6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-04-09 16:45:03 +00:00
Code Issues Projects Releases Wiki Activity

MC: add and use an accessor for WinCFI

Browse Source 
This adds a utility method to access the WinCFI information in bulk and uses
that to iterate rather than requesting the count and individually iterating
them.  This is in preparation for restructuring WinCFI handling to enable more
clear sharing across architectures to enable unwind information emission for
Windows on ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212683 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool 2014-07-10 04:50:06 +00:00
parent 141d3e3015
commit 09f505a0a5
2 changed files with 18 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/llvm/MC/MCStreamer.h
View File

@ -243,6 +243,10 @@ public:
return *W64UnwindInfos[i];
}
ArrayRef<MCWin64EHUnwindInfo *> getW64UnwindInfos() const {
return W64UnwindInfos;
}
void generateCompactUnwindEncodings(MCAsmBackend *MAB);
/// @name Assembly File Formatting.

28
lib/MC/MCWin64EH.cpp
View File

@ -274,23 +274,23 @@ void MCWin64EHUnwindEmitter::EmitUnwindInfo(MCStreamer &streamer,
llvm::EmitUnwindInfo(streamer, info);
}
void MCWin64EHUnwindEmitter::Emit(MCStreamer &streamer) {
MCContext &context = streamer.getContext();
void MCWin64EHUnwindEmitter::Emit(MCStreamer &Streamer) {
MCContext &Context = Streamer.getContext();
// Emit the unwind info structs first.
for (unsigned i = 0; i < streamer.getNumW64UnwindInfos(); ++i) {
MCWin64EHUnwindInfo &info = streamer.getW64UnwindInfo(i);
const MCSection *xdataSect =
getWin64EHTableSection(GetSectionSuffix(info.Function), context);
streamer.SwitchSection(xdataSect);
llvm::EmitUnwindInfo(streamer, &info);
for (const auto &CFI : Streamer.getW64UnwindInfos()) {
const MCSection *XData =
getWin64EHTableSection(GetSectionSuffix(CFI->Function), Context);
Streamer.SwitchSection(XData);
EmitUnwindInfo(Streamer, CFI);
}
// Now emit RUNTIME_FUNCTION entries.
for (unsigned i = 0; i < streamer.getNumW64UnwindInfos(); ++i) {
MCWin64EHUnwindInfo &info = streamer.getW64UnwindInfo(i);
const MCSection *pdataSect =
getWin64EHFuncTableSection(GetSectionSuffix(info.Function), context);
streamer.SwitchSection(pdataSect);
EmitRuntimeFunction(streamer, &info);
for (const auto &CFI : Streamer.getW64UnwindInfos()) {
const MCSection *PData =
getWin64EHFuncTableSection(GetSectionSuffix(CFI->Function), Context);
Streamer.SwitchSection(PData);
EmitRuntimeFunction(Streamer, CFI);
}
}