diff options
Diffstat (limited to 'UnixPkg/Sec/SecMain.c')
| -rw-r--r-- | UnixPkg/Sec/SecMain.c | 1340 |
1 files changed, 0 insertions, 1340 deletions
diff --git a/UnixPkg/Sec/SecMain.c b/UnixPkg/Sec/SecMain.c deleted file mode 100644 index f0627be39a..0000000000 --- a/UnixPkg/Sec/SecMain.c +++ /dev/null @@ -1,1340 +0,0 @@ -/*++ - -Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR> -Portions copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR> -This program and the accompanying materials -are licensed and made available under the terms and conditions of the BSD License -which accompanies this distribution. The full text of the license may be found at -http://opensource.org/licenses/bsd-license.php - -THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, -WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. - -Module Name: - - SecMain.c - -Abstract: - Unix emulator of SEC phase. It's really a Posix application, but this is - Ok since all the other modules for NT32 are NOT Posix applications. - - This program processes host environment variables and figures out - what the memory layout will be, how may FD's will be loaded and also - what the boot mode is. - - The SEC registers a set of services with the SEC core. gPrivateDispatchTable - is a list of PPI's produced by the SEC that are availble for usage in PEI. - - This code produces 128 K of temporary memory for the PEI stack by opening a - host file and mapping it directly to memory addresses. - - The system.cmd script is used to set host environment variables that drive - the configuration opitons of the SEC. - ---*/ - -#include "SecMain.h" -#include <sys/mman.h> -#include <Ppi/UnixPeiLoadFile.h> -#include <Ppi/TemporaryRamSupport.h> -#include <dlfcn.h> - -#ifdef __APPLE__ -#define MAP_ANONYMOUS MAP_ANON -char *gGdbWorkingFileName = NULL; -#endif - - -// -// Globals -// -#if defined(__APPLE__) || defined(MDE_CPU_X64) -UNIX_PEI_LOAD_FILE_PPI mSecUnixLoadFilePpi = { GasketSecUnixPeiLoadFile }; -PEI_UNIX_AUTOSCAN_PPI mSecUnixAutoScanPpi = { GasketSecUnixPeiAutoScan }; -PEI_UNIX_THUNK_PPI mSecUnixThunkPpi = { GasketSecUnixUnixThunkAddress }; -EFI_PEI_PROGRESS_CODE_PPI mSecStatusCodePpi = { GasketSecPeiReportStatusCode }; -UNIX_FWH_PPI mSecFwhInformationPpi = { GasketSecUnixFdAddress }; -EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mSecTemporaryRamSupportPpi = { GasketSecTemporaryRamSupport }; -#else -UNIX_PEI_LOAD_FILE_PPI mSecUnixLoadFilePpi = { SecUnixPeiLoadFile }; -PEI_UNIX_AUTOSCAN_PPI mSecUnixAutoScanPpi = { SecUnixPeiAutoScan }; -PEI_UNIX_THUNK_PPI mSecUnixThunkPpi = { SecUnixUnixThunkAddress }; -EFI_PEI_PROGRESS_CODE_PPI mSecStatusCodePpi = { SecPeiReportStatusCode }; -UNIX_FWH_PPI mSecFwhInformationPpi = { SecUnixFdAddress }; -EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mSecTemporaryRamSupportPpi = { SecTemporaryRamSupport }; -#endif - -EFI_PEI_PPI_DESCRIPTOR gPrivateDispatchTable[] = { - { - EFI_PEI_PPI_DESCRIPTOR_PPI, - &gUnixPeiLoadFilePpiGuid, - &mSecUnixLoadFilePpi - }, - { - EFI_PEI_PPI_DESCRIPTOR_PPI, - &gPeiUnixAutoScanPpiGuid, - &mSecUnixAutoScanPpi - }, - { - EFI_PEI_PPI_DESCRIPTOR_PPI, - &gPeiUnixThunkPpiGuid, - &mSecUnixThunkPpi - }, - { - EFI_PEI_PPI_DESCRIPTOR_PPI, - &gEfiPeiStatusCodePpiGuid, - &mSecStatusCodePpi - }, - { - EFI_PEI_PPI_DESCRIPTOR_PPI, - &gEfiTemporaryRamSupportPpiGuid, - &mSecTemporaryRamSupportPpi - }, - { - EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST, - &gUnixFwhPpiGuid, - &mSecFwhInformationPpi - } -}; - - -// -// Default information about where the FD is located. -// This array gets filled in with information from EFI_FIRMWARE_VOLUMES -// EFI_FIRMWARE_VOLUMES is a host environment variable set by system.cmd. -// The number of array elements is allocated base on parsing -// EFI_FIRMWARE_VOLUMES and the memory is never freed. -// -UINTN gFdInfoCount = 0; -UNIX_FD_INFO *gFdInfo; - -// -// Array that supports seperate memory rantes. -// The memory ranges are set in system.cmd via the EFI_MEMORY_SIZE variable. -// The number of array elements is allocated base on parsing -// EFI_MEMORY_SIZE and the memory is never freed. -// -UINTN gSystemMemoryCount = 0; -UNIX_SYSTEM_MEMORY *gSystemMemory; - - - -UINTN mImageContextModHandleArraySize = 0; -IMAGE_CONTEXT_TO_MOD_HANDLE *mImageContextModHandleArray = NULL; - - -VOID -EFIAPI -SecSwitchStack ( - UINT32 TemporaryMemoryBase, - UINT32 PermenentMemoryBase - ); - -EFI_PHYSICAL_ADDRESS * -MapMemory ( - INTN fd, - UINT64 length, - INTN prot, - INTN flags); - -EFI_STATUS -MapFile ( - IN CHAR8 *FileName, - IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, - OUT UINT64 *Length - ); - -EFI_STATUS -EFIAPI -SecNt32PeCoffRelocateImage ( - IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext - ); - - -int -main ( - IN int Argc, - IN char **Argv, - IN char **Envp - ) -/*++ - -Routine Description: - Main entry point to SEC for Unix. This is a unix program - -Arguments: - Argc - Number of command line arguments - Argv - Array of command line argument strings - Envp - Array of environmemt variable strings - -Returns: - 0 - Normal exit - 1 - Abnormal exit - ---*/ -{ - EFI_STATUS Status; - EFI_PHYSICAL_ADDRESS InitialStackMemory; - UINT64 InitialStackMemorySize; - UINTN Index; - UINTN Index1; - UINTN Index2; - UINTN PeiIndex; - CHAR8 *FileName; - BOOLEAN Done; - VOID *PeiCoreFile; - CHAR16 *MemorySizeStr; - CHAR16 *FirmwareVolumesStr; - UINTN *StackPointer; - - setbuf(stdout, 0); - setbuf(stderr, 0); - - MemorySizeStr = (CHAR16 *) PcdGetPtr (PcdUnixMemorySizeForSecMain); - FirmwareVolumesStr = (CHAR16 *) PcdGetPtr (PcdUnixFirmwareVolume); - - printf ("\nEDK SEC Main UNIX Emulation Environment from edk2.sourceforge.net\n"); - -#ifdef __APPLE__ - // - // We can't use dlopen on OS X, so we need a scheme to get symboles into gdb - // We need to create a temp file that contains gdb commands so we can load - // symbols when we load every PE/COFF image. - // - Index = strlen (*Argv); - gGdbWorkingFileName = malloc (Index + strlen(".gdb") + 1); - strcpy (gGdbWorkingFileName, *Argv); - strcat (gGdbWorkingFileName, ".gdb"); -#endif - - - // - // Allocate space for gSystemMemory Array - // - gSystemMemoryCount = CountSeperatorsInString (MemorySizeStr, '!') + 1; - gSystemMemory = calloc (gSystemMemoryCount, sizeof (UNIX_SYSTEM_MEMORY)); - if (gSystemMemory == NULL) { - printf ("ERROR : Can not allocate memory for system. Exiting.\n"); - exit (1); - } - // - // Allocate space for gSystemMemory Array - // - gFdInfoCount = CountSeperatorsInString (FirmwareVolumesStr, '!') + 1; - gFdInfo = calloc (gFdInfoCount, sizeof (UNIX_FD_INFO)); - if (gFdInfo == NULL) { - printf ("ERROR : Can not allocate memory for fd info. Exiting.\n"); - exit (1); - } - // - // Setup Boot Mode. If BootModeStr == "" then BootMode = 0 (BOOT_WITH_FULL_CONFIGURATION) - // - printf (" BootMode 0x%02x\n", (unsigned int)PcdGet32 (PcdUnixBootMode)); - - // - // Open up a 128K file to emulate temp memory for PEI. - // on a real platform this would be SRAM, or using the cache as RAM. - // Set InitialStackMemory to zero so UnixOpenFile will allocate a new mapping - // - InitialStackMemorySize = STACK_SIZE; - InitialStackMemory = (UINTN)MapMemory(0, - (UINT32) InitialStackMemorySize, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_ANONYMOUS | MAP_PRIVATE); - if (InitialStackMemory == 0) { - printf ("ERROR : Can not open SecStack Exiting\n"); - exit (1); - } - - printf (" SEC passing in %u KB of temp RAM at 0x%08lx to PEI\n", - (unsigned int)(InitialStackMemorySize / 1024), - (unsigned long)InitialStackMemory); - - for (StackPointer = (UINTN*) (UINTN) InitialStackMemory; - StackPointer < (UINTN*)(UINTN)((UINTN) InitialStackMemory + (UINT64) InitialStackMemorySize); - StackPointer ++) { - *StackPointer = 0x5AA55AA5; - } - - // - // Open All the firmware volumes and remember the info in the gFdInfo global - // - FileName = (CHAR8 *)malloc (StrLen (FirmwareVolumesStr) + 1); - if (FileName == NULL) { - printf ("ERROR : Can not allocate memory for firmware volume string\n"); - exit (1); - } - - Index2 = 0; - for (Done = FALSE, Index = 0, PeiIndex = 0, PeiCoreFile = NULL; - FirmwareVolumesStr[Index2] != 0; - Index++) { - for (Index1 = 0; (FirmwareVolumesStr[Index2] != '!') && (FirmwareVolumesStr[Index2] != 0); Index2++) - FileName[Index1++] = FirmwareVolumesStr[Index2]; - if (FirmwareVolumesStr[Index2] == '!') - Index2++; - FileName[Index1] = '\0'; - - // - // Open the FD and remmeber where it got mapped into our processes address space - // - Status = MapFile ( - FileName, - &gFdInfo[Index].Address, - &gFdInfo[Index].Size - ); - if (EFI_ERROR (Status)) { - printf ("ERROR : Can not open Firmware Device File %s (%x). Exiting.\n", FileName, (unsigned int)Status); - exit (1); - } - - printf (" FD loaded from %s at 0x%08lx", - FileName, (unsigned long)gFdInfo[Index].Address); - - if (PeiCoreFile == NULL) { - // - // Assume the beginning of the FD is an FV and look for the PEI Core. - // Load the first one we find. - // - Status = SecFfsFindPeiCore ((EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) gFdInfo[Index].Address, &PeiCoreFile); - if (!EFI_ERROR (Status)) { - PeiIndex = Index; - printf (" contains SEC Core"); - } - } - - printf ("\n"); - } - // - // Calculate memory regions and store the information in the gSystemMemory - // global for later use. The autosizing code will use this data to - // map this memory into the SEC process memory space. - // - Index1 = 0; - Index = 0; - while (1) { - UINTN val = 0; - // - // Save the size of the memory. - // - while (MemorySizeStr[Index1] >= '0' && MemorySizeStr[Index1] <= '9') { - val = val * 10 + MemorySizeStr[Index1] - '0'; - Index1++; - } - gSystemMemory[Index++].Size = val * 0x100000; - if (MemorySizeStr[Index1] == 0) - break; - Index1++; - } - - printf ("\n"); - - // - // Hand off to PEI Core - // - SecLoadFromCore ((UINTN) InitialStackMemory, (UINTN) InitialStackMemorySize, (UINTN) gFdInfo[0].Address, PeiCoreFile); - - // - // If we get here, then the PEI Core returned. This is an error as PEI should - // always hand off to DXE. - // - printf ("ERROR : PEI Core returned\n"); - exit (1); -} - -EFI_PHYSICAL_ADDRESS * -MapMemory ( - INTN fd, - UINT64 length, - INTN prot, - INTN flags) -{ - STATIC UINTN base = 0x40000000; - CONST UINTN align = (1 << 24); - VOID *res = NULL; - BOOLEAN isAligned = 0; - - // - // Try to get an aligned block somewhere in the address space of this - // process. - // - while((!isAligned) && (base != 0)) { - res = mmap ((void *)base, length, prot, flags, fd, 0); - if (res == MAP_FAILED) { - return NULL; - } - if ((((UINTN)res) & ~(align-1)) == (UINTN)res) { - isAligned=1; - } - else { - munmap(res, length); - base += align; - } - } - return res; -} - -EFI_STATUS -MapFile ( - IN CHAR8 *FileName, - IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, - OUT UINT64 *Length - ) -/*++ - -Routine Description: - Opens and memory maps a file using Unix services. If BaseAddress is non zero - the process will try and allocate the memory starting at BaseAddress. - -Arguments: - FileName - The name of the file to open and map - MapSize - The amount of the file to map in bytes - CreationDisposition - The flags to pass to CreateFile(). Use to create new files for - memory emulation, and exiting files for firmware volume emulation - BaseAddress - The base address of the mapped file in the user address space. - If passed in as NULL the a new memory region is used. - If passed in as non NULL the request memory region is used for - the mapping of the file into the process space. - Length - The size of the mapped region in bytes - -Returns: - EFI_SUCCESS - The file was opened and mapped. - EFI_NOT_FOUND - FileName was not found in the current directory - EFI_DEVICE_ERROR - An error occured attempting to map the opened file - ---*/ -{ - int fd; - VOID *res; - UINTN FileSize; - - fd = open (FileName, O_RDONLY); - if (fd < 0) - return EFI_NOT_FOUND; - FileSize = lseek (fd, 0, SEEK_END); - -#if 0 - if (IsMain) - { - /* Read entry address. */ - lseek (fd, FileSize - 0x20, SEEK_SET); - if (read (fd, &EntryAddress, 4) != 4) - { - close (fd); - return EFI_DEVICE_ERROR; - } - } -#endif - - res = MapMemory(fd, FileSize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE); - - close (fd); - - if (res == MAP_FAILED) - return EFI_DEVICE_ERROR; - - *Length = (UINT64) FileSize; - *BaseAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) res; - - return EFI_SUCCESS; -} - -#define BYTES_PER_RECORD 512 - -EFI_STATUS -EFIAPI -SecPeiReportStatusCode ( - IN CONST EFI_PEI_SERVICES **PeiServices, - IN EFI_STATUS_CODE_TYPE CodeType, - IN EFI_STATUS_CODE_VALUE Value, - IN UINT32 Instance, - IN CONST EFI_GUID *CallerId, - IN CONST EFI_STATUS_CODE_DATA *Data OPTIONAL - ) -/*++ - -Routine Description: - - This routine produces the ReportStatusCode PEI service. It's passed - up to the PEI Core via a PPI. T - - This code currently uses the UNIX clib printf. This does not work the same way - as the EFI Print (), as %t, %g, %s as Unicode are not supported. - -Arguments: - (see EFI_PEI_REPORT_STATUS_CODE) - -Returns: - EFI_SUCCESS - Always return success - ---*/ -// TODO: PeiServices - add argument and description to function comment -// TODO: CodeType - add argument and description to function comment -// TODO: Value - add argument and description to function comment -// TODO: Instance - add argument and description to function comment -// TODO: CallerId - add argument and description to function comment -// TODO: Data - add argument and description to function comment -{ - CHAR8 *Format; - BASE_LIST Marker; - CHAR8 PrintBuffer[BYTES_PER_RECORD * 2]; - CHAR8 *Filename; - CHAR8 *Description; - UINT32 LineNumber; - UINT32 ErrorLevel; - - - if (Data == NULL) { - } else if (ReportStatusCodeExtractAssertInfo (CodeType, Value, Data, &Filename, &Description, &LineNumber)) { - // - // Processes ASSERT () - // - printf ("ASSERT %s(%d): %s\n", Filename, (int)LineNumber, Description); - - } else if (ReportStatusCodeExtractDebugInfo (Data, &ErrorLevel, &Marker, &Format)) { - // - // Process DEBUG () macro - // - AsciiBSPrint (PrintBuffer, BYTES_PER_RECORD, Format, Marker); - printf ("%s", PrintBuffer); - } - - return EFI_SUCCESS; -} - -VOID -EFIAPI -PeiSwitchStacks ( - IN SWITCH_STACK_ENTRY_POINT EntryPoint, - IN VOID *Context1, OPTIONAL - IN VOID *Context2, OPTIONAL - IN VOID *Context3, OPTIONAL - IN VOID *NewStack - ); - -VOID -SecLoadFromCore ( - IN UINTN LargestRegion, - IN UINTN LargestRegionSize, - IN UINTN BootFirmwareVolumeBase, - IN VOID *PeiCorePe32File - ) -/*++ - -Routine Description: - This is the service to load the PEI Core from the Firmware Volume - -Arguments: - LargestRegion - Memory to use for PEI. - LargestRegionSize - Size of Memory to use for PEI - BootFirmwareVolumeBase - Start of the Boot FV - PeiCorePe32File - PEI Core PE32 - -Returns: - Success means control is transfered and thus we should never return - ---*/ -{ - EFI_STATUS Status; - EFI_PHYSICAL_ADDRESS TopOfMemory; - VOID *TopOfStack; - UINT64 PeiCoreSize; - EFI_PHYSICAL_ADDRESS PeiCoreEntryPoint; - EFI_PHYSICAL_ADDRESS PeiImageAddress; - EFI_SEC_PEI_HAND_OFF *SecCoreData; - UINTN PeiStackSize; - EFI_PEI_PPI_DESCRIPTOR *DispatchTable; - UINTN DispatchTableSize; - - // - // Compute Top Of Memory for Stack and PEI Core Allocations - // - TopOfMemory = LargestRegion + LargestRegionSize; - PeiStackSize = (UINTN)RShiftU64((UINT64)STACK_SIZE,1); - - // - // |-----------| <---- TemporaryRamBase + TemporaryRamSize - // | Heap | - // | | - // |-----------| <---- StackBase / PeiTemporaryMemoryBase - // | | - // | Stack | - // |-----------| <---- TemporaryRamBase - // - TopOfStack = (VOID *)(LargestRegion + PeiStackSize); - TopOfMemory = LargestRegion + PeiStackSize; - - // - // Reservet space for storing PeiCore's parament in stack. - // - TopOfStack = (VOID *)((UINTN)TopOfStack - sizeof (EFI_SEC_PEI_HAND_OFF) - CPU_STACK_ALIGNMENT); - TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT); - - - // - // Bind this information into the SEC hand-off state - // - SecCoreData = (EFI_SEC_PEI_HAND_OFF*)(UINTN) TopOfStack; - SecCoreData->DataSize = sizeof(EFI_SEC_PEI_HAND_OFF); - SecCoreData->BootFirmwareVolumeBase = (VOID*)BootFirmwareVolumeBase; - SecCoreData->BootFirmwareVolumeSize = PcdGet32 (PcdUnixFirmwareFdSize); - SecCoreData->TemporaryRamBase = (VOID*)(UINTN)LargestRegion; - SecCoreData->TemporaryRamSize = STACK_SIZE; - SecCoreData->StackBase = SecCoreData->TemporaryRamBase; - SecCoreData->StackSize = PeiStackSize; - SecCoreData->PeiTemporaryRamBase = (VOID*) ((UINTN) SecCoreData->TemporaryRamBase + PeiStackSize); - SecCoreData->PeiTemporaryRamSize = STACK_SIZE - PeiStackSize; - - // - // Load the PEI Core from a Firmware Volume - // - Status = SecUnixPeiLoadFile ( - PeiCorePe32File, - &PeiImageAddress, - &PeiCoreSize, - &PeiCoreEntryPoint - ); - if (EFI_ERROR (Status)) { - return ; - } - - DispatchTableSize = sizeof (gPrivateDispatchTable); - DispatchTableSize += OverrideDispatchTableExtraSize (); - - DispatchTable = malloc (DispatchTableSize); - if (DispatchTable == NULL) { - return; - } - - // - // Allow an override for extra PPIs to be passed up to PEI - // This is an easy way to enable OS specific customizations - // - OverrideDispatchTable (&gPrivateDispatchTable[0], sizeof (gPrivateDispatchTable), DispatchTable, DispatchTableSize); - - // - // Transfer control to the PEI Core - // - PeiSwitchStacks ( - (SWITCH_STACK_ENTRY_POINT) (UINTN) PeiCoreEntryPoint, - SecCoreData, - (VOID *)DispatchTable, - NULL, - TopOfStack - ); - // - // If we get here, then the PEI Core returned. This is an error - // - return ; -} - -EFI_STATUS -EFIAPI -SecUnixPeiAutoScan ( - IN UINTN Index, - OUT EFI_PHYSICAL_ADDRESS *MemoryBase, - OUT UINT64 *MemorySize - ) -/*++ - -Routine Description: - This service is called from Index == 0 until it returns EFI_UNSUPPORTED. - It allows discontiguous memory regions to be supported by the emulator. - It uses gSystemMemory[] and gSystemMemoryCount that were created by - parsing the host environment variable EFI_MEMORY_SIZE. - The size comes from the varaible and the address comes from the call to - UnixOpenFile. - -Arguments: - Index - Which memory region to use - MemoryBase - Return Base address of memory region - MemorySize - Return size in bytes of the memory region - -Returns: - EFI_SUCCESS - If memory region was mapped - EFI_UNSUPPORTED - If Index is not supported - ---*/ -{ - void *res; - - if (Index >= gSystemMemoryCount) { - return EFI_UNSUPPORTED; - } - - *MemoryBase = 0; - res = MapMemory(0, gSystemMemory[Index].Size, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS); - if (res == MAP_FAILED) - return EFI_DEVICE_ERROR; - *MemorySize = gSystemMemory[Index].Size; - *MemoryBase = (UINTN)res; - gSystemMemory[Index].Memory = *MemoryBase; - - return EFI_SUCCESS; -} - -VOID * -EFIAPI -SecUnixUnixThunkAddress ( - VOID - ) -/*++ - -Routine Description: - Since the SEC is the only Unix program in stack it must export - an interface to do POSIX calls. gUnix is initailized in UnixThunk.c. - -Arguments: - InterfaceSize - sizeof (EFI_WIN_NT_THUNK_PROTOCOL); - InterfaceBase - Address of the gUnix global - -Returns: - EFI_SUCCESS - Data returned - ---*/ -{ - return gUnix; -} - - -EFI_STATUS -SecUnixPeiLoadFile ( - IN VOID *Pe32Data, - OUT EFI_PHYSICAL_ADDRESS *ImageAddress, - OUT UINT64 *ImageSize, - OUT EFI_PHYSICAL_ADDRESS *EntryPoint - ) -/*++ - -Routine Description: - Loads and relocates a PE/COFF image into memory. - -Arguments: - Pe32Data - The base address of the PE/COFF file that is to be loaded and relocated - ImageAddress - The base address of the relocated PE/COFF image - ImageSize - The size of the relocated PE/COFF image - EntryPoint - The entry point of the relocated PE/COFF image - -Returns: - EFI_SUCCESS - The file was loaded and relocated - EFI_OUT_OF_RESOURCES - There was not enough memory to load and relocate the PE/COFF file - ---*/ -{ - EFI_STATUS Status; - PE_COFF_LOADER_IMAGE_CONTEXT ImageContext; - - ZeroMem (&ImageContext, sizeof (ImageContext)); - ImageContext.Handle = Pe32Data; - - ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE) SecImageRead; - - Status = PeCoffLoaderGetImageInfo (&ImageContext); - if (EFI_ERROR (Status)) { - return Status; - } - - - // - // Allocate space in UNIX (not emulator) memory. Extra space is for alignment - // - ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) MapMemory ( - 0, - (UINT32) (ImageContext.ImageSize + (ImageContext.SectionAlignment * 2)), - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_ANONYMOUS | MAP_PRIVATE - ); - if (ImageContext.ImageAddress == 0) { - return EFI_OUT_OF_RESOURCES; - } - - // - // Align buffer on section boundry - // - ImageContext.ImageAddress += ImageContext.SectionAlignment - 1; - ImageContext.ImageAddress &= ~((EFI_PHYSICAL_ADDRESS)(ImageContext.SectionAlignment - 1)); - - - Status = PeCoffLoaderLoadImage (&ImageContext); - if (EFI_ERROR (Status)) { - return Status; - } - - Status = PeCoffLoaderRelocateImage (&ImageContext); - if (EFI_ERROR (Status)) { - return Status; - } - - - SecPeCoffRelocateImageExtraAction (&ImageContext); - - // - // BugBug: Flush Instruction Cache Here when CPU Lib is ready - // - - *ImageAddress = ImageContext.ImageAddress; - *ImageSize = ImageContext.ImageSize; - *EntryPoint = ImageContext.EntryPoint; - - return EFI_SUCCESS; -} - - -RETURN_STATUS -EFIAPI -SecPeCoffGetEntryPoint ( - IN VOID *Pe32Data, - IN OUT VOID **EntryPoint - ) -{ - EFI_STATUS Status; - EFI_PHYSICAL_ADDRESS ImageAddress; - UINT64 ImageSize; - EFI_PHYSICAL_ADDRESS PhysEntryPoint; - - Status = SecUnixPeiLoadFile (Pe32Data, &ImageAddress, &ImageSize, &PhysEntryPoint); - - *EntryPoint = (VOID *)(UINTN)PhysEntryPoint; - return Status; -} - - - -EFI_STATUS -EFIAPI -SecUnixFdAddress ( - IN UINTN Index, - IN OUT EFI_PHYSICAL_ADDRESS *FdBase, - IN OUT UINT64 *FdSize, - IN OUT EFI_PHYSICAL_ADDRESS *FixUp - ) -/*++ - -Routine Description: - Return the FD Size and base address. Since the FD is loaded from a - file into host memory only the SEC will know it's address. - -Arguments: - Index - Which FD, starts at zero. - FdSize - Size of the FD in bytes - FdBase - Start address of the FD. Assume it points to an FV Header - FixUp - Difference between actual FD address and build address - -Returns: - EFI_SUCCESS - Return the Base address and size of the FV - EFI_UNSUPPORTED - Index does nto map to an FD in the system - ---*/ -{ - if (Index >= gFdInfoCount) { - return EFI_UNSUPPORTED; - } - - *FdBase = gFdInfo[Index].Address; - *FdSize = gFdInfo[Index].Size; - *FixUp = 0; - - if (*FdBase == 0 && *FdSize == 0) { - return EFI_UNSUPPORTED; - } - - if (Index == 0) { - // - // FD 0 has XIP code and well known PCD values - // If the memory buffer could not be allocated at the FD build address - // the Fixup is the difference. - // - *FixUp = *FdBase - PcdGet64 (PcdUnixFdBaseAddress); - } - - return EFI_SUCCESS; -} - -EFI_STATUS -EFIAPI -SecImageRead ( - IN VOID *FileHandle, - IN UINTN FileOffset, - IN OUT UINTN *ReadSize, - OUT VOID *Buffer - ) -/*++ - -Routine Description: - Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file - -Arguments: - FileHandle - The handle to the PE/COFF file - FileOffset - The offset, in bytes, into the file to read - ReadSize - The number of bytes to read from the file starting at FileOffset - Buffer - A pointer to the buffer to read the data into. - -Returns: - EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset - ---*/ -{ - CHAR8 *Destination8; - CHAR8 *Source8; - UINTN Length; - - Destination8 = Buffer; - Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset); - Length = *ReadSize; - while (Length--) { - *(Destination8++) = *(Source8++); - } - - return EFI_SUCCESS; -} - -UINTN -CountSeperatorsInString ( - IN const CHAR16 *String, - IN CHAR16 Seperator - ) -/*++ - -Routine Description: - Count the number of seperators in String - -Arguments: - String - String to process - Seperator - Item to count - -Returns: - Number of Seperator in String - ---*/ -{ - UINTN Count; - - for (Count = 0; *String != '\0'; String++) { - if (*String == Seperator) { - Count++; - } - } - - return Count; -} - - -EFI_STATUS -AddHandle ( - IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext, - IN VOID *ModHandle - ) -/*++ - -Routine Description: - Store the ModHandle in an array indexed by the Pdb File name. - The ModHandle is needed to unload the image. - -Arguments: - ImageContext - Input data returned from PE Laoder Library. Used to find the - .PDB file name of the PE Image. - ModHandle - Returned from LoadLibraryEx() and stored for call to - FreeLibrary(). - -Returns: - EFI_SUCCESS - ModHandle was stored. - ---*/ -{ - UINTN Index; - IMAGE_CONTEXT_TO_MOD_HANDLE *Array; - UINTN PreviousSize; - - - Array = mImageContextModHandleArray; - for (Index = 0; Index < mImageContextModHandleArraySize; Index++, Array++) { - if (Array->ImageContext == NULL) { - // - // Make a copy of the stirng and store the ModHandle - // - Array->ImageContext = ImageContext; - Array->ModHandle = ModHandle; - return EFI_SUCCESS; - } - } - - // - // No free space in mImageContextModHandleArray so grow it by - // IMAGE_CONTEXT_TO_MOD_HANDLE entires. realloc will - // copy the old values to the new locaiton. But it does - // not zero the new memory area. - // - PreviousSize = mImageContextModHandleArraySize * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE); - mImageContextModHandleArraySize += MAX_IMAGE_CONTEXT_TO_MOD_HANDLE_ARRAY_SIZE; - - mImageContextModHandleArray = realloc (mImageContextModHandleArray, mImageContextModHandleArraySize * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE)); - if (mImageContextModHandleArray == NULL) { - ASSERT (FALSE); - return EFI_OUT_OF_RESOURCES; - } - - memset (mImageContextModHandleArray + PreviousSize, 0, MAX_IMAGE_CONTEXT_TO_MOD_HANDLE_ARRAY_SIZE * sizeof (IMAGE_CONTEXT_TO_MOD_HANDLE)); - - return AddHandle (ImageContext, ModHandle); -} - - -VOID * -RemoveHandle ( - IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext - ) -/*++ - -Routine Description: - Return the ModHandle and delete the entry in the array. - -Arguments: - ImageContext - Input data returned from PE Laoder Library. Used to find the - .PDB file name of the PE Image. - -Returns: - ModHandle - ModHandle assoicated with ImageContext is returned - NULL - No ModHandle associated with ImageContext - ---*/ -{ - UINTN Index; - IMAGE_CONTEXT_TO_MOD_HANDLE *Array; - - if (ImageContext->PdbPointer == NULL) { - // - // If no PDB pointer there is no ModHandle so return NULL - // - return NULL; - } - - Array = mImageContextModHandleArray; - for (Index = 0; Index < mImageContextModHandleArraySize; Index++, Array++) { - if (Array->ImageContext == ImageContext) { - // - // If you find a match return it and delete the entry - // - Array->ImageContext = NULL; - return Array->ModHandle; - } - } - - return NULL; -} - - - -// -// Target for gdb breakpoint in a script that uses gGdbWorkingFileName to source a -// add-symbol-file command. Hey what can you say scripting in gdb is not that great.... -// -// Put .gdbinit in the CWD where you do gdb SecMain.dll for source level debug -// -// cat .gdbinit -// b SecGdbScriptBreak -// command -// silent -// source SecMain.dll.gdb -// c -// end -// -VOID -SecGdbScriptBreak ( - VOID - ) -{ -} - -VOID -SecUnixLoaderBreak ( - VOID - ) -{ -} - -BOOLEAN -IsPdbFile ( - IN CHAR8 *PdbFileName - ) -{ - UINTN Len; - - if (PdbFileName == NULL) { - return FALSE; - } - - Len = strlen (PdbFileName); - if ((Len < 5)|| (PdbFileName[Len - 4] != '.')) { - return FALSE; - } - - if ((PdbFileName[Len - 3] == 'D' || PdbFileName[Len - 3] == 'd') && - (PdbFileName[Len - 2] == 'L' || PdbFileName[Len - 2] == 'l') && - (PdbFileName[Len - 1] == 'L' || PdbFileName[Len - 1] == 'l')) { - return TRUE; - } - - return FALSE; -} - - -#define MAX_SPRINT_BUFFER_SIZE 0x200 - -void -PrintLoadAddress ( - IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext - ) -{ - if (ImageContext->PdbPointer == NULL) { - fprintf (stderr, - "0x%08lx Loading NO DEBUG with entry point 0x%08lx\n", - (unsigned long)(ImageContext->ImageAddress), - (unsigned long)ImageContext->EntryPoint - ); - } else { - fprintf (stderr, - "0x%08lx Loading %s with entry point 0x%08lx\n", - (unsigned long)(ImageContext->ImageAddress + ImageContext->SizeOfHeaders), - ImageContext->PdbPointer, - (unsigned long)ImageContext->EntryPoint - ); - } - // Keep output synced up - fflush (stderr); -} - - -VOID -EFIAPI -SecPeCoffRelocateImageExtraAction ( - IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext - ) -{ - -#ifdef __APPLE__ - BOOLEAN EnabledOnEntry; - - // - // Make sure writting of the file is an atomic operation - // - if (UnixInterruptEanbled ()) { - UnixDisableInterrupt (); - EnabledOnEntry = TRUE; - } else { - EnabledOnEntry = FALSE; - } - - PrintLoadAddress (ImageContext); - - // - // In mach-o (OS X executable) dlopen() can only load files in the MH_DYLIB of MH_BUNDLE format. - // To convert to PE/COFF we need to construct a mach-o with the MH_PRELOAD format. We create - // .dSYM files for the PE/COFF images that can be used by gdb for source level debugging. - // - FILE *GdbTempFile; - - // - // In the Mach-O to PE/COFF conversion the size of the PE/COFF headers is not accounted for. - // Thus we need to skip over the PE/COFF header when giving load addresses for our symbol table. - // - if (ImageContext->PdbPointer != NULL && !IsPdbFile (ImageContext->PdbPointer)) { - // - // Now we have a database of the images that are currently loaded - // - - // - // 'symbol-file' will clear out currnet symbol mappings in gdb. - // you can do a 'add-symbol-file filename address' for every image we loaded to get source - // level debug in gdb. Note Sec, being a true application will work differently. - // - // We add the PE/COFF header size into the image as the mach-O does not have a header in - // loaded into system memory. - // - // This gives us a data base of gdb commands and after something is unloaded that entry will be - // removed. We don't yet have the scheme of how to comunicate with gdb, but we have the - // data base of info ready to roll. - // - // We could use qXfer:libraries:read, but OS X GDB does not currently support it. - // <library-list> - // <library name="/lib/libc.so.6"> // ImageContext->PdbPointer - // <segment address="0x10000000"/> // ImageContext->ImageAddress + ImageContext->SizeOfHeaders - // </library> - // </library-list> - // - - // - // Write the file we need for the gdb script - // - GdbTempFile = fopen (gGdbWorkingFileName, "w"); - if (GdbTempFile != NULL) { - fprintf (GdbTempFile, "add-symbol-file %s 0x%08lx\n", ImageContext->PdbPointer, (long unsigned int)(ImageContext->ImageAddress + ImageContext->SizeOfHeaders)); - fclose (GdbTempFile); - - // - // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to set a breakpoint. - // Hey what can you say scripting in gdb is not that great.... - // - SecGdbScriptBreak (); - } else { - ASSERT (FALSE); - } - - AddHandle (ImageContext, ImageContext->PdbPointer); - - if (EnabledOnEntry) { - UnixEnableInterrupt (); - } - - - } - -#else - - void *Handle = NULL; - void *Entry = NULL; - - if (ImageContext->PdbPointer == NULL) { - return; - } - - if (!IsPdbFile (ImageContext->PdbPointer)) { - return; - } - - fprintf (stderr, - "Loading %s 0x%08lx - entry point 0x%08lx\n", - ImageContext->PdbPointer, - (unsigned long)ImageContext->ImageAddress, - (unsigned long)ImageContext->EntryPoint); - - Handle = dlopen (ImageContext->PdbPointer, RTLD_NOW); - - if (Handle) { - Entry = dlsym (Handle, "_ModuleEntryPoint"); - } else { - printf("%s\n", dlerror()); - } - - if (Entry != NULL) { - ImageContext->EntryPoint = (UINTN)Entry; - printf("Change %s Entrypoint to :0x%08lx\n", ImageContext->PdbPointer, (unsigned long)Entry); - } - - SecUnixLoaderBreak (); - -#endif - - return; -} - - -VOID -EFIAPI -SecPeCoffLoaderUnloadImageExtraAction ( - IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext - ) -{ - VOID *Handle; - - Handle = RemoveHandle (ImageContext); - -#ifdef __APPLE__ - FILE *GdbTempFile; - BOOLEAN EnabledOnEntry; - - if (Handle != NULL) { - // - // Need to skip .PDB files created from VC++ - // - if (!IsPdbFile (ImageContext->PdbPointer)) { - if (UnixInterruptEanbled ()) { - UnixDisableInterrupt (); - EnabledOnEntry = TRUE; - } else { - EnabledOnEntry = FALSE; - } - - // - // Write the file we need for the gdb script - // - GdbTempFile = fopen (gGdbWorkingFileName, "w"); - if (GdbTempFile != NULL) { - fprintf (GdbTempFile, "remove-symbol-file %s\n", ImageContext->PdbPointer); - fclose (GdbTempFile); - - // - // Target for gdb breakpoint in a script that uses gGdbWorkingFileName to set a breakpoint. - // Hey what can you say scripting in gdb is not that great.... - // - SecGdbScriptBreak (); - } else { - ASSERT (FALSE); - } - - if (EnabledOnEntry) { - UnixEnableInterrupt (); - } - } - } - -#else - // - // Don't want to confuse gdb with symbols for something that got unloaded - // - if (Handle != NULL) { - dlclose (Handle); - } - -#endif - return; -} - -VOID -ModuleEntryPoint ( - VOID - ) -{ -} - -EFI_STATUS -EFIAPI -SecTemporaryRamSupport ( - IN CONST EFI_PEI_SERVICES **PeiServices, - IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase, - IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase, - IN UINTN CopySize - ) -{ - // - // Migrate the whole temporary memory to permenent memory. - // - CopyMem ( - (VOID*)(UINTN)PermanentMemoryBase, - (VOID*)(UINTN)TemporaryMemoryBase, - CopySize - ); - - // - // SecSwitchStack function must be invoked after the memory migration - // immediatly, also we need fixup the stack change caused by new call into - // permenent memory. - // - SecSwitchStack ( - (UINT32) TemporaryMemoryBase, - (UINT32) PermanentMemoryBase - ); - - // - // We need *not* fix the return address because currently, - // The PeiCore is excuted in flash. - // - - // - // Simulate to invalid temporary memory, terminate temporary memory - // - //ZeroMem ((VOID*)(UINTN)TemporaryMemoryBase, CopySize); - - return EFI_SUCCESS; -} |