[Object] Add DF_1_PIE

This flag (and the whole field DT_FLAGS_1) originated from Solaris. I intend to use it in an LLD patch D80872.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D80871

diff --git a/llvm/include/llvm/BinaryFormat/ELF.h b/llvm/include/llvm/BinaryFormat/ELF.h
index 1a17135..3957c13 100644 (file)
--- a/llvm/include/llvm/BinaryFormat/ELF.h
+++ b/llvm/include/llvm/BinaryFormat/ELF.h
@@ -1296,7 +1296,8 @@ enum {
   DF_1_NORELOC = 0x00400000,
   DF_1_SYMINTPOSE = 0x00800000, // Object has individual interposers.
   DF_1_GLOBAUDIT = 0x01000000,  // Global auditing required.
-  DF_1_SINGLETON = 0x02000000   // Singleton symbols are used.
+  DF_1_SINGLETON = 0x02000000,  // Singleton symbols are used.
+  DF_1_PIE = 0x08000000,        // Object is a position-independent executable.
 };
 
 // DT_MIPS_FLAGS values.

diff --git a/llvm/test/tools/llvm-readobj/ELF/dynamic-tags.test b/llvm/test/tools/llvm-readobj/ELF/dynamic-tags.test
index 0f3fe44..c7bd551 100644 (file)
--- a/llvm/test/tools/llvm-readobj/ELF/dynamic-tags.test
+++ b/llvm/test/tools/llvm-readobj/ELF/dynamic-tags.test
@@ -59,7 +59,7 @@
 # LLVM64-NEXT:  0x000000006FFFFEF7 TLSDESC_GOT          0x1000
 # LLVM64-NEXT:  0x000000006FFFFFF9 RELACOUNT            0
 # LLVM64-NEXT:  0x000000006FFFFFFA RELCOUNT             0
-# LLVM64-NEXT:  0x000000006FFFFFFB FLAGS_1              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON {{$}}
+# LLVM64-NEXT:  0x000000006FFFFFFB FLAGS_1              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON PIE {{$}}
 # LLVM64-NEXT:  0x000000006FFFFFF0 VERSYM               0x1000
 # LLVM64-NEXT:  0x000000006FFFFFFC VERDEF               0x1000
 # LLVM64-NEXT:  0x000000006FFFFFFD VERDEFNUM            0
@@ -124,7 +124,7 @@
 # GNU64-NEXT:  0x000000006ffffef7 (TLSDESC_GOT)          0x1000
 # GNU64-NEXT:  0x000000006ffffff9 (RELACOUNT)            0
 # GNU64-NEXT:  0x000000006ffffffa (RELCOUNT)             0
-# GNU64-NEXT:  0x000000006ffffffb (FLAGS_1)              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON {{$}}
+# GNU64-NEXT:  0x000000006ffffffb (FLAGS_1)              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON PIE {{$}}
 # GNU64-NEXT:  0x000000006ffffff0 (VERSYM)               0x1000
 # GNU64-NEXT:  0x000000006ffffffc (VERDEF)               0x1000
 # GNU64-NEXT:  0x000000006ffffffd (VERDEFNUM)            0
@@ -349,7 +349,7 @@ ProgramHeaders:
 # LLVM32-NEXT:  0x6FFFFEF7 TLSDESC_GOT          0x1000
 # LLVM32-NEXT:  0x6FFFFFF9 RELACOUNT            0
 # LLVM32-NEXT:  0x6FFFFFFA RELCOUNT             0
-# LLVM32-NEXT:  0x6FFFFFFB FLAGS_1              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON {{$}}
+# LLVM32-NEXT:  0x6FFFFFFB FLAGS_1              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON PIE {{$}}
 # LLVM32-NEXT:  0x6FFFFFF0 VERSYM               0x1000
 # LLVM32-NEXT:  0x6FFFFFFC VERDEF               0x1000
 # LLVM32-NEXT:  0x6FFFFFFD VERDEFNUM            0
@@ -414,7 +414,7 @@ ProgramHeaders:
 # GNU32-NEXT:  0x6ffffef7 (TLSDESC_GOT)          0x1000
 # GNU32-NEXT:  0x6ffffff9 (RELACOUNT)            0
 # GNU32-NEXT:  0x6ffffffa (RELCOUNT)             0
-# GNU32-NEXT:  0x6ffffffb (FLAGS_1)              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON {{$}}
+# GNU32-NEXT:  0x6ffffffb (FLAGS_1)              NOW GLOBAL GROUP NODELETE LOADFLTR INITFIRST NOOPEN ORIGIN DIRECT TRANS INTERPOSE NODEFLIB NODUMP CONFALT ENDFILTEE DISPRELDNE DISPRELPND NODIRECT IGNMULDEF NOKSYMS NOHDR EDITED NORELOC SYMINTPOSE GLOBAUDIT SINGLETON PIE {{$}}
 # GNU32-NEXT:  0x6ffffff0 (VERSYM)               0x1000
 # GNU32-NEXT:  0x6ffffffc (VERDEF)               0x1000
 # GNU32-NEXT:  0x6ffffffd (VERDEFNUM)            0

diff --git a/llvm/tools/llvm-readobj/ELFDumper.cpp b/llvm/tools/llvm-readobj/ELFDumper.cpp
index 2c9a4b9..861149a 100644 (file)
--- a/llvm/tools/llvm-readobj/ELFDumper.cpp
+++ b/llvm/tools/llvm-readobj/ELFDumper.cpp
@@ -2350,7 +2350,8 @@ static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
   LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
   LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
   LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
-  LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
+  LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON),
+  LLVM_READOBJ_DT_FLAG_ENT(DF_1, PIE),
 };
 
 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {