* Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
* Copyright (c) 1996 by Silicon Graphics. All rights reserved.
- * Copyright (c) 2000 by Hewlett-Packard Company. All rights reserved.
+ * Copyright (c) 2000-2004 Hewlett-Packard Development Company, L.P.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
# define ARM32
# define mach_type_known
# endif
+# if defined(LINUX) && defined(__cris__)
+# ifndef CRIS
+# define CRIS
+# endif
+# define mach_type_known
+# endif
# if defined(LINUX) && (defined(powerpc) || defined(__powerpc__) || defined(powerpc64) || defined(__powerpc64__))
# define POWERPC
# define mach_type_known
# define SH
# define mach_type_known
# endif
+# if defined(LINUX) && defined(__m32r__)
+# define M32R
+# define mach_type_known
+# endif
# if defined(__alpha) || defined(__alpha__)
# define ALPHA
# if !defined(LINUX) && !defined(NETBSD) && !defined(OPENBSD) && !defined(FREEBSD)
# define MACOS
# define mach_type_known
# endif
-# if defined(macosx) || \
- defined(__APPLE__) && defined(__MACH__) && defined(__ppc__)
+# if defined(macosx) \
+ || defined(__APPLE__) && defined(__MACH__) && defined(__ppc__) \
+ || defined(__APPLE__) && defined(__MACH__) && defined(__ppc64__)
# define DARWIN
# define POWERPC
# define mach_type_known
# define I386
# define mach_type_known
# endif
+# if defined(__NetBSD__) && defined(__x86_64__)
+# define X86_64
+# define mach_type_known
+# endif
# if defined(bsdi) && (defined(i386) || defined(__i386__))
# define I386
# define BSDI
# define MSWIN32 /* or Win32s */
# define mach_type_known
# endif
+# if defined(_MSC_VER) && defined(_M_IA64)
+# define IA64
+# define MSWIN32 /* Really win64, but we don't treat 64-bit */
+ /* variants as a differnt platform. */
+# endif
# endif
# if defined(__DJGPP__)
# define I386
/* POWERPC ==> IBM/Apple PowerPC */
/* (MACOS(<=9),DARWIN(incl.MACOSX),*/
/* LINUX, NETBSD, NOSYS variants) */
+ /* CRIS ==> Axis Etrax */
+ /* M32R ==> Renesas M32R */
/*
* USE_GENERIC_PUSH_REGS the preferred approach for marking from registers.
*/
# if defined(__GNUC__) && ((__GNUC__ >= 3) || \
- (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
+ (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)) \
+ && !defined(__INTEL_COMPILER)
# define HAVE_BUILTIN_UNWIND_INIT
# endif
# ifdef OPENBSD
# define OS_TYPE "OPENBSD"
# define HEURISTIC2
- extern char etext[];
-# define DATASTART ((ptr_t)(etext))
+# ifdef __ELF__
+# define DATASTART GC_data_start
+# define DYNAMIC_LOADING
+# else
+ extern char etext[];
+# define DATASTART ((ptr_t)(etext))
+# endif
+# define USE_GENERIC_PUSH_REGS
# endif
# ifdef NETBSD
# define OS_TYPE "NETBSD"
extern char etext[];
# define DATASTART ((ptr_t)(etext))
# endif
+# define USE_GENERIC_PUSH_REGS
# endif
# ifdef LINUX
# define OS_TYPE "LINUX"
# define STACKBOTTOM ((ptr_t)0xf0000000)
# define USE_GENERIC_PUSH_REGS
- /* We never got around to the assembly version. */
+# define USE_MMAP
+ /* We never got around to the assembly version. */
/* # define MPROTECT_VDB - Reported to not work 9/17/01 */
# ifdef __ELF__
# define DYNAMIC_LOADING
# if (defined (powerpc64) || defined(__powerpc64__))
# define ALIGNMENT 8
# define CPP_WORDSZ 64
+# define HBLKSIZE 4096
# else
# define ALIGNMENT 4
# endif
# define DATAEND (_end)
# endif
# ifdef DARWIN
-# define ALIGNMENT 4
+# if (defined (__ppc64__))
+# define ALIGNMENT 8
+# define CPP_WORDSZ 64
+# else
+# define ALIGNMENT 4
+# endif
# define OS_TYPE "DARWIN"
# define DYNAMIC_LOADING
/* XXX: see get_end(3), get_etext() and get_end() should not be used.
extern ptr_t GC_SysVGetDataStart();
# ifdef __arch64__
# define DATASTART GC_SysVGetDataStart(0x100000, _etext)
- /* libc_stack_end is not set reliably for sparc64 */
-# define STACKBOTTOM ((ptr_t) 0x80000000000ULL)
# else
# define DATASTART GC_SysVGetDataStart(0x10000, _etext)
-# define LINUX_STACKBOTTOM
# endif
+# define LINUX_STACKBOTTOM
# endif
# ifdef OPENBSD
# define OS_TYPE "OPENBSD"
# ifdef I386
# define MACH_TYPE "I386"
-# define ALIGNMENT 4 /* Appears to hold for all "32 bit" compilers */
+# if defined(__LP64__) || defined(_WIN64)
+# define CPP_WORDSZ 64
+# define ALIGNMENT 8
+# else
+# define CPP_WORDSZ 32
+# define ALIGNMENT 4
+ /* Appears to hold for all "32 bit" compilers */
/* except Borland. The -a4 option fixes */
/* Borland. */
/* Ivan Demakov: For Watcom the option is -zp4. */
+# endif
# ifndef SMALL_CONFIG
# define ALIGN_DOUBLE /* Not strictly necessary, but may give speed */
/* improvement on Pentiums. */
/* possibly because Linux threads is itself a malloc client */
/* and can't deal with the signals. */
# endif
-# define HEAP_START 0x1000
+# define HEAP_START (ptr_t)0x1000
/* This encourages mmap to give us low addresses, */
/* thus allowing the heap to grow to ~3GB */
# ifdef __ELF__
# define DATASTART ((ptr_t)((((word) (etext)) + 0xfff) & ~0xfff))
# endif
# ifdef USE_I686_PREFETCH
+ /* FIXME: Thus should use __builtin_prefetch, but we'll leave that */
+ /* for the next rtelease. */
# define PREFETCH(x) \
__asm__ __volatile__ (" prefetchnta %0": : "m"(*(char *)(x)))
/* Empirically prefetcht0 is much more effective at reducing */
# endif
# ifdef LINUX
# define OS_TYPE "LINUX"
-# define STACKBOTTOM ((ptr_t) 0x120000000)
+# define LINUX_STACKBOTTOM
# ifdef __ELF__
# define SEARCH_FOR_DATA_START
# define DYNAMIC_LOADING
/* first putenv call. */
extern char ** environ;
# define STACKBOTTOM ((ptr_t)environ)
+# define HPUX_STACKBOTTOM
# define DYNAMIC_LOADING
# include <unistd.h>
# define GETPAGESIZE() sysconf(_SC_PAGE_SIZE)
/* address minus one page. */
# define BACKING_STORE_DISPLACEMENT 0x1000000
# define BACKING_STORE_ALIGNMENT 0x1000
-# define BACKING_STORE_BASE \
- (ptr_t)(((word)GC_stackbottom - BACKING_STORE_DISPLACEMENT - 1) \
- & ~(BACKING_STORE_ALIGNMENT - 1))
+ extern ptr_t GC_register_stackbottom;
+# define BACKING_STORE_BASE GC_register_stackbottom
+ /* Known to be wrong for recent HP/UX versions!!! */
# endif
# ifdef LINUX
# define CPP_WORDSZ 64
/* constants: */
# define BACKING_STORE_ALIGNMENT 0x100000
# define BACKING_STORE_DISPLACEMENT 0x80000000
- extern char * GC_register_stackbottom;
-# define BACKING_STORE_BASE ((ptr_t)GC_register_stackbottom)
+ extern ptr_t GC_register_stackbottom;
+# define BACKING_STORE_BASE GC_register_stackbottom
# define SEARCH_FOR_DATA_START
# ifdef __GNUC__
# define DYNAMIC_LOADING
extern int _end[];
# define DATAEND (_end)
# ifdef __GNUC__
-# define PREFETCH(x) \
- __asm__ (" lfetch [%0]": : "r"((void *)(x)))
-# define PREFETCH_FOR_WRITE(x) \
- __asm__ (" lfetch.excl [%0]": : "r"((void *)(x)))
-# define CLEAR_DOUBLE(x) \
- __asm__ (" stf.spill [%0]=f0": : "r"((void *)(x)))
+# ifndef __INTEL_COMPILER
+# define PREFETCH(x) \
+ __asm__ (" lfetch [%0]": : "r"(x))
+# define PREFETCH_FOR_WRITE(x) \
+ __asm__ (" lfetch.excl [%0]": : "r"(x))
+# define CLEAR_DOUBLE(x) \
+ __asm__ (" stf.spill [%0]=f0": : "r"((void *)(x)))
+# else
+# include <ia64intrin.h>
+# define PREFETCH(x) \
+ __lfetch(__lfhint_none, (x))
+# define PREFETCH_FOR_WRITE(x) \
+ __lfetch(__lfhint_nta, (x))
+# define CLEAR_DOUBLE(x) \
+ __stf_spill((void *)(x), 0)
+# endif // __INTEL_COMPILER
# endif
# endif
+# ifdef MSWIN32
+ /* FIXME: This is a very partial guess. There is no port, yet. */
+# define OS_TYPE "MSWIN32"
+ /* STACKBOTTOM and DATASTART are handled specially in */
+ /* os_dep.c. */
+# define DATAEND /* not needed */
+# if defined(_WIN64)
+# define CPP_WORDSZ 64
+# else
+# define CPP_WORDSZ 32 /* Is this possible? */
+# endif
+# define ALIGNMENT 8
+# endif
# endif
# ifdef M88K
# endif
#endif
+# ifdef CRIS
+# define MACH_TYPE "CRIS"
+# define CPP_WORDSZ 32
+# define ALIGNMENT 1
+# define OS_TYPE "LINUX"
+# define DYNAMIC_LOADING
+# define LINUX_STACKBOTTOM
+# define USE_GENERIC_PUSH_REGS
+# define SEARCH_FOR_DATA_START
+ extern int _end[];
+# define DATAEND (_end)
+# endif
+
# ifdef SH
# define MACH_TYPE "SH"
# define ALIGNMENT 4
# define DATAEND /* not needed */
# endif
+# ifdef M32R
+# define CPP_WORDSZ 32
+# define MACH_TYPE "M32R"
+# define ALIGNMENT 4
+# ifdef LINUX
+# define OS_TYPE "LINUX"
+# define LINUX_STACKBOTTOM
+# undef STACK_GRAN
+# define STACK_GRAN 0x10000000
+# define USE_GENERIC_PUSH_REGS
+# define DYNAMIC_LOADING
+# define SEARCH_FOR_DATA_START
+ extern int _end[];
+# define DATAEND (_end)
+# endif
+# endif
+
# ifdef X86_64
# define MACH_TYPE "X86_64"
# define ALIGNMENT 8
extern int etext[];
# define DATASTART ((ptr_t)((((word) (etext)) + 0xfff) & ~0xfff))
# endif
-# define PREFETCH(x) \
- __asm__ __volatile__ (" prefetch %0": : "m"(*(char *)(x)))
-# define PREFETCH_FOR_WRITE(x) \
- __asm__ __volatile__ (" prefetchw %0": : "m"(*(char *)(x)))
+# if defined(__GNUC__) && __GNUC >= 3
+# define PREFETCH(x) __builtin_prefetch((x), 0, 0)
+# define PREFETCH_FOR_WRITE(x) __builtin_prefetch((x), 1)
+# endif
+# endif
+# ifdef NETBSD
+# define OS_TYPE "NETBSD"
+# ifdef __ELF__
+# define DYNAMIC_LOADING
+# endif
+# define HEURISTIC2
+ extern char etext[];
+# define SEARCH_FOR_DATA_START
# endif
# endif
+#if defined(LINUX) && defined(USE_MMAP)
+ /* The kernel may do a somewhat better job merging mappings etc. */
+ /* with anonymous mappings. */
+# define USE_MMAP_ANON
+#endif
+
#if defined(LINUX) && defined(REDIRECT_MALLOC)
/* Rld appears to allocate some memory with its own allocator, and */
/* some through malloc, which might be redirected. To make this */
# define SUNOS5SIGS
# endif
-# if defined(SVR4) || defined(LINUX) || defined(IRIX) || defined(HPUX) \
+# if defined(FREEBSD) && (__FreeBSD__ >= 4)
+# define SUNOS5SIGS
+# endif
+
+# if defined(SVR4) || defined(LINUX) || defined(IRIX5) || defined(HPUX) \
|| defined(OPENBSD) || defined(NETBSD) || defined(FREEBSD) \
- || defined(DGUX) || defined(BSD) \
+ || defined(DGUX) || defined(BSD) || defined(SUNOS4) \
|| defined(_AIX) || defined(DARWIN) || defined(OSF1)
# define UNIX_LIKE /* Basic Unix-like system calls work. */
# endif
# endif
# if defined(HP_PA) || defined(M88K) || defined(POWERPC) && !defined(DARWIN) \
- || defined(LINT) || defined(MSWINCE) || defined(ARM32) \
+ || defined(LINT) || defined(MSWINCE) || defined(ARM32) || defined(CRIS) \
|| (defined(I386) && defined(__LCC__))
/* Use setjmp based hack to mark from callee-save registers. */
/* The define should move to the individual platform */
# define USE_GENERIC_PUSH_REGS
# endif
+# if defined(MSWINCE)
+# define NO_GETENV
+# endif
+
# if defined(SPARC)
# define ASM_CLEAR_CODE /* Stack clearing is crucial, and we */
/* include assembly code to do it well. */
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