forked from OSchip/llvm-project
COFF: Write import library symbols to a symbol table.
Previously no __imp_ symbols nor dllimport thunk functions were written to a symbol table. llvm-svn: 243350
This commit is contained in:
Rui Ueyama
parent
41ba2b47da
commit
a8eed749a2
|
|
@ -305,17 +305,13 @@ size_t Writer::addEntryToStringTable(StringRef Str) {
|
|||
return OffsetOfEntry;
|
||||
}
|
||||
|
||||
coff_symbol16 Writer::createSymbol(DefinedRegular *D) {
|
||||
uint64_t RVA = D->getRVA();
|
||||
OutputSection *Sec = nullptr;
|
||||
for (OutputSection *S : OutputSections) {
|
||||
if (S->getRVA() > RVA)
|
||||
break;
|
||||
Sec = S;
|
||||
}
|
||||
Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {
|
||||
if (auto *D = dyn_cast<DefinedRegular>(Def))
|
||||
if (!D->isLive())
|
||||
return None;
|
||||
|
||||
coff_symbol16 Sym;
|
||||
StringRef Name = D->getName();
|
||||
StringRef Name = Def->getName();
|
||||
if (Name.size() > COFF::NameSize) {
|
||||
Sym.Name.Offset.Zeroes = 0;
|
||||
Sym.Name.Offset.Offset = addEntryToStringTable(Name);
|
||||
|
|
@ -323,12 +319,36 @@ coff_symbol16 Writer::createSymbol(DefinedRegular *D) {
|
|||
memset(Sym.Name.ShortName, 0, COFF::NameSize);
|
||||
memcpy(Sym.Name.ShortName, Name.data(), Name.size());
|
||||
}
|
||||
COFFSymbolRef DSymRef = D->getCOFFSymbol();
|
||||
Sym.Value = RVA - Sec->getRVA();
|
||||
Sym.SectionNumber = Sec->SectionIndex;
|
||||
Sym.Type = DSymRef.getType();
|
||||
Sym.StorageClass = DSymRef.getStorageClass();
|
||||
|
||||
if (auto *D = dyn_cast<DefinedCOFF>(Def)) {
|
||||
COFFSymbolRef Ref = D->getCOFFSymbol();
|
||||
Sym.Type = Ref.getType();
|
||||
Sym.StorageClass = Ref.getStorageClass();
|
||||
} else {
|
||||
Sym.Type = IMAGE_SYM_TYPE_NULL;
|
||||
Sym.StorageClass = IMAGE_SYM_CLASS_EXTERNAL;
|
||||
}
|
||||
Sym.NumberOfAuxSymbols = 0;
|
||||
|
||||
switch (Def->kind()) {
|
||||
case SymbolBody::DefinedAbsoluteKind:
|
||||
case SymbolBody::DefinedRelativeKind:
|
||||
Sym.Value = Def->getRVA();
|
||||
Sym.SectionNumber = IMAGE_SYM_ABSOLUTE;
|
||||
break;
|
||||
default: {
|
||||
uint64_t RVA = Def->getRVA();
|
||||
OutputSection *Sec = nullptr;
|
||||
for (OutputSection *S : OutputSections) {
|
||||
if (S->getRVA() > RVA)
|
||||
break;
|
||||
Sec = S;
|
||||
}
|
||||
Sym.Value = RVA - Sec->getRVA();
|
||||
Sym.SectionNumber = Sec->SectionIndex;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return Sym;
|
||||
}
|
||||
|
||||
|
|
@ -346,9 +366,14 @@ void Writer::createSymbolAndStringTable() {
|
|||
|
||||
for (ObjectFile *File : Symtab->ObjectFiles)
|
||||
for (SymbolBody *B : File->getSymbols())
|
||||
if (auto *D = dyn_cast<DefinedRegular>(B))
|
||||
if (D->isLive())
|
||||
OutputSymtab.push_back(createSymbol(D));
|
||||
if (auto *D = dyn_cast<Defined>(B))
|
||||
if (Optional<coff_symbol16> Sym = createSymbol(D))
|
||||
OutputSymtab.push_back(*Sym);
|
||||
|
||||
for (ImportFile *File : Symtab->ImportFiles)
|
||||
for (SymbolBody *B : File->getSymbols())
|
||||
if (Optional<coff_symbol16> Sym = createSymbol(cast<Defined>(B)))
|
||||
OutputSymtab.push_back(*Sym);
|
||||
|
||||
OutputSection *LastSection = OutputSections.back();
|
||||
// We position the symbol table to be adjacent to the end of the last section.
|
||||
|
|
|
|||
|
|
@ -13,6 +13,7 @@
|
|||
#include "DLL.h"
|
||||
#include "InputFiles.h"
|
||||
#include "SymbolTable.h"
|
||||
#include "llvm/ADT/Optional.h"
|
||||
#include "llvm/Support/FileOutputBuffer.h"
|
||||
#include <memory>
|
||||
#include <vector>
|
||||
|
|
@ -94,7 +95,7 @@ private:
|
|||
void sortExceptionTable();
|
||||
void applyRelocations();
|
||||
|
||||
coff_symbol16 createSymbol(DefinedRegular *D);
|
||||
llvm::Optional<coff_symbol16> createSymbol(Defined *D);
|
||||
size_t addEntryToStringTable(StringRef Str);
|
||||
|
||||
OutputSection *findSection(StringRef Name);
|
||||
|
|
|
|||
|
|
@ -1,42 +1,105 @@
|
|||
# RUN: yaml2obj < %s > %t.obj
|
||||
# RUN: lld -flavor link2 /debug /out:%t.exe /entry:main %t.obj
|
||||
# RUN: lld -flavor link2 /debug /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib
|
||||
# RUN: llvm-readobj -symbols %t.exe | FileCheck %s
|
||||
|
||||
# CHECK: Symbols [
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: .text
|
||||
# CHECK-NEXT: Value: 0
|
||||
# CHECK-NEXT: Section: .text
|
||||
# CHECK-NEXT: Section: .text (2)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: Static
|
||||
# CHECK-NEXT: StorageClass: Static (0x3)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: f
|
||||
# CHECK-NEXT: Value: 2
|
||||
# CHECK-NEXT: Section: .text
|
||||
# CHECK-NEXT: Name: .text2
|
||||
# CHECK-NEXT: Value: 0
|
||||
# CHECK-NEXT: Section: .text (2)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External
|
||||
# CHECK-NEXT: StorageClass: Static (0x3)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: g
|
||||
# CHECK-NEXT: Value: 4
|
||||
# CHECK-NEXT: Section: .text
|
||||
# CHECK-NEXT: Name: .data
|
||||
# CHECK-NEXT: Value: 0
|
||||
# CHECK-NEXT: Section: .data (1)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External
|
||||
# CHECK-NEXT: StorageClass: Static (0x3)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: message
|
||||
# CHECK-NEXT: Value: 6
|
||||
# CHECK-NEXT: Section: .text2 (3)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: Static (0x3)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: main
|
||||
# CHECK-NEXT: Value: 0
|
||||
# CHECK-NEXT: Section: .text
|
||||
# CHECK-NEXT: Section: .text (2)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External
|
||||
# CHECK-NEXT: StorageClass: External (0x2)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: caption
|
||||
# CHECK-NEXT: Value: 0
|
||||
# CHECK-NEXT: Section: .text2 (3)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: Static (0x3)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: abs_symbol
|
||||
# CHECK-NEXT: Value: 2662186735
|
||||
# CHECK-NEXT: Section: IMAGE_SYM_ABSOLUTE (-1)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External (0x2)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: __imp_ExitProcess
|
||||
# CHECK-NEXT: Value: 64
|
||||
# CHECK-NEXT: Section: .idata (4)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External (0x2)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: ExitProcess
|
||||
# CHECK-NEXT: Value: 64
|
||||
# CHECK-NEXT: Section: .text (2)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External (0x2)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: __imp_MessageBoxA
|
||||
# CHECK-NEXT: Value: 72
|
||||
# CHECK-NEXT: Section: .idata (4)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External (0x2)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Symbol {
|
||||
# CHECK-NEXT: Name: MessageBoxA
|
||||
# CHECK-NEXT: Value: 80
|
||||
# CHECK-NEXT: Section: .text (2)
|
||||
# CHECK-NEXT: BaseType: Null (0x0)
|
||||
# CHECK-NEXT: ComplexType: Null (0x0)
|
||||
# CHECK-NEXT: StorageClass: External (0x2)
|
||||
# CHECK-NEXT: AuxSymbolCount: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: ]
|
||||
|
|
@ -44,13 +107,65 @@
|
|||
---
|
||||
header:
|
||||
Machine: IMAGE_FILE_MACHINE_AMD64
|
||||
Characteristics: [ ]
|
||||
Characteristics: []
|
||||
sections:
|
||||
- Name: .text
|
||||
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
|
||||
Alignment: 4096
|
||||
SectionData: B800000000000000005068000000000000000068000000000000000050E8000000000000000050E8000000000000000050E80000000000000000
|
||||
Relocations:
|
||||
- VirtualAddress: 0
|
||||
SymbolName: abs_symbol
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- VirtualAddress: 7
|
||||
SymbolName: caption
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- VirtualAddress: 12
|
||||
SymbolName: message
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- VirtualAddress: 18
|
||||
SymbolName: MessageBoxA
|
||||
Type: IMAGE_REL_AMD64_REL32
|
||||
- VirtualAddress: 24
|
||||
SymbolName: ExitProcess
|
||||
Type: IMAGE_REL_AMD64_REL32
|
||||
- VirtualAddress: 30
|
||||
SymbolName: __ImageBase
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- Name: .text2
|
||||
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
|
||||
Alignment: 4096
|
||||
SectionData: B800000000000000005068000000000000000068000000000000000050E8000000000000000050E8000000000000000050E80000000000000000
|
||||
Relocations:
|
||||
- VirtualAddress: 0
|
||||
SymbolName: abs_symbol
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- VirtualAddress: 7
|
||||
SymbolName: caption
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- VirtualAddress: 12
|
||||
SymbolName: message
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- VirtualAddress: 18
|
||||
SymbolName: MessageBoxA
|
||||
Type: IMAGE_REL_AMD64_REL32
|
||||
- VirtualAddress: 24
|
||||
SymbolName: ExitProcess
|
||||
Type: IMAGE_REL_AMD64_REL32
|
||||
- VirtualAddress: 30
|
||||
SymbolName: __ImageBase
|
||||
Type: IMAGE_REL_AMD64_ADDR64
|
||||
- Name: .data
|
||||
Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
|
||||
Alignment: 4
|
||||
SectionData: B82A00
|
||||
SectionData: 48656C6C6F0048656C6C6F20576F726C6400
|
||||
symbols:
|
||||
- Name: "@comp.id"
|
||||
Value: 10394907
|
||||
SectionNumber: 65535
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_STATIC
|
||||
- Name: .text
|
||||
Value: 0
|
||||
SectionNumber: 1
|
||||
|
|
@ -58,27 +173,75 @@ symbols:
|
|||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_STATIC
|
||||
SectionDefinition:
|
||||
Length: 6
|
||||
Length: 28
|
||||
NumberOfRelocations: 6
|
||||
NumberOfLinenumbers: 0
|
||||
CheckSum: 0
|
||||
Number: 0
|
||||
- Name: .text2
|
||||
Value: 0
|
||||
SectionNumber: 1
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_STATIC
|
||||
SectionDefinition:
|
||||
Length: 28
|
||||
NumberOfRelocations: 6
|
||||
NumberOfLinenumbers: 0
|
||||
CheckSum: 0
|
||||
Number: 0
|
||||
- Name: .data
|
||||
Value: 0
|
||||
SectionNumber: 3
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_STATIC
|
||||
SectionDefinition:
|
||||
Length: 18
|
||||
NumberOfRelocations: 0
|
||||
NumberOfLinenumbers: 0
|
||||
CheckSum: 0
|
||||
Number: 0
|
||||
- Name: f
|
||||
Value: 2
|
||||
SectionNumber: 1
|
||||
- Name: MessageBoxA
|
||||
Value: 0
|
||||
SectionNumber: 0
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
|
||||
- Name: g
|
||||
Value: 4
|
||||
SectionNumber: 1
|
||||
- Name: ExitProcess
|
||||
Value: 0
|
||||
SectionNumber: 0
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
|
||||
- Name: message
|
||||
Value: 6
|
||||
SectionNumber: 2
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_STATIC
|
||||
- Name: main
|
||||
Value: 0
|
||||
SectionNumber: 1
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
|
||||
- Name: caption
|
||||
Value: 0
|
||||
SectionNumber: 2
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_STATIC
|
||||
- Name: abs_symbol
|
||||
Value: 0xDEADBEEF
|
||||
SectionNumber: -1
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
|
||||
- Name: __ImageBase
|
||||
Value: 0
|
||||
SectionNumber: 0
|
||||
SimpleType: IMAGE_SYM_TYPE_NULL
|
||||
ComplexType: IMAGE_SYM_DTYPE_NULL
|
||||
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
|
||||
...
|
||||
|
|
|
|||
Loading…
Reference in New Issue