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| author | Roman Divacky <rdivacky@freebsd.org> | 2010-12-20 21:14:39 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@freebsd.org> | 2010-12-20 21:14:39 +0000 |
| commit | d149186e156fdd44e3cca988949cf3e5e6940863 (patch) | |
| tree | 74efac118ca0a68c975251d77915be76c8ec7fbe | |
| parent | d7a0852464ab05327e949fc232138a2b85e4c177 (diff) | |
Set the value of absolute symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122268 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/MC/ELFObjectWriter.cpp | 9 | ||||
| -rw-r--r-- | test/MC/ELF/set.s | 15 |
2 files changed, 23 insertions, 1 deletions
diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp index 1bb47751ed..bb523cefed 100644 --- a/lib/MC/ELFObjectWriter.cpp +++ b/lib/MC/ELFObjectWriter.cpp @@ -518,6 +518,15 @@ static uint64_t SymbolValue(MCSymbolData &Data, const MCAsmLayout &Layout) { 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; diff --git a/test/MC/ELF/set.s b/test/MC/ELF/set.s index ddc7c5bb11..69d6c91063 100644 --- a/test/MC/ELF/set.s +++ b/test/MC/ELF/set.s @@ -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) |