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Split WinCOFFObjectWriter::defineSection. NFC.

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llvm-svn: 295128
This commit is contained in:
Rui Ueyama 2017-02-15 00:15:54 +00:00
parent b2f6511e57
commit 48672807eb
1 changed files with 38 additions and 47 deletions
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85
lib/MC/WinCOFFObjectWriter.cpp
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@ -239,11 +239,47 @@ COFFSection *WinCOFFObjectWriter::createSection(StringRef Name) {
return Sections.back().get();
}
static uint32_t getAlignment(const MCSectionCOFF &Sec) {
switch (Sec.getAlignment()) {
case 1:
return COFF::IMAGE_SCN_ALIGN_1BYTES;
case 2:
return COFF::IMAGE_SCN_ALIGN_2BYTES;
case 4:
return COFF::IMAGE_SCN_ALIGN_4BYTES;
case 8:
return COFF::IMAGE_SCN_ALIGN_8BYTES;
case 16:
return COFF::IMAGE_SCN_ALIGN_16BYTES;
case 32:
return COFF::IMAGE_SCN_ALIGN_32BYTES;
case 64:
return COFF::IMAGE_SCN_ALIGN_64BYTES;
case 128:
return COFF::IMAGE_SCN_ALIGN_128BYTES;
case 256:
return COFF::IMAGE_SCN_ALIGN_256BYTES;
case 512:
return COFF::IMAGE_SCN_ALIGN_512BYTES;
case 1024:
return COFF::IMAGE_SCN_ALIGN_1024BYTES;
case 2048:
return COFF::IMAGE_SCN_ALIGN_2048BYTES;
case 4096:
return COFF::IMAGE_SCN_ALIGN_4096BYTES;
case 8192:
return COFF::IMAGE_SCN_ALIGN_8192BYTES;
}
llvm_unreachable("unsupported section alignment");
}
/// This function takes a section data object from the assembler
/// and creates the associated COFF section staging object.
void WinCOFFObjectWriter::defineSection(MCSectionCOFF const &Sec) {
void WinCOFFObjectWriter::defineSection(const MCSectionCOFF &Sec) {
COFFSection *coff_section = createSection(Sec.getSectionName());
COFFSymbol *coff_symbol = createSymbol(Sec.getSectionName());
// Create a COMDAT symbol if needed.
if (Sec.getSelection() != COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
if (const MCSymbol *S = Sec.getCOMDATSymbol()) {
COFFSymbol *COMDATSymbol = GetOrCreateCOFFSymbol(S);
@ -266,52 +302,7 @@ void WinCOFFObjectWriter::defineSection(MCSectionCOFF const &Sec) {
coff_section->Header.Characteristics = Sec.getCharacteristics();
uint32_t &Characteristics = coff_section->Header.Characteristics;
switch (Sec.getAlignment()) {
case 1:
Characteristics |= COFF::IMAGE_SCN_ALIGN_1BYTES;
break;
case 2:
Characteristics |= COFF::IMAGE_SCN_ALIGN_2BYTES;
break;
case 4:
Characteristics |= COFF::IMAGE_SCN_ALIGN_4BYTES;
break;
case 8:
Characteristics |= COFF::IMAGE_SCN_ALIGN_8BYTES;
break;
case 16:
Characteristics |= COFF::IMAGE_SCN_ALIGN_16BYTES;
break;
case 32:
Characteristics |= COFF::IMAGE_SCN_ALIGN_32BYTES;
break;
case 64:
Characteristics |= COFF::IMAGE_SCN_ALIGN_64BYTES;
break;
case 128:
Characteristics |= COFF::IMAGE_SCN_ALIGN_128BYTES;
break;
case 256:
Characteristics |= COFF::IMAGE_SCN_ALIGN_256BYTES;
break;
case 512:
Characteristics |= COFF::IMAGE_SCN_ALIGN_512BYTES;
break;
case 1024:
Characteristics |= COFF::IMAGE_SCN_ALIGN_1024BYTES;
break;
case 2048:
Characteristics |= COFF::IMAGE_SCN_ALIGN_2048BYTES;
break;
case 4096:
Characteristics |= COFF::IMAGE_SCN_ALIGN_4096BYTES;
break;
case 8192:
Characteristics |= COFF::IMAGE_SCN_ALIGN_8192BYTES;
break;
default:
llvm_unreachable("unsupported section alignment");
}
Characteristics |= getAlignment(Sec);
// Bind internal COFF section to MC section.
coff_section->MCSection = &Sec;