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BaseTools: Update GenFw/GenFv to support LoongArch platform.

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053

C code changes for building EDK2 LoongArch platform.

For definitions of PE/COFF and LOONGARCH relocation types, see the
"Machine Types" and "Basic Relocation Types" sections of this URL for
LOONGARCH values:
https://docs.microsoft.com/en-us/windows/win32/debug/pe-format

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: Dongyan Qian <qiandongyan@loongson.cn>
Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Co-authored-by: Yang Zhou <zhouyang@loongson.cn>
Co-authored-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
This commit is contained in:
Chao Li
2022-09-06 21:00:07 +08:00
committed by mergify[bot]
parent 082b563fc4
commit 1aa311d175
7 changed files with 636 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
BaseTools/Source/C/Common/PeCoffLoaderEx.c
View File

@@ -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 +333,81 @@ PeCoffLoaderRelocateArmImage (
return RETURN_SUCCESS;
}
/**
Performs a LoongArch specific relocation fixup.
@param[in] Reloc Pointer to the relocation record.
@param[in, out] Fixup Pointer to the address to fix up.
@param[in, out] FixupData Pointer to a buffer to log the fixups.
@param[in] 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;
UINT64 Tmp1;
UINT64 Tmp2;
RelocType = ((*Reloc) >> 12);
Value = 0;
Tmp1 = 0;
Tmp2 = 0;
switch (RelocType) {
case EFI_IMAGE_REL_BASED_LOONGARCH64_MARK_LA:
// The next four instructions are used to load a 64 bit address, relocate all of them
Value = (*(UINT32 *)Fixup & 0x1ffffe0) << 7 | // lu12i.w 20bits from bit5
(*((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;
}