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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2015-01-22 14:20:45 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2015-01-22 14:20:45 +0000 |
| commit | 5a67ed1038de11a26851c01e0ae22a67e8ac028c (patch) | |
| tree | f6a5304a61555ec532612fcd4a4bfeb0529f35b4 /llvm/test | |
| parent | 48846ba57023d66bc251b3e6ac03e01700aa382f (diff) | |
| download | bcm5719-llvm-5a67ed1038de11a26851c01e0ae22a67e8ac028c.tar.gz bcm5719-llvm-5a67ed1038de11a26851c01e0ae22a67e8ac028c.zip | |
[pr21886] Change MCJIT/ELF to support MSVC C++ mangled symbol.
The ELF format is used on Windows by the MCJIT engine. Thus, on Windows, the
ELFObjectWriter can encounter symbols mangled using the MS Visual Studio C++
name mangling. Symbols mangled using the MSVC C++ name mangling can legally
have "@@@" as a substring. The EFLObjectWriter should not interpret the "@@@"
substring as specifying GNU-style symbol versioning. The ELFObjectWriter
therefore check for the MSVC C++ name mangling prefix which is either "?", "@?",
"imp_?" or "imp_?@".
llvm-svn: 226830
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/MC/ELF/symver-msvc.s | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/llvm/test/MC/ELF/symver-msvc.s b/llvm/test/MC/ELF/symver-msvc.s new file mode 100644 index 00000000000..d6730ca6c6f --- /dev/null +++ b/llvm/test/MC/ELF/symver-msvc.s @@ -0,0 +1,59 @@ +// RUN: llvm-mc -filetype=obj -triple x86_64-pc-windows-elf %s -o - | llvm-readobj -r -t | FileCheck %s + +// Verify that MSVC C++ mangled symbols are not affected by the ELF +// GNU-style symbol versioning. The ELF format is used on Windows by +// the MCJIT execution engine. + + .long "??_R0?AVexception@std@@@8" + .long "@??_R0?AVinvalid_argument@std@@@8" + .long "__imp_??_R0?AVlogic_error@std@@@8" + .long "__imp_@??_R0PAVexception@std@@@8" + + +// CHECK: Relocations [ +// CHECK-NEXT: Section (2) .rela.text { +// CHECK-NEXT: 0x0 R_X86_64_32 ??_R0?AVexception@std@@@8 0x0 +// CHECK-NEXT: 0x4 R_X86_64_32 @??_R0?AVinvalid_argument@std@@@8 0x0 +// CHECK-NEXT: 0x8 R_X86_64_32 __imp_??_R0?AVlogic_error@std@@@8 0x0 +// CHECK-NEXT: 0xC R_X86_64_32 __imp_@??_R0PAVexception@std@@@8 0x0 +// CHECK-NEXT: } +// CHECK-NEXT: ] + +// CHECK: Symbols [ +// CHECK: Symbol { +// CHECK: Name: ??_R0?AVexception@std@@@8 (102) +// CHECK-NEXT: Value: 0x0 +// CHECK-NEXT: Size: 0 +// CHECK-NEXT: Binding: Global (0x1) +// CHECK-NEXT: Type: None (0x0) +// CHECK-NEXT: Other: 0 +// CHECK-NEXT: Section: Undefined (0x0) +// CHECK-NEXT: } +// CHECK-NEXT: Symbol { +// CHECK-NEXT: Name: @??_R0?AVinvalid_argument@std@@@8 (1) +// CHECK-NEXT: Value: 0x0 +// CHECK-NEXT: Size: 0 +// CHECK-NEXT: Binding: Global (0x1) +// CHECK-NEXT: Type: None (0x0) +// CHECK-NEXT: Other: 0 +// CHECK-NEXT: Section: Undefined (0x0) +// CHECK-NEXT: } +// CHECK-NEXT: Symbol { +// CHECK-NEXT: Name: __imp_??_R0?AVlogic_error@std@@@8 (35) +// CHECK-NEXT: Value: 0x0 +// CHECK-NEXT: Size: 0 +// CHECK-NEXT: Binding: Global (0x1) +// CHECK-NEXT: Type: None (0x0) +// CHECK-NEXT: Other: 0 +// CHECK-NEXT: Section: Undefined (0x0) +// CHECK-NEXT: } +// CHECK-NEXT: Symbol { +// CHECK-NEXT: Name: __imp_@??_R0PAVexception@std@@@8 (69) +// CHECK-NEXT: Value: 0x0 +// CHECK-NEXT: Size: 0 +// CHECK-NEXT: Binding: Global (0x1) +// CHECK-NEXT: Type: None (0x0) +// CHECK-NEXT: Other: 0 +// CHECK-NEXT: Section: Undefined (0x0) +// CHECK-NEXT: } +// CHECK-NEXT: ] |
