Your message dated Mon, 18 Apr 2016 18:43:10 +0000 with message-id <[email protected]> and subject line Bug#821336: Removed package(s) from unstable has caused the Debian Bug report #799953, regarding gcc-4.7/4.8/4.9/5: incorrect double to integer conversion on i386 to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 799953: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799953 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: gcc Version: 4:5.2.1-4 Severity: normal Tags: upstream Hello, I believe I've found a bug in GCC that affects plymouth and maybe other packages on i386. The following minimal code produces an incorrect result. ---- $ cat test.c #include <stdio.h> #include <stdlib.h> void main(int argc, char **argv) { float f = 9999999; double d = f*atoi(argv[1]); float g = d; int i = d; printf("f = %f\n", f); printf("d = %f\n", d); printf("g = %f\n", g); /* printf("i = %d\n", i); */ printf("fractional part of d is %f\n", d-i); } $ gcc-4.9 -O1 -o test test.c && ./test 100 f = 9999999.000000 d = 999999900.000000 g = 999999900.000000 fractional part of d is 28.000000 ---- The variable 'i' should contain the integral part of 'd', and 'd-i' should give 0.000000. This is a standard method to calculate the fractional part of a number. The bug disappears with optimization turned off (-O0) or with uncommented printf statement. Assembly output shows that an intermediate float is used for conversion instead of a double. The bug is present in gcc-snapshot package from unstable, but not in gcc-4.6 from wheezy. ---- $ gcc-5 -O1 -o test test.c && ./test 100 f = 9999999.000000 d = 999999900.000000 g = 999999900.000000 fractional part of d is 28.000000 $ gcc-4.6 -O1 -o test test.c && ./test 100 f = 9999999.000000 d = 999999872.000000 g = 999999872.000000 fractional part of d is 0.000000 ---- Cheers, MU ---- $ gcc-4.9 -v Using built-in specs. COLLECT_GCC=gcc-4.9 COLLECT_LTO_WRAPPER=/usr/lib/gcc/i586-linux-gnu/4.9/lto-wrapper Target: i586-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.9.2-10' --with-bugurl=file:///usr/share/doc/gcc-4.9/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.9 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-i386/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-i386 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-i386 --with-arch-directory=i386 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-targets=all --enable-multiarch --with-arch-32=i5 86 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=i586-linux-gnu --host=i586-linux-gnu --target=i586-linux-gnu Thread model: posix gcc version 4.9.2 (Debian 4.9.2-10) $ gcc-5 -v Using built-in specs. COLLECT_GCC=gcc-5 COLLECT_LTO_WRAPPER=/usr/lib/gcc/i586-linux-gnu/5/lto-wrapper Target: i586-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 5.2.1-17' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-i386/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-i386 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-i386 --with-arch-directory=i386 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-targets=all --enable-multiarch --with-arch-32=i58 6 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=i586-linux-gnu --host=i586-linux-gnu --target=i586-linux-gnu Thread model: posix gcc version 5.2.1 20150911 (Debian 5.2.1-17) gcc-4.6 -v Using built-in specs. COLLECT_GCC=gcc-4.6 COLLECT_LTO_WRAPPER=/usr/lib/gcc/i486-linux-gnu/4.6/lto-wrapper Target: i486-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.6.3-14' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --enable-targets=all --with-arch-32=i586 --with-tune=generic --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu Thread model: posix gcc version 4.6.3 (Debian 4.6.3-14) ---- -- System Information: Debian Release: 8.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'stable'), (500, 'oldstable') Architecture: i386 (i686) Kernel: Linux 3.16.0-4-686-pae (SMP w/1 CPU core) Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gcc depends on: ii cpp 4:5.2.1-4 ii gcc-5 5.2.1-17 Versions of packages gcc recommends: ii libc6-dev [libc-dev] 2.19-22 Versions of packages gcc suggests: ii autoconf 2.69-8 ii automake 1:1.14.1-4 pn bison <none> pn flex <none> pn gcc-doc <none> ii gcc-multilib 4:5.2.1-4 ii gdb 7.7.1+dfsg-5 ii libtool 2.4.2-1.11 ii make 4.0-8.1 ii manpages-dev 3.74-1 -- no debconf information
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--- Begin Message ---Version: 4.8.5-4+rm Dear submitter, as the package gcc-4.8 has just been removed from the Debian archive unstable we hereby close the associated bug reports. We are sorry that we couldn't deal with your issue properly. For details on the removal, please see https://bugs.debian.org/821336 The version of this package that was in Debian prior to this removal can still be found using http://snapshot.debian.org/. This message was generated automatically; if you believe that there is a problem with it please contact the archive administrators by mailing [email protected]. Debian distribution maintenance software pp. Scott Kitterman (the ftpmaster behind the curtain)
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