3 Commits

Author	SHA1	Message	Date
Andrew Kaster	c678b35043	LibELF: Use MAP_PRIVATE for file-backed mmaps in ELFDynamicLoader ... Clean up some unused code, clean up FIXMEs, and remove premature --dynamic-loader/-pie from LinkDemo (so it runs again on master)	2020-02-29 10:58:45 +01:00
Andrew Kaster	c3be3718cf	Demos: Compile LinkDemo as a PIE with interpreter /lib/lib-elf.so	2020-01-13 13:03:30 +01:00
Andrew Kaster	b6590b7f83	Demos: Add a dynamic linking demo to show off dlfcn methods ... The LinkDemo program calls dlopen/dlsym/dlclose to try and load a dyanmic library from /usr/lib. It read a global variable and calls a global function (extern "C" of course :) ). There a few hacks left in the LinkLib dynamic library, however. In order to get the linker to stop complaining, we have to use -nostartfiles -ffreestanding otherwise it will link crt0.o to our shared object, which is definitely not right as the _init function for a main program (that calls main) is not suitable for our lib	2020-01-01 17:48:41 +01:00