[llvm] Revert "[llvm-readobj][AArch64][ELF][PAC] Support ELF AUTH constants" (PR #74816)
Daniil Kovalev via llvm-commits
llvm-commits at lists.llvm.org
Fri Dec 8 00:34:12 PST 2023
https://github.com/kovdan01 created https://github.com/llvm/llvm-project/pull/74816
Reverts llvm/llvm-project#72713
Buildbot tests fail https://lab.llvm.org/buildbot/#/builders/186/builds/13604
on clang-armv7-global-isel builder
>From a801fd32e4a3fac6dd648e6ea5084cdae68bc5b2 Mon Sep 17 00:00:00 2001
From: Daniil Kovalev <kovdan01 at yandex.ru>
Date: Fri, 8 Dec 2023 11:32:25 +0300
Subject: [PATCH] Revert "[llvm-readobj][AArch64][ELF][PAC] Support ELF AUTH
constants (#72713)"
This reverts commit c8616c724fbddd38117240585242f4ae4db1ff3a.
---
.../include/llvm/BinaryFormat/DynamicTags.def | 6 -
llvm/include/llvm/BinaryFormat/ELF.h | 8 --
.../llvm/BinaryFormat/ELFRelocs/AArch64.def | 1 -
llvm/lib/Object/ELF.cpp | 1 -
llvm/lib/ObjectYAML/ELFYAML.cpp | 1 -
.../ELF/AArch64/aarch64-feature-pauth.s | 98 ---------------
.../ELF/broken-dynamic-reloc.test | 40 ------
.../ELF/dynamic-tags-machine-specific.test | 32 ++---
.../ELF/machine-specific-section-types.test | 5 -
.../tools/llvm-readobj/ELF/relr-relocs.test | 17 +--
llvm/tools/llvm-readobj/ELFDumper.cpp | 119 +++---------------
11 files changed, 26 insertions(+), 302 deletions(-)
delete mode 100644 llvm/test/tools/llvm-readobj/ELF/AArch64/aarch64-feature-pauth.s
diff --git a/llvm/include/llvm/BinaryFormat/DynamicTags.def b/llvm/include/llvm/BinaryFormat/DynamicTags.def
index 1502d375f5c45d..f393b82406b41d 100644
--- a/llvm/include/llvm/BinaryFormat/DynamicTags.def
+++ b/llvm/include/llvm/BinaryFormat/DynamicTags.def
@@ -132,12 +132,6 @@ AARCH64_DYNAMIC_TAG(AARCH64_MEMTAG_STACK, 0x7000000c)
AARCH64_DYNAMIC_TAG(AARCH64_MEMTAG_GLOBALS, 0x7000000d)
AARCH64_DYNAMIC_TAG(AARCH64_MEMTAG_GLOBALSSZ, 0x7000000f)
-// AArch64 specific dynamic table entries for RELR auth relocations as described here:
-// https://github.com/ARM-software/abi-aa/blob/main/pauthabielf64/pauthabielf64.rst#dynamic-section
-AARCH64_DYNAMIC_TAG(AARCH64_AUTH_RELRSZ, 0x70000011)
-AARCH64_DYNAMIC_TAG(AARCH64_AUTH_RELR, 0x70000012)
-AARCH64_DYNAMIC_TAG(AARCH64_AUTH_RELRENT, 0x70000013)
-
// Hexagon specific dynamic table entries
HEXAGON_DYNAMIC_TAG(HEXAGON_SYMSZ, 0x70000000)
HEXAGON_DYNAMIC_TAG(HEXAGON_VER, 0x70000001)
diff --git a/llvm/include/llvm/BinaryFormat/ELF.h b/llvm/include/llvm/BinaryFormat/ELF.h
index 40c795410f95ad..d1ce8e20b4be73 100644
--- a/llvm/include/llvm/BinaryFormat/ELF.h
+++ b/llvm/include/llvm/BinaryFormat/ELF.h
@@ -1060,9 +1060,6 @@ enum : unsigned {
SHT_ARM_ATTRIBUTES = 0x70000003U,
SHT_ARM_DEBUGOVERLAY = 0x70000004U,
SHT_ARM_OVERLAYSECTION = 0x70000005U,
- // Special aarch64-specific section for MTE support, as described in:
- // https://github.com/ARM-software/abi-aa/blob/main/pauthabielf64/pauthabielf64.rst#section-types
- SHT_AARCH64_AUTH_RELR = 0x70000004U,
// Special aarch64-specific sections for MTE support, as described in:
// https://github.com/ARM-software/abi-aa/blob/main/memtagabielf64/memtagabielf64.rst#7section-types
SHT_AARCH64_MEMTAG_GLOBALS_STATIC = 0x70000007U,
@@ -1650,11 +1647,6 @@ enum {
NT_ANDROID_TYPE_MEMTAG = 4,
};
-// ARM note types.
-enum {
- NT_ARM_TYPE_PAUTH_ABI_TAG = 1,
-};
-
// Memory tagging values used in NT_ANDROID_TYPE_MEMTAG notes.
enum {
// Enumeration to determine the tagging mode. In Android-land, 'SYNC' means
diff --git a/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def b/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def
index b8ab5113bedf80..b507109b19e1b9 100644
--- a/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def
+++ b/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def
@@ -135,7 +135,6 @@ ELF_RELOC(R_AARCH64_TLS_TPREL64, 0x406)
ELF_RELOC(R_AARCH64_TLSDESC, 0x407)
ELF_RELOC(R_AARCH64_IRELATIVE, 0x408)
ELF_RELOC(R_AARCH64_AUTH_ABS64, 0xe100)
-ELF_RELOC(R_AARCH64_AUTH_RELATIVE, 0xe200)
// ELF_RELOC(R_AARCH64_P32_NONE, 0)
ELF_RELOC(R_AARCH64_P32_ABS32, 0x001)
diff --git a/llvm/lib/Object/ELF.cpp b/llvm/lib/Object/ELF.cpp
index 36847d1a2a4223..1d73a6ffa73f5f 100644
--- a/llvm/lib/Object/ELF.cpp
+++ b/llvm/lib/Object/ELF.cpp
@@ -273,7 +273,6 @@ StringRef llvm::object::getELFSectionTypeName(uint32_t Machine, unsigned Type) {
break;
case ELF::EM_AARCH64:
switch (Type) {
- STRINGIFY_ENUM_CASE(ELF, SHT_AARCH64_AUTH_RELR);
STRINGIFY_ENUM_CASE(ELF, SHT_AARCH64_MEMTAG_GLOBALS_DYNAMIC);
STRINGIFY_ENUM_CASE(ELF, SHT_AARCH64_MEMTAG_GLOBALS_STATIC);
}
diff --git a/llvm/lib/ObjectYAML/ELFYAML.cpp b/llvm/lib/ObjectYAML/ELFYAML.cpp
index c47d4eaa309dcd..1da4ea4e3edc91 100644
--- a/llvm/lib/ObjectYAML/ELFYAML.cpp
+++ b/llvm/lib/ObjectYAML/ELFYAML.cpp
@@ -719,7 +719,6 @@ void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration(
ECase(SHT_MSP430_ATTRIBUTES);
break;
case ELF::EM_AARCH64:
- ECase(SHT_AARCH64_AUTH_RELR);
ECase(SHT_AARCH64_MEMTAG_GLOBALS_STATIC);
ECase(SHT_AARCH64_MEMTAG_GLOBALS_DYNAMIC);
break;
diff --git a/llvm/test/tools/llvm-readobj/ELF/AArch64/aarch64-feature-pauth.s b/llvm/test/tools/llvm-readobj/ELF/AArch64/aarch64-feature-pauth.s
deleted file mode 100644
index f28d92eae85754..00000000000000
--- a/llvm/test/tools/llvm-readobj/ELF/AArch64/aarch64-feature-pauth.s
+++ /dev/null
@@ -1,98 +0,0 @@
-# RUN: rm -rf %t && split-file %s %t && cd %t
-
-# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu abi-tag.s -o tag.o
-# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu abi-tag-short.s -o tag-short.o
-# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu abi-tag-long.s -o tag-long.o
-
-# RUN: llvm-readelf --notes tag.o | FileCheck --check-prefix NORMAL %s
-# RUN: llvm-readelf --notes tag-short.o | FileCheck --check-prefix SHORT %s
-# RUN: llvm-readelf --notes tag-long.o | FileCheck --check-prefix LONG %s
-
-# NORMAL: AArch64 PAuth ABI tag: platform 0x2a, version 0x1
-# SHORT: AArch64 PAuth ABI tag: <corrupted size: expected at least 16, got 12>
-# LONG: AArch64 PAuth ABI tag: platform 0x2a, version 0x1, additional info 0xEFCDAB8967452301
-
-# RUN: llvm-readobj --notes tag.o | FileCheck --check-prefix LLVM-NORMAL %s
-# RUN: llvm-readobj --notes tag-short.o | FileCheck --check-prefix LLVM-SHORT %s
-# RUN: llvm-readobj --notes tag-long.o | FileCheck --check-prefix LLVM-LONG %s
-
-# LLVM-SHORT: Notes [
-# LLVM-SHORT-NEXT: NoteSection {
-# LLVM-SHORT-NEXT: Name: .note.AARCH64-PAUTH-ABI-tag
-# LLVM-SHORT-NEXT: Offset: 0x40
-# LLVM-SHORT-NEXT: Size: 0x1C
-# LLVM-SHORT-NEXT: Note {
-# LLVM-SHORT-NEXT: Owner: ARM
-# LLVM-SHORT-NEXT: Data size: 0xC
-# LLVM-SHORT-NEXT: Type: NT_ARM_TYPE_PAUTH_ABI_TAG
-# LLVM-SHORT-NEXT: Description data (
-# LLVM-SHORT-NEXT: 0000: 2A000000 00000000 01000000
-# LLVM-SHORT-NEXT: )
-# LLVM-SHORT-NEXT: }
-# LLVM-SHORT-NEXT: }
-# LLVM-SHORT-NEXT: ]
-
-# LLVM-NORMAL: Notes [
-# LLVM-NORMAL-NEXT: NoteSection {
-# LLVM-NORMAL-NEXT: Name: .note.AARCH64-PAUTH-ABI-tag
-# LLVM-NORMAL-NEXT: Offset: 0x40
-# LLVM-NORMAL-NEXT: Size: 0x20
-# LLVM-NORMAL-NEXT: Note {
-# LLVM-NORMAL-NEXT: Owner: ARM
-# LLVM-NORMAL-NEXT: Data size: 0x10
-# LLVM-NORMAL-NEXT: Type: NT_ARM_TYPE_PAUTH_ABI_TAG
-# LLVM-NORMAL-NEXT: Platform: 42
-# LLVM-NORMAL-NEXT: Version: 1
-# LLVM-NORMAL-NEXT: }
-# LLVM-NORMAL-NEXT: }
-# LLVM-NORMAL-NEXT: ]
-
-# LLVM-LONG: Notes [
-# LLVM-LONG-NEXT: NoteSection {
-# LLVM-LONG-NEXT: Name: .note.AARCH64-PAUTH-ABI-tag
-# LLVM-LONG-NEXT: Offset: 0x40
-# LLVM-LONG-NEXT: Size: 0x28
-# LLVM-LONG-NEXT: Note {
-# LLVM-LONG-NEXT: Owner: ARM
-# LLVM-LONG-NEXT: Data size: 0x18
-# LLVM-LONG-NEXT: Type: NT_ARM_TYPE_PAUTH_ABI_TAG
-# LLVM-LONG-NEXT: Platform: 42
-# LLVM-LONG-NEXT: Version: 1
-# LLVM-LONG-NEXT: Additional info: EFCDAB8967452301
-# LLVM-LONG-NEXT: }
-# LLVM-LONG-NEXT: }
-# LLVM-LONG-NEXT: ]
-
-#--- abi-tag.s
-
-.section ".note.AARCH64-PAUTH-ABI-tag", "a"
-.long 4
-.long 16
-.long 1
-.asciz "ARM"
-
-.quad 42 // platform
-.quad 1 // version
-
-#--- abi-tag-short.s
-
-.section ".note.AARCH64-PAUTH-ABI-tag", "a"
-.long 4
-.long 12
-.long 1
-.asciz "ARM"
-
-.quad 42
-.word 1
-
-#--- abi-tag-long.s
-
-.section ".note.AARCH64-PAUTH-ABI-tag", "a"
-.long 4
-.long 24
-.long 1
-.asciz "ARM"
-
-.quad 42 // platform
-.quad 1 // version
-.quad 0x0123456789ABCDEF // extra data
diff --git a/llvm/test/tools/llvm-readobj/ELF/broken-dynamic-reloc.test b/llvm/test/tools/llvm-readobj/ELF/broken-dynamic-reloc.test
index f4899f6df65131..1a1c6dd4d0d1c2 100644
--- a/llvm/test/tools/llvm-readobj/ELF/broken-dynamic-reloc.test
+++ b/llvm/test/tools/llvm-readobj/ELF/broken-dynamic-reloc.test
@@ -459,43 +459,3 @@ ProgramHeaders:
- Type: PT_DYNAMIC
FirstSec: .dynamic
LastSec: .dynamic
-
-## Show we print a warning for an invalid relocation table size stored in a DT_AARCH64_AUTH_RELRSZ entry.
-# RUN: yaml2obj --docnum=8 -DRELTYPE=RELR -DTAG1=DT_AARCH64_AUTH_RELRSZ -DTAG1VAL=0xFF -DTAG2=DT_AARCH64_AUTH_RELRENT %s -o %t14
-# RUN: llvm-readobj --dyn-relocations %t14 2>&1 | FileCheck %s -DFILE=%t14 --check-prefix=INVALID-DT-AARCH64-AUTH-RELRSZ
-# RUN: llvm-readelf --dyn-relocations %t14 2>&1 | FileCheck %s -DFILE=%t14 --check-prefix=INVALID-DT-AARCH64-AUTH-RELRSZ
-
-# INVALID-DT-AARCH64-AUTH-RELRSZ: warning: '[[FILE]]': invalid DT_AARCH64_AUTH_RELRSZ value (0xff) or DT_AARCH64_AUTH_RELRENT value (0x18)
-
-## Show we print a warning for an invalid relocation table entry size stored in a DT_AARCH64_AUTH_RELRENT entry.
-# RUN: yaml2obj --docnum=8 -DRELTYPE=RELR -DTAG1=DT_AARCH64_AUTH_RELRSZ -DTAG2=DT_AARCH64_AUTH_RELRENT -DTAG2VAL=0xFF %s -o %t15
-# RUN: llvm-readobj --dyn-relocations %t15 2>&1 | FileCheck %s -DFILE=%t15 --check-prefix=INVALID-DT-AARCH64-AUTH-RELRENT
-# RUN: llvm-readelf --dyn-relocations %t15 2>&1 | FileCheck %s -DFILE=%t15 --check-prefix=INVALID-DT-AARCH64-AUTH-RELRENT
-
-# INVALID-DT-AARCH64-AUTH-RELRENT: invalid DT_AARCH64_AUTH_RELRSZ value (0x18) or DT_AARCH64_AUTH_RELRENT value (0xff)
-
---- !ELF
-FileHeader:
- Class: ELFCLASS64
- Data: ELFDATA2LSB
- Type: ET_DYN
- Machine: EM_AARCH64
-Sections:
- - Name: .relx.dyn
- Type: SHT_[[RELTYPE]]
- - Name: .dynamic
- Type: SHT_DYNAMIC
- Entries:
- - Tag: DT_[[RELTYPE]]
- Value: 0x0
- - Tag: [[TAG1]]
- Value: [[TAG1VAL=0x18]]
- - Tag: [[TAG2]]
- Value: [[TAG2VAL=0x18]]
- - Tag: DT_NULL
- Value: 0x0
-DynamicSymbols: []
-ProgramHeaders:
- - Type: PT_LOAD
- FirstSec: .relx.dyn
- LastSec: .dynamic
diff --git a/llvm/test/tools/llvm-readobj/ELF/dynamic-tags-machine-specific.test b/llvm/test/tools/llvm-readobj/ELF/dynamic-tags-machine-specific.test
index e7bd9cf9b48b23..c32ea33b9b3cbf 100644
--- a/llvm/test/tools/llvm-readobj/ELF/dynamic-tags-machine-specific.test
+++ b/llvm/test/tools/llvm-readobj/ELF/dynamic-tags-machine-specific.test
@@ -355,26 +355,20 @@ ProgramHeaders:
# RUN: llvm-readobj --dynamic-table %t.aarch64 | FileCheck %s --check-prefix=LLVM-AARCH64
# RUN: llvm-readelf --dynamic-table %t.aarch64 | FileCheck %s --check-prefix=GNU-AARCH64
-# LLVM-AARCH64: DynamicSection [ (7 entries)
+# LLVM-AARCH64: DynamicSection [ (4 entries)
# LLVM-AARCH64-NEXT: Tag Type Name/Value
-# LLVM-AARCH64-NEXT: 0x0000000070000001 AARCH64_BTI_PLT 1
-# LLVM-AARCH64-NEXT: 0x0000000070000003 AARCH64_PAC_PLT 2
-# LLVM-AARCH64-NEXT: 0x0000000070000005 AARCH64_VARIANT_PCS 3
-# LLVM-AARCH64-NEXT: 0x0000000070000012 AARCH64_AUTH_RELR 0x4
-# LLVM-AARCH64-NEXT: 0x0000000070000011 AARCH64_AUTH_RELRSZ 5
-# LLVM-AARCH64-NEXT: 0x0000000070000013 AARCH64_AUTH_RELRENT 6
-# LLVM-AARCH64-NEXT: 0x0000000000000000 NULL 0x0
+# LLVM-AARCH64-NEXT: 0x0000000070000001 AARCH64_BTI_PLT 1
+# LLVM-AARCH64-NEXT: 0x0000000070000003 AARCH64_PAC_PLT 2
+# LLVM-AARCH64-NEXT: 0x0000000070000005 AARCH64_VARIANT_PCS 3
+# LLVM-AARCH64-NEXT: 0x0000000000000000 NULL 0x0
# LLVM-AARCH64-NEXT:]
-# GNU-AARCH64: Dynamic section at offset {{.*}} contains 7 entries:
+# GNU-AARCH64: Dynamic section at offset {{.*}} contains 4 entries:
# GNU-AARCH64-NEXT: Tag Type Name/Value
-# GNU-AARCH64-NEXT: 0x0000000070000001 (AARCH64_BTI_PLT) 1
-# GNU-AARCH64-NEXT: 0x0000000070000003 (AARCH64_PAC_PLT) 2
-# GNU-AARCH64-NEXT: 0x0000000070000005 (AARCH64_VARIANT_PCS) 3
-# GNU-AARCH64-NEXT: 0x0000000070000012 (AARCH64_AUTH_RELR) 0x4
-# GNU-AARCH64-NEXT: 0x0000000070000011 (AARCH64_AUTH_RELRSZ) 5
-# GNU-AARCH64-NEXT: 0x0000000070000013 (AARCH64_AUTH_RELRENT) 6
-# GNU-AARCH64-NEXT: 0x0000000000000000 (NULL) 0x0
+# GNU-AARCH64-NEXT: 0x0000000070000001 (AARCH64_BTI_PLT) 1
+# GNU-AARCH64-NEXT: 0x0000000070000003 (AARCH64_PAC_PLT) 2
+# GNU-AARCH64-NEXT: 0x0000000070000005 (AARCH64_VARIANT_PCS) 3
+# GNU-AARCH64-NEXT: 0x0000000000000000 (NULL) 0x0
--- !ELF
FileHeader:
@@ -392,12 +386,6 @@ Sections:
Value: 2
- Tag: DT_AARCH64_VARIANT_PCS
Value: 3
- - Tag: DT_AARCH64_AUTH_RELR
- Value: 4
- - Tag: DT_AARCH64_AUTH_RELRSZ
- Value: 5
- - Tag: DT_AARCH64_AUTH_RELRENT
- Value: 6
- Tag: DT_NULL
Value: 0
ProgramHeaders:
diff --git a/llvm/test/tools/llvm-readobj/ELF/machine-specific-section-types.test b/llvm/test/tools/llvm-readobj/ELF/machine-specific-section-types.test
index f9524383e80b6d..99fafe35fa4433 100644
--- a/llvm/test/tools/llvm-readobj/ELF/machine-specific-section-types.test
+++ b/llvm/test/tools/llvm-readobj/ELF/machine-specific-section-types.test
@@ -53,14 +53,11 @@
# MIPS-GNU: abiflags MIPS_ABIFLAGS
# MIPS-GNU: dwarf MIPS_DWARF
-# AARCH64-LLVM: Name: aarch64_auth_relr
-# AARCH64-LLVM: Type: SHT_AARCH64_AUTH_RELR
# AARCH64-LLVM: Name: .memtag.globals.dynamic
# AARCH64-LLVM: Type: SHT_AARCH64_MEMTAG_GLOBALS_DYNAMIC
# AARCH64-LLVM: Name: .memtag.globals.static
# AARCH64-LLVM: Type: SHT_AARCH64_MEMTAG_GLOBALS_STATIC
-# AARCH64-GNU: aarch64_auth_relr AARCH64_AUTH_RELR
# AARCH64-GNU: .memtag.globals.dynamic AARCH64_MEMTAG_GLOBALS_DYNAMIC
# AARCH64-GNU: .memtag.globals.static AARCH64_MEMTAG_GLOBALS_STATIC
@@ -116,8 +113,6 @@ FileHeader:
Type: ET_REL
Machine: EM_AARCH64
Sections:
- - Name: aarch64_auth_relr
- Type: SHT_AARCH64_AUTH_RELR
- Name: .memtag.globals.dynamic
Type: SHT_AARCH64_MEMTAG_GLOBALS_DYNAMIC
- Name: .memtag.globals.static
diff --git a/llvm/test/tools/llvm-readobj/ELF/relr-relocs.test b/llvm/test/tools/llvm-readobj/ELF/relr-relocs.test
index 91b148ebb6e3c8..3bb54b1adc1f4f 100644
--- a/llvm/test/tools/llvm-readobj/ELF/relr-relocs.test
+++ b/llvm/test/tools/llvm-readobj/ELF/relr-relocs.test
@@ -158,7 +158,7 @@ Sections:
Link: [[LINK=<none>]]
## Check we report a warning when we are unable to dump relocations
-## for a SHT_RELR/SHT_ANDROID_RELR/SHT_AARCH64_AUTH_RELR section.
+## for a SHT_RELR/SHT_ANDROID_RELR section.
## Case A: check the case when relocations can't be read from an SHT_RELR section.
# RUN: yaml2obj --docnum=2 -DENTSIZE=1 %s -o %t2.broken
@@ -186,20 +186,7 @@ Sections:
# RUN: llvm-readelf --relocations %t2.broken.android 2>&1 | \
# RUN: FileCheck -DFILE=%t2.broken.android --check-prefix=BROKEN-GNU %s -DSECNAME=SHT_ANDROID_RELR
-## Case C: check the case when we have an SHT_AARCH64_AUTH_RELR section in non-AArch64 ELF.
-## SHT_AARCH64_AUTH_RELR = 0x70000004.
-# RUN: yaml2obj --docnum=2 -DENTSIZE=1 -DSHTYPE=0x70000004 %s -o %t2.broken.aarch64auth
-# RUN: llvm-readobj --relocations %t2.broken.aarch64auth 2>&1 | \
-# RUN: FileCheck -DFILE=%t2.broken.aarch64auth --check-prefix=WRONGARCH-LLVM-AARCH64-AUTH %s -DSECNAME=SHT_AARCH64_AUTH_RELR
-# RUN: llvm-readelf --relocations %t2.broken.aarch64auth 2>&1 | \
-# RUN: FileCheck -DFILE=%t2.broken.aarch64auth --check-prefix=WRONGARCH-GNU-AARCH64-AUTH %s -DSECNAME=SHT_AARCH64_AUTH_RELR
-
-# WRONGARCH-LLVM-AARCH64-AUTH: Relocations [
-# WRONGARCH-LLVM-AARCH64-AUTH-NEXT: ]
-
-# WRONGARCH-GNU-AARCH64-AUTH-NOT: Relocation section
-
-## Check the behavior when the sh_link field of the SHT_RELR/SHT_ANDROID_RELR/SHT_AARCH64_AUTH_RELR section
+## Check the behavior when the sh_link field of the SHT_RELR/SHT_ANDROID_RELR section
## is set to an arbitrary value. Normally, it is set to 0, because such sections contains
## only relative relocations and do not have an associated symbol table, like other
## relocation sections.
diff --git a/llvm/tools/llvm-readobj/ELFDumper.cpp b/llvm/tools/llvm-readobj/ELFDumper.cpp
index 3e20edfff66458..d6d0ea35044ab3 100644
--- a/llvm/tools/llvm-readobj/ELFDumper.cpp
+++ b/llvm/tools/llvm-readobj/ELFDumper.cpp
@@ -2027,18 +2027,6 @@ template <typename ELFT> void ELFDumper<ELFT>::parseDynamicTable() {
uint64_t StringTableSize = 0;
std::optional<DynRegionInfo> DynSymFromTable;
for (const Elf_Dyn &Dyn : dynamic_table()) {
- if (Obj.getHeader().e_machine == EM_AARCH64) {
- switch (Dyn.d_tag) {
- case ELF::DT_AARCH64_AUTH_RELRSZ:
- DynRelrRegion.Size = Dyn.getVal();
- DynRelrRegion.SizePrintName = "DT_AARCH64_AUTH_RELRSZ value";
- continue;
- case ELF::DT_AARCH64_AUTH_RELRENT:
- DynRelrRegion.EntSize = Dyn.getVal();
- DynRelrRegion.EntSizePrintName = "DT_AARCH64_AUTH_RELRENT value";
- continue;
- }
- }
switch (Dyn.d_tag) {
case ELF::DT_HASH:
HashTable = reinterpret_cast<const Elf_Hash *>(
@@ -2102,12 +2090,10 @@ template <typename ELFT> void ELFDumper<ELFT>::parseDynamicTable() {
break;
case ELF::DT_RELR:
case ELF::DT_ANDROID_RELR:
- case ELF::DT_AARCH64_AUTH_RELR:
DynRelrRegion.Addr = toMappedAddr(Dyn.getTag(), Dyn.getPtr());
break;
case ELF::DT_RELRSZ:
case ELF::DT_ANDROID_RELRSZ:
- case ELF::DT_AARCH64_AUTH_RELRSZ:
DynRelrRegion.Size = Dyn.getVal();
DynRelrRegion.SizePrintName = Dyn.d_tag == ELF::DT_RELRSZ
? "DT_RELRSZ value"
@@ -2115,7 +2101,6 @@ template <typename ELFT> void ELFDumper<ELFT>::parseDynamicTable() {
break;
case ELF::DT_RELRENT:
case ELF::DT_ANDROID_RELRENT:
- case ELF::DT_AARCH64_AUTH_RELRENT:
DynRelrRegion.EntSize = Dyn.getVal();
DynRelrRegion.EntSizePrintName = Dyn.d_tag == ELF::DT_RELRENT
? "DT_RELRENT value"
@@ -2482,8 +2467,6 @@ std::string ELFDumper<ELFT>::getDynamicEntry(uint64_t Type,
case DT_PREINIT_ARRAYSZ:
case DT_RELRSZ:
case DT_RELRENT:
- case DT_AARCH64_AUTH_RELRSZ:
- case DT_AARCH64_AUTH_RELRENT:
case DT_ANDROID_RELSZ:
case DT_ANDROID_RELASZ:
return std::to_string(Value) + " (bytes)";
@@ -3816,12 +3799,9 @@ void GNUELFDumper<ELFT>::printRelRelaReloc(const Relocation<ELFT> &R,
}
template <class ELFT>
-static void printRelocHeaderFields(formatted_raw_ostream &OS, unsigned SType,
- const typename ELFT::Ehdr &EHeader) {
+static void printRelocHeaderFields(formatted_raw_ostream &OS, unsigned SType) {
bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA;
- bool IsRelr =
- SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR ||
- (EHeader.e_machine == EM_AARCH64 && SType == ELF::SHT_AARCH64_AUTH_RELR);
+ bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR;
if (ELFT::Is64Bits)
OS << " ";
else
@@ -3846,18 +3826,15 @@ void GNUELFDumper<ELFT>::printDynamicRelocHeader(unsigned Type, StringRef Name,
uint64_t Offset = Reg.Addr - this->Obj.base();
OS << "\n'" << Name.str().c_str() << "' relocation section at offset 0x"
<< utohexstr(Offset, /*LowerCase=*/true) << " contains " << Reg.Size << " bytes:\n";
- printRelocHeaderFields<ELFT>(OS, Type, this->Obj.getHeader());
+ printRelocHeaderFields<ELFT>(OS, Type);
}
template <class ELFT>
-static bool isRelocationSec(const typename ELFT::Shdr &Sec,
- const typename ELFT::Ehdr &EHeader) {
+static bool isRelocationSec(const typename ELFT::Shdr &Sec) {
return Sec.sh_type == ELF::SHT_REL || Sec.sh_type == ELF::SHT_RELA ||
Sec.sh_type == ELF::SHT_RELR || Sec.sh_type == ELF::SHT_ANDROID_REL ||
Sec.sh_type == ELF::SHT_ANDROID_RELA ||
- Sec.sh_type == ELF::SHT_ANDROID_RELR ||
- (EHeader.e_machine == EM_AARCH64 &&
- Sec.sh_type == ELF::SHT_AARCH64_AUTH_RELR);
+ Sec.sh_type == ELF::SHT_ANDROID_RELR;
}
template <class ELFT> void GNUELFDumper<ELFT>::printRelocations() {
@@ -3873,10 +3850,8 @@ template <class ELFT> void GNUELFDumper<ELFT>::printRelocations() {
return RelasOrErr->size();
}
- if (!opts::RawRelr &&
- (Sec.sh_type == ELF::SHT_RELR || Sec.sh_type == ELF::SHT_ANDROID_RELR ||
- (this->Obj.getHeader().e_machine == EM_AARCH64 &&
- Sec.sh_type == ELF::SHT_AARCH64_AUTH_RELR))) {
+ if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR ||
+ Sec.sh_type == ELF::SHT_ANDROID_RELR)) {
Expected<Elf_Relr_Range> RelrsOrErr = this->Obj.relrs(Sec);
if (!RelrsOrErr)
return RelrsOrErr.takeError();
@@ -3888,7 +3863,7 @@ template <class ELFT> void GNUELFDumper<ELFT>::printRelocations() {
bool HasRelocSections = false;
for (const Elf_Shdr &Sec : cantFail(this->Obj.sections())) {
- if (!isRelocationSec<ELFT>(Sec, this->Obj.getHeader()))
+ if (!isRelocationSec<ELFT>(Sec))
continue;
HasRelocSections = true;
@@ -3905,7 +3880,7 @@ template <class ELFT> void GNUELFDumper<ELFT>::printRelocations() {
OS << "\nRelocation section '" << Name << "' at offset 0x"
<< utohexstr(Offset, /*LowerCase=*/true) << " contains " << EntriesNum
<< " entries:\n";
- printRelocHeaderFields<ELFT>(OS, Sec.sh_type, this->Obj.getHeader());
+ printRelocHeaderFields<ELFT>(OS, Sec.sh_type);
this->printRelocationsHelper(Sec);
}
if (!HasRelocSections)
@@ -5337,31 +5312,6 @@ static bool printAndroidNote(raw_ostream &OS, uint32_t NoteType,
return true;
}
-template <class ELFT>
-static bool printAArch64Note(raw_ostream &OS, uint32_t NoteType,
- ArrayRef<uint8_t> Desc) {
- if (NoteType != NT_ARM_TYPE_PAUTH_ABI_TAG)
- return false;
-
- OS << " AArch64 PAuth ABI tag: ";
- if (Desc.size() < 16) {
- OS << format("<corrupted size: expected at least 16, got %d>", Desc.size());
- return false;
- }
-
- uint64_t Platform =
- support::endian::read64<ELFT::TargetEndianness>(Desc.data() + 0);
- uint64_t Version =
- support::endian::read64<ELFT::TargetEndianness>(Desc.data() + 8);
- OS << format("platform 0x%x, version 0x%x", Platform, Version);
-
- if (Desc.size() > 16)
- OS << ", additional info 0x"
- << toHex(ArrayRef<uint8_t>(Desc.data() + 16, Desc.size() - 16));
-
- return true;
-}
-
template <class ELFT>
void GNUELFDumper<ELFT>::printMemtag(
const ArrayRef<std::pair<std::string, std::string>> DynamicEntries,
@@ -5761,10 +5711,6 @@ const NoteType AndroidNoteTypes[] = {
"NT_ANDROID_TYPE_MEMTAG (Android memory tagging information)"},
};
-const NoteType ARMNoteTypes[] = {
- {ELF::NT_ARM_TYPE_PAUTH_ABI_TAG, "NT_ARM_TYPE_PAUTH_ABI_TAG"},
-};
-
const NoteType CoreNoteTypes[] = {
{ELF::NT_PRSTATUS, "NT_PRSTATUS (prstatus structure)"},
{ELF::NT_FPREGSET, "NT_FPREGSET (floating point registers)"},
@@ -5883,8 +5829,6 @@ StringRef getNoteTypeName(const typename ELFT::Note &Note, unsigned ELFType) {
return FindNote(LLVMOMPOFFLOADNoteTypes);
if (Name == "Android")
return FindNote(AndroidNoteTypes);
- if (Name == "ARM")
- return FindNote(ARMNoteTypes);
if (ELFType == ELF::ET_CORE)
return FindNote(CoreNoteTypes);
@@ -6040,9 +5984,6 @@ template <class ELFT> void GNUELFDumper<ELFT>::printNotes() {
} else if (Name == "Android") {
if (printAndroidNote(OS, Type, Descriptor))
return Error::success();
- } else if (Name == "ARM") {
- if (printAArch64Note<ELFT>(OS, Type, Descriptor))
- return Error::success();
}
if (!Descriptor.empty()) {
OS << " description data:";
@@ -6235,13 +6176,11 @@ void ELFDumper<ELFT>::forEachRelocationDo(
toString(std::move(E)));
};
- // SHT_RELR/SHT_ANDROID_RELR/SHT_AARCH64_AUTH_RELR sections do not have an
- // associated symbol table. For them we should not treat the value of the
- // sh_link field as an index of a symbol table.
+ // SHT_RELR/SHT_ANDROID_RELR sections do not have an associated symbol table.
+ // For them we should not treat the value of the sh_link field as an index of
+ // a symbol table.
const Elf_Shdr *SymTab;
- if (Sec.sh_type != ELF::SHT_RELR && Sec.sh_type != ELF::SHT_ANDROID_RELR &&
- !(Obj.getHeader().e_machine == EM_AARCH64 &&
- Sec.sh_type == ELF::SHT_AARCH64_AUTH_RELR)) {
+ if (Sec.sh_type != ELF::SHT_RELR && Sec.sh_type != ELF::SHT_ANDROID_RELR) {
Expected<const Elf_Shdr *> SymTabOrErr = Obj.getSection(Sec.sh_link);
if (!SymTabOrErr) {
Warn(SymTabOrErr.takeError(), "unable to locate a symbol table for");
@@ -6269,10 +6208,6 @@ void ELFDumper<ELFT>::forEachRelocationDo(
Warn(RangeOrErr.takeError());
}
break;
- case ELF::SHT_AARCH64_AUTH_RELR:
- if (Obj.getHeader().e_machine != EM_AARCH64)
- break;
- [[fallthrough]];
case ELF::SHT_RELR:
case ELF::SHT_ANDROID_RELR: {
Expected<Elf_Relr_Range> RangeOrErr = Obj.relrs(Sec);
@@ -6969,7 +6904,7 @@ template <class ELFT> void LLVMELFDumper<ELFT>::printRelocations() {
ListScope D(W, "Relocations");
for (const Elf_Shdr &Sec : cantFail(this->Obj.sections())) {
- if (!isRelocationSec<ELFT>(Sec, this->Obj.getHeader()))
+ if (!isRelocationSec<ELFT>(Sec))
continue;
StringRef Name = this->getPrintableSectionName(Sec);
@@ -7610,29 +7545,6 @@ static bool printAndroidNoteLLVMStyle(uint32_t NoteType, ArrayRef<uint8_t> Desc,
return true;
}
-template <class ELFT>
-static bool printAarch64NoteLLVMStyle(uint32_t NoteType, ArrayRef<uint8_t> Desc,
- ScopedPrinter &W) {
- if (NoteType != NT_ARM_TYPE_PAUTH_ABI_TAG)
- return false;
-
- if (Desc.size() < 16)
- return false;
-
- uint64_t platform =
- support::endian::read64<ELFT::TargetEndianness>(Desc.data() + 0);
- uint64_t version =
- support::endian::read64<ELFT::TargetEndianness>(Desc.data() + 8);
- W.printNumber("Platform", platform);
- W.printNumber("Version", version);
-
- if (Desc.size() > 16)
- W.printString("Additional info",
- toHex(ArrayRef<uint8_t>(Desc.data() + 16, Desc.size() - 16)));
-
- return true;
-}
-
template <class ELFT>
void LLVMELFDumper<ELFT>::printMemtag(
const ArrayRef<std::pair<std::string, std::string>> DynamicEntries,
@@ -7769,9 +7681,6 @@ template <class ELFT> void LLVMELFDumper<ELFT>::printNotes() {
} else if (Name == "Android") {
if (printAndroidNoteLLVMStyle(Type, Descriptor, W))
return Error::success();
- } else if (Name == "ARM") {
- if (printAarch64NoteLLVMStyle<ELFT>(Type, Descriptor, W))
- return Error::success();
}
if (!Descriptor.empty()) {
W.printBinaryBlock("Description data", Descriptor);
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