From: "Marvin Häuser" <mhaeuser@posteo.de>
To: devel@edk2.groups.io
Cc: Jian J Wang <jian.j.wang@intel.com>,
Hao A Wu <hao.a.wu@intel.com>, Dandan Bi <dandan.bi@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Vitaly Cheptsov <vit9696@protonmail.com>
Subject: [PATCH v2 2/7] MdeModulePkg/DxeCore: Fix DebugImageInfoTable size report
Date: Mon, 9 Aug 2021 09:51:25 +0000 [thread overview]
Message-ID: <5159497b61000dee562cd18b7e6cbc519f00fe8b.1628502345.git.mhaeuser@posteo.de> (raw)
In-Reply-To: <cover.1628502345.git.mhaeuser@posteo.de>
Separate tracking the used entries from the table's self-reported
size. Removing an entry from the table does not necessarily reduce
the size of the table as defragmentation is not performed.
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Vitaly Cheptsov <vit9696@protonmail.com>
Signed-off-by: Marvin Häuser <mhaeuser@posteo.de>
---
MdeModulePkg/Core/Dxe/Misc/DebugImageInfo.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/MdeModulePkg/Core/Dxe/Misc/DebugImageInfo.c b/MdeModulePkg/Core/Dxe/Misc/DebugImageInfo.c
index 7bd970115111..cc22e23eb0b3 100644
--- a/MdeModulePkg/Core/Dxe/Misc/DebugImageInfo.c
+++ b/MdeModulePkg/Core/Dxe/Misc/DebugImageInfo.c
@@ -18,6 +18,8 @@ EFI_DEBUG_IMAGE_INFO_TABLE_HEADER mDebugInfoTableHeader = {
UINTN mMaxTableEntries = 0;
+UINTN mUsedTableEntries = 0;
+
EFI_SYSTEM_TABLE_POINTER *mDebugTable = NULL;
#define EFI_DEBUG_TABLE_ENTRY_SIZE (sizeof (VOID *))
@@ -178,7 +180,7 @@ CoreNewDebugImageInfoEntry (
Table = mDebugInfoTableHeader.EfiDebugImageInfoTable;
- if (mDebugInfoTableHeader.TableSize < mMaxTableEntries) {
+ if (mUsedTableEntries < mMaxTableEntries) {
//
// We still have empty entires in the Table, find the first empty entry.
//
@@ -237,8 +239,17 @@ CoreNewDebugImageInfoEntry (
// increase the number of EFI_DEBUG_IMAGE_INFO elements.
//
mDebugInfoTableHeader.UpdateStatus |= EFI_DEBUG_IMAGE_INFO_TABLE_MODIFIED;
+ mUsedTableEntries++;
Table[Index].NormalImage = NormalImage;
- mDebugInfoTableHeader.TableSize++;
+ //
+ // Only increase the amount of elements in the table if the new entry did
+ // not take the place of a previously removed entry.
+ //
+ if (Index == mDebugInfoTableHeader.TableSize) {
+ mDebugInfoTableHeader.TableSize++;
+ }
+
+ ASSERT (Index < mDebugInfoTableHeader.TableSize);
}
mDebugInfoTableHeader.UpdateStatus &= ~EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS;
}
@@ -274,9 +285,10 @@ CoreRemoveDebugImageInfoEntry (
mDebugInfoTableHeader.UpdateStatus |= EFI_DEBUG_IMAGE_INFO_TABLE_MODIFIED;
Table[Index].NormalImage = NULL;
//
- // Decrease the number of EFI_DEBUG_IMAGE_INFO elements.
+ // Do not reduce the amount of elements reported to be in the table as
+ // this would only work for the last element without defragmentation.
//
- mDebugInfoTableHeader.TableSize--;
+ mUsedTableEntries--;
//
// Free up the record.
//
--
2.31.1
next prev parent reply other threads:[~2021-08-09 9:51 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-09 9:51 [PATCH v2 0/7] Fix various issues regarding DebugImageInfoTable Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 1/2] BaseTools: Define the read-only data section name per toolchain Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 2/2] UefiCpuPkg/BaseUefiCpuLib: Use toolchain-specific rodata section name Marvin Häuser
2021-08-10 2:43 ` Ni, Ray
2021-08-10 4:40 ` [edk2-devel] " Andrew Fish
2021-08-10 8:43 ` Marvin Häuser
2021-08-10 4:19 ` [edk2-devel] [PATCH v2 1/2] BaseTools: Define the read-only data section name per toolchain Andrew Fish
2021-08-10 8:27 ` Marvin Häuser
2021-08-10 19:35 ` Andrew Fish
2021-08-10 21:30 ` Marvin Häuser
2021-08-10 21:58 ` Andrew Fish
2021-08-11 8:11 ` Marvin Häuser
2021-08-11 17:19 ` Andrew Fish
2021-08-12 7:26 ` Marvin Häuser
2021-08-12 20:25 ` Marvin Häuser
2021-08-12 22:53 ` Andrew Fish
[not found] ` <169AB0F8BD9C50BA.13770@groups.io>
2021-08-16 21:13 ` Andrew Fish
[not found] ` <169A090BBBBE12C1.15606@groups.io>
2021-08-10 19:49 ` Andrew Fish
2021-08-10 21:24 ` Marvin Häuser
2021-08-10 21:54 ` Andrew Fish
2021-08-09 9:51 ` [PATCH v2 1/7] MdeModulePkg/DxeCore: Consistent DebugImageInfoTable updates Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 1/2] MdePkg/BaseLib: Fix unaligned API prototypes Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 2/2] BaseTools/CommonLib: " Marvin Häuser
2021-08-09 16:15 ` [PATCH v2 1/2] MdePkg/BaseLib: " Michael D Kinney
2021-08-09 21:32 ` [edk2-devel] " Andrew Fish
2021-08-10 8:53 ` Marvin Häuser
2021-08-10 17:36 ` Andrew Fish
2021-08-10 21:14 ` Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 1/2] SecurityPkg/DxeImageVerificationLib: Fix certificate lookup algorithm Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 2/2] SecurityPkg/SecureBootConfigDxe: " Marvin Häuser
2021-08-12 1:12 ` [edk2-devel] " Min Xu
2021-08-12 1:11 ` [edk2-devel] [PATCH v2 1/2] SecurityPkg/DxeImageVerificationLib: " Min Xu
2021-08-09 9:51 ` Marvin Häuser [this message]
2021-08-09 9:51 ` [PATCH v2 3/7] EmbeddedPkg/GdbStub: Check DebugImageInfoTable type safely Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 4/7] ArmPkg/DefaultExceptionHandlerLib: " Marvin Häuser
2021-08-09 11:55 ` Ard Biesheuvel
2021-08-09 12:40 ` [edk2-devel] " Marvin Häuser
2021-08-09 21:19 ` Marvin Häuser
2021-08-16 9:50 ` Ard Biesheuvel
2021-08-09 9:51 ` [PATCH v2 5/7] MdeModulePkg/CoreDxe: Mandatory LoadedImage for DebugImageInfoTable Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 6/7] EmbeddedPkg/GdbStub: " Marvin Häuser
2021-08-09 9:51 ` [PATCH v2 7/7] ArmPkg/DefaultExceptionHandlerLib: " Marvin Häuser
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