From 60ccaa871b13e82d212b1ed0b5d35030b655014c Mon Sep 17 00:00:00 2001 From: Mike McLaughlin Date: Tue, 14 Jul 2020 23:08:26 -0700 Subject: [PATCH] PAL_VirtualUnwindOutOfProc for MacOS (#39213) PAL_VirtualUnwindOutOfProc for MacOS Add MacOS compact unwind section parsing (__unwind_info) and stepping: SearchCompactEncodingSection, SearchDwarfSection, GetProcInfo, StepWithCompactEncoding*. Add back some (from a previous commit) of the dwarf unwind info parsing functions to use for the dwarf unwind info (__eh_frame section): ReadValue*, ReadULEB128, ReadSLEB128, ReadEncodedPointer, ParseCie, ExtractFde, ExtractProcInfoFromFde. These functions were used and fairly well tested in 3.x. Build libunwind8 source on MacOS for those dwarf unwind info cases. The methoddesc's enum memory region code needed add more of the code version manager's data to the coredump. --- src/coreclr/src/debug/daccess/dacfn.cpp | 7 +- src/coreclr/src/dlls/mscordac/CMakeLists.txt | 6 + src/coreclr/src/pal/src/CMakeLists.txt | 33 +- .../src/exception/compact_unwind_encoding.h | 474 ++++++ .../src/pal/src/exception/remote-unwind.cpp | 1299 ++++++++++++++++- .../src/pal/src/libunwind/CMakeLists.txt | 23 +- .../src/pal/src/libunwind/src/CMakeLists.txt | 33 +- .../src/pal/src/libunwind_mac/include/elf.h | 10 + .../pal/src/libunwind_mac/include/endian.h | 9 + .../libunwind_mac/include/fakestdalign.h.in | 9 + .../libunwind_mac/include/fakestdatomic.h.in | 36 + .../src/libunwind_mac/include/freebsd-elf32.h | 245 ++++ .../src/libunwind_mac/include/freebsd-elf64.h | 252 ++++ .../include/freebsd-elf_common.h | 865 +++++++++++ .../pal/src/libunwind_mac/include/ucontext.h | 47 + .../src/libunwind_mac/src/missing-functions.c | 61 + src/coreclr/src/vm/method.cpp | 10 +- 17 files changed, 3393 insertions(+), 26 deletions(-) create mode 100644 src/coreclr/src/pal/src/exception/compact_unwind_encoding.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/elf.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/endian.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/fakestdalign.h.in create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/fakestdatomic.h.in create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf32.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf64.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf_common.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/include/ucontext.h create mode 100644 src/coreclr/src/pal/src/libunwind_mac/src/missing-functions.c diff --git a/src/coreclr/src/debug/daccess/dacfn.cpp b/src/coreclr/src/debug/daccess/dacfn.cpp index 4e6989c118a26..2aad5dcdfdfc6 100644 --- a/src/coreclr/src/debug/daccess/dacfn.cpp +++ b/src/coreclr/src/debug/daccess/dacfn.cpp @@ -268,7 +268,7 @@ DacVirtualUnwind(ULONG32 threadId, PT_CONTEXT context, PT_KNONVOLATILE_CONTEXT_P memset(contextPointers, 0, sizeof(T_KNONVOLATILE_CONTEXT_POINTERS)); } - HRESULT hr = S_OK; + HRESULT hr = E_NOINTERFACE; #ifdef FEATURE_DATATARGET4 ReleaseHolder dt; @@ -277,9 +277,12 @@ DacVirtualUnwind(ULONG32 threadId, PT_CONTEXT context, PT_KNONVOLATILE_CONTEXT_P { hr = dt->VirtualUnwind(threadId, sizeof(CONTEXT), (BYTE*)context); } - else #endif + + if (hr == E_NOINTERFACE || hr == E_NOTIMPL) { + hr = S_OK; + SIZE_T baseAddress = DacGlobalBase(); if (baseAddress == 0 || !PAL_VirtualUnwindOutOfProc(context, contextPointers, baseAddress, DacReadAllAdapter)) { diff --git a/src/coreclr/src/dlls/mscordac/CMakeLists.txt b/src/coreclr/src/dlls/mscordac/CMakeLists.txt index 94b61b52692f9..7a3e19525f2a9 100644 --- a/src/coreclr/src/dlls/mscordac/CMakeLists.txt +++ b/src/coreclr/src/dlls/mscordac/CMakeLists.txt @@ -179,6 +179,12 @@ if(CLR_CMAKE_HOST_WIN32 AND CLR_CMAKE_TARGET_UNIX) ) endif(CLR_CMAKE_HOST_WIN32 AND CLR_CMAKE_TARGET_UNIX) +if(CLR_CMAKE_HOST_OSX) + list(APPEND COREDAC_LIBRARIES + coreclrpal_dac + ) +endif(CLR_CMAKE_HOST_OSX) + target_link_libraries(mscordaccore PRIVATE ${COREDAC_LIBRARIES}) # Create the DAC module index header file containing the DAC build id diff --git a/src/coreclr/src/pal/src/CMakeLists.txt b/src/coreclr/src/pal/src/CMakeLists.txt index 89c3ed934454d..a0d774c5c8acc 100644 --- a/src/coreclr/src/pal/src/CMakeLists.txt +++ b/src/coreclr/src/pal/src/CMakeLists.txt @@ -18,6 +18,8 @@ if(NOT CLR_CMAKE_USE_SYSTEM_LIBUNWIND) add_subdirectory(libunwind) elseif(NOT CLR_CMAKE_TARGET_OSX) find_unwind_libs(UNWIND_LIBS) +else() + add_subdirectory(libunwind) endif(NOT CLR_CMAKE_USE_SYSTEM_LIBUNWIND) include(configure.cmake) @@ -131,7 +133,6 @@ set(SOURCES debug/debug.cpp exception/seh.cpp exception/signal.cpp - exception/remote-unwind.cpp file/directory.cpp file/file.cpp file/filetime.cpp @@ -214,6 +215,12 @@ set(SOURCES thread/threadsusp.cpp ) +if(NOT CLR_CMAKE_TARGET_OSX) + list(APPEND SOURCES + exception/remote-unwind.cpp + ) +endif(NOT CLR_CMAKE_TARGET_OSX) + if(NOT CLR_CMAKE_USE_SYSTEM_LIBUNWIND) set(LIBUNWIND_OBJECTS $) endif(NOT CLR_CMAKE_USE_SYSTEM_LIBUNWIND) @@ -226,6 +233,29 @@ add_library(coreclrpal ${LIBUNWIND_OBJECTS} ) +# Build separate pal library for DAC (addition to regular pal library) +if(CLR_CMAKE_TARGET_OSX) + set(LIBUNWIND_DAC_OBJECTS $) + + add_library(coreclrpal_dac STATIC + exception/remote-unwind.cpp + ${LIBUNWIND_DAC_OBJECTS} + ) + + target_compile_definitions(coreclrpal_dac PUBLIC + "-D_XOPEN_SOURCE" + "-DUNW_REMOTE_ONLY" + ) + + target_include_directories(coreclrpal_dac PUBLIC + ${CMAKE_CURRENT_SOURCE_DIR}/libunwind/include + ${CMAKE_CURRENT_SOURCE_DIR}/libunwind/include/tdep + ${CMAKE_CURRENT_BINARY_DIR} + ${CMAKE_CURRENT_BINARY_DIR}/libunwind/include + ${CMAKE_CURRENT_BINARY_DIR}/libunwind/include/tdep + ) +endif(CLR_CMAKE_TARGET_OSX) + # There is only one function exported in 'tracepointprovider.cpp' namely 'PAL_InitializeTracing', # which is guarded with '#if defined(__linux__)'. On macOS, Xcode issues the following warning: # @@ -309,6 +339,5 @@ if(FEATURE_EVENT_TRACE) add_subdirectory(eventprovider) endif(FEATURE_EVENT_TRACE) - # Install the static PAL library for VS _install (TARGETS coreclrpal DESTINATION lib) diff --git a/src/coreclr/src/pal/src/exception/compact_unwind_encoding.h b/src/coreclr/src/pal/src/exception/compact_unwind_encoding.h new file mode 100644 index 0000000000000..3e9b0546e9733 --- /dev/null +++ b/src/coreclr/src/pal/src/exception/compact_unwind_encoding.h @@ -0,0 +1,474 @@ +//===------------------ mach-o/compact_unwind_encoding.h ------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +// +// Darwin's alternative to dwarf based unwind encodings. +// +//===----------------------------------------------------------------------===// + + +#ifndef __COMPACT_UNWIND_ENCODING__ +#define __COMPACT_UNWIND_ENCODING__ + +#include + +// +// Compilers can emit standard Dwarf FDEs in the __TEXT,__eh_frame section +// of object files. Or compilers can emit compact unwind information in +// the __LD,__compact_unwind section. +// +// When the linker creates a final linked image, it will create a +// __TEXT,__unwind_info section. This section is a small and fast way for the +// runtime to access unwind info for any given function. If the compiler +// emitted compact unwind info for the function, that compact unwind info will +// be encoded in the __TEXT,__unwind_info section. If the compiler emitted +// dwarf unwind info, the __TEXT,__unwind_info section will contain the offset +// of the FDE in the __TEXT,__eh_frame section in the final linked image. +// +// Note: Previously, the linker would transform some dwarf unwind infos into +// compact unwind info. But that is fragile and no longer done. + + +// +// The compact unwind endoding is a 32-bit value which encoded in an +// architecture specific way, which registers to restore from where, and how +// to unwind out of the function. +// +typedef uint32_t compact_unwind_encoding_t; + + +// architecture independent bits +enum { + UNWIND_IS_NOT_FUNCTION_START = 0x80000000, + UNWIND_HAS_LSDA = 0x40000000, + UNWIND_PERSONALITY_MASK = 0x30000000, +}; + + + + +// +// x86 +// +// 1-bit: start +// 1-bit: has lsda +// 2-bit: personality index +// +// 4-bits: 0=old, 1=ebp based, 2=stack-imm, 3=stack-ind, 4=dwarf +// ebp based: +// 15-bits (5*3-bits per reg) register permutation +// 8-bits for stack offset +// frameless: +// 8-bits stack size +// 3-bits stack adjust +// 3-bits register count +// 10-bits register permutation +// +enum { + UNWIND_X86_MODE_MASK = 0x0F000000, + UNWIND_X86_MODE_EBP_FRAME = 0x01000000, + UNWIND_X86_MODE_STACK_IMMD = 0x02000000, + UNWIND_X86_MODE_STACK_IND = 0x03000000, + UNWIND_X86_MODE_DWARF = 0x04000000, + + UNWIND_X86_EBP_FRAME_REGISTERS = 0x00007FFF, + UNWIND_X86_EBP_FRAME_OFFSET = 0x00FF0000, + + UNWIND_X86_FRAMELESS_STACK_SIZE = 0x00FF0000, + UNWIND_X86_FRAMELESS_STACK_ADJUST = 0x0000E000, + UNWIND_X86_FRAMELESS_STACK_REG_COUNT = 0x00001C00, + UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF, + + UNWIND_X86_DWARF_SECTION_OFFSET = 0x00FFFFFF, +}; + +enum { + UNWIND_X86_REG_NONE = 0, + UNWIND_X86_REG_EBX = 1, + UNWIND_X86_REG_ECX = 2, + UNWIND_X86_REG_EDX = 3, + UNWIND_X86_REG_EDI = 4, + UNWIND_X86_REG_ESI = 5, + UNWIND_X86_REG_EBP = 6, +}; + +// +// For x86 there are four modes for the compact unwind encoding: +// UNWIND_X86_MODE_EBP_FRAME: +// EBP based frame where EBP is push on stack immediately after return address, +// then ESP is moved to EBP. Thus, to unwind ESP is restored with the current +// EPB value, then EBP is restored by popping off the stack, and the return +// is done by popping the stack once more into the pc. +// All non-volatile registers that need to be restored must have been saved +// in a small range in the stack that starts EBP-4 to EBP-1020. The offset/4 +// is encoded in the UNWIND_X86_EBP_FRAME_OFFSET bits. The registers saved +// are encoded in the UNWIND_X86_EBP_FRAME_REGISTERS bits as five 3-bit entries. +// Each entry contains which register to restore. +// UNWIND_X86_MODE_STACK_IMMD: +// A "frameless" (EBP not used as frame pointer) function with a small +// constant stack size. To return, a constant (encoded in the compact +// unwind encoding) is added to the ESP. Then the return is done by +// popping the stack into the pc. +// All non-volatile registers that need to be restored must have been saved +// on the stack immediately after the return address. The stack_size/4 is +// encoded in the UNWIND_X86_FRAMELESS_STACK_SIZE (max stack size is 1024). +// The number of registers saved is encoded in UNWIND_X86_FRAMELESS_STACK_REG_COUNT. +// UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION constains which registers were +// saved and their order. +// UNWIND_X86_MODE_STACK_IND: +// A "frameless" (EBP not used as frame pointer) function large constant +// stack size. This case is like the previous, except the stack size is too +// large to encode in the compact unwind encoding. Instead it requires that +// the function contains "subl $nnnnnnnn,ESP" in its prolog. The compact +// encoding contains the offset to the nnnnnnnn value in the function in +// UNWIND_X86_FRAMELESS_STACK_SIZE. +// UNWIND_X86_MODE_DWARF: +// No compact unwind encoding is available. Instead the low 24-bits of the +// compact encoding is the offset of the dwarf FDE in the __eh_frame section. +// This mode is never used in object files. It is only generated by the +// linker in final linked images which have only dwarf unwind info for a +// function. +// +// The following is the algorithm used to create the permutation encoding used +// with frameless stacks. It is passed the number of registers to be saved and +// an array of the register numbers saved. +// +//uint32_t permute_encode(uint32_t registerCount, const uint32_t registers[6]) +//{ +// uint32_t renumregs[6]; +// for (int i=6-registerCount; i < 6; ++i) { +// int countless = 0; +// for (int j=6-registerCount; j < i; ++j) { +// if ( registers[j] < registers[i] ) +// ++countless; +// } +// renumregs[i] = registers[i] - countless -1; +// } +// uint32_t permutationEncoding = 0; +// switch ( registerCount ) { +// case 6: +// permutationEncoding |= (120*renumregs[0] + 24*renumregs[1] +// + 6*renumregs[2] + 2*renumregs[3] +// + renumregs[4]); +// break; +// case 5: +// permutationEncoding |= (120*renumregs[1] + 24*renumregs[2] +// + 6*renumregs[3] + 2*renumregs[4] +// + renumregs[5]); +// break; +// case 4: +// permutationEncoding |= (60*renumregs[2] + 12*renumregs[3] +// + 3*renumregs[4] + renumregs[5]); +// break; +// case 3: +// permutationEncoding |= (20*renumregs[3] + 4*renumregs[4] +// + renumregs[5]); +// break; +// case 2: +// permutationEncoding |= (5*renumregs[4] + renumregs[5]); +// break; +// case 1: +// permutationEncoding |= (renumregs[5]); +// break; +// } +// return permutationEncoding; +//} +// + + + + +// +// x86_64 +// +// 1-bit: start +// 1-bit: has lsda +// 2-bit: personality index +// +// 4-bits: 0=old, 1=rbp based, 2=stack-imm, 3=stack-ind, 4=dwarf +// rbp based: +// 15-bits (5*3-bits per reg) register permutation +// 8-bits for stack offset +// frameless: +// 8-bits stack size +// 3-bits stack adjust +// 3-bits register count +// 10-bits register permutation +// +enum { + UNWIND_X86_64_MODE_MASK = 0x0F000000, + UNWIND_X86_64_MODE_RBP_FRAME = 0x01000000, + UNWIND_X86_64_MODE_STACK_IMMD = 0x02000000, + UNWIND_X86_64_MODE_STACK_IND = 0x03000000, + UNWIND_X86_64_MODE_DWARF = 0x04000000, + + UNWIND_X86_64_RBP_FRAME_REGISTERS = 0x00007FFF, + UNWIND_X86_64_RBP_FRAME_OFFSET = 0x00FF0000, + + UNWIND_X86_64_FRAMELESS_STACK_SIZE = 0x00FF0000, + UNWIND_X86_64_FRAMELESS_STACK_ADJUST = 0x0000E000, + UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT = 0x00001C00, + UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF, + + UNWIND_X86_64_DWARF_SECTION_OFFSET = 0x00FFFFFF, +}; + +enum { + UNWIND_X86_64_REG_NONE = 0, + UNWIND_X86_64_REG_RBX = 1, + UNWIND_X86_64_REG_R12 = 2, + UNWIND_X86_64_REG_R13 = 3, + UNWIND_X86_64_REG_R14 = 4, + UNWIND_X86_64_REG_R15 = 5, + UNWIND_X86_64_REG_RBP = 6, +}; +// +// For x86_64 there are four modes for the compact unwind encoding: +// UNWIND_X86_64_MODE_RBP_FRAME: +// RBP based frame where RBP is push on stack immediately after return address, +// then RSP is moved to RBP. Thus, to unwind RSP is restored with the current +// EPB value, then RBP is restored by popping off the stack, and the return +// is done by popping the stack once more into the pc. +// All non-volatile registers that need to be restored must have been saved +// in a small range in the stack that starts RBP-8 to RBP-1020. The offset/4 +// is encoded in the UNWIND_X86_64_RBP_FRAME_OFFSET bits. The registers saved +// are encoded in the UNWIND_X86_64_RBP_FRAME_REGISTERS bits as five 3-bit entries. +// Each entry contains which register to restore. +// UNWIND_X86_64_MODE_STACK_IMMD: +// A "frameless" (RBP not used as frame pointer) function with a small +// constant stack size. To return, a constant (encoded in the compact +// unwind encoding) is added to the RSP. Then the return is done by +// popping the stack into the pc. +// All non-volatile registers that need to be restored must have been saved +// on the stack immediately after the return address. The stack_size/4 is +// encoded in the UNWIND_X86_64_FRAMELESS_STACK_SIZE (max stack size is 1024). +// The number of registers saved is encoded in UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT. +// UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION constains which registers were +// saved and their order. +// UNWIND_X86_64_MODE_STACK_IND: +// A "frameless" (RBP not used as frame pointer) function large constant +// stack size. This case is like the previous, except the stack size is too +// large to encode in the compact unwind encoding. Instead it requires that +// the function contains "subq $nnnnnnnn,RSP" in its prolog. The compact +// encoding contains the offset to the nnnnnnnn value in the function in +// UNWIND_X86_64_FRAMELESS_STACK_SIZE. +// UNWIND_X86_64_MODE_DWARF: +// No compact unwind encoding is available. Instead the low 24-bits of the +// compact encoding is the offset of the dwarf FDE in the __eh_frame section. +// This mode is never used in object files. It is only generated by the +// linker in final linked images which have only dwarf unwind info for a +// function. +// + + +// ARM64 +// +// 1-bit: start +// 1-bit: has lsda +// 2-bit: personality index +// +// 4-bits: 4=frame-based, 3=dwarf, 2=frameless +// frameless: +// 12-bits of stack size +// frame-based: +// 4-bits D reg pairs saved +// 5-bits X reg pairs saved +// dwarf: +// 24-bits offset of dwarf FDE in __eh_frame section +// +enum { + UNWIND_ARM64_MODE_MASK = 0x0F000000, + UNWIND_ARM64_MODE_FRAMELESS = 0x02000000, + UNWIND_ARM64_MODE_DWARF = 0x03000000, + UNWIND_ARM64_MODE_FRAME = 0x04000000, + + UNWIND_ARM64_FRAME_X19_X20_PAIR = 0x00000001, + UNWIND_ARM64_FRAME_X21_X22_PAIR = 0x00000002, + UNWIND_ARM64_FRAME_X23_X24_PAIR = 0x00000004, + UNWIND_ARM64_FRAME_X25_X26_PAIR = 0x00000008, + UNWIND_ARM64_FRAME_X27_X28_PAIR = 0x00000010, + UNWIND_ARM64_FRAME_D8_D9_PAIR = 0x00000100, + UNWIND_ARM64_FRAME_D10_D11_PAIR = 0x00000200, + UNWIND_ARM64_FRAME_D12_D13_PAIR = 0x00000400, + UNWIND_ARM64_FRAME_D14_D15_PAIR = 0x00000800, + + UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK = 0x00FFF000, + UNWIND_ARM64_DWARF_SECTION_OFFSET = 0x00FFFFFF, +}; +// For arm64 there are three modes for the compact unwind encoding: +// UNWIND_ARM64_MODE_FRAME: +// This is a standard arm64 prolog where FP/LR are immediately pushed on the +// stack, then SP is copied to FP. If there are any non-volatile registers +// saved, then are copied into the stack frame in pairs in a contiguous +// range right below the saved FP/LR pair. Any subset of the five X pairs +// and four D pairs can be saved, but the memory layout must be in register +// number order. +// UNWIND_ARM64_MODE_FRAMELESS: +// A "frameless" leaf function, where FP/LR are not saved. The return address +// remains in LR throughout the function. If any non-volatile registers +// are saved, they must be pushed onto the stack before any stack space is +// allocated for local variables. The stack sized (including any saved +// non-volatile registers) divided by 16 is encoded in the bits +// UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK. +// UNWIND_ARM64_MODE_DWARF: +// No compact unwind encoding is available. Instead the low 24-bits of the +// compact encoding is the offset of the dwarf FDE in the __eh_frame section. +// This mode is never used in object files. It is only generated by the +// linker in final linked images which have only dwarf unwind info for a +// function. +// + + + + + +//////////////////////////////////////////////////////////////////////////////// +// +// Relocatable Object Files: __LD,__compact_unwind +// +//////////////////////////////////////////////////////////////////////////////// + +// +// A compiler can generated compact unwind information for a function by adding +// a "row" to the __LD,__compact_unwind section. This section has the +// S_ATTR_DEBUG bit set, so the section will be ignored by older linkers. +// It is removed by the new linker, so never ends up in final executables. +// This section is a table, initially with one row per function (that needs +// unwind info). The table columns and some conceptual entries are: +// +// range-start pointer to start of function/range +// range-length +// compact-unwind-encoding 32-bit encoding +// personality-function or zero if no personality function +// lsda or zero if no LSDA data +// +// The length and encoding fields are 32-bits. The other are all pointer sized. +// +// In x86_64 assembly, these entry would look like: +// +// .section __LD,__compact_unwind,regular,debug +// +// #compact unwind for _foo +// .quad _foo +// .set L1,LfooEnd-_foo +// .long L1 +// .long 0x01010001 +// .quad 0 +// .quad 0 +// +// #compact unwind for _bar +// .quad _bar +// .set L2,LbarEnd-_bar +// .long L2 +// .long 0x01020011 +// .quad __gxx_personality +// .quad except_tab1 +// +// +// Notes: There is no need for any labels in the the __compact_unwind section. +// The use of the .set directive is to force the evaluation of the +// range-length at assembly time, instead of generating relocations. +// +// To support future compiler optimizations where which non-volatile registers +// are saved changes within a function (e.g. delay saving non-volatiles until +// necessary), there can by multiple lines in the __compact_unwind table for one +// function, each with a different (non-overlapping) range and each with +// different compact unwind encodings that correspond to the non-volatiles +// saved at that range of the function. +// +// If a particular function is so wacky that there is no compact unwind way +// to encode it, then the compiler can emit traditional dwarf unwind info. +// The runtime will use which ever is available. +// +// Runtime support for compact unwind encodings are only available on 10.6 +// and later. So, the compiler should not generate it when targeting pre-10.6. + + + + +//////////////////////////////////////////////////////////////////////////////// +// +// Final Linked Images: __TEXT,__unwind_info +// +//////////////////////////////////////////////////////////////////////////////// + +// +// The __TEXT,__unwind_info section is laid out for an efficient two level lookup. +// The header of the section contains a coarse index that maps function address +// to the page (4096 byte block) containing the unwind info for that function. +// + +#define UNWIND_SECTION_VERSION 1 +struct unwind_info_section_header +{ + uint32_t version; // UNWIND_SECTION_VERSION + uint32_t commonEncodingsArraySectionOffset; + uint32_t commonEncodingsArrayCount; + uint32_t personalityArraySectionOffset; + uint32_t personalityArrayCount; + uint32_t indexSectionOffset; + uint32_t indexCount; + // compact_unwind_encoding_t[] + // uintptr_t personalities[] + // unwind_info_section_header_index_entry[] + // unwind_info_section_header_lsda_index_entry[] +}; + +struct unwind_info_section_header_index_entry +{ + uint32_t functionOffset; + uint32_t secondLevelPagesSectionOffset; // section offset to start of regular or compress page + uint32_t lsdaIndexArraySectionOffset; // section offset to start of lsda_index array for this range +}; + +struct unwind_info_section_header_lsda_index_entry +{ + uint32_t functionOffset; + uint32_t lsdaOffset; +}; + +// +// There are two kinds of second level index pages: regular and compressed. +// A compressed page can hold up to 1021 entries, but it cannot be used +// if too many different encoding types are used. The regular page holds +// 511 entries. +// + +struct unwind_info_regular_second_level_entry +{ + uint32_t functionOffset; + compact_unwind_encoding_t encoding; +}; + +#define UNWIND_SECOND_LEVEL_REGULAR 2 +struct unwind_info_regular_second_level_page_header +{ + uint32_t kind; // UNWIND_SECOND_LEVEL_REGULAR + uint16_t entryPageOffset; + uint16_t entryCount; + // entry array +}; + +#define UNWIND_SECOND_LEVEL_COMPRESSED 3 +struct unwind_info_compressed_second_level_page_header +{ + uint32_t kind; // UNWIND_SECOND_LEVEL_COMPRESSED + uint16_t entryPageOffset; + uint16_t entryCount; + uint16_t encodingsPageOffset; + uint16_t encodingsCount; + // 32-bit entry array + // encodings array +}; + +#define UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET(entry) (entry & 0x00FFFFFF) +#define UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX(entry) ((entry >> 24) & 0xFF) + + + +#endif + diff --git a/src/coreclr/src/pal/src/exception/remote-unwind.cpp b/src/coreclr/src/pal/src/exception/remote-unwind.cpp index 7adfb57803bc2..8d2032fef26c0 100644 --- a/src/coreclr/src/pal/src/exception/remote-unwind.cpp +++ b/src/coreclr/src/pal/src/exception/remote-unwind.cpp @@ -39,6 +39,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --*/ #ifdef HOST_UNIX + #include "config.h" #include "pal/palinternal.h" #include "pal/dbgmsg.h" @@ -50,6 +51,14 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #include #include +#ifdef __APPLE__ +#include +#include +#include +#include +#include "compact_unwind_encoding.h" +#endif + // Sub-headers included from the libunwind.h contain an empty struct // and clang issues a warning. Until the libunwind is fixed, disable // the warning. @@ -64,6 +73,8 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. SET_DEFAULT_DEBUG_CHANNEL(EXCEPT); +#define TRACE_VERBOSE + #else // HOST_UNIX #include @@ -83,7 +94,6 @@ typedef BOOL(*UnwindReadMemoryCallback)(PVOID address, PVOID buffer, SIZE_T size #undef ERROR #define ERROR(x, ...) - #ifdef TARGET_64BIT #define ElfW(foo) Elf64_ ## foo #else // TARGET_64BIT @@ -125,7 +135,6 @@ typedef BOOL(*UnwindReadMemoryCallback)(PVOID address, PVOID buffer, SIZE_T size #define Nhdr ElfW(Nhdr) #define Dyn ElfW(Dyn) - extern "C" int _OOP_find_proc_info( unw_word_t start_ip, @@ -140,10 +149,9 @@ _OOP_find_proc_info( int need_unwind_info, void *arg); -extern void GetContextPointers( - unw_cursor_t *cursor, - unw_context_t *unwContext, - KNONVOLATILE_CONTEXT_POINTERS *contextPointers); +#endif // HAVE_UNW_GET_ACCESSORS + +#if defined(HAVE_UNW_GET_ACCESSORS) || defined(__APPLE__) typedef struct _libunwindInfo { @@ -152,6 +160,1256 @@ typedef struct _libunwindInfo UnwindReadMemoryCallback ReadMemory; } libunwindInfo; +#ifdef __APPLE__ + +#define EXTRACT_BITS(value, mask) ((value >> __builtin_ctz(mask)) & (((1 << __builtin_popcount(mask))) - 1)) + +// DWARF Pointer-Encoding (PEs). +// +// Pointer-Encodings were invented for the GCC exception-handling +// support for C++, but they represent a rather generic way of +// describing the format in which an address/pointer is stored. +// The Pointer-Encoding format is partially documented in Linux Base +// Spec v1.3 (http://www.linuxbase.org/spec/). + +// These defines and struct (dwarf_cie_info) were copied from libunwind's dwarf.h + +#define DW_EH_PE_FORMAT_MASK 0x0f // format of the encoded value +#define DW_EH_PE_APPL_MASK 0x70 // how the value is to be applied +#define DW_EH_PE_indirect 0x80 // Flag bit. If set, the resulting pointer is the + // address of the word that contains the final address +// Pointer-encoding formats +#define DW_EH_PE_omit 0xff +#define DW_EH_PE_ptr 0x00 // pointer-sized unsigned value +#define DW_EH_PE_uleb128 0x01 // unsigned LE base-128 value +#define DW_EH_PE_udata2 0x02 // unsigned 16-bit value +#define DW_EH_PE_udata4 0x03 // unsigned 32-bit value +#define DW_EH_PE_udata8 0x04 // unsigned 64-bit value +#define DW_EH_PE_sleb128 0x09 // signed LE base-128 value +#define DW_EH_PE_sdata2 0x0a // signed 16-bit value +#define DW_EH_PE_sdata4 0x0b // signed 32-bit value +#define DW_EH_PE_sdata8 0x0c // signed 64-bit value + +// Pointer-encoding application +#define DW_EH_PE_absptr 0x00 // absolute value +#define DW_EH_PE_pcrel 0x10 // rel. to addr. of encoded value +#define DW_EH_PE_textrel 0x20 // text-relative (GCC-specific???) +#define DW_EH_PE_datarel 0x30 // data-relative + +// The following are not documented by LSB v1.3, yet they are used by +// GCC, presumably they aren't documented by LSB since they aren't +// used on Linux +#define DW_EH_PE_funcrel 0x40 // start-of-procedure-relative +#define DW_EH_PE_aligned 0x50 // aligned pointer + +#define DWARF_CIE_VERSION 3 // GCC emits version 1??? + +// DWARF unwind info +typedef struct dwarf_cie_info +{ + unw_word_t cie_instr_start; // start addr. of CIE "initial_instructions" + unw_word_t cie_instr_end; // end addr. of CIE "initial_instructions" + unw_word_t fde_instr_start; // start addr. of FDE "instructions" + unw_word_t fde_instr_end; // end addr. of FDE "instructions" + unw_word_t code_align; // code-alignment factor + unw_word_t data_align; // data-alignment factor + unw_word_t ret_addr_column; // column of return-address register + unw_word_t handler; // address of personality-routine + uint16_t abi; + uint16_t tag; + uint8_t fde_encoding; + uint8_t lsda_encoding; + unsigned int sized_augmentation : 1; + unsigned int have_abi_marker : 1; + unsigned int signal_frame : 1; +} dwarf_cie_info_t; + +static bool +ReadValue8( + const libunwindInfo* info, + unw_word_t* addr, + uint8_t* valp) +{ + uint8_t value; + if (!info->ReadMemory((PVOID)*addr, &value, sizeof(value))) { + return false; + } + *addr += sizeof(value); + *valp = value; + return true; +} + +static bool +ReadValue16( + const libunwindInfo* info, + unw_word_t* addr, + uint16_t* valp) +{ + uint16_t value; + if (!info->ReadMemory((PVOID)*addr, &value, sizeof(value))) { + return false; + } + *addr += sizeof(value); + *valp = VAL16(value); + return true; +} + +static bool +ReadValue32( + const libunwindInfo* info, + unw_word_t* addr, + uint32_t* valp) +{ + uint32_t value; + if (!info->ReadMemory((PVOID)*addr, &value, sizeof(value))) { + return false; + } + *addr += sizeof(value); + *valp = VAL32(value); + return true; +} + +static bool +ReadValue64( + const libunwindInfo* info, + unw_word_t* addr, + uint64_t* valp) +{ + uint64_t value; + if (!info->ReadMemory((PVOID)*addr, &value, sizeof(value))) { + return false; + } + *addr += sizeof(value); + *valp = VAL64(value); + return true; +} + +static bool +ReadPointer( + const libunwindInfo* info, + unw_word_t* addr, + unw_word_t* valp) +{ +#ifdef TARGET_64BIT + uint64_t val64; + if (ReadValue64(info, addr, &val64)) { + *valp = val64; + return true; + } +#else + uint32_t val32; + if (ReadValue32(info, addr, &val32)) { + *valp = val32; + return true; + } +#endif + return false; +} + +// Read a unsigned "little-endian base 128" value. See Chapter 7.6 of DWARF spec v3. +static bool +ReadULEB128( + const libunwindInfo* info, + unw_word_t* addr, + unw_word_t* valp) +{ + unw_word_t value = 0; + unsigned char byte; + int shift = 0; + + do + { + if (!ReadValue8(info, addr, &byte)) { + return false; + } + value |= ((unw_word_t)byte & 0x7f) << shift; + shift += 7; + } while (byte & 0x80); + + *valp = value; + return true; +} + +// Read a signed "little-endian base 128" value. See Chapter 7.6 of DWARF spec v3. +static bool +ReadSLEB128( + const libunwindInfo* info, + unw_word_t* addr, + unw_word_t* valp) +{ + unw_word_t value = 0; + unsigned char byte; + int shift = 0; + + do + { + if (!ReadValue8(info, addr, &byte)) { + return false; + } + value |= ((unw_word_t)byte & 0x7f) << shift; + shift += 7; + } while (byte & 0x80); + + if (((size_t)shift < (8 * sizeof(unw_word_t))) && ((byte & 0x40) != 0)) { + value |= ((unw_word_t)-1) << shift; + } + + *valp = value; + return true; +} + +static bool +ReadEncodedPointer( + const libunwindInfo* info, + unw_word_t* addr, + unsigned char encoding, + unw_word_t funcRel, + unw_word_t* valp) +{ + unw_word_t initialAddr = *addr; + uint16_t value16; + uint32_t value32; + uint64_t value64; + unw_word_t value; + + if (encoding == DW_EH_PE_omit) + { + *valp = 0; + return true; + } + else if (encoding == DW_EH_PE_aligned) + { + int size = sizeof(unw_word_t); + *addr = (initialAddr + size - 1) & -size; + return ReadPointer(info, addr, valp); + } + + switch (encoding & DW_EH_PE_FORMAT_MASK) + { + case DW_EH_PE_ptr: + if (!ReadPointer(info, addr, &value)) { + return false; + } + break; + + case DW_EH_PE_uleb128: + if (!ReadULEB128(info, addr, &value)) { + return false; + } + break; + + case DW_EH_PE_sleb128: + if (!ReadSLEB128(info, addr, &value)) { + return false; + } + break; + + case DW_EH_PE_udata2: + if (!ReadValue16(info, addr, &value16)) { + return false; + } + value = value16; + break; + + case DW_EH_PE_udata4: + if (!ReadValue32(info, addr, &value32)) { + return false; + } + value = value32; + break; + + case DW_EH_PE_udata8: + if (!ReadValue64(info, addr, &value64)) { + return false; + } + value = value64; + break; + + case DW_EH_PE_sdata2: + if (!ReadValue16(info, addr, &value16)) { + return false; + } + value = (int16_t)value16; + break; + + case DW_EH_PE_sdata4: + if (!ReadValue32(info, addr, &value32)) { + return false; + } + value = (int32_t)value32; + break; + + case DW_EH_PE_sdata8: + if (!ReadValue64(info, addr, &value64)) { + return false; + } + value = (int64_t)value64; + break; + + default: + ASSERT("ReadEncodedPointer: invalid encoding format %x\n", encoding); + return false; + } + + // 0 is a special value and always absolute + if (value == 0) { + *valp = 0; + return true; + } + + switch (encoding & DW_EH_PE_APPL_MASK) + { + case DW_EH_PE_absptr: + break; + + case DW_EH_PE_pcrel: + value += initialAddr; + break; + + case DW_EH_PE_funcrel: + _ASSERTE(funcRel != UINTPTR_MAX); + value += funcRel; + break; + + case DW_EH_PE_textrel: + case DW_EH_PE_datarel: + default: + ASSERT("ReadEncodedPointer: invalid application type %x\n", encoding); + return false; + } + + if (encoding & DW_EH_PE_indirect) + { + unw_word_t indirect_addr = value; + if (!ReadPointer(info, &indirect_addr, &value)) { + return false; + } + } + + *valp = value; + return true; +} + +template +static bool +BinarySearchEntries( + const libunwindInfo* info, + int32_t ip, + unw_word_t tableAddr, + size_t tableCount, + T* entry, + T* entryNext, + bool compressed, + bool* found) +{ + size_t low, high, mid; + unw_word_t addr; + int32_t functionOffset; + + *found = false; + + static_assert_no_msg(sizeof(T) >= sizeof(uint32_t)); + + static_assert_no_msg(offsetof(unwind_info_section_header_index_entry, functionOffset) == 0); + static_assert_no_msg(sizeof(unwind_info_section_header_index_entry::functionOffset) == sizeof(uint32_t)); + + static_assert_no_msg(offsetof(unwind_info_regular_second_level_entry, functionOffset) == 0); + static_assert_no_msg(sizeof(unwind_info_regular_second_level_entry::functionOffset) == sizeof(uint32_t)); + + static_assert_no_msg(offsetof(unwind_info_section_header_lsda_index_entry, functionOffset) == 0); + static_assert_no_msg(sizeof(unwind_info_section_header_lsda_index_entry::functionOffset) == sizeof(uint32_t)); + + // Do a binary search on table + for (low = 0, high = tableCount; low < high;) + { + mid = (low + high) / 2; + + // Assumes that the first uint32_t in T is the offset to compare + addr = tableAddr + (mid * sizeof(T)); + if (!ReadValue32(info, &addr, (uint32_t*)&functionOffset)) { + return false; + } + if (compressed) { + functionOffset = UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET(functionOffset); + } + if (ip < functionOffset) { + high = mid; + } + else { + low = mid + 1; + } + } + + if (high > 0) + { + *found = true; + + addr = tableAddr + (high * sizeof(T)); + if (!info->ReadMemory((PVOID)addr, entryNext, sizeof(T))) { + return false; + } + } + else + { + // When the ip isn't found return the last entry in the table + high = tableCount; + + // No next entry + memset(entryNext, 0, sizeof(T)); + } + + addr = tableAddr + ((high - 1) * sizeof(T)); + if (!info->ReadMemory((PVOID)addr, entry, sizeof(T))) { + return false; + } + + return true; +} + +static bool +ParseCie( + const libunwindInfo* info, + unw_word_t addr, + dwarf_cie_info_t* dci) +{ + uint8_t ch, version, fdeEncoding, handlerEncoding; + unw_word_t cieLength, cieEndAddr; + uint32_t value32; + uint64_t value64; + + memset(dci, 0, sizeof(dwarf_cie_info_t)); + + // Pick appropriate default for FDE-encoding. DWARF spec says + // start-IP (initial_location) and the code-size (address_range) are + // "address-unit sized constants". The `R' augmentation can be used + // to override this, but by default, we pick an address-sized unit + // for fde_encoding. +#if TARGET_64BIT + fdeEncoding = DW_EH_PE_udata8; +#else + fdeEncoding = DW_EH_PE_udata4; +#endif + + dci->lsda_encoding = DW_EH_PE_omit; + dci->handler = 0; + + if (!ReadValue32(info, &addr, &value32)) { + return false; + } + + if (value32 != 0xffffffff) + { + // The CIE is in the 32-bit DWARF format + uint32_t cieId; + + // DWARF says CIE id should be 0xffffffff, but in .eh_frame, it's 0 + const uint32_t expectedId = 0; + + cieLength = value32; + cieEndAddr = addr + cieLength; + + if (!ReadValue32(info, &addr, &cieId)) { + return false; + } + if (cieId != expectedId) { + ASSERT("ParseCie: unexpected cie id %x\n", cieId); + return false; + } + } + else + { + // The CIE is in the 64-bit DWARF format + uint64_t cieId; + + // DWARF says CIE id should be 0xffffffffffffffff, but in .eh_frame, it's 0 + const uint64_t expectedId = 0; + + if (!ReadValue64(info, &addr, &value64)) { + return false; + } + cieLength = value64; + cieEndAddr = addr + cieLength; + + if (!ReadValue64(info, &addr, &cieId)) { + return false; + } + if (cieId != expectedId) { + ASSERT("ParseCie: unexpected cie id %lx\n", cieId); + return false; + } + } + dci->cie_instr_end = cieEndAddr; + + if (!ReadValue8(info, &addr, &version)) { + return false; + } + if (version != 1 && version != DWARF_CIE_VERSION) { + ASSERT("ParseCie: invalid cie version %x\n", version); + return false; + } + + // Read the augmentation string + uint8_t augmentationString[8]; + memset(augmentationString, 0, sizeof(augmentationString)); + + for (size_t i = 0; i < sizeof(augmentationString); i++) + { + if (!ReadValue8(info, &addr, &ch)) { + return false; + } + if (ch == 0) { + break; + } + augmentationString[i] = ch; + } + + // Read the code and data alignment + if (!ReadULEB128(info, &addr, &dci->code_align)) { + return false; + } + if (!ReadSLEB128(info, &addr, &dci->data_align)) { + return false; + } + + // Read the return-address column either as a u8 or as a uleb128 + if (version == 1) + { + if (!ReadValue8(info, &addr, &ch)) { + return false; + } + dci->ret_addr_column = ch; + } + else + { + if (!ReadULEB128(info, &addr, &dci->ret_addr_column)) { + return false; + } + } + + // Parse the augmentation string + for (size_t i = 0; i < sizeof(augmentationString); i++) + { + bool done = false; + unw_word_t augmentationSize; + + switch (augmentationString[i]) + { + case '\0': + done = true; + break; + + case 'z': + dci->sized_augmentation = 1; + if (!ReadULEB128(info, &addr, &augmentationSize)) { + return false; + } + break; + + case 'L': + // read the LSDA pointer-encoding format + if (!ReadValue8(info, &addr, &ch)) { + return false; + } + dci->lsda_encoding = ch; + break; + + case 'R': + // read the FDE pointer-encoding format + if (!ReadValue8(info, &addr, &fdeEncoding)) { + return false; + } + break; + + case 'P': + // read the personality-routine pointer-encoding format + if (!ReadValue8(info, &addr, &handlerEncoding)) { + return false; + } + if (!ReadEncodedPointer(info, &addr, handlerEncoding, UINTPTR_MAX, &dci->handler)) { + return false; + } + break; + + case 'S': + // This is a signal frame + dci->signal_frame = 1; + + // Temporarily set it to one so dwarf_parse_fde() knows that + // it should fetch the actual ABI/TAG pair from the FDE. + dci->have_abi_marker = 1; + break; + + default: + if (dci->sized_augmentation) { + // If we have the size of the augmentation body, we can skip + // over the parts that we don't understand, so we're OK + done = true; + break; + } + ASSERT("ParseCie: unexpected argumentation string '%s'\n", augmentationString[i]); + return false; + } + + if (done) { + break; + } + } + dci->fde_encoding = fdeEncoding; + dci->cie_instr_start = addr; + return true; +} + +static bool +ExtractFde( + const libunwindInfo* info, + unw_word_t* addr, + unw_word_t* fdeEndAddr, + unw_word_t* ipStart, + unw_word_t* ipEnd, + dwarf_cie_info_t* dci) +{ + unw_word_t cieOffsetAddr, cieAddr; + uint32_t value32; + uint64_t value64; + + *fdeEndAddr = 0; + *ipStart = UINT64_MAX; + *ipEnd = 0; + + if (!ReadValue32(info, addr, &value32)) { + return false; + } + if (value32 != 0xffffffff) + { + int32_t cieOffset = 0; + + // In some configurations, an FDE with a 0 length indicates the end of the FDE-table + if (value32 == 0) { + return false; + } + // the FDE is in the 32-bit DWARF format */ + *fdeEndAddr = *addr + value32; + cieOffsetAddr = *addr; + + if (!ReadValue32(info, addr, (uint32_t*)&cieOffset)) { + return false; + } + // Ignore CIEs (happens during linear search) + if (cieOffset == 0) { + return true; + } + // DWARF says that the CIE_pointer in the FDE is a .debug_frame-relative offset, + // but the GCC-generated .eh_frame sections instead store a "pcrelative" offset, + // which is just as fine as it's self-contained + cieAddr = cieOffsetAddr - cieOffset; + } + else + { + int64_t cieOffset = 0; + + // the FDE is in the 64-bit DWARF format */ + if (!ReadValue64(info, addr, (uint64_t*)&value64)) { + return false; + } + *fdeEndAddr = *addr + value64; + cieOffsetAddr = *addr; + + if (!ReadValue64(info, addr, (uint64_t*)&cieOffset)) { + return false; + } + // Ignore CIEs (happens during linear search) + if (cieOffset == 0) { + return true; + } + // DWARF says that the CIE_pointer in the FDE is a .debug_frame-relative offset, + // but the GCC-generated .eh_frame sections instead store a "pcrelative" offset, + // which is just as fine as it's self-contained + cieAddr = (unw_word_t)((uint64_t)cieOffsetAddr - cieOffset); + } + + if (!ParseCie(info, cieAddr, dci)) { + return false; + } + + unw_word_t start, range; + if (!ReadEncodedPointer(info, addr, dci->fde_encoding, UINTPTR_MAX, &start)) { + return false; + } + + // IP-range has same encoding as FDE pointers, except that it's always an absolute value + uint8_t ipRangeEncoding = dci->fde_encoding & DW_EH_PE_FORMAT_MASK; + if (!ReadEncodedPointer(info, addr, ipRangeEncoding, UINTPTR_MAX, &range)) { + return false; + } + + *ipStart = start; + *ipEnd = start + range; + + return true; +} + +static bool +ExtractProcInfoFromFde( + const libunwindInfo* info, + unw_word_t* addrp, + unw_proc_info_t *pip, + int need_unwind_info) +{ + unw_word_t addr = *addrp; + + unw_word_t ipStart, ipEnd; + unw_word_t fdeEndAddr; + dwarf_cie_info_t dci; + if (!ExtractFde(info, &addr, &fdeEndAddr, &ipStart, &ipEnd, &dci)) { + return false; + } + *addrp = fdeEndAddr; + + pip->start_ip = ipStart; + pip->end_ip = ipEnd; + pip->handler = dci.handler; + + unw_word_t augmentationSize, augmentationEndAddr; + if (dci.sized_augmentation) { + if (!ReadULEB128(info, &addr, &augmentationSize)) { + return false; + } + augmentationEndAddr = addr + augmentationSize; + } + + // Read language specific data area address + if (!ReadEncodedPointer(info, &addr, dci.lsda_encoding, pip->start_ip, &pip->lsda)) { + return false; + } + + // Now fill out the proc info if requested + if (need_unwind_info) + { + if (dci.have_abi_marker) + { + if (!ReadValue16(info, &addr, &dci.abi)) { + return false; + } + if (!ReadValue16(info, &addr, &dci.tag)) { + return false; + } + } + if (dci.sized_augmentation) { + dci.fde_instr_start = augmentationEndAddr; + } + else { + dci.fde_instr_start = addr; + } + dci.fde_instr_end = fdeEndAddr; + + pip->format = UNW_INFO_FORMAT_TABLE; + pip->unwind_info_size = sizeof(dci); + pip->unwind_info = malloc(sizeof(dci)); + if (pip->unwind_info == nullptr) { + return -UNW_ENOMEM; + } + memcpy(pip->unwind_info, &dci, sizeof(dci)); + } + + return true; +} + +static bool +SearchCompactEncodingSection( + const libunwindInfo* info, + unw_word_t ip, + unw_word_t compactUnwindSectionAddr, + unw_proc_info_t *pip) +{ + unwind_info_section_header sectionHeader; + if (!info->ReadMemory((PVOID)compactUnwindSectionAddr, §ionHeader, sizeof(sectionHeader))) { + return false; + } + TRACE("Unwind ver %d common off: %08x common cnt: %d pers off: %08x pers cnt: %d index off: %08x index cnt: %d\n", + sectionHeader.version, + sectionHeader.commonEncodingsArraySectionOffset, + sectionHeader.commonEncodingsArrayCount, + sectionHeader.personalityArraySectionOffset, + sectionHeader.personalityArrayCount, + sectionHeader.indexSectionOffset, + sectionHeader.indexCount); + + if (sectionHeader.version != UNWIND_SECTION_VERSION) { + return false; + } + + int32_t offset = ip - info->BaseAddress; + unwind_info_section_header_index_entry entry; + unwind_info_section_header_index_entry entryNext; + bool found; + if (!BinarySearchEntries(info, offset, compactUnwindSectionAddr + sectionHeader.indexSectionOffset, sectionHeader.indexCount, &entry, &entryNext, false, &found)) { + return false; + } + if (!found) { + ERROR("Top level index not found\n"); + return false; + } + + uint32_t firstLevelFunctionOffset = entry.functionOffset; + uint32_t firstLevelNextPageFunctionOffset = entryNext.functionOffset; + + unw_word_t secondLevelAddr = compactUnwindSectionAddr + entry.secondLevelPagesSectionOffset; + unw_word_t lsdaArrayStartAddr = compactUnwindSectionAddr + entry.lsdaIndexArraySectionOffset; + unw_word_t lsdaArrayEndAddr = compactUnwindSectionAddr + entryNext.lsdaIndexArraySectionOffset; + + uint32_t encoding = 0; + unw_word_t funcStart = 0; + unw_word_t funcEnd = 0; + unw_word_t lsda = 0; + unw_word_t personality = 0; + + uint32_t pageKind; + if (!info->ReadMemory((PVOID)secondLevelAddr, &pageKind, sizeof(pageKind))) { + return false; + } + if (pageKind == UNWIND_SECOND_LEVEL_REGULAR) + { + unwind_info_regular_second_level_page_header pageHeader; + if (!info->ReadMemory((PVOID)secondLevelAddr, &pageHeader, sizeof(pageHeader))) { + return false; + } + + unwind_info_regular_second_level_entry pageEntry; + unwind_info_regular_second_level_entry pageEntryNext; + if (!BinarySearchEntries(info, offset, secondLevelAddr + pageHeader.entryPageOffset, pageHeader.entryCount, &pageEntry, &pageEntryNext, false, &found)) { + return false; + } + + encoding = pageEntry.encoding; + TRACE("Second level regular: %08x for offset %08x\n", encoding, offset); + funcStart = pageEntry.functionOffset + info->BaseAddress; + if (found) { + funcEnd = pageEntryNext.functionOffset + info->BaseAddress; + } + else { + funcEnd = firstLevelNextPageFunctionOffset + info->BaseAddress; + TRACE("Second level regular pageEntry not found start %p end %p\n", (void*)funcStart, (void*)funcEnd); + } + + if (ip < funcStart || ip > funcEnd) { + ERROR("ip %p not in regular second level\n", (void*)ip); + return false; + } + } + else if (pageKind == UNWIND_SECOND_LEVEL_COMPRESSED) + { + unwind_info_compressed_second_level_page_header pageHeader; + if (!info->ReadMemory((PVOID)secondLevelAddr, &pageHeader, sizeof(pageHeader))) { + return false; + } + + uint32_t pageOffset = offset - firstLevelFunctionOffset; + uint32_t pageEntry; + uint32_t pageEntryNext; + if (!BinarySearchEntries(info, pageOffset, secondLevelAddr + pageHeader.entryPageOffset, pageHeader.entryCount, &pageEntry, &pageEntryNext, true, &found)) { + return false; + } + + funcStart = UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET(pageEntry) + firstLevelFunctionOffset + info->BaseAddress; + if (found) { + funcEnd = UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET(pageEntryNext) + firstLevelFunctionOffset + info->BaseAddress; + } + else { + funcEnd = firstLevelNextPageFunctionOffset + info->BaseAddress; + TRACE("Second level compressed pageEntry not found start %p end %p\n", (void*)funcStart, (void*)funcEnd); + } + + if (ip < funcStart || ip > funcEnd) { + ERROR("ip %p not in compressed second level\n", (void*)ip); + return false; + } + + uint16_t encodingIndex = UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX(pageEntry); + if (encodingIndex < sectionHeader.commonEncodingsArrayCount) + { + // Encoding is in common table in section header + unw_word_t addr = compactUnwindSectionAddr + sectionHeader.commonEncodingsArraySectionOffset + (encodingIndex * sizeof(uint32_t)); + if (!ReadValue32(info, &addr, &encoding)) { + return false; + } + TRACE("Second level compressed common table: %08x for offset %08x\n", encoding, pageOffset); + } + else + { + // Encoding is in page specific table + uint16_t pageEncodingIndex = encodingIndex - (uint16_t)sectionHeader.commonEncodingsArrayCount; + if (pageEncodingIndex >= pageHeader.encodingsCount) { + ERROR("pageEncodingIndex(%d) > page specific table encodingsCount(%d)\n", pageEncodingIndex, pageHeader.encodingsCount); + return false; + } + unw_word_t addr = secondLevelAddr + pageHeader.encodingsPageOffset + (pageEncodingIndex * sizeof(uint32_t)); + if (!ReadValue32(info, &addr, &encoding)) { + return false; + } + TRACE("Second level compressed page specific table: %08x for offset %08x\n", encoding, pageOffset); + } + } + else + { + ERROR("Invalid __unwind_info\n"); + return false; + } + + if (encoding & UNWIND_HAS_LSDA) + { + uint32_t funcStartOffset = funcStart - info->BaseAddress; + size_t lsdaArrayCount = (lsdaArrayEndAddr - lsdaArrayStartAddr) / sizeof(unwind_info_section_header_lsda_index_entry); + + unwind_info_section_header_lsda_index_entry lsdaEntry; + unwind_info_section_header_lsda_index_entry lsdaEntryNext; + if (!BinarySearchEntries(info, funcStartOffset, lsdaArrayStartAddr, lsdaArrayCount, &lsdaEntry, &lsdaEntryNext, false, &found)) { + return false; + } + if (!found || funcStartOffset != lsdaEntry.functionOffset || lsdaEntry.lsdaOffset == 0) { + ERROR("lsda not found(%d), not exact match (%08x != %08x) or lsda(%08x) == 0\n", + found, funcStartOffset, lsdaEntry.functionOffset, lsdaEntry.lsdaOffset); + return false; + } + lsda = lsdaEntry.lsdaOffset + info->BaseAddress; + } + + uint32_t personalityIndex = (encoding & UNWIND_PERSONALITY_MASK) >> (__builtin_ctz(UNWIND_PERSONALITY_MASK)); + if (personalityIndex != 0) + { + --personalityIndex; // change 1-based to zero-based index + if (personalityIndex > sectionHeader.personalityArrayCount) + { + ERROR("Invalid personality index\n"); + return false; + } + int32_t personalityDelta; + unw_word_t addr = compactUnwindSectionAddr + sectionHeader.personalityArraySectionOffset + personalityIndex * sizeof(uint32_t); + if (!ReadValue32(info, &addr, (uint32_t*)&personalityDelta)) { + return false; + } + addr = personalityDelta + info->BaseAddress; + if (!ReadPointer(info, &addr, &personality)) { + return false; + } + } + + pip->start_ip = funcStart; + pip->end_ip = funcEnd; + pip->lsda = lsda; + pip->handler = personality; + pip->gp = 0; + pip->flags = 0; + pip->format = encoding; + pip->unwind_info = 0; + pip->unwind_info_size = 0; + + TRACE("Encoding %08x start %p end %p found for ip %p\n", encoding, (void*)funcStart, (void*)funcEnd, (void*)ip); + return true; +} + +static bool +SearchDwarfSection( + const libunwindInfo* info, + unw_word_t ip, + unw_word_t dwarfSectionAddr, + unw_word_t dwarfSectionSize, + uint32_t fdeSectionHint, + unw_proc_info_t *pip, + int need_unwind_info) +{ + unw_word_t addr = dwarfSectionAddr + fdeSectionHint; + unw_word_t fdeAddr; + while (addr < (dwarfSectionAddr + dwarfSectionSize)) + { + fdeAddr = addr; + + unw_word_t ipStart, ipEnd; + unw_word_t fdeEndAddr; + dwarf_cie_info_t dci; + if (!ExtractFde(info, &addr, &fdeEndAddr, &ipStart, &ipEnd, &dci)) { + ERROR("ExtractFde FAILED for ip %p\n", (void*)ip); + break; + } + if (ip >= ipStart && ip < ipEnd) { + if (!ExtractProcInfoFromFde(info, &fdeAddr, pip, need_unwind_info)) { + ERROR("ExtractProcInfoFromFde FAILED for ip %p\n", (void*)ip); + break; + } + return true; + } + addr = fdeEndAddr; + } + return false; +} + +static bool +GetProcInfo(unw_word_t ip, unw_proc_info_t *pip, const libunwindInfo* info, bool* step, int need_unwind_info) +{ + memset(pip, 0, sizeof(*pip)); + *step = false; + + mach_header_64 header; + if (!info->ReadMemory((void*)info->BaseAddress, &header, sizeof(mach_header_64))) { + ERROR("Reading header %p\n", (void*)info->BaseAddress); + return false; + } + // Read load commands + void* commandsAddress = (void*)(info->BaseAddress + sizeof(mach_header_64)); + load_command* commands = (load_command*)malloc(header.sizeofcmds); + if (commands == nullptr) + { + ERROR("Failed to allocate %d byte load commands\n", header.sizeofcmds); + return false; + } + if (!info->ReadMemory(commandsAddress, commands, header.sizeofcmds)) + { + ERROR("Failed to read load commands at %p of %d\n", commandsAddress, header.sizeofcmds); + return false; + } + unw_word_t compactUnwindSectionAddr = 0; + unw_word_t compactUnwindSectionSize = 0; + unw_word_t ehframeSectionAddr = 0; + unw_word_t ehframeSectionSize = 0; + mach_vm_address_t loadBias = 0; + + load_command* command = commands; + for (int i = 0; i < header.ncmds; i++) + { + if (command->cmd == LC_SEGMENT_64) + { + segment_command_64* segment = (segment_command_64*)command; + + // Calculate the load bias for the module. This is the value to add to the vmaddr of a + // segment to get the actual address. + if (strcmp(segment->segname, SEG_TEXT) == 0) + { + loadBias = info->BaseAddress - segment->vmaddr; + TRACE_VERBOSE("CMD: load bias %016llx\n", loadBias); + } + + section_64* section = (section_64*)((uint64_t)segment + sizeof(segment_command_64)); + for (int s = 0; s < segment->nsects; s++, section++) + { + TRACE_VERBOSE(" addr %016llx size %016llx off %08x align %02x flags %02x %s %s\n", + section->addr, + section->size, + section->offset, + section->align, + section->flags, + section->segname, + section->sectname); + + if (strcmp(section->sectname, "__unwind_info") == 0) + { + compactUnwindSectionAddr = section->addr + loadBias; + compactUnwindSectionSize = section->size; + } + if (strcmp(section->sectname, "__eh_frame") == 0) + { + ehframeSectionAddr = section->addr + loadBias; + ehframeSectionSize = section->size; + } + } + } + // Get next load command + command = (load_command*)((char*)command + command->cmdsize); + } + + // If there is a compact unwind encoding table, look there first + if (compactUnwindSectionAddr != 0) + { + if (SearchCompactEncodingSection(info, ip, compactUnwindSectionAddr, pip)) + { + if (ehframeSectionAddr != 0) + { +#ifdef TARGET_AMD64 + if ((pip->format & UNWIND_X86_64_MODE_MASK) == UNWIND_X86_64_MODE_DWARF) + { + uint32_t dwarfOffsetHint = pip->format & UNWIND_X86_64_DWARF_SECTION_OFFSET; +#elif TARGET_ARM64 + if ((pip->format & UNWIND_ARM64_MODE_MASK) == UNWIND_ARM64_MODE_DWARF) + { + uint32_t dwarfOffsetHint = pip->format & UNWIND_ARM64_DWARF_SECTION_OFFSET; +#else +#error unsupported architecture +#endif + if (SearchDwarfSection(info, ip, ehframeSectionAddr, ehframeSectionSize, dwarfOffsetHint, pip, need_unwind_info)) { + TRACE("SUCCESS: found in eh frame from compact hint for %p\n", (void*)ip); + return true; + } + } + } + // Need to do a compact step based on pip->format and pip->start_ip + TRACE("Compact step %p format %08x start_ip %p\n", (void*)ip, pip->format, (void*)pip->start_ip); + *step = true; + return true; + } + } + + // Look in dwarf unwind info next + if (ehframeSectionAddr != 0) + { + if (SearchDwarfSection(info, ip, ehframeSectionAddr, ehframeSectionSize, 0, pip, need_unwind_info)) { + TRACE("SUCCESS: found in eh frame for %p\n", (void*)ip); + return true; + } + } + + ERROR("Unwind info not found for %p format %08x\n", (void*)ip, pip->format); + return false; +} + +static bool +StepWithCompactEncodingRBPFrame(const libunwindInfo* info, compact_unwind_encoding_t compactEncoding) +{ + CONTEXT* context = info->Context; + uint32_t savedRegistersOffset = EXTRACT_BITS(compactEncoding, UNWIND_X86_64_RBP_FRAME_OFFSET); + uint32_t savedRegistersLocations = EXTRACT_BITS(compactEncoding, UNWIND_X86_64_RBP_FRAME_REGISTERS); + unw_word_t savedRegisters = context->Rbp - (sizeof(uint64_t) * savedRegistersOffset); + + // See compact_unwind_encoding.h for the format bit layout details + for (int i = 0; i < 5; ++i) + { + switch (savedRegistersLocations & 0x7) + { + case UNWIND_X86_64_REG_NONE: + // no register saved in this slot + break; + case UNWIND_X86_64_REG_RBX: + if (!ReadValue64(info, &savedRegisters, (uint64_t*)&context->Rbx)) { + return false; + } + break; + case UNWIND_X86_64_REG_R12: + if (!ReadValue64(info, &savedRegisters, (uint64_t*)&context->R12)) { + return false; + } + break; + case UNWIND_X86_64_REG_R13: + if (!ReadValue64(info, &savedRegisters, (uint64_t*)&context->R13)) { + return false; + } + break; + case UNWIND_X86_64_REG_R14: + if (!ReadValue64(info, &savedRegisters, (uint64_t*)&context->R14)) { + return false; + } + break; + case UNWIND_X86_64_REG_R15: + if (!ReadValue64(info, &savedRegisters, (uint64_t*)&context->R15)) { + return false; + } + break; + default: + ERROR("Invalid register for RBP frame %08x\n", compactEncoding); + return false; + } + savedRegistersLocations = (savedRegistersLocations >> 3); + } + uint64_t rbp = context->Rbp; + + // ebp points to old ebp + unw_word_t addr = rbp; + if (!ReadValue64(info, &addr, (uint64_t*)&context->Rbp)) { + return false; + } + + // old esp is ebp less saved ebp and return address + context->Rsp = rbp + (sizeof(uint64_t) * 2); + + // pop return address into eip + addr = rbp + sizeof(uint64_t); + if (!ReadValue64(info, &addr, (uint64_t*)&context->Rip)) { + return false; + } + + TRACE("SUCCESS: compact step encoding %08x rip %p rsp %p rbp %p\n", + compactEncoding, (void*)context->Rip, (void*)context->Rsp, (void*)context->Rbp); + return true; +} + +static bool +StepWithCompactEncoding(const libunwindInfo* info, compact_unwind_encoding_t compactEncoding, unw_word_t functionStart) +{ + if (compactEncoding == 0) + { + TRACE("Compact unwind missing for %p\n", (void*)info->Context->Rip); + return false; + } + switch (compactEncoding & UNWIND_X86_64_MODE_MASK) + { + case UNWIND_X86_64_MODE_RBP_FRAME: + return StepWithCompactEncodingRBPFrame(info, compactEncoding); + + case UNWIND_X86_64_MODE_STACK_IMMD: + case UNWIND_X86_64_MODE_STACK_IND: + break; + + } + ERROR("Invalid encoding %08x\n", compactEncoding); + return false; +} + +#endif // __APPLE__ + +static void GetContextPointer(unw_cursor_t *cursor, unw_context_t *unwContext, int reg, SIZE_T **contextPointer) +{ +#if defined(HAVE_UNW_GET_SAVE_LOC) + unw_save_loc_t saveLoc; + unw_get_save_loc(cursor, reg, &saveLoc); + if (saveLoc.type == UNW_SLT_MEMORY) + { + SIZE_T *pLoc = (SIZE_T *)saveLoc.u.addr; + // Filter out fake save locations that point to unwContext + if (unwContext == NULL || (pLoc < (SIZE_T *)unwContext) || ((SIZE_T *)(unwContext + 1) <= pLoc)) + *contextPointer = (SIZE_T *)saveLoc.u.addr; + } +#else + // Returning NULL indicates that we don't have context pointers available + *contextPointer = NULL; +#endif +} + +static void GetContextPointers(unw_cursor_t *cursor, unw_context_t *unwContext, KNONVOLATILE_CONTEXT_POINTERS *contextPointers) +{ +#if (defined(HOST_UNIX) && defined(HOST_AMD64)) || (defined(HOST_WINDOWS) && defined(TARGET_AMD64)) + GetContextPointer(cursor, unwContext, UNW_X86_64_RBP, &contextPointers->Rbp); + GetContextPointer(cursor, unwContext, UNW_X86_64_RBX, &contextPointers->Rbx); + GetContextPointer(cursor, unwContext, UNW_X86_64_R12, &contextPointers->R12); + GetContextPointer(cursor, unwContext, UNW_X86_64_R13, &contextPointers->R13); + GetContextPointer(cursor, unwContext, UNW_X86_64_R14, &contextPointers->R14); + GetContextPointer(cursor, unwContext, UNW_X86_64_R15, &contextPointers->R15); +#elif (defined(HOST_UNIX) && defined(HOST_X86)) || (defined(HOST_WINDOWS) && defined(TARGET_X86)) + GetContextPointer(cursor, unwContext, UNW_X86_EBX, &contextPointers->Ebx); + GetContextPointer(cursor, unwContext, UNW_X86_EBP, &contextPointers->Ebp); + GetContextPointer(cursor, unwContext, UNW_X86_ESI, &contextPointers->Esi); + GetContextPointer(cursor, unwContext, UNW_X86_EDI, &contextPointers->Edi); +#elif (defined(HOST_UNIX) && defined(HOST_ARM)) || (defined(HOST_WINDOWS) && defined(TARGET_ARM)) + GetContextPointer(cursor, unwContext, UNW_ARM_R4, &contextPointers->R4); + GetContextPointer(cursor, unwContext, UNW_ARM_R5, &contextPointers->R5); + GetContextPointer(cursor, unwContext, UNW_ARM_R6, &contextPointers->R6); + GetContextPointer(cursor, unwContext, UNW_ARM_R7, &contextPointers->R7); + GetContextPointer(cursor, unwContext, UNW_ARM_R8, &contextPointers->R8); + GetContextPointer(cursor, unwContext, UNW_ARM_R9, &contextPointers->R9); + GetContextPointer(cursor, unwContext, UNW_ARM_R10, &contextPointers->R10); + GetContextPointer(cursor, unwContext, UNW_ARM_R11, &contextPointers->R11); +#elif (defined(HOST_UNIX) && defined(HOST_ARM64)) || (defined(HOST_WINDOWS) && defined(TARGET_ARM64)) + GetContextPointer(cursor, unwContext, UNW_AARCH64_X19, &contextPointers->X19); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X20, &contextPointers->X20); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X21, &contextPointers->X21); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X22, &contextPointers->X22); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X23, &contextPointers->X23); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X24, &contextPointers->X24); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X25, &contextPointers->X25); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X26, &contextPointers->X26); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X27, &contextPointers->X27); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X28, &contextPointers->X28); + GetContextPointer(cursor, unwContext, UNW_AARCH64_X29, &contextPointers->Fp); +#else +#error unsupported architecture +#endif +} + static void UnwindContextToContext(unw_cursor_t *cursor, CONTEXT *winContext) { #if (defined(HOST_UNIX) && defined(HOST_AMD64)) || (defined(HOST_WINDOWS) && defined(TARGET_AMD64)) @@ -294,7 +1552,7 @@ access_reg(unw_addr_space_t as, unw_regnum_t regnum, unw_word_t *valp, int write ASSERT("Attempt to read an unknown register %d\n", regnum); return -UNW_EBADREG; } - TRACE("REG: %d %p\n", regnum, *valp); + TRACE("REG: %d %p\n", regnum, (void*)*valp); return UNW_ESUCCESS; } @@ -323,6 +1581,14 @@ static int find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pip, int need_unwind_info, void *arg) { const auto *info = (libunwindInfo*)arg; +#ifdef __APPLE__ + bool step; + if (!GetProcInfo(ip, pip, info, &step, need_unwind_info)) { + return -UNW_EINVAL; + } + _ASSERTE(!step); + return UNW_ESUCCESS; +#else memset(pip, 0, sizeof(*pip)); Ehdr ehdr; @@ -424,6 +1690,7 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pip, int nee } return _OOP_find_proc_info(start_ip, end_ip, ehFrameHdrAddr, ehFrameHdrLen, exidxFrameHdrAddr, exidxFrameHdrLen, as, ip, pip, need_unwind_info, arg); +#endif // __APPLE__ } static void @@ -472,6 +1739,22 @@ PAL_VirtualUnwindOutOfProc(CONTEXT *context, KNONVOLATILE_CONTEXT_POINTERS *cont info.Context = context; info.ReadMemory = readMemoryCallback; +#ifdef __APPLE__ + TRACE("Unwind: rip %p rsp %p rbp %p\n", (void*)context->Rip, (void*)context->Rsp, (void*)context->Rbp); + unw_proc_info_t procInfo; + bool step; + result = GetProcInfo(context->Rip, &procInfo, &info, &step, false); + if (!result) + { + goto exit; + } + if (step) + { + result = StepWithCompactEncoding(&info, procInfo.format, procInfo.start_ip); + goto exit; + } +#endif + addrSpace = unw_create_addr_space(&unwind_accessors, 0); st = unw_init_remote(&cursor, addrSpace, &info); @@ -513,4 +1796,4 @@ PAL_VirtualUnwindOutOfProc(CONTEXT *context, KNONVOLATILE_CONTEXT_POINTERS *cont return FALSE; } -#endif // defined(HAVE_UNW_GET_ACCESSORS) +#endif // defined(HAVE_UNW_GET_ACCESSORS) || defined(__APPLE__) diff --git a/src/coreclr/src/pal/src/libunwind/CMakeLists.txt b/src/coreclr/src/pal/src/libunwind/CMakeLists.txt index 169023e12b8f0..bf26aca20235e 100644 --- a/src/coreclr/src/pal/src/libunwind/CMakeLists.txt +++ b/src/coreclr/src/pal/src/libunwind/CMakeLists.txt @@ -1,6 +1,5 @@ # This is a custom file written for .NET Core's build system # It overwrites the one found in upstream - project(unwind) set(CMAKE_INCLUDE_CURRENT_DIR ON) @@ -69,6 +68,28 @@ if(CLR_CMAKE_HOST_UNIX) # Disable warning for a bug in the libunwind source src/x86/Gos-linux.c, but not in code that we exercise add_compile_options(-Wno-incompatible-pointer-types) endif() + + if (CLR_CMAKE_HOST_OSX) + add_definitions(-D_XOPEN_SOURCE) + add_definitions(-DUNW_REMOTE_ONLY) + add_definitions(-D__APPLE__) + add_compile_options(-Wno-sometimes-uninitialized) + add_compile_options(-Wno-implicit-function-declaration) + + # Our posix abstraction layer will provide these headers + set(HAVE_ELF_H 1) + set(HAVE_ENDIAN_H 1) + + # include paths + include_directories(include/tdep) + include_directories(include) + include_directories(${CMAKE_CURRENT_BINARY_DIR}/include/tdep) + include_directories(${CMAKE_CURRENT_BINARY_DIR}/include) + + # files for macos compilation + include_directories(../libunwind_mac/include) + endif(CLR_CMAKE_HOST_OSX) + endif(CLR_CMAKE_HOST_UNIX) if(CLR_CMAKE_HOST_WIN32) diff --git a/src/coreclr/src/pal/src/libunwind/src/CMakeLists.txt b/src/coreclr/src/pal/src/libunwind/src/CMakeLists.txt index c7cc497f31095..656f913ab0734 100644 --- a/src/coreclr/src/pal/src/libunwind/src/CMakeLists.txt +++ b/src/coreclr/src/pal/src/libunwind/src/CMakeLists.txt @@ -299,15 +299,26 @@ if(CLR_CMAKE_HOST_UNIX) list(APPEND libunwind_setjmp_la_SOURCES x86_64/longjmp.S x86_64/siglongjmp.SA) endif() - add_library(libunwind - OBJECT - ${libunwind_la_SOURCES} - ${libunwind_remote_la_SOURCES} - ${libunwind_dwarf_local_la_SOURCES} - ${libunwind_dwarf_common_la_SOURCES} - ${libunwind_dwarf_generic_la_SOURCES} - ${libunwind_elf_la_SOURCES} - ) + if(CLR_CMAKE_HOST_OSX) + add_library(libunwind_dac + OBJECT + ../../libunwind_mac/src/missing-functions.c + ${libunwind_remote_la_SOURCES} + ${libunwind_dwarf_common_la_SOURCES} + ${libunwind_dwarf_generic_la_SOURCES} + ) + else() + add_library(libunwind + OBJECT + ${libunwind_la_SOURCES} + ${libunwind_remote_la_SOURCES} + ${libunwind_dwarf_local_la_SOURCES} + ${libunwind_dwarf_common_la_SOURCES} + ${libunwind_dwarf_generic_la_SOURCES} + ${libunwind_elf_la_SOURCES} + ) + endif(CLR_CMAKE_HOST_OSX) + else(CLR_CMAKE_HOST_UNIX) if(CLR_CMAKE_TARGET_ARCH_ARM64) SET(libunwind_la_SOURCES ${libunwind_la_SOURCES_aarch64}) @@ -332,11 +343,10 @@ else(CLR_CMAKE_HOST_UNIX) endif() set_source_files_properties(${CLR_DIR}/src/pal/src/exception/remote-unwind.cpp PROPERTIES COMPILE_FLAGS /TP INCLUDE_DIRECTORIES ${CLR_DIR}/src/inc) - set_source_files_properties(${CLR_DIR}/src/pal/src/exception/seh-unwind.cpp PROPERTIES COMPILE_FLAGS /TP INCLUDE_DIRECTORIES ${CLR_DIR}/src/inc) + add_library(libunwind_xdac OBJECT ../../exception/remote-unwind.cpp - ../../exception/seh-unwind.cpp win/pal-single-threaded.c # ${libunwind_la_SOURCES} Local... ${libunwind_remote_la_SOURCES} @@ -348,4 +358,3 @@ else(CLR_CMAKE_HOST_UNIX) ${libunwind_elf_la_SOURCES} ) endif(CLR_CMAKE_HOST_UNIX) - diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/elf.h b/src/coreclr/src/pal/src/libunwind_mac/include/elf.h new file mode 100644 index 0000000000000..d843777e426aa --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/elf.h @@ -0,0 +1,10 @@ +// This is an incomplete & imprecice implementation +// It defers to the open source freebsd-elf implementations. + +#pragma once + +#include + +#include "freebsd-elf_common.h" +#include "freebsd-elf32.h" +#include "freebsd-elf64.h" diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/endian.h b/src/coreclr/src/pal/src/libunwind_mac/include/endian.h new file mode 100644 index 0000000000000..409750756069e --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/endian.h @@ -0,0 +1,9 @@ +// This is an incomplete & imprecice implementation of the +// standard file by the same name + +#pragma once + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 + +#define __BYTE_ORDER __LITTLE_ENDIAN diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/fakestdalign.h.in b/src/coreclr/src/pal/src/libunwind_mac/include/fakestdalign.h.in new file mode 100644 index 0000000000000..3e94006d8cae7 --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/fakestdalign.h.in @@ -0,0 +1,9 @@ +// This is a fake implementatino of stdaliagn.h for when +// compiler C11 stdaliagn.h support is missing + +#ifndef FAKE_STD_ALIGN_H +#define FAKE_STD_ALIGN_H + +#define alignas(x) + +#endif // FAKE_STD_ALIGN_H diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/fakestdatomic.h.in b/src/coreclr/src/pal/src/libunwind_mac/include/fakestdatomic.h.in new file mode 100644 index 0000000000000..7b9dcd5a9d8ac --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/fakestdatomic.h.in @@ -0,0 +1,36 @@ +// This is a non-atomic fake implementatino of stdatomics for when +// compiler C11 stdatomic support is missing and only single threaded +// operation is required + +#ifndef FAKE_STD_ATOMICS_H +#define FAKE_STD_ATOMICS_H + +#include + +#define _Atomic volatile +#define ATOMIC_FLAG_INIT 0 + +typedef uint8_t atomic_bool; +typedef uint8_t atomic_flag; + +#define atomic_compare_and_exchange_strong(x, y, z) return ((*(x) == *(y)) ? ((*(x) = z), true) : ((*(y) = *(x)),false)) + +#define atomic_fetch_add(x, y) *(x) += (y), (*(x) - (y)) + +static inline void atomic_flag_clear(volatile atomic_flag* flag) +{ + *flag = ATOMIC_FLAG_INIT; +} + +static inline atomic_bool atomic_flag_test_and_set( volatile atomic_flag* flag ) +{ + atomic_bool result = *flag; + *flag = 1; + return result; +} + +#define atomic_load(x) (*(x)) +#define atomic_store(x, y) do { *(x) = (y); } while (0) + + +#endif // FAKE_STD_ATOMICS_H diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf32.h b/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf32.h new file mode 100644 index 0000000000000..b4c0d94210d9c --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf32.h @@ -0,0 +1,245 @@ +/*- + * Copyright (c) 1996-1998 John D. Polstra. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: src/sys/sys/elf32.h,v 1.8.14.2.2.1 2008/10/02 02:57:24 kensmith Exp $ + */ + +#ifndef _SYS_ELF32_H_ +#define _SYS_ELF32_H_ 1 + +#include "freebsd-elf_common.h" + +/* + * ELF definitions common to all 32-bit architectures. + */ + +typedef uint32_t Elf32_Addr; +typedef uint16_t Elf32_Half; +typedef uint32_t Elf32_Off; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf32_Word; +typedef uint64_t Elf32_Lword; + +typedef Elf32_Word Elf32_Hashelt; + +/* Non-standard class-dependent datatype used for abstraction. */ +typedef Elf32_Word Elf32_Size; +typedef Elf32_Sword Elf32_Ssize; + +/* + * ELF header. + */ + +typedef struct { + unsigned char e_ident[EI_NIDENT]; /* File identification. */ + Elf32_Half e_type; /* File type. */ + Elf32_Half e_machine; /* Machine architecture. */ + Elf32_Word e_version; /* ELF format version. */ + Elf32_Addr e_entry; /* Entry point. */ + Elf32_Off e_phoff; /* Program header file offset. */ + Elf32_Off e_shoff; /* Section header file offset. */ + Elf32_Word e_flags; /* Architecture-specific flags. */ + Elf32_Half e_ehsize; /* Size of ELF header in bytes. */ + Elf32_Half e_phentsize; /* Size of program header entry. */ + Elf32_Half e_phnum; /* Number of program header entries. */ + Elf32_Half e_shentsize; /* Size of section header entry. */ + Elf32_Half e_shnum; /* Number of section header entries. */ + Elf32_Half e_shstrndx; /* Section name strings section. */ +} Elf32_Ehdr; + +/* + * Section header. + */ + +typedef struct { + Elf32_Word sh_name; /* Section name (index into the + section header string table). */ + Elf32_Word sh_type; /* Section type. */ + Elf32_Word sh_flags; /* Section flags. */ + Elf32_Addr sh_addr; /* Address in memory image. */ + Elf32_Off sh_offset; /* Offset in file. */ + Elf32_Word sh_size; /* Size in bytes. */ + Elf32_Word sh_link; /* Index of a related section. */ + Elf32_Word sh_info; /* Depends on section type. */ + Elf32_Word sh_addralign; /* Alignment in bytes. */ + Elf32_Word sh_entsize; /* Size of each entry in section. */ +} Elf32_Shdr; + +/* + * Program header. + */ + +typedef struct { + Elf32_Word p_type; /* Entry type. */ + Elf32_Off p_offset; /* File offset of contents. */ + Elf32_Addr p_vaddr; /* Virtual address in memory image. */ + Elf32_Addr p_paddr; /* Physical address (not used). */ + Elf32_Word p_filesz; /* Size of contents in file. */ + Elf32_Word p_memsz; /* Size of contents in memory. */ + Elf32_Word p_flags; /* Access permission flags. */ + Elf32_Word p_align; /* Alignment in memory and file. */ +} Elf32_Phdr; + +/* + * Dynamic structure. The ".dynamic" section contains an array of them. + */ + +typedef struct { + Elf32_Sword d_tag; /* Entry type. */ + union { + Elf32_Word d_val; /* Integer value. */ + Elf32_Addr d_ptr; /* Address value. */ + } d_un; +} Elf32_Dyn; + +/* + * Relocation entries. + */ + +/* Relocations that don't need an addend field. */ +typedef struct { + Elf32_Addr r_offset; /* Location to be relocated. */ + Elf32_Word r_info; /* Relocation type and symbol index. */ +} Elf32_Rel; + +/* Relocations that need an addend field. */ +typedef struct { + Elf32_Addr r_offset; /* Location to be relocated. */ + Elf32_Word r_info; /* Relocation type and symbol index. */ + Elf32_Sword r_addend; /* Addend. */ +} Elf32_Rela; + +/* Macros for accessing the fields of r_info. */ +#define ELF32_R_SYM(info) ((info) >> 8) +#define ELF32_R_TYPE(info) ((unsigned char)(info)) + +/* Macro for constructing r_info from field values. */ +#define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) + +/* + * Note entry header + */ +typedef Elf_Note Elf32_Nhdr; + +/* + * Move entry + */ +typedef struct { + Elf32_Lword m_value; /* symbol value */ + Elf32_Word m_info; /* size + index */ + Elf32_Word m_poffset; /* symbol offset */ + Elf32_Half m_repeat; /* repeat count */ + Elf32_Half m_stride; /* stride info */ +} Elf32_Move; + +/* + * The macros compose and decompose values for Move.r_info + * + * sym = ELF32_M_SYM(M.m_info) + * size = ELF32_M_SIZE(M.m_info) + * M.m_info = ELF32_M_INFO(sym, size) + */ +#define ELF32_M_SYM(info) ((info)>>8) +#define ELF32_M_SIZE(info) ((unsigned char)(info)) +#define ELF32_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) + +/* + * Hardware/Software capabilities entry + */ +typedef struct { + Elf32_Word c_tag; /* how to interpret value */ + union { + Elf32_Word c_val; + Elf32_Addr c_ptr; + } c_un; +} Elf32_Cap; + +/* + * Symbol table entries. + */ + +typedef struct { + Elf32_Word st_name; /* String table index of name. */ + Elf32_Addr st_value; /* Symbol value. */ + Elf32_Word st_size; /* Size of associated object. */ + unsigned char st_info; /* Type and binding information. */ + unsigned char st_other; /* Reserved (not used). */ + Elf32_Half st_shndx; /* Section index of symbol. */ +} Elf32_Sym; + +/* Macros for accessing the fields of st_info. */ +#define ELF32_ST_BIND(info) ((info) >> 4) +#define ELF32_ST_TYPE(info) ((info) & 0xf) + +/* Macro for constructing st_info from field values. */ +#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Macro for accessing the fields of st_other. */ +#define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3) + +/* Structures used by Sun & GNU symbol versioning. */ +typedef struct +{ + Elf32_Half vd_version; + Elf32_Half vd_flags; + Elf32_Half vd_ndx; + Elf32_Half vd_cnt; + Elf32_Word vd_hash; + Elf32_Word vd_aux; + Elf32_Word vd_next; +} Elf32_Verdef; + +typedef struct +{ + Elf32_Word vda_name; + Elf32_Word vda_next; +} Elf32_Verdaux; + +typedef struct +{ + Elf32_Half vn_version; + Elf32_Half vn_cnt; + Elf32_Word vn_file; + Elf32_Word vn_aux; + Elf32_Word vn_next; +} Elf32_Verneed; + +typedef struct +{ + Elf32_Word vna_hash; + Elf32_Half vna_flags; + Elf32_Half vna_other; + Elf32_Word vna_name; + Elf32_Word vna_next; +} Elf32_Vernaux; + +typedef Elf32_Half Elf32_Versym; + +typedef struct { + Elf32_Half si_boundto; /* direct bindings - symbol bound to */ + Elf32_Half si_flags; /* per symbol flags */ +} Elf32_Syminfo; + +#endif /* !_SYS_ELF32_H_ */ diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf64.h b/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf64.h new file mode 100644 index 0000000000000..0991fe356f97f --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf64.h @@ -0,0 +1,252 @@ +/*- + * Copyright (c) 1996-1998 John D. Polstra. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: src/sys/sys/elf64.h,v 1.10.14.2.2.1 2008/10/02 02:57:24 kensmith Exp $ + */ + +#ifndef _SYS_ELF64_H_ +#define _SYS_ELF64_H_ 1 + +#include "freebsd-elf_common.h" + +/* + * ELF definitions common to all 64-bit architectures. + */ + +typedef uint64_t Elf64_Addr; +typedef uint16_t Elf64_Half; +typedef uint64_t Elf64_Off; +typedef int32_t Elf64_Sword; +typedef int64_t Elf64_Sxword; +typedef uint32_t Elf64_Word; +typedef uint64_t Elf64_Lword; +typedef uint64_t Elf64_Xword; + +/* + * Types of dynamic symbol hash table bucket and chain elements. + * + * This is inconsistent among 64 bit architectures, so a machine dependent + * typedef is required. + */ + +#ifdef __alpha__ +typedef Elf64_Off Elf64_Hashelt; +#else +typedef Elf64_Word Elf64_Hashelt; +#endif + +/* Non-standard class-dependent datatype used for abstraction. */ +typedef Elf64_Xword Elf64_Size; +typedef Elf64_Sxword Elf64_Ssize; + +/* + * ELF header. + */ + +typedef struct { + unsigned char e_ident[EI_NIDENT]; /* File identification. */ + Elf64_Half e_type; /* File type. */ + Elf64_Half e_machine; /* Machine architecture. */ + Elf64_Word e_version; /* ELF format version. */ + Elf64_Addr e_entry; /* Entry point. */ + Elf64_Off e_phoff; /* Program header file offset. */ + Elf64_Off e_shoff; /* Section header file offset. */ + Elf64_Word e_flags; /* Architecture-specific flags. */ + Elf64_Half e_ehsize; /* Size of ELF header in bytes. */ + Elf64_Half e_phentsize; /* Size of program header entry. */ + Elf64_Half e_phnum; /* Number of program header entries. */ + Elf64_Half e_shentsize; /* Size of section header entry. */ + Elf64_Half e_shnum; /* Number of section header entries. */ + Elf64_Half e_shstrndx; /* Section name strings section. */ +} Elf64_Ehdr; + +/* + * Section header. + */ + +typedef struct { + Elf64_Word sh_name; /* Section name (index into the + section header string table). */ + Elf64_Word sh_type; /* Section type. */ + Elf64_Xword sh_flags; /* Section flags. */ + Elf64_Addr sh_addr; /* Address in memory image. */ + Elf64_Off sh_offset; /* Offset in file. */ + Elf64_Xword sh_size; /* Size in bytes. */ + Elf64_Word sh_link; /* Index of a related section. */ + Elf64_Word sh_info; /* Depends on section type. */ + Elf64_Xword sh_addralign; /* Alignment in bytes. */ + Elf64_Xword sh_entsize; /* Size of each entry in section. */ +} Elf64_Shdr; + +/* + * Program header. + */ + +typedef struct { + Elf64_Word p_type; /* Entry type. */ + Elf64_Word p_flags; /* Access permission flags. */ + Elf64_Off p_offset; /* File offset of contents. */ + Elf64_Addr p_vaddr; /* Virtual address in memory image. */ + Elf64_Addr p_paddr; /* Physical address (not used). */ + Elf64_Xword p_filesz; /* Size of contents in file. */ + Elf64_Xword p_memsz; /* Size of contents in memory. */ + Elf64_Xword p_align; /* Alignment in memory and file. */ +} Elf64_Phdr; + +/* + * Dynamic structure. The ".dynamic" section contains an array of them. + */ + +typedef struct { + Elf64_Sxword d_tag; /* Entry type. */ + union { + Elf64_Xword d_val; /* Integer value. */ + Elf64_Addr d_ptr; /* Address value. */ + } d_un; +} Elf64_Dyn; + +/* + * Relocation entries. + */ + +/* Relocations that don't need an addend field. */ +typedef struct { + Elf64_Addr r_offset; /* Location to be relocated. */ + Elf64_Xword r_info; /* Relocation type and symbol index. */ +} Elf64_Rel; + +/* Relocations that need an addend field. */ +typedef struct { + Elf64_Addr r_offset; /* Location to be relocated. */ + Elf64_Xword r_info; /* Relocation type and symbol index. */ + Elf64_Sxword r_addend; /* Addend. */ +} Elf64_Rela; + +/* Macros for accessing the fields of r_info. */ +#define ELF64_R_SYM(info) ((info) >> 32) +#define ELF64_R_TYPE(info) ((info) & 0xffffffffL) + +/* Macro for constructing r_info from field values. */ +#define ELF64_R_INFO(sym, type) (((sym) << 32) + ((type) & 0xffffffffL)) + +#define ELF64_R_TYPE_DATA(info) (((Elf64_Xword)(info)<<32)>>40) +#define ELF64_R_TYPE_ID(info) (((Elf64_Xword)(info)<<56)>>56) +#define ELF64_R_TYPE_INFO(data, type) \ + (((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type)) + +/* + * Note entry header + */ +typedef Elf_Note Elf64_Nhdr; + +/* + * Move entry + */ +typedef struct { + Elf64_Lword m_value; /* symbol value */ + Elf64_Xword m_info; /* size + index */ + Elf64_Xword m_poffset; /* symbol offset */ + Elf64_Half m_repeat; /* repeat count */ + Elf64_Half m_stride; /* stride info */ +} Elf64_Move; + +#define ELF64_M_SYM(info) ((info)>>8) +#define ELF64_M_SIZE(info) ((unsigned char)(info)) +#define ELF64_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) + +/* + * Hardware/Software capabilities entry + */ +typedef struct { + Elf64_Xword c_tag; /* how to interpret value */ + union { + Elf64_Xword c_val; + Elf64_Addr c_ptr; + } c_un; +} Elf64_Cap; + +/* + * Symbol table entries. + */ + +typedef struct { + Elf64_Word st_name; /* String table index of name. */ + unsigned char st_info; /* Type and binding information. */ + unsigned char st_other; /* Reserved (not used). */ + Elf64_Half st_shndx; /* Section index of symbol. */ + Elf64_Addr st_value; /* Symbol value. */ + Elf64_Xword st_size; /* Size of associated object. */ +} Elf64_Sym; + +/* Macros for accessing the fields of st_info. */ +#define ELF64_ST_BIND(info) ((info) >> 4) +#define ELF64_ST_TYPE(info) ((info) & 0xf) + +/* Macro for constructing st_info from field values. */ +#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Macro for accessing the fields of st_other. */ +#define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3) + +/* Structures used by Sun & GNU-style symbol versioning. */ +typedef struct { + Elf64_Half vd_version; + Elf64_Half vd_flags; + Elf64_Half vd_ndx; + Elf64_Half vd_cnt; + Elf64_Word vd_hash; + Elf64_Word vd_aux; + Elf64_Word vd_next; +} Elf64_Verdef; + +typedef struct { + Elf64_Word vda_name; + Elf64_Word vda_next; +} Elf64_Verdaux; + +typedef struct { + Elf64_Half vn_version; + Elf64_Half vn_cnt; + Elf64_Word vn_file; + Elf64_Word vn_aux; + Elf64_Word vn_next; +} Elf64_Verneed; + +typedef struct { + Elf64_Word vna_hash; + Elf64_Half vna_flags; + Elf64_Half vna_other; + Elf64_Word vna_name; + Elf64_Word vna_next; +} Elf64_Vernaux; + +typedef Elf64_Half Elf64_Versym; + +typedef struct { + Elf64_Half si_boundto; /* direct bindings - symbol bound to */ + Elf64_Half si_flags; /* per symbol flags */ +} Elf64_Syminfo; + +#endif /* !_SYS_ELF64_H_ */ diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf_common.h b/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf_common.h new file mode 100644 index 0000000000000..7aef2d49667e4 --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/freebsd-elf_common.h @@ -0,0 +1,865 @@ +/*- + * Copyright (c) 1998 John D. Polstra. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: src/sys/sys/elf_common.h,v 1.24 2008/08/02 01:20:10 imp Exp $ + */ + +#ifndef _SYS_ELF_COMMON_H_ +#define _SYS_ELF_COMMON_H_ 1 + +/* + * ELF definitions that are independent of architecture or word size. + */ + +/* + * Note header. The ".note" section contains an array of notes. Each + * begins with this header, aligned to a word boundary. Immediately + * following the note header is n_namesz bytes of name, padded to the + * next word boundary. Then comes n_descsz bytes of descriptor, again + * padded to a word boundary. The values of n_namesz and n_descsz do + * not include the padding. + */ + +typedef struct { + uint32_t n_namesz; /* Length of name. */ + uint32_t n_descsz; /* Length of descriptor. */ + uint32_t n_type; /* Type of this note. */ +} Elf_Note; + +/* Indexes into the e_ident array. Keep synced with + http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ +#define EI_MAG0 0 /* Magic number, byte 0. */ +#define EI_MAG1 1 /* Magic number, byte 1. */ +#define EI_MAG2 2 /* Magic number, byte 2. */ +#define EI_MAG3 3 /* Magic number, byte 3. */ +#define EI_CLASS 4 /* Class of machine. */ +#define EI_DATA 5 /* Data format. */ +#define EI_VERSION 6 /* ELF format version. */ +#define EI_OSABI 7 /* Operating system / ABI identification */ +#define EI_ABIVERSION 8 /* ABI version */ +#define OLD_EI_BRAND 8 /* Start of architecture identification. */ +#define EI_PAD 9 /* Start of padding (per SVR4 ABI). */ +#define EI_NIDENT 16 /* Size of e_ident array. */ + +/* Values for the magic number bytes. */ +#define ELFMAG0 0x7f +#define ELFMAG1 'E' +#define ELFMAG2 'L' +#define ELFMAG3 'F' +#define ELFMAG "\177ELF" /* magic string */ +#define SELFMAG 4 /* magic string size */ + +/* Values for e_ident[EI_VERSION] and e_version. */ +#define EV_NONE 0 +#define EV_CURRENT 1 + +/* Values for e_ident[EI_CLASS]. */ +#define ELFCLASSNONE 0 /* Unknown class. */ +#define ELFCLASS32 1 /* 32-bit architecture. */ +#define ELFCLASS64 2 /* 64-bit architecture. */ + +/* Values for e_ident[EI_DATA]. */ +#define ELFDATANONE 0 /* Unknown data format. */ +#define ELFDATA2LSB 1 /* 2's complement little-endian. */ +#define ELFDATA2MSB 2 /* 2's complement big-endian. */ + +/* Values for e_ident[EI_OSABI]. */ +#define ELFOSABI_NONE 0 /* UNIX System V ABI */ +#define ELFOSABI_HPUX 1 /* HP-UX operating system */ +#define ELFOSABI_NETBSD 2 /* NetBSD */ +#define ELFOSABI_LINUX 3 /* GNU/Linux */ +#define ELFOSABI_HURD 4 /* GNU/Hurd */ +#define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */ +#define ELFOSABI_SOLARIS 6 /* Solaris */ +#define ELFOSABI_AIX 7 /* AIX */ +#define ELFOSABI_IRIX 8 /* IRIX */ +#define ELFOSABI_FREEBSD 9 /* FreeBSD */ +#define ELFOSABI_TRU64 10 /* TRU64 UNIX */ +#define ELFOSABI_MODESTO 11 /* Novell Modesto */ +#define ELFOSABI_OPENBSD 12 /* OpenBSD */ +#define ELFOSABI_OPENVMS 13 /* Open VMS */ +#define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */ +#define ELFOSABI_ARM 97 /* ARM */ +#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ + +#define ELFOSABI_SYSV ELFOSABI_NONE /* symbol used in old spec */ +#define ELFOSABI_MONTEREY ELFOSABI_AIX /* Monterey */ + +/* e_ident */ +#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ + (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ + (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ + (ehdr).e_ident[EI_MAG3] == ELFMAG3) + +/* Values for e_type. */ +#define ET_NONE 0 /* Unknown type. */ +#define ET_REL 1 /* Relocatable. */ +#define ET_EXEC 2 /* Executable. */ +#define ET_DYN 3 /* Shared object. */ +#define ET_CORE 4 /* Core file. */ +#define ET_LOOS 0xfe00 /* First operating system specific. */ +#define ET_HIOS 0xfeff /* Last operating system-specific. */ +#define ET_LOPROC 0xff00 /* First processor-specific. */ +#define ET_HIPROC 0xffff /* Last processor-specific. */ + +/* Values for e_machine. */ +#define EM_NONE 0 /* Unknown machine. */ +#define EM_M32 1 /* AT&T WE32100. */ +#define EM_SPARC 2 /* Sun SPARC. */ +#define EM_386 3 /* Intel i386. */ +#define EM_68K 4 /* Motorola 68000. */ +#define EM_88K 5 /* Motorola 88000. */ +#define EM_860 7 /* Intel i860. */ +#define EM_MIPS 8 /* MIPS R3000 Big-Endian only. */ +#define EM_S370 9 /* IBM System/370. */ +#define EM_MIPS_RS3_LE 10 /* MIPS R3000 Little-Endian. */ +#define EM_PARISC 15 /* HP PA-RISC. */ +#define EM_VPP500 17 /* Fujitsu VPP500. */ +#define EM_SPARC32PLUS 18 /* SPARC v8plus. */ +#define EM_960 19 /* Intel 80960. */ +#define EM_PPC 20 /* PowerPC 32-bit. */ +#define EM_PPC64 21 /* PowerPC 64-bit. */ +#define EM_S390 22 /* IBM System/390. */ +#define EM_V800 36 /* NEC V800. */ +#define EM_FR20 37 /* Fujitsu FR20. */ +#define EM_RH32 38 /* TRW RH-32. */ +#define EM_RCE 39 /* Motorola RCE. */ +#define EM_ARM 40 /* ARM. */ +#define EM_SH 42 /* Hitachi SH. */ +#define EM_SPARCV9 43 /* SPARC v9 64-bit. */ +#define EM_TRICORE 44 /* Siemens TriCore embedded processor. */ +#define EM_ARC 45 /* Argonaut RISC Core. */ +#define EM_H8_300 46 /* Hitachi H8/300. */ +#define EM_H8_300H 47 /* Hitachi H8/300H. */ +#define EM_H8S 48 /* Hitachi H8S. */ +#define EM_H8_500 49 /* Hitachi H8/500. */ +#define EM_IA_64 50 /* Intel IA-64 Processor. */ +#define EM_MIPS_X 51 /* Stanford MIPS-X. */ +#define EM_COLDFIRE 52 /* Motorola ColdFire. */ +#define EM_68HC12 53 /* Motorola M68HC12. */ +#define EM_MMA 54 /* Fujitsu MMA. */ +#define EM_PCP 55 /* Siemens PCP. */ +#define EM_NCPU 56 /* Sony nCPU. */ +#define EM_NDR1 57 /* Denso NDR1 microprocessor. */ +#define EM_STARCORE 58 /* Motorola Star*Core processor. */ +#define EM_ME16 59 /* Toyota ME16 processor. */ +#define EM_ST100 60 /* STMicroelectronics ST100 processor. */ +#define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ processor. */ +#define EM_X86_64 62 /* Advanced Micro Devices x86-64 */ +#define EM_AMD64 EM_X86_64 /* Advanced Micro Devices x86-64 (compat) */ + +/* Non-standard or deprecated. */ +#define EM_486 6 /* Intel i486. */ +#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ +#define EM_ALPHA_STD 41 /* Digital Alpha (standard value). */ +#define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI) */ + +/* Special section indexes. */ +#define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */ +#define SHN_LORESERVE 0xff00 /* First of reserved range. */ +#define SHN_LOPROC 0xff00 /* First processor-specific. */ +#define SHN_HIPROC 0xff1f /* Last processor-specific. */ +#define SHN_LOOS 0xff20 /* First operating system-specific. */ +#define SHN_HIOS 0xff3f /* Last operating system-specific. */ +#define SHN_ABS 0xfff1 /* Absolute values. */ +#define SHN_COMMON 0xfff2 /* Common data. */ +#define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere. */ +#define SHN_HIRESERVE 0xffff /* Last of reserved range. */ + +/* sh_type */ +#define SHT_NULL 0 /* inactive */ +#define SHT_PROGBITS 1 /* program defined information */ +#define SHT_SYMTAB 2 /* symbol table section */ +#define SHT_STRTAB 3 /* string table section */ +#define SHT_RELA 4 /* relocation section with addends */ +#define SHT_HASH 5 /* symbol hash table section */ +#define SHT_DYNAMIC 6 /* dynamic section */ +#define SHT_NOTE 7 /* note section */ +#define SHT_NOBITS 8 /* no space section */ +#define SHT_REL 9 /* relocation section - no addends */ +#define SHT_SHLIB 10 /* reserved - purpose unknown */ +#define SHT_DYNSYM 11 /* dynamic symbol table section */ +#define SHT_INIT_ARRAY 14 /* Initialization function pointers. */ +#define SHT_FINI_ARRAY 15 /* Termination function pointers. */ +#define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs. */ +#define SHT_GROUP 17 /* Section group. */ +#define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX). */ +#define SHT_LOOS 0x60000000 /* First of OS specific semantics */ +#define SHT_LOSUNW 0x6ffffff4 +#define SHT_SUNW_dof 0x6ffffff4 +#define SHT_SUNW_cap 0x6ffffff5 +#define SHT_SUNW_SIGNATURE 0x6ffffff6 +#define SHT_SUNW_ANNOTATE 0x6ffffff7 +#define SHT_SUNW_DEBUGSTR 0x6ffffff8 +#define SHT_SUNW_DEBUG 0x6ffffff9 +#define SHT_SUNW_move 0x6ffffffa +#define SHT_SUNW_COMDAT 0x6ffffffb +#define SHT_SUNW_syminfo 0x6ffffffc +#define SHT_SUNW_verdef 0x6ffffffd +#define SHT_GNU_verdef 0x6ffffffd /* Symbol versions provided */ +#define SHT_SUNW_verneed 0x6ffffffe +#define SHT_GNU_verneed 0x6ffffffe /* Symbol versions required */ +#define SHT_SUNW_versym 0x6fffffff +#define SHT_GNU_versym 0x6fffffff /* Symbol version table */ +#define SHT_HISUNW 0x6fffffff +#define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ +#define SHT_LOPROC 0x70000000 /* reserved range for processor */ +#define SHT_AMD64_UNWIND 0x70000001 /* unwind information */ +#define SHT_HIPROC 0x7fffffff /* specific section header types */ +#define SHT_LOUSER 0x80000000 /* reserved range for application */ +#define SHT_HIUSER 0xffffffff /* specific indexes */ + +/* Flags for sh_flags. */ +#define SHF_WRITE 0x1 /* Section contains writable data. */ +#define SHF_ALLOC 0x2 /* Section occupies memory. */ +#define SHF_EXECINSTR 0x4 /* Section contains instructions. */ +#define SHF_MERGE 0x10 /* Section may be merged. */ +#define SHF_STRINGS 0x20 /* Section contains strings. */ +#define SHF_INFO_LINK 0x40 /* sh_info holds section index. */ +#define SHF_LINK_ORDER 0x80 /* Special ordering requirements. */ +#define SHF_OS_NONCONFORMING 0x100 /* OS-specific processing required. */ +#define SHF_GROUP 0x200 /* Member of section group. */ +#define SHF_TLS 0x400 /* Section contains TLS data. */ +#define SHF_MASKOS 0x0ff00000 /* OS-specific semantics. */ +#define SHF_MASKPROC 0xf0000000 /* Processor-specific semantics. */ + +/* Values for p_type. */ +#define PT_NULL 0 /* Unused entry. */ +#define PT_LOAD 1 /* Loadable segment. */ +#define PT_DYNAMIC 2 /* Dynamic linking information segment. */ +#define PT_INTERP 3 /* Pathname of interpreter. */ +#define PT_NOTE 4 /* Auxiliary information. */ +#define PT_SHLIB 5 /* Reserved (not used). */ +#define PT_PHDR 6 /* Location of program header itself. */ +#define PT_TLS 7 /* Thread local storage segment */ +#define PT_LOOS 0x60000000 /* First OS-specific. */ +#define PT_SUNW_UNWIND 0x6464e550 /* amd64 UNWIND program header */ +#define PT_GNU_EH_FRAME 0x6474e550 +#define PT_GNU_STACK 0x6474e551 +#define PT_LOSUNW 0x6ffffffa +#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ +#define PT_SUNWSTACK 0x6ffffffb /* describes the stack segment */ +#define PT_SUNWDTRACE 0x6ffffffc /* private */ +#define PT_SUNWCAP 0x6ffffffd /* hard/soft capabilities segment */ +#define PT_HISUNW 0x6fffffff +#define PT_HIOS 0x6fffffff /* Last OS-specific. */ +#define PT_LOPROC 0x70000000 /* First processor-specific type. */ +#define PT_HIPROC 0x7fffffff /* Last processor-specific type. */ + +/* Values for p_flags. */ +#define PF_X 0x1 /* Executable. */ +#define PF_W 0x2 /* Writable. */ +#define PF_R 0x4 /* Readable. */ +#define PF_MASKOS 0x0ff00000 /* Operating system-specific. */ +#define PF_MASKPROC 0xf0000000 /* Processor-specific. */ + +/* Extended program header index. */ +#define PN_XNUM 0xffff + +/* Values for d_tag. */ +#define DT_NULL 0 /* Terminating entry. */ +#define DT_NEEDED 1 /* String table offset of a needed shared + library. */ +#define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */ +#define DT_PLTGOT 3 /* Processor-dependent address. */ +#define DT_HASH 4 /* Address of symbol hash table. */ +#define DT_STRTAB 5 /* Address of string table. */ +#define DT_SYMTAB 6 /* Address of symbol table. */ +#define DT_RELA 7 /* Address of ElfNN_Rela relocations. */ +#define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */ +#define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */ +#define DT_STRSZ 10 /* Size of string table. */ +#define DT_SYMENT 11 /* Size of each symbol table entry. */ +#define DT_INIT 12 /* Address of initialization function. */ +#define DT_FINI 13 /* Address of finalization function. */ +#define DT_SONAME 14 /* String table offset of shared object + name. */ +#define DT_RPATH 15 /* String table offset of library path. [sup] */ +#define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */ +#define DT_REL 17 /* Address of ElfNN_Rel relocations. */ +#define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */ +#define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */ +#define DT_PLTREL 20 /* Type of relocation used for PLT. */ +#define DT_DEBUG 21 /* Reserved (not used). */ +#define DT_TEXTREL 22 /* Indicates there may be relocations in + non-writable segments. [sup] */ +#define DT_JMPREL 23 /* Address of PLT relocations. */ +#define DT_BIND_NOW 24 /* [sup] */ +#define DT_INIT_ARRAY 25 /* Address of the array of pointers to + initialization functions */ +#define DT_FINI_ARRAY 26 /* Address of the array of pointers to + termination functions */ +#define DT_INIT_ARRAYSZ 27 /* Size in bytes of the array of + initialization functions. */ +#define DT_FINI_ARRAYSZ 28 /* Size in bytes of the array of + terminationfunctions. */ +#define DT_RUNPATH 29 /* String table offset of a null-terminated + library search path string. */ +#define DT_FLAGS 30 /* Object specific flag values. */ +#define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING + and less than DT_LOOS follow the rules for + the interpretation of the d_un union + as follows: even == 'd_ptr', even == 'd_val' + or none */ +#define DT_PREINIT_ARRAY 32 /* Address of the array of pointers to + pre-initialization functions. */ +#define DT_PREINIT_ARRAYSZ 33 /* Size in bytes of the array of + pre-initialization functions. */ +#define DT_MAXPOSTAGS 34 /* number of positive tags */ +#define DT_LOOS 0x6000000d /* First OS-specific */ +#define DT_SUNW_AUXILIARY 0x6000000d /* symbol auxiliary name */ +#define DT_SUNW_RTLDINF 0x6000000e /* ld.so.1 info (private) */ +#define DT_SUNW_FILTER 0x6000000f /* symbol filter name */ +#define DT_SUNW_CAP 0x60000010 /* hardware/software */ +#define DT_HIOS 0x6ffff000 /* Last OS-specific */ + +/* + * DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the + * Dyn.d_un.d_val field of the Elf*_Dyn structure. + */ +#define DT_VALRNGLO 0x6ffffd00 +#define DT_CHECKSUM 0x6ffffdf8 /* elf checksum */ +#define DT_PLTPADSZ 0x6ffffdf9 /* pltpadding size */ +#define DT_MOVEENT 0x6ffffdfa /* move table entry size */ +#define DT_MOVESZ 0x6ffffdfb /* move table size */ +#define DT_FEATURE_1 0x6ffffdfc /* feature holder */ +#define DT_POSFLAG_1 0x6ffffdfd /* flags for DT_* entries, effecting */ + /* the following DT_* entry. */ + /* See DF_P1_* definitions */ +#define DT_SYMINSZ 0x6ffffdfe /* syminfo table size (in bytes) */ +#define DT_SYMINENT 0x6ffffdff /* syminfo entry size (in bytes) */ +#define DT_VALRNGHI 0x6ffffdff + +/* + * DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the + * Dyn.d_un.d_ptr field of the Elf*_Dyn structure. + * + * If any adjustment is made to the ELF object after it has been + * built, these entries will need to be adjusted. + */ +#define DT_ADDRRNGLO 0x6ffffe00 +#define DT_CONFIG 0x6ffffefa /* configuration information */ +#define DT_DEPAUDIT 0x6ffffefb /* dependency auditing */ +#define DT_AUDIT 0x6ffffefc /* object auditing */ +#define DT_PLTPAD 0x6ffffefd /* pltpadding (sparcv9) */ +#define DT_MOVETAB 0x6ffffefe /* move table */ +#define DT_SYMINFO 0x6ffffeff /* syminfo table */ +#define DT_ADDRRNGHI 0x6ffffeff + +#define DT_VERSYM 0x6ffffff0 /* Address of versym section. */ +#define DT_RELACOUNT 0x6ffffff9 /* number of RELATIVE relocations */ +#define DT_RELCOUNT 0x6ffffffa /* number of RELATIVE relocations */ +#define DT_FLAGS_1 0x6ffffffb /* state flags - see DF_1_* defs */ +#define DT_VERDEF 0x6ffffffc /* Address of verdef section. */ +#define DT_VERDEFNUM 0x6ffffffd /* Number of elems in verdef section */ +#define DT_VERNEED 0x6ffffffe /* Address of verneed section. */ +#define DT_VERNEEDNUM 0x6fffffff /* Number of elems in verneed section */ + +#define DT_LOPROC 0x70000000 /* First processor-specific type. */ +#define DT_DEPRECATED_SPARC_REGISTER 0x7000001 +#define DT_AUXILIARY 0x7ffffffd /* shared library auxiliary name */ +#define DT_USED 0x7ffffffe /* ignored - same as needed */ +#define DT_FILTER 0x7fffffff /* shared library filter name */ +#define DT_HIPROC 0x7fffffff /* Last processor-specific type. */ + +/* Values for DT_FLAGS */ +#define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may + make reference to the $ORIGIN substitution + string */ +#define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */ +#define DF_TEXTREL 0x0004 /* Indicates there may be relocations in + non-writable segments. */ +#define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should + process all relocations for the object + containing this entry before transferring + control to the program. */ +#define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or + executable contains code using a static + thread-local storage scheme. */ + +/* Values for n_type. Used in core files. */ +#define NT_PRSTATUS 1 /* Process status. */ +#define NT_FPREGSET 2 /* Floating point registers. */ +#define NT_PRPSINFO 3 /* Process state info. */ + +/* Symbol Binding - ELFNN_ST_BIND - st_info */ +#define STB_LOCAL 0 /* Local symbol */ +#define STB_GLOBAL 1 /* Global symbol */ +#define STB_WEAK 2 /* like global - lower precedence */ +#define STB_LOOS 10 /* Reserved range for operating system */ +#define STB_HIOS 12 /* specific semantics. */ +#define STB_LOPROC 13 /* reserved range for processor */ +#define STB_HIPROC 15 /* specific semantics. */ + +/* Symbol type - ELFNN_ST_TYPE - st_info */ +#define STT_NOTYPE 0 /* Unspecified type. */ +#define STT_OBJECT 1 /* Data object. */ +#define STT_FUNC 2 /* Function. */ +#define STT_SECTION 3 /* Section. */ +#define STT_FILE 4 /* Source file. */ +#define STT_COMMON 5 /* Uninitialized common block. */ +#define STT_TLS 6 /* TLS object. */ +#define STT_NUM 7 +#define STT_LOOS 10 /* Reserved range for operating system */ +#define STT_HIOS 12 /* specific semantics. */ +#define STT_LOPROC 13 /* reserved range for processor */ +#define STT_HIPROC 15 /* specific semantics. */ + +/* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */ +#define STV_DEFAULT 0x0 /* Default visibility (see binding). */ +#define STV_INTERNAL 0x1 /* Special meaning in relocatable objects. */ +#define STV_HIDDEN 0x2 /* Not visible. */ +#define STV_PROTECTED 0x3 /* Visible but not preemptible. */ +#define STV_EXPORTED 0x4 +#define STV_SINGLETON 0x5 +#define STV_ELIMINATE 0x6 + +/* Special symbol table indexes. */ +#define STN_UNDEF 0 /* Undefined symbol index. */ + +/* Symbol versioning flags. */ +#define VER_DEF_CURRENT 1 +#define VER_DEF_IDX(x) VER_NDX(x) + +#define VER_FLG_BASE 0x01 +#define VER_FLG_WEAK 0x02 + +#define VER_NEED_CURRENT 1 +#define VER_NEED_WEAK (1u << 15) +#define VER_NEED_HIDDEN VER_NDX_HIDDEN +#define VER_NEED_IDX(x) VER_NDX(x) + +#define VER_NDX_LOCAL 0 +#define VER_NDX_GLOBAL 1 +#define VER_NDX_GIVEN 2 + +#define VER_NDX_HIDDEN (1u << 15) +#define VER_NDX(x) ((x) & ~(1u << 15)) + +#define CA_SUNW_NULL 0 +#define CA_SUNW_HW_1 1 /* first hardware capabilities entry */ +#define CA_SUNW_SF_1 2 /* first software capabilities entry */ + +/* + * Syminfo flag values + */ +#define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association */ + /* to object containing defn. */ +#define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ +#define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ +#define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be */ + /* lazily-loaded */ +#define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to */ + /* object containing defn. */ +#define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference */ + /* directly bind to this symbol */ +#define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ +#define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ + +/* + * Syminfo.si_boundto values. + */ +#define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ +#define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ +#define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ +#define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ +#define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ + +/* + * Syminfo version values. + */ +#define SYMINFO_NONE 0 /* Syminfo version */ +#define SYMINFO_CURRENT 1 +#define SYMINFO_NUM 2 + +/* + * Relocation types. + * + * All machine architectures are defined here to allow tools on one to + * handle others. + */ + +#define R_386_NONE 0 /* No relocation. */ +#define R_386_32 1 /* Add symbol value. */ +#define R_386_PC32 2 /* Add PC-relative symbol value. */ +#define R_386_GOT32 3 /* Add PC-relative GOT offset. */ +#define R_386_PLT32 4 /* Add PC-relative PLT offset. */ +#define R_386_COPY 5 /* Copy data from shared object. */ +#define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */ +#define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */ +#define R_386_RELATIVE 8 /* Add load address of shared object. */ +#define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */ +#define R_386_GOTPC 10 /* Add PC-relative GOT table address. */ +#define R_386_TLS_TPOFF 14 /* Negative offset in static TLS block */ +#define R_386_TLS_IE 15 /* Absolute address of GOT for -ve static TLS */ +#define R_386_TLS_GOTIE 16 /* GOT entry for negative static TLS block */ +#define R_386_TLS_LE 17 /* Negative offset relative to static TLS */ +#define R_386_TLS_GD 18 /* 32 bit offset to GOT (index,off) pair */ +#define R_386_TLS_LDM 19 /* 32 bit offset to GOT (index,zero) pair */ +#define R_386_TLS_GD_32 24 /* 32 bit offset to GOT (index,off) pair */ +#define R_386_TLS_GD_PUSH 25 /* pushl instruction for Sun ABI GD sequence */ +#define R_386_TLS_GD_CALL 26 /* call instruction for Sun ABI GD sequence */ +#define R_386_TLS_GD_POP 27 /* popl instruction for Sun ABI GD sequence */ +#define R_386_TLS_LDM_32 28 /* 32 bit offset to GOT (index,zero) pair */ +#define R_386_TLS_LDM_PUSH 29 /* pushl instruction for Sun ABI LD sequence */ +#define R_386_TLS_LDM_CALL 30 /* call instruction for Sun ABI LD sequence */ +#define R_386_TLS_LDM_POP 31 /* popl instruction for Sun ABI LD sequence */ +#define R_386_TLS_LDO_32 32 /* 32 bit offset from start of TLS block */ +#define R_386_TLS_IE_32 33 /* 32 bit offset to GOT static TLS offset entry */ +#define R_386_TLS_LE_32 34 /* 32 bit offset within static TLS block */ +#define R_386_TLS_DTPMOD32 35 /* GOT entry containing TLS index */ +#define R_386_TLS_DTPOFF32 36 /* GOT entry containing TLS offset */ +#define R_386_TLS_TPOFF32 37 /* GOT entry of -ve static TLS offset */ + +#define R_ARM_NONE 0 /* No relocation. */ +#define R_ARM_PC24 1 +#define R_ARM_ABS32 2 +#define R_ARM_REL32 3 +#define R_ARM_PC13 4 +#define R_ARM_ABS16 5 +#define R_ARM_ABS12 6 +#define R_ARM_THM_ABS5 7 +#define R_ARM_ABS8 8 +#define R_ARM_SBREL32 9 +#define R_ARM_THM_PC22 10 +#define R_ARM_THM_PC8 11 +#define R_ARM_AMP_VCALL9 12 +#define R_ARM_SWI24 13 +#define R_ARM_THM_SWI8 14 +#define R_ARM_XPC25 15 +#define R_ARM_THM_XPC22 16 +#define R_ARM_COPY 20 /* Copy data from shared object. */ +#define R_ARM_GLOB_DAT 21 /* Set GOT entry to data address. */ +#define R_ARM_JUMP_SLOT 22 /* Set GOT entry to code address. */ +#define R_ARM_RELATIVE 23 /* Add load address of shared object. */ +#define R_ARM_GOTOFF 24 /* Add GOT-relative symbol address. */ +#define R_ARM_GOTPC 25 /* Add PC-relative GOT table address. */ +#define R_ARM_GOT32 26 /* Add PC-relative GOT offset. */ +#define R_ARM_PLT32 27 /* Add PC-relative PLT offset. */ +#define R_ARM_GNU_VTENTRY 100 +#define R_ARM_GNU_VTINHERIT 101 +#define R_ARM_RSBREL32 250 +#define R_ARM_THM_RPC22 251 +#define R_ARM_RREL32 252 +#define R_ARM_RABS32 253 +#define R_ARM_RPC24 254 +#define R_ARM_RBASE 255 + +/* Name Value Field Calculation */ +#define R_IA_64_NONE 0 /* None */ +#define R_IA_64_IMM14 0x21 /* immediate14 S + A */ +#define R_IA_64_IMM22 0x22 /* immediate22 S + A */ +#define R_IA_64_IMM64 0x23 /* immediate64 S + A */ +#define R_IA_64_DIR32MSB 0x24 /* word32 MSB S + A */ +#define R_IA_64_DIR32LSB 0x25 /* word32 LSB S + A */ +#define R_IA_64_DIR64MSB 0x26 /* word64 MSB S + A */ +#define R_IA_64_DIR64LSB 0x27 /* word64 LSB S + A */ +#define R_IA_64_GPREL22 0x2a /* immediate22 @gprel(S + A) */ +#define R_IA_64_GPREL64I 0x2b /* immediate64 @gprel(S + A) */ +#define R_IA_64_GPREL32MSB 0x2c /* word32 MSB @gprel(S + A) */ +#define R_IA_64_GPREL32LSB 0x2d /* word32 LSB @gprel(S + A) */ +#define R_IA_64_GPREL64MSB 0x2e /* word64 MSB @gprel(S + A) */ +#define R_IA_64_GPREL64LSB 0x2f /* word64 LSB @gprel(S + A) */ +#define R_IA_64_LTOFF22 0x32 /* immediate22 @ltoff(S + A) */ +#define R_IA_64_LTOFF64I 0x33 /* immediate64 @ltoff(S + A) */ +#define R_IA_64_PLTOFF22 0x3a /* immediate22 @pltoff(S + A) */ +#define R_IA_64_PLTOFF64I 0x3b /* immediate64 @pltoff(S + A) */ +#define R_IA_64_PLTOFF64MSB 0x3e /* word64 MSB @pltoff(S + A) */ +#define R_IA_64_PLTOFF64LSB 0x3f /* word64 LSB @pltoff(S + A) */ +#define R_IA_64_FPTR64I 0x43 /* immediate64 @fptr(S + A) */ +#define R_IA_64_FPTR32MSB 0x44 /* word32 MSB @fptr(S + A) */ +#define R_IA_64_FPTR32LSB 0x45 /* word32 LSB @fptr(S + A) */ +#define R_IA_64_FPTR64MSB 0x46 /* word64 MSB @fptr(S + A) */ +#define R_IA_64_FPTR64LSB 0x47 /* word64 LSB @fptr(S + A) */ +#define R_IA_64_PCREL60B 0x48 /* immediate60 form1 S + A - P */ +#define R_IA_64_PCREL21B 0x49 /* immediate21 form1 S + A - P */ +#define R_IA_64_PCREL21M 0x4a /* immediate21 form2 S + A - P */ +#define R_IA_64_PCREL21F 0x4b /* immediate21 form3 S + A - P */ +#define R_IA_64_PCREL32MSB 0x4c /* word32 MSB S + A - P */ +#define R_IA_64_PCREL32LSB 0x4d /* word32 LSB S + A - P */ +#define R_IA_64_PCREL64MSB 0x4e /* word64 MSB S + A - P */ +#define R_IA_64_PCREL64LSB 0x4f /* word64 LSB S + A - P */ +#define R_IA_64_LTOFF_FPTR22 0x52 /* immediate22 @ltoff(@fptr(S + A)) */ +#define R_IA_64_LTOFF_FPTR64I 0x53 /* immediate64 @ltoff(@fptr(S + A)) */ +#define R_IA_64_LTOFF_FPTR32MSB 0x54 /* word32 MSB @ltoff(@fptr(S + A)) */ +#define R_IA_64_LTOFF_FPTR32LSB 0x55 /* word32 LSB @ltoff(@fptr(S + A)) */ +#define R_IA_64_LTOFF_FPTR64MSB 0x56 /* word64 MSB @ltoff(@fptr(S + A)) */ +#define R_IA_64_LTOFF_FPTR64LSB 0x57 /* word64 LSB @ltoff(@fptr(S + A)) */ +#define R_IA_64_SEGREL32MSB 0x5c /* word32 MSB @segrel(S + A) */ +#define R_IA_64_SEGREL32LSB 0x5d /* word32 LSB @segrel(S + A) */ +#define R_IA_64_SEGREL64MSB 0x5e /* word64 MSB @segrel(S + A) */ +#define R_IA_64_SEGREL64LSB 0x5f /* word64 LSB @segrel(S + A) */ +#define R_IA_64_SECREL32MSB 0x64 /* word32 MSB @secrel(S + A) */ +#define R_IA_64_SECREL32LSB 0x65 /* word32 LSB @secrel(S + A) */ +#define R_IA_64_SECREL64MSB 0x66 /* word64 MSB @secrel(S + A) */ +#define R_IA_64_SECREL64LSB 0x67 /* word64 LSB @secrel(S + A) */ +#define R_IA_64_REL32MSB 0x6c /* word32 MSB BD + A */ +#define R_IA_64_REL32LSB 0x6d /* word32 LSB BD + A */ +#define R_IA_64_REL64MSB 0x6e /* word64 MSB BD + A */ +#define R_IA_64_REL64LSB 0x6f /* word64 LSB BD + A */ +#define R_IA_64_LTV32MSB 0x74 /* word32 MSB S + A */ +#define R_IA_64_LTV32LSB 0x75 /* word32 LSB S + A */ +#define R_IA_64_LTV64MSB 0x76 /* word64 MSB S + A */ +#define R_IA_64_LTV64LSB 0x77 /* word64 LSB S + A */ +#define R_IA_64_PCREL21BI 0x79 /* immediate21 form1 S + A - P */ +#define R_IA_64_PCREL22 0x7a /* immediate22 S + A - P */ +#define R_IA_64_PCREL64I 0x7b /* immediate64 S + A - P */ +#define R_IA_64_IPLTMSB 0x80 /* function descriptor MSB special */ +#define R_IA_64_IPLTLSB 0x81 /* function descriptor LSB speciaal */ +#define R_IA_64_SUB 0x85 /* immediate64 A - S */ +#define R_IA_64_LTOFF22X 0x86 /* immediate22 special */ +#define R_IA_64_LDXMOV 0x87 /* immediate22 special */ +#define R_IA_64_TPREL14 0x91 /* imm14 @tprel(S + A) */ +#define R_IA_64_TPREL22 0x92 /* imm22 @tprel(S + A) */ +#define R_IA_64_TPREL64I 0x93 /* imm64 @tprel(S + A) */ +#define R_IA_64_TPREL64MSB 0x96 /* word64 MSB @tprel(S + A) */ +#define R_IA_64_TPREL64LSB 0x97 /* word64 LSB @tprel(S + A) */ +#define R_IA_64_LTOFF_TPREL22 0x9a /* imm22 @ltoff(@tprel(S+A)) */ +#define R_IA_64_DTPMOD64MSB 0xa6 /* word64 MSB @dtpmod(S + A) */ +#define R_IA_64_DTPMOD64LSB 0xa7 /* word64 LSB @dtpmod(S + A) */ +#define R_IA_64_LTOFF_DTPMOD22 0xaa /* imm22 @ltoff(@dtpmod(S+A)) */ +#define R_IA_64_DTPREL14 0xb1 /* imm14 @dtprel(S + A) */ +#define R_IA_64_DTPREL22 0xb2 /* imm22 @dtprel(S + A) */ +#define R_IA_64_DTPREL64I 0xb3 /* imm64 @dtprel(S + A) */ +#define R_IA_64_DTPREL32MSB 0xb4 /* word32 MSB @dtprel(S + A) */ +#define R_IA_64_DTPREL32LSB 0xb5 /* word32 LSB @dtprel(S + A) */ +#define R_IA_64_DTPREL64MSB 0xb6 /* word64 MSB @dtprel(S + A) */ +#define R_IA_64_DTPREL64LSB 0xb7 /* word64 LSB @dtprel(S + A) */ +#define R_IA_64_LTOFF_DTPREL22 0xba /* imm22 @ltoff(@dtprel(S+A)) */ + +#define R_MIPS_NONE 0 /* No reloc */ +#define R_MIPS_16 1 /* Direct 16 bit */ +#define R_MIPS_32 2 /* Direct 32 bit */ +#define R_MIPS_REL32 3 /* PC relative 32 bit */ +#define R_MIPS_26 4 /* Direct 26 bit shifted */ +#define R_MIPS_HI16 5 /* High 16 bit */ +#define R_MIPS_LO16 6 /* Low 16 bit */ +#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ +#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ +#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ +#define R_MIPS_PC16 10 /* PC relative 16 bit */ +#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ +#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ +#define R_MIPS_GOTHI16 21 /* GOT HI 16 bit */ +#define R_MIPS_GOTLO16 22 /* GOT LO 16 bit */ +#define R_MIPS_CALLHI16 30 /* upper 16 bit GOT entry for function */ +#define R_MIPS_CALLLO16 31 /* lower 16 bit GOT entry for function */ + +#define R_PPC_NONE 0 /* No relocation. */ +#define R_PPC_ADDR32 1 +#define R_PPC_ADDR24 2 +#define R_PPC_ADDR16 3 +#define R_PPC_ADDR16_LO 4 +#define R_PPC_ADDR16_HI 5 +#define R_PPC_ADDR16_HA 6 +#define R_PPC_ADDR14 7 +#define R_PPC_ADDR14_BRTAKEN 8 +#define R_PPC_ADDR14_BRNTAKEN 9 +#define R_PPC_REL24 10 +#define R_PPC_REL14 11 +#define R_PPC_REL14_BRTAKEN 12 +#define R_PPC_REL14_BRNTAKEN 13 +#define R_PPC_GOT16 14 +#define R_PPC_GOT16_LO 15 +#define R_PPC_GOT16_HI 16 +#define R_PPC_GOT16_HA 17 +#define R_PPC_PLTREL24 18 +#define R_PPC_COPY 19 +#define R_PPC_GLOB_DAT 20 +#define R_PPC_JMP_SLOT 21 +#define R_PPC_RELATIVE 22 +#define R_PPC_LOCAL24PC 23 +#define R_PPC_UADDR32 24 +#define R_PPC_UADDR16 25 +#define R_PPC_REL32 26 +#define R_PPC_PLT32 27 +#define R_PPC_PLTREL32 28 +#define R_PPC_PLT16_LO 29 +#define R_PPC_PLT16_HI 30 +#define R_PPC_PLT16_HA 31 +#define R_PPC_SDAREL16 32 +#define R_PPC_SECTOFF 33 +#define R_PPC_SECTOFF_LO 34 +#define R_PPC_SECTOFF_HI 35 +#define R_PPC_SECTOFF_HA 36 + +/* + * TLS relocations + */ +#define R_PPC_TLS 67 +#define R_PPC_DTPMOD32 68 +#define R_PPC_TPREL16 69 +#define R_PPC_TPREL16_LO 70 +#define R_PPC_TPREL16_HI 71 +#define R_PPC_TPREL16_HA 72 +#define R_PPC_TPREL32 73 +#define R_PPC_DTPREL16 74 +#define R_PPC_DTPREL16_LO 75 +#define R_PPC_DTPREL16_HI 76 +#define R_PPC_DTPREL16_HA 77 +#define R_PPC_DTPREL32 78 +#define R_PPC_GOT_TLSGD16 79 +#define R_PPC_GOT_TLSGD16_LO 80 +#define R_PPC_GOT_TLSGD16_HI 81 +#define R_PPC_GOT_TLSGD16_HA 82 +#define R_PPC_GOT_TLSLD16 83 +#define R_PPC_GOT_TLSLD16_LO 84 +#define R_PPC_GOT_TLSLD16_HI 85 +#define R_PPC_GOT_TLSLD16_HA 86 +#define R_PPC_GOT_TPREL16 87 +#define R_PPC_GOT_TPREL16_LO 88 +#define R_PPC_GOT_TPREL16_HI 89 +#define R_PPC_GOT_TPREL16_HA 90 + +/* + * The remaining relocs are from the Embedded ELF ABI, and are not in the + * SVR4 ELF ABI. + */ + +#define R_PPC_EMB_NADDR32 101 +#define R_PPC_EMB_NADDR16 102 +#define R_PPC_EMB_NADDR16_LO 103 +#define R_PPC_EMB_NADDR16_HI 104 +#define R_PPC_EMB_NADDR16_HA 105 +#define R_PPC_EMB_SDAI16 106 +#define R_PPC_EMB_SDA2I16 107 +#define R_PPC_EMB_SDA2REL 108 +#define R_PPC_EMB_SDA21 109 +#define R_PPC_EMB_MRKREF 110 +#define R_PPC_EMB_RELSEC16 111 +#define R_PPC_EMB_RELST_LO 112 +#define R_PPC_EMB_RELST_HI 113 +#define R_PPC_EMB_RELST_HA 114 +#define R_PPC_EMB_BIT_FLD 115 +#define R_PPC_EMB_RELSDA 116 + +#define R_SPARC_NONE 0 +#define R_SPARC_8 1 +#define R_SPARC_16 2 +#define R_SPARC_32 3 +#define R_SPARC_DISP8 4 +#define R_SPARC_DISP16 5 +#define R_SPARC_DISP32 6 +#define R_SPARC_WDISP30 7 +#define R_SPARC_WDISP22 8 +#define R_SPARC_HI22 9 +#define R_SPARC_22 10 +#define R_SPARC_13 11 +#define R_SPARC_LO10 12 +#define R_SPARC_GOT10 13 +#define R_SPARC_GOT13 14 +#define R_SPARC_GOT22 15 +#define R_SPARC_PC10 16 +#define R_SPARC_PC22 17 +#define R_SPARC_WPLT30 18 +#define R_SPARC_COPY 19 +#define R_SPARC_GLOB_DAT 20 +#define R_SPARC_JMP_SLOT 21 +#define R_SPARC_RELATIVE 22 +#define R_SPARC_UA32 23 +#define R_SPARC_PLT32 24 +#define R_SPARC_HIPLT22 25 +#define R_SPARC_LOPLT10 26 +#define R_SPARC_PCPLT32 27 +#define R_SPARC_PCPLT22 28 +#define R_SPARC_PCPLT10 29 +#define R_SPARC_10 30 +#define R_SPARC_11 31 +#define R_SPARC_64 32 +#define R_SPARC_OLO10 33 +#define R_SPARC_HH22 34 +#define R_SPARC_HM10 35 +#define R_SPARC_LM22 36 +#define R_SPARC_PC_HH22 37 +#define R_SPARC_PC_HM10 38 +#define R_SPARC_PC_LM22 39 +#define R_SPARC_WDISP16 40 +#define R_SPARC_WDISP19 41 +#define R_SPARC_GLOB_JMP 42 +#define R_SPARC_7 43 +#define R_SPARC_5 44 +#define R_SPARC_6 45 +#define R_SPARC_DISP64 46 +#define R_SPARC_PLT64 47 +#define R_SPARC_HIX22 48 +#define R_SPARC_LOX10 49 +#define R_SPARC_H44 50 +#define R_SPARC_M44 51 +#define R_SPARC_L44 52 +#define R_SPARC_REGISTER 53 +#define R_SPARC_UA64 54 +#define R_SPARC_UA16 55 +#define R_SPARC_TLS_GD_HI22 56 +#define R_SPARC_TLS_GD_LO10 57 +#define R_SPARC_TLS_GD_ADD 58 +#define R_SPARC_TLS_GD_CALL 59 +#define R_SPARC_TLS_LDM_HI22 60 +#define R_SPARC_TLS_LDM_LO10 61 +#define R_SPARC_TLS_LDM_ADD 62 +#define R_SPARC_TLS_LDM_CALL 63 +#define R_SPARC_TLS_LDO_HIX22 64 +#define R_SPARC_TLS_LDO_LOX10 65 +#define R_SPARC_TLS_LDO_ADD 66 +#define R_SPARC_TLS_IE_HI22 67 +#define R_SPARC_TLS_IE_LO10 68 +#define R_SPARC_TLS_IE_LD 69 +#define R_SPARC_TLS_IE_LDX 70 +#define R_SPARC_TLS_IE_ADD 71 +#define R_SPARC_TLS_LE_HIX22 72 +#define R_SPARC_TLS_LE_LOX10 73 +#define R_SPARC_TLS_DTPMOD32 74 +#define R_SPARC_TLS_DTPMOD64 75 +#define R_SPARC_TLS_DTPOFF32 76 +#define R_SPARC_TLS_DTPOFF64 77 +#define R_SPARC_TLS_TPOFF32 78 +#define R_SPARC_TLS_TPOFF64 79 + +#define R_X86_64_NONE 0 /* No relocation. */ +#define R_X86_64_64 1 /* Add 64 bit symbol value. */ +#define R_X86_64_PC32 2 /* PC-relative 32 bit signed sym value. */ +#define R_X86_64_GOT32 3 /* PC-relative 32 bit GOT offset. */ +#define R_X86_64_PLT32 4 /* PC-relative 32 bit PLT offset. */ +#define R_X86_64_COPY 5 /* Copy data from shared object. */ +#define R_X86_64_GLOB_DAT 6 /* Set GOT entry to data address. */ +#define R_X86_64_JMP_SLOT 7 /* Set GOT entry to code address. */ +#define R_X86_64_RELATIVE 8 /* Add load address of shared object. */ +#define R_X86_64_GOTPCREL 9 /* Add 32 bit signed pcrel offset to GOT. */ +#define R_X86_64_32 10 /* Add 32 bit zero extended symbol value */ +#define R_X86_64_32S 11 /* Add 32 bit sign extended symbol value */ +#define R_X86_64_16 12 /* Add 16 bit zero extended symbol value */ +#define R_X86_64_PC16 13 /* Add 16 bit signed extended pc relative symbol value */ +#define R_X86_64_8 14 /* Add 8 bit zero extended symbol value */ +#define R_X86_64_PC8 15 /* Add 8 bit signed extended pc relative symbol value */ +#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ +#define R_X86_64_DTPOFF64 17 /* Offset in TLS block */ +#define R_X86_64_TPOFF64 18 /* Offset in static TLS block */ +#define R_X86_64_TLSGD 19 /* PC relative offset to GD GOT entry */ +#define R_X86_64_TLSLD 20 /* PC relative offset to LD GOT entry */ +#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ +#define R_X86_64_GOTTPOFF 22 /* PC relative offset to IE GOT entry */ +#define R_X86_64_TPOFF32 23 /* Offset in static TLS block */ + + +#endif /* !_SYS_ELF_COMMON_H_ */ diff --git a/src/coreclr/src/pal/src/libunwind_mac/include/ucontext.h b/src/coreclr/src/pal/src/libunwind_mac/include/ucontext.h new file mode 100644 index 0000000000000..e759833309e8f --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/include/ucontext.h @@ -0,0 +1,47 @@ +/* Copyright (C) 2004 Hewlett-Packard Co. + Contributed by David Mosberger-Tang . + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#define UC_MCONTEXT_GREGS_R8 0x28 +#define UC_MCONTEXT_GREGS_R9 0x30 +#define UC_MCONTEXT_GREGS_R10 0x38 +#define UC_MCONTEXT_GREGS_R11 0x40 +#define UC_MCONTEXT_GREGS_R12 0x48 +#define UC_MCONTEXT_GREGS_R13 0x50 +#define UC_MCONTEXT_GREGS_R14 0x58 +#define UC_MCONTEXT_GREGS_R15 0x60 +#define UC_MCONTEXT_GREGS_RDI 0x68 +#define UC_MCONTEXT_GREGS_RSI 0x70 +#define UC_MCONTEXT_GREGS_RBP 0x78 +#define UC_MCONTEXT_GREGS_RBX 0x80 +#define UC_MCONTEXT_GREGS_RDX 0x88 +#define UC_MCONTEXT_GREGS_RAX 0x90 +#define UC_MCONTEXT_GREGS_RCX 0x98 +#define UC_MCONTEXT_GREGS_RSP 0xa0 +#define UC_MCONTEXT_GREGS_RIP 0xa8 +#define UC_MCONTEXT_FPREGS_PTR 0x1a8 +#define UC_MCONTEXT_FPREGS_MEM 0xe0 +#define UC_SIGMASK 0x128 +#define FPREGS_OFFSET_MXCSR 0x18 + +#include diff --git a/src/coreclr/src/pal/src/libunwind_mac/src/missing-functions.c b/src/coreclr/src/pal/src/libunwind_mac/src/missing-functions.c new file mode 100644 index 0000000000000..8399214e49520 --- /dev/null +++ b/src/coreclr/src/pal/src/libunwind_mac/src/missing-functions.c @@ -0,0 +1,61 @@ +/* libunwind - a platform-independent unwind library + Copyright (c) 2003, 2005 Hewlett-Packard Development Company, L.P. + Contributed by David Mosberger-Tang + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +// This is minimal implementation functions files required to cross compile +// libunwind on MacOS for UNW_REMOTE_ONLY application. + +#include +#include +#include +#include +#include "libunwind_i.h" +#include "compiler.h" + +unw_addr_space_t UNW_OBJ(local_addr_space); + +unw_accessors_t * +unw_get_accessors (unw_addr_space_t as) +{ + if (!atomic_load(&tdep_init_done)) + tdep_init (); + return &as->acc; +} + +unw_accessors_t * +unw_get_accessors_int (unw_addr_space_t as) +{ + return unw_get_accessors(as); +} + +int +unw_is_signal_frame (unw_cursor_t *cursor) +{ + struct cursor *c = (struct cursor *) cursor; + return c->sigcontext_format != X86_64_SCF_NONE; +} + +int +UNW_OBJ(handle_signal_frame) (unw_cursor_t *cursor) +{ + return -UNW_EBADFRAME; +} diff --git a/src/coreclr/src/vm/method.cpp b/src/coreclr/src/vm/method.cpp index c8d3f6cb7aa9a..9c247d6284a09 100644 --- a/src/coreclr/src/vm/method.cpp +++ b/src/coreclr/src/vm/method.cpp @@ -5594,7 +5594,15 @@ MethodDesc::EnumMemoryRegions(CLRDataEnumMemoryFlags flags) #ifdef FEATURE_CODE_VERSIONING // Make sure the active IL and native code version are in triage dumps. - GetCodeVersionManager()->GetActiveILCodeVersion(dac_cast(this)).GetActiveNativeCodeVersion(dac_cast(this)); + CodeVersionManager* pCodeVersionManager = GetCodeVersionManager(); + ILCodeVersion ilVersion = pCodeVersionManager->GetActiveILCodeVersion(dac_cast(this)); + if (!ilVersion.IsNull()) + { + ilVersion.GetActiveNativeCodeVersion(dac_cast(this)); + ilVersion.GetVersionId(); + ilVersion.GetRejitState(); + ilVersion.GetIL(); + } #endif // Also, call DacValidateMD to dump the memory it needs. !clrstack calls