[tor-bugs] #21925 [Applications/Tor Browser]: Tor Browser based on ESR52 can't get built with ASan and FORTIFY_SOURCE

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#21925: Tor Browser based on ESR52 can't get built with ASan and FORTIFY_SOURCE
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     Reporter:  gk                        |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 Similarly to #17508 ASan seems to be unhappy with FORTIFY_SOURCE when
 using `.mozconfig-asan`:
 {{{
 In file included from /usr/include/features.h:356:0,
                  from /usr/include/limits.h:27,
                  from /home/debian/install/gcc/lib/gcc/x86_64-unknown-
 linux-gnu/5.4.0/include-fixed/limits.h:168,
                  from /home/debian/install/gcc/lib/gcc/x86_64-unknown-
 linux-gnu/5.4.0/include-fixed/syslimits.h:7,
                  from /home/debian/install/gcc/lib/gcc/x86_64-unknown-
 linux-gnu/5.4.0/include-fixed/limits.h:34,
                  from /home/debian/build/tor-browser/obj-x86_64-pc-linux-
 gnu/js/src/ctypes/libffi/include/ffi.h:76,
                  from /home/debian/build/tor-
 browser/js/src/ctypes/libffi/src/x86/ffi64.c:30:
 /home/debian/build/tor-browser/js/src/ctypes/libffi/src/x86/ffi64.c: In
 function 'ffi_call':
 /usr/include/x86_64-linux-gnu/bits/string3.h:49:1: error: inlining failed
 in call to always_inline 'memcpy': function attribute mismatch
  __NTH (memcpy (void *__restrict __dest, __const void *__restrict __src,
  ^
 /home/debian/build/tor-browser/js/src/ctypes/libffi/src/x86/ffi64.c:485:4:
 error: called from here
     memcpy (argp, avalue[i], size);
     ^
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21925>
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