On Mon, Oct 12, 2009 at 4:31 PM, Bingfeng Mei <b...@broadcom.com> wrote: > Hello, > I ran into an issue with the LTO merges when updating to current trunk. > The problem is that my target calls a few functions/uses some data structures > in the gcc directory: c_language, paragma_lex, c_register_pragma, etc. > > gcc -m32 -g -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings > -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes > -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros > -Wno-overlength-strings -Wold-style-definition -Wc++-compat -fno-common > -DHAVE_CONFIG_H -o lto1 \ > lto/lto-lang.o lto/lto.o lto/lto-elf.o attribs.o main.o > tree-browser.o libbackend.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a > -L/projects/firepath/tools/work/bmei/packages/gmp/4.3.0/lib > -L/projects/firepath/tools/work/bmei/packages/mpfr/2.4.1/lib -lmpfr -lgmp > -rdynamic -ldl -L../zlib -lz > -L/projects/firepath/tools/work/bmei/packages/libelf/lib -lelf > ../libcpp/libcpp.a ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a > -lelf > > When compiling for lto1 in above step, I have many linking errors > consequently. > I tried to add some extra object files like c-common.o, c-pragma.o, etc into > lto/Make-lang.in. More linking errors are produced. One problem is that lto > code redefines some data exist in the main code: flag_no_builtin, flag_isoc99 > lang_hooks, etc, which prevent it from linking with object files in main > directory. > > What is the clean solution for this? Thanks in advance.
You should not use C frontend specific stuff when not building the C frontend. Richard. > Cheers, > Bingfeng Mei > > >
