The ELFtoaout package contains the Sparc ELF to a.out converter.
The following patch fixes some 64 bit issues with elftoaout:
patch -Np1 -i ../elftoaout-2.3-64bit_fixes-1.patch
Compile the ELFtoaout package:
make
Install the package:
install -v -m 0755 -s elftoaout /cross-tools/bin
Details on this package are located in Section 10.69.2, “Contents of ELFtoaout.”