public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
From: Marcin Wojtas <mw@semihalf.com>
To: edk2-devel@lists.01.org
Cc: leif.lindholm@linaro.org, ard.biesheuvel@linaro.org,
	nadavh@marvell.com, neta@marvell.com, kostap@marvell.com,
	jinghua@marvell.com, mw@semihalf.com, jsd@semihalf.com
Subject: [platforms: PATCH 03/13] Marvell/Armada: Armada70x0Lib: Terminate call stack list at entry
Date: Mon,  9 Oct 2017 19:00:52 +0200	[thread overview]
Message-ID: <1507568462-28775-4-git-send-email-mw@semihalf.com> (raw)
In-Reply-To: <1507568462-28775-1-git-send-email-mw@semihalf.com>

From: Ard Biesheuvel <ard.biesheuvel@linaro.org>

To avoid dereferencing junk when walking the call stack in exception
handlers (which may prevent us from getting a full backtrace), set
the frame pointer to 0x0 when first entering UEFI.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
---
 Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S b/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S
index 9265636..72f8cfc 100644
--- a/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S
+++ b/Platform/Marvell/Armada/Library/Armada70x0Lib/AArch64/ArmPlatformHelper.S
@@ -16,6 +16,7 @@
 #include <Library/ArmLib.h>
 
 ASM_FUNC(ArmPlatformPeiBootAction)
+  mov   x29, xzr
   ret
 
 //UINTN
-- 
1.8.3.1



  parent reply	other threads:[~2017-10-09 16:50 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-09 17:00 [platforms: PATCH 00/13] Armada 7k/8k - misc improvements Marcin Wojtas
2017-10-09 17:00 ` [platforms: PATCH 01/13] Marvell/Armada: Introduce platform initialization driver Marcin Wojtas
2017-10-10 14:37   ` Leif Lindholm
2017-10-10 14:45     ` Marcin Wojtas
2017-10-10 15:03       ` Leif Lindholm
2017-10-10 15:06         ` Marcin Wojtas
2017-10-10 15:26           ` Leif Lindholm
2017-10-10 20:36             ` Ard Biesheuvel
2017-10-11  4:53               ` Marcin Wojtas
2017-10-11  8:32                 ` Leif Lindholm
2017-10-11  8:43                   ` Marcin Wojtas
2017-10-11  9:14                     ` Leif Lindholm
2017-10-11  9:16                       ` Marcin Wojtas
2017-10-09 17:00 ` [platforms: PATCH 02/13] Marvell/Armada: Switch to dynamic PCDs Marcin Wojtas
2017-10-10 14:38   ` Leif Lindholm
2017-10-09 17:00 ` Marcin Wojtas [this message]
2017-10-10 14:39   ` [platforms: PATCH 03/13] Marvell/Armada: Armada70x0Lib: Terminate call stack list at entry Leif Lindholm
2017-10-09 17:00 ` [platforms: PATCH 04/13] Marvell/Armada: Armada70x0Lib: Clean FV in the D-cache before boot Marcin Wojtas
2017-10-10 14:43   ` Leif Lindholm
2017-10-10 14:50     ` Marcin Wojtas
2017-10-10 15:29       ` Leif Lindholm
2017-10-10 20:39         ` Ard Biesheuvel
2017-10-09 17:00 ` [platforms: PATCH 05/13] Marvell/Armada: Use 4k/64k aligned sections for DXE/DXE-rt modules Marcin Wojtas
2017-10-10 14:44   ` Leif Lindholm
2017-10-09 17:00 ` [platforms: PATCH 06/13] Marvell/Armada: Switch to generic BDS Marcin Wojtas
2017-10-10 14:45   ` Leif Lindholm
2017-10-09 17:00 ` [platforms: PATCH 07/13] Marvell/Armada: Re-enable driver model diagnostics PCDs Marcin Wojtas
2017-10-10 14:46   ` Leif Lindholm
2017-10-09 17:00 ` [platforms: PATCH 08/13] Marvell/Armada: Modify GICC alias Marcin Wojtas
2017-10-10 14:53   ` Leif Lindholm
2017-10-10 14:56     ` Marcin Wojtas
2017-10-10 20:45       ` Ard Biesheuvel
2017-10-10 21:10         ` Leif Lindholm
2017-10-09 17:00 ` [platforms: PATCH 09/13] Marvell/Armada: Disable PerformanceLibrary Marcin Wojtas
2017-10-10 14:54   ` Leif Lindholm
2017-10-09 17:00 ` [platforms: PATCH 10/13] Marvell/Armada: Switch to unicore PrePi Marcin Wojtas
2017-10-10 14:54   ` Leif Lindholm
2017-10-09 17:01 ` [platforms: PATCH 11/13] Marvell/Armada: Remove outdated SEC alignment override Marcin Wojtas
2017-10-10 14:58   ` Leif Lindholm
2017-10-10 15:03     ` Marcin Wojtas
2017-10-09 17:01 ` [platforms: PATCH 12/13] Marvell/Armada: Add the UefiPxeBcDxe driver Marcin Wojtas
2017-10-10 14:59   ` Leif Lindholm
2017-10-09 17:01 ` [platforms: PATCH 13/13] Marvell/Documentation: Follow EDK2 coding style in the PortingGuide Marcin Wojtas
2017-10-10 14:59   ` Leif Lindholm

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-list from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1507568462-28775-4-git-send-email-mw@semihalf.com \
    --to=devel@edk2.groups.io \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox