Put upx stub loader at high end of ELF output file on linux,

and allow for block-by-block specification of filter and parameters.
	linker.cpp linker.h mem.cpp mem.h p_elf.h
	p_lx_elf.cpp p_lx_elf.h
	p_lx_exc.cpp p_lx_exc.h
	p_lx_sh.cpp  p_lx_sh.h
	p_unix.cpp p_unix.h
	packer.cpp packer.h
	stub/fold_elf86.asm stub/fold_exec86.asm stub/fold_sh86.asm
	stub/l_lx_elf.c  stub/l_lx_elf86.asm  stub/l_lx_elf86.lds
	stub/l_lx_exec.c stub/l_lx_exec86.asm stub/l_lx_exec86.lds
	stub/l_lx_sh.c   stub/l_lx_sh86.asm   stub/l_lx_sh86.lds
	stub/linux.hh

committer: jreiser <jreiser> 981084316 +0000

src/mem.h

@@ -72,15 +72,6 @@ private:
     //static void operator delete[] (void *) {}
 };
 
-class MemBufferIO : public MemBuffer {
-public:
-    MemBufferIO(unsigned size=0);
-    ~MemBufferIO();
-
-    unsigned seek(unsigned offset, int whence);  // returns new position
-    unsigned write(void const *data, unsigned size);  // returns xfer count
-};
-
 #endif /* already included */