a better version of cpp test to demo the "automatical" way of initialize search path and builtin macro
In previous cppTest, tons of builtin-macro are hardcoded. Looking at cc1[plus] which can generate by translating user input options. Similarly is search path.
Based on that, we need a tons of static libs, those are similar to cppTest. However, we need more "gcc-building" statlic lib like isl, mpz, mpfr, gmp, decnumber, z and dl which is dynamic lib. They can be found in gcc-build directory. However, to simplify linking command, I create all symlink to my workspace directory.
/home/nick/Downloads/gcc-10.2.0/gcc-10.2.0-debug-libcpp-install/bin/g++ -L"/home/nick/eclipse-2021/parserTest" -o "parserTest" ./src/parserTest.o -lcfamily -lparser -lcfamily -lcpp -lgcc_main -lcommon-target -lcommon_special -liberty -lbacktrace -lisl -lmpc -lmpz -lmpfr -lgmp -ldecnumber -lz -ldl
cfamily: it is create by including all gcc/c-family/*.o. i.e. ar rvs libcfamily $(ls *.o)
parser: similarly, it is created by all obj in gcc/cp. ar rvs libparser.a $(ls *.o)
gcc_main: this is based on original libbackend.a which is a thin archive. So, first convert this thin archive by for i in $(ar t libbackend.a); do ar rvs libbackend_real.a "$i"; done And then adding following obj to it to make a new libgcc_main.a. see it diffs like this:
ar t libbackend_real.a | sort > /tmp/back.txt ar t libgcc_main.a | sort > /tmp/gcc.txt comm --check-order -3 /tmp/back.txt /tmp/gcc.txt attribs.o cc1plus-checksum.o glibc-c.o i386-c.o
common_special: it is based on original libcommon.a by removing ggc-none.o in other words, it is equivalent to: libcommon.a <====> ar d libcommon.a gcc-none.o This is because we need ggc-page.o which is conflict with ggc-none.o
Finally, static linking order is VERY IMPORTANT. ORDER MATTERS!