forked from Imagelibrary/binutils-gdb
2bcfdb758b
On aarch64-linux, I run into: ... FAIL: gdb.base/annota1.exp: backtrace from shlibrary (timeout) ... due to the PAC marker showing up: ... ^Z^Zframe-address^M 0x000000000041025c [PAC]^M ^Z^Zframe-address-end^M ... In the docs the marker is documented as follows: ... When GDB is debugging the AArch64 architecture, and the program is using the v8.3-A feature Pointer Authentication (PAC), then whenever the link register $lr is pointing to an PAC function its value will be masked. When GDB prints a backtrace, any addresses that required unmasking will be postfixed with the marker [PAC]. When using the MI, this is printed as part of the addr_flags field. ... Update the test-case to allow the PAC marker. Likewise in a few other test-cases. While we're at it, rewrite the affected pattern pat_begin in annota1.exp into a more readable form. Likewise for the corresponding pat_end. Tested on aarch64-linux. Approved-By: Luis Machado <luis.machado@arm.com> PR testsuite/31202 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31202
65 lines
2.2 KiB
Plaintext
65 lines
2.2 KiB
Plaintext
# Copyright (C) 2004-2023 Free Software Foundation, Inc.
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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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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@gnu.org
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# This file verifies that GDB is able to compute a backtrace for a thread
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# being blocked on a call to pthread_cond_wait().
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standard_testfile
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
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return -1
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}
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clean_restart ${binfile}
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runto_main
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gdb_test "break break_me" \
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"Breakpoint 2 at .*: file .*${srcfile}, line .*" \
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"breakpoint on break_me"
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gdb_test "continue" \
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".*Breakpoint 2, break_me ().*" \
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"run to break_me"
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#
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# Backtrace all threads, find the one running noreturn, and
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# verify that we are able to get a sensible backtrace, including
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# the frame for the pthread_cond_wait() call.
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#
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# The string below will only match if the functions named
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# occur in a single thread's backtrace, in the given order.
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#
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global hex
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global decimal
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#
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# This is a "backtrace break" ("btb"):
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#
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set btb "\[^\r\n\]+\[\r\n\]+\#${decimal}\[ \t\]+${hex} (\\\[PAC\\\] )?in "
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# One of the threads is blocked on a call to pthread_cond_wait, and
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# we want to verify that we are able to get a sensible backtrace for
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# that thread. Because we don't know its thread ID, we can't switch
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# to it before doing the backtrace. So we get a backtrace for all
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# threads, and verify that one them returns the expected backtrace.
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gdb_test "thread apply all backtrace" \
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"pthread_cond_wait${btb}cond_wait${btb}noreturn${btb}forever_pthread.*" \
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"backtrace in blocked thread"
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