https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79061
--- Comment #26 from Maxim Ostapenko <m.ostapenko at samsung dot com> ---
(In reply to Maxim Ostapenko from comment #24)
> (In reply to Tobias Burnus from comment #23)
> > (In reply to Tobias Burnus from comment #22)
> > > As I recently did some incremental builds, I will retry it after a full
> > > bootstrap.
> >
> > Didn't make a difference - I still see the ASAN run-time fail. I wonder
> > what's different between our systems.
>
> Perhaps you use strict_init_order=true option (e.g.
> ASAN_OPTIONS=check_initialization_order=true:report_globals=3:
> strict_init_order=true)?
> max@max:~/test-lto/test-2/test$
> ASAN_OPTIONS=check_initialization_order=true:report_globals=3:
> strict_init_order=true ./a.out
> #0 0x41d885 in __asan_register_globals
> /home/max/workspace/downloads/gcc/libsanitizer/asan/asan_globals.cc:326
> #1 0x58a3b6 in _GLOBAL__sub_I_00099_1_main.4497
> (/home/max/test-lto/test-2/test/a.out+0x58a3b6)
> #2 0x58a40c in __libc_csu_init
> (/home/max/test-lto/test-2/test/a.out+0x58a40c)
> #3 0x7fb4c6568ed4 in __libc_start_main
> (/lib/x86_64-linux-gnu/libc.so.6+0x21ed4)
> #4 0x405f38 (/home/max/test-lto/test-2/test/a.out+0x405f38)
>
> === ID 1015021569; 0x0000007c7f60 0x0000007c8120
> ==26120==Added Global[0x0000007c7f60]: beg=0x0000005a5960 size=1/64
> name=piecewise_construct module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120== location (0x0000007c7f20):
> name=/home/max/install/master/include/c++/7.0.1/bits/stl_pair.
> h[0x0000005a5aa0], 79 35
> ==26120==Added Global[0x0000007c7fa0]: beg=0x00000142cf20 size=1/64
> name=__ioinit module=/tmp/ccS8KlYh.ltrans0.o dyn_init=1
> ==26120== location (0x0000007c7f30):
> name=/home/max/install/master/include/c++/7.0.1/iostream[0x0000005a5ae0], 74
> 25
> ==26120==Added Global[0x0000007c7fe0]: beg=0x00000142cfa0 size=16/64
> name=xptimer_clean module=xptimer.cc dyn_init=1
> ==26120== location (0x0000007c7f40): name=xptiming.cc[0x0000005a59e0], 7 9
> ==26120==Added Global[0x0000007c8020]: beg=0x00000142cf60 size=16/64
> name=xptimer_sweep module=xptimer.cc dyn_init=1
> ==26120== location (0x0000007c7f50): name=xptiming.cc[0x0000005a59e0], 6 9
> ==26120==Added Global[0x0000007c8060]: beg=0x0000005a5a60 size=14/64
> name=*.LC3 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Added Global[0x0000007c80a0]: beg=0x0000005a59e0 size=12/64
> name=*.LC1 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Added Global[0x0000007c80e0]: beg=0x0000005a59a0 size=11/64
> name=*.LC0 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Added Global[0x0000007c8120]: beg=0x0000005a5a20 size=14/64
> name=*.LC2 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> DynInitPoison module: xptimer.cc
> DynInitPoison module: xptiming.cc
> =================================================================
> ==26120==Search Global[0x0000007c8120]: beg=0x0000005a5a20 size=14/64
> name=*.LC2 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Search Global[0x0000007c80e0]: beg=0x0000005a59a0 size=11/64
> name=*.LC0 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Search Global[0x0000007c80a0]: beg=0x0000005a59e0 size=12/64
> name=*.LC1 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Search Global[0x0000007c8060]: beg=0x0000005a5a60 size=14/64
> name=*.LC3 module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120==Search Global[0x0000007c8020]: beg=0x00000142cf60 size=16/64
> name=xptimer_sweep module=xptimer.cc dyn_init=1
> ==26120== location (0x0000007c7f50): name=xptiming.cc[0x0000005a59e0], 6 9
> ==26120==Search Global[0x0000007c7fe0]: beg=0x00000142cfa0 size=16/64
> name=xptimer_clean module=xptimer.cc dyn_init=1
> ==26120== location (0x0000007c7f40): name=xptiming.cc[0x0000005a59e0], 7 9
> ==26120==Search Global[0x0000007c7fa0]: beg=0x00000142cf20 size=1/64
> name=__ioinit module=/tmp/ccS8KlYh.ltrans0.o dyn_init=1
> ==26120== location (0x0000007c7f30):
> name=/home/max/install/master/include/c++/7.0.1/iostream[0x0000005a5ae0], 74
> 25
> ==26120==Search Global[0x0000007c7f60]: beg=0x0000005a5960 size=1/64
> name=piecewise_construct module=/tmp/ccS8KlYh.ltrans0.o dyn_init=0
> ==26120== location (0x0000007c7f20):
> name=/home/max/install/master/include/c++/7.0.1/bits/stl_pair.
> h[0x0000005a5aa0], 79 35
> ==26120==ERROR: AddressSanitizer: initialization-order-fiasco on address
> 0x00000142cf68 at pc 0x00000058a25c bp 0x7ffc44459250 sp 0x7ffc44459230
> WRITE of size 1 at 0x00000142cf68 thread T0
> #0 0x58a25b in __base_ctor /home/max/test-lto/test-2/test/xptimer.cc:12
> #1 0x58a349 in __static_initialization_and_destruction_0
> /home/max/test-lto/test-2/test/xptiming.cc:6
> #2 0x58a377 in _GLOBAL__sub_I__ZN6xp_aux13xptimer_sweepE
> /home/max/test-lto/test-2/test/xptiming.cc:9
> #3 0x58a40c in __libc_csu_init
> (/home/max/test-lto/test-2/test/a.out+0x58a40c)
> #4 0x7fb4c6568ed4 in __libc_start_main
> (/lib/x86_64-linux-gnu/libc.so.6+0x21ed4)
> #5 0x405f38 (/home/max/test-lto/test-2/test/a.out+0x405f38)
>
> 0x00000142cf68 is located 8 bytes inside of global variable 'xptimer_sweep'
> defined in 'xptiming.cc:6:9' (0x142cf60) of size 16
> registered at:
> #0 0x41d62c in __asan_register_globals
> /home/max/workspace/downloads/gcc/libsanitizer/asan/asan_globals.cc:317
> #1 0x58a3b6 in _GLOBAL__sub_I_00099_1_main.4497
> (/home/max/test-lto/test-2/test/a.out+0x58a3b6)
> #2 0x58a40c in __libc_csu_init
> (/home/max/test-lto/test-2/test/a.out+0x58a40c)
>
> 0x00000142cf68 is located 56 bytes to the left of global variable
> 'xptimer_clean' defined in 'xptiming.cc:7:9' (0x142cfa0) of size 16
> registered at:
> #0 0x41d62c in __asan_register_globals
> /home/max/workspace/downloads/gcc/libsanitizer/asan/asan_globals.cc:317
> #1 0x58a3b6 in _GLOBAL__sub_I_00099_1_main.4497
> (/home/max/test-lto/test-2/test/a.out+0x58a3b6)
> #2 0x58a40c in __libc_csu_init
> (/home/max/test-lto/test-2/test/a.out+0x58a40c)
>
> SUMMARY: AddressSanitizer: initialization-order-fiasco
> /home/max/test-lto/test-2/test/xptimer.cc:12 in __base_ctor
> Shadow bytes around the buggy address:
> 0x00008027d990: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027d9a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027d9b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027d9c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027d9d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> =>0x00008027d9e0: 00 00 00 00 f6 f6 f6 f6 f6 f6 f6 f6 f6[f6]f6 f6
> 0x00008027d9f0: f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 00 00 00 00
> 0x00008027da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027da10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027da20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 0x00008027da30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Shadow byte legend (one shadow byte represents 8 application bytes):
> Addressable: 00
> Partially addressable: 01 02 03 04 05 06 07
> Heap left redzone: fa
> Freed heap region: fd
> Stack left redzone: f1
> Stack mid redzone: f2
> Stack right redzone: f3
> Stack after return: f5
> Stack use after scope: f8
> Global redzone: f9
> Global init order: f6
> Poisoned by user: f7
> Container overflow: fc
> Array cookie: ac
> Intra object redzone: bb
> ASan internal: fe
> Left alloca redzone: ca
> Right alloca redzone: cb
> ==26120==ABORTING
==26120==Added Global[0x0000007c7fe0]: beg=0x00000142cfa0 size=16/64
name=xptimer_clean module=xptimer.cc dyn_init=1
This looks wrong, xptimer_clean is defined in another module (xptiming.cc).
The TRANSLATION_UNIT_DECL for xptimer_clean would be namespace xp_aux and its
TRANSLATION_UNIT_DECL would be xptimer.cc:
Breakpoint 1, asan_add_global (decl=0x7ffff7ff7c60, type=0x7ffff62202a0,
v=0x7ffff62485a0) at /home/max/workspace/downloads/gcc/gcc/asan.c:2397
2397 {
(gdb) call debug_tree(decl)
<var_decl 0x7ffff7ff7bd0 xptimer_clean
type <record_type 0x7ffff621bb28 XPTimer asm_written needs-constructing TI
size <integer_cst 0x7ffff63d6c30 constant 128>
unit size <integer_cst 0x7ffff63d6c48 constant 16>
align 64 symtab -165594784 alias set 7 canonical type 0x7ffff621bb28
fields <field_decl 0x7ffff621c850 _name type <pointer_type
0x7ffff6209888>
private unsigned nonlocal DI file xptimer.h line 10 col 9
size <integer_cst 0x7ffff63d6be8 constant 64>
unit size <integer_cst 0x7ffff63d6c00 constant 8>
align 64 offset_align 128
offset <integer_cst 0x7ffff63d6c18 constant 0>
bit offset <integer_cst 0x7ffff63d6c60 constant 0> context
<record_type 0x7ffff621bb28 XPTimer> chain <field_decl 0x7ffff621c7b8 _active>>
context <namespace_decl 0x7ffff621c720 xp_aux>
pointer_to_this <pointer_type 0x7ffff621bd20> chain <type_decl
0x7ffff621c8e8 XPTimer>>
addressable asm_written used static TI file xptiming.cc line 7 col 9 size
<integer_cst 0x7ffff63d6c30 128> unit size <integer_cst 0x7ffff63d6c48 16>
align 256 context <namespace_decl 0x7ffff621c720 xp_aux>
(mem/c:TI (symbol_ref:DI ("_ZN6xp_aux13xptimer_cleanE") [flags 0x2]
<var_decl 0x7ffff7ff7bd0 xptimer_clean>) [7 xptimer_clean+0 S16 A256])>
(gdb) call debug_tree(DECL_CONTEXT(decl))
<namespace_decl 0x7ffff621c720 xp_aux
type <void_type 0x7ffff63eaf18 void asm_written VOID
align 8 symtab 0 alias set -1 structural equality
pointer_to_this <pointer_type 0x7ffff63f10a8>>
public VOID file xptimer.h line 3 col 11
align 1 context <translation_unit_decl 0x7ffff63e11e0 xptimer.cc>>
(gdb) p DECL_CONTEXT(DECL_CONTEXT(decl))
$3 = (tree) 0x7ffff63e11e0
(gdb) call debug_tree(DECL_CONTEXT(DECL_CONTEXT(decl)))
<translation_unit_decl 0x7ffff63e11e0 xptimer.cc VOID file (null) line 0 col 0
align 1>
