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From: Tom de Vries <tdevries@suse.de>
To: Simon Marchi <simon.marchi@efficios.com>, gdb-patches@sourceware.org
Subject: Re: [PATCH v2 28/42] Remove dwarf2_per_cu_data::objfile ()
Date: Wed, 27 May 2020 18:27:24 +0200	[thread overview]
Message-ID: <04473d43-9719-436b-648a-bdc8e5f55751@suse.de> (raw)
In-Reply-To: <20200512211250.6230-29-simon.marchi@efficios.com>

On 12-05-2020 23:12, Simon Marchi via Gdb-patches wrote:
> @@ -724,10 +721,13 @@ class dwarf_evaluate_loc_desc : public dwarf_expr_context
>      caller_frame = get_prev_frame (frame);
>  
>      parameter = dwarf_expr_reg_to_entry_parameter (frame, kind, kind_u,
> -						   &caller_per_cu);
> +						   &caller_per_cu,
> +						   &caller_per_objfile);
>      data_src = deref_size == -1 ? parameter->value : parameter->data_value;
>      size = deref_size == -1 ? parameter->value_size : parameter->data_value_size;
>  
> +    gdb_assert (this->per_objfile == caller_per_objfile);
> +

Hi,

I'm running into this assert here:
...
(gdb) PASS: gdb.base/catch-load.exp: plain load: catch load
continue^M
Continuing.^M
^M
Catchpoint 3^M
  Inferior loaded
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/catch-load/catch-load-so.so^M
dl_open_worker (/data/gdb_versions/devel/src/gdb/dwarf2/loc.c:729:
internal-error: virtual void
dwarf_evaluate_loc_desc::push_dwarf_reg_entry_value(call_site_parameter_kind,
call_site_parameter_u, int): Assertion `this->per_objfile ==
caller_per_objfile' failed.^M
A problem internal to GDB has been detected,^M
further debugging may prove unreliable.^M
Quit this debugging session? (y or n) FAIL: gdb.base/catch-load.exp:
plain load: continue (GDB internal error)
...

Minimal reproducer:
...
$ gdb -batch outputs/gdb.base/catch-load/catch-load \
    -ex start \
    -ex "catch load" \
    -ex continue
...

Actual values at assert:
...
729         gdb_assert (this->per_objfile == caller_per_objfile);
(gdb) p this->per_objfile
$1 = (dwarf2_per_objfile *) 0x1b2f940
(gdb) p caller_per_objfile
$2 = (dwarf2_per_objfile *) 0x1e53da0
(gdb) p *caller_per_objfile
$3 = {objfile = 0x1e53b60, per_bfd = 0x1f0d880, die_type_hash =
std::unique_ptr<htab> = {get() = 0x2054790},
  line_header_hash = std::unique_ptr<htab> = {get() = 0x0},
  m_symtabs = std::vector of length 1605, capacity 1605 = {0x0,
0x1e3f3a0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0...}, m_type_units = std::unordered_map with 0 elements,
  m_type_map = std::unordered_map with 0 elements, m_dwarf2_cus =
std::unordered_map with 0 elements}
(gdb) p *this->per_objfile
$4 = {objfile = 0x1a6a010, per_bfd = 0x1b4a230, die_type_hash =
std::unique_ptr<htab> = {get() = 0x1c8a570},
  line_header_hash = std::unique_ptr<htab> = {get() = 0x0}, m_symtabs =
std::vector of length 83, capacity 83 = {
    0x1b3c090, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x200dcb0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x210e350, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    0x0, 0x0, 0x0}, m_type_units = std::unordered_map with 0 elements,
  m_type_map = std::unordered_map with 0 elements, m_dwarf2_cus =
std::unordered_map with 0 elements}
...

Backtrace:
...
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff4f60b01 in __GI_abort () at abort.c:79
#2  0x000000000099247e in dump_core () at
/data/gdb_versions/devel/src/gdb/utils.c:204
#3  0x0000000000992990 in internal_vproblem(internal_problem *, const
char *, int, const char *, typedef __va_list_tag __va_list_tag *)
(problem=0x11ea140 <internal_error_problem>,
    file=0xba6060 "/data/gdb_versions/devel/src/gdb/dwarf2/loc.c",
line=729,
    fmt=0xba60c8 "%s: Assertion `%s' failed.", ap=0x7fffffffc128) at
/data/gdb_versions/devel/src/gdb/utils.c:414
#4  0x0000000000992a58 in internal_verror (file=0xba6060
"/data/gdb_versions/devel/src/gdb/dwarf2/loc.c",
    line=729, fmt=0xba60c8 "%s: Assertion `%s' failed.", ap=0x7fffffffc128)
    at /data/gdb_versions/devel/src/gdb/utils.c:439
#5  0x0000000000b083ff in internal_error (file=0xba6060
"/data/gdb_versions/devel/src/gdb/dwarf2/loc.c",
    line=729, fmt=0xba60c8 "%s: Assertion `%s' failed.") at
/data/gdb_versions/devel/src/gdbsupport/errors.cc:55
#6  0x00000000005bfb30 in
dwarf_evaluate_loc_desc::push_dwarf_reg_entry_value (this=0x7fffffffc550,
    kind=CALL_SITE_PARAMETER_DWARF_REG, kind_u=..., deref_size=-1)
    at /data/gdb_versions/devel/src/gdb/dwarf2/loc.c:729
#7  0x000000000058aa15 in dwarf_expr_context::execute_stack_op
(this=0x7fffffffc550,
    op_ptr=0x7ffff00425b3 "\237\245\016", op_end=0x7ffff00425b4 "\245\016")
    at /data/gdb_versions/devel/src/gdb/dwarf2/expr.c:1292
#8  0x00000000005886b6 in dwarf_expr_context::eval (this=0x7fffffffc550,
    addr=0x7ffff00425b0 "\363\001U\237\245\016", len=4) at
/data/gdb_versions/devel/src/gdb/dwarf2/expr.c:303
#9  0x00000000005ba36c in dwarf2_evaluate_loc_desc_full (type=0x1c890c0,
frame=0x2006570,
    data=0x7ffff00425b0 "\363\001U\237\245\016", size=4,
per_cu=0x1b80fb0, per_objfile=0x1b2f940,
    subobj_type=0x1c890c0, subobj_byte_offset=0) at
/data/gdb_versions/devel/src/gdb/dwarf2/loc.c:2230
#10 0x00000000005baa55 in dwarf2_evaluate_loc_desc (type=0x1c890c0,
frame=0x2006570,
    data=0x7ffff00425b0 "\363\001U\237\245\016", size=4,
per_cu=0x1b80fb0, per_objfile=0x1b2f940)
--Type <RET> for more, q to quit, c to continue without paging--
    at /data/gdb_versions/devel/src/gdb/dwarf2/loc.c:2414
#11 0x00000000005befe4 in loclist_read_variable (symbol=0x20f7460,
frame=0x2006570)
    at /data/gdb_versions/devel/src/gdb/dwarf2/loc.c:4474
#12 0x000000000065001b in default_read_var_value (var=0x20f7460,
var_block=0x0, frame=0x2006570)
    at /data/gdb_versions/devel/src/gdb/findvar.c:610
#13 0x0000000000650b57 in read_var_value (var=0x20f7460, var_block=0x0,
frame=0x2006570)
    at /data/gdb_versions/devel/src/gdb/findvar.c:815
#14 0x00000000008a7051 in read_frame_arg (fp_opts=..., sym=0x20f7460,
frame=0x2006570, argp=0x7fffffffc970,
    entryargp=0x7fffffffc990) at
/data/gdb_versions/devel/src/gdb/stack.c:542
#15 0x00000000008a7c28 in print_frame_args (fp_opts=..., func=0x20f73e0,
frame=0x2006570, num=-1,
    stream=0x1ab1f20) at /data/gdb_versions/devel/src/gdb/stack.c:884
#16 0x00000000008a8e3d in print_frame (fp_opts=..., frame=0x2006570,
print_level=0, print_what=SRC_AND_LOC,
    print_args=1, sal=...) at /data/gdb_versions/devel/src/gdb/stack.c:1388
#17 0x00000000008a84f5 in print_frame_info (fp_opts=...,
frame=0x2006570, print_level=0, print_what=SRC_AND_LOC,
    print_args=1, set_current_sal=1) at
/data/gdb_versions/devel/src/gdb/stack.c:1113
#18 0x00000000008a6882 in print_stack_frame (frame=0x2006570,
print_level=0, print_what=SRC_AND_LOC,
    set_current_sal=1) at /data/gdb_versions/devel/src/gdb/stack.c:366
#19 0x00000000006eed37 in print_stop_location (ws=0x7fffffffcec0)
    at /data/gdb_versions/devel/src/gdb/infrun.c:8352
#20 0x00000000006eed95 in print_stop_event (uiout=0x1ab3380, displays=true)
    at /data/gdb_versions/devel/src/gdb/infrun.c:8368
#21 0x0000000000948783 in tui_on_normal_stop (bs=0x2054b90, print_frame=1)
    at /data/gdb_versions/devel/src/gdb/tui/tui-interp.c:98
#22 0x0000000000448abf in std::_Function_handler<void (bpstats*, int),
void (*)(bpstats*, int)>::_M_invoke(std::_Any_data const&, bpstats*&&,
int&&) (__functor=..., __args#0=@0x7fffffffcfd0: 0x2054b90,
--Type <RET> for more, q to quit, c to continue without paging--
    __args#1=@0x7fffffffcfcc: 1) at
/usr/include/c++/7/bits/std_function.h:316
#23 0x00000000006f3ce2 in std::function<void (bpstats*,
int)>::operator()(bpstats*, int) const (this=0x133ae70,
    __args#0=0x2054b90, __args#1=1) at
/usr/include/c++/7/bits/std_function.h:706
#24 0x00000000006f2ffc in gdb::observers::observable<bpstats*,
int>::notify (
    this=0x1211260 <gdb::observers::normal_stop>, args#0=0x2054b90,
args#1=1)
    at /data/gdb_versions/devel/src/gdb/../gdbsupport/observable.h:106
#25 0x00000000006ef530 in normal_stop () at
/data/gdb_versions/devel/src/gdb/infrun.c:8646
#26 0x00000000006e53e9 in fetch_inferior_event (client_data=0x0)
    at /data/gdb_versions/devel/src/gdb/infrun.c:4065
#27 0x00000000006caa9d in inferior_event_handler
(event_type=INF_REG_EVENT, client_data=0x0)
    at /data/gdb_versions/devel/src/gdb/inf-loop.c:43
#28 0x0000000000724581 in handle_target_event (error=0, client_data=0x0)
    at /data/gdb_versions/devel/src/gdb/linux-nat.c:4235
#29 0x0000000000b09018 in handle_file_event (file_ptr=0x1afb810,
ready_mask=1)
    at /data/gdb_versions/devel/src/gdbsupport/event-loop.cc:548
#30 0x0000000000b095a0 in gdb_wait_for_event (block=0)
    at /data/gdb_versions/devel/src/gdbsupport/event-loop.cc:673
#31 0x0000000000b08533 in gdb_do_one_event () at
/data/gdb_versions/devel/src/gdbsupport/event-loop.cc:190
#32 0x0000000000920c72 in wait_sync_command_done () at
/data/gdb_versions/devel/src/gdb/top.c:526
#33 0x0000000000920cea in maybe_wait_sync_command_done (was_sync=0) at
/data/gdb_versions/devel/src/gdb/top.c:543
#34 0x0000000000921179 in execute_command (p=0x7fffffffe117 "", from_tty=0)
    at /data/gdb_versions/devel/src/gdb/top.c:657
#35 0x000000000074a197 in catch_command_errors (command=0x920d03
<execute_command(char const*, int)>,
    arg=0x7fffffffe10f "continue", from_tty=0) at
/data/gdb_versions/devel/src/gdb/main.c:457
#36 0x000000000074b57f in captured_main_1 (context=0x7fffffffda00)
--Type <RET> for more, q to quit, c to continue without paging--
    at /data/gdb_versions/devel/src/gdb/main.c:1219
#37 0x000000000074b774 in captured_main (data=0x7fffffffda00) at
/data/gdb_versions/devel/src/gdb/main.c:1244
#38 0x000000000074b7df in gdb_main (args=0x7fffffffda00) at
/data/gdb_versions/devel/src/gdb/main.c:1269
#39 0x000000000041515e in main (argc=14, argv=0x7fffffffdb08) at
/data/gdb_versions/devel/src/gdb/gdb.c:32
...

Thanks,
- Tom


  reply	other threads:[~2020-05-27 16:27 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 21:08 [PATCH v2 00/42] Share DWARF partial symtabs between objfiles Simon Marchi
2020-05-12 21:08 ` [PATCH v2 01/42] Introduce dwarf2_per_objfile::obstack Simon Marchi
2020-05-12 21:08 ` [PATCH v2 02/42] Add "objfile" parameter to two partial_symtab methods Simon Marchi
2020-05-12 21:08 ` [PATCH v2 03/42] Add dwarf2_per_cu_data::index Simon Marchi
2020-05-12 21:08 ` [PATCH v2 04/42] Add dwarf2_per_objfile member to DWARF batons Simon Marchi
2020-05-12 21:08 ` [PATCH v2 05/42] Split dwarf2_per_objfile into dwarf2_per_objfile and dwarf2_per_bfd Simon Marchi
2020-05-12 21:08 ` [PATCH v2 06/42] Remove symtab links from dwarf2_psymtab and dwarf2_per_cu_quick_data Simon Marchi
2020-05-12 21:08 ` [PATCH v2 07/42] Move die_type_hash to dwarf2_per_objfile Simon Marchi
2020-05-12 21:08 ` [PATCH v2 08/42] Add dwarf2_per_objfile field to dwarf2_cu Simon Marchi
2020-05-12 21:08 ` [PATCH v2 09/42] Remove reference to dwarf2_per_cu_data::dwarf2_per_objfile in dw2_do_instantiate_symtab Simon Marchi
2020-05-12 21:11 ` [PATCH v2 10/42] Remove dwarf2_cu->per_cu->dwarf2_per_objfile references Simon Marchi
2020-05-12 21:11 ` [PATCH v2 11/42] Add dwarf2_per_bfd field to dwarf2_per_cu_data Simon Marchi
2020-05-12 21:11 ` [PATCH v2 12/42] Make dwarf2_get_dwz_file take a dwarf2_per_bfd Simon Marchi
2020-05-12 21:11 ` [PATCH v2 13/42] Use bfd_get_filename instead of objfile_name in lookup_dwo_unit Simon Marchi
2020-05-12 21:11 ` [PATCH v2 14/42] Add dwarf2_per_objfile parameter to cutu_reader's constructors Simon Marchi
2020-05-12 21:11 ` [PATCH v2 15/42] Make queue_and_load_dwo_tu receive a dwarf2_cu Simon Marchi
2020-05-22 20:45   ` Tom Tromey
2020-05-25 19:10     ` Simon Marchi
2020-05-12 21:11 ` [PATCH v2 16/42] Remove dwarf2_per_cu_data::dwarf2_per_objfile reference in cutu_reader::keep Simon Marchi
2020-05-12 21:11 ` [PATCH v2 17/42] Add dwarf2_per_objfile parameter to create_partial_symtab Simon Marchi
2020-05-12 21:11 ` [PATCH v2 18/42] Add dwarf2_per_objfile parameter to recursively_compute_inclusions Simon Marchi
2020-05-12 21:11 ` [PATCH v2 19/42] Add dwarf2_per_objfile parameter to process_full_{comp, type}_unit Simon Marchi
2020-05-12 21:12 ` [PATCH v2 20/42] Pass dwarf2_cu objects to dwo-related functions, instead of dwarf2_per_cu_data Simon Marchi
2020-05-12 21:12 ` [PATCH v2 21/42] Remove reference to dwarf2_per_cu_data::dwarf2_per_objfile in queue_and_load_all_dwo_tus Simon Marchi
2020-05-12 21:12 ` [PATCH v2 22/42] Move int type methods out of dwarf2_per_cu_data Simon Marchi
2020-05-12 21:12 ` [PATCH v2 23/42] Add dwarf2_per_objfile to dwarf_expr_context and dwarf2_frame_cache Simon Marchi
2020-05-22 21:04   ` Tom Tromey
2020-05-25 19:50     ` Simon Marchi
2020-05-28  1:44       ` Simon Marchi
2020-05-12 21:12 ` [PATCH v2 24/42] Remove dwarf2_per_cu_data::text_offset Simon Marchi
2020-05-12 21:12 ` [PATCH v2 25/42] Add dwarf2_per_objfile parameter to dwarf2_read_addr_index Simon Marchi
2020-05-12 21:12 ` [PATCH v2 26/42] Add dwarf2_per_objfile parameter to allocate_piece_closure Simon Marchi
2020-05-12 21:12 ` [PATCH v2 27/42] Add dwarf2_per_objfile parameters to dwarf2_fetch_* functions Simon Marchi
2020-05-12 21:12 ` [PATCH v2 28/42] Remove dwarf2_per_cu_data::objfile () Simon Marchi
2020-05-27 16:27   ` Tom de Vries [this message]
2020-05-27 16:52     ` Tom de Vries
2020-05-27 20:03     ` Simon Marchi
2020-05-27 21:08       ` Tom de Vries
2020-05-27 21:55         ` Simon Marchi
2020-05-27 22:16           ` Simon Marchi
2020-05-28  2:00             ` Simon Marchi
2020-05-28 13:05               ` Tom de Vries
2020-05-28 15:33                 ` Simon Marchi
2020-05-28 16:24                   ` Christian Biesinger
2020-05-28 16:52                     ` Simon Marchi
2020-05-28 19:49                       ` Simon Marchi
2020-05-12 21:12 ` [PATCH v2 29/42] Add dwarf2_per_objfile parameter to free_one_cached_comp_unit Simon Marchi
2020-05-12 21:17 ` [PATCH v2 30/42] Add dwarf2_per_objfile parameter to get_die_type_at_offset Simon Marchi
2020-05-12 21:17 ` [PATCH v2 31/42] Remove leftover references to dwarf2_per_cu_data::dwarf2_per_objfile Simon Marchi
2020-05-12 21:17 ` [PATCH v2 32/42] Remove dwarf2_per_cu_data::dwarf2_per_objfile Simon Marchi
2020-05-12 21:17 ` [PATCH v2 33/42] Split type_unit_group Simon Marchi
2020-05-13  9:54   ` Tom de Vries
2020-05-13 15:06     ` Simon Marchi
2020-05-12 21:17 ` [PATCH v2 34/42] Move signatured_type::type to unshareable object Simon Marchi
2020-05-12 21:17 ` [PATCH v2 35/42] Pass dwarf2_per_bfd instead of dwarf2_per_objfile to some index-related functions Simon Marchi
2020-05-12 21:17 ` [PATCH v2 36/42] Pass dwarf2_cu to process_full_{comp,type}_unit Simon Marchi
2020-05-12 21:17 ` [PATCH v2 37/42] Make load_cu return the loaded dwarf2_cu Simon Marchi
2020-05-12 21:17 ` [PATCH v2 38/42] Add comp_unit_head to dwarf2_per_cu_data Simon Marchi
2020-05-12 21:17 ` [PATCH v2 39/42] Pass existing_cu object to cutu_reader Simon Marchi
2020-05-22 20:57   ` Tom Tromey
2020-05-25 19:10     ` Simon Marchi
2020-05-12 21:18 ` [PATCH v2 40/42] Replace dwarf2_per_cu_data::cu backlink with per-objfile map Simon Marchi
2020-05-12 21:18 ` [PATCH v2 41/42] Make mapped_debug_names independent of objfile Simon Marchi
2020-05-22 21:01   ` Tom Tromey
2020-05-25 19:53     ` Simon Marchi
2020-05-12 21:18 ` [PATCH v2 42/42] Share DWARF partial symtabs Simon Marchi
2020-05-13 10:17 ` [PATCH v2 00/42] Share DWARF partial symtabs between objfiles Tom de Vries
2020-05-13 15:46   ` Simon Marchi
2020-05-22 21:02     ` Tom Tromey
2020-05-25 19:53       ` Simon Marchi
2020-05-13 14:52 ` Simon Marchi
2020-05-22 21:07 ` Tom Tromey
2020-05-23 12:24   ` Pedro Alves
2020-05-25 19:56     ` Simon Marchi
2020-05-26 11:17       ` Pedro Alves
2020-05-26 15:35         ` Simon Marchi
2020-05-26 21:34           ` Simon Marchi
2020-05-27  5:08             ` Simon Marchi
2020-05-27 14:53               ` Simon Marchi
2020-05-27 15:51                 ` Simon Marchi
2020-05-29 10:23                   ` Tom de Vries
2020-05-29 12:55                     ` Tom de Vries
2020-05-31  4:16                     ` Simon Marchi
2020-05-31 14:22                       ` Tom de Vries
2020-06-02 21:27                         ` Simon Marchi
2020-06-04 17:55                           ` Tom de Vries
2020-06-04 18:04                             ` Simon Marchi
2020-06-10  3:43                               ` Simon Marchi
2020-06-12  3:25                                 ` Tom Tromey
2020-05-27 14:50 ` [PATCH v2 41.5/42] Move line_header_hash to dwarf2_per_objfile Simon Marchi
2020-05-27 15:07   ` Tom Tromey
2020-05-27 15:10     ` Simon Marchi

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