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From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,palmer@rivosinc.com,Kuan-Ying.Lee@mediatek.com,kbingham@kernel.org,jan.kiszka@siemens.com,debug@rivosinc.com,ajones@ventanamicro.com,mail@florommel.de,akpm@linux-foundation.org
Subject: [merged mm-nonmm-stable] scripts-gdb-fix-parameter-handling-in-lx_per_cpu.patch removed from -mm tree
Date: Sun, 05 May 2024 18:15:06 -0700	[thread overview]
Message-ID: <20240506011506.834B4C116B1@smtp.kernel.org> (raw)


The quilt patch titled
     Subject: scripts/gdb: fix parameter handling in $lx_per_cpu
has been removed from the -mm tree.  Its filename was
     scripts-gdb-fix-parameter-handling-in-lx_per_cpu.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Florian Rommel <mail@florommel.de>
Subject: scripts/gdb: fix parameter handling in $lx_per_cpu
Date: Thu, 25 Apr 2024 17:34:59 +0200

Before, the script tried to get the address by constructing a pointer to
the parameter (by name).  However, since GDB now passes the parameter as a
GdbValue, we cannot get its name.  Instead, we retrieve the address
through GdbValue's address attribute.

Before:
>>> p $lx_per_cpu(cpu_info)
Traceback (most recent call last):
  File "./scripts/gdb/linux/cpus.py", line 152, in invoke
    var_ptr = gdb.parse_and_eval("&" + var_name.string())
                                       ^^^^^^^^^^^^^^^^^
gdb.error: Trying to read string with inappropriate type `struct cpuinfo_x86'.

Link: https://lkml.kernel.org/r/20240425153501.749966-3-mail@florommel.de
Signed-off-by: Florian Rommel <mail@florommel.de>
Cc: Andrew Jones <ajones@ventanamicro.com>
Cc: Deepak Gupta <debug@rivosinc.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/gdb/linux/cpus.py |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/scripts/gdb/linux/cpus.py~scripts-gdb-fix-parameter-handling-in-lx_per_cpu
+++ a/scripts/gdb/linux/cpus.py
@@ -152,9 +152,8 @@ Note that VAR has to be quoted as string
     def __init__(self):
         super(PerCpu, self).__init__("lx_per_cpu")
 
-    def invoke(self, var_name, cpu=-1):
-        var_ptr = gdb.parse_and_eval("&" + var_name.string())
-        return per_cpu(var_ptr, cpu)
+    def invoke(self, var, cpu=-1):
+        return per_cpu(var.address, cpu)
 
 
 PerCpu()
_

Patches currently in -mm which might be from mail@florommel.de are



                 reply	other threads:[~2024-05-06  1:15 UTC|newest]

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