Commit the vtable verification feature.

Commit the vtable verification feature.  This feature is designed to
detect, at run time, if/when the vtable pointer in a C++ object has
been corrupted, before allowing virtual calls through that pointer. 
If pointer corruption is detected, execution of the program is halted.

libstdc++-v3 ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * fragment.am: Add XTEMPLATE_FLAGS.
        * configure.ac: Add definitions for --enable-vtable-verify.
        * acinclude.m4:  Add --enable-vtable-verify and
        --disable-vtable-verify; define --enable-vtable-verify; define
        VTV_CXXFLAGS, VTV_PCH_CXXFLAGS and VTV_CXXLINKFLAGS.
        * config/abi/pre/gnu.ver: Export symbols for vtable verification.
        * libsupc++/Makefile.am: Define vtv_sources and add it to
        libsupc___la_SOURCES and libsupc__convenience_la_SOURCES.
        * libsupc++/vtv_stubs.cc: New file.
        * include/Makefile.am: Add VTV_PCH_CXXFLAGS to PCHFLAGS.
        * src/Makefile.am: Add VTV_CXXFLAGS to AM_CXXFLAGS; add
        VTV_CXXLINKFLAGS to CXXLINK.
        * src/c++98/Makefile.am: Comment out XTEMPLATE_FLAGS; add VTV_CXXFLAGS
        to AM_CXXFLAGS; add VTV_CXXXLINKFLAGS to CXXLINK.
        * src/C++11/Makefile.am: Ditto.
        * doc/xml/manual/configure.xml: Add entry for --enable-vtable-verify.
        * scripts/testsuite_flags.in: Add cxxvtvflags to Usage; cause
        cxxvtvflags to use VTV_CXXFLAGS and VTV_CXXLINKFLAGS.
        * testsuite/lib/libstdc++.exp: Add cxxvtvflags; add code to locate
        libvtv if --enable-vtable-verify was used; set cxxvtvflags; add
        cxxvtvflags to cxx_final.
        * testsuite/18_support/bad_exception/23591_thread-1.c: Add
        -fvtable-verify=none to compiler flags.
        * testsuite/17_intro/freestanding.cc: Add -fvtable-verify=none
        to compiler flags.
        * configure: Regenerated.
        * Makefile.in: Regenerated.
        * python/Makefile.in: Regenerated.
        * include/Makefile.in: Regenerated.
        * libsupc++/Makefile.in: Regenerated.
        * config.h.in: Regenerated.
        * po/Makefile.in: Regenerated.
        * src/Makefile.in: Regenerated.
        * src/c++98/Makefile.in: Regenerated.
        * src/c++11/Makefile.in: Regenerated.
        * doc/Makefile.in: Regenerated.
        * testsuite/Makefile.in: Regenerated.

top level ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * configure.ac: Add target-libvtv to target_libraries; disable libvtv
        on non-linux systems; add target-libvtv to noconfigdirs; add
        libsupc++/.libs to C++ library search paths.
        * configure: Regenerated.
        * Makefile.def: Add libvtv to target_modules; make libvtv depend on
        libstdc++ and libgcc.
        * Makefile.in: Regenerated.

include/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * vtv-change-permission.h: New file.

contrib/ChangeLog:
2013-08-06  Caroline Tice4  <cmtice@google.com>

        * gcc_update: Add libvtv files.

libgcc/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        config.host (extra_parts): Add vtv_start.o, vtv_end.o
        vtv_start_preinit.o and vtv_end_preinit.o.
        configure.ac: Add code to check/set enable_vtable_verify.
        Makefile.in: Add rules to build vtv_*.o, if enable_vtable_verify is
        true.
        vtv_start_preinit.c: New file.
        vtv_end_preinit.c: New file.
        vtv_start.c: New file.
        vtv_end.c: New file.
        configure: Regenerated.

gcc/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * gcc.c (VTABLE_VERIFICATION_SPEC): New definition.
        (LINK_COMMAND_SPEC): Add VTABLE_VERIFICATION_SPEC.
        * tree-pass.h: Add pass_vtable_verify.
        * varasm.c (assemble_variable): Add code to properly set the comdat
        section and name for the .vtable_map_vars section.
        (assemble_vtyv_preinit_initializer): New function.
        (default_sectin_type_flags):  Make sure .vtable_map_vars section has
        LINK_ONCE flag.
        * output.h: Add function decl for assemble_vtv_preinit_initializer.
        * vtable-verify.c: New file.
        * vtable-verify.h: New file.
        * flag-types.h (enum vtv_priority): Defintions for flag_vtable_verify
        initialiation levels.
        * timevar.def (TV_VTABLE_VERIFICATION): New definition.
        * passes.def: Insert pass_vtable_verify.
        * aclocal.m4: Reorder includes.
        * doc/invoke.texi: Add documentation for the flags -fvtable-verify=,
	-fvtv-debug and -fvtv-counts.
        * config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Add vtv_start*.o,
as appropriate, if -fvtable-verify=... is used.
        (GNU_USER_TARGET_ENDFILE_SPEC): Add vtv_end*.o as appropriate, if
        -fvtable-verify=... is used.
        * Makefile.in (OBJS):  Add vtable-verify.o to list.
        (vtable-verify.o): Add new build rule.
        (GTFILES): Add vtable-verify.c to list.
        * common.opt (fvtable-verify=): New flag.
        (vtv_priority): Values for fvtable-verify= flag.
        (fvtv-counts): New flag.
(fvtv-debug): New flag.
        * tree.h (save_vtable_map_decl): New extern function decl.


gcc/cp/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        * Make-lang.in (*CXX_AND_OBJCXX_OBJS):  Add vtable-class-hierarchy.o to
        list.
        (vtable-class-hierarchy.o): Add build rule.
        * cp-tree.h (vtv_start_verification_constructor_init_function): New
        extern function decl.
        (vtv_finish_verification_constructor_init_function): New extern
        function decl.
        (build_vtbl_address): New extern function decl.
        (get_mangled_vtable_map_var_name): New extern function decl.
        (vtv_compute_class_hierarchy_transitive_closure): New extern function
        decl.
        (vtv_generate_init_routine): New extern function decl.
        (vtv_save_class_info): New extern function decl.
        (vtv_recover_class_info): New extern function decl.
        (vtv_build_vtable_verify_fndecl): New extern function decl.
        * class.c (finish_struct_1): Add call to vtv_save_class_info if
        flag_vtable_verify is true.
        * config-lang.in: Add vtable-class-hierarchy.c to gtfiles list.
        * vtable-class-hierarchy.c: New file.
        * mangle.c (get_mangled_vtable_map_var_name):  New function.
        * decl2.c (start_objects): Update function comment.
        (cp_write_global_declarations): Call vtv_recover_class_info,
        vtv_compute_class_hierarchy_transitive_closure and
        vtv_build_vtable_verify_fndecl, before calling
        finalize_compilation_unit, and call vtv_generate_init_rount after, IFF
        flag_vtable_verify is true.
        (vtv_start_verification_constructor_init_function): New function.
        (vtv_finish_verification_constructor_init_function): New function.
        * init.c (build_vtbl_address): Remove static qualifier from function.

libvtv/ChangeLog:
2013-08-06  Caroline Tice  <cmtice@google.com>

        Initial check-in of new vtable verification feature.
        * configure.ac : New file.
        * acinclude.m4 : New file.
        * Makefile.am : New file.
        * aclocal.m4 : New file.
        * configure.tgt : New file.
        * configure: New file (generated).
        * Makefile.in: New file (generated).
        * vtv_set.h : New file.
        * vtv_utils.cc : New file.
        * vtv_utils.h : New file.
        * vtv_malloc.cc : New file.
        * vtv_rts.cc : New file.
        * vtv_malloc.h : New file.
        * vtv_rts.h : New file.
        * vtv_fail.cc : New file.
        * vtv_fail.h : New file.
        * vtv_map.h : New file.
        * scripts/run-testsuite.sh : New file.
        * scripts/sum-vtv-counts.c : New file.
        * testsuite/parts-test-main.h : New file.
        * testusite/dataentry.cc : New file.
        * testsuite/temp_deriv.cc : New file.
        * testsuite/register_pair.cc : New file.
        * testsuite/virtual_inheritance.cc : New file.
        * testsuite/field-test.cc : New file.
        * testsuite/nested_vcall_test.cc : New file.
        * testsuite/template-list-iostream.cc : New file.
        * testsuite/register_pair_inserts.cc : New file.
        * testsuite/register_pair_inserts_mt.cc : New file.
        * testsuite/event.list : New file.
        * testsuite/parts-test-extra-parts-views.cc : New file.
        * testsuite/parts-test-extra-parts-views.h : New file.
        * testsuite/environment-fail-32.s : New file.
        * testsuite/parts-test-extra-parts.h : New file.
        * testsuite/temp_deriv2.cc : New file.
        * testsuite/dlopen_mt.cc : New file.
        * testsuite/event.h : New file.
        * testsuite/template-list.cc : New file.
        * testsuite/replace-fail.cc : New file.
        * testsuite/Makefile.am : New file.
        * testsuite/Makefile.in: New file (generated).
        * testsuite/mempool_negative.c : New file.
        * testsuite/parts-test-main.cc : New file.
        * testsuite/event-private.cc : New file.
        * testsuite/thunk.cc : New file.
        * testsuite/event-defintiions.cc : New file.
        * testsuite/event-private.h : New file.
        * testsuite/parts-test.list : New file.
        * testusite/register_pair_mt.cc : New file.
        * testsuite/povray-derived.cc : New file.
        * testsuite/event-main.cc : New file.
        * testsuite/environment.cc : New file.
        * testsuite/template-list2.cc : New file.
        * testsuite/thunk_vtable_map_attack.cc : New file.
        * testsuite/parts-test-extra-parts.cc : New file.
        * testsuite/environment-fail-64.s : New file.
        * testsuite/dlopen.cc : New file.
        * testsuite/so.cc : New file.
        * testsuite/temp_deriv3.cc : New file.
        * testsuite/const_vtable.cc : New file.
        * testsuite/mempool_positive.c : New file.
        * testsuite/dup_name.cc : New file.

From-SVN: r201555

1 files changed, 425 insertions, 0 deletions

diff --git a/libvtv/testsuite/environment-fail-64.s b/libvtv/testsuite/environment-fail-64.s
new file mode 100644
index 0000000..d75db24
--- /dev/null
+++ b/libvtv/testsuite/environment-fail-64.s
@@ -0,0 +1,425 @@
+	.file	"environment.cc"
+	.section	.text._ZN15EnvironmentImpl6GetVarEPKcPc,"axG",@progbits,_ZN15EnvironmentImpl6GetVarEPKcPc,comdat
+	.align 2
+	.weak	_ZN15EnvironmentImpl6GetVarEPKcPc
+	.type	_ZN15EnvironmentImpl6GetVarEPKcPc, @function
+_ZN15EnvironmentImpl6GetVarEPKcPc:
+.LFB0:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	movq	%rdi, -8(%rbp)
+	movq	%rsi, -16(%rbp)
+	movq	%rdx, -24(%rbp)
+	movl	$1, %eax
+	popq	%rbp
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE0:
+	.size	_ZN15EnvironmentImpl6GetVarEPKcPc, .-_ZN15EnvironmentImpl6GetVarEPKcPc
+	.text
+	.align 2
+	.globl	_ZN11EnvironmentD2Ev
+	.type	_ZN11EnvironmentD2Ev, @function
+_ZN11EnvironmentD2Ev:
+.LFB2:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	subq	$16, %rsp
+	movq	%rdi, -8(%rbp)
+	movq	-8(%rbp), %rax
+	movq	_ZTV11Environment@GOTPCREL(%rip), %rdx
+	leaq	16(%rdx), %rdx
+	movq	%rdx, (%rax)
+	movl	$0, %eax
+	testl	%eax, %eax
+	je	.L3
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZdlPv@PLT
+.L3:
+	leave
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE2:
+	.size	_ZN11EnvironmentD2Ev, .-_ZN11EnvironmentD2Ev
+	.globl	_ZN11EnvironmentD1Ev
+	.set	_ZN11EnvironmentD1Ev,_ZN11EnvironmentD2Ev
+	.align 2
+	.globl	_ZN11EnvironmentD0Ev
+	.type	_ZN11EnvironmentD0Ev, @function
+_ZN11EnvironmentD0Ev:
+.LFB4:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	subq	$16, %rsp
+	movq	%rdi, -8(%rbp)
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZN11EnvironmentD1Ev@PLT
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZdlPv@PLT
+	leave
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE4:
+	.size	_ZN11EnvironmentD0Ev, .-_ZN11EnvironmentD0Ev
+	.section	.text._ZN11EnvironmentC2Ev,"axG",@progbits,_ZN11EnvironmentC5Ev,comdat
+	.align 2
+	.weak	_ZN11EnvironmentC2Ev
+	.type	_ZN11EnvironmentC2Ev, @function
+_ZN11EnvironmentC2Ev:
+.LFB8:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	movq	%rdi, -8(%rbp)
+	movq	-8(%rbp), %rax
+	movq	_ZTV11Environment@GOTPCREL(%rip), %rdx
+	leaq	16(%rdx), %rdx
+	movq	%rdx, (%rax)
+	popq	%rbp
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE8:
+	.size	_ZN11EnvironmentC2Ev, .-_ZN11EnvironmentC2Ev
+	.weak	_ZN11EnvironmentC1Ev
+	.set	_ZN11EnvironmentC1Ev,_ZN11EnvironmentC2Ev
+	.section	.text._ZN15EnvironmentImplC2Ev,"axG",@progbits,_ZN15EnvironmentImplC5Ev,comdat
+	.align 2
+	.weak	_ZN15EnvironmentImplC2Ev
+	.type	_ZN15EnvironmentImplC2Ev, @function
+_ZN15EnvironmentImplC2Ev:
+.LFB10:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	subq	$16, %rsp
+	movq	%rdi, -8(%rbp)
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZN11EnvironmentC2Ev@PLT
+	movq	-8(%rbp), %rax
+	movq	_ZTV15EnvironmentImpl@GOTPCREL(%rip), %rdx
+	leaq	16(%rdx), %rdx
+	movq	%rdx, (%rax)
+	leave
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE10:
+	.size	_ZN15EnvironmentImplC2Ev, .-_ZN15EnvironmentImplC2Ev
+	.weak	_ZN15EnvironmentImplC1Ev
+	.set	_ZN15EnvironmentImplC1Ev,_ZN15EnvironmentImplC2Ev
+	.text
+	.align 2
+	.globl	_ZN11Environment6CreateEv
+	.type	_ZN11Environment6CreateEv, @function
+_ZN11Environment6CreateEv:
+.LFB5:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	pushq	%rbx
+	subq	$8, %rsp
+	.cfi_offset 3, -24
+	movl	$8, %edi
+	call	_Znwm@PLT
+	movq	%rax, %rbx
+	movq	$0, (%rbx)
+	movq	%rbx, %rdi
+	call	_ZN15EnvironmentImplC1Ev@PLT
+	movq	%rbx, %rax
+	addq	$8, %rsp
+	popq	%rbx
+	popq	%rbp
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE5:
+	.size	_ZN11Environment6CreateEv, .-_ZN11Environment6CreateEv
+	.section	.rodata
+.LC0:
+	.string	"%p\n"
+	.text
+	.globl	main
+	.type	main, @function
+main:
+.LFB12:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	subq	$16, %rsp
+	movq	$0, -8(%rbp)
+	call	_ZN11Environment6CreateEv@PLT
+	movq	%rax, -16(%rbp)
+	movq	-16(%rbp), %rax
+	movq	(%rax), %rax
+	movq	%rax, %rsi
+	leaq	_ZN4_VTVI11EnvironmentE12__vtable_mapE(%rip), %rdi
+	call	_Z24__VLTVerifyVtablePointerPPvPKv@PLT
+	addq	$16, %rax
+	movq	(%rax), %rax
+	movq	-8(%rbp), %rdx
+	movq	-16(%rbp), %rcx
+	movl	$0, %esi
+	movq	%rcx, %rdi
+	call	*%rax
+	movq	-16(%rbp), %rax
+	movq	%rax, %rsi
+	leaq	.LC0(%rip), %rdi
+	movl	$0, %eax
+	call	printf@PLT
+	movl	$0, %eax
+	leave
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE12:
+	.size	main, .-main
+	.weak	_ZTV11Environment
+	.section	.data.rel.ro._ZTV11Environment,"awG",@progbits,_ZTV11Environment,comdat
+	.align 32
+	.type	_ZTV11Environment, @object
+	.size	_ZTV11Environment, 40
+_ZTV11Environment:
+	.quad	0
+	.quad	_ZTI11Environment
+	.quad	_ZN11EnvironmentD1Ev
+	.quad	_ZN11EnvironmentD0Ev
+	.quad	__cxa_pure_virtual
+	.weak	_ZTV15EnvironmentImpl
+	.section	.data.rel.ro._ZTV15EnvironmentImpl,"awG",@progbits,_ZTV15EnvironmentImpl,comdat
+	.align 32
+	.type	_ZTV15EnvironmentImpl, @object
+	.size	_ZTV15EnvironmentImpl, 40
+_ZTV15EnvironmentImpl:
+	.quad	0
+	.quad	_ZTI15EnvironmentImpl
+	.quad	_ZN15EnvironmentImplD1Ev
+	.quad	_ZN15EnvironmentImplD0Ev
+	.quad	_ZN15EnvironmentImpl6GetVarEPKcPc
+	.section	.text._ZN15EnvironmentImplD2Ev,"axG",@progbits,_ZN15EnvironmentImplD5Ev,comdat
+	.align 2
+	.weak	_ZN15EnvironmentImplD2Ev
+	.type	_ZN15EnvironmentImplD2Ev, @function
+_ZN15EnvironmentImplD2Ev:
+.LFB14:
+	.cfi_startproc
+	.cfi_personality 0x9b,DW.ref.__gxx_personality_v0
+	.cfi_lsda 0x1b,.LLSDA14
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	subq	$16, %rsp
+	movq	%rdi, -8(%rbp)
+	movq	-8(%rbp), %rax
+	movq	_ZTV15EnvironmentImpl@GOTPCREL(%rip), %rdx
+	leaq	16(%rdx), %rdx
+	movq	%rdx, (%rax)
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+.LEHB0:
+	call	_ZN11EnvironmentD2Ev@PLT
+.LEHE0:
+	movl	$0, %eax
+	testl	%eax, %eax
+	je	.L19
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZdlPv@PLT
+	jmp	.L19
+.L18:
+	movq	%rax, %rdi
+.LEHB1:
+	call	_Unwind_Resume@PLT
+.LEHE1:
+.L19:
+	leave
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE14:
+	.globl	__gxx_personality_v0
+	.section	.gcc_except_table._ZN15EnvironmentImplD2Ev,"aG",@progbits,_ZN15EnvironmentImplD5Ev,comdat
+.LLSDA14:
+	.byte	0xff
+	.byte	0xff
+	.byte	0x1
+	.uleb128 .LLSDACSE14-.LLSDACSB14
+.LLSDACSB14:
+	.uleb128 .LEHB0-.LFB14
+	.uleb128 .LEHE0-.LEHB0
+	.uleb128 .L18-.LFB14
+	.uleb128 0
+	.uleb128 .LEHB1-.LFB14
+	.uleb128 .LEHE1-.LEHB1
+	.uleb128 0
+	.uleb128 0
+.LLSDACSE14:
+	.section	.text._ZN15EnvironmentImplD2Ev,"axG",@progbits,_ZN15EnvironmentImplD5Ev,comdat
+	.size	_ZN15EnvironmentImplD2Ev, .-_ZN15EnvironmentImplD2Ev
+	.weak	_ZN15EnvironmentImplD1Ev
+	.set	_ZN15EnvironmentImplD1Ev,_ZN15EnvironmentImplD2Ev
+	.section	.text._ZN15EnvironmentImplD0Ev,"axG",@progbits,_ZN15EnvironmentImplD0Ev,comdat
+	.align 2
+	.weak	_ZN15EnvironmentImplD0Ev
+	.type	_ZN15EnvironmentImplD0Ev, @function
+_ZN15EnvironmentImplD0Ev:
+.LFB16:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	subq	$16, %rsp
+	movq	%rdi, -8(%rbp)
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZN15EnvironmentImplD1Ev@PLT
+	movq	-8(%rbp), %rax
+	movq	%rax, %rdi
+	call	_ZdlPv@PLT
+	leave
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE16:
+	.size	_ZN15EnvironmentImplD0Ev, .-_ZN15EnvironmentImplD0Ev
+	.weak	_ZTS15EnvironmentImpl
+	.section	.rodata._ZTS15EnvironmentImpl,"aG",@progbits,_ZTS15EnvironmentImpl,comdat
+	.align 16
+	.type	_ZTS15EnvironmentImpl, @object
+	.size	_ZTS15EnvironmentImpl, 18
+_ZTS15EnvironmentImpl:
+	.string	"15EnvironmentImpl"
+	.weak	_ZTI15EnvironmentImpl
+	.section	.data.rel.ro._ZTI15EnvironmentImpl,"awG",@progbits,_ZTI15EnvironmentImpl,comdat
+	.align 16
+	.type	_ZTI15EnvironmentImpl, @object
+	.size	_ZTI15EnvironmentImpl, 24
+_ZTI15EnvironmentImpl:
+	.quad	_ZTVN10__cxxabiv120__si_class_type_infoE+16
+	.quad	_ZTS15EnvironmentImpl
+	.quad	_ZTI11Environment
+	.weak	_ZTI11Environment
+	.section	.data.rel.ro._ZTI11Environment,"awG",@progbits,_ZTI11Environment,comdat
+	.align 16
+	.type	_ZTI11Environment, @object
+	.size	_ZTI11Environment, 16
+_ZTI11Environment:
+	.quad	_ZTVN10__cxxabiv117__class_type_infoE+16
+	.quad	_ZTS11Environment
+	.weak	_ZTS11Environment
+	.section	.rodata._ZTS11Environment,"aG",@progbits,_ZTS11Environment,comdat
+	.type	_ZTS11Environment, @object
+	.size	_ZTS11Environment, 14
+_ZTS11Environment:
+	.string	"11Environment"
+	.hidden	_ZN4_VTVI11EnvironmentE12__vtable_mapE
+	.weak	_ZN4_VTVI11EnvironmentE12__vtable_mapE
+	.section	.vtable_map_vars,"awG",@progbits,_ZN4_VTVI11EnvironmentE12__vtable_mapE,comdat
+	.align 8
+	.type	_ZN4_VTVI11EnvironmentE12__vtable_mapE, @gnu_unique_object
+	.size	_ZN4_VTVI11EnvironmentE12__vtable_mapE, 8
+_ZN4_VTVI11EnvironmentE12__vtable_mapE:
+	.zero	8
+	.hidden	_ZN4_VTVI15EnvironmentImplE12__vtable_mapE
+	.weak	_ZN4_VTVI15EnvironmentImplE12__vtable_mapE
+	.section	.vtable_map_vars,"awG",@progbits,_ZN4_VTVI15EnvironmentImplE12__vtable_mapE,comdat
+	.align 8
+	.type	_ZN4_VTVI15EnvironmentImplE12__vtable_mapE, @gnu_unique_object
+	.size	_ZN4_VTVI15EnvironmentImplE12__vtable_mapE, 8
+_ZN4_VTVI15EnvironmentImplE12__vtable_mapE:
+	.zero	8
+	.section	.data.rel.ro,"aw",@progbits
+	.align 16
+	.type	__vptr_array_11Environment, @object
+	.size	__vptr_array_11Environment, 16
+__vptr_array_11Environment:
+	.quad	_ZTV11Environment+16
+	.quad	_ZTV15EnvironmentImpl+16
+	.section	.rodata
+	.align 8
+.LC1:
+	.string	"&"
+	.string	""
+	.string	""
+	.ascii	"\224\tl\022_ZN4_VTVI11EnvironmentE12__vtable_mapE"
+	.align 8
+.LC2:
+	.string	"*"
+	.string	""
+	.string	""
+	.ascii	"N\225\r\334_ZN4_VTVI15EnvironmentImplE12__vtable_mapE"
+	.text
+	.type	_GLOBAL__sub_I.00099_environment.cc, @function
+_GLOBAL__sub_I.00099_environment.cc:
+.LFB17:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	leaq	__vptr_array_11Environment(%rip), %r8
+	movl	$2, %ecx
+	movl	$2, %edx
+	leaq	.LC1(%rip), %rsi
+	leaq	_ZN4_VTVI11EnvironmentE12__vtable_mapE(%rip), %rdi
+	movq	_ZTV15EnvironmentImpl@GOTPCREL(%rip), %rax
+	leaq	16(%rax), %rcx
+	movl	$1, %edx
+	leaq	.LC2(%rip), %rsi
+	leaq	_ZN4_VTVI15EnvironmentImplE12__vtable_mapE(%rip), %rdi
+	call	_Z17__VLTRegisterPairPPvPKvmS2_@PLT
+	popq	%rbp
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE17:
+	.size	_GLOBAL__sub_I.00099_environment.cc, .-_GLOBAL__sub_I.00099_environment.cc
+	.section	.init_array.00099,"aw"
+	.align 8
+	.quad	_GLOBAL__sub_I.00099_environment.cc
+	.hidden	DW.ref.__gxx_personality_v0
+	.weak	DW.ref.__gxx_personality_v0
+	.section	.data.DW.ref.__gxx_personality_v0,"awG",@progbits,DW.ref.__gxx_personality_v0,comdat
+	.align 8
+	.type	DW.ref.__gxx_personality_v0, @object
+	.size	DW.ref.__gxx_personality_v0, 8
+DW.ref.__gxx_personality_v0:
+	.quad	__gxx_personality_v0
+	.ident	"GCC: (GNU) 4.9.0 20130616 (experimental)"
+	.section	.note.GNU-stack,"",@progbits