echo ‘main(){}’|aarch64-poky-linux-gcc -E -v -
forlinx@ubuntu:/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux$ echo 'main(){}'|aarch64-poky-linux-gcc -E -v -
Using built-in specs.
COLLECT_GCC=aarch64-poky-linux-gcc
Target: aarch64-poky-linux
Configured with: ../../../../../../work-shared/gcc-9.2.0-r0/gcc-9.2.0/configure --build=x86_64-linux --host=x86_64-pokysdk-linux --target=aarch64-poky-linux --prefix=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr --exec_prefix=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr --bindir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux --sbindir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux --libexecdir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/libexec/aarch64-poky-linux --datadir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/share --sysconfdir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/etc --sharedstatedir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/com --localstatedir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/var --libdir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux --includedir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/include --oldincludedir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/include --infodir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/share/info --mandir=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/share/man --disable-silent-rules --disable-dependency-tracking --with-libtool-sysroot=/home/neo/imx8mq-L5/xwayland-8mq/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-aarch64/9.2.0-r0/recipe-sysroot --with-gnu-ld --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-multilib --enable-c99 --enable-long-long --enable-symvers=gnu --enable-libstdcxx-pch --program-prefix=aarch64-poky-linux- --without-local-prefix --enable-lto --disable-libssp --enable-libitm --disable-bootstrap --disable-libmudflap --with-system-zlib --with-linker-hash-style=gnu --enable-linker-build-id --with-ppl=no --with-cloog=no --enable-checking=release --enable-cheaders=c_global --without-isl --with-gxx-include-dir=/not/exist/usr/include/c++/9.2.0 --with-build-time-tools=/home/neo/imx8mq-L5/xwayland-8mq/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-aarch64/9.2.0-r0/recipe-sysroot-native/usr/aarch64-poky-linux/bin --with-sysroot=/not/exist --with-build-sysroot=/home/neo/imx8mq-L5/xwayland-8mq/tmp/work/x86_64-nativesdk-pokysdk-linux/gcc-cross-canadian-aarch64/9.2.0-r0/recipe-sysroot --enable-poison-system-directories --enable-nls --with-glibc-version=2.28 --enable-initfini-array --enable-__cxa_atexit
Thread model: posix
gcc version 9.2.0 (GCC)
COLLECT_GCC_OPTIONS='-E' '-v' '-mlittle-endian' '-mabi=lp64'
/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/libexec/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/cc1 -E -quiet -v - -mlittle-endian -mabi=lp64
ignoring nonexistent directory "/not/exist/usr/lib/aarch64-poky-linux/9.2.0/include"
ignoring nonexistent directory "/not/exist/usr/local/include"
ignoring nonexistent directory "/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/../../../../../aarch64-poky-linux/include"
ignoring nonexistent directory "/not/exist/usr/include/"
#include "..." search starts here:
#include <...> search starts here:
/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/include
/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/include-fixed
End of search list.
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
main(){
}
COMPILER_PATH=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/libexec/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/:/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/libexec/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/:/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/libexec/aarch64-poky-linux/gcc/aarch64-poky-linux/:/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/:/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux/gcc/aarch64-poky-linux/
LIBRARY_PATH=/opt/fsl-imx-xwayland/5.4-zeus/sysroots/x86_64-pokysdk-linux/usr/lib/aarch64-poky-linux/gcc/aarch64-poky-linux/9.2.0/
COLLECT_GCC_OPTIONS='-E' '-v' '-mlittle-endian' '-mabi=lp64'
库
查询某个库的路径
使用选项-print-file-name=<lib_name>
如列出libstdc++.so.6的库路径：aarch64-poky-linux-gcc -print-file-name=libstdc++.so.6
