| /** |
| * The runtime module exposes information specific to the D runtime code. |
| * |
| * Copyright: Copyright Sean Kelly 2005 - 2009. |
| * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0) |
| * Authors: Sean Kelly |
| * Source: $(DRUNTIMESRC core/_runtime.d) |
| */ |
| |
| /* Copyright Sean Kelly 2005 - 2009. |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE or copy at |
| * http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| |
| /* NOTE: This file has been patched from the original DMD distribution to |
| * work with the GDC compiler. |
| */ |
| module core.runtime; |
| |
| version (Windows) import core.stdc.wchar_ : wchar_t; |
| |
| version (OSX) |
| version = Darwin; |
| else version (iOS) |
| version = Darwin; |
| else version (TVOS) |
| version = Darwin; |
| else version (WatchOS) |
| version = Darwin; |
| |
| /// C interface for Runtime.loadLibrary |
| extern (C) void* rt_loadLibrary(const char* name); |
| /// ditto |
| version (Windows) extern (C) void* rt_loadLibraryW(const wchar_t* name); |
| /// C interface for Runtime.unloadLibrary, returns 1/0 instead of bool |
| extern (C) int rt_unloadLibrary(void* ptr); |
| |
| /// C interface for Runtime.initialize, returns 1/0 instead of bool |
| extern(C) int rt_init(); |
| /// C interface for Runtime.terminate, returns 1/0 instead of bool |
| extern(C) int rt_term(); |
| |
| private |
| { |
| alias bool function() ModuleUnitTester; |
| alias bool function(Object) CollectHandler; |
| alias Throwable.TraceInfo function( void* ptr ) TraceHandler; |
| |
| extern (C) void rt_setCollectHandler( CollectHandler h ); |
| extern (C) CollectHandler rt_getCollectHandler(); |
| |
| extern (C) void rt_setTraceHandler( TraceHandler h ); |
| extern (C) TraceHandler rt_getTraceHandler(); |
| |
| alias void delegate( Throwable ) ExceptionHandler; |
| extern (C) void _d_print_throwable(Throwable t); |
| |
| extern (C) void* thread_stackBottom(); |
| |
| extern (C) string[] rt_args(); |
| extern (C) CArgs rt_cArgs() @nogc; |
| } |
| |
| |
| static this() |
| { |
| // NOTE: Some module ctors will run before this handler is set, so it's |
| // still possible the app could exit without a stack trace. If |
| // this becomes an issue, the handler could be set in C main |
| // before the module ctors are run. |
| Runtime.traceHandler = &defaultTraceHandler; |
| } |
| |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Runtime |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| /** |
| * Stores the unprocessed arguments supplied when the |
| * process was started. |
| */ |
| struct CArgs |
| { |
| int argc; /// The argument count. |
| char** argv; /// The arguments as a C array of strings. |
| } |
| |
| /** |
| * This struct encapsulates all functionality related to the underlying runtime |
| * module for the calling context. |
| */ |
| struct Runtime |
| { |
| /** |
| * Initializes the runtime. This call is to be used in instances where the |
| * standard program initialization process is not executed. This is most |
| * often in shared libraries or in libraries linked to a C program. |
| * If the runtime was already successfully initialized this returns true. |
| * Each call to initialize must be paired by a call to $(LREF terminate). |
| * |
| * Returns: |
| * true if initialization succeeded or false if initialization failed. |
| */ |
| static bool initialize() |
| { |
| return !!rt_init(); |
| } |
| |
| deprecated("Please use the overload of Runtime.initialize that takes no argument.") |
| static bool initialize(ExceptionHandler dg = null) |
| { |
| return !!rt_init(); |
| } |
| |
| |
| /** |
| * Terminates the runtime. This call is to be used in instances where the |
| * standard program termination process will not be not executed. This is |
| * most often in shared libraries or in libraries linked to a C program. |
| * If the runtime was not successfully initialized the function returns false. |
| * |
| * Returns: |
| * true if termination succeeded or false if termination failed. |
| */ |
| static bool terminate() |
| { |
| return !!rt_term(); |
| } |
| |
| deprecated("Please use the overload of Runtime.terminate that takes no argument.") |
| static bool terminate(ExceptionHandler dg = null) |
| { |
| return !!rt_term(); |
| } |
| |
| |
| /** |
| * Returns the arguments supplied when the process was started. |
| * |
| * Returns: |
| * The arguments supplied when this process was started. |
| */ |
| static @property string[] args() |
| { |
| return rt_args(); |
| } |
| |
| /** |
| * Returns the unprocessed C arguments supplied when the process was started. |
| * Use this when you need to supply argc and argv to C libraries. |
| * |
| * Returns: |
| * A $(LREF CArgs) struct with the arguments supplied when this process was started. |
| * |
| * Example: |
| * --- |
| * import core.runtime; |
| * |
| * // A C library function requiring char** arguments |
| * extern(C) void initLibFoo(int argc, char** argv); |
| * |
| * void main() |
| * { |
| * auto args = Runtime.cArgs; |
| * initLibFoo(args.argc, args.argv); |
| * } |
| * --- |
| */ |
| static @property CArgs cArgs() @nogc |
| { |
| return rt_cArgs(); |
| } |
| |
| /** |
| * Locates a dynamic library with the supplied library name and dynamically |
| * loads it into the caller's address space. If the library contains a D |
| * runtime it will be integrated with the current runtime. |
| * |
| * Params: |
| * name = The name of the dynamic library to load. |
| * |
| * Returns: |
| * A reference to the library or null on error. |
| */ |
| static void* loadLibrary()(in char[] name) |
| { |
| import core.stdc.stdlib : free, malloc; |
| version (Windows) |
| { |
| import core.sys.windows.windows; |
| |
| if (name.length == 0) return null; |
| // Load a DLL at runtime |
| auto len = MultiByteToWideChar( |
| CP_UTF8, 0, name.ptr, cast(int)name.length, null, 0); |
| if (len == 0) |
| return null; |
| |
| auto buf = cast(wchar_t*)malloc((len+1) * wchar_t.sizeof); |
| if (buf is null) return null; |
| scope (exit) free(buf); |
| |
| len = MultiByteToWideChar( |
| CP_UTF8, 0, name.ptr, cast(int)name.length, buf, len); |
| if (len == 0) |
| return null; |
| |
| buf[len] = '\0'; |
| |
| return rt_loadLibraryW(buf); |
| } |
| else version (Posix) |
| { |
| /* Need a 0-terminated C string for the dll name |
| */ |
| immutable len = name.length; |
| auto buf = cast(char*)malloc(len + 1); |
| if (!buf) return null; |
| scope (exit) free(buf); |
| |
| buf[0 .. len] = name[]; |
| buf[len] = 0; |
| |
| return rt_loadLibrary(buf); |
| } |
| } |
| |
| |
| /** |
| * Unloads the dynamic library referenced by p. If this library contains a |
| * D runtime then any necessary finalization or cleanup of that runtime |
| * will be performed. |
| * |
| * Params: |
| * p = A reference to the library to unload. |
| */ |
| static bool unloadLibrary()(void* p) |
| { |
| return !!rt_unloadLibrary(p); |
| } |
| |
| |
| /** |
| * Overrides the default trace mechanism with a user-supplied version. A |
| * trace represents the context from which an exception was thrown, and the |
| * trace handler will be called when this occurs. The pointer supplied to |
| * this routine indicates the base address from which tracing should occur. |
| * If the supplied pointer is null then the trace routine should determine |
| * an appropriate calling context from which to begin the trace. |
| * |
| * Params: |
| * h = The new trace handler. Set to null to use the default handler. |
| */ |
| static @property void traceHandler( TraceHandler h ) |
| { |
| rt_setTraceHandler( h ); |
| } |
| |
| /** |
| * Gets the current trace handler. |
| * |
| * Returns: |
| * The current trace handler or null if none has been set. |
| */ |
| static @property TraceHandler traceHandler() |
| { |
| return rt_getTraceHandler(); |
| } |
| |
| /** |
| * Overrides the default collect hander with a user-supplied version. This |
| * routine will be called for each resource object that is finalized in a |
| * non-deterministic manner--typically during a garbage collection cycle. |
| * If the supplied routine returns true then the object's dtor will called |
| * as normal, but if the routine returns false than the dtor will not be |
| * called. The default behavior is for all object dtors to be called. |
| * |
| * Params: |
| * h = The new collect handler. Set to null to use the default handler. |
| */ |
| static @property void collectHandler( CollectHandler h ) |
| { |
| rt_setCollectHandler( h ); |
| } |
| |
| |
| /** |
| * Gets the current collect handler. |
| * |
| * Returns: |
| * The current collect handler or null if none has been set. |
| */ |
| static @property CollectHandler collectHandler() |
| { |
| return rt_getCollectHandler(); |
| } |
| |
| |
| /** |
| * Overrides the default module unit tester with a user-supplied version. |
| * This routine will be called once on program initialization. The return |
| * value of this routine indicates to the runtime whether the tests ran |
| * without error. |
| * |
| * Params: |
| * h = The new unit tester. Set to null to use the default unit tester. |
| * |
| * Example: |
| * --------- |
| * version (unittest) shared static this() |
| * { |
| * import core.runtime; |
| * |
| * Runtime.moduleUnitTester = &customModuleUnitTester; |
| * } |
| * |
| * bool customModuleUnitTester() |
| * { |
| * import std.stdio; |
| * |
| * writeln("Using customModuleUnitTester"); |
| * |
| * // Do the same thing as the default moduleUnitTester: |
| * size_t failed = 0; |
| * foreach (m; ModuleInfo) |
| * { |
| * if (m) |
| * { |
| * auto fp = m.unitTest; |
| * |
| * if (fp) |
| * { |
| * try |
| * { |
| * fp(); |
| * } |
| * catch (Throwable e) |
| * { |
| * writeln(e); |
| * failed++; |
| * } |
| * } |
| * } |
| * } |
| * return failed == 0; |
| * } |
| * --------- |
| */ |
| static @property void moduleUnitTester( ModuleUnitTester h ) |
| { |
| sm_moduleUnitTester = h; |
| } |
| |
| |
| /** |
| * Gets the current module unit tester. |
| * |
| * Returns: |
| * The current module unit tester handler or null if none has been set. |
| */ |
| static @property ModuleUnitTester moduleUnitTester() |
| { |
| return sm_moduleUnitTester; |
| } |
| |
| |
| private: |
| |
| // NOTE: This field will only ever be set in a static ctor and should |
| // never occur within any but the main thread, so it is safe to |
| // make it __gshared. |
| __gshared ModuleUnitTester sm_moduleUnitTester = null; |
| } |
| |
| /** |
| * Set source file path for coverage reports. |
| * |
| * Params: |
| * path = The new path name. |
| * Note: |
| * This is a dmd specific setting. |
| */ |
| extern (C) void dmd_coverSourcePath(string path); |
| |
| /** |
| * Set output path for coverage reports. |
| * |
| * Params: |
| * path = The new path name. |
| * Note: |
| * This is a dmd specific setting. |
| */ |
| extern (C) void dmd_coverDestPath(string path); |
| |
| /** |
| * Enable merging of coverage reports with existing data. |
| * |
| * Params: |
| * flag = enable/disable coverage merge mode |
| * Note: |
| * This is a dmd specific setting. |
| */ |
| extern (C) void dmd_coverSetMerge(bool flag); |
| |
| /** |
| * Set the output file name for profile reports (-profile switch). |
| * An empty name will set the output to stdout. |
| * |
| * Params: |
| * name = file name |
| * Note: |
| * This is a dmd specific setting. |
| */ |
| extern (C) void trace_setlogfilename(string name); |
| |
| /** |
| * Set the output file name for the optimized profile linker DEF file (-profile switch). |
| * An empty name will set the output to stdout. |
| * |
| * Params: |
| * name = file name |
| * Note: |
| * This is a dmd specific setting. |
| */ |
| extern (C) void trace_setdeffilename(string name); |
| |
| /** |
| * Set the output file name for memory profile reports (-profile=gc switch). |
| * An empty name will set the output to stdout. |
| * |
| * Params: |
| * name = file name |
| * Note: |
| * This is a dmd specific setting. |
| */ |
| extern (C) void profilegc_setlogfilename(string name); |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Overridable Callbacks |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| |
| /** |
| * This routine is called by the runtime to run module unit tests on startup. |
| * The user-supplied unit tester will be called if one has been supplied, |
| * otherwise all unit tests will be run in sequence. |
| * |
| * Returns: |
| * true if execution should continue after testing is complete and false if |
| * not. Default behavior is to return true. |
| */ |
| extern (C) bool runModuleUnitTests() |
| { |
| // backtrace |
| version (GNU) |
| import gcc.backtrace; |
| version (CRuntime_Glibc) |
| import core.sys.linux.execinfo; |
| else version (Darwin) |
| import core.sys.darwin.execinfo; |
| else version (FreeBSD) |
| import core.sys.freebsd.execinfo; |
| else version (NetBSD) |
| import core.sys.netbsd.execinfo; |
| else version (DragonFlyBSD) |
| import core.sys.dragonflybsd.execinfo; |
| else version (Windows) |
| import core.sys.windows.stacktrace; |
| else version (Solaris) |
| import core.sys.solaris.execinfo; |
| else version (CRuntime_UClibc) |
| import core.sys.linux.execinfo; |
| |
| static if ( __traits( compiles, new LibBacktrace(0) ) ) |
| { |
| import core.sys.posix.signal; // segv handler |
| |
| static extern (C) void unittestSegvHandler( int signum, siginfo_t* info, void* ptr ) |
| { |
| import core.stdc.stdio; |
| fprintf(stderr, "Segmentation fault while running unittests:\n"); |
| fprintf(stderr, "----------------\n"); |
| |
| // First frame is LibBacktrace ctor. Second is signal handler, |
| // but include that for now |
| scope bt = new LibBacktrace(1); |
| |
| foreach (size_t i, const(char[]) msg; bt) |
| fprintf(stderr, "%s\n", msg.ptr ? msg.ptr : "???"); |
| } |
| |
| sigaction_t action = void; |
| sigaction_t oldseg = void; |
| sigaction_t oldbus = void; |
| |
| (cast(byte*) &action)[0 .. action.sizeof] = 0; |
| sigfillset( &action.sa_mask ); // block other signals |
| action.sa_flags = SA_SIGINFO | SA_RESETHAND; |
| action.sa_sigaction = &unittestSegvHandler; |
| sigaction( SIGSEGV, &action, &oldseg ); |
| sigaction( SIGBUS, &action, &oldbus ); |
| scope( exit ) |
| { |
| sigaction( SIGSEGV, &oldseg, null ); |
| sigaction( SIGBUS, &oldbus, null ); |
| } |
| } |
| else static if ( __traits( compiles, backtrace ) ) |
| { |
| import core.sys.posix.signal; // segv handler |
| |
| static extern (C) void unittestSegvHandler( int signum, siginfo_t* info, void* ptr ) nothrow |
| { |
| static enum MAXFRAMES = 128; |
| void*[MAXFRAMES] callstack; |
| |
| auto numframes = backtrace( callstack.ptr, MAXFRAMES ); |
| backtrace_symbols_fd( callstack.ptr, numframes, 2 ); |
| } |
| |
| sigaction_t action = void; |
| sigaction_t oldseg = void; |
| sigaction_t oldbus = void; |
| |
| (cast(byte*) &action)[0 .. action.sizeof] = 0; |
| sigfillset( &action.sa_mask ); // block other signals |
| action.sa_flags = SA_SIGINFO | SA_RESETHAND; |
| action.sa_sigaction = &unittestSegvHandler; |
| sigaction( SIGSEGV, &action, &oldseg ); |
| sigaction( SIGBUS, &action, &oldbus ); |
| scope( exit ) |
| { |
| sigaction( SIGSEGV, &oldseg, null ); |
| sigaction( SIGBUS, &oldbus, null ); |
| } |
| } |
| |
| if ( Runtime.sm_moduleUnitTester is null ) |
| { |
| size_t failed = 0; |
| foreach ( m; ModuleInfo ) |
| { |
| if ( m ) |
| { |
| auto fp = m.unitTest; |
| |
| if ( fp ) |
| { |
| try |
| { |
| fp(); |
| } |
| catch ( Throwable e ) |
| { |
| _d_print_throwable(e); |
| failed++; |
| } |
| } |
| } |
| } |
| return failed == 0; |
| } |
| return Runtime.sm_moduleUnitTester(); |
| } |
| |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Default Implementations |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| |
| /** |
| * |
| */ |
| Throwable.TraceInfo defaultTraceHandler( void* ptr = null ) |
| { |
| // backtrace |
| version (GNU) |
| import gcc.backtrace; |
| version (CRuntime_Glibc) |
| import core.sys.linux.execinfo; |
| else version (Darwin) |
| import core.sys.darwin.execinfo; |
| else version (FreeBSD) |
| import core.sys.freebsd.execinfo; |
| else version (NetBSD) |
| import core.sys.netbsd.execinfo; |
| else version (DragonFlyBSD) |
| import core.sys.dragonflybsd.execinfo; |
| else version (Windows) |
| import core.sys.windows.stacktrace; |
| else version (Solaris) |
| import core.sys.solaris.execinfo; |
| else version (CRuntime_UClibc) |
| import core.sys.linux.execinfo; |
| |
| // avoid recursive GC calls in finalizer, trace handlers should be made @nogc instead |
| import core.memory : gc_inFinalizer; |
| if (gc_inFinalizer) |
| return null; |
| |
| //printf("runtime.defaultTraceHandler()\n"); |
| static if ( __traits( compiles, new LibBacktrace(0) ) ) |
| { |
| version (Posix) |
| { |
| static enum FIRSTFRAME = 4; |
| } |
| else version (Win64) |
| { |
| static enum FIRSTFRAME = 4; |
| } |
| else |
| { |
| static enum FIRSTFRAME = 0; |
| } |
| return new LibBacktrace(FIRSTFRAME); |
| } |
| else static if ( __traits( compiles, new UnwindBacktrace(0) ) ) |
| { |
| version (Posix) |
| { |
| static enum FIRSTFRAME = 5; |
| } |
| else version (Win64) |
| { |
| static enum FIRSTFRAME = 4; |
| } |
| else |
| { |
| static enum FIRSTFRAME = 0; |
| } |
| return new UnwindBacktrace(FIRSTFRAME); |
| } |
| else static if ( __traits( compiles, backtrace ) ) |
| { |
| import core.demangle; |
| import core.stdc.stdlib : free; |
| import core.stdc.string : strlen, memchr, memmove; |
| |
| class DefaultTraceInfo : Throwable.TraceInfo |
| { |
| this() |
| { |
| numframes = 0; //backtrace( callstack, MAXFRAMES ); |
| if (numframes < 2) // backtrace() failed, do it ourselves |
| { |
| static void** getBasePtr() |
| { |
| version (D_InlineAsm_X86) |
| asm { naked; mov EAX, EBP; ret; } |
| else |
| version (D_InlineAsm_X86_64) |
| asm { naked; mov RAX, RBP; ret; } |
| else |
| return null; |
| } |
| |
| auto stackTop = getBasePtr(); |
| auto stackBottom = cast(void**) thread_stackBottom(); |
| void* dummy; |
| |
| if ( stackTop && &dummy < stackTop && stackTop < stackBottom ) |
| { |
| auto stackPtr = stackTop; |
| |
| for ( numframes = 0; stackTop <= stackPtr && |
| stackPtr < stackBottom && |
| numframes < MAXFRAMES; ) |
| { |
| enum CALL_INSTRUCTION_SIZE = 1; // it may not be 1 but it is good enough to get |
| // in CALL instruction address range for backtrace |
| callstack[numframes++] = *(stackPtr + 1) - CALL_INSTRUCTION_SIZE; |
| stackPtr = cast(void**) *stackPtr; |
| } |
| } |
| } |
| } |
| |
| override int opApply( scope int delegate(ref const(char[])) dg ) const |
| { |
| return opApply( (ref size_t, ref const(char[]) buf) |
| { |
| return dg( buf ); |
| } ); |
| } |
| |
| override int opApply( scope int delegate(ref size_t, ref const(char[])) dg ) const |
| { |
| version (Posix) |
| { |
| // NOTE: The first 4 frames with the current implementation are |
| // inside core.runtime and the object code, so eliminate |
| // these for readability. The alternative would be to |
| // exclude the first N frames that are in a list of |
| // mangled function names. |
| enum FIRSTFRAME = 4; |
| } |
| else version (Windows) |
| { |
| // NOTE: On Windows, the number of frames to exclude is based on |
| // whether the exception is user or system-generated, so |
| // it may be necessary to exclude a list of function names |
| // instead. |
| enum FIRSTFRAME = 0; |
| } |
| |
| version (linux) enum enableDwarf = true; |
| else version (FreeBSD) enum enableDwarf = true; |
| else version (DragonFlyBSD) enum enableDwarf = true; |
| else version (Darwin) enum enableDwarf = true; |
| else enum enableDwarf = false; |
| |
| static if (enableDwarf) |
| { |
| import core.internal.traits : externDFunc; |
| |
| alias traceHandlerOpApplyImpl = externDFunc!( |
| "rt.backtrace.dwarf.traceHandlerOpApplyImpl", |
| int function(const void*[], scope int delegate(ref size_t, ref const(char[]))) |
| ); |
| |
| if (numframes >= FIRSTFRAME) |
| { |
| return traceHandlerOpApplyImpl( |
| callstack[FIRSTFRAME .. numframes], |
| dg |
| ); |
| } |
| else |
| { |
| return 0; |
| } |
| } |
| else |
| { |
| const framelist = backtrace_symbols( callstack.ptr, numframes ); |
| scope(exit) free(cast(void*) framelist); |
| |
| int ret = 0; |
| for ( int i = FIRSTFRAME; i < numframes; ++i ) |
| { |
| char[4096] fixbuf; |
| auto buf = framelist[i][0 .. strlen(framelist[i])]; |
| auto pos = cast(size_t)(i - FIRSTFRAME); |
| buf = fixline( buf, fixbuf ); |
| ret = dg( pos, buf ); |
| if ( ret ) |
| break; |
| } |
| return ret; |
| } |
| |
| } |
| |
| override string toString() const |
| { |
| string buf; |
| foreach ( i, line; this ) |
| buf ~= i ? "\n" ~ line : line; |
| return buf; |
| } |
| |
| private: |
| int numframes; |
| static enum MAXFRAMES = 128; |
| void*[MAXFRAMES] callstack = void; |
| |
| private: |
| const(char)[] fixline( const(char)[] buf, return ref char[4096] fixbuf ) const |
| { |
| size_t symBeg, symEnd; |
| version (Darwin) |
| { |
| // format is: |
| // 1 module 0x00000000 D6module4funcAFZv + 0 |
| for ( size_t i = 0, n = 0; i < buf.length; i++ ) |
| { |
| if ( ' ' == buf[i] ) |
| { |
| n++; |
| while ( i < buf.length && ' ' == buf[i] ) |
| i++; |
| if ( 3 > n ) |
| continue; |
| symBeg = i; |
| while ( i < buf.length && ' ' != buf[i] ) |
| i++; |
| symEnd = i; |
| break; |
| } |
| } |
| } |
| else version (CRuntime_Glibc) |
| { |
| // format is: module(_D6module4funcAFZv) [0x00000000] |
| // or: module(_D6module4funcAFZv+0x78) [0x00000000] |
| auto bptr = cast(char*) memchr( buf.ptr, '(', buf.length ); |
| auto eptr = cast(char*) memchr( buf.ptr, ')', buf.length ); |
| auto pptr = cast(char*) memchr( buf.ptr, '+', buf.length ); |
| |
| if (pptr && pptr < eptr) |
| eptr = pptr; |
| |
| if ( bptr++ && eptr ) |
| { |
| symBeg = bptr - buf.ptr; |
| symEnd = eptr - buf.ptr; |
| } |
| } |
| else version (FreeBSD) |
| { |
| // format is: 0x00000000 <_D6module4funcAFZv+0x78> at module |
| auto bptr = cast(char*) memchr( buf.ptr, '<', buf.length ); |
| auto eptr = cast(char*) memchr( buf.ptr, '+', buf.length ); |
| |
| if ( bptr++ && eptr ) |
| { |
| symBeg = bptr - buf.ptr; |
| symEnd = eptr - buf.ptr; |
| } |
| } |
| else version (NetBSD) |
| { |
| // format is: 0x00000000 <_D6module4funcAFZv+0x78> at module |
| auto bptr = cast(char*) memchr( buf.ptr, '<', buf.length ); |
| auto eptr = cast(char*) memchr( buf.ptr, '+', buf.length ); |
| |
| if ( bptr++ && eptr ) |
| { |
| symBeg = bptr - buf.ptr; |
| symEnd = eptr - buf.ptr; |
| } |
| } |
| else version (DragonFlyBSD) |
| { |
| // format is: 0x00000000 <_D6module4funcAFZv+0x78> at module |
| auto bptr = cast(char*) memchr( buf.ptr, '<', buf.length ); |
| auto eptr = cast(char*) memchr( buf.ptr, '+', buf.length ); |
| |
| if ( bptr++ && eptr ) |
| { |
| symBeg = bptr - buf.ptr; |
| symEnd = eptr - buf.ptr; |
| } |
| } |
| else version (Solaris) |
| { |
| // format is object'symbol+offset [pc] |
| auto bptr = cast(char*) memchr( buf.ptr, '\'', buf.length ); |
| auto eptr = cast(char*) memchr( buf.ptr, '+', buf.length ); |
| |
| if ( bptr++ && eptr ) |
| { |
| symBeg = bptr - buf.ptr; |
| symEnd = eptr - buf.ptr; |
| } |
| } |
| else |
| { |
| // fallthrough |
| } |
| |
| assert(symBeg < buf.length && symEnd < buf.length); |
| assert(symBeg <= symEnd); |
| |
| enum min = (size_t a, size_t b) => a <= b ? a : b; |
| if (symBeg == symEnd || symBeg >= fixbuf.length) |
| { |
| immutable len = min(buf.length, fixbuf.length); |
| fixbuf[0 .. len] = buf[0 .. len]; |
| return fixbuf[0 .. len]; |
| } |
| else |
| { |
| fixbuf[0 .. symBeg] = buf[0 .. symBeg]; |
| |
| auto sym = demangle(buf[symBeg .. symEnd], fixbuf[symBeg .. $]); |
| |
| if (sym.ptr !is fixbuf.ptr + symBeg) |
| { |
| // demangle reallocated the buffer, copy the symbol to fixbuf |
| immutable len = min(fixbuf.length - symBeg, sym.length); |
| memmove(fixbuf.ptr + symBeg, sym.ptr, len); |
| if (symBeg + len == fixbuf.length) |
| return fixbuf[]; |
| } |
| |
| immutable pos = symBeg + sym.length; |
| assert(pos < fixbuf.length); |
| immutable tail = buf.length - symEnd; |
| immutable len = min(fixbuf.length - pos, tail); |
| fixbuf[pos .. pos + len] = buf[symEnd .. symEnd + len]; |
| return fixbuf[0 .. pos + len]; |
| } |
| } |
| } |
| |
| return new DefaultTraceInfo; |
| } |
| else static if ( __traits( compiles, new StackTrace(0, null) ) ) |
| { |
| version (Win64) |
| { |
| static enum FIRSTFRAME = 4; |
| } |
| else version (Win32) |
| { |
| static enum FIRSTFRAME = 0; |
| } |
| import core.sys.windows.winnt : CONTEXT; |
| auto s = new StackTrace(FIRSTFRAME, cast(CONTEXT*)ptr); |
| return s; |
| } |
| else |
| { |
| return null; |
| } |
| } |
