[Bug 233707] www/firefox: fails to build with -fstack-protector-{strong,all} + -Wl,-z,nocopyreloc

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233707

Dimitry Andric <dim at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dim at FreeBSD.org,
                   |                            |emaste at freebsd.org

--- Comment #1 from Dimitry Andric <dim at FreeBSD.org> ---
Indeed.  Output from ld.lld 7.0.1 rc2:

$ ld.lld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both
--enable-new-dtags -o bug233707 /usr/lib/crt1.o /usr/lib/crti.o
/usr/lib/crtbegin.o -L/usr/lib -z nocopyreloc bug233707.o -lgcc --as-needed
-lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed
/usr/lib/crtend.o /usr/lib/crtn.o
ld.lld: error: unresolvable relocation R_X86_64_PC32 against symbol
'__stack_chk_guard'; recompile with -fPIC or remove '-z nocopyreloc'
>>> defined in /lib/libc.so.7
>>> referenced by bug233707.c
>>>               bug233707.o:(main)

Output from ld.bfd 2.17.50 (in base):

$ /usr/bin/ld.bfd --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1
--hash-style=both --enable-new-dtags -o bug233707 /usr/lib/crt1.o
/usr/lib/crti.o /usr/lib/crtbegin.o -L/usr/lib -z nocopyreloc bug233707.o -lgcc
--as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed
/usr/lib/crtend.o /usr/lib/crtn.o
<zilch>

Output from ld.bfd 2.30 (from ports):

$ ld.bfd --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both
--enable-new-dtags -o bug233707 /usr/lib/crt1.o /usr/lib/crti.o
/usr/lib/crtbegin.o -L/usr/lib -z nocopyreloc bug233707.o -lgcc --as-needed
-lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed
/usr/lib/crtend.o /usr/lib/crtn.o
ld.bfd: bug233707.o: relocation R_X86_64_PC32 against symbol
`__stack_chk_guard@@FBSD_1.0' can not be used when making a PDE object;
recompile with -fPIC
ld.bfd: final link failed: Bad value

It's interesting how ld.bfd is talking about a "PDE object" here.  I guess that
means a Position Dependent Executable...

Maybe a workaround is to compile firefox with -fPIE? :)

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