Author: Jason Molenda Date: 2021-08-12T14:44:17-07:00 New Revision: 7150b562081ffb2ec5406edfa579b16d3ec20d90
URL: https://github.com/llvm/llvm-project/commit/7150b562081ffb2ec5406edfa579b16d3ec20d90 DIFF: https://github.com/llvm/llvm-project/commit/7150b562081ffb2ec5406edfa579b16d3ec20d90.diff LOG: Symbolicate aarch64 adrp+add pc-relative addr in disass On aarch64 a two instruction sequence is used to calculate a pc-relative address, add some state to the DisassemblerLLVMC symbolicator so it can track the necessary data across the two instructions and compute the address being calculated. Differential Revision: https://reviews.llvm.org/D107213 rdar://49119253 Added: lldb/test/API/functionalities/disassemble/aarch64-adrp-add/TestAArch64AdrpAdd.py lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64.yaml lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64_32.yaml lldb/test/API/functionalities/disassemble/aarch64-adrp-add/main.c Modified: lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.cpp lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h Removed: ################################################################################ diff --git a/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.cpp b/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.cpp index 7cd505d0ed292..24998e96af6fd 100644 --- a/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.cpp +++ b/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.cpp @@ -1030,7 +1030,8 @@ bool DisassemblerLLVMC::MCDisasmInstance::IsCall(llvm::MCInst &mc_inst) const { DisassemblerLLVMC::DisassemblerLLVMC(const ArchSpec &arch, const char *flavor_string) : Disassembler(arch, flavor_string), m_exe_ctx(nullptr), m_inst(nullptr), - m_data_from_file(false) { + m_data_from_file(false), m_adrp_address(LLDB_INVALID_ADDRESS), + m_adrp_insn() { if (!FlavorValidForArchSpec(arch, m_flavor.c_str())) { m_flavor.assign("default"); } @@ -1310,6 +1311,46 @@ const char *DisassemblerLLVMC::SymbolLookup(uint64_t value, uint64_t *type_ptr, Target *target = m_exe_ctx ? m_exe_ctx->GetTargetPtr() : nullptr; Address value_so_addr; Address pc_so_addr; + if (target->GetArchitecture().GetMachine() == llvm::Triple::aarch64 || + target->GetArchitecture().GetMachine() == llvm::Triple::aarch64_be || + target->GetArchitecture().GetMachine() == llvm::Triple::aarch64_32) { + if (*type_ptr == LLVMDisassembler_ReferenceType_In_ARM64_ADRP) { + m_adrp_address = pc; + m_adrp_insn = value; + *name = nullptr; + *type_ptr = LLVMDisassembler_ReferenceType_InOut_None; + return nullptr; + } + // If this instruction is an ADD and + // the previous instruction was an ADRP and + // the ADRP's register and this ADD's register are the same, + // then this is a pc-relative address calculation. + if (*type_ptr == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri && + m_adrp_insn.hasValue() && m_adrp_address == pc - 4 && + (m_adrp_insn.getValue() & 0x1f) == ((value >> 5) & 0x1f)) { + uint32_t addxri_inst; + uint64_t adrp_imm, addxri_imm; + // Get immlo and immhi bits, OR them together to get the ADRP imm + // value. + adrp_imm = ((m_adrp_insn.getValue() & 0x00ffffe0) >> 3) | + ((m_adrp_insn.getValue() >> 29) & 0x3); + // if high bit of immhi after right-shifting set, sign extend + if (adrp_imm & (1ULL << 20)) + adrp_imm |= ~((1ULL << 21) - 1); + + addxri_inst = value; + addxri_imm = (addxri_inst >> 10) & 0xfff; + // check if 'sh' bit is set, shift imm value up if so + // (this would make no sense, ADRP already gave us this part) + if ((addxri_inst >> (12 + 5 + 5)) & 1) + addxri_imm <<= 12; + value = (m_adrp_address & 0xfffffffffffff000LL) + (adrp_imm << 12) + + addxri_imm; + } + m_adrp_address = LLDB_INVALID_ADDRESS; + m_adrp_insn.reset(); + } + if (m_inst->UsingFileAddress()) { ModuleSP module_sp(m_inst->GetAddress().GetModule()); if (module_sp) { @@ -1371,6 +1412,12 @@ const char *DisassemblerLLVMC::SymbolLookup(uint64_t value, uint64_t *type_ptr, } } + // TODO: llvm-objdump sets the type_ptr to the + // LLVMDisassembler_ReferenceType_Out_* values + // based on where value_so_addr is pointing, with + // Mach-O specific augmentations in MachODump.cpp. e.g. + // see what AArch64ExternalSymbolizer::tryAddingSymbolicOperand + // handles. *type_ptr = LLVMDisassembler_ReferenceType_InOut_None; *name = nullptr; return nullptr; diff --git a/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h b/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h index 9b3741bdd18f0..91ddaabc8671c 100644 --- a/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h +++ b/lldb/source/Plugins/Disassembler/LLVMC/DisassemblerLLVMC.h @@ -16,6 +16,7 @@ #include "lldb/Core/Address.h" #include "lldb/Core/Disassembler.h" #include "lldb/Core/PluginManager.h" +#include "llvm/ADT/Optional.h" class InstructionLLVMC; @@ -73,6 +74,12 @@ class DisassemblerLLVMC : public lldb_private::Disassembler { InstructionLLVMC *m_inst; std::mutex m_mutex; bool m_data_from_file; + // Save the AArch64 ADRP instruction word and address it was at, + // in case the next instruction is an ADD to the same register; + // this is a pc-relative address calculation and we need both + // parts to calculate the symbolication. + lldb::addr_t m_adrp_address; + llvm::Optional<uint32_t> m_adrp_insn; // Since we need to make two actual MC Disassemblers for ARM (ARM & THUMB), // and there's a bit of goo to set up and own in the MC disassembler world, diff --git a/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/TestAArch64AdrpAdd.py b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/TestAArch64AdrpAdd.py new file mode 100644 index 0000000000000..325607028c033 --- /dev/null +++ b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/TestAArch64AdrpAdd.py @@ -0,0 +1,68 @@ +""" +Test that the arm64 ADRP + ADD pc-relative addressing pair is symbolicated. +""" + +from lldbsuite.test.decorators import * +from lldbsuite.test.lldbtest import * +from lldbsuite.test import lldbutil + +class TestAArch64AdrpAdd(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + @no_debug_info_test + def test_arm64(self): + src_dir = self.getSourceDir() + yaml_path = os.path.join(src_dir, "a.out-arm64.yaml") + obj_path = self.getBuildArtifact("a.out-arm64") + self.yaml2obj(yaml_path, obj_path) + + target = self.dbg.CreateTarget(obj_path) + self.assertTrue(target, VALID_TARGET) + + mains = target.FindFunctions("main") + for f in mains.symbols: + binaryname = f.GetStartAddress().GetModule().GetFileSpec().GetFilename() + if binaryname == "a.out-arm64": + self.disassemble_check_for_hi_and_foo(target, f, binaryname) + + @no_debug_info_test + def test_arm64_32(self): + src_dir = self.getSourceDir() + yaml_path = os.path.join(src_dir, "a.out-arm64_32.yaml") + obj_path = self.getBuildArtifact("a.out-arm64_32") + self.yaml2obj(yaml_path, obj_path) + + target = self.dbg.CreateTarget(obj_path) + self.assertTrue(target, VALID_TARGET) + + mains = target.FindFunctions("main") + for f in mains.symbols: + binaryname = f.GetStartAddress().GetModule().GetFileSpec().GetFilename() + if binaryname == "a.out-arm64_32": + self.disassemble_check_for_hi_and_foo(target, f, binaryname) + + def disassemble_check_for_hi_and_foo(self, target, func, binaryname): + insns = func.GetInstructions(target) + found_hi_string = False + found_foo = False + + # The binary has an ADRP + ADD instruction pair which load + # the pc-relative address of a c-string, and loads the address + # of a function into a function pointer. lldb should show + # that c-string and the name of that function in the disassembly + # comment field. + for i in insns: + if "HI" in i.GetComment(target): + found_hi_string = True + if "foo" in i.GetComment(target): + found_foo = True + if found_hi_string == False or found_foo == False: + print('Did not find "HI" string or "foo" in disassembly symbolication in %s' % binaryname) + if self.TraceOn(): + strm = lldb.SBStream() + insns.GetDescription(strm) + print('Disassembly of main(), looking for "HI" and "foo" in comments:') + print(strm.GetData()) + self.assertTrue(found_hi_string) + self.assertTrue(found_foo) diff --git a/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64.yaml b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64.yaml new file mode 100644 index 0000000000000..88ff4483fca5b --- /dev/null +++ b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64.yaml @@ -0,0 +1,397 @@ +--- !mach-o +FileHeader: + magic: 0xFEEDFACF + cputype: 0x100000C + cpusubtype: 0x0 + filetype: 0x2 + ncmds: 17 + sizeofcmds: 1384 + flags: 0x200085 + reserved: 0x0 +LoadCommands: + - cmd: LC_SEGMENT_64 + cmdsize: 72 + segname: __PAGEZERO + vmaddr: 0 + vmsize: 4294967296 + fileoff: 0 + filesize: 0 + maxprot: 0 + initprot: 0 + nsects: 0 + flags: 0 + - cmd: LC_SEGMENT_64 + cmdsize: 472 + segname: __TEXT + vmaddr: 4294967296 + vmsize: 16384 + fileoff: 0 + filesize: 16384 + maxprot: 5 + initprot: 5 + nsects: 5 + flags: 0 + Sections: + - sectname: __text + segname: __TEXT + addr: 0x100002F20 + size: 4188 + offset: 0x2F20 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x80000400 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: 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+ - sectname: __stubs + segname: __TEXT + addr: 0x100003F7C + size: 12 + offset: 0x3F7C + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x80000408 + reserved1: 0x0 + reserved2: 0xC + reserved3: 0x0 + content: 1F2003D51004025800021FD6 + - sectname: __stub_helper + segname: __TEXT + addr: 0x100003F88 + size: 36 + offset: 0x3F88 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x80000400 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: 110402101F2003D5F047BFA91F2003D55003005800021FD650000018F9FFFF1700000000 + - sectname: __cstring + segname: __TEXT + addr: 0x100003FAC + size: 3 + offset: 0x3FAC + align: 0 + reloff: 0x0 + nreloc: 0 + flags: 0x2 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: '484900' + - sectname: __unwind_info + segname: __TEXT + addr: 0x100003FB0 + size: 80 + offset: 0x3FB0 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x0 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: 010000001C000000000000001C000000000000001C00000002000000202F000034000000340000007D3F00000000000034000000030000000C0002001400020000000001540000000000000200000004 + - cmd: LC_SEGMENT_64 + cmdsize: 152 + segname: __DATA_CONST + vmaddr: 4294983680 + vmsize: 16384 + fileoff: 16384 + filesize: 16384 + maxprot: 3 + initprot: 3 + nsects: 1 + flags: 16 + Sections: + - sectname: __got + segname: __DATA_CONST + addr: 0x100004000 + size: 8 + offset: 0x4000 + align: 3 + reloff: 0x0 + nreloc: 0 + flags: 0x6 + reserved1: 0x1 + reserved2: 0x0 + reserved3: 0x0 + content: '0000000000000000' + - cmd: LC_SEGMENT_64 + cmdsize: 232 + segname: __DATA + vmaddr: 4295000064 + vmsize: 16384 + fileoff: 32768 + filesize: 16384 + maxprot: 3 + initprot: 3 + nsects: 2 + flags: 0 + Sections: + - sectname: __la_symbol_ptr + segname: __DATA + addr: 0x100008000 + size: 8 + offset: 0x8000 + align: 3 + reloff: 0x0 + nreloc: 0 + flags: 0x7 + reserved1: 0x2 + reserved2: 0x0 + reserved3: 0x0 + content: A03F000001000000 + - sectname: __data + segname: __DATA + addr: 0x100008008 + size: 8 + offset: 0x8008 + align: 3 + reloff: 0x0 + nreloc: 0 + flags: 0x0 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: '0000000000000000' + - cmd: LC_SEGMENT_64 + cmdsize: 72 + segname: __LINKEDIT + vmaddr: 4295016448 + vmsize: 16384 + fileoff: 49152 + filesize: 856 + maxprot: 1 + initprot: 1 + nsects: 0 + flags: 0 + - cmd: LC_DYLD_INFO_ONLY + cmdsize: 48 + rebase_off: 49152 + rebase_size: 8 + bind_off: 49160 + bind_size: 24 + weak_bind_off: 0 + weak_bind_size: 0 + lazy_bind_off: 49184 + lazy_bind_size: 16 + export_off: 49200 + export_size: 48 + - cmd: LC_SYMTAB + cmdsize: 24 + symoff: 49256 + nsyms: 7 + stroff: 49384 + strsize: 80 + - cmd: LC_DYSYMTAB + cmdsize: 80 + ilocalsym: 0 + nlocalsym: 3 + iextdefsym: 3 + nextdefsym: 2 + iundefsym: 5 + nundefsym: 2 + tocoff: 0 + ntoc: 0 + modtaboff: 0 + nmodtab: 0 + extrefsymoff: 0 + nextrefsyms: 0 + indirectsymoff: 49368 + nindirectsyms: 3 + extreloff: 0 + nextrel: 0 + locreloff: 0 + nlocrel: 0 + - cmd: LC_LOAD_DYLINKER + cmdsize: 32 + name: 12 + Content: '/usr/lib/dyld' + ZeroPadBytes: 7 + - cmd: LC_UUID + cmdsize: 24 + uuid: 83E9D9C2-4C72-3A13-B9B9-79D3927BEE51 + - cmd: LC_BUILD_VERSION + cmdsize: 32 + platform: 1 + minos: 720896 + sdk: 721664 + ntools: 1 + Tools: + - tool: 3 + version: 42599936 + - cmd: LC_SOURCE_VERSION + cmdsize: 16 + version: 0 + - cmd: LC_MAIN + cmdsize: 24 + entryoff: 12064 + stacksize: 0 + - cmd: LC_LOAD_DYLIB + cmdsize: 56 + dylib: + name: 24 + timestamp: 2 + current_version: 84698117 + compatibility_version: 65536 + Content: '/usr/lib/libSystem.B.dylib' + ZeroPadBytes: 6 + - cmd: LC_FUNCTION_STARTS + cmdsize: 16 + dataoff: 49248 + datasize: 8 + - cmd: LC_DATA_IN_CODE + cmdsize: 16 + dataoff: 49256 + datasize: 0 + - cmd: LC_CODE_SIGNATURE + cmdsize: 16 + dataoff: 49472 + datasize: 536 +LinkEditData: + RebaseOpcodes: + - Opcode: REBASE_OPCODE_SET_TYPE_IMM + Imm: 1 + - Opcode: REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB + Imm: 3 + ExtraData: [ 0x0 ] + - Opcode: REBASE_OPCODE_DO_REBASE_IMM_TIMES + Imm: 1 + - Opcode: REBASE_OPCODE_DONE + Imm: 0 + BindOpcodes: + - Opcode: BIND_OPCODE_SET_DYLIB_ORDINAL_IMM + Imm: 1 + Symbol: '' + - Opcode: BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM + Imm: 0 + Symbol: dyld_stub_binder + - Opcode: BIND_OPCODE_SET_TYPE_IMM + Imm: 1 + Symbol: '' + - Opcode: BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB + Imm: 2 + ULEBExtraData: [ 0x0 ] + Symbol: '' + - Opcode: BIND_OPCODE_DO_BIND + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + LazyBindOpcodes: + - Opcode: BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB + Imm: 3 + ULEBExtraData: [ 0x0 ] + Symbol: '' + - Opcode: BIND_OPCODE_SET_DYLIB_ORDINAL_IMM + Imm: 1 + Symbol: '' + - Opcode: BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM + Imm: 0 + Symbol: _puts + - Opcode: BIND_OPCODE_DO_BIND + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + ExportTrie: + TerminalSize: 0 + NodeOffset: 0 + Name: '' + Flags: 0x0 + Address: 0x0 + Other: 0x0 + ImportName: '' + Children: + - TerminalSize: 0 + NodeOffset: 5 + Name: _ + Flags: 0x0 + Address: 0x0 + Other: 0x0 + ImportName: '' + Children: + - TerminalSize: 2 + NodeOffset: 33 + Name: _mh_execute_header + Flags: 0x0 + Address: 0x0 + Other: 0x0 + ImportName: '' + - TerminalSize: 3 + NodeOffset: 37 + Name: main + Flags: 0x0 + Address: 0x2F20 + Other: 0x0 + ImportName: '' + NameList: + - n_strx: 51 + n_type: 0xE + n_sect: 1 + n_desc: 0 + n_value: 4294979420 + - n_strx: 56 + n_type: 0xE + n_sect: 1 + n_desc: 0 + n_value: 4294979444 + - n_strx: 61 + n_type: 0xE + n_sect: 8 + n_desc: 0 + n_value: 4295000072 + - n_strx: 2 + n_type: 0xF + n_sect: 1 + n_desc: 16 + n_value: 4294967296 + - n_strx: 22 + n_type: 0xF + n_sect: 1 + n_desc: 0 + n_value: 4294979360 + - n_strx: 28 + n_type: 0x1 + n_sect: 0 + n_desc: 256 + n_value: 0 + - n_strx: 34 + n_type: 0x1 + n_sect: 0 + n_desc: 256 + n_value: 0 + StringTable: + - ' ' + - __mh_execute_header + - _main + - _puts + - dyld_stub_binder + - _foo + - _bar + - __dyld_private + - '' + - '' + - '' + - '' +... diff --git a/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64_32.yaml b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64_32.yaml new file mode 100644 index 0000000000000..5d1e081141766 --- /dev/null +++ b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/a.out-arm64_32.yaml @@ -0,0 +1,379 @@ +--- !mach-o +FileHeader: + magic: 0xFEEDFACE + cputype: 0x200000C + cpusubtype: 0x1 + filetype: 0x2 + ncmds: 17 + sizeofcmds: 1204 + flags: 0x200085 +LoadCommands: + - cmd: LC_SEGMENT + cmdsize: 56 + segname: __PAGEZERO + vmaddr: 0 + vmsize: 16384 + fileoff: 0 + filesize: 0 + maxprot: 0 + initprot: 0 + nsects: 0 + flags: 0 + - cmd: LC_SEGMENT + cmdsize: 396 + segname: __TEXT + vmaddr: 16384 + vmsize: 32768 + fileoff: 0 + filesize: 32768 + maxprot: 5 + initprot: 5 + nsects: 5 + flags: 0 + Sections: + - sectname: __text + segname: __TEXT + addr: 0xAF14 + size: 4200 + offset: 0x6F14 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x80000400 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: 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+ - sectname: __stubs + segname: __TEXT + addr: 0xBF7C + size: 12 + offset: 0x7F7C + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x80000408 + reserved1: 0x0 + reserved2: 0xC + reserved3: 0x0 + content: 1F2003D51004021800021FD6 + - sectname: __stub_helper + segname: __TEXT + addr: 0xBF88 + size: 36 + offset: 0x7F88 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x80000400 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: F10302101F2003D5F047BFA91F2003D55003001800021FD650000018F9FFFF1700000000 + - sectname: __cstring + segname: __TEXT + addr: 0xBFAC + size: 3 + offset: 0x7FAC + align: 0 + reloff: 0x0 + nreloc: 0 + flags: 0x2 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: '484900' + - sectname: __unwind_info + segname: __TEXT + addr: 0xBFB0 + size: 80 + offset: 0x7FB0 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x0 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: 010000001C000000000000001C000000000000001C00000002000000146F000034000000340000007D7F00000000000034000000030000000C0002001400020000000001600000000000000200000004 + - cmd: LC_SEGMENT + cmdsize: 124 + segname: __DATA_CONST + vmaddr: 49152 + vmsize: 16384 + fileoff: 32768 + filesize: 16384 + maxprot: 3 + initprot: 3 + nsects: 1 + flags: 16 + Sections: + - sectname: __got + segname: __DATA_CONST + addr: 0xC000 + size: 4 + offset: 0x8000 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x6 + reserved1: 0x1 + reserved2: 0x0 + reserved3: 0x0 + content: '00000000' + - cmd: LC_SEGMENT + cmdsize: 192 + segname: __DATA + vmaddr: 65536 + vmsize: 16384 + fileoff: 49152 + filesize: 16384 + maxprot: 3 + initprot: 3 + nsects: 2 + flags: 0 + Sections: + - sectname: __la_symbol_ptr + segname: __DATA + addr: 0x10000 + size: 4 + offset: 0xC000 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x7 + reserved1: 0x2 + reserved2: 0x0 + reserved3: 0x0 + content: A0BF0000 + - sectname: __data + segname: __DATA + addr: 0x10004 + size: 4 + offset: 0xC004 + align: 2 + reloff: 0x0 + nreloc: 0 + flags: 0x0 + reserved1: 0x0 + reserved2: 0x0 + reserved3: 0x0 + content: '00000000' + - cmd: LC_SEGMENT + cmdsize: 56 + segname: __LINKEDIT + vmaddr: 81920 + vmsize: 16384 + fileoff: 65536 + filesize: 264 + maxprot: 1 + initprot: 1 + nsects: 0 + flags: 0 + - cmd: LC_DYLD_INFO_ONLY + cmdsize: 48 + rebase_off: 65536 + rebase_size: 4 + bind_off: 65540 + bind_size: 24 + weak_bind_off: 0 + weak_bind_size: 0 + lazy_bind_off: 65564 + lazy_bind_size: 12 + export_off: 65576 + export_size: 44 + - cmd: LC_SYMTAB + cmdsize: 24 + symoff: 65628 + nsyms: 7 + stroff: 65724 + strsize: 76 + - cmd: LC_DYSYMTAB + cmdsize: 80 + ilocalsym: 0 + nlocalsym: 3 + iextdefsym: 3 + nextdefsym: 2 + iundefsym: 5 + nundefsym: 2 + tocoff: 0 + ntoc: 0 + modtaboff: 0 + nmodtab: 0 + extrefsymoff: 0 + nextrefsyms: 0 + indirectsymoff: 65712 + nindirectsyms: 3 + extreloff: 0 + nextrel: 0 + locreloff: 0 + nlocrel: 0 + - cmd: LC_LOAD_DYLINKER + cmdsize: 28 + name: 12 + Content: '/usr/lib/dyld' + ZeroPadBytes: 3 + - cmd: LC_UUID + cmdsize: 24 + uuid: 4050A0D9-F607-3ED9-B154-8C9BDDA61736 + - cmd: LC_BUILD_VERSION + cmdsize: 32 + platform: 4 + minos: 459776 + sdk: 459776 + ntools: 1 + Tools: + - tool: 3 + version: 42599936 + - cmd: LC_SOURCE_VERSION + cmdsize: 16 + version: 0 + - cmd: LC_MAIN + cmdsize: 24 + entryoff: 28436 + stacksize: 0 + - cmd: LC_ENCRYPTION_INFO + cmdsize: 20 + cryptoff: 16384 + cryptsize: 16384 + cryptid: 0 + - cmd: LC_LOAD_DYLIB + cmdsize: 52 + dylib: + name: 24 + timestamp: 2 + current_version: 84698117 + compatibility_version: 65536 + Content: '/usr/lib/libSystem.B.dylib' + ZeroPadBytes: 2 + - cmd: LC_FUNCTION_STARTS + cmdsize: 16 + dataoff: 65620 + datasize: 8 + - cmd: LC_DATA_IN_CODE + cmdsize: 16 + dataoff: 65628 + datasize: 0 +LinkEditData: + RebaseOpcodes: + - Opcode: REBASE_OPCODE_SET_TYPE_IMM + Imm: 1 + - Opcode: REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB + Imm: 3 + ExtraData: [ 0x0 ] + - Opcode: REBASE_OPCODE_DO_REBASE_IMM_TIMES + Imm: 1 + BindOpcodes: + - Opcode: BIND_OPCODE_SET_DYLIB_ORDINAL_IMM + Imm: 1 + Symbol: '' + - Opcode: BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM + Imm: 0 + Symbol: dyld_stub_binder + - Opcode: BIND_OPCODE_SET_TYPE_IMM + Imm: 1 + Symbol: '' + - Opcode: BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB + Imm: 2 + ULEBExtraData: [ 0x0 ] + Symbol: '' + - Opcode: BIND_OPCODE_DO_BIND + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + LazyBindOpcodes: + - Opcode: BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB + Imm: 3 + ULEBExtraData: [ 0x0 ] + Symbol: '' + - Opcode: BIND_OPCODE_SET_DYLIB_ORDINAL_IMM + Imm: 1 + Symbol: '' + - Opcode: BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM + Imm: 0 + Symbol: _puts + - Opcode: BIND_OPCODE_DO_BIND + Imm: 0 + Symbol: '' + - Opcode: BIND_OPCODE_DONE + Imm: 0 + Symbol: '' + ExportTrie: + TerminalSize: 0 + NodeOffset: 0 + Name: '' + Flags: 0x0 + Address: 0x0 + Other: 0x0 + ImportName: '' + Children: + - TerminalSize: 0 + NodeOffset: 5 + Name: _ + Flags: 0x0 + Address: 0x0 + Other: 0x0 + ImportName: '' + Children: + - TerminalSize: 2 + NodeOffset: 33 + Name: _mh_execute_header + Flags: 0x0 + Address: 0x0 + Other: 0x0 + ImportName: '' + - TerminalSize: 4 + NodeOffset: 37 + Name: main + Flags: 0x0 + Address: 0x6F14 + Other: 0x0 + ImportName: '' + NameList: + - n_strx: 51 + n_type: 0xE + n_sect: 1 + n_desc: 0 + n_value: 44892 + - n_strx: 56 + n_type: 0xE + n_sect: 1 + n_desc: 0 + n_value: 44916 + - n_strx: 61 + n_type: 0xE + n_sect: 8 + n_desc: 0 + n_value: 65540 + - n_strx: 2 + n_type: 0xF + n_sect: 1 + n_desc: 16 + n_value: 16384 + - n_strx: 22 + n_type: 0xF + n_sect: 1 + n_desc: 0 + n_value: 44820 + - n_strx: 28 + n_type: 0x1 + n_sect: 0 + n_desc: 256 + n_value: 0 + - n_strx: 34 + n_type: 0x1 + n_sect: 0 + n_desc: 256 + n_value: 0 + StringTable: + - ' ' + - __mh_execute_header + - _main + - _puts + - dyld_stub_binder + - _foo + - _bar + - __dyld_private +... diff --git a/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/main.c b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/main.c new file mode 100644 index 0000000000000..ccc50c8be3ac6 --- /dev/null +++ b/lldb/test/API/functionalities/disassemble/aarch64-adrp-add/main.c @@ -0,0 +1,110 @@ +#include <stdio.h> + +// For the test case, we really want the the layout of this binary +// to be: +// +// foo() +// bar() - 4096 bytes of nop's +// main() +// "HI" string +// +// in reality getting this layout from the compiler and linker +// is a crapshoot, so I have yaml's checked in of the correct +// layout. Recompiling from source may not get the needed +// binary layout. + +static int bar(); +static int foo() { return 5 + bar(); } +// A function of 4096 bytes, so when main() loads the +// address of foo() before this one, it has to subtract +// a 4096 page. +#define SIXTY_FOUR_BYTES_NOP \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); \ + asm("nop"); + +static int bar() { + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + SIXTY_FOUR_BYTES_NOP; + return 5; +} +int main() { + int (*f)(void) = foo; + puts("HI"); + return f(); +} _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
