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[llvm-readobj] Dump GNU_PROPERTY_X86_ISA_1_{NEEDED,USED} notes in .note.gnu.property 

Reviewers: grimar, rupprecht

Reviewed By: rupprecht

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58175

llvm-svn: 353991
This commit is contained in:
Fangrui Song 2019-02-13 23:18:05 +00:00
parent b5fe6fdbc4
commit 91ab9bf32c
3 changed files with 86 additions and 4 deletions
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27
llvm/include/llvm/BinaryFormat/ELF.h
View File

@ -1352,7 +1352,9 @@ enum : unsigned {
GNU_PROPERTY_STACK_SIZE = 1,
GNU_PROPERTY_NO_COPY_ON_PROTECTED = 2,
GNU_PROPERTY_X86_FEATURE_1_AND = 0xc0000002,
GNU_PROPERTY_X86_ISA_1_NEEDED = 0xc0008000,
GNU_PROPERTY_X86_FEATURE_2_NEEDED = 0xc0008001,
GNU_PROPERTY_X86_ISA_1_USED = 0xc0010000,
GNU_PROPERTY_X86_FEATURE_2_USED = 0xc0010001,
};
@ -1361,6 +1363,31 @@ enum : unsigned {
GNU_PROPERTY_X86_FEATURE_1_IBT = 1 << 0,
GNU_PROPERTY_X86_FEATURE_1_SHSTK = 1 << 1,
GNU_PROPERTY_X86_ISA_1_CMOV = 1 << 0,
GNU_PROPERTY_X86_ISA_1_SSE = 1 << 1,
GNU_PROPERTY_X86_ISA_1_SSE2 = 1 << 2,
GNU_PROPERTY_X86_ISA_1_SSE3 = 1 << 3,
GNU_PROPERTY_X86_ISA_1_SSSE3 = 1 << 4,
GNU_PROPERTY_X86_ISA_1_SSE4_1 = 1 << 5,
GNU_PROPERTY_X86_ISA_1_SSE4_2 = 1 << 6,
GNU_PROPERTY_X86_ISA_1_AVX = 1 << 7,
GNU_PROPERTY_X86_ISA_1_AVX2 = 1 << 8,
GNU_PROPERTY_X86_ISA_1_FMA = 1 << 9,
GNU_PROPERTY_X86_ISA_1_AVX512F = 1 << 10,
GNU_PROPERTY_X86_ISA_1_AVX512CD = 1 << 11,
GNU_PROPERTY_X86_ISA_1_AVX512ER = 1 << 12,
GNU_PROPERTY_X86_ISA_1_AVX512PF = 1 << 13,
GNU_PROPERTY_X86_ISA_1_AVX512VL = 1 << 14,
GNU_PROPERTY_X86_ISA_1_AVX512DQ = 1 << 15,
GNU_PROPERTY_X86_ISA_1_AVX512BW = 1 << 16,
GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS = 1 << 17,
GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW = 1 << 18,
GNU_PROPERTY_X86_ISA_1_AVX512_BITALG = 1 << 19,
GNU_PROPERTY_X86_ISA_1_AVX512_IFMA = 1 << 20,
GNU_PROPERTY_X86_ISA_1_AVX512_VBMI = 1 << 21,
GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2 = 1 << 22,
GNU_PROPERTY_X86_ISA_1_AVX512_VNNI = 1 << 23,
GNU_PROPERTY_X86_FEATURE_2_X86 = 1 << 0,
GNU_PROPERTY_X86_FEATURE_2_X87 = 1 << 1,
GNU_PROPERTY_X86_FEATURE_2_MMX = 1 << 2,

22
llvm/test/tools/llvm-readobj/note-gnu-property.s
View File

@ -3,15 +3,17 @@
// RUN: llvm-readobj -elf-output-style GNU --notes %t | FileCheck %s --check-prefix=GNU
// RUN: llvm-readobj -elf-output-style LLVM --notes %t | FileCheck %s --check-prefix=LLVM
// GNU: Displaying notes found at file offset 0x00000040 with length 0x000000d8:
// GNU: Displaying notes found at file offset 0x00000040 with length 0x000000f8:
// GNU-NEXT: Owner Data size Description
// GNU-NEXT: GNU 0x000000c8 NT_GNU_PROPERTY_TYPE_0 (property note)
// GNU-NEXT: GNU 0x000000e8 NT_GNU_PROPERTY_TYPE_0 (property note)
// GNU-NEXT: Properties: stack size: 0x100
// GNU-NEXT: stack size: 0x100
// GNU-NEXT: no copy on protected
// GNU-NEXT: x86 feature: SHSTK
// GNU-NEXT: x86 feature: IBT, SHSTK
// GNU-NEXT: x86 feature: <None>
// GNU-NEXT: x86 ISA needed: CMOV, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, AVX, AVX2, FMA, AVX512F, AVX512CD
// GNU-NEXT: x86 ISA used: AVX512ER, AVX512PF, AVX512VL, AVX512DQ, AVX512BW, AVX512_4FMAPS, AVX512_4VNNIW, AVX512_BITALG, AVX512_IFMA, AVX512_VBMI, AVX512_VBMI2, AVX512_VNNI
// GNU-NEXT: x86 feature needed: x86, x87
// GNU-NEXT: x86 feature used: XSAVEOPT, XSAVEC
// GNU-NEXT: <application-specific type 0xfefefefe>
@ -25,10 +27,10 @@
// LLVM: Notes [
// LLVM-NEXT: NoteSection {
// LLVM-NEXT: Offset: 0x40
// LLVM-NEXT: Size: 0xD8
// LLVM-NEXT: Size: 0xF8
// LLVM-NEXT: Note {
// LLVM-NEXT: Owner: GNU
// LLVM-NEXT: Data size: 0xC8
// LLVM-NEXT: Data size: 0xE8
// LLVM-NEXT: Type: NT_GNU_PROPERTY_TYPE_0 (property note)
// LLVM-NEXT: Property [
// LLVM-NEXT: stack size: 0x100
@ -37,6 +39,8 @@
// LLVM-NEXT: x86 feature: SHSTK
// LLVM-NEXT: x86 feature: IBT, SHSTK
// LLVM-NEXT: x86 feature: <None>
// LLVM-NEXT: x86 ISA needed: CMOV, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, AVX, AVX2, FMA, AVX512F, AVX512CD
// LLVM-NEXT: x86 ISA used: AVX512ER, AVX512PF, AVX512VL, AVX512DQ, AVX512BW, AVX512_4FMAPS, AVX512_4VNNIW, AVX512_BITALG, AVX512_IFMA, AVX512_VBMI, AVX512_VBMI2, AVX512_VNNI
// LLVM-NEXT: x86 feature needed: x86, x87
// LLVM-NEXT: x86 feature used: XSAVEOPT, XSAVEC
// LLVM-NEXT: <application-specific type 0xfefefefe>
@ -91,6 +95,16 @@ begin:
.long 0 /* Empty flags, not an error */
.p2align 3 /* Align to 8 byte for 64 bit */
.long 0xc0008000 /* Type: GNU_PROPERTY_X86_ISA_1_NEEDED */
.long 4 /* Data size */
.long 0x00000fff /* CMOV, ... */
.p2align 3 /* Align to 8 byte for 64 bit */
.long 0xc0010000 /* Type: GNU_PROPERTY_X86_ISA_1_USED */
.long 4 /* Data size */
.long 0x00fff000 /* AVX512_ER, ... */
.p2align 3 /* Align to 8 byte for 64 bit */
.long 0xc0008001 /* Type: GNU_PROPERTY_X86_FEATURE_2_NEEDED */
.long 4 /* Data size */
.long 0x00000003 /* X86 X87 */

41
llvm/tools/llvm-readobj/ELFDumper.cpp
View File

@ -3694,6 +3694,47 @@ static std::string getGNUProperty(uint32_t Type, uint32_t DataSize,
if (PrData)
OS << format("<unknown flags: 0x%x>", PrData);
return OS.str();
case GNU_PROPERTY_X86_ISA_1_NEEDED:
case GNU_PROPERTY_X86_ISA_1_USED:
OS << "x86 ISA "
<< (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: ");
if (DataSize != 4) {
OS << format("<corrupt length: 0x%x>", DataSize);
return OS.str();
}
PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
if (PrData == 0) {
OS << "<None>";
return OS.str();
}
DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV");
DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE");
DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2");
DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3");
DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3");
DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1");
DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2");
DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2");
DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI");
if (PrData)
OS << format("<unknown flags: 0x%x>", PrData);
return OS.str();
break;
case GNU_PROPERTY_X86_FEATURE_2_NEEDED:
case GNU_PROPERTY_X86_FEATURE_2_USED:
OS << "x86 feature "