xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64: Add stack information to on_accessible_stack

Browse Source 
In preparation for enabling the stackleak plugin on arm64,
we need a way to get the bounds of the current stack. Extend
on_accessible_stack to get this information.

Acked-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
[will: folded in fix for allmodconfig build breakage w/ sdei]
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Laura Abbott
2018-07-20 14:41:53 -07:00
committed by Will Deacon
parent 2c870e6113
commit 8a1ccfbc9e
5 changed files with 111 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/kernel/stacktrace.c
View File

@@ -50,7 +50,7 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
if (!tsk)
tsk = current;
if (!on_accessible_stack(tsk, fp))
if (!on_accessible_stack(tsk, fp, NULL))
return -EINVAL;
frame->fp = READ_ONCE_NOCHECK(*(unsigned long *)(fp));