diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-09-09 08:17:40 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-09-09 13:46:52 +0100 |
| commit | 35071e15748fa54809e485935b631dbe58c1f078 (patch) | |
| tree | 78f39847b89614d777274a78a66427c6cbc05372 /MdePkg | |
| parent | 2d41ea3aed4ea1935fc63df35b834e9626f896df (diff) | |
| download | edk2-35071e15748fa54809e485935b631dbe58c1f078.zip edk2-35071e15748fa54809e485935b631dbe58c1f078.tar.gz edk2-35071e15748fa54809e485935b631dbe58c1f078.tar.bz2 | |
MdePkg/BaseLib AARCH64: terminate stack frame list on stack switch
When switching to the DXE phase stack, set the frame pointer to zero so
that code walking the stack frame will not try to access stack frames
belonging to the old stack.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Library/BaseLib/AArch64/SwitchStack.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/AArch64/SwitchStack.S b/MdePkg/Library/BaseLib/AArch64/SwitchStack.S index 2bce9c9..c3ac8d7 100644 --- a/MdePkg/Library/BaseLib/AArch64/SwitchStack.S +++ b/MdePkg/Library/BaseLib/AArch64/SwitchStack.S @@ -40,6 +40,7 @@ InternalSwitchStackAsm ( );
**/
ASM_PFX(InternalSwitchStackAsm):
+ mov x29, #0
mov x30, x0
mov sp, x3
mov x0, x1
|