From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
To: lkml <linux-kernel@vger.kernel.org>
Cc: ppcdev <linuxppc-dev@lists.ozlabs.org>,
oleg@redhat.com, Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Subject: [PATCH v2 2/4] uprobes: refuse uprobe on trap variants
Date: Fri, 22 Mar 2013 20:47:58 +0530 [thread overview]
Message-ID: <20130322151758.GC20010@in.ibm.com> (raw)
In-Reply-To: <20130322151627.GB20010@in.ibm.com>
From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Refuse to place a uprobe if a trap variant already exists in the
file copy at the address.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
---
kernel/events/uprobes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-3.9-rc3/kernel/events/uprobes.c
===================================================================
--- linux-3.9-rc3.orig/kernel/events/uprobes.c
+++ linux-3.9-rc3/kernel/events/uprobes.c
@@ -573,7 +573,7 @@ static int prepare_uprobe(struct uprobe
goto out;
ret = -ENOTSUPP;
- if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn))
+ if (is_trap_insn((uprobe_opcode_t *)uprobe->arch.insn))
goto out;
ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, vaddr);
WARNING: multiple messages have this Message-ID (diff)
From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
To: lkml <linux-kernel@vger.kernel.org>
Cc: oleg@redhat.com, Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
benh@kernel.crashing.org, ppcdev <linuxppc-dev@lists.ozlabs.org>
Subject: [PATCH v2 2/4] uprobes: refuse uprobe on trap variants
Date: Fri, 22 Mar 2013 20:47:58 +0530 [thread overview]
Message-ID: <20130322151758.GC20010@in.ibm.com> (raw)
In-Reply-To: <20130322151627.GB20010@in.ibm.com>
From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Refuse to place a uprobe if a trap variant already exists in the
file copy at the address.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
---
kernel/events/uprobes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-3.9-rc3/kernel/events/uprobes.c
===================================================================
--- linux-3.9-rc3.orig/kernel/events/uprobes.c
+++ linux-3.9-rc3/kernel/events/uprobes.c
@@ -573,7 +573,7 @@ static int prepare_uprobe(struct uprobe
goto out;
ret = -ENOTSUPP;
- if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn))
+ if (is_trap_insn((uprobe_opcode_t *)uprobe->arch.insn))
goto out;
ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, vaddr);
next prev parent reply other threads:[~2013-03-22 15:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 15:16 [PATCH v2 1/4] uprobes: add trap variant helper Ananth N Mavinakayanahalli
2013-03-22 15:16 ` Ananth N Mavinakayanahalli
2013-03-22 15:17 ` Ananth N Mavinakayanahalli [this message]
2013-03-22 15:17 ` [PATCH v2 2/4] uprobes: refuse uprobe on trap variants Ananth N Mavinakayanahalli
2013-03-26 12:06 ` Srikar Dronamraju
2013-03-26 12:06 ` Srikar Dronamraju
2013-03-22 15:18 ` [PATCH v2 3/4] uprobes/powerpc: teach uprobes to ignore gdb breakpoints Ananth N Mavinakayanahalli
2013-03-22 15:18 ` Ananth N Mavinakayanahalli
2013-03-26 12:06 ` Srikar Dronamraju
2013-03-26 12:06 ` Srikar Dronamraju
2013-03-22 15:19 ` [PATCH v2 4/4] uprobes/powerpc: remove additional trap instruction check Ananth N Mavinakayanahalli
2013-03-22 15:19 ` Ananth N Mavinakayanahalli
2013-03-26 12:07 ` Srikar Dronamraju
2013-03-26 12:07 ` Srikar Dronamraju
2013-03-23 18:08 ` [PATCH v2 1/4] uprobes: add trap variant helper Oleg Nesterov
2013-03-23 18:08 ` Oleg Nesterov
2013-03-26 12:06 ` Srikar Dronamraju
2013-03-26 12:06 ` Srikar Dronamraju
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