On Fri, Aug 16, 2019 at 06:43:44PM +0300, Jarkko Sakkinen wrote: > On Wed, Jul 17, 2019 at 03:37:03PM -0700, Xing, Cedric wrote: > > > +$(OUTPUT)/encl.bin: $(OUTPUT)/encl.elf $(OUTPUT)/sgxsign > > > + objcopy --remove-section=.got.plt -O binary $< $@ > > > > .got.plt section will never be present for statically linked binaries. > > You are right that it should not be there because the enclave does not > use any library calls. And if it did, we would want to assert that and > fail the compilation if it is the case. > > Assuming that .got.plt can never exist in a static binary, however, is > simply not true. A common example are library calls such as strncpy(). > The default handler selects the fastest implementation and substitutes > that to the GOT. > > The right way to fix this is to assert it in the linker script. In addition, objcopy should be replaced with $(OBJCOPY). /Jarkko
