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BaseTools/GenFw: Enhance GenFw to support PRM GCC build

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3802

Since PRM module needs to support export table in PE-COFF, we'll
enhance GenFw tool to support this.

Add one export flag in GenFw tool. If export flag is set:
Step1: Scan ELF symbol table based on PRM module descriptor to get
descriptor offset address;
Step2: Find PRM handlers number and name in COFF file based on the
address from step1;
Step3: Write PRM info such as handler name and export RVA into COFF
export table.

PRM option currently only supports DXE RUNTIME driver and X64 arch.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Signed-off-by: Lixia Huang <lisa.huang@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
This commit is contained in:
Huang, Li-Xia
2022-03-14 13:27:21 +08:00
committed by mergify[bot]
parent c8ea48bdf9
commit 414cd2a4d5
5 changed files with 315 additions and 5 deletions
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43
BaseTools/Source/C/GenFw/ElfConvert.h
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@@ -24,6 +24,7 @@ extern UINT8 *mCoffFile;
extern UINT32 mTableOffset;
extern UINT32 mOutImageType;
extern UINT32 mFileBufferSize;
extern BOOLEAN mExportFlag;
//
// Common EFI specific data.
@@ -31,6 +32,44 @@ extern UINT32 mFileBufferSize;
#define ELF_HII_SECTION_NAME ".hii"
#define ELF_STRTAB_SECTION_NAME ".strtab"
#define MAX_COFF_ALIGNMENT 0x10000
#define ELF_SYMBOL_SECTION_NAME ".symtab"
//
// Platform Runtime Mechanism (PRM) specific data.
//
#define PRM_MODULE_EXPORT_SYMBOL_NUM 256
// <to-do> to include PRM header directly once PrmPkg is in main repo
#define PRM_HANDLER_NAME_MAXIMUM_LENGTH 128
#define PRM_MODULE_EXPORT_DESCRIPTOR_NAME "PrmModuleExportDescriptor"
#define PRM_MODULE_EXPORT_DESCRIPTOR_SIGNATURE SIGNATURE_64 ('P', 'R', 'M', '_', 'M', 'E', 'D', 'T')
#define PRM_MODULE_EXPORT_REVISION 0x0
//
// Platform Runtime Mechanism (PRM) Export Descriptor Structures
//
#pragma pack(push, 1)
typedef struct {
EFI_GUID PrmHandlerGuid;
CHAR8 PrmHandlerName[PRM_HANDLER_NAME_MAXIMUM_LENGTH];
} PRM_HANDLER_EXPORT_DESCRIPTOR_STRUCT;
typedef struct {
UINT64 Signature;
UINT16 Revision;
UINT16 NumberPrmHandlers;
EFI_GUID PlatformGuid;
EFI_GUID ModuleGuid;
} PRM_MODULE_EXPORT_DESCRIPTOR_STRUCT_HEADER;
typedef struct {
PRM_MODULE_EXPORT_DESCRIPTOR_STRUCT_HEADER Header;
PRM_HANDLER_EXPORT_DESCRIPTOR_STRUCT PrmHandlerExportDescriptors[1];
} PRM_MODULE_EXPORT_DESCRIPTOR_STRUCT;
#pragma pack(pop)
//
// Filter Types
@@ -38,7 +77,8 @@ extern UINT32 mFileBufferSize;
typedef enum {
SECTION_TEXT,
SECTION_HII,
SECTION_DATA
SECTION_DATA,
SECTION_SYMBOL
} SECTION_FILTER_TYPES;
@@ -50,6 +90,7 @@ typedef struct {
BOOLEAN (*WriteSections) (SECTION_FILTER_TYPES FilterType);
VOID (*WriteRelocations) ();
VOID (*WriteDebug) ();
VOID (*WriteExport) ();
VOID (*SetImageSize) ();
VOID (*CleanUp) ();