sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdeModulePkg/EbcDxe: Mitigate memcpy intrinsics

Browse Source 
Assignments of structure values cause the emission of memcpy()
intrinsics by the CLANG38 toolchain. Substitute the assignments with
calls to CopyMem() to mitigate the issue.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Vitaly Cheptsov <vit9696@protonmail.com>
Signed-off-by: Marvin H?user <mhaeuser@posteo.de>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Marvin H?user
2021-08-16 04:11:56 +08:00
committed by mergify[bot]
parent 77d5fa8024
commit b04453d36b
3 changed files with 15 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
MdeModulePkg/Universal/EbcDxe/EbcDebugger/Edb.c
View File

@@ -219,7 +219,11 @@ EdbCheckBreakpoint (
//
// If hit, record current breakpoint
//
DebuggerPrivate->DebuggerBreakpointContext[EFI_DEBUGGER_BREAKPOINT_MAX] = DebuggerPrivate->DebuggerBreakpointContext[Index];
CopyMem (
&DebuggerPrivate->DebuggerBreakpointContext[EFI_DEBUGGER_BREAKPOINT_MAX],
&DebuggerPrivate->DebuggerBreakpointContext[Index],
sizeof (DebuggerPrivate->DebuggerBreakpointContext[EFI_DEBUGGER_BREAKPOINT_MAX])
);
DebuggerPrivate->DebuggerBreakpointContext[EFI_DEBUGGER_BREAKPOINT_MAX].State = TRUE;
//
// Do not set Breakpoint flag. We record the address here just let it not patch breakpoint address when de-init.