--- /dev/null
+error=abort\r
+\r
+// NOTE: THIS MAY NEED TO BE ADJUSTED\r
+// change to reflect the total amount of ram in your system\r
+define /r GetMaxMem()\r
+{\r
+ return 0x10000000; // 256 MB\r
+}\r
+.\r
+\r
+define /r GetWord(Addr)\r
+{\r
+ unsigned long data;\r
+ \r
+ if( (Addr & 0x2) == 0 )\r
+ {\r
+ data = dword(Addr);\r
+ data = data & 0xffff;\r
+ //$printf "getword data is %x\n", data$;\r
+ return data;\r
+ }\r
+ else\r
+ {\r
+ data = dword(Addr & 0xfffffffc);\r
+ //data = data >> 16;\r
+ data = data / 0x10000;\r
+ //$printf "getword data is %x (1)\n", data$;\r
+ return data;\r
+ }\r
+}\r
+.\r
+\r
+define /r ProcessPE32(imgstart)\r
+unsigned long imgstart;\r
+{\r
+ unsigned long filehdrstart;\r
+ unsigned long debugdirentryrva;\r
+ unsigned long debugtype;\r
+ unsigned long debugrva;\r
+ unsigned long dwarfsig;\r
+ unsigned long baseofcode;\r
+ unsigned long baseofdata;\r
+ unsigned long elfbase;\r
+ char *elfpath;\r
+\r
+ $printf "PE32 image found at %x",imgstart$;\r
+\r
+ //$printf "PE file hdr offset %x",dword(imgstart+0x3C)$;\r
+\r
+ // offset from dos hdr to PE file hdr\r
+ filehdrstart = imgstart + dword(imgstart+0x3C);\r
+\r
+ // offset to debug dir in PE hdrs\r
+ //$printf "debug dir is at %x",(filehdrstart+0xA8)$;\r
+ debugdirentryrva = dword(filehdrstart + 0xA8);\r
+ if(debugdirentryrva == 0)\r
+ {\r
+ $printf "no debug dir for image at %x",imgstart$;\r
+ return;\r
+ }\r
+\r
+ //$printf "debug dir entry rva is %x",debugdirentryrva$;\r
+\r
+ debugtype = dword(imgstart + debugdirentryrva + 0xc);\r
+ if( (debugtype != 0xdf) && (debugtype != 0x2) )\r
+ {\r
+ $printf "debug type is not dwarf for image at %x",imgstart$;\r
+ $printf "debug type is %x",debugtype$;\r
+ return;\r
+ }\r
+ \r
+ debugrva = dword(imgstart + debugdirentryrva + 0x14);\r
+ dwarfsig = dword(imgstart + debugrva);\r
+ if(dwarfsig != 0x66727764)\r
+ {\r
+ $printf "dwarf debug signature not found for image at %x",imgstart$;\r
+ return;\r
+ }\r
+\r
+ elfpath = (char *)(imgstart + debugrva + 0xc);\r
+\r
+ baseofcode = imgstart + dword(filehdrstart + 0x28);\r
+ baseofdata = imgstart + dword(filehdrstart + 0x2c);\r
+ \r
+ if( (baseofcode < baseofdata) && (baseofcode != 0) )\r
+ {\r
+ elfbase = baseofcode;\r
+ }\r
+ else\r
+ {\r
+ elfbase = baseofdata;\r
+ }\r
+\r
+ $printf "found path %s",elfpath$;\r
+ $fprintf 50, "load /ni /np /a %s &0x%x\n",elfpath,elfbase$;\r
+}\r
+.\r
+\r
+define /r ProcessTE(imgstart)\r
+unsigned long imgstart;\r
+{\r
+ unsigned long strippedsize;\r
+ unsigned long debugdirentryrva;\r
+ unsigned long debugtype;\r
+ unsigned long debugrva;\r
+ unsigned long dwarfsig;\r
+ unsigned long elfbase;\r
+ char *elfpath;\r
+\r
+ $printf "TE image found at %x",imgstart$;\r
+\r
+ // determine pe header bytes removed to account for in rva references\r
+ //strippedsize = word(imgstart + 0x6);\r
+ //strippedsize = (dword(imgstart + 0x4) & 0xffff0000) >> 16;\r
+ strippedsize = (dword(imgstart + 0x4) & 0xffff0000) / 0x10000;\r
+ strippedsize = strippedsize - 0x28;\r
+\r
+ debugdirentryrva = dword(imgstart + 0x20);\r
+ if(debugdirentryrva == 0)\r
+ {\r
+ $printf "no debug dir for image at %x",imgstart$;\r
+ return;\r
+ }\r
+ debugdirentryrva = debugdirentryrva - strippedsize;\r
+\r
+ //$printf "debug dir entry rva is %x",debugdirentryrva$;\r
+\r
+ debugtype = dword(imgstart + debugdirentryrva + 0xc);\r
+ if( (debugtype != 0xdf) && (debugtype != 0x2) )\r
+ {\r
+ $printf "debug type is not dwarf for image at %x",imgstart$;\r
+ $printf "debug type is %x",debugtype$;\r
+ return;\r
+ }\r
+ \r
+ debugrva = dword(imgstart + debugdirentryrva + 0x14);\r
+ debugrva = debugrva - strippedsize;\r
+ dwarfsig = dword(imgstart + debugrva);\r
+ if( (dwarfsig != 0x66727764) && (dwarfsig != 0x3031424e) )\r
+ {\r
+ $printf "dwarf debug signature not found for image at %x",imgstart$;\r
+ $printf "found %x", dwarfsig$;\r
+ return;\r
+ }\r
+ \r
+ if( dwarfsig == 0x66727764 )\r
+ {\r
+ elfpath = (char *)(imgstart + debugrva + 0xc);\r
+ $printf "looking for elf path at 0x%x", elfpath$; \r
+ }\r
+ else \r
+ {\r
+ elfpath = (char *)(imgstart + debugrva + 0x10);\r
+ $printf "looking for elf path at 0x%x", elfpath$; \r
+ }\r
+\r
+ // elf base is baseofcode (we hope that for TE images it's not baseofdata)\r
+ elfbase = imgstart + dword(imgstart + 0xc) - strippedsize;\r
+\r
+ $printf "found path %s",elfpath$;\r
+ $fprintf 50, "load /ni /np /a %s &0x%x\n",elfpath,elfbase$;\r
+}\r
+.\r
+\r
+define /r ProcessFvSection(secstart)\r
+unsigned long secstart;\r
+{\r
+ unsigned long sectionsize;\r
+ unsigned char sectiontype;\r
+\r
+ sectionsize = dword(secstart);\r
+ //sectiontype = (sectionsize & 0xff000000) >> 24;\r
+ sectiontype = (sectionsize & 0xff000000) / 0x1000000;\r
+ sectionsize = sectionsize & 0x00ffffff;\r
+\r
+ $printf "fv section at %x size %x type %x",secstart,sectionsize,sectiontype$;\r
+\r
+ if(sectiontype == 0x10) // PE32\r
+ {\r
+ ProcessPE32(secstart+0x4);\r
+ }\r
+ else if(sectiontype == 0x12) // TE\r
+ {\r
+ ProcessTE(secstart+0x4); \r
+ }\r
+}\r
+.\r
+\r
+define /r ProcessFfsFile(ffsfilestart)\r
+unsigned long ffsfilestart;\r
+{\r
+ unsigned long ffsfilesize;\r
+ unsigned long ffsfiletype;\r
+ unsigned long secoffset;\r
+ unsigned long secsize;\r
+\r
+ //ffsfiletype = byte(ffsfilestart + 0x12);\r
+ ffsfilesize = dword(ffsfilestart + 0x14);\r
+ //ffsfiletype = (ffsfilesize & 0xff000000) >> 24;\r
+ ffsfiletype = (ffsfilesize & 0xff000000) / 0x1000000;\r
+ ffsfilesize = ffsfilesize & 0x00ffffff;\r
+\r
+ if(ffsfiletype == 0xff) return;\r
+\r
+ $printf "ffs file at %x size %x type %x",ffsfilestart,ffsfilesize,ffsfiletype$;\r
+\r
+ secoffset = ffsfilestart + 0x18;\r
+\r
+ // loop through sections in file\r
+ while(secoffset < (ffsfilestart + ffsfilesize))\r
+ {\r
+ // process fv section and increment section offset by size\r
+ secsize = dword(secoffset) & 0x00ffffff;\r
+ ProcessFvSection(secoffset);\r
+ secoffset = secoffset + secsize;\r
+\r
+ // align to next 4 byte boundary\r
+ if( (secoffset & 0x3) != 0 )\r
+ {\r
+ secoffset = secoffset + (0x4 - (secoffset & 0x3));\r
+ }\r
+ } // end section loop\r
+}\r
+.\r
+\r
+define /r LoadPeiSec()\r
+{\r
+ unsigned long fvbase;\r
+ unsigned long fvlen;\r
+ unsigned long fvsig;\r
+ unsigned long ffsoffset;\r
+ unsigned long ffsfilesize;\r
+\r
+ fvbase = FindFv();\r
+ $printf "fvbase %x",fvbase$;\r
+\r
+ // get fv signature field\r
+ fvsig = dword(fvbase + 0x28);\r
+ if(fvsig != 0x4856465F)\r
+ {\r
+ $printf "FV does not have proper signature, exiting"$;\r
+ return 0;\r
+ }\r
+\r
+ $printf "FV signature found"$;\r
+\r
+ $fopen 50, 'C:\loadfiles.inc'$;\r
+\r
+ fvlen = dword(fvbase + 0x20);\r
+ \r
+ // first ffs file is after fv header, use headerlength field\r
+ //ffsoffset = (dword(fvbase + 0x30) & 0xffff0000) >> 16;\r
+ ffsoffset = (dword(fvbase + 0x30) & 0xffff0000) / 0x10000;\r
+ ffsoffset = fvbase + GetWord(fvbase + 0x30);\r
+\r
+ // loop through ffs files\r
+ while(ffsoffset < (fvbase+fvlen))\r
+ {\r
+ // process ffs file and increment by ffs file size field\r
+ ProcessFfsFile(ffsoffset); \r
+ ffsfilesize = (dword(ffsoffset + 0x14) & 0x00ffffff);\r
+ if(ffsfilesize == 0)\r
+ {\r
+ break;\r
+ }\r
+ ffsoffset = ffsoffset + ffsfilesize;\r
+ \r
+\r
+ // align to next 8 byte boundary\r
+ if( (ffsoffset & 0x7) != 0 )\r
+ {\r
+ ffsoffset = ffsoffset + (0x8 - (ffsoffset & 0x7));\r
+ }\r
+ \r
+ } // end fv ffs loop\r
+\r
+ $vclose 50$;\r
+\r
+}\r
+.\r
+\r
+define /r FindSystemTable(TopOfRam)\r
+unsigned long TopOfRam;\r
+{\r
+ unsigned long offset;\r
+ \r
+ $printf "FindSystemTable"$;\r
+ $printf "top of mem is %x",TopOfRam$;\r
+ \r
+ offset = TopOfRam;\r
+ \r
+ // align to highest 4MB boundary\r
+ offset = offset & 0xFFC00000;\r
+ \r
+ // start at top and look on 4MB boundaries for system table ptr structure\r
+ while(offset > 0)\r
+ {\r
+ //$printf "checking %x",offset$;\r
+ //$printf "value is %x",dword(offset)$;\r
+ \r
+ // low signature match\r
+ if(dword(offset) == 0x20494249)\r
+ {\r
+ // high signature match\r
+ if(dword(offset+4) == 0x54535953)\r
+ {\r
+ // less than 4GB?\r
+ if(dword(offset+0x0c) == 0)\r
+ {\r
+ // less than top of ram?\r
+ if(dword(offset+8) < TopOfRam)\r
+ {\r
+ return(dword(offset+8));\r
+ }\r
+ }\r
+ }\r
+ \r
+ }\r
+ \r
+ if(offset < 0x400000) break;\r
+ offset = offset - 0x400000; \r
+ }\r
+ \r
+ return 0;\r
+}\r
+.\r
+\r
+define /r ProcessImage(ImageBase)\r
+unsigned long ImageBase;\r
+{\r
+ $printf "ProcessImage %x", ImageBase$;\r
+}\r
+.\r
+\r
+define /r FindDebugInfo(SystemTable)\r
+unsigned long SystemTable;\r
+{\r
+ unsigned long CfgTableEntries;\r
+ unsigned long ConfigTable;\r
+ unsigned long i;\r
+ unsigned long offset;\r
+ unsigned long dbghdr;\r
+ unsigned long dbgentries;\r
+ unsigned long dbgptr;\r
+ unsigned long dbginfo;\r
+ unsigned long loadedimg;\r
+ \r
+ $printf "FindDebugInfo"$;\r
+ \r
+ dbgentries = 0;\r
+ CfgTableEntries = dword(SystemTable + 0x40);\r
+ ConfigTable = dword(SystemTable + 0x44);\r
+ \r
+ $printf "config table is at %x (%d entries)", ConfigTable, CfgTableEntries$;\r
+ \r
+ // now search for debug info entry with guid 49152E77-1ADA-4764-B7A2-7AFEFED95E8B\r
+ // 0x49152E77 0x47641ADA 0xFE7AA2B7 0x8B5ED9FE\r
+ for(i=0; i<CfgTableEntries; i++)\r
+ {\r
+ offset = ConfigTable + (i*0x14);\r
+ if(dword(offset) == 0x49152E77)\r
+ {\r
+ if(dword(offset+4) == 0x47641ADA)\r
+ {\r
+ if(dword(offset+8) == 0xFE7AA2B7)\r
+ {\r
+ if(dword(offset+0xc) == 0x8B5ED9FE)\r
+ {\r
+ dbghdr = dword(offset+0x10);\r
+ dbgentries = dword(dbghdr + 4);\r
+ dbgptr = dword(dbghdr + 8);\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+ \r
+ if(dbgentries == 0)\r
+ {\r
+ $printf "no debug entries found"$;\r
+ return;\r
+ }\r
+ \r
+ $printf "debug table at %x (%d entries)", dbgptr, dbgentries$;\r
+ \r
+ for(i=0; i<dbgentries; i++)\r
+ {\r
+ dbginfo = dword(dbgptr + (i*4));\r
+ if(dbginfo != 0)\r
+ {\r
+ if(dword(dbginfo) == 1) // normal debug info type\r
+ {\r
+ loadedimg = dword(dbginfo + 4);\r
+ ProcessPE32(dword(loadedimg + 0x20));\r
+ }\r
+ }\r
+ }\r
+}\r
+.\r
+\r
+define /r LoadDxe()\r
+{\r
+ unsigned long maxmem;\r
+ unsigned long systbl;\r
+ \r
+ $printf "LoadDxe"$;\r
+ \r
+ $fopen 50, 'C:\loadfiles.inc'$;\r
+ \r
+ maxmem = GetMaxMem();\r
+ systbl = FindSystemTable(maxmem);\r
+ if(systbl != 0)\r
+ {\r
+ $printf "found system table at %x",systbl$;\r
+ FindDebugInfo(systbl);\r
+ }\r
+ \r
+ $vclose 50$;\r
+}\r
+.\r
+\r
+define /r LoadRuntimeDxe()\r
+\r
+{\r
+ unsigned long maxmem;\r
+ unsigned long SystemTable;\r
+ unsigned long CfgTableEntries;\r
+ unsigned long ConfigTable;\r
+ unsigned long i;\r
+ unsigned long offset;\r
+ unsigned long numentries;\r
+ unsigned long RuntimeDebugInfo;\r
+ unsigned long DebugInfoOffset;\r
+ unsigned long imgbase;\r
+ \r
+ $printf "LoadRuntimeDxe"$;\r
+ \r
+ $fopen 50, 'C:\loadfiles.inc'$;\r
+ \r
+ RuntimeDebugInfo = 0x80000010;\r
+ \r
+ if(RuntimeDebugInfo != 0)\r
+ {\r
+ numentries = dword(RuntimeDebugInfo);\r
+ \r
+ $printf "runtime debug info is at %x (%d entries)", RuntimeDebugInfo, numentries$;\r
+ \r
+ DebugInfoOffset = RuntimeDebugInfo + 0x4;\r
+ for(i=0; i<numentries; i++)\r
+ {\r
+ imgbase = dword(DebugInfoOffset);\r
+ if(imgbase != 0)\r
+ {\r
+ $printf "found image at %x",imgbase$;\r
+ ProcessPE32(imgbase);\r
+ }\r
+ DebugInfoOffset = DebugInfoOffset + 0x4;\r
+ }\r
+ }\r
+ \r
+ $vclose 50$;\r
+}\r
+.\r
projects / mirror_edk2.git / blobdiff