Mercurial > hg > graal-jvmci-8
diff src/share/vm/utilities/globalDefinitions_sparcWorks.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 485d403e94e1 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/utilities/globalDefinitions_sparcWorks.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,215 @@ +/* + * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// This file holds compiler-dependent includes, +// globally used constants & types, class (forward) +// declarations and a few frequently used utility functions. + + +# include <ctype.h> +# include <dirent.h> +# include <string.h> +# include <strings.h> // for bsd'isms +# include <stdarg.h> +# include <stddef.h> // for offsetof +# include <stdio.h> +# include <stdlib.h> +# include <wchar.h> +# include <stdarg.h> +# include <ieeefp.h> +# include <math.h> +# include <time.h> +# include <fcntl.h> +# include <dlfcn.h> +# include <pthread.h> +# include <thread.h> +# include <limits.h> +# include <errno.h> +# include <sys/trap.h> +# include <sys/regset.h> +# include <sys/procset.h> +# include <ucontext.h> +# include <setjmp.h> +# ifdef SOLARIS_MUTATOR_LIBTHREAD +# include <sys/procfs.h> +# endif + +// 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures +// When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in +// system header files. On 32-bit architectures, there is no problem. +// On 64-bit architectures, defining NULL as a 32-bit constant can cause +// problems with varargs functions: C++ integral promotion rules say for +// varargs, we pass the argument 0 as an int. So, if NULL was passed to a +// varargs function it will remain 32-bits. Depending on the calling +// convention of the machine, if the argument is passed on the stack then +// only 32-bits of the "NULL" pointer may be initialized to zero. The +// other 32-bits will be garbage. If the varargs function is expecting a +// pointer when it extracts the argument, then we have a problem. +// +// Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. +#ifdef _LP64 +#undef NULL +#define NULL 0L +#else +#ifndef NULL +#define NULL 0 +#endif +#endif + +// NULL vs NULL_WORD: +// On Linux NULL is defined as a special type '__null'. Assigning __null to +// integer variable will cause gcc warning. Use NULL_WORD in places where a +// pointer is stored as integer value. +#define NULL_WORD NULL + +// Compiler-specific primitive types +typedef unsigned short uint16_t; +#ifndef _UINT32_T +#define _UINT32_T +typedef unsigned int uint32_t; +#endif +#if !defined(_SYS_INT_TYPES_H) +#ifndef _UINT64_T +#define _UINT64_T +typedef unsigned long long uint64_t; +#endif +// %%%% how to access definition of intptr_t portably in 5.5 onward? +typedef int intptr_t; +typedef unsigned int uintptr_t; +// If this gets an error, figure out a symbol XXX that implies the +// prior definition of intptr_t, and add "&& !defined(XXX)" above. +#endif + +// Additional Java basic types + +typedef unsigned char jubyte; +typedef unsigned short jushort; +typedef unsigned int juint; +typedef unsigned long long julong; + +//---------------------------------------------------------------------------------------------------- +// Special (possibly not-portable) casts +// Cast floats into same-size integers and vice-versa w/o changing bit-pattern + +inline jint jint_cast (jfloat x) { return *(jint* )&x; } +inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } + +inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } +inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } + +//---------------------------------------------------------------------------------------------------- +// Constant for jlong (specifying an long long constant is C++ compiler specific) + +// Build a 64bit integer constant +#define CONST64(x) (x ## LL) +#define UCONST64(x) (x ## ULL) + +const jlong min_jlong = CONST64(0x8000000000000000); +const jlong max_jlong = CONST64(0x7fffffffffffffff); + + +//---------------------------------------------------------------------------------------------------- +// ANSI C++ fixes +// NOTE:In the ANSI committee's continuing attempt to make each version +// of C++ incompatible with the previous version, you can no longer cast +// pointers to functions without specifying linkage unless you want to get +// warnings. +// +// This also means that pointers to functions can no longer be "hidden" +// in opaque types like void * because at the invokation point warnings +// will be generated. While this makes perfect sense from a type safety +// point of view it causes a lot of warnings on old code using C header +// files. Here are some typedefs to make the job of silencing warnings +// a bit easier. +// +// The final kick in the teeth is that you can only have extern "C" linkage +// specified at file scope. So these typedefs are here rather than in the +// .hpp for the class (os:Solaris usually) that needs them. + +extern "C" { + typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); + typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); + typedef int (*int_fnP_thread_t_i)(thread_t, int); + typedef int (*int_fnP_thread_t)(thread_t); + + typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); + typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); + + // typedef for missing API in libc + typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); + typedef int (*int_fnP_mutex_tP)(mutex_t *); + typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); + typedef int (*int_fnP_cond_tP)(cond_t *cv); +}; + + +//---------------------------------------------------------------------------------------------------- +// Debugging + +#define DEBUG_EXCEPTION ::abort(); + +extern "C" void breakpoint(); +#define BREAKPOINT ::breakpoint() + +// checking for nanness + +#ifdef SPARC +inline int g_isnan(float f) { return isnanf(f); } +#else +// isnanf() broken on Intel Solaris use isnand() +inline int g_isnan(float f) { return isnand(f); } +#endif + +inline int g_isnan(double f) { return isnand(f); } + +// Checking for finiteness + +inline int g_isfinite(jfloat f) { return finite(f); } +inline int g_isfinite(jdouble f) { return finite(f); } + + +// Wide characters + +inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } + + +// Misc +int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr); +#define vsnprintf local_vsnprintf + + +// Portability macros +#define PRAGMA_INTERFACE +#define PRAGMA_IMPLEMENTATION +#define PRAGMA_IMPLEMENTATION_(arg) +#define VALUE_OBJ_CLASS_SPEC : public _ValueObj + +// Formatting. +#ifdef _LP64 +#define FORMAT64_MODIFIER "l" +#else // !_LP64 +#define FORMAT64_MODIFIER "ll" +#endif // _LP64 + +#define offset_of(klass,field) offsetof(klass,field)