[llvm-commits] [llvm] r115699 - in /llvm/trunk: lib/MC/ELFObjectWriter.cpp test/MC/ELF/alias.s
Rafael Espindola
rafael.espindola at gmail.com
Tue Oct 5 15:26:43 PDT 2010
Author: rafael
Date: Tue Oct 5 17:26:43 2010
New Revision: 115699
URL: http://llvm.org/viewvc/llvm-project?rev=115699&view=rev
Log:
Implement more alias cases.
Modified:
llvm/trunk/lib/MC/ELFObjectWriter.cpp
llvm/trunk/test/MC/ELF/alias.s
Modified: llvm/trunk/lib/MC/ELFObjectWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/ELFObjectWriter.cpp?rev=115699&r1=115698&r2=115699&view=diff
==============================================================================
--- llvm/trunk/lib/MC/ELFObjectWriter.cpp (original)
+++ llvm/trunk/lib/MC/ELFObjectWriter.cpp Tue Oct 5 17:26:43 2010
@@ -807,9 +807,20 @@
MSD.SymbolData = it;
MSD.StringIndex = Entry;
+ // FIXME: There is duplicated code with the local case.
if (it->isCommon()) {
MSD.SectionIndex = ELF::SHN_COMMON;
ExternalSymbolData.push_back(MSD);
+ } else if (Symbol.isVariable()) {
+ const MCExpr *Value = Symbol.getVariableValue();
+ assert (Value->getKind() == MCExpr::SymbolRef && "Unimplemented");
+ const MCSymbolRefExpr *Ref = static_cast<const MCSymbolRefExpr*>(Value);
+ const MCSymbol &RefSymbol = Ref->getSymbol();
+ if (RefSymbol.isDefined()) {
+ MSD.SectionIndex = SectionIndexMap.lookup(&RefSymbol.getSection());
+ assert(MSD.SectionIndex && "Invalid section index!");
+ ExternalSymbolData.push_back(MSD);
+ }
} else if (Symbol.isUndefined()) {
MSD.SectionIndex = ELF::SHN_UNDEF;
// FIXME: Undefined symbols are global, but this is the first place we
Modified: llvm/trunk/test/MC/ELF/alias.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ELF/alias.s?rev=115699&r1=115698&r2=115699&view=diff
==============================================================================
--- llvm/trunk/test/MC/ELF/alias.s (original)
+++ llvm/trunk/test/MC/ELF/alias.s Tue Oct 5 17:26:43 2010
@@ -3,6 +3,13 @@
foo:
bar = foo
+ .globl foo2
+foo2 = bar2
+
+foo3:
+ .globl bar3
+bar3 = foo3
+
// CHECK: # Symbol 1
// CHECK-NEXT: (('st_name', 5) # 'bar'
// CHECK-NEXT: ('st_bind', 0)
@@ -20,3 +27,33 @@
// CHECK-NEXT: ('st_shndx', 1)
// CHECK-NEXT: ('st_value', 0)
// CHECK-NEXT: ('st_size', 0)
+// CHECK: # Symbol 3
+// CHECK-NEXT: (('st_name', 9) # 'foo3'
+// CHECK-NEXT: ('st_bind', 0)
+// CHECK-NEXT: ('st_type', 0)
+// CHECK-NEXT: ('st_other', 0)
+// CHECK-NEXT: ('st_shndx', 1)
+// CHECK-NEXT: ('st_value', 0)
+// CHECK-NEXT: ('st_size', 0)
+// CHECK: # Symbol 4
+// CHECK-NEXT: (('st_name', 0) # ''
+// CHECK: # Symbol 5
+// CHECK-NEXT: (('st_name', 0) # ''
+// CHECK: # Symbol 6
+// CHECK-NEXT: (('st_name', 0) # ''
+// CHECK: # Symbol 7
+// CHECK-NEXT: (('st_name', 24) # 'bar3'
+// CHECK-NEXT: ('st_bind', 1)
+// CHECK-NEXT: ('st_type', 0)
+// CHECK-NEXT: ('st_other', 0)
+// CHECK-NEXT: ('st_shndx', 1)
+// CHECK-NEXT: ('st_value', 0)
+// CHECK-NEXT: ('st_size', 0)
+// CHECK: # Symbol 8
+// CHECK-NEXT: (('st_name', 19) # 'bar2'
+// CHECK-NEXT: ('st_bind', 1)
+// CHECK-NEXT: ('st_type', 0)
+// CHECK-NEXT: ('st_other', 0)
+// CHECK-NEXT: ('st_shndx', 0)
+// CHECK-NEXT: ('st_value', 0)
+// CHECK-NEXT: ('st_size', 0)
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