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authorChris Lattner <sabre@nondot.org>2010-01-16 18:37:32 +0000
committerChris Lattner <sabre@nondot.org>2010-01-16 18:37:32 +0000
commit7a2ba94d03b43f41b54872dacd7b2250dde4c7bd (patch)
treeb167011b1fa1c795bf90bb05eb25578292fdbf67 /lib/CodeGen
parent08ce3b473d06e0f7806df3d44b7b36ac40c58803 (diff)
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rename GetPrivateGlobalValueSymbolStub -> GetSymbolWithGlobalValueBase,
and add an explicit ForcePrivate argument. Switch FunctionEHFrameInfo to be MCSymbol based instead of string based. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93646 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
-rw-r--r--lib/CodeGen/AsmPrinter/AsmPrinter.cpp11
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfException.cpp52
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfException.h8
3 files changed, 45 insertions, 26 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index c83a0da..4a85c84 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1719,13 +1719,14 @@ MCSymbol *AsmPrinter::GetGlobalValueSymbol(const GlobalValue *GV) const {
return OutContext.GetOrCreateSymbol(NameStr.str());
}
-/// GetPrivateGlobalValueSymbolStub - Return the MCSymbol for a symbol with
+/// GetSymbolWithGlobalValueBase - Return the MCSymbol for a symbol with
/// global value name as its base, with the specified suffix, and where the
-/// symbol is forced to have private linkage.
-MCSymbol *AsmPrinter::GetPrivateGlobalValueSymbolStub(const GlobalValue *GV,
- StringRef Suffix) const {
+/// symbol is forced to have private linkage if ForcePrivate is true.
+MCSymbol *AsmPrinter::GetSymbolWithGlobalValueBase(const GlobalValue *GV,
+ StringRef Suffix,
+ bool ForcePrivate) const {
SmallString<60> NameStr;
- Mang->getNameWithPrefix(NameStr, GV, true);
+ Mang->getNameWithPrefix(NameStr, GV, ForcePrivate);
NameStr.append(Suffix.begin(), Suffix.end());
return OutContext.GetOrCreateSymbol(NameStr.str());
}
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index c1d3f49..31f6a38 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -22,6 +22,7 @@
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
@@ -230,17 +231,26 @@ void DwarfException::EmitFDE(const FunctionEHFrameInfo &EHFrameInfo) {
// Externally visible entry into the functions eh frame info. If the
// corresponding function is static, this should not be externally visible.
if (!TheFunc->hasLocalLinkage())
- if (const char *GlobalEHDirective = MAI->getGlobalEHDirective())
- O << GlobalEHDirective << EHFrameInfo.FnName << '\n';
+ if (const char *GlobalEHDirective = MAI->getGlobalEHDirective()) {
+ O << GlobalEHDirective;
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << '\n';
+ }
// If corresponding function is weak definition, this should be too.
- if (TheFunc->isWeakForLinker() && MAI->getWeakDefDirective())
- O << MAI->getWeakDefDirective() << EHFrameInfo.FnName << '\n';
+ if (TheFunc->isWeakForLinker() && MAI->getWeakDefDirective()) {
+ O << MAI->getWeakDefDirective();
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << '\n';
+ }
// If corresponding function is hidden, this should be too.
if (TheFunc->hasHiddenVisibility())
- if (const char *HiddenDirective = MAI->getHiddenDirective())
- O << HiddenDirective << EHFrameInfo.FnName << '\n' ;
+ if (const char *HiddenDirective = MAI->getHiddenDirective()) {
+ O << HiddenDirective;
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << '\n';
+ }
// If there are no calls then you can't unwind. This may mean we can omit the
// EH Frame, but some environments do not handle weak absolute symbols. If
@@ -250,14 +260,19 @@ void DwarfException::EmitFDE(const FunctionEHFrameInfo &EHFrameInfo) {
(!TheFunc->isWeakForLinker() ||
!MAI->getWeakDefDirective() ||
MAI->getSupportsWeakOmittedEHFrame())) {
- O << EHFrameInfo.FnName << " = 0\n";
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << " = 0\n";
// This name has no connection to the function, so it might get
// dead-stripped when the function is not, erroneously. Prohibit
// dead-stripping unconditionally.
- if (const char *UsedDirective = MAI->getUsedDirective())
- O << UsedDirective << EHFrameInfo.FnName << "\n\n";
+ if (const char *UsedDirective = MAI->getUsedDirective()) {
+ O << UsedDirective;
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << "\n\n";
+ }
} else {
- O << EHFrameInfo.FnName << ":\n";
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << ":\n";
// EH frame header.
EmitDifference("eh_frame_end", EHFrameInfo.Number,
@@ -328,8 +343,11 @@ void DwarfException::EmitFDE(const FunctionEHFrameInfo &EHFrameInfo) {
// on unused functions (calling undefined externals) being dead-stripped to
// link correctly. Yes, there really is.
if (MMI->isUsedFunction(EHFrameInfo.function))
- if (const char *UsedDirective = MAI->getUsedDirective())
- O << UsedDirective << EHFrameInfo.FnName << "\n\n";
+ if (const char *UsedDirective = MAI->getUsedDirective()) {
+ O << UsedDirective;
+ EHFrameInfo.FunctionEHSym->print(O, MAI);
+ O << "\n\n";
+ }
}
Asm->EOL();
@@ -928,7 +946,7 @@ void DwarfException::EmitExceptionTable() {
PrintRelDirective();
if (GV) {
- O << Asm->Mang->getMangledName(GV);
+ Asm->GetGlobalValueSymbol(GV)->print(O, MAI);
} else {
O << "0x0";
}
@@ -1019,12 +1037,12 @@ void DwarfException::EndFunction() {
EmitLabel("eh_func_end", SubprogramCount);
EmitExceptionTable();
- std::string FunctionEHName =
- Asm->Mang->getMangledName(MF->getFunction(), ".eh",
- Asm->MAI->is_EHSymbolPrivate());
+ const MCSymbol *FunctionEHSym =
+ Asm->GetSymbolWithGlobalValueBase(MF->getFunction(), ".eh",
+ Asm->MAI->is_EHSymbolPrivate());
// Save EH frame information
- EHFrames.push_back(FunctionEHFrameInfo(FunctionEHName, SubprogramCount,
+ EHFrames.push_back(FunctionEHFrameInfo(FunctionEHSym, SubprogramCount,
MMI->getPersonalityIndex(),
MF->getFrameInfo()->hasCalls(),
!MMI->getLandingPads().empty(),
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.h b/lib/CodeGen/AsmPrinter/DwarfException.h
index aa01c5b..c674fe5 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.h
+++ b/lib/CodeGen/AsmPrinter/DwarfException.h
@@ -34,19 +34,19 @@ class raw_ostream;
///
class DwarfException : public Dwarf {
struct FunctionEHFrameInfo {
- std::string FnName;
+ const MCSymbol *FunctionEHSym; // L_foo.eh
unsigned Number;
unsigned PersonalityIndex;
bool hasCalls;
bool hasLandingPads;
std::vector<MachineMove> Moves;
- const Function * function;
+ const Function *function;
- FunctionEHFrameInfo(const std::string &FN, unsigned Num, unsigned P,
+ FunctionEHFrameInfo(const MCSymbol *EHSym, unsigned Num, unsigned P,
bool hC, bool hL,
const std::vector<MachineMove> &M,
const Function *f):
- FnName(FN), Number(Num), PersonalityIndex(P),
+ FunctionEHSym(EHSym), Number(Num), PersonalityIndex(P),
hasCalls(hC), hasLandingPads(hL), Moves(M), function (f) { }
};
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