[MC] Pass MCSymbolData to needsRelocateWithSymbol

As discussed in a previous checking to support the .localentry
directive on PowerPC, we need to inspect the actual target symbol
in needsRelocateWithSymbol to make the appropriate decision based
on that symbol's st_other bits.

Currently, needsRelocateWithSymbol does not get the target symbol.
However, it is directly available to its sole caller.  This patch
therefore simply extends the needsRelocateWithSymbol by a new
parameter "const MCSymbolData &SD", passes in the target symbol,
and updates all derived implementations.

In particular, in the PowerPC implementation, this patch removes
the FIXME added by the previous checkin.

llvm-svn: 213487

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
index 1c84263..a86601b 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
@@ -37,7 +37,8 @@ namespace {
     unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
                           bool IsPCRel) const override;
 
-    bool needsRelocateWithSymbol(unsigned Type) const override;
+    bool needsRelocateWithSymbol(const MCSymbolData &SD,
+                                 unsigned Type) const override;
   };
 }
 
@@ -48,7 +49,8 @@ ARMELFObjectWriter::ARMELFObjectWriter(uint8_t OSABI)
 
 ARMELFObjectWriter::~ARMELFObjectWriter() {}
 
-bool ARMELFObjectWriter::needsRelocateWithSymbol(unsigned Type) const {
+bool ARMELFObjectWriter::needsRelocateWithSymbol(const MCSymbolData &SD,
+                                                 unsigned Type) const {
   // FIXME: This is extremelly conservative. This really needs to use a
   // whitelist with a clear explanation for why each realocation needs to
   // point to the symbol, not to the section.