Hi Anber,

Please check my reply in the mail.

--
Thanks,
Chao
------------------------

On 4月 8 2022, at 2:25 下午, "Chang, Abner (HPS SW/FW Technologist)" <abner.chang@hpe.com> wrote:
>
>
> > -----Original Message-----
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Chao Li
> > Sent: Wednesday, February 9, 2022 2:55 PM
> > To: devel@edk2.groups.io
> > Cc: Bob Feng <bob.c.feng@intel.com>; Liming Gao
> > <gaoliming@byosoft.com.cn>; Yuwei Chen <yuwei.chen@intel.com>; Baoqi
> > Zhang <zhangbaoqi@loongson.cn>
> > Subject: [edk2-devel] [staging/LoongArch RESEND PATCH v1 13/33]
> > BaseTools: BaseTools changes for LoongArch platform.
> >
> > C code changes for building EDK2 LoongArch platform.
> >
> > Cc: Bob Feng <bob.c.feng@intel.com>
> > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > Cc: Yuwei Chen <yuwei.chen@intel.com>
> >
> > Signed-off-by: Chao Li <lichao@loongson.cn>
> > Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
> > ---
> > BaseTools/Source/C/Common/BasePeCoff.c | 15 +-
> > BaseTools/Source/C/Common/PeCoffLoaderEx.c | 76 +++++++++
> > BaseTools/Source/C/GenFv/GenFvInternalLib.c | 128 ++++++++++++++-
> > BaseTools/Source/C/GenFw/Elf64Convert.c | 153 +++++++++++++++++-
> > BaseTools/Source/C/GenFw/elf_common.h | 58 +++++++
> > .../C/Include/IndustryStandard/PeImage.h | 57 ++++---
> > 6 files changed, 454 insertions(+), 33 deletions(-)
> >
> > diff --git a/BaseTools/Source/C/Common/BasePeCoff.c
> > b/BaseTools/Source/C/Common/BasePeCoff.c
> > index 62fbb2985c..30400d1341 100644
> > --- a/BaseTools/Source/C/Common/BasePeCoff.c
> > +++ b/BaseTools/Source/C/Common/BasePeCoff.c
> > @@ -5,6 +5,7 @@
> > Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
> > Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
> > Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All
> > rights reserved.<BR>
> > +Portions Copyright (c) 2022, Loongson Technology Corporation Limited. All
> > rights reserved.<BR>
> > SPDX-License-Identifier: BSD-2-Clause-Patent
> >
> > **/
> > @@ -68,6 +69,14 @@ PeCoffLoaderRelocateRiscVImage (
> > IN UINT64 Adjust
> > );
> >
> > +RETURN_STATUS
> > +PeCoffLoaderRelocateLoongArch64Image (
> > + IN UINT16 *Reloc,
> > + IN OUT CHAR8 *Fixup,
> > + IN OUT CHAR8 **FixupData,
> > + IN UINT64 Adjust
> > + );
> > +
> > STATIC
> > RETURN_STATUS
> > PeCoffLoaderGetPeHeader (
> > @@ -184,7 +193,8 @@ Returns:
> > ImageContext->Machine != EFI_IMAGE_MACHINE_ARMT && \
> > ImageContext->Machine != EFI_IMAGE_MACHINE_EBC && \
> > ImageContext->Machine != EFI_IMAGE_MACHINE_AARCH64 && \
> > - ImageContext->Machine != EFI_IMAGE_MACHINE_RISCV64) {
> > + ImageContext->Machine != EFI_IMAGE_MACHINE_RISCV64 && \
> > + ImageContext->Machine != EFI_IMAGE_MACHINE_LOONGARCH64) {
> > if (ImageContext->Machine == IMAGE_FILE_MACHINE_ARM) {
> > //
> > // There are two types of ARM images. Pure ARM and ARM/Thumb.
> > @@ -815,6 +825,9 @@ Returns:
> > case EFI_IMAGE_MACHINE_RISCV64:
> > Status = PeCoffLoaderRelocateRiscVImage (Reloc, Fixup, &FixupData,
> > Adjust);
> > break;
> > + case EFI_IMAGE_MACHINE_LOONGARCH64:
> > + Status = PeCoffLoaderRelocateLoongArch64Image (Reloc, Fixup,
> > &FixupData, Adjust);
> > + break;
> > default:
> > Status = RETURN_UNSUPPORTED;
> > break;
> > diff --git a/BaseTools/Source/C/Common/PeCoffLoaderEx.c
> > b/BaseTools/Source/C/Common/PeCoffLoaderEx.c
> > index 799f282970..b50ce8bdef 100644
> > --- a/BaseTools/Source/C/Common/PeCoffLoaderEx.c
> > +++ b/BaseTools/Source/C/Common/PeCoffLoaderEx.c
> > @@ -4,6 +4,7 @@ IA32 and X64 Specific relocation fixups
> > Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
> > Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
> > Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights
> > reserved.<BR>
> > +Copyright (c) 2022, Loongson Technology Corporation Limited. All rights
> > reserved.<BR>
> > SPDX-License-Identifier: BSD-2-Clause-Patent
> >
> > --*/
> > @@ -332,3 +333,78 @@ PeCoffLoaderRelocateArmImage (
> >
> > return RETURN_SUCCESS;
> > }
> > +
> > +/**
> > + Performs a LoongArch specific relocation fixup.
> > +
> > + @param Reloc Pointer to the relocation record.
> > + @param Fixup Pointer to the address to fix up.
> > + @param FixupData Pointer to a buffer to log the fixups.
> > + @param Adjust The offset to adjust the fixup.
> > +
> > + @return Status code.
> > +**/
> > +RETURN_STATUS
> > +PeCoffLoaderRelocateLoongArch64Image (
> > + IN UINT16 *Reloc,
> > + IN OUT CHAR8 *Fixup,
> > + IN OUT CHAR8 **FixupData,
> > + IN UINT64 Adjust
> > + )
> > +{
> > + UINT8 RelocType;
> > + UINT64 Value = 0;
> > + UINT64 Tmp1 = 0;
> > + UINT64 Tmp2 = 0;
> > +
> > + RelocType = ((*Reloc) >> 12);
> > +
> > + switch (RelocType) {
> > + case EFI_IMAGE_REL_BASED_LOONGARCH64_MARK_LA:
> > + /* The next four instructions are used to load a 64 bit address, we
> > change it together*/
> > + Value = (*(UINT32*)Fixup & 0x1ffffe0) << 7 | /* lu12i.w 20bits from
> > bit5 */
> Please use double back slash for the comment in the function. So the comment in the entire file look consistent. This applied to the changes in this patch.
>

Chao: Okay, I will revise it in the next version.

> + (*((UINT32*)Fixup + 1) & 0x3ffc00) >> 10; /* ori 12bits from bit10 */
> + Tmp1 = *((UINT32*)Fixup + 2) & 0x1ffffe0; /* lu32i.d 20bits from bit5
> */
> + Tmp2 = *((UINT32*)Fixup + 3) & 0x3ffc00; /* lu52i.d 12bits from
> bit10 */
> + Value = Value | (Tmp1 << 27) | (Tmp2 << 42);
> +
> + Value += Adjust;
> +
> + *(UINT32*)Fixup = (*(UINT32*)Fixup & ~0x1ffffe0) | (((Value >> 12) &
> 0xfffff) << 5);
> + if (*FixupData != NULL) {
> + *FixupData = ALIGN_POINTER (*FixupData, sizeof (UINT32));
> + *(UINT32 *) (*FixupData) = *(UINT32*)Fixup;
> + *FixupData = *FixupData + sizeof (UINT32);
> + }
> +
> + Fixup += sizeof(UINT32);
> + *(UINT32*)Fixup = (*(UINT32*)Fixup & ~0x3ffc00) | ((Value & 0xfff) <<
> 10);
> + if (*FixupData != NULL) {
> + *FixupData = ALIGN_POINTER (*FixupData, sizeof (UINT32));
> + *(UINT32 *) (*FixupData) = *(UINT32*)Fixup;
> + *FixupData = *FixupData + sizeof (UINT32);
> + }
> +
> + Fixup += sizeof(UINT32);
> + *(UINT32*)Fixup = (*(UINT32*)Fixup & ~0x1ffffe0) | (((Value >> 32) &
> 0xfffff) << 5);
> + if (*FixupData != NULL) {
> + *FixupData = ALIGN_POINTER (*FixupData, sizeof (UINT32));
> + *(UINT32 *) (*FixupData) = *(UINT32*)Fixup;
> + *FixupData = *FixupData + sizeof (UINT32);
> + }
> +
> + Fixup += sizeof(UINT32);
> + *(UINT32*)Fixup = (*(UINT32*)Fixup & ~0x3ffc00) | (((Value >> 52) &
> 0xfff) << 10);
> + if (*FixupData != NULL) {
> + *FixupData = ALIGN_POINTER (*FixupData, sizeof (UINT32));
> + *(UINT32 *) (*FixupData) = *(UINT32*)Fixup;
> + *FixupData = *FixupData + sizeof (UINT32);
> + }
> + break;
> + default:
> + Error (NULL, 0, 3000, "", "PeCoffLoaderRelocateLoongArch64Image:
> Fixup[0x%x] Adjust[0x%llx] *Reloc[0x%x], type[0x%x].", *(UINT32*)Fixup,
> Adjust, *Reloc, RelocType);
> + return RETURN_UNSUPPORTED;
> + }
> +
> + return RETURN_SUCCESS;
> +}
> diff --git a/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> b/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> index d650a527a5..9c518b3609 100644
> --- a/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> +++ b/BaseTools/Source/C/GenFv/GenFvInternalLib.c
> @@ -5,6 +5,7 @@ Copyright (c) 2004 - 2018, Intel Corporation. All rights
> reserved.<BR>
> Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
> Portions Copyright (c) 2016 HP Development Company, L.P.<BR>
> Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All
> rights reserved.<BR>
> +Portions Copyright (c) 2022, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -57,6 +58,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
>
> BOOLEAN mArm = FALSE;
> BOOLEAN mRiscV = FALSE;
> +BOOLEAN mLoongArch = FALSE;
> STATIC UINT32 MaxFfsAlignment = 0;
> BOOLEAN VtfFileFlag = FALSE;
>
> @@ -2416,6 +2418,102 @@ Returns:
> return EFI_SUCCESS;
> }
>
> +EFI_STATUS
> +UpdateLoongArchResetVectorIfNeeded (
> + IN MEMORY_FILE *FvImage,
> + IN FV_INFO *FvInfo
> + )
> +/*++
> +
> +Routine Description:
> + This parses the FV looking for SEC and patches that address into the
> + beginning of the FV header.
> +
> + For LoongArch ISA, the reset vector is at 0x1c000000.
> +
> + We relocate it to SecCoreEntry and copy the ResetVector code to the
> + beginning of the FV.
> +
> +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;
> + EFI_FILE_SECTION_POINTER SecPe32;
> + BOOLEAN UpdateVectorSec = FALSE;
> + UINT16 MachineType = 0;
> + EFI_PHYSICAL_ADDRESS SecCoreEntryAddress = 0;
> +
> + //
> + // Verify input parameters
> + //
> + if (FvImage == NULL || FvInfo == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + //
> + // Locate an SEC Core instance and if found extract the machine type and
> entry point address
> + //
> + Status = FindCorePeSection(FvImage->FileImage, FvInfo->Size,
> EFI_FV_FILETYPE_SECURITY_CORE, &SecPe32);
> + if (!EFI_ERROR(Status)) {
> +
> + 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;
> + }
> +
> + 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;
> + }
> +
> + UpdateVectorSec = TRUE;
> + }
> +
> + if (!UpdateVectorSec)
> + return EFI_SUCCESS;
> +
> + if (MachineType == EFI_IMAGE_MACHINE_LOONGARCH64) {
> + UINT32 ResetVector[3];
> + UINT32 InstrStack;
> +
> + memset(ResetVector, 0, sizeof (ResetVector));
> +
> + /* if we found an SEC core entry point then generate a branch instruction
> */
> + if (UpdateVectorSec) {
> + VerboseMsg("UpdateLoongArchResetVectorIfNeeded updating
> LOONGARCH64 SEC vector");
> +
> + InstrStack = (SecCoreEntryAddress >> 12) & 0xfffff;
> + ResetVector[0] = 0x14000001 | (InstrStack << 5); /* lu12i.w ra si20 */
> +
> + InstrStack = (SecCoreEntryAddress & 0x0fff);
> + ResetVector[1] = 0x03800021 | (InstrStack << 10); /* ori ra, ra, ui12 */
> + ResetVector[2] = 0x4c000021; /* jirl ra, ra, 0 */
> + }
> +
> + //
> + // Copy to the beginning of the FV
> + //
> + memcpy(FvImage->FileImage, ResetVector, sizeof (ResetVector));
> + } else {
> + Error(NULL, 0, 3000, "Invalid", "Unknown machine type");
> + return EFI_ABORTED;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> EFI_STATUS
> GetPe32Info (
> IN UINT8 *Pe32,
> @@ -2509,7 +2607,7 @@ Returns:
> //
> if ((*MachineType != EFI_IMAGE_MACHINE_IA32) && (*MachineType !=
> EFI_IMAGE_MACHINE_X64) && (*MachineType !=
> EFI_IMAGE_MACHINE_EBC) &&
> (*MachineType != EFI_IMAGE_MACHINE_ARMT) && (*MachineType !=
> EFI_IMAGE_MACHINE_AARCH64) &&
> - (*MachineType != EFI_IMAGE_MACHINE_RISCV64)) {
> + (*MachineType != EFI_IMAGE_MACHINE_RISCV64) &&
> (*MachineType != EFI_IMAGE_MACHINE_LOONGARCH64)) {
> Error (NULL, 0, 3000, "Invalid", "Unrecognized machine type in the PE32
> file.");
> return EFI_UNSUPPORTED;
> }
> @@ -2953,7 +3051,7 @@ Returns:
> goto Finish;
> }
>
> - if (!mArm && !mRiscV) {
> + if (!mArm && !mRiscV && !mLoongArch) {
> //
> // Update reset vector (SALE_ENTRY for IPF)
> // Now for IA32 and IA64 platform, the fv which has bsf file must have the
> @@ -3004,6 +3102,19 @@ Returns:
> FvHeader->Checksum = CalculateChecksum16 ((UINT16 *) FvHeader,
> FvHeader->HeaderLength / sizeof (UINT16));
> }
>
> + if (mLoongArch) {
> + Status = UpdateLoongArchResetVectorIfNeeded (&FvImageMemoryFile,
> &mFvDataInfo);
> + 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));
> + }
> +
> //
> // Update FV Alignment attribute to the largest alignment of all the FFS files
> in the FV
> //
> @@ -3450,6 +3561,11 @@ Returns:
> VerboseMsg("Located ARM/AArch64 SEC/PEI core in child FV");
> mArm = TRUE;
> }
> + // machine type is LOONGARCH64, set a flag so LOONGARCH64 reset
> vector procesing occurs
> + if ((MachineType == EFI_IMAGE_MACHINE_LOONGARCH64)) {
> + VerboseMsg("Located LOONGARCH64 SEC core in child FV");
> + mLoongArch = TRUE;
> + }
> }
>
> //
> @@ -3608,6 +3724,10 @@ Returns:
> mRiscV = TRUE;
> }
>
> + if ( (ImageContext.Machine == EFI_IMAGE_MACHINE_LOONGARCH64) ) {
> + mLoongArch = TRUE;
> + }
> +
> //
> // Keep Image Context for PE image in FV
> //
> @@ -3885,6 +4005,10 @@ Returns:
> mArm = TRUE;
> }
>
> + if ( (ImageContext.Machine == EFI_IMAGE_MACHINE_LOONGARCH64) ) {
> + mLoongArch = TRUE;
> + }
> +
> //
> // Keep Image Context for TE image in FV
> //
> diff --git a/BaseTools/Source/C/GenFw/Elf64Convert.c
> b/BaseTools/Source/C/GenFw/Elf64Convert.c
> index 0bb3ead228..b66aadfd6c 100644
> --- a/BaseTools/Source/C/GenFw/Elf64Convert.c
> +++ b/BaseTools/Source/C/GenFw/Elf64Convert.c
> @@ -4,6 +4,7 @@ Elf64 convert solution
> Copyright (c) 2010 - 2021, Intel Corporation. All rights reserved.<BR>
> Portions copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
> Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All
> rights reserved.<BR>
> +Portions Copyright (c) 2022, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> @@ -163,7 +164,7 @@ InitializeElf64 (
> Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or
> ET_DYN");
> return FALSE;
> }
> - if (!((mEhdr->e_machine == EM_X86_64) || (mEhdr->e_machine ==
> EM_AARCH64) || (mEhdr->e_machine == EM_RISCV64))) {
> + if (!((mEhdr->e_machine == EM_X86_64) || (mEhdr->e_machine ==
> EM_AARCH64) || (mEhdr->e_machine == EM_RISCV64) || (mEhdr-
> >e_machine == EM_LOONGARCH64))) {
> Warning (NULL, 0, 3000, "Unsupported", "ELF e_machine is not Elf64
> machine.");
> }
> if (mEhdr->e_version != EV_CURRENT) {
> @@ -730,6 +731,7 @@ ScanSections64 (
> case EM_X86_64:
> case EM_AARCH64:
> case EM_RISCV64:
> + case EM_LOONGARCH64:
> mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);
> break;
> default:
> @@ -943,6 +945,10 @@ ScanSections64 (
> NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_RISCV64;
> NtHdr->Pe32Plus.OptionalHeader.Magic =
> EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
> break;
> + case EM_LOONGARCH64:
> + NtHdr->Pe32Plus.FileHeader.Machine =
> EFI_IMAGE_MACHINE_LOONGARCH64;
> + NtHdr->Pe32Plus.OptionalHeader.Magic =
> EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
> + break;
>
> default:
> VerboseMsg ("%s unknown e_machine type. Assume X64",
> (UINTN)mEhdr->e_machine);
> @@ -1149,10 +1155,10 @@ WriteSections64 (
> }
>
> //
> - // Skip error on EM_RISCV64 becasue no symble name is built
> - // from RISC-V toolchain.
> + // Skip error on EM_RISCV64 and EM_LOONGARCH64 becasue no
> symble name is built
> + // from RISC-V and LoongArch toolchain.
> //
> - if (mEhdr->e_machine != EM_RISCV64) {
> + if ((mEhdr->e_machine != EM_RISCV64) && (mEhdr->e_machine !=
> EM_LOONGARCH64)) {
> Error (NULL, 0, 3000, "Invalid",
> "%s: Bad definition for symbol '%s'@%#llx or unsupported symbol
> type. "
> "For example, absolute and undefined symbols are not
> supported.",
> @@ -1417,6 +1423,74 @@ WriteSections64 (
> // Write section for RISC-V 64 architecture.
> //
> WriteSectionRiscV64 (Rel, Targ, SymShdr, Sym);
> + } else if (mEhdr->e_machine == EM_LOONGARCH64) {
> + switch (ELF_R_TYPE(Rel->r_info)) {
> +
> + case R_LARCH_SOP_PUSH_ABSOLUTE:
> + //
> + // Absolute relocation.
> + //
> + *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr +
> mCoffSectionsOffset[Sym->st_shndx];
> + break;
> +
> + case R_LARCH_MARK_LA:
> + case R_LARCH_64:
> + case R_LARCH_NONE:
> + case R_LARCH_32:
> + case R_LARCH_RELATIVE:
> + case R_LARCH_COPY:
> + case R_LARCH_JUMP_SLOT:
> + case R_LARCH_TLS_DTPMOD32:
> + case R_LARCH_TLS_DTPMOD64:
> + case R_LARCH_TLS_DTPREL32:
> + case R_LARCH_TLS_DTPREL64:
> + case R_LARCH_TLS_TPREL32:
> + case R_LARCH_TLS_TPREL64:
> + case R_LARCH_IRELATIVE:
> + case R_LARCH_MARK_PCREL:
> + case R_LARCH_SOP_PUSH_PCREL:
> + case R_LARCH_SOP_PUSH_DUP:
> + case R_LARCH_SOP_PUSH_GPREL:
> + case R_LARCH_SOP_PUSH_TLS_TPREL:
> + case R_LARCH_SOP_PUSH_TLS_GOT:
> + case R_LARCH_SOP_PUSH_TLS_GD:
> + case R_LARCH_SOP_PUSH_PLT_PCREL:
> + case R_LARCH_SOP_ASSERT:
> + case R_LARCH_SOP_NOT:
> + case R_LARCH_SOP_SUB:
> + case R_LARCH_SOP_SL:
> + case R_LARCH_SOP_SR:
> + case R_LARCH_SOP_ADD:
> + case R_LARCH_SOP_AND:
> + case R_LARCH_SOP_IF_ELSE:
> + case R_LARCH_SOP_POP_32_S_10_5:
> + case R_LARCH_SOP_POP_32_U_10_12:
> + case R_LARCH_SOP_POP_32_S_10_12:
> + case R_LARCH_SOP_POP_32_S_10_16:
> + case R_LARCH_SOP_POP_32_S_10_16_S2:
> + case R_LARCH_SOP_POP_32_S_5_20:
> + case R_LARCH_SOP_POP_32_S_0_5_10_16_S2:
> + case R_LARCH_SOP_POP_32_S_0_10_10_16_S2:
> + case R_LARCH_SOP_POP_32_U:
> + case R_LARCH_ADD8:
> + case R_LARCH_ADD16:
> + case R_LARCH_ADD24:
> + case R_LARCH_ADD32:
> + case R_LARCH_ADD64:
> + case R_LARCH_SUB8:
> + case R_LARCH_SUB16:
> + case R_LARCH_SUB24:
> + case R_LARCH_SUB32:
> + case R_LARCH_SUB64:
> + case R_LARCH_GNU_VTINHERIT:
> + case R_LARCH_GNU_VTENTRY:
> + //
> + // These types are not used or do not need to fix the offsets.
> + //
> + break;
> + default:
> + Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s unsupported
> ELF EM_LOONGARCH64 relocation 0x%x.", mInImageName, (unsigned)
> ELF64_R_TYPE(Rel->r_info));
> + }
> } else {
> Error (NULL, 0, 3000, "Invalid", "Not a supported machine type");
> }
> @@ -1647,6 +1721,77 @@ WriteRelocations64 (
> default:
> Error (NULL, 0, 3000, "Invalid", "WriteRelocations64(): %s
> unsupported ELF EM_RISCV64 relocation 0x%x.", mInImageName, (unsigned)
> ELF_R_TYPE(Rel->r_info));
> }
> + } else if (mEhdr->e_machine == EM_LOONGARCH64) {
> + switch (ELF_R_TYPE(Rel->r_info)) {
> + case R_LARCH_MARK_LA:
> + CoffAddFixup(
> + (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
> + + (Rel->r_offset - SecShdr->sh_addr)),
> + EFI_IMAGE_REL_BASED_LOONGARCH64_MARK_LA);
> + break;
> + case R_LARCH_64:
> + CoffAddFixup(
> + (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
> + + (Rel->r_offset - SecShdr->sh_addr)),
> + EFI_IMAGE_REL_BASED_DIR64);
> + break;
> + case R_LARCH_NONE:
> + case R_LARCH_32:
> + case R_LARCH_RELATIVE:
> + case R_LARCH_COPY:
> + case R_LARCH_JUMP_SLOT:
> + case R_LARCH_TLS_DTPMOD32:
> + case R_LARCH_TLS_DTPMOD64:
> + case R_LARCH_TLS_DTPREL32:
> + case R_LARCH_TLS_DTPREL64:
> + case R_LARCH_TLS_TPREL32:
> + case R_LARCH_TLS_TPREL64:
> + case R_LARCH_IRELATIVE:
> + case R_LARCH_MARK_PCREL:
> + case R_LARCH_SOP_PUSH_PCREL:
> + case R_LARCH_SOP_PUSH_ABSOLUTE:
> + case R_LARCH_SOP_PUSH_DUP:
> + case R_LARCH_SOP_PUSH_GPREL:
> + case R_LARCH_SOP_PUSH_TLS_TPREL:
> + case R_LARCH_SOP_PUSH_TLS_GOT:
> + case R_LARCH_SOP_PUSH_TLS_GD:
> + case R_LARCH_SOP_PUSH_PLT_PCREL:
> + case R_LARCH_SOP_ASSERT:
> + case R_LARCH_SOP_NOT:
> + case R_LARCH_SOP_SUB:
> + case R_LARCH_SOP_SL:
> + case R_LARCH_SOP_SR:
> + case R_LARCH_SOP_ADD:
> + case R_LARCH_SOP_AND:
> + case R_LARCH_SOP_IF_ELSE:
> + case R_LARCH_SOP_POP_32_S_10_5:
> + case R_LARCH_SOP_POP_32_U_10_12:
> + case R_LARCH_SOP_POP_32_S_10_12:
> + case R_LARCH_SOP_POP_32_S_10_16:
> + case R_LARCH_SOP_POP_32_S_10_16_S2:
> + case R_LARCH_SOP_POP_32_S_5_20:
> + case R_LARCH_SOP_POP_32_S_0_5_10_16_S2:
> + case R_LARCH_SOP_POP_32_S_0_10_10_16_S2:
> + case R_LARCH_SOP_POP_32_U:
> + case R_LARCH_ADD8:
> + case R_LARCH_ADD16:
> + case R_LARCH_ADD24:
> + case R_LARCH_ADD32:
> + case R_LARCH_ADD64:
> + case R_LARCH_SUB8:
> + case R_LARCH_SUB16:
> + case R_LARCH_SUB24:
> + case R_LARCH_SUB32:
> + case R_LARCH_SUB64:
> + case R_LARCH_GNU_VTINHERIT:
> + case R_LARCH_GNU_VTENTRY:
> + //
> + // These types are not used or do not require fixup in PE format
> files.
> + //
> + break;
> + default:
> + Error (NULL, 0, 3000, "Invalid", "WriteRelocations64(): %s
> unsupported ELF EM_LOONGARCH64 relocation 0x%x.", mInImageName,
> (unsigned) ELF64_R_TYPE(Rel->r_info));
> + }
> } else {
> Error (NULL, 0, 3000, "Not Supported", "This tool does not support
> relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr-
> >e_machine);
> }
> diff --git a/BaseTools/Source/C/GenFw/elf_common.h
> b/BaseTools/Source/C/GenFw/elf_common.h
> index b67f59e7a0..34c8748f39 100644
> --- a/BaseTools/Source/C/GenFw/elf_common.h
> +++ b/BaseTools/Source/C/GenFw/elf_common.h
> @@ -4,6 +4,7 @@ Ported ELF include files from FreeBSD
> Copyright (c) 2009 - 2010, Apple Inc. All rights reserved.<BR>
> Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
> Portion Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All
> rights reserved.<BR>
> +Portions Copyright (c) 2022, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
> @@ -181,6 +182,7 @@ typedef struct {
> #define EM_AARCH64 183 /* ARM 64bit Architecture */
> #define EM_RISCV64 243 /* 64bit RISC-V Architecture */
> #define EM_RISCV 244 /* 32bit RISC-V Architecture */
> +#define EM_LOONGARCH64 258 /* LoongArch 64-bit Architecture */
Do you have 32-bit LOONGARCH that also requires a value in spec?

Abner
Chao: I fact we only applied one value in Binutils that 258. I have been modified this on our internal repo. Next version, I will have it sync ed to our internal repo content, it should be: #define EM_LOONGARCH 258 /* LoongArch Architecture */
>
> /* Non-standard or deprecated. */
> #define EM_486 6 /* Intel i486. */
> @@ -1042,4 +1044,60 @@ typedef struct {
> #define R_RISCV_SET8 54
> #define R_RISCV_SET16 55
> #define R_RISCV_SET32 56
> +
> +/*
> + * LoongArch relocation types
> + */
> +#define R_LARCH_NONE 0
> +#define R_LARCH_32 1
> +#define R_LARCH_64 2
> +#define R_LARCH_RELATIVE 3
> +#define R_LARCH_COPY 4
> +#define R_LARCH_JUMP_SLOT 5
> +#define R_LARCH_TLS_DTPMOD32 6
> +#define R_LARCH_TLS_DTPMOD64 7
> +#define R_LARCH_TLS_DTPREL32 8
> +#define R_LARCH_TLS_DTPREL64 9
> +#define R_LARCH_TLS_TPREL32 10
> +#define R_LARCH_TLS_TPREL64 11
> +#define R_LARCH_IRELATIVE 12
> +#define R_LARCH_MARK_LA 20
> +#define R_LARCH_MARK_PCREL 21
> +#define R_LARCH_SOP_PUSH_PCREL 22
> +#define R_LARCH_SOP_PUSH_ABSOLUTE 23
> +#define R_LARCH_SOP_PUSH_DUP 24
> +#define R_LARCH_SOP_PUSH_GPREL 25
> +#define R_LARCH_SOP_PUSH_TLS_TPREL 26
> +#define R_LARCH_SOP_PUSH_TLS_GOT 27
> +#define R_LARCH_SOP_PUSH_TLS_GD 28
> +#define R_LARCH_SOP_PUSH_PLT_PCREL 29
> +#define R_LARCH_SOP_ASSERT 30
> +#define R_LARCH_SOP_NOT 31
> +#define R_LARCH_SOP_SUB 32
> +#define R_LARCH_SOP_SL 33
> +#define R_LARCH_SOP_SR 34
> +#define R_LARCH_SOP_ADD 35
> +#define R_LARCH_SOP_AND 36
> +#define R_LARCH_SOP_IF_ELSE 37
> +#define R_LARCH_SOP_POP_32_S_10_5 38
> +#define R_LARCH_SOP_POP_32_U_10_12 39
> +#define R_LARCH_SOP_POP_32_S_10_12 40
> +#define R_LARCH_SOP_POP_32_S_10_16 41
> +#define R_LARCH_SOP_POP_32_S_10_16_S2 42
> +#define R_LARCH_SOP_POP_32_S_5_20 43
> +#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
> +#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
> +#define R_LARCH_SOP_POP_32_U 46
> +#define R_LARCH_ADD8 47
> +#define R_LARCH_ADD16 48
> +#define R_LARCH_ADD24 49
> +#define R_LARCH_ADD32 50
> +#define R_LARCH_ADD64 51
> +#define R_LARCH_SUB8 52
> +#define R_LARCH_SUB16 53
> +#define R_LARCH_SUB24 54
> +#define R_LARCH_SUB32 55
> +#define R_LARCH_SUB64 56
> +#define R_LARCH_GNU_VTINHERIT 57
> +#define R_LARCH_GNU_VTENTRY 58
> #endif /* !_SYS_ELF_COMMON_H_ */
> diff --git a/BaseTools/Source/C/Include/IndustryStandard/PeImage.h
> b/BaseTools/Source/C/Include/IndustryStandard/PeImage.h
> index f17b8ee19b..80961e5576 100644
> --- a/BaseTools/Source/C/Include/IndustryStandard/PeImage.h
> +++ b/BaseTools/Source/C/Include/IndustryStandard/PeImage.h
> @@ -7,6 +7,7 @@
> Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
> Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights
> reserved.<BR>
> + Copyright (c) 2022, Loongson Technology Corporation Limited. All rights
> reserved.<BR>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> @@ -36,23 +37,25 @@
> //
> // PE32+ Machine type for EFI images
> //
> -#define IMAGE_FILE_MACHINE_I386 0x014c
> -#define IMAGE_FILE_MACHINE_EBC 0x0EBC
> -#define IMAGE_FILE_MACHINE_X64 0x8664
> -#define IMAGE_FILE_MACHINE_ARM 0x01c0 // Thumb only
> -#define IMAGE_FILE_MACHINE_ARMT 0x01c2 // 32bit Mixed ARM and
> Thumb/Thumb 2 Little Endian
> -#define IMAGE_FILE_MACHINE_ARM64 0xAA64 // 64bit ARM
> Architecture, Little Endian
> -#define IMAGE_FILE_MACHINE_RISCV64 0x5064 // 64bit RISC-V ISA
> +#define IMAGE_FILE_MACHINE_I386 0x014c
> +#define IMAGE_FILE_MACHINE_EBC 0x0EBC
> +#define IMAGE_FILE_MACHINE_X64 0x8664
> +#define IMAGE_FILE_MACHINE_ARM 0x01c0 // Thumb only
> +#define IMAGE_FILE_MACHINE_ARMT 0x01c2 // 32bit Mixed ARM and
> Thumb/Thumb 2 Little Endian
> +#define IMAGE_FILE_MACHINE_ARM64 0xAA64 // 64bit ARM
> Architecture, Little Endian
> +#define IMAGE_FILE_MACHINE_RISCV64 0x5064 // 64bit RISC-V ISA
> +#define IMAGE_FILE_MACHINE_LOONGARCH64 0x6264 // 64bit LoongArch
> Architecture
>
> //
> // Support old names for backward compatible
> //
> -#define EFI_IMAGE_MACHINE_IA32 IMAGE_FILE_MACHINE_I386
> -#define EFI_IMAGE_MACHINE_EBC IMAGE_FILE_MACHINE_EBC
> -#define EFI_IMAGE_MACHINE_X64 IMAGE_FILE_MACHINE_X64
> -#define EFI_IMAGE_MACHINE_ARMT IMAGE_FILE_MACHINE_ARMT
> -#define EFI_IMAGE_MACHINE_AARCH64 IMAGE_FILE_MACHINE_ARM64
> -#define EFI_IMAGE_MACHINE_RISCV64 IMAGE_FILE_MACHINE_RISCV64
> +#define EFI_IMAGE_MACHINE_IA32 IMAGE_FILE_MACHINE_I386
> +#define EFI_IMAGE_MACHINE_EBC IMAGE_FILE_MACHINE_EBC
> +#define EFI_IMAGE_MACHINE_X64 IMAGE_FILE_MACHINE_X64
> +#define EFI_IMAGE_MACHINE_ARMT IMAGE_FILE_MACHINE_ARMT
> +#define EFI_IMAGE_MACHINE_AARCH64
> IMAGE_FILE_MACHINE_ARM64
> +#define EFI_IMAGE_MACHINE_RISCV64 IMAGE_FILE_MACHINE_RISCV64
> +#define EFI_IMAGE_MACHINE_LOONGARCH64
> IMAGE_FILE_MACHINE_LOONGARCH64
>
> #define EFI_IMAGE_DOS_SIGNATURE 0x5A4D // MZ
> #define EFI_IMAGE_OS2_SIGNATURE 0x454E // NE
> @@ -500,19 +503,21 @@ typedef struct {
> //
> // Based relocation types.
> //
> -#define EFI_IMAGE_REL_BASED_ABSOLUTE 0
> -#define EFI_IMAGE_REL_BASED_HIGH 1
> -#define EFI_IMAGE_REL_BASED_LOW 2
> -#define EFI_IMAGE_REL_BASED_HIGHLOW 3
> -#define EFI_IMAGE_REL_BASED_HIGHADJ 4
> -#define EFI_IMAGE_REL_BASED_MIPS_JMPADDR 5
> -#define EFI_IMAGE_REL_BASED_ARM_MOV32A 5
> -#define EFI_IMAGE_REL_BASED_RISCV_HI20 5
> -#define EFI_IMAGE_REL_BASED_ARM_MOV32T 7
> -#define EFI_IMAGE_REL_BASED_RISCV_LOW12I 7
> -#define EFI_IMAGE_REL_BASED_RISCV_LOW12S 8
> -#define EFI_IMAGE_REL_BASED_IA64_IMM64 9
> -#define EFI_IMAGE_REL_BASED_DIR64 10
> +#define EFI_IMAGE_REL_BASED_ABSOLUTE 0
> +#define EFI_IMAGE_REL_BASED_HIGH 1
> +#define EFI_IMAGE_REL_BASED_LOW 2
> +#define EFI_IMAGE_REL_BASED_HIGHLOW 3
> +#define EFI_IMAGE_REL_BASED_HIGHADJ 4
> +#define EFI_IMAGE_REL_BASED_MIPS_JMPADDR 5
> +#define EFI_IMAGE_REL_BASED_ARM_MOV32A 5
> +#define EFI_IMAGE_REL_BASED_RISCV_HI20 5
> +#define EFI_IMAGE_REL_BASED_ARM_MOV32T 7
> +#define EFI_IMAGE_REL_BASED_RISCV_LOW12I 7
> +#define EFI_IMAGE_REL_BASED_RISCV_LOW12S 8
> +#define EFI_IMAGE_REL_BASED_LOONGARCH32_MARK_LA 8
> +#define EFI_IMAGE_REL_BASED_LOONGARCH64_MARK_LA 8
> +#define EFI_IMAGE_REL_BASED_IA64_IMM64 9
> +#define EFI_IMAGE_REL_BASED_DIR64 10
>
>
> ///
> --
> 2.27.0
>
>
>
> 
>