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Hi, I am trying to run C++ programs on an OS less system. I have an already prebuild gnupro tools. I have written a crt0.S and a syscalls.c which impelment _write , _read, _sbrk and a list of other calls which are given in the gnupro documentation. I have compiled these two files using xscale-coff-gcc -c crt0.S -o crt0.o xscale-coff-gcc -c syscalls.c -o syscalls.o I then wrote a simple cpp program to do an sprintf and compiled it using the following xscale-coff-g++ -specs="specsfile" test.cpp -o test.o The specs file contains the following %rename link old_link *link -Tlnkscript.ld%s %old_link *startup crt0%O%s syscalls%O%s I have tested this setup using malloc and also new and it works. But when I use sprintf or printf, they do not go to the _write that I have implemented in syscalls.c. Do I have to implment the reentrant versions of these functions, _write_r etc. Or is my using the specs option wrong? Do I have to recompile newlib with my crt0.S and syscalls.c. If so how can I do that. I really appreciate your answers. Thanks Vish ------ 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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