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Hello, I am having trouble making a cross-compiler that generates ELF object files with an underscore ("_") added to the beginning of the symbol names. Here is my setup: Windows NT 4.0 Server Cygwin 1.1.2 binutils-2.10 gcc-2.95.2 newlib-1.8.2 target=m68k-elf prefix=/gcc-m68k Edited /source/gcc-2.95.2/gcc/config/m68k/m68kelf.h: changed USER_LABEL_PREFIX from "" to "_" prior to running "configure" and "make" The compiler build goes ok and everything seems to work until it tries to link, when I get undefined symbols. When I use objdump on my object files, global symbols do not have underscores as I would expect (e.g. my main.o contains the symbol "main" instead of "_main"). However, the file "crt0.o" generated while building the compiler contains the symbol "_start", not "start", which it should. It seems that the use of the SYM() macro in an assembly-language file does appropriately prepend the underscore to symbol names. For some reason the C compiler does not seem to be doing this however. Should I do something else? I need to add the underscores in order to make the compiled code compatible with stuff built by another compiler. Using COFF works just fine, changing "USER_LABEL_PREFIX" in "coff.h" as opposed to "m68kelf.h" allows me to build an m68k-coff compiler that properly adds the underscores and I get no linker errors. However, for other reasons I would rather use ELF. Anyone know if there is a bug in the way USER_LABEL_PREFIX is used in the ELF source code? Thanks a lot for any help you can offer Chris ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sourceware.cygnus.com
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