Re: [edk2-devel] [edk2-staging/RISC-V PATCH v1 1/14]: BaseTools: Update EDK2 build tool for RISC-V platform

["Abner Chang" <abner.chang@hpe.com>]

> -----Original Message-----
> From: Jonathan Cameron [mailto:jonathan.cameron@huawei.com]
> Sent: Wednesday, August 28, 2019 5:00 PM
> To: Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>
> Cc: devel@edk2.groups.io
> Subject: Re: [edk2-devel] [edk2-staging/RISC-V PATCH v1 1/14]: BaseTools:
> Update EDK2 build tool for RISC-V platform
> 
> On Wed, 28 Aug 2019 08:43:10 +0000
> "Chang, Abner (HPS SW/FW Technologist)" <abner.chang@hpe.com> wrote:
> 
> > Thanks Jonathan, the cover letter and 3/14 patch were just sent.
> 
> Great.  So am I right in thinking these apply to:
> INVALID URI REMOVED
> 3A__github.com_tianocore_edk2-2Dstaging_tree_RISC-
> 2DV&d=DwICAg&c=C5b8zRQO1miGmBeVZ2LFWg&r=_SN6FZBN4Vgi4Ulkskz6
> qU3NYRO03nHp9P7Z5q59A3E&m=4xGwArhbyMMHxteOpv4UP8PJWPKah5H
> fR_X2Dl0H8vE&s=sCxw_Qm3DjjrX9vULVZYYw6jqhmQWygJP-B0Dltr6kc&e=  ?
> 
> Any plans to rebase that tree as it seems to be a few years old now?
Yes. we have plan to rebase it as you said this one is too old, will do it while edk2 devel review those patches ( includes edk2-platform/devel-rsicv patches)

Thanks

> 
> Thanks,
> 
> Jonathan
> 
> >
> > Abner
> >
> > > -----Original Message-----
> > > From: Jonathan Cameron [mailto:jonathan.cameron@huawei.com]
> > > Sent: Wednesday, August 28, 2019 4:18 PM
> > > To: Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>
> > > Cc: devel@edk2.groups.io
> > > Subject: Re: [edk2-devel] [edk2-staging/RISC-V PATCH v1 1/14]:
> BaseTools:
> > > Update EDK2 build tool for RISC-V platform
> > >
> > > Hi Abner,
> > >
> > > Just noticed in passing that this series doesn't seem to have a 3/14?
> > >
> > > Speaking personally it would be useful to have a cover letter with a
> > > quick summary of the series content.
> > >
> > > Thanks,
> > >
> > > Jonathan
> > >
> > > On Tue, 27 Aug 2019 14:00:19 +0800
> > > Abner Chang <abner.chang@hpe.com> wrote:
> > >
> > > > Elf64Convert.c
> > > > - Relocation process to hadnle below opcodes,
> > > >  * PCRELHI20
> > > >  * PCRELLO12
> > > >  * ADD32
> > > >  * SUB32
> > > >
> > > > GenFvInternalLib.c
> > > > - This atches jump instrcution at the position of first
> > > > instrcution fetched by
> > > RISC-V processor after Zeroth Stage Boot Loader (ZSBL).
> > > >
> > > > Contributed-under: TianoCore Contribution Agreement 1.0
> > > > Signed-off-by: Abner Chang <abner.chang@hpe.com>
> > > > ---
> > > >  BaseTools/Source/C/GenFv/GenFvInternalLib.c | 311
> > > > ++++++++++++------
> > > ----------
> > > >  BaseTools/Source/C/GenFw/Elf64Convert.c     |  68 ++++++
> > > >  2 files changed, 197 insertions(+), 182 deletions(-)
> > > >
> > > > diff --git a/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> > > > b/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> > > > index 01da00c..92abb7c 100644
> > > > --- a/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> > > > +++ b/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> > > > @@ -1956,157 +1956,6 @@ Returns:
> > > >    return EFI_UNSUPPORTED;
> > > >  }
> > > >
> > > > -EFI_STATUS
> > > > -UpdateRiscvResetVectorIfNeeded (
> > > > -  MEMORY_FILE            *FvImage,
> > > > -  FV_INFO                *FvInfo,
> > > > -  EFI_FFS_FILE_HEADER    *VtfFileImage
> > > > -  )
> > > > -/*++
> > > > -
> > > > -Routine Description:
> > > > -  This parses the FV looking for SEC and patches that address
> > > > into the
> > > > -  beginning of the FV header.
> > > > -
> > > > -  For RISC-V ISA, the reset vector is at 0xfff~ff00h or 200h
> > > > -
> > > > -Arguments:
> > > > -  FvImage       Memory file for the FV memory image/
> > > > -  FvInfo        Information read from INF file.
> > > > -  VtfFileImage  Instance of VTF file.
> > > > -
> > > > -Returns:
> > > > -
> > > > -  EFI_SUCCESS             Function Completed successfully.
> > > > -  EFI_ABORTED             Error encountered.
> > > > -  EFI_INVALID_PARAMETER   A required parameter was NULL.
> > > > -  EFI_NOT_FOUND           PEI Core file not found.
> > > > -
> > > > ---*/
> > > > -{
> > > > -  EFI_FFS_FILE_HEADER       *PeiCoreFile;
> > > > -  EFI_FFS_FILE_HEADER       *SecCoreFile;
> > > > -  EFI_STATUS                Status;
> > > > -  EFI_FILE_SECTION_POINTER  Pe32Section;
> > > > -  UINT32                    EntryPoint;
> > > > -  UINT32                    BaseOfCode;
> > > > -  UINT16                    MachineType;
> > > > -  EFI_PHYSICAL_ADDRESS      PeiCorePhysicalAddress;
> > > > -  EFI_PHYSICAL_ADDRESS      SecCorePhysicalAddress;
> > > > -  EFI_PHYSICAL_ADDRESS      TrapAddress;
> > > > -
> > > > -  //
> > > > -  // Verify input parameters
> > > > -  //
> > > > -  if (FvImage == NULL || FvInfo == NULL) {
> > > > -    Error (NULL, 0, 3000, "Invalid", "FvImage or FvInfo is NULL");
> > > > -    return EFI_INVALID_PARAMETER;
> > > > -  }
> > > > -  //
> > > > -  // Initialize FV library
> > > > -  //
> > > > -  InitializeFvLib (FvImage->FileImage, FvInfo->Size);
> > > > -
> > > > -  //
> > > > -  // Find the Sec Core
> > > > -  //
> > > > -  Status = GetFileByType (EFI_FV_FILETYPE_SECURITY_CORE, 1,
> > > > &SecCoreFile);
> > > > -  if (EFI_ERROR (Status) || SecCoreFile == NULL) {
> > > > -    //
> > > > -    // Maybe hardware does SEC job and we only have PEI Core?
> > > > -    //
> > > > -
> > > > -    //
> > > > -    // Find the PEI Core. It may not exist if SEC loads DXE core directly
> > > > -    //
> > > > -    PeiCorePhysicalAddress = 0;
> > > > -    Status = GetFileByType (EFI_FV_FILETYPE_PEI_CORE, 1,
> &PeiCoreFile);
> > > > -    if (!EFI_ERROR(Status) && PeiCoreFile != NULL) {
> > > > -      //
> > > > -      // PEI Core found, now find PE32 or TE section
> > > > -      //
> > > > -      Status = GetSectionByType (PeiCoreFile, EFI_SECTION_PE32, 1,
> > > &Pe32Section);
> > > > -      if (Status == EFI_NOT_FOUND) {
> > > > -        Status = GetSectionByType (PeiCoreFile, EFI_SECTION_TE, 1,
> > > &Pe32Section);
> > > > -      }
> > > > -
> > > > -      if (EFI_ERROR (Status)) {
> > > > -        Error (NULL, 0, 3000, "Invalid", "could not find either a PE32 or a TE
> > > section in PEI core file!");
> > > > -        return EFI_ABORTED;
> > > > -      }
> > > > -
> > > > -      Status = GetPe32Info (
> > > > -                (VOID *) ((UINTN) Pe32Section.Pe32Section +
> > > GetSectionHeaderLength(Pe32Section.CommonHeader)),
> > > > -                &EntryPoint,
> > > > -                &BaseOfCode,
> > > > -                &MachineType
> > > > -                );
> > > > -
> > > > -      if (EFI_ERROR (Status)) {
> > > > -        Error (NULL, 0, 3000, "Invalid", "could not get the PE32 entry point
> for
> > > the PEI core!");
> > > > -        return EFI_ABORTED;
> > > > -      }
> > > > -      //
> > > > -      // Physical address is FV base + offset of PE32 + offset of the entry
> > > point
> > > > -      //
> > > > -      PeiCorePhysicalAddress = FvInfo->BaseAddress;
> > > > -      PeiCorePhysicalAddress += (UINTN) Pe32Section.Pe32Section +
> > > GetSectionHeaderLength(Pe32Section.CommonHeader) - (UINTN)
> FvImage-
> > > >FileImage;
> > > > -      PeiCorePhysicalAddress += EntryPoint;
> > > > -      DebugMsg (NULL, 0, 9, "PeiCore physical entry point address",
> > > "Address = 0x%llX", (unsigned long long) PeiCorePhysicalAddress);
> > > > -      RiscvPatchVtf (VtfFileImage, (UINT32)PeiCorePhysicalAddress);
> > > > -    }
> > > > -    return EFI_SUCCESS;
> > > > -  }
> > > > -
> > > > -  //
> > > > -  // Sec Core found, now find PE32 section
> > > > -  //
> > > > -  Status = GetSectionByType (SecCoreFile, EFI_SECTION_PE32, 1,
> > > > &Pe32Section);
> > > > -  if (Status == EFI_NOT_FOUND) {
> > > > -    Status = GetSectionByType (SecCoreFile, EFI_SECTION_TE, 1,
> > > &Pe32Section);
> > > > -  }
> > > > -
> > > > -  if (EFI_ERROR (Status)) {
> > > > -    Error (NULL, 0, 3000, "Invalid", "could not find a PE32 section in the
> SEC
> > > core file.");
> > > > -    return EFI_ABORTED;
> > > > -  }
> > > > -
> > > > -  Status = GetPe32Info (
> > > > -            (VOID *) ((UINTN) Pe32Section.Pe32Section +
> > > GetSectionHeaderLength(Pe32Section.CommonHeader)),
> > > > -            &EntryPoint,
> > > > -            &BaseOfCode,
> > > > -            &MachineType
> > > > -            );
> > > > -  if (EFI_ERROR (Status)) {
> > > > -    Error (NULL, 0, 3000, "Invalid", "could not get the PE32 entry point for
> > > the SEC core.");
> > > > -    return EFI_ABORTED;
> > > > -  }
> > > > -
> > > > -  if ((MachineType != EFI_IMAGE_MACHINE_RISCV32) &&
> > > (MachineType != EFI_IMAGE_MACHINE_RISCV64)) {
> > > > -    //
> > > > -    // If SEC is not RISC-V we have nothing to do
> > > > -    //
> > > > -    return EFI_SUCCESS;
> > > > -  }
> > > > -
> > > > -  //
> > > > -  // Physical address is FV base + offset of PE32 + offset of the
> > > > entry point
> > > > -  //
> > > > -  SecCorePhysicalAddress = FvInfo->BaseAddress;
> > > > -  SecCorePhysicalAddress += (UINTN) Pe32Section.Pe32Section +
> > > > GetSectionHeaderLength(Pe32Section.CommonHeader) - (UINTN)
> > > > FvImage->FileImage;
> > > > -  SecCorePhysicalAddress += EntryPoint;
> > > > -  DebugMsg (NULL, 0, 0x14, "SecCore physical entry point
> > > > address", "Address = 0x%llX", (unsigned long long)
> > > > SecCorePhysicalAddress);
> > > > -  RiscvPatchVtf (VtfFileImage, (UINT32)SecCorePhysicalAddress);
> > > > -  //
> > > > -  // Update RISC-V trap handler.
> > > > -  //
> > > > -  TrapAddress = (UINTN) Pe32Section.Pe32Section +
> > > > GetSectionHeaderLength(Pe32Section.CommonHeader) + EntryPoint;
> > > > -  TrapAddress -= 40;
> > > > -  RiscvPatchVtfTrapHandler (VtfFileImage, TrapAddress);
> > > > -
> > > > -  DebugMsg (NULL, 0, 9, "Update Reset vector in FV Header",
> > > > NULL);
> > > > -  return EFI_SUCCESS;
> > > > -}
> > > >
> > > >  EFI_STATUS
> > > >  FindCorePeSection(
> > > > @@ -2581,6 +2430,106 @@ Returns:
> > > >  }
> > > >
> > > >  EFI_STATUS
> > > > +UpdateRiscvResetVectorIfNeeded (
> > > > +  MEMORY_FILE            *FvImage,
> > > > +  FV_INFO                *FvInfo
> > > > +  )
> > > > +/*++
> > > > +
> > > > +Routine Description:
> > > > +  This parses the FV looking for SEC and patches that address
> > > > +into the
> > > > +  beginning of the FV header.
> > > > +
> > > > +  For RISC-V ISA, the reset vector is at 0xfff~ff00h or 200h
> > > > +
> > > > +Arguments:
> > > > +  FvImage       Memory file for the FV memory image/
> > > > +  FvInfo        Information read from INF file.
> > > > +
> > > > +Returns:
> > > > +
> > > > +  EFI_SUCCESS             Function Completed successfully.
> > > > +  EFI_ABORTED             Error encountered.
> > > > +  EFI_INVALID_PARAMETER   A required parameter was NULL.
> > > > +  EFI_NOT_FOUND           PEI Core file not found.
> > > > +
> > > > +--*/
> > > > +{
> > > > +  EFI_STATUS                Status;
> > > > +  UINT16                    MachineType;
> > > > +  EFI_FILE_SECTION_POINTER  SecPe32;
> > > > +  EFI_PHYSICAL_ADDRESS      SecCoreEntryAddress;
> > > > +
> > > > +  UINT32 bSecCore;
> > > > +  UINT32 tmp;
> > > > +
> > > > +
> > > > +  //
> > > > +  // Verify input parameters
> > > > +  //
> > > > +  if (FvImage == NULL || FvInfo == NULL) {
> > > > +    return EFI_INVALID_PARAMETER;  }  //  // Initialize FV
> > > > + library  //  InitializeFvLib (FvImage->FileImage, FvInfo->Size);
> > > > +
> > > > +  //
> > > > +  // Find the Sec Core
> > > > +  //
> > > > +  Status = FindCorePeSection(FvImage->FileImage, FvInfo->Size,
> > > > + EFI_FV_FILETYPE_SECURITY_CORE, &SecPe32);
> > > > +  if(EFI_ERROR(Status)) {
> > > > +    printf("skip because Secutiry Core not found\n");
> > > > +    return EFI_SUCCESS;
> > > > +  }
> > > > +
> > > > +  DebugMsg (NULL, 0, 9, "Update SEC core in FV Header", NULL);
> > > > +
> > > > +  Status = GetCoreMachineType(SecPe32, &MachineType);
> > > > +  if(EFI_ERROR(Status)) {
> > > > +    Error(NULL, 0, 3000, "Invalid", "Could not get the PE32
> > > > + machine type for
> > > SEC core.");
> > > > +    return EFI_ABORTED;
> > > > +  }
> > > > +
> > > > +  if ((MachineType != EFI_IMAGE_MACHINE_RISCV32) &&
> > > (MachineType != EFI_IMAGE_MACHINE_RISCV64)) {
> > > > +    Error(NULL, 0, 3000, "Invalid", "Could not update SEC core
> > > > + because
> > > Machine type is not RiscV.");
> > > > +    return EFI_ABORTED;
> > > > +  }
> > > > +
> > > > +  Status = GetCoreEntryPointAddress(FvImage->FileImage, FvInfo,
> > > > + SecPe32, &SecCoreEntryAddress);
> > > > +  if(EFI_ERROR(Status)) {
> > > > +    Error(NULL, 0, 3000, "Invalid", "Could not get the PE32 entry
> > > > + point
> > > address for SEC Core.");
> > > > +    return EFI_ABORTED;
> > > > +  }
> > > > +
> > > > +  VerboseMsg("SecCore entry point Address = 0x%llX", (unsigned
> > > > + long
> > > > + long) SecCoreEntryAddress);  VerboseMsg("BaseAddress = 0x%llX",
> > > > + (unsigned long long) FvInfo->BaseAddress);  bSecCore =
> > > > + (SecCoreEntryAddress - FvInfo->BaseAddress);  VerboseMsg("offset
> > > > + = 0x%llX", bSecCore);
> > > > +
> > > > +  if(bSecCore > 0x0fffff) {
> > > > +    Error(NULL, 0, 3000, "Invalid", "SEC Entry point must be
> > > > + within 1MB of
> > > start of the FV");
> > > > +    return EFI_ABORTED;
> > > > +  }
> > > > +
> > > > +  tmp = bSecCore;
> > > > +  bSecCore = 0;
> > > > +  //J-type
> > > > +  bSecCore  = (tmp&0x100000)<<11; //imm[20]    at bit[31]
> > > > +  bSecCore |= (tmp&0x0007FE)<<20; //imm[10:1]  at bit[30:21]
> > > > +  bSecCore |= (tmp&0x000800)<<9;  //imm[11]    at bit[20]
> > > > +  bSecCore |= (tmp&0x0FF000);     //imm[19:12] at bit[19:12]
> > > > +  bSecCore |= 0x6F; //JAL opcode
> > > > +
> > > > +  memcpy(FvImage->FileImage, &bSecCore, sizeof(bSecCore));
> > > > +
> > > > +  return EFI_SUCCESS;
> > > > +}
> > > > +
> > > > +
> > > > +
> > > > +EFI_STATUS
> > > >  GetPe32Info (
> > > >    IN UINT8                  *Pe32,
> > > >    OUT UINT32                *EntryPoint,
> > > > @@ -3037,7 +2986,6 @@ Returns:
> > > >      FvHeader->Checksum      = 0;
> > > >      FvHeader->Checksum      = CalculateChecksum16 ((UINT16 *)
> FvHeader,
> > > FvHeader->HeaderLength / sizeof (UINT16));
> > > >    }
> > > > -
> > > >    //
> > > >    // Add files to FV
> > > >    //
> > > > @@ -3069,39 +3017,22 @@ Returns:
> > > >        goto Finish;
> > > >      }
> > > >
> > > > -    if (mRiscV) {
> > > > +    if (!mArm && !mRiscV) {
> > > >        //
> > > > -      // Update RISCV reset vector.
> > > > +      // Update reset vector (SALE_ENTRY for IPF)
> > > > +      // Now for IA32 and IA64 platform, the fv which has bsf
> > > > + file must have
> > > the
> > > > +      // EndAddress of 0xFFFFFFFF. Thus, only this type fv needs
> > > > + to update
> > > the
> > > > +      // reset vector. If the PEI Core is found, the VTF file will probably
> get
> > > > +      // corrupted by updating the entry point.
> > > >        //
> > > > -      DebugMsg (NULL, 0, INFO_LOG_LEVEL, "Update RISCV reset
> vector",
> > > NULL);
> > > > -      Status = UpdateRiscvResetVectorIfNeeded (&FvImageMemoryFile,
> > > &mFvDataInfo, VtfFileImage);
> > > > -      if (EFI_ERROR (Status)) {
> > > > -          Error (NULL, 0, 3000, "Invalid", "Could not update the reset vector
> for
> > > RISC-V.");
> > > > +      if ((mFvDataInfo.BaseAddress + mFvDataInfo.Size) ==
> > > FV_IMAGES_TOP_ADDRESS) {
> > > > +        Status = UpdateResetVector (&FvImageMemoryFile,
> > > > + &mFvDataInfo,
> > > VtfFileImage);
> > > > +        if (EFI_ERROR(Status)) {
> > > > +          Error (NULL, 0, 3000, "Invalid", "Could not update the
> > > > + reset vector.");
> > > >            goto Finish;
> > > > -      }
> > > > -      //
> > > > -      // Update Checksum for FvHeader
> > > > -      //
> > > > -      FvHeader->Checksum = 0;
> > > > -      FvHeader->Checksum = CalculateChecksum16 ((UINT16 *)
> FvHeader,
> > > FvHeader->HeaderLength / sizeof (UINT16));
> > > > -    } else {
> > > > -        if (!mArm) {
> > > > -          //
> > > > -          // Update reset vector (SALE_ENTRY for IPF)
> > > > -          // Now for IA32 and IA64 platform, the fv which has bsf file must
> have
> > > the
> > > > -          // EndAddress of 0xFFFFFFFF. Thus, only this type fv needs to
> update
> > > the
> > > > -          // reset vector. If the PEI Core is found, the VTF file will probably
> get
> > > > -          // corrupted by updating the entry point.
> > > > -          //
> > > > -          if ((mFvDataInfo.BaseAddress + mFvDataInfo.Size) ==
> > > FV_IMAGES_TOP_ADDRESS) {
> > > > -            Status = UpdateResetVector (&FvImageMemoryFile,
> &mFvDataInfo,
> > > VtfFileImage);
> > > > -            if (EFI_ERROR(Status)) {
> > > > -              Error (NULL, 0, 3000, "Invalid", "Could not update the reset
> > > vector.");
> > > > -              goto Finish;
> > > > -            }
> > > > -            DebugMsg (NULL, 0, 9, "Update Reset vector in VTF file", NULL);
> > > > -          }
> > > >          }
> > > > +        DebugMsg (NULL, 0, 9, "Update Reset vector in VTF file", NULL);
> > > > +      }
> > > >      }
> > > >    }
> > > >
> > > > @@ -3119,6 +3050,22 @@ Returns:
> > > >      FvHeader->Checksum = CalculateChecksum16 ((UINT16 *)
> > > > FvHeader,
> > > FvHeader->HeaderLength / sizeof (UINT16));
> > > >    }
> > > >
> > > > +  if (mRiscV) {
> > > > +     //
> > > > +     // Update RISCV reset vector.
> > > > +     //
> > > > +     Status = UpdateRiscvResetVectorIfNeeded (&FvImageMemoryFile,
> > > &mFvDataInfo);
> > > > +     if (EFI_ERROR (Status)) {
> > > > +       Error (NULL, 0, 3000, "Invalid", "Could not update the
> > > > + reset vector for
> > > RISC-V.");
> > > > +       goto Finish;
> > > > +    }
> > > > +    //
> > > > +    // Update Checksum for FvHeader
> > > > +    //
> > > > +    FvHeader->Checksum = 0;
> > > > +    FvHeader->Checksum = CalculateChecksum16 ((UINT16 *)
> > > > + FvHeader,
> > > > + FvHeader->HeaderLength / sizeof (UINT16));  }
> > > > +
> > > >    //
> > > >    // Update FV Alignment attribute to the largest alignment of
> > > > all the FFS
> > > files in the FV
> > > >    //
> > > > @@ -3853,7 +3800,7 @@ Returns:
> > > >      ImageContext.DestinationAddress = NewPe32BaseAddress;
> > > >      Status                          = PeCoffLoaderRelocateImage (&ImageContext);
> > > >      if (EFI_ERROR (Status)) {
> > > > -      Error (NULL, 0, 3000, "Invalid", "RelocateImage() call failed on
> rebase of
> > > %s", FileName);
> > > > +      Error (NULL, 0, 3000, "Invalid", "RelocateImage() call
> > > > + failed on rebase of %s Status=%d", FileName, Status);
> > > >        free ((VOID *) MemoryImagePointer);
> > > >        return Status;
> > > >      }
> > > > diff --git a/BaseTools/Source/C/GenFw/Elf64Convert.c
> > > > b/BaseTools/Source/C/GenFw/Elf64Convert.c
> > > > index 4857485..77b4d53 100644
> > > > --- a/BaseTools/Source/C/GenFw/Elf64Convert.c
> > > > +++ b/BaseTools/Source/C/GenFw/Elf64Convert.c
> > > > @@ -946,8 +946,60 @@ WriteSections64 (
> > > >              RiscvSymSecIndex = 0;
> > > >              break;
> > > >
> > > > +          case R_RISCV_PCREL_HI20:
> > > > +            RiscvHi20Targ = Targ;
> > > > +            RiscvHi20Sym = SymShdr;
> > > > +            RiscvSymSecIndex = Sym->st_shndx;
> > > > +
> > > > +            Value = (UINT32)(RV_X(*(UINT32 *)RiscvHi20Targ, 12, 20));
> > > > +            printf("PCREL_HI20 Sym:[%s] value:0x%x
> > > > + SymShdr->sh_addr:0x%lx
> > > mCoffSectionOffset:%x \n", GetSymName(Sym), Value, SymShdr-
> >sh_addr,
> > > mCoffSectionsOffset[Sym->st_shndx]);
> > > > +            break;
> > > > +          case R_RISCV_PCREL_LO12_I:
> > > > +            if (RiscvHi20Targ != NULL && RiscvHi20Sym != NULL &&
> > > RiscvSymSecIndex != 0) {
> > > > +              int i;
> > > > +              Value2 = (UINT32)(RV_X(*(UINT32 *)RiscvHi20Targ, 12, 20));
> > > > +              Value = (UINT32)(RV_X(*(UINT32 *)Targ, 20, 12));
> > > > +              if(Value & (RISCV_IMM_REACH/2)) {
> > > > +                Value |= ~(RISCV_IMM_REACH-1);
> > > > +              }
> > > > +              printf("PCREL_LO12_I Sym:[%s] value:0x%x SymShdr-
> > > >sh_addr:0x%lx mCoffSectionOffset:%x \n", GetSymName(Sym), Value,
> > > SymShdr->sh_addr, mCoffSectionsOffset[Sym->st_shndx]);
> > > > +              Value = Value - RiscvHi20Sym->sh_addr +
> > > mCoffSectionsOffset[RiscvSymSecIndex];
> > > > +              if(-2048 > (INT32)Value) {
> > > > +                i = (-Value / 4096);
> > > > +                //Error (NULL, 0, 3000, "Invalid", "WriteSections64():
> > > PCREL_LO12_I relocation out of range. %d i=%d", Value, i);
> > > > +                printf("WriteSections64(): PCREL_LO12_I relocation out of
> range.
> > > Value:%d Value2:%d i=%d\n", Value, Value2, i);
> > > > +                Value2 -= i;
> > > > +                Value += 4096 * i;
> > > > +                if(-2048 > (INT32)Value) {
> > > > +                  Value2 -= 1;
> > > > +                  Value += 4096;
> > > > +                }
> > > > +              }
> > > > +              else if( 2047 < (INT32)Value) {
> > > > +                i = (Value / 4096);
> > > > +                //Error (NULL, 0, 3000, "Invalid", "WriteSections64():
> > > PCREL_LO12_I relocation out of range. %d i=%d", Value, i);
> > > > +                printf("WriteSections64(): PCREL_LO12_I relocation out of
> range.
> > > Value:%d Value2:%d i=%d\n", Value, Value2, i);
> > > > +                Value2 += i;
> > > > +                Value -= 4096 * i;
> > > > +                if(2047 < (INT32)Value) {
> > > > +                  Value2 += 1;
> > > > +                  Value -= 4096;
> > > > +                }
> > > > +              }
> > > > +
> > > > +              *(UINT32 *)Targ = (RV_X(Value, 0, 12) << 20) |
> > > (RV_X(*(UINT32*)Targ, 0, 20));
> > > > +              *(UINT32 *)RiscvHi20Targ = (RV_X(Value2, 0,
> > > > + 20)<<12) |
> > > (RV_X(*(UINT32 *)RiscvHi20Targ, 0, 12));
> > > > +              printf("PCREL_LO12_I Sym:[%s] relocated
> > > > + value:0x%x(%d)
> > > value2:0x%x(%d) SymShdr->sh_addr:0x%lx mCoffSectionOffset:%x \n",
> > > GetSymName(Sym), Value, Value, Value2, Value2,  SymShdr->sh_addr,
> > > mCoffSectionsOffset[Sym->st_shndx]);
> > > > +            }
> > > > +            RiscvHi20Sym = NULL;
> > > > +            RiscvHi20Targ = NULL;
> > > > +            RiscvSymSecIndex = 0;
> > > > +            break;
> > > > +
> > > >            case R_RISCV_ADD64:
> > > >            case R_RISCV_SUB64:
> > > > +          case R_RISCV_ADD32:
> > > > +          case R_RISCV_SUB32:
> > > >            case R_RISCV_BRANCH:
> > > >            case R_RISCV_JAL:
> > > >            case R_RISCV_GPREL_I:
> > > > @@ -1120,6 +1172,20 @@ WriteRelocations64 (
> > > >                  EFI_IMAGE_REL_BASED_ABSOLUTE);
> > > >                break;
> > > >
> > > > +            case R_RISCV_ADD32:
> > > > +              CoffAddFixup(
> > > > +                (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
> > > > +                + (Rel->r_offset - SecShdr->sh_addr)),
> > > > +                EFI_IMAGE_REL_BASED_ABSOLUTE);
> > > > +              break;
> > > > +
> > > > +            case R_RISCV_SUB32:
> > > > +              CoffAddFixup(
> > > > +                (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
> > > > +                + (Rel->r_offset - SecShdr->sh_addr)),
> > > > +                EFI_IMAGE_REL_BASED_ABSOLUTE);
> > > > +              break;
> > > > +
> > > >              case R_RISCV_BRANCH:
> > > >                CoffAddFixup(
> > > >                  (UINT32) ((UINT64)
> > > > mCoffSectionsOffset[RelShdr->sh_info]
> > > > @@ -1145,6 +1211,8 @@ WriteRelocations64 (
> > > >              case R_RISCV_SET8:
> > > >              case R_RISCV_SET16:
> > > >              case R_RISCV_SET32:
> > > > +            case R_RISCV_PCREL_HI20:
> > > > +            case R_RISCV_PCREL_LO12_I:
> > > >                break;
> > > >
> > > >              default:
> > >
> >
>