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-rw-r--r--BaseTools/Source/C/GenFw/Elf64Convert.c293
1 files changed, 289 insertions, 4 deletions
diff --git a/BaseTools/Source/C/GenFw/Elf64Convert.c b/BaseTools/Source/C/GenFw/Elf64Convert.c
index ca3c8f8bee..c6092269e2 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) 2013-2022, 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
@@ -177,7 +178,7 @@ 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_LOONGARCH))) {
Warning (NULL, 0, 3000, "Unsupported", "ELF e_machine is not Elf64 machine.");
}
if (mEhdr->e_version != EV_CURRENT) {
@@ -799,6 +800,7 @@ ScanSections64 (
case EM_X86_64:
case EM_AARCH64:
case EM_RISCV64:
+ case EM_LOONGARCH:
mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);
break;
default:
@@ -1088,6 +1090,10 @@ ScanSections64 (
NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_RISCV64;
NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
break;
+ case EM_LOONGARCH:
+ 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);
@@ -1333,10 +1339,10 @@ WriteSections64 (
}
//
- // Skip error on EM_RISCV64 becasue no symble name is built
- // from RISC-V toolchain.
+ // Skip error on EM_RISCV64 and EM_LOONGARCH because no symbol 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_LOONGARCH)) {
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.",
@@ -1618,6 +1624,178 @@ WriteSections64 (
// Write section for RISC-V 64 architecture.
//
WriteSectionRiscV64 (Rel, Targ, SymShdr, Sym);
+ } else if (mEhdr->e_machine == EM_LOONGARCH) {
+ switch (ELF_R_TYPE(Rel->r_info)) {
+ INT64 Offset;
+ INT32 Lo, Hi;
+
+ 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:
+ case R_LARCH_B16:
+ case R_LARCH_B21:
+ case R_LARCH_B26:
+ case R_LARCH_ABS_HI20:
+ case R_LARCH_ABS_LO12:
+ case R_LARCH_ABS64_LO20:
+ case R_LARCH_ABS64_HI12:
+ case R_LARCH_PCALA_LO12:
+ case R_LARCH_PCALA64_LO20:
+ case R_LARCH_PCALA64_HI12:
+ case R_LARCH_GOT_PC_LO12:
+ case R_LARCH_GOT64_PC_LO20:
+ case R_LARCH_GOT64_PC_HI12:
+ case R_LARCH_GOT64_HI20:
+ case R_LARCH_GOT64_LO12:
+ case R_LARCH_GOT64_LO20:
+ case R_LARCH_GOT64_HI12:
+ case R_LARCH_TLS_LE_HI20:
+ case R_LARCH_TLS_LE_LO12:
+ case R_LARCH_TLS_LE64_LO20:
+ case R_LARCH_TLS_LE64_HI12:
+ case R_LARCH_TLS_IE_PC_HI20:
+ case R_LARCH_TLS_IE_PC_LO12:
+ case R_LARCH_TLS_IE64_PC_LO20:
+ case R_LARCH_TLS_IE64_PC_HI12:
+ case R_LARCH_TLS_IE64_HI20:
+ case R_LARCH_TLS_IE64_LO12:
+ case R_LARCH_TLS_IE64_LO20:
+ case R_LARCH_TLS_IE64_HI12:
+ case R_LARCH_TLS_LD_PC_HI20:
+ case R_LARCH_TLS_LD64_HI20:
+ case R_LARCH_TLS_GD_PC_HI20:
+ case R_LARCH_TLS_GD64_HI20:
+ case R_LARCH_RELAX:
+ //
+ // These types are not used or do not require fixup.
+ //
+ break;
+
+ case R_LARCH_GOT_PC_HI20:
+ Offset = Sym->st_value - (UINTN)(Targ - mCoffFile);
+ if (Offset < 0) {
+ Offset = (UINTN)(Targ - mCoffFile) - Sym->st_value;
+ Hi = Offset & ~0xfff;
+ Lo = (INT32)((Offset & 0xfff) << 20) >> 20;
+ if ((Lo < 0) && (Lo > -2048)) {
+ Hi += 0x1000;
+ Lo = ~(0x1000 - Lo) + 1;
+ }
+ Hi = ~Hi + 1;
+ Lo = ~Lo + 1;
+ } else {
+ Hi = Offset & ~0xfff;
+ Lo = (INT32)((Offset & 0xfff) << 20) >> 20;
+ if (Lo < 0) {
+ Hi += 0x1000;
+ Lo = ~(0x1000 - Lo) + 1;
+ }
+ }
+ // Re-encode the offset as PCADDU12I + ADDI.D(Convert LD.D) instruction
+ *(UINT32 *)Targ &= 0x1f;
+ *(UINT32 *)Targ |= 0x1c000000;
+ *(UINT32 *)Targ |= (((Hi >> 12) & 0xfffff) << 5);
+ *(UINT32 *)(Targ + 4) &= 0x3ff;
+ *(UINT32 *)(Targ + 4) |= 0x2c00000 | ((Lo & 0xfff) << 10);
+ break;
+
+ //
+ // Attempt to convert instruction.
+ //
+ case R_LARCH_PCALA_HI20:
+ // Decode the PCALAU12I instruction and the instruction that following it.
+ Offset = ((INT32)((*(UINT32 *)Targ & 0x1ffffe0) << 7));
+ Offset += ((INT32)((*(UINT32 *)(Targ + 4) & 0x3ffc00) << 10) >> 20);
+ //
+ // PCALA offset is relative to the previous page boundary,
+ // whereas PCADD offset is relative to the instruction itself.
+ // So fix up the offset so it points to the page containing
+ // the symbol.
+ //
+ Offset -= (UINTN)(Targ - mCoffFile) & 0xfff;
+ if (Offset < 0) {
+ Offset = -Offset;
+ Hi = Offset & ~0xfff;
+ Lo = (INT32)((Offset & 0xfff) << 20) >> 20;
+ if ((Lo < 0) && (Lo > -2048)) {
+ Hi += 0x1000;
+ Lo = ~(0x1000 - Lo) + 1;
+ }
+ Hi = ~Hi + 1;
+ Lo = ~Lo + 1;
+ } else {
+ Hi = Offset & ~0xfff;
+ Lo = (INT32)((Offset & 0xfff) << 20) >> 20;
+ if (Lo < 0) {
+ Hi += 0x1000;
+ Lo = ~(0x1000 - Lo) + 1;
+ }
+ }
+ // Convert the first instruction from PCALAU12I to PCADDU12I and re-encode the offset into them.
+ *(UINT32 *)Targ &= 0x1f;
+ *(UINT32 *)Targ |= 0x1c000000;
+ *(UINT32 *)Targ |= (((Hi >> 12) & 0xfffff) << 5);
+ *(UINT32 *)(Targ + 4) &= 0xffc003ff;
+ *(UINT32 *)(Targ + 4) |= (Lo & 0xfff) << 10;
+ break;
+ default:
+ Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s unsupported ELF EM_LOONGARCH relocation 0x%x.", mInImageName, (unsigned) ELF64_R_TYPE(Rel->r_info));
+ }
} else {
Error (NULL, 0, 3000, "Invalid", "Not a supported machine type");
}
@@ -1850,6 +2028,113 @@ 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_LOONGARCH) {
+ 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:
+ case R_LARCH_B16:
+ case R_LARCH_B21:
+ case R_LARCH_B26:
+ case R_LARCH_ABS_HI20:
+ case R_LARCH_ABS_LO12:
+ case R_LARCH_ABS64_LO20:
+ case R_LARCH_ABS64_HI12:
+ case R_LARCH_PCALA_HI20:
+ case R_LARCH_PCALA_LO12:
+ case R_LARCH_PCALA64_LO20:
+ case R_LARCH_PCALA64_HI12:
+ case R_LARCH_GOT_PC_HI20:
+ case R_LARCH_GOT_PC_LO12:
+ case R_LARCH_GOT64_PC_LO20:
+ case R_LARCH_GOT64_PC_HI12:
+ case R_LARCH_GOT64_HI20:
+ case R_LARCH_GOT64_LO12:
+ case R_LARCH_GOT64_LO20:
+ case R_LARCH_GOT64_HI12:
+ case R_LARCH_TLS_LE_HI20:
+ case R_LARCH_TLS_LE_LO12:
+ case R_LARCH_TLS_LE64_LO20:
+ case R_LARCH_TLS_LE64_HI12:
+ case R_LARCH_TLS_IE_PC_HI20:
+ case R_LARCH_TLS_IE_PC_LO12:
+ case R_LARCH_TLS_IE64_PC_LO20:
+ case R_LARCH_TLS_IE64_PC_HI12:
+ case R_LARCH_TLS_IE64_HI20:
+ case R_LARCH_TLS_IE64_LO12:
+ case R_LARCH_TLS_IE64_LO20:
+ case R_LARCH_TLS_IE64_HI12:
+ case R_LARCH_TLS_LD_PC_HI20:
+ case R_LARCH_TLS_LD64_HI20:
+ case R_LARCH_TLS_GD_PC_HI20:
+ case R_LARCH_TLS_GD64_HI20:
+ case R_LARCH_RELAX:
+ //
+ // 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_LOONGARCH 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);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 21:58:46 +0000