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> I want to make a target root filesystem. I will compile my own > /linuxrc file from C using the cross-compiler, but I want to make it > dynamically linked to the glibc library. > > Are the target glibc libraries generated by crosstool, or do I have to > use the --builduserland flag? I don't want to use ptx, I want to put > the root system together myself. > > If crosstool has already made the target libraries for me, where under > this "gcc-4.1-20050716-glibc-2.3.2" directory can I find them? I've also got my own custom system to build the target's filesystem. The way I do it, is define a list of files I want, and then find where they are by invoking gcc -print-file-name=libc.so In particular, here's a Makefile excerpt: GCCLIBDIR := $(patsubst %/libc.so,%,$(shell $(CROSS_COMPILER_PREFIX)gcc -print-file-name=libc.so)) libc: $(STAGING_DIR)/lib @echo "Populating C runtime library files..." @cd $(GCCLIBDIR)/.. ; echo "$(strip $(libc_FILES))" | tr " " "\n" | \ cpio -pu --sparse --quiet $(CANON_STAGING_DIR) where STAGING_DIR is a (possibly relative) path to the root of the staging area for the target's filesystem, CANON_STAGING_DIR is the same, but a fully qualified path, and libc_FILES the list of files I want to copy into the target filesystem, e.g. "lib/libc.so lib/libc.so.6 lib/libc-2.3.2.so lib/ld-linux.so.2 lib/ld-2.3.2.so ..." That way, whatever toolchain I build with, the Makefile grabs that toolchain's libraries automatically when it goes to build the target filesystem. So what I built with is always what I run with. -----Carl ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sourceware.org
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