[llvm] r350615 - [llvm-readobj] Don't print '@' at end of unversioned dynsym names

James Henderson via llvm-commits llvm-commits at lists.llvm.org
Tue Jan 8 02:58:06 PST 2019


Author: jhenderson
Date: Tue Jan  8 02:58:05 2019
New Revision: 350615

URL: http://llvm.org/viewvc/llvm-project?rev=350615&view=rev
Log:
[llvm-readobj] Don't print '@' at end of unversioned dynsym names

This fixes https://bugs.llvm.org/show_bug.cgi?id=40097. The problem was
caused by a regression in r188022.

See also r350614.

Reviewed by: rupprecht, mstorsjo, Higuoxing, jakehehrlich

Differential Revision: https://reviews.llvm.org/D56319

Modified:
    llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym.test
    llvm/trunk/test/tools/llvm-readobj/elf-versioninfo.test
    llvm/trunk/test/tools/llvm-readobj/gnu-symbols.test
    llvm/trunk/test/tools/llvm-readobj/mips-got.test
    llvm/trunk/tools/llvm-readobj/ELFDumper.cpp

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym.test?rev=350615&r1=350614&r2=350615&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym.test Tue Jan  8 02:58:05 2019
@@ -17,7 +17,7 @@
 
 #CHECK: DynamicSymbols [
 #CHECK-NEXT:  Symbol {
-#CHECK-NEXT:    Name: @ (0)
+#CHECK-NEXT:    Name: (0)
 #CHECK-NEXT:    Value: 0x0
 #CHECK-NEXT:    Size: 0
 #CHECK-NEXT:    Binding: Local
@@ -26,7 +26,7 @@
 #CHECK-NEXT:    Section: Undefined (0x0)
 #CHECK-NEXT:  }
 #CHECK-NEXT:  Symbol {
-#CHECK-NEXT:    Name: bang@ (1)
+#CHECK-NEXT:    Name: bang (1)
 #CHECK-NEXT:    Value: 0x4000
 #CHECK-NEXT:    Size: 8
 #CHECK-NEXT:    Binding: Global (0x1)
@@ -35,7 +35,7 @@
 #CHECK-NEXT:    Section: .bss (0x7)
 #CHECK-NEXT:  }
 #CHECK-NEXT:  Symbol {
-#CHECK-NEXT:    Name: bar@ (6)
+#CHECK-NEXT:    Name: bar (6)
 #CHECK-NEXT:    Value: 0x1001
 #CHECK-NEXT:    Size: 0
 #CHECK-NEXT:    Binding: Global (0x1)
@@ -44,7 +44,7 @@
 #CHECK-NEXT:    Section: .text (0x4)
 #CHECK-NEXT:  }
 #CHECK-NEXT:  Symbol {
-#CHECK-NEXT:    Name: baz@ (10)
+#CHECK-NEXT:    Name: baz (10)
 #CHECK-NEXT:    Value: 0x2000
 #CHECK-NEXT:    Size: 0
 #CHECK-NEXT:    Binding: Global (0x1)
@@ -53,7 +53,7 @@
 #CHECK-NEXT:    Section: .data (0x5)
 #CHECK-NEXT:  }
 #CHECK-NEXT:  Symbol {
-#CHECK-NEXT:    Name: foo@ (14)
+#CHECK-NEXT:    Name: foo (14)
 #CHECK-NEXT:    Value: 0x1000
 #CHECK-NEXT:    Size: 0
 #CHECK-NEXT:    Binding: Global (0x1)

Modified: llvm/trunk/test/tools/llvm-readobj/elf-versioninfo.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-readobj/elf-versioninfo.test?rev=350615&r1=350614&r2=350615&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-readobj/elf-versioninfo.test (original)
+++ llvm/trunk/test/tools/llvm-readobj/elf-versioninfo.test Tue Jan  8 02:58:05 2019
@@ -14,15 +14,15 @@ CHECK-NEXT:   Link: 1
 CHECK-NEXT:   Symbols [
 CHECK-NEXT:     Symbol {
 CHECK-NEXT:       Version: 0
-CHECK-NEXT:       Name: @
+CHECK-NEXT:       Name: {{$}}
 CHECK-NEXT:     }
 CHECK-NEXT:     Symbol {
 CHECK-NEXT:       Version: 1
-CHECK-NEXT:       Name: _end@
+CHECK-NEXT:       Name: _end{{$}}
 CHECK-NEXT:     }
 CHECK-NEXT:     Symbol {
 CHECK-NEXT:       Version: 1
-CHECK-NEXT:       Name: _edata@
+CHECK-NEXT:       Name: _edata{{$}}
 CHECK-NEXT:     }
 CHECK-NEXT:     Symbol {
 CHECK-NEXT:       Version: 3
@@ -30,7 +30,7 @@ CHECK-NEXT:       Name: goo@@VERSION2
 CHECK-NEXT:     }
 CHECK-NEXT:     Symbol {
 CHECK-NEXT:       Version: 1
-CHECK-NEXT:       Name: __bss_start@
+CHECK-NEXT:       Name: __bss_start{{$}}
 CHECK-NEXT:     }
 CHECK-NEXT:     Symbol {
 CHECK-NEXT:       Version: 2

Modified: llvm/trunk/test/tools/llvm-readobj/gnu-symbols.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-readobj/gnu-symbols.test?rev=350615&r1=350614&r2=350615&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-readobj/gnu-symbols.test (original)
+++ llvm/trunk/test/tools/llvm-readobj/gnu-symbols.test Tue Jan  8 02:58:05 2019
@@ -50,25 +50,25 @@ DYN-NEXT:    11: 0000000000200268     0
 HASH:     Symbol table of .hash for image:
 HASH-NEXT:   Num Buc:    Value  Size   Type   Bind Vis      Ndx Name
 HASH-NEXT:     9   0: 00000000     0 FUNC    GLOBAL DEFAULT UND __gxx_personality_v0 at CXXABI_1.3
-HASH-NEXT:    13   0: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS _edata@
+HASH-NEXT:    13   0: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS _edata{{$}}
 HASH-NEXT:     7   0: 00000000     0 FUNC    GLOBAL DEFAULT UND _ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode at GLIBCXX_3.4
-HASH-NEXT:     2   0: 00000000     0 NOTYPE  WEAK   DEFAULT UND _Jv_RegisterClasses@
-HASH-NEXT:     1   0: 00000000     0 NOTYPE  WEAK   DEFAULT UND __gmon_start__@
-HASH-NEXT:    16   1: 00000850    81 FUNC    GLOBAL DEFAULT  14 main@
+HASH-NEXT:     2   0: 00000000     0 NOTYPE  WEAK   DEFAULT UND _Jv_RegisterClasses{{$}}
+HASH-NEXT:     1   0: 00000000     0 NOTYPE  WEAK   DEFAULT UND __gmon_start__{{$}}
+HASH-NEXT:    16   1: 00000850    81 FUNC    GLOBAL DEFAULT  14 main{{$}}
 HASH-NEXT:    10   1: 00000000     0 FUNC    GLOBAL DEFAULT UND _Unwind_Resume at GCC_3.0
 HASH-NEXT:     8   1: 00000000     0 FUNC    GLOBAL DEFAULT UND puts at GLIBC_2.0
-HASH-NEXT:    12   1: 00001b68     0 NOTYPE  GLOBAL DEFAULT ABS _end@
+HASH-NEXT:    12   1: 00001b68     0 NOTYPE  GLOBAL DEFAULT ABS _end{{$}}
 HASH-NEXT:     6   1: 00000000     0 FUNC    GLOBAL DEFAULT UND _ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev at GLIBCXX_3.4
-HASH-NEXT:     5   1: 00000000     0 NOTYPE  WEAK   DEFAULT UND _ITM_registerTMCloneTable@
-HASH-NEXT:     4   1: 00000000     0 NOTYPE  WEAK   DEFAULT UND _ITM_deregisterTMCloneTable@
+HASH-NEXT:     5   1: 00000000     0 NOTYPE  WEAK   DEFAULT UND _ITM_registerTMCloneTable{{$}}
+HASH-NEXT:     4   1: 00000000     0 NOTYPE  WEAK   DEFAULT UND _ITM_deregisterTMCloneTable{{$}}
 HASH-NEXT:     3   1: 00000000     0 FUNC    GLOBAL DEFAULT UND __libc_start_main at GLIBC_2.0
 HASH-NEXT:    11   2: 00000000     0 FUNC    WEAK   DEFAULT UND __cxa_finalize at GLIBC_2.1.3
-HASH-NEXT:    15   2: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS __bss_start@
-HASH-NEXT:    14   2: 0000093c     4 OBJECT  GLOBAL DEFAULT  16 _IO_stdin_used@
+HASH-NEXT:    15   2: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS __bss_start{{$}}
+HASH-NEXT:    14   2: 0000093c     4 OBJECT  GLOBAL DEFAULT  16 _IO_stdin_used{{$}}
 HASH:     Symbol table of .gnu.hash for image:
 HASH-NEXT:   Num Buc:    Value  Size   Type   Bind Vis      Ndx Name
-HASH-NEXT:    12   0: 00001b68     0 NOTYPE  GLOBAL DEFAULT ABS _end@
-HASH-NEXT:    13   0: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS _edata@
-HASH-NEXT:    14   1: 0000093c     4 OBJECT  GLOBAL DEFAULT  16 _IO_stdin_used@
-HASH-NEXT:    15   1: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS __bss_start@
-HASH-NEXT:    16   1: 00000850    81 FUNC    GLOBAL DEFAULT  14 main@
+HASH-NEXT:    12   0: 00001b68     0 NOTYPE  GLOBAL DEFAULT ABS _end{{$}}
+HASH-NEXT:    13   0: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS _edata{{$}}
+HASH-NEXT:    14   1: 0000093c     4 OBJECT  GLOBAL DEFAULT  16 _IO_stdin_used{{$}}
+HASH-NEXT:    15   1: 00001b64     0 NOTYPE  GLOBAL DEFAULT ABS __bss_start{{$}}
+HASH-NEXT:    16   1: 00000850    81 FUNC    GLOBAL DEFAULT  14 main{{$}}

Modified: llvm/trunk/test/tools/llvm-readobj/mips-got.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-readobj/mips-got.test?rev=350615&r1=350614&r2=350615&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-readobj/mips-got.test (original)
+++ llvm/trunk/test/tools/llvm-readobj/mips-got.test Tue Jan  8 02:58:05 2019
@@ -73,7 +73,7 @@ GOT-EXE-NEXT:       Initial: 0x0
 GOT-EXE-NEXT:       Value: 0x0
 GOT-EXE-NEXT:       Type: Function (0x2)
 GOT-EXE-NEXT:       Section: Undefined (0x0)
-GOT-EXE-NEXT:       Name: __gmon_start__@ (1)
+GOT-EXE-NEXT:       Name: __gmon_start__ (1)
 GOT-EXE-NEXT:     }
 GOT-EXE-NEXT:   ]
 GOT-EXE-NEXT:   Number of TLS and multi-GOT entries: 0
@@ -145,7 +145,7 @@ GOT-SO-NEXT:       Initial: 0x0
 GOT-SO-NEXT:       Value: 0x0
 GOT-SO-NEXT:       Type: None (0x0)
 GOT-SO-NEXT:       Section: Undefined (0x0)
-GOT-SO-NEXT:       Name: _ITM_registerTMCloneTable@ (87)
+GOT-SO-NEXT:       Name: _ITM_registerTMCloneTable (87)
 GOT-SO-NEXT:     }
 GOT-SO-NEXT:     Entry {
 GOT-SO-NEXT:       Address: 0x1090C
@@ -154,7 +154,7 @@ GOT-SO-NEXT:       Initial: 0x0
 GOT-SO-NEXT:       Value: 0x0
 GOT-SO-NEXT:       Type: None (0x0)
 GOT-SO-NEXT:       Section: Undefined (0x0)
-GOT-SO-NEXT:       Name: _Jv_RegisterClasses@ (128)
+GOT-SO-NEXT:       Name: _Jv_RegisterClasses (128)
 GOT-SO-NEXT:     }
 GOT-SO-NEXT:     Entry {
 GOT-SO-NEXT:       Address: 0x10910
@@ -163,7 +163,7 @@ GOT-SO-NEXT:       Initial: 0x0
 GOT-SO-NEXT:       Value: 0x0
 GOT-SO-NEXT:       Type: Function (0x2)
 GOT-SO-NEXT:       Section: Undefined (0x0)
-GOT-SO-NEXT:       Name: __gmon_start__@ (23)
+GOT-SO-NEXT:       Name: __gmon_start__ (23)
 GOT-SO-NEXT:     }
 GOT-SO-NEXT:     Entry {
 GOT-SO-NEXT:       Address: 0x10914
@@ -181,7 +181,7 @@ GOT-SO-NEXT:       Initial: 0x0
 GOT-SO-NEXT:       Value: 0x0
 GOT-SO-NEXT:       Type: None (0x0)
 GOT-SO-NEXT:       Section: Undefined (0x0)
-GOT-SO-NEXT:       Name: _ITM_deregisterTMCloneTable@ (59)
+GOT-SO-NEXT:       Name: _ITM_deregisterTMCloneTable (59)
 GOT-SO-NEXT:     }
 GOT-SO-NEXT:     Entry {
 GOT-SO-NEXT:       Address: 0x1091C
@@ -277,7 +277,7 @@ GOT-TLS-NEXT:       Initial: 0x0
 GOT-TLS-NEXT:       Value: 0x0
 GOT-TLS-NEXT:       Type: None (0x0)
 GOT-TLS-NEXT:       Section: Undefined (0x0)
-GOT-TLS-NEXT:       Name: _ITM_registerTMCloneTable@ (78)
+GOT-TLS-NEXT:       Name: _ITM_registerTMCloneTable (78)
 GOT-TLS-NEXT:     }
 GOT-TLS-NEXT:     Entry {
 GOT-TLS-NEXT:       Address: 0x10C70
@@ -286,7 +286,7 @@ GOT-TLS-NEXT:       Initial: 0x0
 GOT-TLS-NEXT:       Value: 0x0
 GOT-TLS-NEXT:       Type: None (0x0)
 GOT-TLS-NEXT:       Section: Undefined (0x0)
-GOT-TLS-NEXT:       Name: _Jv_RegisterClasses@ (119)
+GOT-TLS-NEXT:       Name: _Jv_RegisterClasses (119)
 GOT-TLS-NEXT:     }
 GOT-TLS-NEXT:     Entry {
 GOT-TLS-NEXT:       Address: 0x10C78
@@ -295,7 +295,7 @@ GOT-TLS-NEXT:       Initial: 0x0
 GOT-TLS-NEXT:       Value: 0x0
 GOT-TLS-NEXT:       Type: Function (0x2)
 GOT-TLS-NEXT:       Section: Undefined (0x0)
-GOT-TLS-NEXT:       Name: __gmon_start__@ (23)
+GOT-TLS-NEXT:       Name: __gmon_start__ (23)
 GOT-TLS-NEXT:     }
 GOT-TLS-NEXT:     Entry {
 GOT-TLS-NEXT:       Address: 0x10C80
@@ -313,7 +313,7 @@ GOT-TLS-NEXT:       Initial: 0x0
 GOT-TLS-NEXT:       Value: 0x0
 GOT-TLS-NEXT:       Type: None (0x0)
 GOT-TLS-NEXT:       Section: Undefined (0x0)
-GOT-TLS-NEXT:       Name: _ITM_deregisterTMCloneTable@ (50)
+GOT-TLS-NEXT:       Name: _ITM_deregisterTMCloneTable (50)
 GOT-TLS-NEXT:     }
 GOT-TLS-NEXT:     Entry {
 GOT-TLS-NEXT:       Address: 0x10C90

Modified: llvm/trunk/tools/llvm-readobj/ELFDumper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-readobj/ELFDumper.cpp?rev=350615&r1=350614&r2=350615&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-readobj/ELFDumper.cpp (original)
+++ llvm/trunk/tools/llvm-readobj/ELFDumper.cpp Tue Jan  8 02:58:05 2019
@@ -818,8 +818,10 @@ std::string ELFDumper<ELFT>::getFullSymb
 
   bool IsDefault;
   StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
-  FullSymbolName += (IsDefault ? "@@" : "@");
-  FullSymbolName += Version;
+  if (!Version.empty()) {
+    FullSymbolName += (IsDefault ? "@@" : "@");
+    FullSymbolName += Version;
+  }
   return FullSymbolName;
 }
 




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