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Put MCSectionCOFF::Name into the MCContext instead of leaking it.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99231 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jeffrey Yasskin
2010-03-22 23:26:12 +00:00
parent 3f4dcd92da
commit 1ccd91a5b1
2 changed files with 8 additions and 5 deletions
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7
include/llvm/MC/MCSection.h
View File

@@ -42,9 +42,8 @@ namespace llvm {
}; };
class MCSectionCOFF : public MCSection { class MCSectionCOFF : public MCSection {
// FIXME: This memory is leaked because MCSectionCOFF is bump pointer // The memory for this string is stored in the same MCContext as *this.
// allocated and this never gets freed. StringRef Name;
std::string Name;
/// IsDirective - This is true if the section name is a directive, not /// IsDirective - This is true if the section name is a directive, not
/// something that should be printed with ".section". /// something that should be printed with ".section".
@@ -61,7 +60,7 @@ namespace llvm {
static MCSectionCOFF *Create(StringRef Name, bool IsDirective, static MCSectionCOFF *Create(StringRef Name, bool IsDirective,
SectionKind K, MCContext &Ctx); SectionKind K, MCContext &Ctx);
const std::string &getName() const { return Name; } StringRef getName() const { return Name; }
bool isDirective() const { return IsDirective; } bool isDirective() const { return IsDirective; }
virtual void PrintSwitchToSection(const MCAsmInfo &MAI, virtual void PrintSwitchToSection(const MCAsmInfo &MAI,

6
lib/MC/MCSection.cpp
View File

@@ -26,7 +26,11 @@ MCSection::~MCSection() {
MCSectionCOFF *MCSectionCOFF:: MCSectionCOFF *MCSectionCOFF::
Create(StringRef Name, bool IsDirective, SectionKind K, MCContext &Ctx) { Create(StringRef Name, bool IsDirective, SectionKind K, MCContext &Ctx) {
return new (Ctx) MCSectionCOFF(Name, IsDirective, K); char *NameCopy = static_cast<char*>(
Ctx.Allocate(Name.size(), /*Alignment=*/1));
memcpy(NameCopy, Name.data(), Name.size());
return new (Ctx) MCSectionCOFF(StringRef(NameCopy, Name.size()),
IsDirective, K);
} }
void MCSectionCOFF::PrintSwitchToSection(const MCAsmInfo &MAI, void MCSectionCOFF::PrintSwitchToSection(const MCAsmInfo &MAI,