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Most of the time, this error occurs when you use a #define that can't be found. (ie. defined in a header file you're not including)... --- Carl Miller <chaz@energoncube.net> wrote: > On Wed, Jul 24, 2002 at 04:25:26PM +0200, Matthias Fertig > wrote: > > i ran powerpc-eabi-gcc > > > > powerpc-eabi-gcc -g -S -mcpu=555 -I../../mpc555/include > main.c > > > > and looked into main.s > > > > > > #231: .LM18: > > #232: mtspr EIE, r3 > > #233: .stabn 68,0,44,.LM19-main > > > > the "move to special purpose register" looks good, for my > opinion. > > What is EIE defined as? I don't do much PPC assembly these > days, but I > seem to remember that PPC SPR numbers are of a small and > oddball bit > width (was it ten bits wide?). It's possible this error could > arise if > EIE were defined to be a quantity too large to fit in this > field. If > my ten bits guess is correct, then double-check that EIE <= > 0x3ff, for > example. > > > i don't understand the reason of the error? what does it > mean, if there > > is a problem with an allocaion type? > > It's an error generally given with branch/jump instructions. > In that > scenario, it means that the address you're trying to jump to > cannot be > represented in the instruction you're trying to jump with from > the address > you're trying to jump from. Example: perhaps you're trying to > use a > PC-relative branch with only 8 bits of offset and your branch > target is > more than +/- 128 away. > > It might also mean that the particular flavor of branch > instruction that > either you've asked for, or that is required to reach the > branch target, > is not supported by the particular revision of CPU gcc thinks > you're > compiling for. Example: say you're using a CPU architecture > called FARM > (yes, I'm making this up) that has PC-relative branches. > FARM3 only had > PCrel branches with 8 bit offsets, but FARM4 added a version > with a 12-bit > offset. If GCC sees that the 12-bit variant is required to > reach your > branch target, but you've told it (-mcpu= option to either > configure or > GCC itself) that you're compiling specifically for FARM3, it > may throw an > error complaining about the relocation type. > > I've never seen this type of error thrown for a PPC mtspr > instruction, > but based on what it means for branches, I've gotta guess it's > complaining > that whatever EIE is, it will not fit in the SPRN field of the > mtspr > instruction. > > Good luck! > > > Carl Miller > > > > "William A. Gatliff" schrieb: > > > > > > Matthias: > > > > > > > powerpc-eabi-gcc -g -c -mcpu=555 -I$(INCLUDES) -o > main.o main.c > > > > /tmp/cckZyIqV.s: Assembler messages: > > > > /tmp/cckZyIqV.s:232: Error: unsupported relocation > type > > > > /tmp/cckZyIqV.s:232: Error: unsupported relocation > type > > > > make: *** [main.o] Fehler 1 > > > > > > Run the source file through gcc with -g -S, and have a > look at line > > > 232. This could be a gcc or assembler problem, knowing > what the > > > offending instruction is would help. > > ------ > Want more information? See the CrossGCC FAQ, > http://www.objsw.com/CrossGCC/ > Want to unsubscribe? Send a note to > crossgcc-unsubscribe@sources.redhat.com > __________________________________________________ Do You Yahoo!? Yahoo! Health - Feel better, live better http://health.yahoo.com ------ 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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