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From: "wcohen at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/30401] s390x specific: invalid application of ‘sizeof’ to incomplete type ‘struct stack_frame’
Date: Fri, 06 Oct 2023 21:03:16 +0000	[thread overview]
Message-ID: <bug-30401-6586-QFBtCYqioM@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-30401-6586@http.sourceware.org/bugzilla/>

https://sourceware.org/bugzilla/show_bug.cgi?id=30401

William Cohen <wcohen at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wcohen at redhat dot com

--- Comment #1 from William Cohen <wcohen at redhat dot com> ---
I investigationed why this is failing on rhel9 s390.  The struct stack_frame
was moved arch/s390/include/asm/processor.h to
arch/s390/include/asm/stackframe.h by kernel
git commit 78c98f9074135d3dab4e39544e0a537f92388fce

Author: Martin Schwidefsky <schwidefsky@de.ibm.com>  2019-01-28 02:33:08
Committer: Martin Schwidefsky <schwidefsky@de.ibm.com>  2019-05-02 07:54:11
Parent: 1c705ad5efae9c712e763a47fbcc95b87b7347d2 (s390/opcodes: add missing
instructions to the disassembler)
Child:  ec7bf4789d95a0053bac0dfa36fbefd8cc584eea (s390/ftrace: use
HAVE_FUNCTION_GRAPH_RET_ADDR_PTR)
Branches: master, remotes/origin/master, remotes/origin/mmu_gather-race-fix,
remotes/origin/tty-splice, remotes/origin/x86-rep-insns,
remotes/origin/x86-uaccess-cleanup, wcohen/gcc9
Follows: v5.1-rc2
Precedes: v5.2-rc1

    s390/unwind: introduce stack unwind API

    Rework the dump_trace() stack unwinder interface to support different
    unwinding algorithms. The new interface looks like this:

        struct unwind_state state;
        unwind_for_each_frame(&state, task, regs, start_stack)
                do_something(state.sp, state.ip, state.reliable);

    The unwind_bc.c file contains the implementation for the classic
    back-chain unwinder.

    One positive side effect of the new code is it now handles ftraced
    functions gracefully. It prints the real name of the return function
    instead of 'return_to_handler'.

    Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

I am looking around to see there is a common include that ends up pulling in
the definition of struct stack_frame. The patch above adds "#include
<asm/stacktrace.h>" a number of files.  Might need to resort to a STAPCONF to
add the include where needed.

-- 
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  reply	other threads:[~2023-10-06 21:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-28 12:33 [Bug runtime/30401] New: " mcermak at redhat dot com
2023-10-06 21:03 ` wcohen at redhat dot com [this message]
2023-10-12  3:45 ` [Bug runtime/30401] " wcohen at redhat dot com
2023-10-12  9:17 ` sam at gentoo dot org
2023-10-12 17:59 ` wcohen at redhat dot com

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