Kurt Jaeger
29 lines
841 B
Makefile
29 lines
841 B
Makefile
# PIE Support
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#
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# Produce a Position-Independent Executable (PIE) instead of a "normal"
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# fixed-address ELF.
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# A PIE is an executable whose code sections are compiled and linked so that,
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# at runtime, they can be loaded at any base address in memory.
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#
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# Because it can be loaded at unpredictable addresses, PIE enables full Address
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# Space Layout Randomization (ASLR) for your main executable-making certain
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# classes of memory-corruption exploits much harder.
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.if !defined(_PIE_MK_INCLUDED)
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_PIE_MK_INCLUDED= yes
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PIE_Include_MAINTAINER= portmgr@FreeBSD.org
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. if !defined(PIE_UNSAFE)
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. if defined(_INCLUDE_USES_CMAKE_MK)
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CMAKE_ARGS+= -DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=true
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. else
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PIE_CFLAGS?= -fPIE -fPIC
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CFLAGS+= ${PIE_CFLAGS}
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CXXFLAGS+= ${PIE_CFLAGS}
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LDFLAGS+= -pie
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STATIC_PIE_ARGS+= -static-pie
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. endif
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. endif
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.endif
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