[lld] 8ca3669 - Revert "[lld-macho] Add support for arm64_32" and other stacked diffs
Jez Ng via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 13 09:41:05 PDT 2021
Author: Jez Ng
Date: 2021-04-13T12:40:58-04:00
New Revision: 8ca366935b055283b571ba0893f53a7a18ac59bb
URL: https://github.com/llvm/llvm-project/commit/8ca366935b055283b571ba0893f53a7a18ac59bb
DIFF: https://github.com/llvm/llvm-project/commit/8ca366935b055283b571ba0893f53a7a18ac59bb.diff
LOG: Revert "[lld-macho] Add support for arm64_32" and other stacked diffs
This reverts commits:
* 8914902b01a3f8bdea9c71a0d9d23e4ee0ae80e4
* 35a745d814e1cde3de25d0d959fddc31e1061a41
* 682d1dfe09436857aa3b64365b5cc6fcbf1f043b
Added:
Modified:
lld/MachO/Arch/ARM64.cpp
lld/MachO/CMakeLists.txt
lld/MachO/Driver.cpp
lld/MachO/MachOStructs.h
lld/MachO/Relocations.h
lld/MachO/SyntheticSections.h
lld/MachO/Target.h
lld/MachO/UnwindInfoSection.cpp
lld/MachO/UnwindInfoSection.h
lld/MachO/Writer.cpp
lld/test/MachO/compact-unwind.s
lld/test/MachO/header.s
lld/test/MachO/lit.local.cfg
lld/test/MachO/segments.s
Removed:
lld/MachO/Arch/ARM64Common.cpp
lld/MachO/Arch/ARM64Common.h
lld/MachO/Arch/ARM64_32.cpp
lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libSystem.tbd
lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++.tbd
lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++abi.tbd
lld/test/MachO/arm64-32-reloc-got-load.s
lld/test/MachO/arm64-32-stubs.s
################################################################################
diff --git a/lld/MachO/Arch/ARM64.cpp b/lld/MachO/Arch/ARM64.cpp
index a5953637b7f7b..f0d0b308c3edf 100644
--- a/lld/MachO/Arch/ARM64.cpp
+++ b/lld/MachO/Arch/ARM64.cpp
@@ -6,7 +6,6 @@
//
//===----------------------------------------------------------------------===//
-#include "Arch/ARM64Common.h"
#include "InputFiles.h"
#include "Symbols.h"
#include "SyntheticSections.h"
@@ -26,13 +25,22 @@ using namespace lld::macho;
namespace {
-struct ARM64 : ARM64Common {
+struct ARM64 : TargetInfo {
ARM64();
+
+ int64_t getEmbeddedAddend(MemoryBufferRef, uint64_t offset,
+ const relocation_info) const override;
+ void relocateOne(uint8_t *loc, const Reloc &, uint64_t va,
+ uint64_t pc) const override;
+
void writeStub(uint8_t *buf, const Symbol &) const override;
void writeStubHelperHeader(uint8_t *buf) const override;
void writeStubHelperEntry(uint8_t *buf, const DylibSymbol &,
uint64_t entryAddr) const override;
+
+ void relaxGotLoad(uint8_t *loc, uint8_t type) const override;
const RelocAttrs &getRelocAttrs(uint8_t type) const override;
+ uint64_t getPageSize() const override { return 16 * 1024; }
};
} // namespace
@@ -69,6 +77,140 @@ const RelocAttrs &ARM64::getRelocAttrs(uint8_t type) const {
return relocAttrsArray[type];
}
+int64_t ARM64::getEmbeddedAddend(MemoryBufferRef mb, uint64_t offset,
+ const relocation_info rel) const {
+ if (rel.r_type != ARM64_RELOC_UNSIGNED &&
+ rel.r_type != ARM64_RELOC_SUBTRACTOR) {
+ // All other reloc types should use the ADDEND relocation to store their
+ // addends.
+ // TODO(gkm): extract embedded addend just so we can assert that it is 0
+ return 0;
+ }
+
+ auto *buf = reinterpret_cast<const uint8_t *>(mb.getBufferStart());
+ const uint8_t *loc = buf + offset + rel.r_address;
+ switch (rel.r_length) {
+ case 2:
+ return static_cast<int32_t>(read32le(loc));
+ case 3:
+ return read64le(loc);
+ default:
+ llvm_unreachable("invalid r_length");
+ }
+}
+
+inline uint64_t bitField(uint64_t value, int right, int width, int left) {
+ return ((value >> right) & ((1 << width) - 1)) << left;
+}
+
+// 25 0
+// +-----------+---------------------------------------------------+
+// | | imm26 |
+// +-----------+---------------------------------------------------+
+
+inline uint64_t encodeBranch26(const Reloc &r, uint64_t base, uint64_t va) {
+ checkInt(r, va, 28);
+ // Since branch destinations are 4-byte aligned, the 2 least-
+ // significant bits are 0. They are right shifted off the end.
+ return (base | bitField(va, 2, 26, 0));
+}
+
+inline uint64_t encodeBranch26(SymbolDiagnostic d, uint64_t base, uint64_t va) {
+ checkInt(d, va, 28);
+ return (base | bitField(va, 2, 26, 0));
+}
+
+// 30 29 23 5
+// +-+---+---------+-------------------------------------+---------+
+// | |ilo| | immhi | |
+// +-+---+---------+-------------------------------------+---------+
+
+inline uint64_t encodePage21(const Reloc &r, uint64_t base, uint64_t va) {
+ checkInt(r, va, 35);
+ return (base | bitField(va, 12, 2, 29) | bitField(va, 14, 19, 5));
+}
+
+inline uint64_t encodePage21(SymbolDiagnostic d, uint64_t base, uint64_t va) {
+ checkInt(d, va, 35);
+ return (base | bitField(va, 12, 2, 29) | bitField(va, 14, 19, 5));
+}
+
+// 21 10
+// +-------------------+-----------------------+-------------------+
+// | | imm12 | |
+// +-------------------+-----------------------+-------------------+
+
+inline uint64_t encodePageOff12(uint32_t base, uint64_t va) {
+ int scale = 0;
+ if ((base & 0x3b00'0000) == 0x3900'0000) { // load/store
+ scale = base >> 30;
+ if (scale == 0 && (base & 0x0480'0000) == 0x0480'0000) // 128-bit variant
+ scale = 4;
+ }
+
+ // TODO(gkm): extract embedded addend and warn if != 0
+ // uint64_t addend = ((base & 0x003FFC00) >> 10);
+ return (base | bitField(va, scale, 12 - scale, 10));
+}
+
+inline uint64_t pageBits(uint64_t address) {
+ const uint64_t pageMask = ~0xfffull;
+ return address & pageMask;
+}
+
+// For instruction relocations (load, store, add), the base
+// instruction is pre-populated in the text section. A pre-populated
+// instruction has opcode & register-operand bits set, with immediate
+// operands zeroed. We read it from text, OR-in the immediate
+// operands, then write-back the completed instruction.
+
+void ARM64::relocateOne(uint8_t *loc, const Reloc &r, uint64_t value,
+ uint64_t pc) const {
+ uint32_t base = ((r.length == 2) ? read32le(loc) : 0);
+ value += r.addend;
+ switch (r.type) {
+ case ARM64_RELOC_BRANCH26:
+ value = encodeBranch26(r, base, value - pc);
+ break;
+ case ARM64_RELOC_SUBTRACTOR:
+ case ARM64_RELOC_UNSIGNED:
+ if (r.length == 2)
+ checkInt(r, value, 32);
+ break;
+ case ARM64_RELOC_POINTER_TO_GOT:
+ if (r.pcrel)
+ value -= pc;
+ checkInt(r, value, 32);
+ break;
+ case ARM64_RELOC_PAGE21:
+ case ARM64_RELOC_GOT_LOAD_PAGE21:
+ case ARM64_RELOC_TLVP_LOAD_PAGE21: {
+ assert(r.pcrel);
+ value = encodePage21(r, base, pageBits(value) - pageBits(pc));
+ break;
+ }
+ case ARM64_RELOC_PAGEOFF12:
+ case ARM64_RELOC_GOT_LOAD_PAGEOFF12:
+ case ARM64_RELOC_TLVP_LOAD_PAGEOFF12:
+ assert(!r.pcrel);
+ value = encodePageOff12(base, value);
+ break;
+ default:
+ llvm_unreachable("unexpected relocation type");
+ }
+
+ switch (r.length) {
+ case 2:
+ write32le(loc, value);
+ break;
+ case 3:
+ write64le(loc, value);
+ break;
+ default:
+ llvm_unreachable("invalid r_length");
+ }
+}
+
static constexpr uint32_t stubCode[] = {
0x90000010, // 00: adrp x16, __la_symbol_ptr at page
0xf9400210, // 04: ldr x16, [x16, __la_symbol_ptr at pageoff]
@@ -76,7 +218,15 @@ static constexpr uint32_t stubCode[] = {
};
void ARM64::writeStub(uint8_t *buf8, const Symbol &sym) const {
- ::writeStub<LP64, stubCode>(buf8, sym);
+ auto *buf32 = reinterpret_cast<uint32_t *>(buf8);
+ uint64_t pcPageBits =
+ pageBits(in.stubs->addr + sym.stubsIndex * sizeof(stubCode));
+ uint64_t lazyPointerVA =
+ in.lazyPointers->addr + sym.stubsIndex * LP64::wordSize;
+ buf32[0] = encodePage21({&sym, "stub"}, stubCode[0],
+ pageBits(lazyPointerVA) - pcPageBits);
+ buf32[1] = encodePageOff12(stubCode[1], lazyPointerVA);
+ buf32[2] = stubCode[2];
}
static constexpr uint32_t stubHelperHeaderCode[] = {
@@ -89,7 +239,22 @@ static constexpr uint32_t stubHelperHeaderCode[] = {
};
void ARM64::writeStubHelperHeader(uint8_t *buf8) const {
- ::writeStubHelperHeader<LP64, stubHelperHeaderCode>(buf8);
+ auto *buf32 = reinterpret_cast<uint32_t *>(buf8);
+ auto pcPageBits = [](int i) {
+ return pageBits(in.stubHelper->addr + i * sizeof(uint32_t));
+ };
+ uint64_t loaderVA = in.imageLoaderCache->getVA();
+ SymbolDiagnostic d = {nullptr, "stub header helper"};
+ buf32[0] = encodePage21(d, stubHelperHeaderCode[0],
+ pageBits(loaderVA) - pcPageBits(0));
+ buf32[1] = encodePageOff12(stubHelperHeaderCode[1], loaderVA);
+ buf32[2] = stubHelperHeaderCode[2];
+ uint64_t binderVA =
+ in.got->addr + in.stubHelper->stubBinder->gotIndex * LP64::wordSize;
+ buf32[3] = encodePage21(d, stubHelperHeaderCode[3],
+ pageBits(binderVA) - pcPageBits(3));
+ buf32[4] = encodePageOff12(stubHelperHeaderCode[4], binderVA);
+ buf32[5] = stubHelperHeaderCode[5];
}
static constexpr uint32_t stubHelperEntryCode[] = {
@@ -100,10 +265,34 @@ static constexpr uint32_t stubHelperEntryCode[] = {
void ARM64::writeStubHelperEntry(uint8_t *buf8, const DylibSymbol &sym,
uint64_t entryVA) const {
- ::writeStubHelperEntry<stubHelperEntryCode>(buf8, sym, entryVA);
+ auto *buf32 = reinterpret_cast<uint32_t *>(buf8);
+ auto pcVA = [entryVA](int i) { return entryVA + i * sizeof(uint32_t); };
+ uint64_t stubHelperHeaderVA = in.stubHelper->addr;
+ buf32[0] = stubHelperEntryCode[0];
+ buf32[1] = encodeBranch26({&sym, "stub helper"}, stubHelperEntryCode[1],
+ stubHelperHeaderVA - pcVA(1));
+ buf32[2] = sym.lazyBindOffset;
+}
+
+void ARM64::relaxGotLoad(uint8_t *loc, uint8_t type) const {
+ // The instruction format comments below are quoted from
+ // Arm® Architecture Reference Manual
+ // Armv8, for Armv8-A architecture profile
+ // ARM DDI 0487G.a (ID011921)
+ uint32_t instruction = read32le(loc);
+ // C6.2.132 LDR (immediate)
+ // LDR <Xt>, [<Xn|SP>{, #<pimm>}]
+ if ((instruction & 0xffc00000) != 0xf9400000)
+ error(getRelocAttrs(type).name + " reloc requires LDR instruction");
+ assert(((instruction >> 10) & 0xfff) == 0 &&
+ "non-zero embedded LDR immediate");
+ // C6.2.4 ADD (immediate)
+ // ADD <Xd|SP>, <Xn|SP>, #<imm>{, <shift>}
+ instruction = ((instruction & 0x001fffff) | 0x91000000);
+ write32le(loc, instruction);
}
-ARM64::ARM64() : ARM64Common(LP64()) {
+ARM64::ARM64() : TargetInfo(LP64()) {
cpuType = CPU_TYPE_ARM64;
cpuSubtype = CPU_SUBTYPE_ARM64_ALL;
diff --git a/lld/MachO/Arch/ARM64Common.cpp b/lld/MachO/Arch/ARM64Common.cpp
deleted file mode 100644
index 88e7286d14503..0000000000000
--- a/lld/MachO/Arch/ARM64Common.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-//===- ARM64Common.cpp ----------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "Arch/ARM64Common.h"
-
-#include "lld/Common/ErrorHandler.h"
-#include "llvm/Support/Endian.h"
-
-using namespace llvm::MachO;
-using namespace llvm::support::endian;
-using namespace lld;
-using namespace lld::macho;
-
-int64_t ARM64Common::getEmbeddedAddend(MemoryBufferRef mb, uint64_t offset,
- const relocation_info rel) const {
- if (rel.r_type != ARM64_RELOC_UNSIGNED &&
- rel.r_type != ARM64_RELOC_SUBTRACTOR) {
- // All other reloc types should use the ADDEND relocation to store their
- // addends.
- // TODO(gkm): extract embedded addend just so we can assert that it is 0
- return 0;
- }
-
- const auto *buf = reinterpret_cast<const uint8_t *>(mb.getBufferStart());
- const uint8_t *loc = buf + offset + rel.r_address;
- switch (rel.r_length) {
- case 2:
- return static_cast<int32_t>(read32le(loc));
- case 3:
- return read64le(loc);
- default:
- llvm_unreachable("invalid r_length");
- }
-}
-
-// For instruction relocations (load, store, add), the base
-// instruction is pre-populated in the text section. A pre-populated
-// instruction has opcode & register-operand bits set, with immediate
-// operands zeroed. We read it from text, OR-in the immediate
-// operands, then write-back the completed instruction.
-
-void ARM64Common::relocateOne(uint8_t *loc, const Reloc &r, uint64_t value,
- uint64_t pc) const {
- uint32_t base = ((r.length == 2) ? read32le(loc) : 0);
- value += r.addend;
- switch (r.type) {
- case ARM64_RELOC_BRANCH26:
- value = encodeBranch26(r, base, value - pc);
- break;
- case ARM64_RELOC_SUBTRACTOR:
- case ARM64_RELOC_UNSIGNED:
- if (r.length == 2)
- checkInt(r, value, 32);
- break;
- case ARM64_RELOC_POINTER_TO_GOT:
- if (r.pcrel)
- value -= pc;
- checkInt(r, value, 32);
- break;
- case ARM64_RELOC_PAGE21:
- case ARM64_RELOC_GOT_LOAD_PAGE21:
- case ARM64_RELOC_TLVP_LOAD_PAGE21: {
- assert(r.pcrel);
- value = encodePage21(r, base, pageBits(value) - pageBits(pc));
- break;
- }
- case ARM64_RELOC_PAGEOFF12:
- case ARM64_RELOC_GOT_LOAD_PAGEOFF12:
- case ARM64_RELOC_TLVP_LOAD_PAGEOFF12:
- assert(!r.pcrel);
- value = encodePageOff12(base, value);
- break;
- default:
- llvm_unreachable("unexpected relocation type");
- }
-
- switch (r.length) {
- case 2:
- write32le(loc, value);
- break;
- case 3:
- write64le(loc, value);
- break;
- default:
- llvm_unreachable("invalid r_length");
- }
-}
-
-void ARM64Common::relaxGotLoad(uint8_t *loc, uint8_t type) const {
- // The instruction format comments below are quoted from
- // Arm® Architecture Reference Manual
- // Armv8, for Armv8-A architecture profile
- // ARM DDI 0487G.a (ID011921)
- uint32_t instruction = read32le(loc);
- // C6.2.132 LDR (immediate)
- // This matches both the 64- and 32-bit variants:
- // LDR <(X|W)t>, [<Xn|SP>{, #<pimm>}]
- if ((instruction & 0xbfc00000) != 0xb9400000)
- error(getRelocAttrs(type).name + " reloc requires LDR instruction");
- assert(((instruction >> 10) & 0xfff) == 0 &&
- "non-zero embedded LDR immediate");
- // C6.2.4 ADD (immediate)
- // ADD <Xd|SP>, <Xn|SP>, #<imm>{, <shift>}
- instruction = ((instruction & 0x001fffff) | 0x91000000);
- write32le(loc, instruction);
-}
diff --git a/lld/MachO/Arch/ARM64Common.h b/lld/MachO/Arch/ARM64Common.h
deleted file mode 100644
index 1e858f6748c79..0000000000000
--- a/lld/MachO/Arch/ARM64Common.h
+++ /dev/null
@@ -1,141 +0,0 @@
-//===- ARM64Common.h --------------------------------------------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLD_MACHO_ARCH_ARM64COMMON_H
-#define LLD_MACHO_ARCH_ARM64COMMON_H
-
-#include "InputFiles.h"
-#include "Symbols.h"
-#include "SyntheticSections.h"
-#include "Target.h"
-
-#include "llvm/BinaryFormat/MachO.h"
-
-namespace lld {
-namespace macho {
-
-struct ARM64Common : TargetInfo {
- template <class LP> ARM64Common(LP lp) : TargetInfo(lp) {}
-
- int64_t getEmbeddedAddend(MemoryBufferRef, uint64_t offset,
- const llvm::MachO::relocation_info) const override;
- void relocateOne(uint8_t *loc, const Reloc &, uint64_t va,
- uint64_t pc) const override;
-
- void relaxGotLoad(uint8_t *loc, uint8_t type) const override;
- uint64_t getPageSize() const override { return 16 * 1024; }
-};
-
-inline uint64_t bitField(uint64_t value, int right, int width, int left) {
- return ((value >> right) & ((1 << width) - 1)) << left;
-}
-
-// 25 0
-// +-----------+---------------------------------------------------+
-// | | imm26 |
-// +-----------+---------------------------------------------------+
-
-inline uint64_t encodeBranch26(const Reloc &r, uint64_t base, uint64_t va) {
- checkInt(r, va, 28);
- // Since branch destinations are 4-byte aligned, the 2 least-
- // significant bits are 0. They are right shifted off the end.
- return (base | bitField(va, 2, 26, 0));
-}
-
-inline uint64_t encodeBranch26(SymbolDiagnostic d, uint64_t base, uint64_t va) {
- checkInt(d, va, 28);
- return (base | bitField(va, 2, 26, 0));
-}
-
-// 30 29 23 5
-// +-+---+---------+-------------------------------------+---------+
-// | |ilo| | immhi | |
-// +-+---+---------+-------------------------------------+---------+
-
-inline uint64_t encodePage21(const Reloc &r, uint64_t base, uint64_t va) {
- checkInt(r, va, 35);
- return (base | bitField(va, 12, 2, 29) | bitField(va, 14, 19, 5));
-}
-
-inline uint64_t encodePage21(SymbolDiagnostic d, uint64_t base, uint64_t va) {
- checkInt(d, va, 35);
- return (base | bitField(va, 12, 2, 29) | bitField(va, 14, 19, 5));
-}
-
-// 21 10
-// +-------------------+-----------------------+-------------------+
-// | | imm12 | |
-// +-------------------+-----------------------+-------------------+
-
-inline uint64_t encodePageOff12(uint32_t base, uint64_t va) {
- int scale = 0;
- if ((base & 0x3b00'0000) == 0x3900'0000) { // load/store
- scale = base >> 30;
- if (scale == 0 && (base & 0x0480'0000) == 0x0480'0000) // 128-bit variant
- scale = 4;
- }
-
- // TODO(gkm): extract embedded addend and warn if != 0
- // uint64_t addend = ((base & 0x003FFC00) >> 10);
- return (base | bitField(va, scale, 12 - scale, 10));
-}
-
-inline uint64_t pageBits(uint64_t address) {
- const uint64_t pageMask = ~0xfffull;
- return address & pageMask;
-}
-
-template <class LP, const uint32_t stubCode[3]>
-inline void writeStub(uint8_t *buf8, const macho::Symbol &sym) {
- auto *buf32 = reinterpret_cast<uint32_t *>(buf8);
- uint64_t pcPageBits =
- pageBits(in.stubs->addr + sym.stubsIndex * sizeof(stubCode));
- uint64_t lazyPointerVA =
- in.lazyPointers->addr + sym.stubsIndex * LP::wordSize;
- buf32[0] = encodePage21({&sym, "stub"}, stubCode[0],
- pageBits(lazyPointerVA) - pcPageBits);
- buf32[1] = encodePageOff12(stubCode[1], lazyPointerVA);
- buf32[2] = stubCode[2];
-}
-
-template <class LP, const uint32_t stubHelperHeaderCode[6]>
-inline void writeStubHelperHeader(uint8_t *buf8) {
- auto *buf32 = reinterpret_cast<uint32_t *>(buf8);
- auto pcPageBits = [](int i) {
- return pageBits(in.stubHelper->addr + i * sizeof(uint32_t));
- };
- uint64_t loaderVA = in.imageLoaderCache->getVA();
- SymbolDiagnostic d = {nullptr, "stub header helper"};
- buf32[0] = encodePage21(d, stubHelperHeaderCode[0],
- pageBits(loaderVA) - pcPageBits(0));
- buf32[1] = encodePageOff12(stubHelperHeaderCode[1], loaderVA);
- buf32[2] = stubHelperHeaderCode[2];
- uint64_t binderVA =
- in.got->addr + in.stubHelper->stubBinder->gotIndex * LP::wordSize;
- buf32[3] = encodePage21(d, stubHelperHeaderCode[3],
- pageBits(binderVA) - pcPageBits(3));
- buf32[4] = encodePageOff12(stubHelperHeaderCode[4], binderVA);
- buf32[5] = stubHelperHeaderCode[5];
-}
-
-template <const uint32_t stubHelperEntryCode[3]>
-void writeStubHelperEntry(uint8_t *buf8, const DylibSymbol &sym,
- uint64_t entryVA) {
- auto *buf32 = reinterpret_cast<uint32_t *>(buf8);
- auto pcVA = [entryVA](int i) { return entryVA + i * sizeof(uint32_t); };
- uint64_t stubHelperHeaderVA = in.stubHelper->addr;
- buf32[0] = stubHelperEntryCode[0];
- buf32[1] = encodeBranch26({&sym, "stub helper"}, stubHelperEntryCode[1],
- stubHelperHeaderVA - pcVA(1));
- buf32[2] = sym.lazyBindOffset;
-}
-
-} // namespace macho
-} // namespace lld
-
-#endif
diff --git a/lld/MachO/Arch/ARM64_32.cpp b/lld/MachO/Arch/ARM64_32.cpp
deleted file mode 100644
index f0d39c5b1a822..0000000000000
--- a/lld/MachO/Arch/ARM64_32.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//===- ARM64_32.cpp
-//----------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "Arch/ARM64Common.h"
-#include "InputFiles.h"
-#include "Symbols.h"
-#include "SyntheticSections.h"
-#include "Target.h"
-
-#include "lld/Common/ErrorHandler.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/BinaryFormat/MachO.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/MathExtras.h"
-
-using namespace llvm::MachO;
-using namespace llvm::support::endian;
-using namespace lld;
-using namespace lld::macho;
-
-namespace {
-
-struct ARM64_32 : ARM64Common {
- ARM64_32();
- void writeStub(uint8_t *buf, const Symbol &) const override;
- void writeStubHelperHeader(uint8_t *buf) const override;
- void writeStubHelperEntry(uint8_t *buf, const DylibSymbol &,
- uint64_t entryAddr) const override;
- const RelocAttrs &getRelocAttrs(uint8_t type) const override;
-};
-
-} // namespace
-
-// These are very similar to ARM64's relocation attributes, except that we don't
-// have the BYTE8 flag set.
-const RelocAttrs &ARM64_32::getRelocAttrs(uint8_t type) const {
- static const std::array<RelocAttrs, 11> relocAttrsArray{{
-#define B(x) RelocAttrBits::x
- {"UNSIGNED", B(UNSIGNED) | B(ABSOLUTE) | B(EXTERN) | B(LOCAL) | B(BYTE4)},
- {"SUBTRACTOR", B(SUBTRAHEND) | B(BYTE4)},
- {"BRANCH26", B(PCREL) | B(EXTERN) | B(BRANCH) | B(BYTE4)},
- {"PAGE21", B(PCREL) | B(EXTERN) | B(BYTE4)},
- {"PAGEOFF12", B(ABSOLUTE) | B(EXTERN) | B(BYTE4)},
- {"GOT_LOAD_PAGE21", B(PCREL) | B(EXTERN) | B(GOT) | B(BYTE4)},
- {"GOT_LOAD_PAGEOFF12",
- B(ABSOLUTE) | B(EXTERN) | B(GOT) | B(LOAD) | B(BYTE4)},
- {"POINTER_TO_GOT", B(PCREL) | B(EXTERN) | B(GOT) | B(POINTER) | B(BYTE4)},
- {"TLVP_LOAD_PAGE21", B(PCREL) | B(EXTERN) | B(TLV) | B(BYTE4)},
- {"TLVP_LOAD_PAGEOFF12",
- B(ABSOLUTE) | B(EXTERN) | B(TLV) | B(LOAD) | B(BYTE4)},
- {"ADDEND", B(ADDEND)},
-#undef B
- }};
- assert(type < relocAttrsArray.size() && "invalid relocation type");
- if (type >= relocAttrsArray.size())
- return invalidRelocAttrs;
- return relocAttrsArray[type];
-}
-
-// The stub code is fairly similar to ARM64's, except that we load pointers into
-// 32-bit 'w' registers, instead of the 64-bit 'x' ones.
-
-static constexpr uint32_t stubCode[] = {
- 0x90000010, // 00: adrp x16, __la_symbol_ptr at page
- 0xb9400210, // 04: ldr w16, [x16, __la_symbol_ptr at pageoff]
- 0xd61f0200, // 08: br x16
-};
-
-void ARM64_32::writeStub(uint8_t *buf8, const Symbol &sym) const {
- ::writeStub<ILP32, stubCode>(buf8, sym);
-}
-
-static constexpr uint32_t stubHelperHeaderCode[] = {
- 0x90000011, // 00: adrp x17, _dyld_private at page
- 0x91000231, // 04: add x17, x17, _dyld_private at pageoff
- 0xa9bf47f0, // 08: stp x16/x17, [sp, #-16]!
- 0x90000010, // 0c: adrp x16, dyld_stub_binder at page
- 0xb9400210, // 10: ldr w16, [x16, dyld_stub_binder at pageoff]
- 0xd61f0200, // 14: br x16
-};
-
-void ARM64_32::writeStubHelperHeader(uint8_t *buf8) const {
- ::writeStubHelperHeader<ILP32, stubHelperHeaderCode>(buf8);
-}
-
-static constexpr uint32_t stubHelperEntryCode[] = {
- 0x18000050, // 00: ldr w16, l0
- 0x14000000, // 04: b stubHelperHeader
- 0x00000000, // 08: l0: .long 0
-};
-
-void ARM64_32::writeStubHelperEntry(uint8_t *buf8, const DylibSymbol &sym,
- uint64_t entryVA) const {
- ::writeStubHelperEntry<stubHelperEntryCode>(buf8, sym, entryVA);
-}
-
-ARM64_32::ARM64_32() : ARM64Common(ILP32()) {
- cpuType = CPU_TYPE_ARM64_32;
- cpuSubtype = CPU_SUBTYPE_ARM64_V8;
-
- stubSize = sizeof(stubCode);
- stubHelperHeaderSize = sizeof(stubHelperHeaderCode);
- stubHelperEntrySize = sizeof(stubHelperEntryCode);
-}
-
-TargetInfo *macho::createARM64_32TargetInfo() {
- static ARM64_32 t;
- return &t;
-}
diff --git a/lld/MachO/CMakeLists.txt b/lld/MachO/CMakeLists.txt
index 1cff068e8081f..16b372945d075 100644
--- a/lld/MachO/CMakeLists.txt
+++ b/lld/MachO/CMakeLists.txt
@@ -7,8 +7,6 @@ include_directories(${LLVM_MAIN_SRC_DIR}/../libunwind/include)
add_lld_library(lldMachO2
Arch/X86_64.cpp
Arch/ARM64.cpp
- Arch/ARM64Common.cpp
- Arch/ARM64_32.cpp
UnwindInfoSection.cpp
Driver.cpp
DriverUtils.cpp
diff --git a/lld/MachO/Driver.cpp b/lld/MachO/Driver.cpp
index 0d4768f99964f..ec20bdc92419a 100644
--- a/lld/MachO/Driver.cpp
+++ b/lld/MachO/Driver.cpp
@@ -604,8 +604,6 @@ static TargetInfo *createTargetInfo(InputArgList &args) {
return createX86_64TargetInfo();
case CPU_TYPE_ARM64:
return createARM64TargetInfo();
- case CPU_TYPE_ARM64_32:
- return createARM64_32TargetInfo();
default:
fatal("missing or unsupported -arch " + archName);
}
diff --git a/lld/MachO/MachOStructs.h b/lld/MachO/MachOStructs.h
index 44715bf29dacc..6d9cc49a22e4a 100644
--- a/lld/MachO/MachOStructs.h
+++ b/lld/MachO/MachOStructs.h
@@ -37,13 +37,6 @@ struct nlist {
llvm::support::ulittle32_t n_value;
};
-struct entry_point_command {
- llvm::support::ulittle32_t cmd;
- llvm::support::ulittle32_t cmdsize;
- llvm::support::ulittle64_t entryoff;
- llvm::support::ulittle64_t stacksize;
-};
-
} // namespace structs
} // namespace lld
diff --git a/lld/MachO/Relocations.h b/lld/MachO/Relocations.h
index 91b2d00f26a18..6d31d27ec8321 100644
--- a/lld/MachO/Relocations.h
+++ b/lld/MachO/Relocations.h
@@ -12,7 +12,6 @@
#include "llvm/ADT/BitmaskEnum.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/BinaryFormat/MachO.h"
-#include "llvm/Support/Endian.h"
#include <cstddef>
#include <cstdint>
@@ -94,19 +93,6 @@ inline void checkUInt(Diagnostic d, uint64_t v, int bits) {
reportRangeError(d, llvm::Twine(v), bits, 0, llvm::maxUIntN(bits));
}
-inline void writeAddress(uint8_t *loc, uint64_t addr, uint8_t length) {
- switch (length) {
- case 2:
- llvm::support::endian::write32le(loc, addr);
- break;
- case 3:
- llvm::support::endian::write64le(loc, addr);
- break;
- default:
- llvm_unreachable("invalid r_length");
- }
-}
-
extern const RelocAttrs invalidRelocAttrs;
} // namespace macho
diff --git a/lld/MachO/SyntheticSections.h b/lld/MachO/SyntheticSections.h
index 38d966e618255..eaad8aa3455ff 100644
--- a/lld/MachO/SyntheticSections.h
+++ b/lld/MachO/SyntheticSections.h
@@ -32,7 +32,6 @@ class Defined;
class DylibSymbol;
class LoadCommand;
class ObjFile;
-class UnwindInfoSection;
class SyntheticSection : public OutputSection {
public:
@@ -504,7 +503,6 @@ struct InStruct {
StubsSection *stubs = nullptr;
StubHelperSection *stubHelper = nullptr;
ImageLoaderCacheSection *imageLoaderCache = nullptr;
- UnwindInfoSection *unwindInfo = nullptr;
};
extern InStruct in;
diff --git a/lld/MachO/Target.h b/lld/MachO/Target.h
index c9747e9b62f23..ac9c556598937 100644
--- a/lld/MachO/Target.h
+++ b/lld/MachO/Target.h
@@ -79,7 +79,6 @@ class TargetInfo {
TargetInfo *createX86_64TargetInfo();
TargetInfo *createARM64TargetInfo();
-TargetInfo *createARM64_32TargetInfo();
struct LP64 {
using mach_header = llvm::MachO::mach_header_64;
diff --git a/lld/MachO/UnwindInfoSection.cpp b/lld/MachO/UnwindInfoSection.cpp
index b946424040911..52abdc6b04000 100644
--- a/lld/MachO/UnwindInfoSection.cpp
+++ b/lld/MachO/UnwindInfoSection.cpp
@@ -91,62 +91,31 @@ using namespace lld::macho;
// TODO(gkm): prune __eh_frame entries superseded by __unwind_info
// TODO(gkm): how do we align the 2nd-level pages?
-using EncodingMap = llvm::DenseMap<compact_unwind_encoding_t, size_t>;
-
-template <class Ptr> struct CompactUnwindEntry {
- Ptr functionAddress;
- uint32_t functionLength;
- compact_unwind_encoding_t encoding;
- Ptr personality;
- Ptr lsda;
-};
-
-struct SecondLevelPage {
- uint32_t kind;
- size_t entryIndex;
- size_t entryCount;
- size_t byteCount;
- std::vector<compact_unwind_encoding_t> localEncodings;
- EncodingMap localEncodingIndexes;
-};
-
-template <class Ptr> class UnwindInfoSectionImpl : public UnwindInfoSection {
-public:
- void prepareRelocations(InputSection *) override;
- void finalize() override;
- void writeTo(uint8_t *buf) const override;
-
-private:
- std::vector<std::pair<compact_unwind_encoding_t, size_t>> commonEncodings;
- EncodingMap commonEncodingIndexes;
- // Indices of personality functions within the GOT.
- std::vector<uint32_t> personalities;
- SmallDenseMap<std::pair<InputSection *, uint64_t /* addend */>, Symbol *>
- personalityTable;
- std::vector<unwind_info_section_header_lsda_index_entry> lsdaEntries;
- // Map of function offset (from the image base) to an index within the LSDA
- // array.
- llvm::DenseMap<uint32_t, uint32_t> functionToLsdaIndex;
- std::vector<CompactUnwindEntry<Ptr>> cuVector;
- std::vector<CompactUnwindEntry<Ptr> *> cuPtrVector;
- std::vector<SecondLevelPage> secondLevelPages;
- uint64_t level2PagesOffset = 0;
-};
+UnwindInfoSection::UnwindInfoSection()
+ : SyntheticSection(segment_names::text, section_names::unwindInfo) {
+ align = 4; // mimic ld64
+}
+
+bool UnwindInfoSection::isNeeded() const {
+ return (compactUnwindSection != nullptr);
+}
+
+SmallDenseMap<std::pair<InputSection *, uint64_t /* addend */>, Symbol *>
+ personalityTable;
// Compact unwind relocations have
diff erent semantics, so we handle them in a
// separate code path from regular relocations. First, we do not wish to add
// rebase opcodes for __LD,__compact_unwind, because that section doesn't
// actually end up in the final binary. Second, personality pointers always
// reside in the GOT and must be treated specially.
-template <class Ptr>
-void UnwindInfoSectionImpl<Ptr>::prepareRelocations(InputSection *isec) {
+void macho::prepareCompactUnwind(InputSection *isec) {
assert(isec->segname == segment_names::ld &&
isec->name == section_names::compactUnwind);
for (Reloc &r : isec->relocs) {
assert(target->hasAttr(r.type, RelocAttrBits::UNSIGNED));
- if (r.offset % sizeof(CompactUnwindEntry<Ptr>) !=
- offsetof(CompactUnwindEntry<Ptr>, personality))
+ if (r.offset % sizeof(CompactUnwindEntry64) !=
+ offsetof(struct CompactUnwindEntry64, personality))
continue;
if (auto *s = r.referent.dyn_cast<Symbol *>()) {
@@ -203,10 +172,8 @@ static void checkTextSegment(InputSection *isec) {
// before converting it to post-link form. There should only be absolute
// relocations here: since we are not emitting the pre-link CU section, there
// is no source address to make a relative location meaningful.
-template <class Ptr>
-static void
-relocateCompactUnwind(MergedOutputSection *compactUnwindSection,
- std::vector<CompactUnwindEntry<Ptr>> &cuVector) {
+static void relocateCompactUnwind(MergedOutputSection *compactUnwindSection,
+ std::vector<CompactUnwindEntry64> &cuVector) {
for (const InputSection *isec : compactUnwindSection->inputs) {
uint8_t *buf =
reinterpret_cast<uint8_t *>(cuVector.data()) + isec->outSecFileOff;
@@ -228,23 +195,21 @@ relocateCompactUnwind(MergedOutputSection *compactUnwindSection,
checkTextSegment(referentIsec);
referentVA = referentIsec->getVA() + r.addend;
}
-
- writeAddress(buf + r.offset, referentVA, r.length);
+ support::endian::write64le(buf + r.offset, referentVA);
}
}
}
// There should only be a handful of unique personality pointers, so we can
// encode them as 2-bit indices into a small array.
-template <class Ptr>
-void encodePersonalities(
- const std::vector<CompactUnwindEntry<Ptr> *> &cuPtrVector,
- std::vector<uint32_t> &personalities) {
- for (CompactUnwindEntry<Ptr> *cu : cuPtrVector) {
+void encodePersonalities(const std::vector<CompactUnwindEntry64 *> &cuPtrVector,
+ std::vector<uint32_t> &personalities) {
+ for (CompactUnwindEntry64 *cu : cuPtrVector) {
if (cu->personality == 0)
continue;
+ uint32_t personalityOffset = cu->personality - in.header->addr;
// Linear search is fast enough for a small array.
- auto it = find(personalities, cu->personality);
+ auto it = find(personalities, personalityOffset);
uint32_t personalityIndex; // 1-based index
if (it != personalities.end()) {
personalityIndex = std::distance(personalities.begin(), it) + 1;
@@ -263,7 +228,7 @@ void encodePersonalities(
// Scan the __LD,__compact_unwind entries and compute the space needs of
// __TEXT,__unwind_info and __TEXT,__eh_frame
-template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
+void UnwindInfoSection::finalize() {
if (compactUnwindSection == nullptr)
return;
@@ -275,23 +240,21 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
// encoding+personality+lsda. Folding is necessary because it reduces
// the number of CU entries by as much as 3 orders of magnitude!
compactUnwindSection->finalize();
- assert(compactUnwindSection->getSize() % sizeof(CompactUnwindEntry<Ptr>) ==
- 0);
+ assert(compactUnwindSection->getSize() % sizeof(CompactUnwindEntry64) == 0);
size_t cuCount =
- compactUnwindSection->getSize() / sizeof(CompactUnwindEntry<Ptr>);
+ compactUnwindSection->getSize() / sizeof(CompactUnwindEntry64);
cuVector.resize(cuCount);
relocateCompactUnwind(compactUnwindSection, cuVector);
// Rather than sort & fold the 32-byte entries directly, we create a
// vector of pointers to entries and sort & fold that instead.
cuPtrVector.reserve(cuCount);
- for (CompactUnwindEntry<Ptr> &cuEntry : cuVector)
+ for (CompactUnwindEntry64 &cuEntry : cuVector)
cuPtrVector.emplace_back(&cuEntry);
- std::sort(
- cuPtrVector.begin(), cuPtrVector.end(),
- [](const CompactUnwindEntry<Ptr> *a, const CompactUnwindEntry<Ptr> *b) {
- return a->functionAddress < b->functionAddress;
- });
+ std::sort(cuPtrVector.begin(), cuPtrVector.end(),
+ [](const CompactUnwindEntry64 *a, const CompactUnwindEntry64 *b) {
+ return a->functionAddress < b->functionAddress;
+ });
// Fold adjacent entries with matching encoding+personality+lsda
// We use three iterators on the same cuPtrVector to fold in-situ:
@@ -317,7 +280,7 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
// Count frequencies of the folded encodings
EncodingMap encodingFrequencies;
- for (const CompactUnwindEntry<Ptr> *cuPtrEntry : cuPtrVector)
+ for (const CompactUnwindEntry64 *cuPtrEntry : cuPtrVector)
encodingFrequencies[cuPtrEntry->encoding]++;
// Make a vector of encodings, sorted by descending frequency
@@ -353,7 +316,7 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
// If more entries fit in the regular format, we use that.
for (size_t i = 0; i < cuPtrVector.size();) {
secondLevelPages.emplace_back();
- SecondLevelPage &page = secondLevelPages.back();
+ UnwindInfoSection::SecondLevelPage &page = secondLevelPages.back();
page.entryIndex = i;
uintptr_t functionAddressMax =
cuPtrVector[i]->functionAddress + COMPRESSED_ENTRY_FUNC_OFFSET_MASK;
@@ -363,7 +326,7 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
sizeof(unwind_info_compressed_second_level_page_header) /
sizeof(uint32_t);
while (wordsRemaining >= 1 && i < cuPtrVector.size()) {
- const CompactUnwindEntry<Ptr> *cuPtr = cuPtrVector[i];
+ const CompactUnwindEntry64 *cuPtr = cuPtrVector[i];
if (cuPtr->functionAddress >= functionAddressMax) {
break;
} else if (commonEncodingIndexes.count(cuPtr->encoding) ||
@@ -396,7 +359,7 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
}
}
- for (const CompactUnwindEntry<Ptr> *cu : cuPtrVector) {
+ for (const CompactUnwindEntry64 *cu : cuPtrVector) {
uint32_t functionOffset = cu->functionAddress - in.header->addr;
functionToLsdaIndex[functionOffset] = lsdaEntries.size();
if (cu->lsda != 0)
@@ -419,8 +382,7 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
// All inputs are relocated and output addresses are known, so write!
-template <class Ptr>
-void UnwindInfoSectionImpl<Ptr>::writeTo(uint8_t *buf) const {
+void UnwindInfoSection::writeTo(uint8_t *buf) const {
// section header
auto *uip = reinterpret_cast<unwind_info_section_header *>(buf);
uip->version = 1;
@@ -441,8 +403,7 @@ void UnwindInfoSectionImpl<Ptr>::writeTo(uint8_t *buf) const {
// Personalities
for (const uint32_t &personality : personalities)
- *i32p++ =
- in.got->addr + (personality - 1) * target->wordSize - in.header->addr;
+ *i32p++ = in.got->addr + (personality - 1) * target->wordSize;
// Level-1 index
uint32_t lsdaOffset =
@@ -461,7 +422,7 @@ void UnwindInfoSectionImpl<Ptr>::writeTo(uint8_t *buf) const {
l2PagesOffset += SECOND_LEVEL_PAGE_BYTES;
}
// Level-1 sentinel
- const CompactUnwindEntry<Ptr> &cuEnd = cuVector.back();
+ const CompactUnwindEntry64 &cuEnd = cuVector.back();
iep->functionOffset = cuEnd.functionAddress + cuEnd.functionLength;
iep->secondLevelPagesSectionOffset = 0;
iep->lsdaIndexArraySectionOffset =
@@ -494,7 +455,7 @@ void UnwindInfoSectionImpl<Ptr>::writeTo(uint8_t *buf) const {
p2p->encodingsCount = page.localEncodings.size();
auto *ep = reinterpret_cast<uint32_t *>(&p2p[1]);
for (size_t i = 0; i < page.entryCount; i++) {
- const CompactUnwindEntry<Ptr> *cuep = cuPtrVector[page.entryIndex + i];
+ const CompactUnwindEntry64 *cuep = cuPtrVector[page.entryIndex + i];
auto it = commonEncodingIndexes.find(cuep->encoding);
if (it == commonEncodingIndexes.end())
it = page.localEncodingIndexes.find(cuep->encoding);
@@ -513,7 +474,7 @@ void UnwindInfoSectionImpl<Ptr>::writeTo(uint8_t *buf) const {
p2p->entryCount = page.entryCount;
auto *ep = reinterpret_cast<uint32_t *>(&p2p[1]);
for (size_t i = 0; i < page.entryCount; i++) {
- const CompactUnwindEntry<Ptr> *cuep = cuPtrVector[page.entryIndex + i];
+ const CompactUnwindEntry64 *cuep = cuPtrVector[page.entryIndex + i];
*ep++ = cuep->functionAddress;
*ep++ = cuep->encoding;
}
@@ -521,10 +482,3 @@ void UnwindInfoSectionImpl<Ptr>::writeTo(uint8_t *buf) const {
pp += SECOND_LEVEL_PAGE_WORDS;
}
}
-
-UnwindInfoSection *macho::makeUnwindInfoSection() {
- if (target->wordSize == 8)
- return make<UnwindInfoSectionImpl<uint64_t>>();
- else
- return make<UnwindInfoSectionImpl<uint32_t>>();
-}
diff --git a/lld/MachO/UnwindInfoSection.h b/lld/MachO/UnwindInfoSection.h
index a33cd381a36e2..1368625c291df 100644
--- a/lld/MachO/UnwindInfoSection.h
+++ b/lld/MachO/UnwindInfoSection.h
@@ -17,30 +17,66 @@
#include <vector>
+// In 2020, we mostly care about 64-bit targets: x86_64 and arm64
+struct CompactUnwindEntry64 {
+ uint64_t functionAddress;
+ uint32_t functionLength;
+ compact_unwind_encoding_t encoding;
+ uint64_t personality;
+ uint64_t lsda;
+};
+
+// FIXME(gkm): someday we might care about 32-bit targets: x86 & arm
+struct CompactUnwindEntry32 {
+ uint32_t functionAddress;
+ uint32_t functionLength;
+ compact_unwind_encoding_t encoding;
+ uint32_t personality;
+ uint32_t lsda;
+};
+
namespace lld {
namespace macho {
class UnwindInfoSection : public SyntheticSection {
public:
- bool isNeeded() const override { return compactUnwindSection != nullptr; }
+ UnwindInfoSection();
uint64_t getSize() const override { return unwindInfoSize; }
- virtual void prepareRelocations(InputSection *) = 0;
-
+ bool isNeeded() const override;
+ void finalize() override;
+ void writeTo(uint8_t *buf) const override;
void setCompactUnwindSection(MergedOutputSection *cuSection) {
compactUnwindSection = cuSection;
}
-protected:
- UnwindInfoSection()
- : SyntheticSection(segment_names::text, section_names::unwindInfo) {
- align = 4;
- }
+ using EncodingMap = llvm::DenseMap<compact_unwind_encoding_t, size_t>;
+
+ struct SecondLevelPage {
+ uint32_t kind;
+ size_t entryIndex;
+ size_t entryCount;
+ size_t byteCount;
+ std::vector<compact_unwind_encoding_t> localEncodings;
+ EncodingMap localEncodingIndexes;
+ };
+private:
+ std::vector<std::pair<compact_unwind_encoding_t, size_t>> commonEncodings;
+ EncodingMap commonEncodingIndexes;
+ // Indices of personality functions within the GOT.
+ std::vector<uint32_t> personalities;
+ std::vector<unwind_info_section_header_lsda_index_entry> lsdaEntries;
+ // Map of function offset (from the image base) to an index within the LSDA
+ // array.
+ llvm::DenseMap<uint32_t, uint32_t> functionToLsdaIndex;
+ std::vector<CompactUnwindEntry64> cuVector;
+ std::vector<CompactUnwindEntry64 *> cuPtrVector;
+ std::vector<SecondLevelPage> secondLevelPages;
MergedOutputSection *compactUnwindSection = nullptr;
+ uint64_t level2PagesOffset = 0;
uint64_t unwindInfoSize = 0;
};
-UnwindInfoSection *makeUnwindInfoSection();
void prepareCompactUnwind(InputSection *isec);
} // namespace macho
diff --git a/lld/MachO/Writer.cpp b/lld/MachO/Writer.cpp
index 9afe73d872d26..8b10e176bf89f 100644
--- a/lld/MachO/Writer.cpp
+++ b/lld/MachO/Writer.cpp
@@ -71,6 +71,7 @@ class Writer {
SymtabSection *symtabSection = nullptr;
IndirectSymtabSection *indirectSymtabSection = nullptr;
CodeSignatureSection *codeSignatureSection = nullptr;
+ UnwindInfoSection *unwindInfoSection = nullptr;
FunctionStartsSection *functionStartsSection = nullptr;
LCUuid *uuidCommand = nullptr;
@@ -233,12 +234,10 @@ template <class LP> class LCSegment : public LoadCommand {
};
class LCMain : public LoadCommand {
- uint32_t getSize() const override {
- return sizeof(structs::entry_point_command);
- }
+ uint32_t getSize() const override { return sizeof(entry_point_command); }
void writeTo(uint8_t *buf) const override {
- auto *c = reinterpret_cast<structs::entry_point_command *>(buf);
+ auto *c = reinterpret_cast<entry_point_command *>(buf);
c->cmd = LC_MAIN;
c->cmdsize = getSize();
@@ -516,7 +515,7 @@ void Writer::scanRelocations() {
TimeTraceScope timeScope("Scan relocations");
for (InputSection *isec : inputSections) {
if (isec->segname == segment_names::ld) {
- in.unwindInfo->prepareRelocations(isec);
+ prepareCompactUnwind(isec);
continue;
}
@@ -797,6 +796,7 @@ template <class LP> void Writer::createOutputSections() {
TimeTraceScope timeScope("Create output sections");
// First, create hidden sections
stringTableSection = make<StringTableSection>();
+ unwindInfoSection = make<UnwindInfoSection>(); // TODO(gkm): only when no -r
symtabSection = makeSymtabSection<LP>(*stringTableSection);
indirectSymtabSection = make<IndirectSymtabSection>();
if (config->adhocCodesign)
@@ -828,9 +828,9 @@ template <class LP> void Writer::createOutputSections() {
for (const auto &it : mergedOutputSections) {
StringRef segname = it.first.first;
MergedOutputSection *osec = it.second;
- if (segname == segment_names::ld) {
+ if (unwindInfoSection && segname == segment_names::ld) {
assert(osec->name == section_names::compactUnwind);
- in.unwindInfo->setCompactUnwindSection(osec);
+ unwindInfoSection->setCompactUnwindSection(osec);
} else {
getOrCreateOutputSegment(segname)->addOutputSection(osec);
}
@@ -991,7 +991,6 @@ template <class LP> void macho::createSyntheticSections() {
in.stubs = make<StubsSection>();
in.stubHelper = make<StubHelperSection>();
in.imageLoaderCache = make<ImageLoaderCacheSection>();
- in.unwindInfo = makeUnwindInfoSection();
}
OutputSection *macho::firstTLVDataSection = nullptr;
diff --git a/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libSystem.tbd b/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libSystem.tbd
deleted file mode 100644
index b7d54aa6b5561..0000000000000
--- a/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libSystem.tbd
+++ /dev/null
@@ -1,14 +0,0 @@
---- !tapi-tbd
-tbd-version: 4
-targets: [ armv7k-watchos, arm64_32-watchos ]
-uuids:
- - target: armv7k-watchos
- value: 00000000-0000-0000-0000-000000000001
- - target: arm64_32-watchos
- value: 00000000-0000-0000-0000-000000000002
-install-name: '/usr/lib/libSystem.dylib'
-current-version: 1.0.0
-exports:
- - targets: [ arm64_32-watchos, armv7k-watchos ]
- symbols: [ dyld_stub_binder ]
-...
diff --git a/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++.tbd b/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++.tbd
deleted file mode 100644
index 67d0f5d841653..0000000000000
--- a/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++.tbd
+++ /dev/null
@@ -1,14 +0,0 @@
---- !tapi-tbd
-tbd-version: 4
-targets: [ armv7k-watchos, arm64_32-watchos ]
-uuids:
- - target: armv7k-watchos
- value: 00000000-0000-0000-0000-000000000001
- - target: arm64_32-watchos
- value: 00000000-0000-0000-0000-000000000002
-install-name: '/usr/lib/libc++.dylib'
-current-version: 1.0.0
-reexported-libraries:
- - targets: [ arm64_32-watchos, armv7k-watchos ]
- libraries: [ '/usr/lib/libc++abi.dylib' ]
-...
diff --git a/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++abi.tbd b/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++abi.tbd
deleted file mode 100644
index 435cc82f25582..0000000000000
--- a/lld/test/MachO/Inputs/WatchOS.sdk/usr/lib/libc++abi.tbd
+++ /dev/null
@@ -1,14 +0,0 @@
---- !tapi-tbd
-tbd-version: 4
-targets: [ armv7k-watchos, arm64_32-watchos ]
-uuids:
- - target: armv7k-watchos
- value: 00000000-0000-0000-0000-000000000001
- - target: arm64_32-watchos
- value: 00000000-0000-0000-0000-000000000002
-install-name: '/usr/lib/libc++abi.dylib'
-current-version: 1.0.0
-exports:
- - targets: [ arm64_32-watchos, armv7k-watchos ]
- symbols: [ ___gxx_personality_v0 ]
-...
diff --git a/lld/test/MachO/arm64-32-reloc-got-load.s b/lld/test/MachO/arm64-32-reloc-got-load.s
deleted file mode 100644
index b26aea3d4eda4..0000000000000
--- a/lld/test/MachO/arm64-32-reloc-got-load.s
+++ /dev/null
@@ -1,48 +0,0 @@
-# REQUIRES: aarch64
-
-# RUN: rm -rf %t; split-file %s %t
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-darwin %t/main.s -o %t/main.o
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-darwin %t/foobar.s -o %t/foobar.o
-
-# RUN: %lld-watchos -lSystem -arch arm64_32 -o %t/static %t/main.o %t/foobar.o
-# RUN: llvm-objdump --macho -d --no-show-raw-insn --syms %t/static | FileCheck %s --check-prefix=STATIC
-
-# RUN: %lld-watchos -lSystem -arch arm64_32 -dylib -o %t/libfoo.dylib %t/foobar.o
-# RUN: %lld-watchos -lSystem -arch arm64_32 -o %t/main %t/main.o %t/libfoo.dylib
-# RUN: llvm-objdump --macho -d --no-show-raw-insn --section-headers %t/main | FileCheck %s --check-prefix=DYLIB
-
-# STATIC-LABEL: _main:
-# STATIC-NEXT: adrp x8, [[#]] ; 0x[[#%x,PAGE:]]
-# STATIC-NEXT: add x8, x8, #[[#%u,FOO_OFF:]]
-# STATIC-NEXT: adrp x8, [[#]] ; 0x[[#PAGE]]
-# STATIC-NEXT: add x8, x8, #[[#%u,BAR_OFF:]]
-# STATIC-NEXT: ret
-
-# STATIC-LABEL: SYMBOL TABLE:
-# STATIC-DAG: {{0*}}[[#%x,PAGE+FOO_OFF]] g F __TEXT,__text _foo
-# STATIC-DAG: {{0*}}[[#%x,PAGE+BAR_OFF]] g F __TEXT,__text _bar
-
-# DYLIB-LABEL: _main:
-# DYLIB-NEXT: adrp x8, [[#]] ; 0x[[#%x,GOT:]]
-# DYLIB-NEXT: ldr w8, [x8, #4]
-# DYLIB-NEXT: adrp x8, [[#]] ; 0x[[#GOT]]
-# DYLIB-NEXT: ldr w8, [x8]
-# DYLIB-NEXT: ret
-# DYLIB-NEXT: Sections:
-# DYLIB-NEXT: Idx Name Size VMA Type
-# DYLIB: [[#]] __got 00000008 [[#%.8x,GOT]] DATA
-
-#--- main.s
-.globl _main, _foo, _bar
-.p2align 2
-_main:
- adrp x8, _foo at GOTPAGE
- ldr w8, [x8, _foo at GOTPAGEOFF]
- adrp x8, _bar at GOTPAGE
- ldr w8, [x8, _bar at GOTPAGEOFF]
- ret
-
-#--- foobar.s
-.globl _foo, _bar
-_foo:
-_bar:
diff --git a/lld/test/MachO/arm64-32-stubs.s b/lld/test/MachO/arm64-32-stubs.s
deleted file mode 100644
index 9ea957d2ce1a3..0000000000000
--- a/lld/test/MachO/arm64-32-stubs.s
+++ /dev/null
@@ -1,60 +0,0 @@
-# REQUIRES: aarch64
-
-## FIXME: This test is very similar to arm64-stubs.s, but has been split into a
-## separate file because llvm-objdump doesn't correctly symbolize arm64_32. In
-## particular, the "literal pool symbol address" comments are missing (PR49944).
-
-# RUN: rm -rf %t; split-file %s %t
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %t/foo.s -o %t/foo.o
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %t/bar.s -o %t/bar.o
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %t/test.s -o %t/test.o
-# RUN: %lld-watchos -dylib -install_name @executable_path/libfoo.dylib %t/foo.o -o %t/libfoo.dylib
-# RUN: %lld-watchos -dylib -install_name @executable_path/libbar.dylib %t/bar.o -o %t/libbar.dylib
-# RUN: %lld-watchos -lSystem %t/libfoo.dylib %t/libbar.dylib %t/test.o -o %t/test
-
-# RUN: llvm-objdump --macho -d --no-show-raw-insn --section="__TEXT,__stubs" --section="__TEXT,__stub_helper" %t/test | FileCheck %s
-
-# CHECK: _main:
-# CHECK-NEXT: bl 0x[[#%x,FOO:]] ; symbol stub for: _foo
-# CHECK-NEXT: bl 0x[[#%x,BAR:]] ; symbol stub for: _bar
-# CHECK-NEXT: ret
-
-# CHECK-LABEL: Contents of (__TEXT,__stubs) section
-# CHECK-NEXT: [[#BAR]]: adrp x16
-# CHECK-NEXT: ldr w16, [x16{{.*}}]
-# CHECK-NEXT: br x16
-# CHECK-NEXT: [[#FOO]]: adrp x16
-# CHECK-NEXT: ldr w16, [x16{{.*}}]
-# CHECK-NEXT: br x16
-
-# CHECK-LABEL: Contents of (__TEXT,__stub_helper) section
-# CHECK-NEXT: [[#%x,HELPER_HEADER:]]: adrp x17
-# CHECK-NEXT: add x17, x17
-# CHECK-NEXT: stp x16, x17, [sp, #-16]!
-# CHECK-NEXT: adrp x16
-# CHECK-NEXT: ldr w16, [x16]
-# CHECK-NEXT: br x16
-# CHECK-NEXT: ldr w16, 0x[[#%x,BAR_BIND_OFF_ADDR:]]
-# CHECK-NEXT: b 0x[[#HELPER_HEADER]]
-# CHECK-NEXT: [[#BAR_BIND_OFF_ADDR]]: udf #0
-# CHECK-NEXT: ldr w16, 0x[[#%x,FOO_BIND_OFF_ADDR:]]
-# CHECK-NEXT: b 0x[[#HELPER_HEADER]]
-# CHECK-NEXT: [[#FOO_BIND_OFF_ADDR]]: udf #11
-
-#--- foo.s
-.globl _foo
-_foo:
-
-#--- bar.s
-.globl _bar
-_bar:
-
-#--- test.s
-.text
-.globl _main
-
-.p2align 2
-_main:
- bl _foo
- bl _bar
- ret
diff --git a/lld/test/MachO/compact-unwind.s b/lld/test/MachO/compact-unwind.s
index 1da965f2b3198..1d65d41964e03 100644
--- a/lld/test/MachO/compact-unwind.s
+++ b/lld/test/MachO/compact-unwind.s
@@ -3,23 +3,16 @@
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 %t/my-personality.s -o %t/x86_64-my-personality.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 %t/main.s -o %t/x86_64-main.o
# RUN: %lld -arch x86_64 -pie -lSystem -lc++ %t/x86_64-my-personality.o %t/x86_64-main.o -o %t/x86_64-personality-first
-# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/x86_64-personality-first | FileCheck %s --check-prefixes=FIRST,CHECK -D#%x,BASE=0x100000000
+# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/x86_64-personality-first | FileCheck %s --check-prefixes=FIRST,CHECK
# RUN: %lld -arch x86_64 -pie -lSystem -lc++ %t/x86_64-main.o %t/x86_64-my-personality.o -o %t/x86_64-personality-second
-# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/x86_64-personality-second | FileCheck %s --check-prefixes=SECOND,CHECK -D#%x,BASE=0x100000000
+# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/x86_64-personality-second | FileCheck %s --check-prefixes=SECOND,CHECK
# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin19.0.0 %t/my-personality.s -o %t/arm64-my-personality.o
# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin19.0.0 %t/main.s -o %t/arm64-main.o
# RUN: %lld -arch arm64 -pie -lSystem -lc++ %t/arm64-my-personality.o %t/arm64-main.o -o %t/arm64-personality-first
-# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/arm64-personality-first | FileCheck %s --check-prefixes=FIRST,CHECK -D#%x,BASE=0x100000000
+# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/arm64-personality-first | FileCheck %s --check-prefixes=FIRST,CHECK
# RUN: %lld -arch arm64 -pie -lSystem -lc++ %t/arm64-main.o %t/arm64-my-personality.o -o %t/arm64-personality-second
-# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/arm64-personality-second | FileCheck %s --check-prefixes=SECOND,CHECK -D#%x,BASE=0x100000000
-
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %t/my-personality.s -o %t/arm64-32-my-personality.o
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %t/main.s -o %t/arm64-32-main.o
-# RUN: %lld-watchos -pie -lSystem -lc++ %t/arm64-32-my-personality.o %t/arm64-32-main.o -o %t/arm64-32-personality-first
-# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/arm64-32-personality-first | FileCheck %s --check-prefixes=FIRST,CHECK -D#%x,BASE=0x4000
-# RUN: %lld-watchos -pie -lSystem -lc++ %t/arm64-32-main.o %t/arm64-32-my-personality.o -o %t/arm64-32-personality-second
-# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/arm64-32-personality-second | FileCheck %s --check-prefixes=SECOND,CHECK -D#%x,BASE=0x4000
+# RUN: llvm-objdump --macho --unwind-info --syms --indirect-symbols --rebase %t/arm64-personality-second | FileCheck %s --check-prefixes=SECOND,CHECK
# FIRST: Indirect symbols for (__DATA_CONST,__got)
# FIRST-NEXT: address index name
@@ -39,16 +32,16 @@
# CHECK: Contents of __unwind_info section:
# CHECK: Personality functions: (count = 2)
-# CHECK-DAG: personality[{{[0-9]+}}]: 0x{{0*}}[[#MY_PERSONALITY-BASE]]
-# CHECK-DAG: personality[{{[0-9]+}}]: 0x{{0*}}[[#GXX_PERSONALITY-BASE]]
+# CHECK-DAG: personality[{{[0-9]+}}]: 0x{{0*}}[[#MY_PERSONALITY-0x100000000]]
+# CHECK-DAG: personality[{{[0-9]+}}]: 0x{{0*}}[[#GXX_PERSONALITY-0x100000000]]
# CHECK: LSDA descriptors:
-# CHECK-DAG: function offset=0x[[#%.8x,FOO-BASE]], LSDA offset=0x[[#%.8x,EXCEPTION0-BASE]]
-# CHECK-DAG: function offset=0x[[#%.8x,MAIN-BASE]], LSDA offset=0x[[#%.8x,EXCEPTION1-BASE]]
+# CHECK-DAG: function offset=0x{{0*}}[[#FOO-0x100000000]], LSDA offset=0x{{0*}}[[#EXCEPTION0-0x100000000]]
+# CHECK-DAG: function offset=0x{{0*}}[[#MAIN-0x100000000]], LSDA offset=0x{{0*}}[[#EXCEPTION1-0x100000000]]
## Check that we do not add rebase opcodes to the compact unwind section.
# CHECK: Rebase table:
# CHECK-NEXT: segment section address type
-# CHECK-NEXT: __DATA_CONST __got 0x{{[0-9A-F]*}} pointer
+# CHECK-NEXT: __DATA_CONST __got 0x{{[0-9a-f]*}} pointer
# CHECK-NOT: __TEXT
#--- my-personality.s
diff --git a/lld/test/MachO/header.s b/lld/test/MachO/header.s
index 77356eb813cd6..17bcb0f3e039a 100644
--- a/lld/test/MachO/header.s
+++ b/lld/test/MachO/header.s
@@ -1,27 +1,19 @@
# REQUIRES: x86, aarch64
# RUN: rm -rf %t && mkdir -p %t
-# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/x86-64-test.o
+# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/x86_64-test.o
# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %s -o %t/arm64-test.o
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %s -o %t/arm64-32-test.o
-# RUN: %lld -arch x86_64 -platform_version macos 10.5.0 11.0 -o %t/x86-64-executable %t/x86-64-test.o
+# RUN: %lld -arch x86_64 -platform_version macos 10.5.0 11.0 -o %t/x86-64-executable %t/x86_64-test.o
# RUN: %lld -arch arm64 -o %t/arm64-executable %t/arm64-test.o
-# RUN: %lld-watchos -o %t/arm64-32-executable %t/arm64-32-test.o
-# RUN: %lld -arch x86_64 -dylib -o %t/x86-64-dylib %t/x86-64-test.o
+# RUN: %lld -arch x86_64 -dylib -o %t/x86-64-dylib %t/x86_64-test.o
# RUN: %lld -arch arm64 -dylib -o %t/arm64-dylib %t/arm64-test.o
-# RUN: %lld-watchos -dylib -o %t/arm64-32-dylib %t/arm64-32-test.o
-# RUN: llvm-objdump --macho --private-header %t/x86-64-executable | FileCheck %s -DCPU=X86_64 -DCAPS=LIB64
-# RUN: llvm-objdump --macho --private-header %t/arm64-executable | FileCheck %s -DCPU=ARM64 -DCAPS=0x00
-# RUN: llvm-objdump --macho --private-header %t/arm64-32-executable | FileCheck %s --check-prefix=ARM64-32
-# RUN: llvm-objdump --macho --private-header %t/x86-64-dylib | FileCheck %s -DCPU=X86_64 -DCAPS=0x00
-# RUN: llvm-objdump --macho --private-header %t/arm64-dylib | FileCheck %s -DCPU=ARM64 -DCAPS=0x00
-# RUN: llvm-objdump --macho --private-header %t/arm64-32-dylib | FileCheck %s --check-prefix=ARM64-32
+# RUN: llvm-objdump --macho --private-header %t/x86-64-executable | FileCheck %s -DCAPS=LIB64
+# RUN: llvm-objdump --macho --private-header %t/arm64-executable | FileCheck %s -DCAPS=0x00
+# RUN: llvm-objdump --macho --private-header %t/x86-64-dylib | FileCheck %s -DCAPS=0x00
+# RUN: llvm-objdump --macho --private-header %t/arm64-dylib | FileCheck %s -DCAPS=0x00
-# CHECK: magic cputype cpusubtype caps filetype {{.*}} flags
-# CHECK-NEXT: MH_MAGIC_64 [[CPU]] ALL [[CAPS]] {{.*}} NOUNDEFS {{.*}} TWOLEVEL
-
-# ARM64-32: magic cputype cpusubtype caps filetype {{.*}} flags
-# ARM64-32-NEXT: MH_MAGIC ARM64_32 V8 0x00 {{.*}} NOUNDEFS {{.*}} TWOLEVEL
+# CHECK: magic cputype cpusubtype caps filetype {{.*}} flags
+# CHECK-NEXT: MH_MAGIC_64 {{.*}} ALL [[CAPS]] {{.*}} NOUNDEFS {{.*}} TWOLEVEL
.globl _main
_main:
diff --git a/lld/test/MachO/lit.local.cfg b/lld/test/MachO/lit.local.cfg
index 17e63171502d9..dd5d7cbc425b8 100644
--- a/lld/test/MachO/lit.local.cfg
+++ b/lld/test/MachO/lit.local.cfg
@@ -2,20 +2,12 @@
import os
-# We specify the most commonly-used archs and platform versions in our tests
-# here. Tests which need
diff erent settings can just append to this, as only
-# the last value will be used.
+# We specify the most commonly-used arch and platform version in our tests here
+# Tests which need
diff erent settings can just append to this, as only the last
+# value will be used.
#
# Note however that this does not apply to `-syslibroot`: each instance of that
-# flag will append to the set of library roots. As such, we define a separate
-# alias for each platform.
-
-config.substitutions.append(('%lld-watchos',
- 'ld64.lld -fatal_warnings -arch arm64_32 -platform_version watchos 7.0 8.0 -syslibroot ' +
- os.path.join(config.test_source_root, "MachO", "Inputs", "WatchOS.sdk")))
-
-# Since most of our tests are written around x86_64, we give this platform the
-# shortest substitution of "%lld".
+# flag will append to the set of library roots.
lld = ('ld64.lld -arch x86_64 -platform_version macos 10.0 11.0 -syslibroot ' +
os.path.join(config.test_source_root, "MachO", "Inputs", "MacOSX.sdk"))
config.substitutions.append(('%lld', lld + ' -fatal_warnings'))
diff --git a/lld/test/MachO/segments.s b/lld/test/MachO/segments.s
index e63848baf3a44..f4ac4c80a1765 100644
--- a/lld/test/MachO/segments.s
+++ b/lld/test/MachO/segments.s
@@ -1,28 +1,19 @@
-# REQUIRES: x86, aarch64
-# RUN: rm -rf %t; mkdir -p %t
-# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/x86_64.o
-# RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %s -o %t/arm64-32.o
-# RUN: %lld -o %t/x86_64 %t/x86_64.o
-# RUN: %lld-watchos -o %t/arm64_32 %t/arm64-32.o
-
-# RUN: llvm-readobj --macho-segment %t/x86_64 > %t/x86_64.out
-# RUN: echo "Total file size" >> %t/x86_64.out
-# RUN: wc -c %t/x86_64 >> %t/x86_64.out
-# RUN: FileCheck %s -DSUFFIX=_64 -DPAGEZERO_SIZE=0x100000000 -DTEXT_ADDR=0x100000000 < %t/x86_64.out
-
-# RUN: llvm-readobj --macho-segment %t/arm64_32 > %t/arm64-32.out
-# RUN: echo "Total file size" >> %t/arm64-32.out
-# RUN: wc -c %t/arm64_32 >> %t/arm64-32.out
-# RUN: FileCheck %s -DSUFFIX= -DPAGEZERO_SIZE=0x1000 -DTEXT_ADDR=0x4000 < %t/arm64-32.out
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
+# RUN: %lld -o %t %t.o
+# RUN: llvm-readobj --macho-segment %t > %t.out
+# RUN: echo "Total file size" >> %t.out
+# RUN: wc -c %t >> %t.out
+# RUN: FileCheck %s < %t.out
## These two segments must always be present at the start of an executable.
# CHECK-NOT: Segment {
# CHECK: Segment {
-# CHECK-NEXT: Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
+# CHECK-NEXT: Cmd: LC_SEGMENT_64
# CHECK-NEXT: Name: __PAGEZERO
-# CHECK-NEXT: Size:
+# CHECK-NEXT: Size: 72
# CHECK-NEXT: vmaddr: 0x0
-# CHECK-NEXT: vmsize: [[PAGEZERO_SIZE]]
+# CHECK-NEXT: vmsize: 0x100000000
# CHECK-NEXT: fileoff: 0
# CHECK-NEXT: filesize: 0
## The kernel won't execute a binary with the wrong protections for __PAGEZERO.
@@ -32,10 +23,10 @@
# CHECK-NEXT: flags: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Segment {
-# CHECK-NEXT: Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
+# CHECK-NEXT: Cmd: LC_SEGMENT_64
# CHECK-NEXT: Name: __TEXT
-# CHECK-NEXT: Size:
-# CHECK-NEXT: vmaddr: [[TEXT_ADDR]]
+# CHECK-NEXT: Size: 152
+# CHECK-NEXT: vmaddr: 0x100000000
# CHECK-NEXT: vmsize:
## dyld3 assumes that the __TEXT segment starts from the file header
# CHECK-NEXT: fileoff: 0
@@ -47,7 +38,7 @@
# CHECK-NEXT: }
## Check that we handle max-length names correctly.
-# CHECK: Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
+# CHECK: Cmd: LC_SEGMENT_64
# CHECK-NEXT: Name: maxlen_16ch_name
## This segment must always be present at the end of an executable, and cover
@@ -60,7 +51,7 @@
# CHECK-NEXT: filesize: [[#%u, LINKEDIT_SIZE:]]
# CHECK-NEXT: maxprot: r--
# CHECK-NEXT: initprot: r--
-# CHECK-NOT: Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
+# CHECK-NOT: Cmd: LC_SEGMENT_64
# CHECK-LABEL: Total file size
# CHECK-NEXT: [[#%u, LINKEDIT_OFF + LINKEDIT_SIZE]]
@@ -68,6 +59,7 @@
.text
.global _main
_main:
+ mov $0, %rax
ret
.section maxlen_16ch_name,foo
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