Ed Maste bcf99d2d99 Add WITH_PIE knob to build Position Independent Executables ... Building binaries as PIE allows the executable itself to be loaded at a random address when ASLR is enabled (not just its shared libraries). With this change PIE objects have a .pieo extension and INTERNALLIB libraries libXXX_pie.a. MK_PIE is disabled for some kerberos5 tools, Clang, and Subversion, as they explicitly reference .a libraries in their Makefiles. These can be addressed on an individual basis later. MK_PIE is also disabled for rtld-elf because it is already position-independent using bespoke Makefile rules. Currently only dynamically linked binaries will be built as PIE. Discussed with: dim Reviewed by: kib MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D18423		2019-02-15 22:22:38 +00:00
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Makefile	Add WITH_PIE knob to build Position Independent Executables	2019-02-15 22:22:38 +00:00
Makefile.depend	DIRDEPS_BUILD: Update dependencies.	2017-10-31 00:07:04 +00:00