[llvm] r220249 - [MCJIT] Temporarily revert r220245 - it broke several bots.

Lang Hames lhames at gmail.com
Mon Oct 20 17:24:03 PDT 2014


Author: lhames
Date: Mon Oct 20 19:24:02 2014
New Revision: 220249

URL: http://llvm.org/viewvc/llvm-project?rev=220249&view=rev
Log:
[MCJIT] Temporarily revert r220245 - it broke several bots.

(See e.g. http://bb.pgr.jp/builders/cmake-llvm-x86_64-linux/builds/17653)


Modified:
    llvm/trunk/include/llvm/Object/ELFObjectFile.h
    llvm/trunk/include/llvm/Object/ELFTypes.h
    llvm/trunk/include/llvm/Object/SymbolicFile.h
    llvm/trunk/include/llvm/Support/ELF.h
    llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
    llvm/trunk/lib/Object/MachOObjectFile.cpp
    llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s
    llvm/trunk/test/ExecutionEngine/RuntimeDyld/ARM/MachO_ARM_PIC_relocations.s
    llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_i386_DynNoPIC_relocations.s
    llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_x86-64_PIC_relocations.s

Modified: llvm/trunk/include/llvm/Object/ELFObjectFile.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ELFObjectFile.h?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/ELFObjectFile.h (original)
+++ llvm/trunk/include/llvm/Object/ELFObjectFile.h Mon Oct 20 19:24:02 2014
@@ -177,19 +177,6 @@ protected:
     return DRI;
   }
 
-  bool isExportedToOtherDSO(const Elf_Sym *ESym) const {
-    unsigned char Binding = ESym->getBinding();
-    unsigned char Visibility = ESym->getVisibility();
-
-    if (Binding != ELF::STB_GLOBAL && Binding != ELF::STB_WEAK)
-      return false;
-
-    if (Visibility != ELF::STV_DEFAULT && Visibility != ELF::STV_PROTECTED)
-      return false;
-
-    return true;
-  }
-
   // This flag is used for classof, to distinguish ELFObjectFile from
   // its subclass. If more subclasses will be created, this flag will
   // have to become an enum.
@@ -386,9 +373,6 @@ uint32_t ELFObjectFile<ELFT>::getSymbolF
       EF.getSymbolTableIndex(ESym) == ELF::SHN_COMMON)
     Result |= SymbolRef::SF_Common;
 
-  if (isExportedToOtherDSO(ESym))
-    Result |= SymbolRef::SF_Exported;
-
   return Result;
 }
 

Modified: llvm/trunk/include/llvm/Object/ELFTypes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ELFTypes.h?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/ELFTypes.h (original)
+++ llvm/trunk/include/llvm/Object/ELFTypes.h Mon Oct 20 19:24:02 2014
@@ -158,7 +158,7 @@ struct Elf_Sym_Base<ELFType<TargetEndian
   Elf_Addr st_value;      // Value or address associated with the symbol
   Elf_Word st_size;       // Size of the symbol
   unsigned char st_info;  // Symbol's type and binding attributes
-  unsigned char st_other; // Visibility in the lower 2 bits, the rest is zero
+  unsigned char st_other; // Must be zero; reserved
   Elf_Half st_shndx;      // Which section (header table index) it's defined in
 };
 
@@ -167,7 +167,7 @@ struct Elf_Sym_Base<ELFType<TargetEndian
   LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
   Elf_Word st_name;       // Symbol name (index into string table)
   unsigned char st_info;  // Symbol's type and binding attributes
-  unsigned char st_other; // Visibility in the lower 2 bits, the rest is zero
+  unsigned char st_other; // Must be zero; reserved
   Elf_Half st_shndx;      // Which section (header table index) it's defined in
   Elf_Addr st_value;      // Value or address associated with the symbol
   Elf_Xword st_size;      // Size of the symbol
@@ -176,21 +176,16 @@ struct Elf_Sym_Base<ELFType<TargetEndian
 template <class ELFT>
 struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
   using Elf_Sym_Base<ELFT>::st_info;
-  using Elf_Sym_Base<ELFT>::st_other;
 
   // These accessors and mutators correspond to the ELF32_ST_BIND,
   // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
   unsigned char getBinding() const { return st_info >> 4; }
   unsigned char getType() const { return st_info & 0x0f; }
-  unsigned char getVisibility() const { return st_other & 0x3; }
   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
   void setBindingAndType(unsigned char b, unsigned char t) {
     st_info = (b << 4) + (t & 0x0f);
   }
-  void setVisibility(unsigned char v) {
-    st_other = (st_other & ~0x3) | (v & 0x3);
-  }
 };
 
 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section

Modified: llvm/trunk/include/llvm/Object/SymbolicFile.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/SymbolicFile.h?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/SymbolicFile.h (original)
+++ llvm/trunk/include/llvm/Object/SymbolicFile.h Mon Oct 20 19:24:02 2014
@@ -87,10 +87,9 @@ public:
     SF_Absolute = 1U << 3,       // Absolute symbol
     SF_Common = 1U << 4,         // Symbol has common linkage
     SF_Indirect = 1U << 5,       // Symbol is an alias to another symbol
-    SF_Exported = 1U << 6,       // Symbol is visible to other DSOs
-    SF_FormatSpecific = 1U << 7, // Specific to the object file format
+    SF_FormatSpecific = 1U << 6, // Specific to the object file format
                                  // (e.g. section symbols)
-    SF_Thumb = 1U << 8,          // Thumb symbol in a 32-bit ARM binary
+    SF_Thumb = 1U << 7           // Thumb symbol in a 32-bit ARM binary
   };
 
   BasicSymbolRef() : OwningObject(nullptr) { }

Modified: llvm/trunk/include/llvm/Support/ELF.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/ELF.h?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/ELF.h (original)
+++ llvm/trunk/include/llvm/Support/ELF.h Mon Oct 20 19:24:02 2014
@@ -1458,29 +1458,25 @@ struct Elf32_Sym {
   Elf32_Addr    st_value; // Value or address associated with the symbol
   Elf32_Word    st_size;  // Size of the symbol
   unsigned char st_info;  // Symbol's type and binding attributes
-  unsigned char st_other; // Visibility in the lower 2 bits, the rest is zero
+  unsigned char st_other; // Must be zero; reserved
   Elf32_Half    st_shndx; // Which section (header table index) it's defined in
 
   // These accessors and mutators correspond to the ELF32_ST_BIND,
   // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
   unsigned char getBinding() const { return st_info >> 4; }
   unsigned char getType() const { return st_info & 0x0f; }
-  unsigned char getVisibility() const { return st_other & 0x3; }
   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
   void setBindingAndType(unsigned char b, unsigned char t) {
     st_info = (b << 4) + (t & 0x0f);
   }
-  void setVisibility(unsigned char v) {
-    st_other = (st_other & ~0x3) | (v & 0x3);
-  }
 };
 
 // Symbol table entries for ELF64.
 struct Elf64_Sym {
   Elf64_Word      st_name;  // Symbol name (index into string table)
   unsigned char   st_info;  // Symbol's type and binding attributes
-  unsigned char   st_other; // Visibility in the lower 2 bits, the rest is zero
+  unsigned char   st_other; // Must be zero; reserved
   Elf64_Half      st_shndx; // Which section (header tbl index) it's defined in
   Elf64_Addr      st_value; // Value or address associated with the symbol
   Elf64_Xword     st_size;  // Size of the symbol
@@ -1489,15 +1485,11 @@ struct Elf64_Sym {
   // symbol table entries.
   unsigned char getBinding() const { return st_info >> 4; }
   unsigned char getType() const { return st_info & 0x0f; }
-  unsigned char getVisibility() const { return st_other & 0x3; }
   void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
   void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
   void setBindingAndType(unsigned char b, unsigned char t) {
     st_info = (b << 4) + (t & 0x0f);
   }
-  void setVisibility(unsigned char v) {
-    st_other = (st_other & ~0x3) | (v & 0x3);
-  }
 };
 
 // The size (in bytes) of symbol table entries.

Modified: llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp Mon Oct 20 19:24:02 2014
@@ -205,14 +205,10 @@ RuntimeDyldImpl::loadObject(std::unique_
         bool IsCode = SI->isText();
         unsigned SectionID =
             findOrEmitSection(*Obj, *SI, IsCode, LocalSections);
-        // Add the symbol to the local symbol table for this module.
         LocalSymbols[Name.data()] = SymbolLoc(SectionID, SectOffset);
         DEBUG(dbgs() << "\tOffset: " << format("%p", (uintptr_t)SectOffset)
                      << " flags: " << Flags << " SID: " << SectionID);
-        // If exported, add to the global symbol table for other modules to also link in.
-        if (Flags & SymbolRef::SF_Exported) {
-          GlobalSymbolTable[Name] = SymbolLoc(SectionID, SectOffset);
-        }
+        GlobalSymbolTable[Name] = SymbolLoc(SectionID, SectOffset);
       }
     }
     DEBUG(dbgs() << "\tType: " << SymType << " Name: " << Name << "\n");

Modified: llvm/trunk/lib/Object/MachOObjectFile.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/MachOObjectFile.cpp?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/lib/Object/MachOObjectFile.cpp (original)
+++ llvm/trunk/lib/Object/MachOObjectFile.cpp Mon Oct 20 19:24:02 2014
@@ -454,9 +454,6 @@ uint32_t MachOObjectFile::getSymbolFlags
       if (Value && Value != UnknownAddressOrSize)
         Result |= SymbolRef::SF_Common;
     }
-
-    if (!(MachOType & MachO::N_PEXT))
-      Result |= SymbolRef::SF_Exported;
   }
 
   if (MachOFlags & (MachO::N_WEAK_REF | MachO::N_WEAK_DEF))

Modified: llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s (original)
+++ llvm/trunk/test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s Mon Oct 20 19:24:02 2014
@@ -18,7 +18,6 @@ _foo:
 # and therefore ignored.
 # rtdyld-check:  decode_operand(br1, 0)[25:0] = (_foo - br1)[27:2]
 _test_branch_reloc:
-    .globl  br1
 br1:
     b _foo
     ret
@@ -33,10 +32,8 @@ br1:
     .globl  _test_adrp_ldr
     .align  2
 _test_adrp_ldr:
-    .globl  adrp1
 adrp1:
     adrp x0, _ptr at PAGE
-    .globl  ldr1
 ldr1:
     ldr  x0, [x0, _ptr at PAGEOFF]
     ret
@@ -52,10 +49,8 @@ ldr1:
     .globl  _test_adrp_ldr
     .align  2
 _test_got_adrp_ldr:
-    .globl  adrp2
 adrp2:
     adrp x0, _ptr at GOTPAGE
-    .globl  ldr2
 ldr2:
     ldr  x0, [x0, _ptr at GOTPAGEOFF]
     ret

Modified: llvm/trunk/test/ExecutionEngine/RuntimeDyld/ARM/MachO_ARM_PIC_relocations.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/RuntimeDyld/ARM/MachO_ARM_PIC_relocations.s?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/test/ExecutionEngine/RuntimeDyld/ARM/MachO_ARM_PIC_relocations.s (original)
+++ llvm/trunk/test/ExecutionEngine/RuntimeDyld/ARM/MachO_ARM_PIC_relocations.s Mon Oct 20 19:24:02 2014
@@ -8,15 +8,12 @@
 bar:
 # Check lower 16-bits of section difference relocation
 # rtdyld-check: decode_operand(insn1, 1) = (foo$non_lazy_ptr-(nextPC+8))[15:0]
-        .globl  insn1
 insn1:
         movw    r0, :lower16:(foo$non_lazy_ptr-(nextPC+8))
 # Check upper 16-bits of section difference relocation
 # rtdyld-check: decode_operand(insn2, 2) = (foo$non_lazy_ptr-(nextPC+8))[31:16]
-        .globl  insn2
 insn2:
         movt    r0, :upper16:(foo$non_lazy_ptr-(nextPC+8))
-        .globl  nextPC
 nextPC:
         add     r1, r0, r0
 
@@ -28,7 +25,6 @@ nextPC:
 # rtdyld-check: *{4}(stub_addr(foo.o, __text, baz) + 4) = baz
 #
 # rtdyld-check: decode_operand(insn3, 0) = stub_addr(foo.o, __text, baz) - (insn3 + 8)
-        .globl  insn3
 insn3:
         bl      baz
 
@@ -48,7 +44,6 @@ insn4:
 # rtdyld-check: *{4}foo$non_lazy_ptr = foo
         .section	__DATA,__nl_symbol_ptr,non_lazy_symbol_pointers
   	.align	2
-        .globl  foo$non_lazy_ptr
 foo$non_lazy_ptr:
 	.indirect_symbol	foo
 	.long	0

Modified: llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_i386_DynNoPIC_relocations.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_i386_DynNoPIC_relocations.s?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_i386_DynNoPIC_relocations.s (original)
+++ llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_i386_DynNoPIC_relocations.s Mon Oct 20 19:24:02 2014
@@ -6,19 +6,16 @@
 	.align	4, 0x90
 bar:
 	calll	tmp0$pb
-	.globl  tmp0$pb
 tmp0$pb:
 	popl	%eax
 # Test section difference relocation to non-lazy ptr section.
 # rtdyld-check: decode_operand(inst1, 4) = x$non_lazy_ptr - tmp0$pb
-	.globl  inst1
 inst1:
 	movl	x$non_lazy_ptr-tmp0$pb(%eax), %eax
         movl    (%eax), %ebx
 
 # Test VANILLA relocation to jump table.
 # rtdyld-check: decode_operand(inst2, 0) = bling$stub - next_pc(inst2)
-	.globl  inst2
 inst2:
         calll	bling$stub
         addl    %ebx, %eax
@@ -30,13 +27,11 @@ inst3:
 	retl
 
 	.section	__IMPORT,__jump_table,symbol_stubs,pure_instructions+self_modifying_code,5
-	.globl  bling$stub
 bling$stub:
 	.indirect_symbol	bling
 	.ascii	"\364\364\364\364\364"
 
 	.section	__IMPORT,__pointers,non_lazy_symbol_pointers
-	.globl  x$non_lazy_ptr
 x$non_lazy_ptr:
 	.indirect_symbol	x
 	.long	0

Modified: llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_x86-64_PIC_relocations.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_x86-64_PIC_relocations.s?rev=220249&r1=220248&r2=220249&view=diff
==============================================================================
--- llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_x86-64_PIC_relocations.s (original)
+++ llvm/trunk/test/ExecutionEngine/RuntimeDyld/X86/MachO_x86-64_PIC_relocations.s Mon Oct 20 19:24:02 2014
@@ -12,13 +12,11 @@ foo:
 main:
 # Test PC-rel branch.
 # rtdyld-check: decode_operand(insn1, 0) = foo - next_pc(insn1)
-	.globl  insn1
 insn1:
         callq	foo
 
 # Test PC-rel signed.
 # rtdyld-check: decode_operand(insn2, 4) = x - next_pc(insn2)
-	.globl  insn2
 insn2:
 	movl	x(%rip), %eax
 
@@ -27,7 +25,6 @@ insn2:
 # references the correct GOT entry address:
 # rtdyld-check: *{8}(stub_addr(test_x86-64.o, __text, y)) = y
 # rtdyld-check: decode_operand(insn3, 4) = stub_addr(test_x86-64.o, __text, y) - next_pc(insn3)
-	.globl  insn3
 insn3:
         movq	y at GOTPCREL(%rip), %rax
 





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