[Bug other/27348] memcmp reads past end of strings
--- Comment #3 from fnf at specifix dot com 2006-04-28 13:54 --- Subject: Re: memcmp reads past end of strings On Friday 28 April 2006 09:36, rguenth at gcc dot gnu dot org wrote: > > --- Comment #2 from rguenth at gcc dot gnu dot org 2006-04-28 13:36 > --- > In this particular case this should not happen as the memcmp is guarded by the > length comparison before. > > Heres an example run: $ export MUDFLAP_OPTIONS=-viol-gdb $ build/gengtype warning: structure `eh_range' used but not defined warning: structure `jdeplist_s' used but not defined warning: structure `java_lexer' used but not defined warning: structure `ZipDirectory' used but not defined warning: structure `VEC_cp_token_position_heap' used but not defined warning: structure `c_arg_info' used but not defined warning: structure `c_switch' used but not defined warning: structure `et_node' used but not defined warning: structure `loop' used but not defined warning: structure `ipa_reference_vars_info_d' used but not defined warning: structure `reg_info_def' used but not defined *** mudflap violation 1 (check/read): time=1146233898.486348 ptr=0x809da1e size=8 pc=0x8851ed location=`(memcmp 1st arg)' /opt/local/latest/trunk/lib/libmudflap.so.0(__mf_check+0x3d) [0x8851ed] /opt/local/latest/trunk/lib/libmudflap.so.0(__mfwrap_memcmp+0x8a) [0x8917ba] build/gengtype(get_output_file_with_visibility+0x901) [0x8056912] Nearby object 1: checked region begins 30B into and ends 1B after mudflap object 0x842f368: name=`string literal' bounds=[0x809da00,0x809da24] size=37 area=static check=104r/112w liveness=112 alloc time=1146233889.975351 pc=0x884c4d number of nearby objects: 1 [ stuff deleted ] #7 0x08056912 in get_output_file_with_visibility (input_file=0x809da00 "/src/latest/trunk/src/gcc/gcc/tree.h") at /src/latest/trunk/src/gcc/gcc/gengtype.c:1275 1275if (memcmp (basename, lang_dir_names[i], strlen (lang_dir_names[i])) == 0 (gdb) x/s basename 0x809da1e : "tree.h" (gdb) x/s lang_dir_names[i] 0x809d53b : "treelang" (gdb) p strlen (lang_dir_names[i]) $1 = 8 (gdb) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27348
[Bug middle-end/28198] [4.2 Regression] ICE building mips-elf cross compiler
--- Comment #7 from fnf at specifix dot com 2006-06-30 10:52 --- Subject: Re: [4.2 Regression] ICE building mips-elf cross compiler On Thursday 29 June 2006 13:55, pinskia at gcc dot gnu dot org wrote: > Can you build a x86 compiler after revision 115072 and try again, I fixed the > issue mentioned in comment #5. I updated my sources last night and tried building a native x86 compiler this morning. I'm getting an internal error still, though this one looks different. I wonder if this is due to problems with precompiled headers and Fedora Core 4's exec shield. I'll try disabling the exec shield and see if the problem goes away. /build/latest/trunk/i686-pc-linux-gnu/gcc/./gcc/xgcc -shared-libgcc -B/build/latest/trunk/i686-pc-linux-gnu/gcc/./gcc -nostdinc++ -L/build/latest/trunk/i686-\pc-linux-gnu/gcc/i686-pc-linux-gnu/libstdc++-v3/src -L/build/latest/trunk/i686-pc-linux-gnu/gcc/i686-pc-linux-gnu/libstdc++-v3/src/.libs -B/opt/local/latest/\trunk/i686-pc-linux-gnu/bin/ -B/opt/local/latest/trunk/i686-pc-linux-gnu/lib/ -isystem /opt/local/latest/trunk/i686-pc-linux-gnu/include -isystem /opt/local/\latest/trunk/i686-pc-linux-gnu/sys-include -Winvalid-pch -Wno-deprecated -x c++-header -g -O2 -D_GNU_SOURCE -I/build/latest/trunk/i686-pc-linux-gnu/gcc/i686\-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu -I/build/latest/trunk/i686-pc-linux-gnu/gcc/i686-pc-linux-gnu/libstdc++-v3/include -I/src/latest/trunk/s\rc/gcc/libstdc++-v3/libsupc++ /src/latest/trunk/src/gcc/libstdc++-v3/include/precompiled/extc++.h -O2 -g -o ./i686-pc-linux-gnu/bits/extc++.h.gch/O2g.gch; /build/latest/trunk/i686-pc-linux-gnu/gcc/i686-pc-linux-gnu/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:235: internal compiler error:\ tree check: expected integer_cst, have scope_ref in tree_int_cst_sgn, at tree.c:4484 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28198
[Bug c++/28217] [4.2 regression] ICE in tree_int_cst_sgn
--- Comment #5 from fnf at specifix dot com 2006-07-04 15:42 --- Subject: Re: [4.2 regression] ICE in tree_int_cst_sgn On Tuesday 04 July 2006 10:39, rguenth at gcc dot gnu dot org wrote: > Testcase? Works for me... 28219 has a testcase -Fred -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28217
[Bug c++/28217] [4.2 regression] ICE in tree_int_cst_sgn
--- Comment #9 from fnf at specifix dot com 2006-07-11 09:08 --- Subject: Re: [4.2 regression] ICE in tree_int_cst_sgn On Tuesday 11 July 2006 04:44, schwab at suse dot de wrote: > This is now causing bootstrap to fail. I'm currently configuring with --disable-libstdcxx-pch to work around the problem. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28217
