recreating C source from binary

Holm Tiffe <holm at freibergnet.de> wrote: I found http://code.google.com/p/unix-jun72 some days ago which gave me a feeling of "lets try again" ;) Might be the case. Especially when you look through the disassembled programms and you see that the programs are compiled with different startup routines (crt0.s). Some programs are compiled using a PLZ/ASM startup routine, some are compiled using a C-Assembler module. Some modules containing a *whatstr[] some dont... really looks like Zilog just recompiled programs when something changed and not recompiled everything for a new version of ZEUS (what this WEGA is). This sucks man ;) I want to get a 1:1 compilation result :/ With different crt0.s I can cope - with compilers generating different ASM code I can't. sync(M) was easy ;) #81 cas -u -o compat1crt.o compat1crt.s #82 cc -O -c sync.c #83 ld -o sync -e start compat1crt.o sync.o -lc #84 strip sync #85 cmp sync /bin/sync #86 I'm not sure about WEGA versions < 3.0 but 3.0 and 3.1 have the same C-Compiler. I'm pretty sure The WEGA-crew didn't had any sourcefiles to their operating system. I talked once to Peter Hoge (The Kernel developer of WEGA) and he told me all they did was disassembling stuff they needed to change and then re-inventing the wheel (basically doing what I'm doing now). They had no sources. Just access to a S8000 system where they stole.... err.... "adjusted" the operating system from ;) Regards, Oliver