4/include/g++-v4 --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --disable-altivec --enable-nls --without-included-gettext --with-system-zlib --disable-checking --disable-werror --enable-secureplt --disable-multilib --enable-libmudflap --disable-libssp --disable-libgcj --with-arch=i686 --enable-languages=c,c++,treelang,fortran --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu Thread model: posix gcc version 4.2.4 (Gentoo 4.2.4 p1.0) trampoline warnings ------------------- ../util/i386/pc/grub-setup.c:93: warning: generating trampoline in object (requires executable stack) ../util/i386/pc/grub-setup.c:93: warning: generating trampoline in object (requires executable stack) ../util/i386/pc/grub-setup.c:93: warning: generating trampoline in object (requires executable stack) ../util/biosdisk.c:748: warning: generating trampoline in object (requires executable stack) ../kern/device.c:85: warning: generating trampoline in object (requires executable stack) ../kern/device.c:85: warning: generating trampoline in object (requires executable stack) ../kern/partition.c:90: warning: generating trampoline in object (requires executable stack) ../kern/partition.c:59: warning: generating trampoline in object (requires executable stack) ../fs/fshelp.c:58: warning: generating trampoline in object (requires executable stack) ../fs/affs.c:460: warning: generating trampoline in object (requires executable stack) ../fs/ext2.c:736: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:578: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:578: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:509: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:725: warning: generating trampoline in object (requires executable stack) ../fs/hfsplus.c:699: warning: generating trampoline in object (requires executable stack) ../fs/hfsplus.c:886: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:355: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:229: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:466: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:655: warning: generating trampoline in object (requires executable stack) ../fs/udf.c:772: warning: generating trampoline in object (requires executable stack) ../fs/ntfs.c:860: warning: generating trampoline in object (requires executable stack) ../fs/reiserfs.c:1270: warning: generating trampoline in object (requires executable stack) ../fs/sfs.c:531: warning: generating trampoline in object (requires executable stack) ../fs/xfs.c:624: warning: generating trampoline in object (requires executable stack) ../fs/afs.c:566: warning: generating trampoline in object (requires executable stack) ../partmap/pc.c:232: warning: generating trampoline in object (requires executable stack) ../partmap/gpt.c:123: warning: generating trampoline in object (requires executable stack) ../util/biosdisk.c:748: warning: generating trampoline in object (requires executable stack) ../kern/device.c:85: warning: generating trampoline in object (requires executable stack) ../kern/device.c:85: warning: generating trampoline in object (requires executable stack) ../kern/partition.c:90: warning: generating trampoline in object (requires executable stack) ../kern/partition.c:59: warning: generating trampoline in object (requires executable stack) ../fs/affs.c:460: warning: generating trampoline in object (requires executable stack) ../fs/ext2.c:736: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:578: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:578: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:509: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:725: warning: generating trampoline in object (requires executable stack) ../fs/hfsplus.c:699: warning: generating trampoline in object (requires executable stack) ../fs/hfsplus.c:886: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:355: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:229: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:466: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:655: warning: generating trampoline in object (requires executable stack) ../fs/udf.c:772: warning: generating trampoline in object (requires executable stack) ../fs/ntfs.c:860: warning: generating trampoline in object (requires executable stack) ../fs/reiserfs.c:1270: warning: generating trampoline in object (requires executable stack) ../fs/sfs.c:531: warning: generating trampoline in object (requires executable stack) ../fs/xfs.c:624: warning: generating trampoline in object (requires executable stack) ../fs/afs.c:566: warning: generating trampoline in object (requires executable stack) ../partmap/pc.c:232: warning: generating trampoline in object (requires executable stack) ../partmap/apple.c:182: warning: generating trampoline in object (requires executable stack) ../partmap/gpt.c:123: warning: generating trampoline in object (requires executable stack) ../fs/fshelp.c:58: warning: generating trampoline in object (requires executable stack) ../kern/device.c:85: warning: generating trampoline in object (requires executable stack) ../kern/device.c:85: warning: generating trampoline in object (requires executable stack) ../kern/partition.c:90: warning: generating trampoline in object (requires executable stack) ../kern/partition.c:59: warning: generating trampoline in object (requires executable stack) ../normal/main.c:200: warning: generating trampoline in object (requires executable stack) ../normal/menu_entry.c:972: warning: generating trampoline in object (requires executable stack) ../loader/i386/bsd.c:250: warning: generating trampoline in object (requires executable stack) ../fs/fshelp.c:58: warning: generating trampoline in object (requires executable stack) ../fs/ext2.c:736: warning: generating trampoline in object (requires executable stack) ../fs/ntfs.c:860: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:578: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:578: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:509: warning: generating trampoline in object (requires executable stack) ../fs/hfs.c:725: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:355: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:229: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:466: warning: generating trampoline in object (requires executable stack) ../fs/iso9660.c:655: warning: generating trampoline in object (requires executable stack) ../fs/xfs.c:624: warning: generating trampoline in object (requires executable stack) ../fs/affs.c:460: warning: generating trampoline in object (requires executable stack) ../fs/sfs.c:531: warning: generating trampoline in object (requires executable stack) ../fs/hfsplus.c:699: warning: generating trampoline in object (requires executable stack) ../fs/hfsplus.c:886: warning: generating trampoline in object (requires executable stack) ../fs/reiserfs.c:1270: warning: generating trampoline in object (requires executable stack) ../fs/udf.c:772: warning: generating trampoline in object (requires executable stack) ../fs/afs.c:566: warning: generating trampoline in object (requires executable stack) ../partmap/amiga.c:146: warning: generating trampoline in object (requires executable stack) ../partmap/apple.c:182: warning: generating trampoline in object (requires executable stack) ../partmap/pc.c:232: warning: generating trampoline in object (requires executable stack) ../partmap/sun.c:149: warning: generating trampoline in object (requires executable stack) ../partmap/gpt.c:123: warning: generating trampoline in object (requires executable stack) ../commands/terminal.c:29: warning: generating trampoline in object (requires executable stack) ../commands/ls.c:45: warning: generating trampoline in object (requires executable stack) ../commands/ls.c:66: warning: generating trampoline in object (requires executable stack) ../commands/ls.c:66: warning: generating trampoline in object (requires executable stack) ../commands/help.c:30: warning: generating trampoline in object (requires executable stack) ../commands/help.c:30: warning: generating trampoline in object (requires executable stack) ../commands/search.c:96: warning: generating trampoline in object (requires executable stack) ../commands/search.c:42: warning: generating trampoline in object (requires executable stack) ../commands/search.c:150: warning: generating trampoline in object (requires executable stack) ../disk/fs_uuid.c:31: warning: generating trampoline in object (requires executable stack) ../commands/blocklist.c:32: warning: generating trampoline in object (requires executable stack) ../commands/loadenv.c:157: warning: generating trampoline in object (requires executable stack) ../kern/elf.c:399: warning: generating trampoline in object (requires executable stack) ../kern/elf.c:355: warning: generating trampoline in object (requires executable stack) ../kern/elf.c:221: warning: generating trampoline in object (requires executable stack) ../kern/elf.c:177: warning: generating trampoline in object (requires executable stack) _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
