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| author | Rebecca Cran <rebecca@os.amperecomputing.com> | 2024-01-29 11:59:16 -0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-02-27 17:17:38 +0000 |
| commit | e59a40b92ce92f17e3d8d99917868c5678d408b7 (patch) | |
| tree | b2d0fdd21fe2335025ea16476e283a81dac2c782 /EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm | |
| parent | aceb3490a2a350b128156fd4e36e53fc19739e4e (diff) | |
| download | edk2-e59a40b92ce92f17e3d8d99917868c5678d408b7.tar.gz | |
EmbeddedPkg/Scripts/LauterbachT32: Fix EfiLoadDxe.cmm
There have been many changes since EfiLoadDxe.cmm was last updated in
2011. The EFI_SYSTEM_TABLE can no longer be found by scanning memory on
4KB boundaries, so require users pass in its address instead. Update
various offsets so that the debug information can be found and loaded
with a recent version of TRACE32.
Signed-off-by: Rebecca Cran <rebecca@os.amperecomputing.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Diffstat (limited to 'EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm')
| -rw-r--r-- | EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm | 77 |
1 files changed, 11 insertions, 66 deletions
diff --git a/EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm b/EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm index 1605a9b478..06d307e12d 100644 --- a/EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm +++ b/EmbeddedPkg/Scripts/LauterbachT32/EfiLoadDxe.cmm @@ -1,79 +1,22 @@ ;
+; Copyright (c) 2024, Ampere Computing LLC. All rights reserved.<BR>
; Copyright (c) 2011, Hewlett-Packard Company. All rights reserved.<BR>
;
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
- LOCAL &maxmem &systbl &memsize
-
- &memsize=0x20000000 ; default to 512MB
-
- gosub FindSystemTable &memsize
- ENTRY &systbl
-
- if &systbl!=0
- (
- print "found system table at &systbl"
- gosub FindDebugInfo &systbl
- )
- else
- (
- print "ERROR: system table not found, check memory size"
- )
- enddo
-
-FindSystemTable:
- LOCAL &TopOfRam &offset
- ENTRY &TopOfRam
-
- print "FindSystemTable"
- print "top of mem is &TopOfRam$"
-
- &offset=&TopOfRam
-
- ; align to highest 4MB boundary
- &offset=&offset&0xFFC00000
-
- ; start at top and look on 4MB boundaries for system table ptr structure
- while &offset>0
- (
- ; low signature match
- if Data.Long(a:&offset)==0x20494249
- (
- ; high signature match
- if Data.Long(a:&offset+4)==0x54535953
- (
- ; less than 4GB?
- if Data.Long(a:&offset+0x0c)==0
- (
- ; less than top of ram?
- if Data.Long(a:&offset+8)<&TopOfRam
- (
- return Data.Long(a:&offset+8)
- )
- )
- )
- )
-
- if &offset<0x400000
- (
- return 0
- )
- &offset=&offset-0x400000
- )
-
- return 0
+ PARAMETERS &systbl
+ gosub FindDebugInfo &systbl
+ enddo
FindDebugInfo:
LOCAL &SystemTable &CfgTableEntries &ConfigTable &i &offset &dbghdr &dbgentries &dbgptr &dbginfo &loadedimg
ENTRY &SystemTable
- print "FindDebugInfo"
-
&dbgentries=0
- &CfgTableEntries=Data.Long(a:&SystemTable+0x40)
- &ConfigTable=Data.Long(a:&SystemTable+0x44)
+ &CfgTableEntries=Data.Long(a:&SystemTable+0x68)
+ &ConfigTable=Data.Long(a:&SystemTable+0x70)
print "config table is at &ConfigTable (&CfgTableEntries entries)"
@@ -82,7 +25,7 @@ FindDebugInfo: &i=0
while &i<&CfgTableEntries
(
- &offset=&ConfigTable+(&i*0x14)
+ &offset=&ConfigTable+(&i*0x18)
if Data.Long(a:&offset)==0x49152E77
(
if Data.Long(a:&offset+4)==0x47641ADA
@@ -120,8 +63,10 @@ FindDebugInfo: (
if Data.Long(a:&dbginfo)==1 ; normal debug info type
(
- &loadedimg=Data.Long(a:&dbginfo+4)
- do EfiProcessPeImage Data.Long(a:&loadedimg+0x20)
+ &loadedimg=Data.Long(a:&dbginfo+8)
+ &imagebaseptr=&loadedimg+0x40
+ &imagebase=Data.Long(a:&imagebaseptr)
+ do ~~~~/EfiProcessPeImage.cmm "&imagebase"
)
)
&i=&i+1
|