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35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
From: Jory A. Pratt <anarchy@gentoo.org>
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CFLAGS must contain -fPIC when checking the linker
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diff --git a/build/autoconf/compiler-opts.m4 b/build/autoconf/compiler-opts.m4
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--- a/build/autoconf/compiler-opts.m4
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+++ b/build/autoconf/compiler-opts.m4
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@@ -205,23 +205,26 @@ MOZ_PIE=
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MOZ_ARG_ENABLE_BOOL(pie,
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[ --enable-pie Enable Position Independent Executables],
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MOZ_PIE=1,
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MOZ_PIE= )
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if test "$GNU_CC$CLANG_CC" -a -n "$MOZ_PIE"; then
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AC_MSG_CHECKING([for PIE support])
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+ _SAVE_CFLAGS=$CFLAGS
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+ CFLAGS="$CFLAGS -fPIC"
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_SAVE_LDFLAGS=$LDFLAGS
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LDFLAGS="$LDFLAGS $DSO_PIC_CFLAGS -pie"
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AC_TRY_LINK(,,AC_MSG_RESULT([yes])
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[MOZ_PROGRAM_LDFLAGS="$MOZ_PROGRAM_LDFLAGS -pie"],
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AC_MSG_RESULT([no])
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AC_MSG_ERROR([--enable-pie requires PIE support from the linker.]))
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LDFLAGS=$_SAVE_LDFLAGS
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+ CFLAGS=$_SAVE_CFLAGS
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fi
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AC_SUBST(MOZ_PROGRAM_LDFLAGS)
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dnl ASan assumes no symbols are being interposed, and when that happens,
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dnl it's not happy with it. Unconveniently, since Firefox is exporting
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dnl libffi symbols and Gtk+3 pulls system libffi via libwayland-client,
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dnl system libffi interposes libffi symbols that ASan assumes are in
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