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> > Gcc for arm generates 24 bit branch instructions I wonder if there's a > > flag ( or maybe a patch exists) that would allow me to tell it to generate > > 32 bit relative branch instructions. > > Eh? The ARM doesn't have a 32-bit branch instruction. > The "-mlong-calls" option in the GCC trunk and 3.0 branch (though not 2.95.x) > might do what you want, though. We solved that one by making a "bx_to" function. Just... bx_to: bx r0 Then for any function that's located in the far region of address space, you can call it as rv = bx_to(function_ptr, arg1, arg2, arg3); Note that each function you call this way has to have a throw-away first parameter which will always be equal to the address of the function being called, but that's no biggie. ------------------------------------------- Carl Miller Firmware Engineer chaz@gordian.com Gordian, Inc. (714) 850-0205 http://www.gordian.com ------ 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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