I'm trying to find the most recent toolchain possible that will have all tests pass. I'm using Glibc-2.8, from: ftp://sources.redhat.com/pub/glibc/snapshots/glibc-2.8-20080901.tar.bz2 I get poor results with recent HJL Binutils and gcc43. I'm also using linux-2.6.26.3 headers, but Linux headers have never affected toolchain test suites in my experience.
With Binutils-2.18, and gcc-4.2.5-20080827, I get perfect Binutils tests, but get three test failures from Glibc... iconvdata/bug-iconv6.out, iconvdata/tst-iconv7.out, and math/test-double.out. By dropping -mtune=native, from configparms, I lose a math/test-double.out failure from Glibc. My -mtune=native equals -mtune=prescott, according to gcc -v dummy.c, and -mtune=prescott has always caused toolchain failures for me. I retried with 'echo "CFLAGS += -march=i486 -mtune=i686" > configparms', and got all 3 failures, listed above. So math/test-double.out probably fails when -mtune is i686 or above (possibly i586 too). On my host system, with gcc41, and binutils-2.17, the glibc-2.8 test suite passes perfectly. Have any of you had all of glibc-2.8's tests pass with gcc42? robert
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