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Clarify code by adding a comment. 

llvm-svn: 315139
This commit is contained in:
Rui Ueyama 2017-10-07 00:58:19 +00:00
parent 0e2bfb1e3b
commit c8e0f79b90
1 changed files with 7 additions and 4 deletions
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11
lld/ELF/OutputSections.cpp
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@ -94,7 +94,13 @@ void OutputSection::addSection(InputSection *IS) {
return;
}
if (Live) {
if (!Live) {
// If IS is the first section to be added to this section,
// initialize Type by IS->Type.
Live = true;
Type = IS->Type;
} else {
// Otherwise, check if new type or flags are compatible with existing ones.
if ((Flags & (SHF_ALLOC | SHF_TLS)) != (IS->Flags & (SHF_ALLOC | SHF_TLS)))
error("incompatible section flags for " + Name + "\n>>> " + toString(IS) +
": 0x" + utohexstr(IS->Flags) + "\n>>> output section " + Name +
@ -109,11 +115,8 @@ void OutputSection::addSection(InputSection *IS) {
getELFSectionTypeName(Config->EMachine, Type));
Type = SHT_PROGBITS;
}
} else {
Type = IS->Type;
}
Live = true;
IS->Parent = this;
Flags |= IS->Flags;
this->updateAlignment(IS->Alignment);