* [Bug gdb/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug gdb/24438] " vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
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From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
Tom de Vries <vries at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|default |gdb
Version|unspecified |HEAD
Assignee|nobody at sourceware dot org |unassigned at sourceware dot org
Product|dwz |gdb
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* [Bug default/24438] New: new regressions with dwz -m
@ 2019-01-01 0:00 vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
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From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
Bug ID: 24438
Summary: new regressions with dwz -m
Product: dwz
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: default
Assignee: nobody at sourceware dot org
Reporter: vries at gcc dot gnu.org
CC: dwz at sourceware dot org
Target Milestone: ---
[ Filing new version of 2013's PR15028 - regressions with dwz -m]
Using "--target_board=cc-with-tweaks" and CC_WITH_TWEAKS_FLAGS='-m' I see these
regressions (compared to a CC_WITH_TWEAKS_FLAGS='-z' run):
...
< PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache
stats
---
> FAIL: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache stats
...
...
< PASS: gdb.base/jit-so.exp: test jit-reader-load filename completion
---
> FAIL: gdb.base/jit-so.exp: test jit-reader-load filename completion
...
...
< PASS: gdb.dwarf2/gdb-index.exp: index used
< PASS: gdb.dwarf2/gdb-index.exp: index used after symbol reloading
---
> FAIL: gdb.dwarf2/gdb-index.exp: index used
> FAIL: gdb.dwarf2/gdb-index.exp: index used after symbol reloading
....
Summary:
...
< # of expected passes 69818
< # of unexpected failures 50
< # of expected failures 199
---
> # of expected passes 69814
> # of unexpected failures 54
> # of expected failures 199
...
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* [Bug gdb/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
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2019-01-01 0:00 ` vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
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From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #6 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #3)
> (In reply to Tom de Vries from comment #0)
> > < PASS: gdb.dwarf2/gdb-index.exp: index used
> > ---
> > > FAIL: gdb.dwarf2/gdb-index.exp: index used
>
Not investigating this one for now, assuming it's a duplicate of PR24445.
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* [Bug default/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
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2019-01-01 0:00 ` vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug gdb/24438] " vries at gcc dot gnu.org
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From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #3 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> < PASS: gdb.dwarf2/gdb-index.exp: index used
> ---
> > FAIL: gdb.dwarf2/gdb-index.exp: index used
In the passing version, we have:
...
(gdb) mt print objfiles gdb-index^M
^M
Object file
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.dwarf2/gdb-index/gdb-index.with-index:
Objfile at 0x2ddeac0, bfd at 0x2894b30, 28 minsyms^M
^M
.gdb_index: version 8^M
^M
Symtabs:^M
/data/gdb_versions/devel/src/gdb/testsuite/gdb.dwarf2/main.c at 0x2de9c50, ^M
^M
(gdb) PASS: gdb.dwarf2/gdb-index.exp: index used
...
and in the failing version, we have:
...
(gdb) mt print objfiles gdb-index^M
^M
Object file
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.dwarf2/gdb-index/gdb-index.with-index:
Objfile at 0x1bf7030, bfd at 0x1708b30, 28 minsyms^M
^M
Psymtabs:^M
../sysdeps/x86_64/crtn.S at 0x1c6eca0, elf-init.c at 0x1c6ec30,
/data/gdb_versions/devel/src/gdb/testsuite/gdb.dwarf2/main.c at 0x1c6ebc0,
../sysdeps/x86_64/crti.S at 0x1c6eb50, init.c at 0x1c6eae0,
../sysdeps/x86_64/start.S at 0x1c6ea70, ^M
^M
Symtabs:^M
/data/gdb_versions/devel/src/gdb/testsuite/gdb.dwarf2/main.c at 0x1c6cb90, ^M
^M
(gdb) FAIL: gdb.dwarf2/gdb-index.exp: index used
...
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* [Bug gdb/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #5 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #2)
> (In reply to Tom de Vries from comment #0)
> > < PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache
> > stats
> > ---
> > > FAIL: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache stats
>
> In the passing case, we have:
> ...
> PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: no files were created
> show index-cache stats^M
> Cache hits (this session): 1^M
> Cache misses (this session): 0^M
> (gdb) PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: check
> index-cache stats
> ...
>
> and in the failing case we have:
> ...
> PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: no files were created
> show index-cache stats^M
> Cache hits (this session): 0^M
> Cache misses (this session): 1^M
> (gdb) FAIL: gdb.base/index-cache.exp: test_cache_enabled_hit: check
> index-cache stats
> ...
Filed spinoff PR24445 - "dwz multifile index not written to index cache"
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* [Bug default/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
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2019-01-01 0:00 ` cvs-commit at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> ...
> < PASS: gdb.base/jit-so.exp: test jit-reader-load filename completion
> ---
> > FAIL: gdb.base/jit-so.exp: test jit-reader-load filename completion
> ...
In the passing case, we have:
...
(gdb) PASS: gdb.base/jit-so.exp: one_jit_test-2: info function jit_function
complete jit-reader-load
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-solib.s^M
jit-reader-load
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-solib.so^M
(gdb) PASS: gdb.base/jit-so.exp: test jit-reader-load filename completion
...
And in the failing case we have:
...
(gdb) PASS: gdb.base/jit-so.exp: one_jit_test-2: info function jit_function
complete jit-reader-load
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-solib.s^M
jit-reader-load
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-solib.so^M
jit-reader-load
/data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-solib.so.alt^M
(gdb) FAIL: gdb.base/jit-so.exp: test jit-reader-load filename completion
...
The failure is caused by the fact that the test-case does not expect the .alt
file.
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* [Bug default/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` [Bug gdb/24438] " vries at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> < PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache
> stats
> ---
> > FAIL: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache stats
In the passing case, we have:
...
PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: no files were created
show index-cache stats^M
Cache hits (this session): 1^M
Cache misses (this session): 0^M
(gdb) PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache
stats
...
and in the failing case we have:
...
PASS: gdb.base/index-cache.exp: test_cache_enabled_hit: no files were created
show index-cache stats^M
Cache hits (this session): 0^M
Cache misses (this session): 1^M
(gdb) FAIL: gdb.base/index-cache.exp: test_cache_enabled_hit: check index-cache
stats
...
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* [Bug gdb/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
` (4 preceding siblings ...)
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
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8 siblings, 0 replies; 10+ messages in thread
From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #4 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #1)
> (In reply to Tom de Vries from comment #0)
> > ...
> > < PASS: gdb.base/jit-so.exp: test jit-reader-load filename completion
> > ---
> > > FAIL: gdb.base/jit-so.exp: test jit-reader-load filename completion
> > ...
>
> In the passing case, we have:
> ...
> (gdb) PASS: gdb.base/jit-so.exp: one_jit_test-2: info function jit_function
> complete jit-reader-load
> /data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-
> solib.s^M
> jit-reader-load
> /data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-
> solib.so^M
> (gdb) PASS: gdb.base/jit-so.exp: test jit-reader-load filename completion
> ...
>
> And in the failing case we have:
> ...
> (gdb) PASS: gdb.base/jit-so.exp: one_jit_test-2: info function jit_function
> complete jit-reader-load
> /data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-
> solib.s^M
> jit-reader-load
> /data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-
> solib.so^M
> jit-reader-load
> /data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/jit-so/jit-
> solib.so.alt^M
> (gdb) FAIL: gdb.base/jit-so.exp: test jit-reader-load filename completion
> ...
>
> The failure is caused by the fact that the test-case does not expect the
> .alt file.
Patch submitted: https://sourceware.org/ml/gdb-patches/2019-04/msg00199.html
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* [Bug gdb/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
` (5 preceding siblings ...)
2019-01-01 0:00 ` [Bug gdb/24438] " vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` cvs-commit at gcc dot gnu.org
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: vries at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
Tom de Vries <vries at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Tom de Vries <vries at gcc dot gnu.org> ---
With "[gdb/contrib] Remove superfluous .alt file after dwz invocation in
cc-with-tweaks.sh" committed, the only issue left is in this PR is the one for
which spinoff PR24445 - "dwz multifile index not written to index cache" was
filed.
So, marking this one resolved-fixed.
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* [Bug gdb/24438] new regressions with dwz -m
2019-01-01 0:00 [Bug default/24438] New: new regressions with dwz -m vries at gcc dot gnu.org
` (6 preceding siblings ...)
2019-01-01 0:00 ` vries at gcc dot gnu.org
@ 2019-01-01 0:00 ` cvs-commit at gcc dot gnu.org
2019-01-01 0:00 ` [Bug default/24438] " vries at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz
https://sourceware.org/bugzilla/show_bug.cgi?id=24438
--- Comment #7 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom de Vries <vries@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6892f60143f7809641dc1824e29dcc406a705df6
commit 6892f60143f7809641dc1824e29dcc406a705df6
Author: Tom de Vries <tdevries@suse.de>
Date: Tue Apr 23 15:35:21 2019 +0200
[gdb/contrib] Remove superfluous .alt file after dwz invocation in
cc-with-tweaks.sh
The -m option of cc-with-tweaks.sh sets want_multi to true, invoking dwz
like
this:
...
elif [ "$want_multi" = true ]; then
cp $output_file ${output_file}.alt
$DWZ -m ${output_file}.dwz "$output_file" ${output_file}.alt \
> /dev/null 2>&1
fi
...
The problem that is being solved here, is that we want to test dwz in
multifile mode, which requires more than one input file, while we only have
(at the scope of cc-with-tweaks.sh) one executable. We handle this by
copying
the executable and offering this as a second input (and using a copy has
the
additional benefit that it maximally enables dwz transformation).
However, after the dwz invocation, the copy is no longer used, and the
presence of the file actually causes a test regression:
...
FAIL: gdb.base/jit-so.exp: test jit-reader-load filename completion
...
Fix this by removing the superflous copy after dwz invocation.
Tested on x86_64-linux.
gdb/ChangeLog:
2019-04-23 Tom de Vries <tdevries@suse.de>
PR gdb/24438
* contrib/cc-with-tweaks.sh: Remove superfluous .alt file after dwz
invocation.
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