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9f82823f89
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 591cc9fbbf ("gas/Dwarf: record functions").
I've run into a similar issue before, see commit 3fbbcf473a ("[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
67 lines
2.6 KiB
Plaintext
67 lines
2.6 KiB
Plaintext
# Copyright (C) 2017-2023 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the GDB testsuite. It tests the mechanism
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# exposing values to Python.
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load_lib gdb-python.exp
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require allow_python_tests
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standard_testfile py-rbreak.c py-rbreak-func2.c
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if {[prepare_for_testing "failed to prepare" ${testfile} [list $srcfile $srcfile2]] } {
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return 1
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}
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if {![runto_main]} {
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return 0
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}
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gdb_test_no_output "nosharedlibrary"
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gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"\",minsyms=False)" \
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"get all function breakpoints" 0
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set min_breakpoints 11
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gdb_test_multiple "py print(len(sl))" \
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"check number of returned breakpoints is at least $min_breakpoints" {
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-re -wrap "($decimal)" {
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set n $expect_out(1,string)
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gdb_assert { $n >= $min_breakpoints } $gdb_test_name
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}
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}
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gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"main\.\*\",minsyms=False)" \
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"get main function breakpoint" 0
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gdb_test "py print(len(sl))" "1" \
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"check number of returned breakpoints is 1"
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gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"func\.\*\",minsyms=False,throttle=10)" \
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"get functions matching func.*" 0
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gdb_test "py print(len(sl))" "9" \
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"check number of returned breakpoints is 9"
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gdb_test "py gdb.rbreak(\"func\.\*\",minsyms=False,throttle=5)" \
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"Number of breakpoints exceeds throttled maximum.*" \
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"check throttle errors on too many breakpoints"
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gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"func1\",minsyms=True)" \
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"including minimal symbols, get functions matching func.*" 0
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gdb_test "py print(len(sl))" "2" \
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"check number of returned breakpoints is 2"
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gdb_py_test_silent_cmd "python sym = gdb.lookup_symbol(\"efunc1\")" \
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"find a symbol in objfile" 1
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gdb_py_test_silent_cmd "python symtab = sym\[0\].symtab" \
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"get backing symbol table" 1
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gdb_py_test_silent_cmd "py sl = gdb.rbreak(\"func\.\*\",minsyms=False,throttle=10,symtabs=\[symtab\])" \
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"get functions matching func.* in one symtab only" 0
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gdb_test "py print(len(sl))" "3" \
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"check number of returned breakpoints is 3"
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