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Nick Patavalis writes: > On Tue, Jun 03, 2003 at 07:25:03AM -0700, Doug Evans wrote: > > .div is in gcc/config/sparc/lb1spc.asm in the gcc sources. > > > > I'm guessing no one's tried running linux on an old v7 machine > > because the linux configurations don't include lb1spc.asm in libgcc.a. > > [not surprising] > > Actually my target processor is a quite new LEON, which is compliant > with sparc-v8, but with the integer multiply / divide instructions > disabled (according to the gcc-manual is the only difference between > v7 / v8, as far as gcc is concerned). Ah. > As I am planning on eventually running linux on it, I would like to > have a single toolkit. I also figure that since gcc accepts the > "-mcpu=v7" the integet mul/div instructions *should* de included in > libgcc.a (i.e. not including them could be considered a "bug" of > sorts). > > Do you know how to make gcc build with these functions included in > "libgcc.a". I mean what build-scripts, config-files, etc should be > changed to make this happen? Essentially what you want to do is add LIB1ASMSRC = sparc/lb1spc.asm LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3 to some "t-*" file in gcc. In the gcc-3.2 tree (I'm guessing 3.3 is equivalent), the entry for sparc-linux in gcc/config.gcc is sparc-*-linux*) # Sparc's running GNU/Linux, libc6 tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/linux.h" tmake_file="t-slibgcc-elf-ver t-linux sparc/t-crtfm" extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o" gnu_ld=yes float_format=sparc ;; I'd say create file gcc/config/sparc/t-linux that contains LIB1ASMSRC = sparc/lb1spc.asm LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3 and then modify the above: - tmake_file="t-slibgcc-elf-ver t-linux sparc/t-crtfm" + tmake_file="t-slibgcc-elf-ver t-linux sparc/t-crtfm sparc/t-linux" and give it a shot. Haven't tried it of course, but it feels right. ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com
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