e59a40b92c
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>
75 lines
1.8 KiB
Plaintext
75 lines
1.8 KiB
Plaintext
;
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; Copyright (c) 2024, Ampere Computing LLC. All rights reserved.<BR>
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; Copyright (c) 2011, Hewlett-Packard Company. All rights reserved.<BR>
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;
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; SPDX-License-Identifier: BSD-2-Clause-Patent
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;
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PARAMETERS &systbl
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gosub FindDebugInfo &systbl
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enddo
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FindDebugInfo:
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LOCAL &SystemTable &CfgTableEntries &ConfigTable &i &offset &dbghdr &dbgentries &dbgptr &dbginfo &loadedimg
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ENTRY &SystemTable
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&dbgentries=0
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&CfgTableEntries=Data.Long(a:&SystemTable+0x68)
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&ConfigTable=Data.Long(a:&SystemTable+0x70)
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print "config table is at &ConfigTable (&CfgTableEntries entries)"
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; now search for debug info entry with guid 49152E77-1ADA-4764-B7A2-7AFEFED95E8B
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; 0x49152E77 0x47641ADA 0xFE7AA2B7 0x8B5ED9FE
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&i=0
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while &i<&CfgTableEntries
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(
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&offset=&ConfigTable+(&i*0x18)
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if Data.Long(a:&offset)==0x49152E77
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(
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if Data.Long(a:&offset+4)==0x47641ADA
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(
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if Data.Long(a:&offset+8)==0xFE7AA2B7
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(
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if Data.Long(a:&offset+0xc)==0x8B5ED9FE
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(
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&dbghdr=Data.Long(a:&offset+0x10)
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&dbgentries=Data.Long(a:&dbghdr+4)
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&dbgptr=Data.Long(a:&dbghdr+8)
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)
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)
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)
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)
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&i=&i+1
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)
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if &dbgentries==0
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(
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print "no debug entries found"
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return
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)
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print "debug table at &dbgptr (&dbgentries entries)"
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symbol.reset
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&i=0
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while &i<&dbgentries
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(
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&dbginfo=Data.Long(a:&dbgptr+(&i*4))
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if &dbginfo!=0
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(
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if Data.Long(a:&dbginfo)==1 ; normal debug info type
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(
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&loadedimg=Data.Long(a:&dbginfo+8)
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&imagebaseptr=&loadedimg+0x40
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&imagebase=Data.Long(a:&imagebaseptr)
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do ~~~~/EfiProcessPeImage.cmm "&imagebase"
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)
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)
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&i=&i+1
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)
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return
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