Hi, I have a question regarding the differences in the object files generated using different versions of gcc. I'm using gcc-3.2.1 and gcc-4.1.0, both crosscompiled for target arm-elf to compile a simple hello world example. 1) The first version is gcc-3.2.1 compiled using this options: Reading specs from /opt/gcc/bin/../lib/gcc-lib/arm-elf/3.2.1/specs Configured with: ../CrossSources/gcc-3.2.1/configure --target=arm-elf --prefix=/opt/gcc/ --enable-languages=c,c++ --with-gnu-as --with-gnu-ld --with-newlib --with-gxx-include-dir=/opt/gcc/arm-elf/include --disable-checking -v Thread model: single gcc version 3.2.1 and when I run the command: arm-elf-gcc-3.2.1 hello.c -o hello, it generates a file of 343K. 2) The second version is gcc-3.2.1 compiled using this options: Using built-in specs. Target: arm-elf Configured with: /home/regaz/Dottorato/gcc/sources/gcc/configure --target=arm-elf --prefix=/opt/gcc/ --enable-languages=c,c++ --with-gnu-as --with-gnu-ld --with-newlib --with-gxx-include-dir=/opt/gcc/arm-elf/include/ -v Thread model: single gcc version 4.1.0 20050516 (experimental) and when I run the same command: arm-elf-gcc-4.1.0 hello.c -o hello, it generates a file of 171K. I would like to ask which one are the main differences in the object file generated, and if is possible (using some compiler options) to generate the same object file of version 4.1.0 using the version 3.2.1 Thanks! -- Francesco Regazzoni, PhD student at ALaRI - USI, Lugano [http://www.alari.ch]
