Update Files

Kha/Backends/Kinc-HL/hl/src/std/error.c

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+/*
+ * Copyright (C)2005-2016 Haxe Foundation
+ *
+ * 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.
+ */
+#include <hl.h>
+#include <stdarg.h>
+#include <string.h>
+
+#ifdef HL_CONSOLE
+#include <posix/posix.h>
+#endif
+
+HL_PRIM void *hl_fatal_error( const char *msg, const char *file, int line ) {
+	hl_blocking(true);
+#	ifdef HL_WIN_DESKTOP
+    HWND consoleWnd = GetConsoleWindow();
+    DWORD pid;
+    GetWindowThreadProcessId(consoleWnd, &pid);
+    if( consoleWnd == NULL || GetActiveWindow() != NULL || GetCurrentProcessId() == pid ) {
+		char buf[256];
+		sprintf(buf,"%s\n\n%s(%d)",msg,file,line);
+		MessageBoxA(NULL,buf,"Fatal Error", MB_OK | MB_ICONERROR);
+	}
+#	endif
+	printf("%s(%d) : FATAL ERROR : %s\n",file,line,msg);
+	hl_blocking(false);
+	hl_debug_break();
+	exit(1);
+	return NULL;
+}
+
+typedef uchar *(*resolve_symbol_type)( void *addr, uchar *out, int *outSize );
+typedef int (*capture_stack_type)( void **stack, int size );
+
+static resolve_symbol_type resolve_symbol_func = NULL;
+static capture_stack_type capture_stack_func = NULL;
+
+int hl_internal_capture_stack( void **stack, int size ) {
+	return capture_stack_func(stack,size);
+}
+
+HL_PRIM uchar *hl_resolve_symbol( void *addr, uchar *out, int *outSize ) {
+	return resolve_symbol_func(addr, out, outSize);
+}
+
+static void (*throw_jump)( jmp_buf, int ) = NULL;
+
+HL_PRIM void hl_setup_longjump( void *j ) {
+	throw_jump = j;
+}
+
+HL_PRIM void hl_setup_exception( void *resolve_symbol, void *capture_stack ) {
+	resolve_symbol_func = resolve_symbol;
+	capture_stack_func = capture_stack;
+}
+
+HL_PRIM void hl_set_error_handler( vclosure *d ) {
+	hl_thread_info *t = hl_get_thread();
+	t->trap_uncaught = t->trap_current;
+	t->exc_handler = d;
+}
+
+static bool break_on_trap( hl_thread_info *t, hl_trap_ctx *trap, vdynamic *v ) {
+	while( true ) {
+		if( trap == NULL || trap == t->trap_uncaught || t->trap_current == NULL || trap->prev == NULL ) return true;
+		if( !trap->tcheck || !v ) return false;
+		hl_type *ot = ((hl_type**)trap->tcheck)[1]; // it's an obj with first field is a hl_type
+		if( !ot || hl_safe_cast(v->t,ot) ) return false;
+		trap = trap->prev;
+	}
+	return false;
+}
+
+HL_PRIM void hl_throw( vdynamic *v ) {
+	hl_thread_info *t = hl_get_thread();
+	hl_trap_ctx *trap = t->trap_current;
+	bool call_handler = false;
+	if( !(t->flags & HL_EXC_RETHROW) )
+		t->exc_stack_count = capture_stack_func(t->exc_stack_trace, HL_EXC_MAX_STACK);
+	t->exc_value = v;
+	t->trap_current = trap->prev;
+	call_handler = trap == t->trap_uncaught || t->trap_current == NULL;
+	if( (t->flags&HL_EXC_CATCH_ALL) || break_on_trap(t,trap,v) ) {
+		if( trap == t->trap_uncaught ) t->trap_uncaught = NULL;
+		t->flags |= HL_EXC_IS_THROW;
+		hl_debug_break();
+		t->flags &= ~HL_EXC_IS_THROW;
+	}
+	t->flags &= ~HL_EXC_RETHROW;
+	if( t->exc_handler && call_handler ) hl_dyn_call_safe(t->exc_handler,&v,1,&call_handler);
+	if( throw_jump == NULL ) throw_jump = longjmp;
+	throw_jump(trap->buf,1);
+	HL_UNREACHABLE;
+}
+
+HL_PRIM void hl_null_access() {
+	hl_error("Null access");
+	HL_UNREACHABLE;
+}
+
+HL_PRIM void hl_throw_buffer( hl_buffer *b ) {
+	vdynamic *d = hl_alloc_dynamic(&hlt_bytes);	
+	d->v.ptr = hl_buffer_content(b,NULL);
+	hl_throw(d);
+}
+
+HL_PRIM void hl_dump_stack() {
+	void *stack[0x1000];
+	int count = capture_stack_func(stack, 0x1000);
+	int i;
+	for(i=0;i<count;i++) {
+		void *addr = stack[i];
+		uchar sym[512];
+		int size = 512;
+		uchar *str = resolve_symbol_func(addr, sym, &size);
+		if( str == NULL ) {
+			int iaddr = (int)(int_val)addr;
+			usprintf(sym,512,USTR("@0x%X"),iaddr);
+			str = sym;
+		}
+		uprintf(USTR("%s\n"),str);
+	}
+	fflush(stdout);
+}
+
+HL_PRIM varray *hl_exception_stack() {
+	hl_thread_info *t = hl_get_thread();
+	varray *a = hl_alloc_array(&hlt_bytes, t->exc_stack_count);
+	int i, pos = 0;
+	for(i=0;i<t->exc_stack_count;i++) {
+		void *addr = t->exc_stack_trace[i];
+		uchar sym[512];
+		int size = 512;
+		uchar *str = resolve_symbol_func(addr, sym, &size);
+		if( str == NULL ) continue;
+		hl_aptr(a,vbyte*)[pos++] = hl_copy_bytes((vbyte*)str,sizeof(uchar)*(size+1));
+	}
+	a->size = pos;
+	return a;
+}
+
+HL_PRIM int hl_exception_stack_raw( varray *arr ) {
+	hl_thread_info *t = hl_get_thread();
+	if( arr ) memcpy(hl_aptr(arr,void*), t->exc_stack_trace, t->exc_stack_count*sizeof(void*));
+	return t->exc_stack_count;
+}
+
+HL_PRIM int hl_call_stack_raw( varray *arr ) {
+	if( !arr )
+		return capture_stack_func(NULL,0);
+	return capture_stack_func(hl_aptr(arr,void*), arr->size);
+}
+
+HL_PRIM void hl_rethrow( vdynamic *v ) {
+	hl_get_thread()->flags |= HL_EXC_RETHROW;
+	hl_throw(v);
+}
+
+HL_PRIM vdynamic *hl_alloc_strbytes( const uchar *fmt, ... ) {
+	uchar _buf[256];
+	vdynamic *d;
+	int len;
+	uchar *buf = _buf;
+	int bsize = sizeof(_buf) / sizeof(uchar);
+	va_list args;
+	while( true ) {
+		va_start(args, fmt);
+		len = uvszprintf(buf,bsize,fmt,args);
+		va_end(args);
+		if( (len + 2) << 1 < bsize ) break;
+		if( buf != _buf ) free(buf);
+		bsize <<= 1;
+		buf = (uchar*)malloc(bsize * sizeof(uchar));
+	}
+	d = hl_alloc_dynamic(&hlt_bytes);
+	d->v.ptr = hl_copy_bytes((vbyte*)buf,(len + 1) << 1);
+	if( buf != _buf ) free(buf);
+	return d;
+}
+
+HL_PRIM void hl_fatal_fmt( const char *file, int line, const char *fmt, ...) {
+	char buf[256];
+	va_list args;
+	va_start(args, fmt);
+	vsprintf(buf,fmt, args);
+	va_end(args);
+	hl_fatal_error(buf,file,line);
+}
+
+#ifdef HL_VCC
+#	pragma optimize( "", off )
+#endif
+HL_PRIM HL_NO_OPT void hl_breakpoint() {
+	hl_debug_break();
+}
+#ifdef HL_VCC
+#	pragma optimize( "", on )
+#endif
+
+#ifdef HL_LINUX__
+#include <signal.h>
+static int debugger_present = -1;
+static void _sigtrap_handler(int signum) {
+	debugger_present = 0;
+	signal(SIGTRAP,SIG_DFL);
+}
+#endif
+
+#ifdef HL_MAC
+	extern bool kinc_debugger_attached(void);
+#endif
+
+HL_PRIM bool hl_detect_debugger() {
+#	if defined(HL_WIN)
+	return (bool)IsDebuggerPresent();
+#	elif defined(HL_LINUX__)
+	if( debugger_present == -1 ) {
+		debugger_present = 1;
+		signal(SIGTRAP,_sigtrap_handler);
+		raise(SIGTRAP);
+	}
+	return (bool)debugger_present;
+#	elif defined(HL_MAC)
+	return kinc_debugger_attached();
+#	else
+	return false;
+#	endif
+}
+
+#ifdef HL_VCC
+#	pragma optimize( "", off )
+#endif
+HL_PRIM HL_NO_OPT void hl_assert() {
+	hl_debug_break();
+	hl_error("assert");
+}
+#ifdef HL_VCC
+#	pragma optimize( "", on )
+#endif
+
+#define _SYMBOL _ABSTRACT(hl_symbol)
+
+DEFINE_PRIM(_ARR,exception_stack,_NO_ARG);
+DEFINE_PRIM(_I32,exception_stack_raw,_ARR);
+DEFINE_PRIM(_I32,call_stack_raw,_ARR);
+DEFINE_PRIM(_VOID,set_error_handler,_FUN(_VOID,_DYN));
+DEFINE_PRIM(_VOID,breakpoint,_NO_ARG);
+DEFINE_PRIM(_BYTES,resolve_symbol, _SYMBOL _BYTES _REF(_I32));