[llvm-commits] [llvm] r122268 - in /llvm/trunk: lib/MC/ELFObjectWriter.cpp test/MC/ELF/set.s
Roman Divacky
rdivacky at freebsd.org
Mon Dec 20 13:14:39 PST 2010
Author: rdivacky
Date: Mon Dec 20 15:14:39 2010
New Revision: 122268
URL: http://llvm.org/viewvc/llvm-project?rev=122268&view=rev
Log:
Set the value of absolute symbols.
Modified:
llvm/trunk/lib/MC/ELFObjectWriter.cpp
llvm/trunk/test/MC/ELF/set.s
Modified: llvm/trunk/lib/MC/ELFObjectWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/ELFObjectWriter.cpp?rev=122268&r1=122267&r2=122268&view=diff
==============================================================================
--- llvm/trunk/lib/MC/ELFObjectWriter.cpp (original)
+++ llvm/trunk/lib/MC/ELFObjectWriter.cpp Mon Dec 20 15:14:39 2010
@@ -518,6 +518,15 @@
return Data.getCommonAlignment();
const MCSymbol &Symbol = Data.getSymbol();
+
+ if (Symbol.isAbsolute() && Symbol.isVariable()) {
+ if (const MCExpr *Value = Symbol.getVariableValue()) {
+ int64_t IntValue;
+ if (Value->EvaluateAsAbsolute(IntValue, Layout))
+ return (uint64_t)IntValue;
+ }
+ }
+
if (!Symbol.isInSection())
return 0;
Modified: llvm/trunk/test/MC/ELF/set.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ELF/set.s?rev=122268&r1=122267&r2=122268&view=diff
==============================================================================
--- llvm/trunk/test/MC/ELF/set.s (original)
+++ llvm/trunk/test/MC/ELF/set.s Mon Dec 20 15:14:39 2010
@@ -1,5 +1,18 @@
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck %s
+// Test that we emit the correct value.
+
+.set kernbase,0xffffffff80000000
+
+// CHECK: (('st_name', 0x00000001) # 'kernbase'
+// CHECK-NEXT: ('st_bind', 0x00000000)
+// CHECK-NEXT: ('st_type', 0x00000000)
+// CHECK-NEXT: ('st_other', 0x00000000)
+// CHECK-NEXT: ('st_shndx', 0x0000fff1)
+// CHECK-NEXT: ('st_value', 0xffffffff80000000)
+// CHECK-NEXT: ('st_size', 0x0000000000000000)
+// CHECK-NEXT: ),
+
// Test that we accept .set of a symbol after it has been used in a statement.
jmp foo
@@ -11,7 +24,7 @@
.set foo2,bar2
// Test that there is an undefined reference to bar
-// CHECK: (('st_name', 0x00000001) # 'bar'
+// CHECK: (('st_name', 0x0000000a) # 'bar'
// CHECK-NEXT: ('st_bind', 0x00000001)
// CHECK-NEXT: ('st_type', 0x00000000)
// CHECK-NEXT: ('st_other', 0x00000000)
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