Dmitry V. Levin
fa8c286d50
* strace.c (init): Allow -p option along with a command. (startup_child): In -D mode, record the parent of the tracer process as strace_child. (startup_attach): Save trace_tracer_pid before -D mode fork. When tracing a command in -f mode, do not check for the command's threads as it has no threads at this moment. Never attach to the tracer process. In -D mode, never attach to the parent of the tracer process, terminate that process only once at the end of startup_attach, and reset strace_child. * strace.1: Document that -p option can be used along with tracing of a command. * NEWS: Mention it. * tests/attach-p-cmd-cmd.c: New file. * tests/attach-p-cmd-p.c: Likewise. * tests/attach-p-cmd.test: New test. * tests/.gitignore: Add attach-p-cmd-cmd and attach-p-cmd-p. * tests/Makefile.am (check_PROGRAMS): Likewise. (TESTS): Add attach-p-cmd.test. This fixes Debian bug #549942.
55 lines
2.2 KiB
Bash
Executable File
55 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Check that simultaneous use of -p option and tracing of a command works.
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#
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# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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. "${srcdir=.}/init.sh"
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run_prog_skip_if_failed \
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kill -0 $$
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run_prog ./attach-p-cmd-cmd > /dev/null
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run_prog ./attach-p-cmd-p 1 > /dev/null
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OUT="$LOG.out"
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./set_ptracer_any ./attach-p-cmd-p 1 > "$OUT" &
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tracee_pid=$!
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while ! [ -s "$OUT" ]; do
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kill -0 $tracee_pid 2> /dev/null ||
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fail_ 'set_ptracer_any sleep failed'
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done
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run_strace -a30 -echdir -p $tracee_pid ./attach-p-cmd-cmd > "$OUT"
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{
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printf '%-5d --- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---\n' $tracee_pid
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printf '%-5d chdir("attach-p-cmd.test -p") = -1 ENOENT (No such file or directory)\n' $tracee_pid
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printf '%-5d +++ exited with 0 +++\n' $tracee_pid
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} >> "$OUT"
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match_diff "$LOG" "$OUT"
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rm -f "$OUT"
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