Date: Mon, 30 Jan 2017 18:18:18 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-toolchain@FreeBSD.org Subject: [Bug 216587] cc should accept -pie argument Message-ID: <bug-216587-29464-kZCI9W6rgE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-216587-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-216587-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D216587 Dimitry Andric <dim@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |Not A Bug Status|In Progress |Closed --- Comment #3 from Dimitry Andric <dim@FreeBSD.org> --- Removing some stuff from the command line to clarify: > c++ -c [...] -pie -fPIE [...] -o chatline.o src/chatlog/chatline.cpp So this is a compilation of a .cpp file to .o, and this case the -pie option does not apply, as it is meant for the link phase. Examples of how to avoid "unused argument" warnings: $ c++ -fPIE -pie helloworld.cpp -o helloworld $ file helloworld helloworld: ELF 32-bit LSB shared object, Intel 80386, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD 12.0 (1200020), FreeBSD-style, not stripped $ c++ -fPIE -c helloworld.cpp $ c++ -pie helloworld.o -o helloworld $ file helloworld helloworld: ELF 32-bit LSB shared object, Intel 80386, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD 12.0 (1200020), FreeBSD-style, not stripped Alternatively, if it is difficult to get upstream software to untangle CFLA= GS, CXXFLAGS and LDFLAGS, add -Qunused-arguments. --=20 You are receiving this mail because: You are the assignee for the bug.=
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