Dreamcast documentation archive

GNU Command Line Switches SH-ELF-GCC mandatory -ml compile for little endian target. -m4 generate code for sh4. recommended -lg -lm -lc -lgcc link against standard libraries. -o [file] specify name of output file. -Wall show all warnings. it's always a good thing to write code that compiles without all these warnings. :=P -m4-single-only *always* use this one instead of -m4 if you don't really need double precision floating point variables. (you most probably don't) -O3 use highest optimization level. valid values are -O0 (none) -O3 (max). --fast-math use the sh4-builtin math functions. optional -I [path] tell gcc about the path(s) to search for include files. -nostartfiles don't link standard startup files. -nostdlib don't link standard library. -e [label] define entry point (if other than main()). -c compile only, but don't link. -Wl,[option],[option],... pass one or more options to the linker (LD). Incase there are spaces seperating arguments from switches, always use commas to fill them. (eg. -Wl,-Ttext,0x8c010000) SH-ELF-AS mandatory -little generate code for little endian target. SH-ELF-LD mandatory -mshlelf generate little endian elf output. recommended -Tt [address] set start of TEXT section. For Dreamcast this would usually be 0x8c010000 -lg -lm -lc -lgcc link against standard libraries. optional --library-path=[path] set path to search for libraries. -L [path] set path to search for linker scripts. --script [filename] set script file to use for linking. note: for the ARM tools i just listed the differences to the above, all the generic (target independent) switches remain the same ofcoz. ARM-ELF-GCC mandatory -mcpu=arm7 recommended -O4 ARM-ELF-AS mandatory -marm7 ARM-ELF-LD mandatory -marmelf recommended -Tt [ADDR] set start of TEXT section. For the AICA this would usually be 0x00000000 13.08.2000 Groepaz/Hitmen 03.09.2000 added ARM related stuff