[lld] r315803 - Revert rL315721, "Handle shared and lazy symbol in the gnu hash construction."

NAKAMURA Takumi via llvm-commits llvm-commits at lists.llvm.org
Sat Oct 14 05:21:50 PDT 2017


Author: chapuni
Date: Sat Oct 14 05:21:49 2017
New Revision: 315803

URL: http://llvm.org/viewvc/llvm-project?rev=315803&view=rev
Log:
Revert rL315721, "Handle shared and lazy symbol in the gnu hash construction."

It broke check-libcxx with stage1-clang and stage1-lld.

Modified:
    lld/trunk/ELF/SyntheticSections.cpp
    lld/trunk/test/ELF/gc-sections-shared.s
    lld/trunk/test/ELF/gnu-hash-table.s

Modified: lld/trunk/ELF/SyntheticSections.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/SyntheticSections.cpp?rev=315803&r1=315802&r2=315803&view=diff
==============================================================================
--- lld/trunk/ELF/SyntheticSections.cpp (original)
+++ lld/trunk/ELF/SyntheticSections.cpp Sat Oct 14 05:21:49 2017
@@ -1608,7 +1608,7 @@ void GnuHashTableSection::addSymbols(std
   // its type correctly.
   std::vector<SymbolTableEntry>::iterator Mid =
       std::stable_partition(V.begin(), V.end(), [](const SymbolTableEntry &S) {
-        return !S.Symbol->isInCurrentDSO();
+        return S.Symbol->isUndefined();
       });
   if (Mid == V.end())
     return;

Modified: lld/trunk/test/ELF/gc-sections-shared.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/gc-sections-shared.s?rev=315803&r1=315802&r2=315803&view=diff
==============================================================================
--- lld/trunk/test/ELF/gc-sections-shared.s (original)
+++ lld/trunk/test/ELF/gc-sections-shared.s Sat Oct 14 05:21:49 2017
@@ -19,16 +19,16 @@
 # CHECK-NEXT:     Section: Undefined (0x0)
 # CHECK-NEXT:   }
 # CHECK-NEXT:   Symbol {
-# CHECK-NEXT:     Name: bar2
+# CHECK-NEXT:     Name: bar
 # CHECK-NEXT:     Value:
 # CHECK-NEXT:     Size:
 # CHECK-NEXT:     Binding: Global
 # CHECK-NEXT:     Type:
 # CHECK-NEXT:     Other:
-# CHECK-NEXT:     Section: Undefined
+# CHECK-NEXT:     Section: .text
 # CHECK-NEXT:   }
 # CHECK-NEXT:   Symbol {
-# CHECK-NEXT:     Name: bar
+# CHECK-NEXT:     Name: foo
 # CHECK-NEXT:     Value:
 # CHECK-NEXT:     Size:
 # CHECK-NEXT:     Binding: Global
@@ -37,13 +37,13 @@
 # CHECK-NEXT:     Section: .text
 # CHECK-NEXT:   }
 # CHECK-NEXT:   Symbol {
-# CHECK-NEXT:     Name: foo
+# CHECK-NEXT:     Name: bar2
 # CHECK-NEXT:     Value:
 # CHECK-NEXT:     Size:
 # CHECK-NEXT:     Binding: Global
 # CHECK-NEXT:     Type:
 # CHECK-NEXT:     Other:
-# CHECK-NEXT:     Section: .text
+# CHECK-NEXT:     Section: Undefined
 # CHECK-NEXT:   }
 # CHECK-NEXT: ]
 

Modified: lld/trunk/test/ELF/gnu-hash-table.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/gnu-hash-table.s?rev=315803&r1=315802&r2=315803&view=diff
==============================================================================
--- lld/trunk/test/ELF/gnu-hash-table.s (original)
+++ lld/trunk/test/ELF/gnu-hash-table.s Sat Oct 14 05:21:49 2017
@@ -6,29 +6,10 @@
 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux    %s    -o %t-x86_64.o
 # RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %s    -o %t-ppc64.o
 
-# RUN: echo ".global zed; zed:" > %t2.s
-# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux      %t2.s -o %t2-i386.o
-# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux    %t2.s -o %t2-x86_64.o
-# RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %t2.s -o %t2-ppc64.o
-
-# RUN: rm -f %t2-i386.a %t2-x86_64.a %t2-ppc64.a
-# RUN: llvm-ar rc %t2-i386.a %t2-i386.o
-# RUN: llvm-ar rc %t2-x86_64.a %t2-x86_64.o
-# RUN: llvm-ar rc %t2-ppc64.a %t2-ppc64.o
-
-# RUN: echo ".global xyz; xyz:" > %t3.s
-# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux      %t3.s -o %t3-i386.o
-# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux    %t3.s -o %t3-x86_64.o
-# RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %t3.s -o %t3-ppc64.o
-
-# RUN: ld.lld -shared %t3-i386.o   -o %t3-i386.so
-# RUN: ld.lld -shared %t3-x86_64.o -o %t3-x86_64.so
-# RUN: ld.lld -shared %t3-ppc64.o  -o %t3-ppc64.so
-
 # RUN: ld.lld -shared --hash-style=gnu  -o %te-i386.so  %te-i386.o
-# RUN: ld.lld -shared  -hash-style=gnu  -o %t-i386.so   %t-i386.o   %t2-i386.a   %t3-i386.so
-# RUN: ld.lld -shared  -hash-style=gnu  -o %t-x86_64.so %t-x86_64.o %t2-x86_64.a %t3-x86_64.so
-# RUN: ld.lld -shared --hash-style both -o %t-ppc64.so  %t-ppc64.o  %t2-ppc64.a  %t3-ppc64.so
+# RUN: ld.lld -shared  -hash-style=gnu  -o %t-i386.so   %t-i386.o
+# RUN: ld.lld -shared  -hash-style=gnu  -o %t-x86_64.so %t-x86_64.o
+# RUN: ld.lld -shared --hash-style both -o %t-ppc64.so  %t-ppc64.o
 
 # RUN: llvm-readobj -dyn-symbols -gnu-hash-table %te-i386.so \
 # RUN:   | FileCheck %s -check-prefix=EMPTY
@@ -89,16 +70,6 @@
 # I386:          Section: Undefined
 # I386:        }
 # I386:        Symbol {
-# I386:          Name: xyz@
-# I386:          Binding: Global
-# I386:          Section: Undefined
-# I386:        }
-# I386:        Symbol {
-# I386:          Name: zed@
-# I386:          Binding: Weak
-# I386:          Section: Undefined
-# I386:        }
-# I386:        Symbol {
 # I386:          Name: bar@
 # I386:          Binding: Global
 # I386:          Section: .text
@@ -111,11 +82,11 @@
 # I386:      ]
 # I386:      GnuHashTable {
 # I386-NEXT:   Num Buckets: 1
-# I386-NEXT:   First Hashed Symbol Index: 4
+# I386-NEXT:   First Hashed Symbol Index: 2
 # I386-NEXT:   Num Mask Words: 1
 # I386-NEXT:   Shift Count: 5
 # I386-NEXT:   Bloom Filter: [0x14000220]
-# I386-NEXT:   Buckets: [4]
+# I386-NEXT:   Buckets: [2]
 # I386-NEXT:   Values: [0xB8860BA, 0xB887389]
 # I386-NEXT: }
 
@@ -149,16 +120,6 @@
 # X86_64:          Section: Undefined
 # X86_64:        }
 # X86_64:        Symbol {
-# X86_64:          Name: xyz@
-# X86_64:          Binding: Global
-# X86_64:          Section: Undefined
-# X86_64:        }
-# X86_64:        Symbol {
-# X86_64:          Name: zed@
-# X86_64:          Binding: Weak
-# X86_64:          Section: Undefined
-# X86_64:        }
-# X86_64:        Symbol {
 # X86_64:          Name: bar@
 # X86_64:          Binding: Global
 # X86_64:          Section: .text
@@ -171,11 +132,11 @@
 # X86_64:      ]
 # X86_64:      GnuHashTable {
 # X86_64-NEXT:   Num Buckets: 1
-# X86_64-NEXT:   First Hashed Symbol Index: 4
+# X86_64-NEXT:   First Hashed Symbol Index: 2
 # X86_64-NEXT:   Num Mask Words: 1
 # X86_64-NEXT:   Shift Count: 6
 # X86_64-NEXT:   Bloom Filter: [0x400000000004204]
-# X86_64-NEXT:   Buckets: [4]
+# X86_64-NEXT:   Buckets: [2]
 # X86_64-NEXT:   Values: [0xB8860BA, 0xB887389]
 # X86_64-NEXT: }
 
@@ -209,16 +170,6 @@
 # PPC64:          Section: Undefined
 # PPC64:        }
 # PPC64:        Symbol {
-# PPC64:          Name: xyz@
-# PPC64:          Binding: Global
-# PPC64:          Section: Undefined
-# PPC64:        }
-# PPC64:        Symbol {
-# PPC64:          Name: zed@
-# PPC64:          Binding: Weak
-# PPC64:          Section: Undefined
-# PPC64:        }
-# PPC64:        Symbol {
 # PPC64:          Name: bar@
 # PPC64:          Binding: Global
 # PPC64:          Section: .text
@@ -231,16 +182,14 @@
 # PPC64:      ]
 # PPC64:      GnuHashTable {
 # PPC64-NEXT:   Num Buckets: 1
-# PPC64-NEXT:   First Hashed Symbol Index: 4
+# PPC64-NEXT:   First Hashed Symbol Index: 2
 # PPC64-NEXT:   Num Mask Words: 1
 # PPC64-NEXT:   Shift Count: 6
 # PPC64-NEXT:   Bloom Filter: [0x400000000004204]
-# PPC64-NEXT:   Buckets: [4]
+# PPC64-NEXT:   Buckets: [2]
 # PPC64-NEXT:   Values: [0xB8860BA, 0xB887389]
 # PPC64-NEXT: }
 
 .globl foo,bar,baz
 foo:
 bar:
-.weak zed
-.global xyz




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