Shan Wang wrote: > Hi all, > > > > I downloaded the SDE lite toolchain from MIPS Technologies. I can use > the makefiles to build all the examples come with the package and test > them with the simulator. But when I tried to use sde-gcc to cross > compile the hello world example directly: Note that those examples are for a bare-metal embedded system without OS, they won't work on Linux/MIPS. > sde-gcc -Wall -mips32 -mtune=4kc -EL hello.c -o hello Also, sde-gcc is a compiler for embedded ELF targets, it won't produce Linux binaries. > I got errors like the following: > > /home/linuxdev/packages/sde-lite-linux/bin/../lib/gcc/sde/3.4.4/../../.. > /../sde/bin/ld: warning: cannot find entry symbol __start; > > defaulting to 0000000080020000 > > /tmp/ccEaLxlW.o: In function `main': > > hello.c:(.text+0x20): undefined reference to `printf' > > hello.c:(.text+0x20): relocation truncated to fit: R_MIPS_26 against > `printf' > > collect2: ld returned 1 exit status This is the expected result, since your command line misses to include the necessary libraries and the board support package. > Does that mean the SDE lite package is not a complete cross toolchain, > can I use it to compile my own application? This depends on what your target platform is. If it is Linux/MIPS, you may want to have a look at http://www.linux-mips.org/wiki/Toolchains. Thiemo
