From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
To: <linuxppc-dev@lists.ozlabs.org>
Cc: Qian Cai <cai@lca.pw>, Steven Rostedt <rostedt@goodmis.org>
Subject: [PATCH 0/3] powerpc/module_64: Fix _mcount() stub
Date: Tue, 21 Apr 2020 23:05:42 +0530 [thread overview]
Message-ID: <cover.1587488954.git.naveen.n.rao@linux.vnet.ibm.com> (raw)
This series addresses the crash reported by Qian Cai on ppc64le with
-mprofile-kernel here:
https://lore.kernel.org/r/15AC5B0E-A221-4B8C-9039-FA96B8EF7C88@lca.pw
While fixing patch_instruction() should address the crash, we should
still change the default stub we setup for _mcount() for cases where a
kernel is built without ftrace.
- Naveen
Naveen N. Rao (3):
powerpc/module_64: Consolidate ftrace code
powerpc/module_64: Simplify check for -mprofile-kernel ftrace
relocations
powerpc/module_64: Use special stub for _mcount() with
-mprofile-kernel
arch/powerpc/include/asm/module.h | 3 -
arch/powerpc/kernel/module_64.c | 281 ++++++++++++++----------------
2 files changed, 127 insertions(+), 157 deletions(-)
base-commit: a9aa21d05c33c556e48c5062b6632a9b94906570
--
2.25.1
next reply other threads:[~2020-04-21 17:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-21 17:35 Naveen N. Rao [this message]
2020-04-21 17:35 ` [PATCH 1/3] powerpc/module_64: Consolidate ftrace code Naveen N. Rao
2020-04-21 17:35 ` [PATCH 2/3] powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations Naveen N. Rao
2020-04-21 17:35 ` [PATCH 3/3] powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel Naveen N. Rao
2020-04-24 1:19 ` Qian Cai
2020-04-22 7:47 ` [PATCH 0/3] powerpc/module_64: Fix _mcount() stub Naveen N. Rao
2020-06-09 5:29 ` Michael Ellerman
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