我发现了两个编译器的二进制文件，如下所示 -
/usr/linux-k1om-4.7/bin/x86_64-k1om-linux-gcc
和
/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/bin/k1om-mpss-linux/k1om-mpss-linux-gcc
我已经能够使用它们编译一个简单的测试程序并在 xeon phi 上成功运行可执行文件。
这两个是一样的吗？为什么他们在不同的位置？它们背后的命名约定是什么？
编辑：结果*gcc -v。两者都是一样的，除了$COLLECT_GCC。
Using built-in specs.
COLLECT_GCC=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/bin/k1om-mpss-linux/k1om-mpss-linux-gcc
COLLECT_LTO_WRAPPER=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/libexec/k1om-mpss-linux/gcc/k1om-mpss-linux/4.7.0/lto-wrapper
Target: k1om-mpss-linux
Configured with: /sandbox/build/tmp/tmp/work/x86_64-nativesdk-mpsssdk-linux/gcc-cross-canadian-k1om-4.7.0+mpss3.5.1-1/gcc-4.7.0+mpss3.5.1/configure --build=x86_64-linux --host=x86_64-mpsssdk-linux --target=k1om-mpss-linux --prefix=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr --exec_prefix=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr --bindir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/bin/k1om-mpss-linux --sbindir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/bin/k1om-mpss-linux --libexecdir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/libexec/k1om-mpss-linux --datadir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/share --sysconfdir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/etc --sharedstatedir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/com --localstatedir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/var --libdir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/lib/k1om-mpss-linux --includedir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/include --oldincludedir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/include --infodir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/share/info --mandir=/opt/mpss/3.5.1/sysroots/x86_64-mpsssdk-linux/usr/share/man --disable-silent-rules --disable-dependency-tracking --with-libtool-sysroot=/sandbox/build/tmp/tmp/sysroots/x86_64-nativesdk-mpsssdk-linux --with-gnu-ld --enable-shared --enable-languages=c,c++ --enable-threads=posix --disable-multilib --enable-c99 --enable-long-long --enable-symvers=gnu --enable-libstdcxx-pch --program-prefix=k1om-mpss-linux- --enable-target-optspace --enable-lto --enable-libssp --disable-bootstrap --disable-libgomp --disable-libmudflap --with-system-zlib --with-linker-hash-style=gnu --enable-cheaders=c_global --with-local-prefix=/opt/mpss/3.5.1/sysroots/k1om-mpss-linux/usr --with-gxx-include-dir=/opt/mpss/3.5.1/sysroots/k1om-mpss-linux/usr/include/c++ --with-build-time-tools=/sandbox/build/tmp/tmp/sysroots/x86_64-linux/usr/k1om-mpss-linux/bin --with-sysroot=/opt/mpss/3.5.1/sysroots/k1om-mpss-linux --with-build-sysroot=/sandbox/build/tmp/tmp/sysroots/knightscorner --disable-libunwind-exceptions --disable-libssp --disable-libgomp --disable-libmudflap --with-mpfr=/sandbox/build/tmp/tmp/sysroots/x86_64-nativesdk-mpsssdk-linux --with-mpc=/sandbox/build/tmp/tmp/sysroots/x86_64-nativesdk-mpsssdk-linux --enable-nls --enable-__cxa_atexit
Thread model: posix
gcc version 4.7.0 20110509 (experimental) (GCC)