forked from OSchip/llvm-project
[llvm-objdump/llvm-readobj/obj2yaml/yaml2obj] Support DT_PPC_GOT and DT_PPC_OPT
In glibc, DT_PPC_GOT indicates that PowerPC32 Secure PLT ABI is used. I plan to use it in D62464. DT_PPC_OPT currently indicates if a TLSDESC inspired TLS optimization is enabled. Reviewed By: grimar, jhenderson, rupprecht Differential Revision: https://reviews.llvm.org/D62851 llvm-svn: 362569
This commit is contained in:
Fangrui Song
parent
fe97754acf
commit
f090e6f7b6
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@ -21,6 +21,11 @@
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#define MIPS_DYNAMIC_TAG_DEFINED
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#endif
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#ifndef PPC_DYNAMIC_TAG
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#define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
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#define PPC_DYNAMIC_TAG_DEFINED
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#endif
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#ifndef PPC64_DYNAMIC_TAG
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#define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
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#define PPC64_DYNAMIC_TAG_DEFINED
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@ -199,6 +204,10 @@ MIPS_DYNAMIC_TAG(MIPS_RWPLT, 0x70000034) // Points to the base
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MIPS_DYNAMIC_TAG(MIPS_RLD_MAP_REL, 0x70000035) // Relative offset of run time loader
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// map, used for debugging.
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// PPC specific dynamic table entries.
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PPC_DYNAMIC_TAG(PPC_GOT, 0x70000000) // Uses Secure PLT ABI.
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PPC_DYNAMIC_TAG(PPC_OPT, 0x70000001) // Has TLS optimization.
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// PPC64 specific dynamic table entries.
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PPC64_DYNAMIC_TAG(PPC64_GLINK, 0x70000000) // Address of 32 bytes before the
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// first glink lazy resolver stub.
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@ -225,6 +234,10 @@ DYNAMIC_TAG(FILTER, 0x7FFFFFFF) // Shared object to get values from
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#undef HEXAGON_DYNAMIC_TAG
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#undef HEXAGON_DYNAMIC_TAG_DEFINED
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#endif
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#ifdef PPC_DYNAMIC_TAG_DEFINED
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#undef PPC_DYNAMIC_TAG
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#undef PPC_DYNAMIC_TAG_DEFINED
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#endif
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#ifdef PPC64_DYNAMIC_TAG_DEFINED
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#undef PPC64_DYNAMIC_TAG
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#undef PPC64_DYNAMIC_TAG_DEFINED
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@ -683,6 +683,7 @@ void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
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#define AARCH64_DYNAMIC_TAG(name, value)
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#define MIPS_DYNAMIC_TAG(name, value)
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#define HEXAGON_DYNAMIC_TAG(name, value)
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#define PPC_DYNAMIC_TAG(name, value)
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#define PPC64_DYNAMIC_TAG(name, value)
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// Ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
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#define DYNAMIC_TAG_MARKER(name, value)
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@ -711,6 +712,13 @@ void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
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#undef HEXAGON_DYNAMIC_TAG
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#define HEXAGON_DYNAMIC_TAG(name, value)
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break;
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case ELF::EM_PPC:
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#undef PPC_DYNAMIC_TAG
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#define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
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#include "llvm/BinaryFormat/DynamicTags.def"
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#undef PPC_DYNAMIC_TAG
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#define PPC_DYNAMIC_TAG(name, value)
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break;
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case ELF::EM_PPC64:
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#undef PPC64_DYNAMIC_TAG
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#define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
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@ -725,6 +733,7 @@ void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
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#undef AARCH64_DYNAMIC_TAG
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#undef MIPS_DYNAMIC_TAG
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#undef HEXAGON_DYNAMIC_TAG
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#undef PPC_DYNAMIC_TAG
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#undef PPC64_DYNAMIC_TAG
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#undef DYNAMIC_TAG_MARKER
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#undef STRINGIFY
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@ -1,4 +1,4 @@
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# Test that hexagon machine-specific tags can be dumped.
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## Test that hexagon machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=1 -o %t.hex \
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# RUN: %S/../llvm-readobj/Inputs/elf-dynamic-tags-machine-specific.yaml
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# RUN: llvm-objdump -p %t.hex | FileCheck %s --check-prefix=HEXAGON
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@ -11,7 +11,7 @@
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# HEXAGON-NEXT: <unknown:>0x1234abcd 0x0000000000000001
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# Test that MIPS machine-specific tags can be dumped.
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## Test that MIPS machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=2 -o %t.mips \
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# RUN: %S/../llvm-readobj/Inputs/elf-dynamic-tags-machine-specific.yaml
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# RUN: llvm-objdump -p %t.mips | FileCheck %s --check-prefix=MIPS
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@ -66,12 +66,23 @@
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# MIPS-NEXT: <unknown:>0x1234abcd 0x0000000000000001
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# Test that PPC64 machine-specific tags can be dumped.
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## Test that PPC machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=3 -o %t.ppc \
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# RUN: %S/../llvm-readobj/Inputs/elf-dynamic-tags-machine-specific.yaml
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# RUN: llvm-objdump -p %t.ppc | FileCheck %s --check-prefix=PPC
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# PPC: Dynamic Section:
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# PPC-NEXT: HASH 0x0000000000001000
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# PPC-NEXT: PPC64_GLINK 0x0000000000001000
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# PPC-NEXT: <unknown:>0x1234abcd 0x0000000000000001
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# PPC-NEXT: PPC_GOT 0x000200c0
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# PPC-NEXT: PPC_OPT 0x00000001
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# PPC-NEXT: <unknown:>0x1234abcd 0x00000001
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## Test that PPC64 machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=4 -o %t.ppc64 \
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# RUN: %S/../llvm-readobj/Inputs/elf-dynamic-tags-machine-specific.yaml
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# RUN: llvm-objdump -p %t.ppc64 | FileCheck %s --check-prefix=PPC64
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# PPC64: Dynamic Section:
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# PPC64-NEXT: HASH 0x0000000000001000
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# PPC64-NEXT: PPC64_GLINK 0x0000000000001000
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# PPC64-NEXT: <unknown:>0x1234abcd 0x0000000000000001
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@ -165,7 +165,43 @@ ProgramHeaders:
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Sections:
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- Section: .dynamic
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# Third document: PPC64
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# Third document: PPC
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--- !ELF
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2MSB
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Type: ET_EXEC
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Machine: EM_PPC
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Sections:
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- Name: .dynstr
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Type: SHT_STRTAB
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Address: 0x200
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Size: 0x10
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Content: "004400550066007700"
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Address: 0x20000
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Entries:
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- Tag: DT_PPC_GOT
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Value: 0x200c0
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- Tag: DT_PPC_OPT
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Value: 1
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- Tag: 0x1234abcd
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Value: 0x1
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- Tag: DT_NULL
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Value: 0
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ProgramHeaders:
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- Type: PT_LOAD
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VAddr: 0x1000
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Sections:
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- Section: .dynstr
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- Section: .dynamic
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- Type: PT_DYNAMIC
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VAddr: 0x20000
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Sections:
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- Section: .dynamic
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# Fourth document: PPC64
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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@ -132,28 +132,49 @@
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# GNU-MIPS-NEXT: 0x0000000000000000 (NULL) 0x0
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# Test that PPC64 machine-specific tags can be dumped.
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# Test that PPC machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=3 %S/Inputs/elf-dynamic-tags-machine-specific.yaml -o %t.ppc
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# RUN: llvm-readobj --dynamic-table %t.ppc | FileCheck %s --check-prefix=LLVM-PPC
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# RUN: llvm-readelf --dynamic-table %t.ppc | FileCheck %s --check-prefix=GNU-PPC
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# LLVM-PPC: DynamicSection [ (4 entries)
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# LLVM-PPC-NEXT: Tag Type Name/Value
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# LLVM-PPC-NEXT: 0x0000000000000004 HASH 0x1000
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# LLVM-PPC-NEXT: 0x0000000070000000 PPC64_GLINK 0x1000
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# LLVM-PPC-NEXT: 0x000000001234ABCD unknown 0x1
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# LLVM-PPC-NEXT: 0x0000000000000000 NULL 0x0
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# LLVM-PPC-NEXT: 0x70000000 PPC_GOT 0x200C0
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# LLVM-PPC-NEXT: 0x70000001 PPC_OPT 0x1
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# LLVM-PPC-NEXT: 0x1234ABCD unknown 0x1
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# LLVM-PPC-NEXT: 0x00000000 NULL 0x0
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# LLVM-PPC-NEXT: ]
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# GNU-PPC: Dynamic section at offset {{.*}} contains 4 entries:
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# GNU-PPC-NEXT: Tag Type Name/Value
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# GNU-PPC-NEXT: 0x0000000000000004 (HASH) 0x1000
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# GNU-PPC-NEXT: 0x0000000070000000 (PPC64_GLINK) 0x1000
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# GNU-PPC-NEXT: 0x000000001234abcd (unknown) 0x1
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# GNU-PPC-NEXT: 0x0000000000000000 (NULL) 0x0
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# GNU-PPC-NEXT: 0x70000000 (PPC_GOT) 0x200c0
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# GNU-PPC-NEXT: 0x70000001 (PPC_OPT) 0x1
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# GNU-PPC-NEXT: 0x1234abcd (unknown) 0x1
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# GNU-PPC-NEXT: 0x00000000 (NULL) 0x0
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# Test that PPC64 machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=4 %S/Inputs/elf-dynamic-tags-machine-specific.yaml -o %t.ppc64
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# RUN: llvm-readobj --dynamic-table %t.ppc64 | FileCheck %s --check-prefix=LLVM-PPC64
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# RUN: llvm-readelf --dynamic-table %t.ppc64 | FileCheck %s --check-prefix=GNU-PPC64
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# LLVM-PPC64: DynamicSection [ (4 entries)
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# LLVM-PPC64-NEXT: Tag Type Name/Value
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# LLVM-PPC64-NEXT: 0x0000000000000004 HASH 0x1000
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# LLVM-PPC64-NEXT: 0x0000000070000000 PPC64_GLINK 0x1000
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# LLVM-PPC64-NEXT: 0x000000001234ABCD unknown 0x1
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# LLVM-PPC64-NEXT: 0x0000000000000000 NULL 0x0
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# LLVM-PPC64-NEXT: ]
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# GNU-PPC64: Dynamic section at offset {{.*}} contains 4 entries:
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# GNU-PPC64-NEXT: Tag Type Name/Value
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# GNU-PPC64-NEXT: 0x0000000000000004 (HASH) 0x1000
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# GNU-PPC64-NEXT: 0x0000000070000000 (PPC64_GLINK) 0x1000
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# GNU-PPC64-NEXT: 0x000000001234abcd (unknown) 0x1
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# GNU-PPC64-NEXT: 0x0000000000000000 (NULL) 0x0
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# Test that AARCH64 machine-specific tags can be dumped.
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# RUN: yaml2obj --docnum=4 %S/Inputs/elf-dynamic-tags-machine-specific.yaml -o %t.aarch64
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# RUN: yaml2obj --docnum=5 %S/Inputs/elf-dynamic-tags-machine-specific.yaml -o %t.aarch64
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# RUN: llvm-readobj --dynamic-table %t.aarch64 | FileCheck %s --check-prefix=LLVM-AARCH64
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# RUN: llvm-readelf --dynamic-table %t.aarch64 | FileCheck %s --check-prefix=GNU-AARCH64
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@ -229,9 +229,33 @@ Sections:
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- Tag: DT_HEXAGON_PLT
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Value: 0x0000000000000003
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## Check we can handle PPC64 specific tags.
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## Check we can handle PPC specific tags.
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# RUN: yaml2obj -docnum=3 %s -o %t3
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# RUN: obj2yaml %t3 | FileCheck %s --check-prefix=EM_PPC64
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# RUN: obj2yaml %t3 | FileCheck %s --check-prefix=EM_PPC
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# EM_PPC: - Tag: DT_PPC_GOT
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# EM_PPC-NEXT: Value: 0x0000000000020000
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# EM_PPC-NEXT: - Tag: DT_PPC_OPT
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# EM_PPC-NEXT: Value: 0x0000000000000001
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--- !ELF
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2MSB
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Type: ET_REL
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Machine: EM_PPC
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Sections:
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_PPC_GOT
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Value: 0x0000000000020000
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- Tag: DT_PPC_OPT
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Value: 0x0000000000000001
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## Check we can handle PPC64 specific tags.
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# RUN: yaml2obj -docnum=4 %s -o %t4
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# RUN: obj2yaml %t4 | FileCheck %s --check-prefix=EM_PPC64
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# EM_PPC64: - Tag: DT_PPC64_GLINK
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# EM_PPC64-NEXT: Value: 0x0000000000000001
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@ -250,7 +274,7 @@ Sections:
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Value: 0x0000000000000001
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## Check we can handle AARCH64 specific tags.
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# RUN: yaml2obj -docnum=4 %s -o %t2
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# RUN: yaml2obj -docnum=5 %s -o %t2
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# RUN: obj2yaml %t2 | FileCheck %s --check-prefix=AARCH64
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# AARCH64: - Tag: DT_AARCH64_BTI_PLT
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@ -278,7 +302,7 @@ Sections:
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## Here for EM_PPC64 we are trying to use DT_HEXAGON_SYMSZ
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## instead of DT_PPC64_GLINK. They both have value of 0x70000000.
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# RUN: not yaml2obj -docnum=5 %s 2>&1 | FileCheck %s --check-prefix=ERR
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# RUN: not yaml2obj -docnum=6 %s 2>&1 | FileCheck %s --check-prefix=ERR
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# ERR: error: invalid hex64 number
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# ERR-NEXT: - Tag: DT_HEXAGON_SYMSZ
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