????? ???????????? wrote: > Why does $ROOT/.../map.default link to map.below4G for AMD64 and > map.above4G for SPARC64? > Both are 64bit platforms and using a 64bit address which does not fit > into a 32bit data type would be better for finding bugs. > Or not? > > Olga
I believe that mapfile is intended to demonstrate how to write a mapping description for the link-editor's default behavior on those platforms. The two platforms are different in that way, and I guess that it must be due to their respective ABIs. Here is the comment from a soon to be integrated update to that file that is a bit more clear: 24 # Linker mapfile that shows how programs are loaded by default. 25 # The linker does not use this file automatically, so one must use the -M 26 # option to cc or ld: 27 # 28 # cc -M /usr/lib/ld/map.default myprogram.c You could certainly make your own debugging mapfile to put the text segment elsewhere if you thought that might help debug things. - Ali
