On 3/4/21 4:21 PM, Christophe Leroy wrote:
Le 04/03/2021 à 11:13, Ravi Bangoria a écrit :
On 3/4/21 1:02 PM, Christophe Leroy wrote:
Le 04/03/2021 à 06:05, Ravi Bangoria a écrit :
As per ISA 3.1, prefixed instruction should not cross 64-byte
boundary. So don't allow Uprobe on such
Le 04/03/2021 à 11:13, Ravi Bangoria a écrit :
On 3/4/21 1:02 PM, Christophe Leroy wrote:
Le 04/03/2021 à 06:05, Ravi Bangoria a écrit :
As per ISA 3.1, prefixed instruction should not cross 64-byte
boundary. So don't allow Uprobe on such prefixed instruction.
There are two ways probed
On 3/4/21 1:02 PM, Christophe Leroy wrote:
Le 04/03/2021 à 06:05, Ravi Bangoria a écrit :
As per ISA 3.1, prefixed instruction should not cross 64-byte
boundary. So don't allow Uprobe on such prefixed instruction.
There are two ways probed instruction is changed in mapped pages.
First,
@@ -41,6 +41,14 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe,
if (addr & 0x03)
return -EINVAL;
+ if (!IS_ENABLED(CONFIG_PPC64) || !cpu_has_feature(CPU_FTR_ARCH_31))
+ return 0;
Sorry, I missed this last time, but I think we can drop
Le 04/03/2021 à 06:05, Ravi Bangoria a écrit :
As per ISA 3.1, prefixed instruction should not cross 64-byte
boundary. So don't allow Uprobe on such prefixed instruction.
There are two ways probed instruction is changed in mapped pages.
First, when Uprobe is activated, it searches for all
On 2021/03/04 10:35AM, Ravi Bangoria wrote:
> As per ISA 3.1, prefixed instruction should not cross 64-byte
> boundary. So don't allow Uprobe on such prefixed instruction.
>
> There are two ways probed instruction is changed in mapped pages.
> First, when Uprobe is activated, it searches for all
As per ISA 3.1, prefixed instruction should not cross 64-byte
boundary. So don't allow Uprobe on such prefixed instruction.
There are two ways probed instruction is changed in mapped pages.
First, when Uprobe is activated, it searches for all the relevant
pages and replace instruction in them. In
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