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