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* [Bug testsuite/30538] New: [gdb/testsuite, aarch64] FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11
@ 2023-06-12 7:22 vries at gcc dot gnu.org
2023-06-12 10:59 ` [Bug testsuite/30538] " cvs-commit at gcc dot gnu.org
2023-06-12 11:07 ` vries at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: vries at gcc dot gnu.org @ 2023-06-12 7:22 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=30538
Bug ID: 30538
Summary: [gdb/testsuite, aarch64] FAIL:
gdb.python/py-rbreak.exp: check number of returned
breakpoints is 11
Product: gdb
Version: 13.1
Status: NEW
Severity: normal
Priority: P2
Component: testsuite
Assignee: unassigned at sourceware dot org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
With a gdb 13.1 based package on SLE-15 aarch64, I run into:
...
(gdb) PASS: gdb.python/py-rbreak.exp: nosharedlibrary
py sl = gdb.rbreak("^[^_]",minsyms=False)^M
Breakpoint 2 at 0x4004ac: file ../sysdeps/aarch64/crti.S, line 63.^M
Breakpoint 3 at 0x4005cc: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak-func2.c,
line \
21.^M
Breakpoint 4 at 0x4005d4: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak-func2.c,
line \
27.^M
Breakpoint 5 at 0x4005dc: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak-func2.c,
line \
33.^M
Breakpoint 6 at 0x400564: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
21.^M
Breakpoint 7 at 0x40056c: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
27.^M
Breakpoint 8 at 0x400574: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
33.^M
Breakpoint 9 at 0x40057c: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
39.^M
Breakpoint 10 at 0x400584: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
45.^M
Breakpoint 11 at 0x40058c: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
51.^M
Breakpoint 12 at 0x4005a4: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
63.^M
Breakpoint 13 at 0x400594: file
/home/abuild/rpmbuild/BUILD/gdb-13.2/gdb/testsuite/gdb.python/py-rbreak.c, line
57.^M
(gdb) py print(len(sl))^M
12^M
(gdb) FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is
11
...
This is the unexpected one:
...
Breakpoint 2 at 0x4004ac: file ../sysdeps/aarch64/crti.S, line 63.^M
...
Looking in the glibc sources, it's function "call_weak_fn".
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* [Bug testsuite/30538] [gdb/testsuite, aarch64] FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11
2023-06-12 7:22 [Bug testsuite/30538] New: [gdb/testsuite, aarch64] FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11 vries at gcc dot gnu.org
@ 2023-06-12 10:59 ` cvs-commit at gcc dot gnu.org
2023-06-12 11:07 ` vries at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-06-12 10:59 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=30538
--- Comment #1 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=9f82823f8972fbd4bba0230b27828d87f0548cbc
commit 9f82823f8972fbd4bba0230b27828d87f0548cbc
Author: Tom de Vries <tdevries@suse.de>
Date: Mon Jun 12 13:00:09 2023 +0200
[gdb/testsuite] Relax breakpoint count check in gdb.python/py-rbreak.exp
With a gdb 13.2 based package on SLE-15 aarch64, I run into:
...
(gdb) PASS: gdb.python/py-rbreak.exp: nosharedlibrary
py sl = gdb.rbreak("^[^_]",minsyms=False)^M
Breakpoint 2 at 0x4004ac: file ../sysdeps/aarch64/crti.S, line 63.^M
...
(gdb) py print(len(sl))^M
12^M
(gdb) FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints
is 11
...
The FAIL is due to:
- the glibc object crti.o containing debug information for function
call_weak_fn, and
- the test-case not expecting this.
The debug information is there due to compiling glibc using a binutils
which
contains commit 591cc9fbbfd ("gas/Dwarf: record functions").
I've run into a similar issue before, see commit 3fbbcf473a5
("[gdb/testsuite]
Fix regexp in py-rbreak.exp").
The fix I applied there was to use a regexp "^[^_]" to filter out
__libc_csu_fini and __libc_csu_init, but that doesn't work for
call_weak_fn.
Fix this by:
- reverting the regexp to "", and
- rewriting the check to require at least 11 functions, rather than a
precise
match.
Tested on x86_64-linux.
PR testsuite/30538
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30538
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* [Bug testsuite/30538] [gdb/testsuite, aarch64] FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11
2023-06-12 7:22 [Bug testsuite/30538] New: [gdb/testsuite, aarch64] FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11 vries at gcc dot gnu.org
2023-06-12 10:59 ` [Bug testsuite/30538] " cvs-commit at gcc dot gnu.org
@ 2023-06-12 11:07 ` vries at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: vries at gcc dot gnu.org @ 2023-06-12 11:07 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=30538
Tom de Vries <vries at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.1
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
Fixed.
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2023-06-12 7:22 [Bug testsuite/30538] New: [gdb/testsuite, aarch64] FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11 vries at gcc dot gnu.org
2023-06-12 10:59 ` [Bug testsuite/30538] " cvs-commit at gcc dot gnu.org
2023-06-12 11:07 ` vries at gcc dot gnu.org
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