| 1 |
/* |
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* sysdeps.h - System dependent definitions for Linux |
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* |
| 4 |
* SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifndef SYSDEPS_H |
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#define SYSDEPS_H |
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|
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#ifndef __STDC__ |
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#error "Your compiler is not ANSI. Get a real one." |
| 26 |
#endif |
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|
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#include "config.h" |
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#include "user_strings_unix.h" |
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|
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#ifndef STDC_HEADERS |
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#error "You don't have ANSI C header files." |
| 33 |
#endif |
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|
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#ifdef HAVE_UNISTD_H |
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# include <sys/types.h> |
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# include <unistd.h> |
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#endif |
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|
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#include <netinet/in.h> |
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#include <assert.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <stddef.h> |
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#include <string.h> |
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#include <signal.h> |
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|
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#ifdef HAVE_PTHREADS |
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# include <pthread.h> |
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#endif |
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|
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#ifdef HAVE_FCNTL_H |
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# include <fcntl.h> |
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#endif |
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|
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#ifdef TIME_WITH_SYS_TIME |
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# include <sys/time.h> |
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# include <time.h> |
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#else |
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# ifdef HAVE_SYS_TIME_H |
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# include <sys/time.h> |
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# else |
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# include <time.h> |
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# endif |
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#endif |
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|
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// Fix offsetof() on FreeBSD and GCC >= 3.4 |
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#if defined(__FreeBSD__) && defined(__cplusplus) |
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#undef offsetof |
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/* The cast to "char &" below avoids problems with user-defined |
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"operator &", which can appear in a POD type. */ |
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#define offsetof(TYPE, MEMBER) \ |
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(__offsetof__ (reinterpret_cast <size_t> \ |
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(&reinterpret_cast <char &> \ |
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(static_cast<TYPE *> (0)->MEMBER)))) |
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#endif |
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|
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// Define for external components |
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#define SHEEPSHAVER 1 |
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|
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// Always use Real Addressing mode on native architectures |
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// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set |
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#if !defined(EMULATED_PPC) |
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#define REAL_ADDRESSING 1 |
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#include "ppc_asm.tmpl" |
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#elif defined(NATMEM_OFFSET) |
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#define DIRECT_ADDRESSING 1 |
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#else |
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#define REAL_ADDRESSING 1 |
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#endif |
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|
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// Always use the complete non-stubs Ethernet driver |
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#define USE_ETHER_FULL_DRIVER 1 |
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|
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#define POWERPC_ROM 1 |
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|
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#if EMULATED_PPC |
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// Mac ROM is write protected when banked memory is used |
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#if REAL_ADDRESSING || DIRECT_ADDRESSING |
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# define ROM_IS_WRITE_PROTECTED 0 |
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# define USE_SCRATCHMEM_SUBTERFUGE 1 |
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#else |
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# define ROM_IS_WRITE_PROTECTED 1 |
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#endif |
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// Configure PowerPC emulator |
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#define PPC_REENTRANT_JIT 1 |
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#define PPC_CHECK_INTERRUPTS 1 |
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#define PPC_DECODE_CACHE 1 |
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#define PPC_FLIGHT_RECORDER 1 |
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#define PPC_PROFILE_COMPILE_TIME 0 |
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#define PPC_PROFILE_GENERIC_CALLS 0 |
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#define KPX_MAX_CPUS 1 |
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#if ENABLE_DYNGEN |
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#define PPC_ENABLE_JIT 1 |
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#endif |
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#if defined(__i386__) |
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#define DYNGEN_ASM_OPTS 1 |
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#endif |
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#else |
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// Mac ROM is write protected |
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#define ROM_IS_WRITE_PROTECTED 1 |
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#define USE_SCRATCHMEM_SUBTERFUGE 0 |
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#endif |
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|
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// Data types |
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typedef unsigned char uint8; |
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typedef signed char int8; |
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#if SIZEOF_SHORT == 2 |
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typedef unsigned short uint16; |
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typedef short int16; |
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#elif SIZEOF_INT == 2 |
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typedef unsigned int uint16; |
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typedef int int16; |
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#else |
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#error "No 2 byte type, you lose." |
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#endif |
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#if SIZEOF_INT == 4 |
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typedef unsigned int uint32; |
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typedef int int32; |
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#elif SIZEOF_LONG == 4 |
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typedef unsigned long uint32; |
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typedef long int32; |
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#else |
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#error "No 4 byte type, you lose." |
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#endif |
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#if SIZEOF_LONG == 8 |
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typedef unsigned long uint64; |
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typedef long int64; |
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#define VAL64(a) (a ## l) |
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#define UVAL64(a) (a ## ul) |
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#elif SIZEOF_LONG_LONG == 8 |
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typedef unsigned long long uint64; |
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typedef long long int64; |
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#define VAL64(a) (a ## LL) |
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#define UVAL64(a) (a ## uLL) |
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#else |
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#error "No 8 byte type, you lose." |
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#endif |
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#if SIZEOF_VOID_P == 4 |
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typedef uint32 uintptr; |
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typedef int32 intptr; |
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#elif SIZEOF_VOID_P == 8 |
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typedef uint64 uintptr; |
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typedef int64 intptr; |
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#else |
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#error "Unsupported size of pointer" |
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#endif |
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|
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/** |
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* Helper macros to annotate likely branch directions |
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**/ |
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|
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#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) |
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#define likely(x) __builtin_expect((x),1) |
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#define unlikely(x) __builtin_expect((x),0) |
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#endif |
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#ifndef likely |
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#define likely(x) (x) |
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#endif |
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#ifndef unlikely |
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#define unlikely(x) (x) |
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#endif |
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|
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/** |
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* Helper functions to byteswap data |
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**/ |
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|
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#if defined(__GNUC__) |
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#if defined(__x86_64__) || defined(__i386__) |
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// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h> |
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#define opt_bswap_32 do_opt_bswap_32 |
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static inline uint32 do_opt_bswap_32(uint32 x) |
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{ |
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uint32 v; |
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__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x)); |
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return v; |
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} |
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#endif |
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#endif |
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|
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#ifdef HAVE_BYTESWAP_H |
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#include <byteswap.h> |
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#endif |
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|
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#ifdef opt_bswap_16 |
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#undef bswap_16 |
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#define bswap_16 opt_bswap_16 |
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#endif |
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#ifndef bswap_16 |
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#define bswap_16 generic_bswap_16 |
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#endif |
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|
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static inline uint16 generic_bswap_16(uint16 x) |
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{ |
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return ((x & 0xff) << 8) | ((x >> 8) & 0xff); |
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} |
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|
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#ifdef opt_bswap_32 |
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#undef bswap_32 |
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#define bswap_32 opt_bswap_32 |
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#endif |
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#ifndef bswap_32 |
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#define bswap_32 generic_bswap_32 |
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#endif |
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|
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static inline uint32 generic_bswap_32(uint32 x) |
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{ |
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return (((x & 0xff000000) >> 24) | |
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((x & 0x00ff0000) >> 8) | |
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((x & 0x0000ff00) << 8) | |
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((x & 0x000000ff) << 24) ); |
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} |
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|
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#if defined(__i386__) |
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#define opt_bswap_64 do_opt_bswap_64 |
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static inline uint64 do_opt_bswap_64(uint64 x) |
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{ |
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return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32)); |
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} |
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#endif |
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|
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#ifdef opt_bswap_64 |
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#undef bswap_64 |
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#define bswap_64 opt_bswap_64 |
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#endif |
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#ifndef bswap_64 |
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#define bswap_64 generic_bswap_64 |
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#endif |
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|
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static inline uint64 generic_bswap_64(uint64 x) |
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{ |
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return (((x & UVAL64(0xff00000000000000)) >> 56) | |
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((x & UVAL64(0x00ff000000000000)) >> 40) | |
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((x & UVAL64(0x0000ff0000000000)) >> 24) | |
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((x & UVAL64(0x000000ff00000000)) >> 8) | |
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((x & UVAL64(0x00000000ff000000)) << 8) | |
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((x & UVAL64(0x0000000000ff0000)) << 24) | |
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((x & UVAL64(0x000000000000ff00)) << 40) | |
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((x & UVAL64(0x00000000000000ff)) << 56) ); |
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} |
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|
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#ifdef WORDS_BIGENDIAN |
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static inline uint16 tswap16(uint16 x) { return x; } |
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static inline uint32 tswap32(uint32 x) { return x; } |
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static inline uint64 tswap64(uint64 x) { return x; } |
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#else |
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static inline uint16 tswap16(uint16 x) { return bswap_16(x); } |
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static inline uint32 tswap32(uint32 x) { return bswap_32(x); } |
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static inline uint64 tswap64(uint64 x) { return bswap_64(x); } |
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#endif |
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|
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// spin locks |
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#ifdef __GNUC__ |
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|
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#if defined(__powerpc__) || defined(__ppc__) |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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int ret; |
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__asm__ __volatile__("0: lwarx %0,0,%1\n" |
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" xor. %0,%3,%0\n" |
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" bne 1f\n" |
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" stwcx. %2,0,%1\n" |
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" bne- 0b\n" |
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"1: " |
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: "=&r" (ret) |
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: "r" (p), "r" (1), "r" (0) |
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: "cr0", "memory"); |
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return ret; |
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} |
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#endif |
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|
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#if defined(__i386__) || defined(__x86_64__) |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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long int ret; |
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/* Note: the "xchg" instruction does not need a "lock" prefix */ |
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__asm__ __volatile__("xchgl %k0, %1" |
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: "=r" (ret), "=m" (*p) |
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: "0" (1), "m" (*p) |
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: "memory"); |
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return ret; |
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} |
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#endif |
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|
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#ifdef __s390__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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int ret; |
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|
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__asm__ __volatile__("0: cs %0,%1,0(%2)\n" |
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" jl 0b" |
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: "=&d" (ret) |
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: "r" (1), "a" (p), "0" (*p) |
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: "cc", "memory" ); |
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return ret; |
| 319 |
} |
| 320 |
#endif |
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|
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#ifdef __alpha__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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int ret; |
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unsigned long one; |
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|
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__asm__ __volatile__("0: mov 1,%2\n" |
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" ldl_l %0,%1\n" |
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" stl_c %2,%1\n" |
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" beq %2,1f\n" |
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".subsection 2\n" |
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"1: br 0b\n" |
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".previous" |
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: "=r" (ret), "=m" (*p), "=r" (one) |
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: "m" (*p)); |
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return ret; |
| 339 |
} |
| 340 |
#endif |
| 341 |
|
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#ifdef __sparc__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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int ret; |
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|
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__asm__ __volatile__("ldstub [%1], %0" |
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: "=r" (ret) |
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: "r" (p) |
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: "memory"); |
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|
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return (ret ? 1 : 0); |
| 354 |
} |
| 355 |
#endif |
| 356 |
|
| 357 |
#ifdef __arm__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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register unsigned int ret; |
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__asm__ __volatile__("swp %0, %1, [%2]" |
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: "=r"(ret) |
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: "0"(1), "r"(p)); |
| 365 |
|
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return ret; |
| 367 |
} |
| 368 |
#endif |
| 369 |
|
| 370 |
#endif /* __GNUC__ */ |
| 371 |
|
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typedef volatile int spinlock_t; |
| 373 |
|
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static const spinlock_t SPIN_LOCK_UNLOCKED = 0; |
| 375 |
|
| 376 |
#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS) |
| 377 |
// There is nothing to lock if we are not in an multithreaded environment |
| 378 |
#define HAVE_SPINLOCKS 1 |
| 379 |
static inline void spin_lock(spinlock_t *lock) |
| 380 |
{ |
| 381 |
while (testandset(lock)); |
| 382 |
} |
| 383 |
|
| 384 |
static inline void spin_unlock(spinlock_t *lock) |
| 385 |
{ |
| 386 |
*lock = 0; |
| 387 |
} |
| 388 |
|
| 389 |
static inline int spin_trylock(spinlock_t *lock) |
| 390 |
{ |
| 391 |
return !testandset(lock); |
| 392 |
} |
| 393 |
#else |
| 394 |
static inline void spin_lock(spinlock_t *lock) |
| 395 |
{ |
| 396 |
} |
| 397 |
|
| 398 |
static inline void spin_unlock(spinlock_t *lock) |
| 399 |
{ |
| 400 |
} |
| 401 |
|
| 402 |
static inline int spin_trylock(spinlock_t *lock) |
| 403 |
{ |
| 404 |
return 1; |
| 405 |
} |
| 406 |
#endif |
| 407 |
|
| 408 |
// Time data type for Time Manager emulation |
| 409 |
#ifdef HAVE_CLOCK_GETTIME |
| 410 |
typedef struct timespec tm_time_t; |
| 411 |
#else |
| 412 |
typedef struct timeval tm_time_t; |
| 413 |
#endif |
| 414 |
|
| 415 |
/* Define codes for all the float formats that we know of. |
| 416 |
* Though we only handle IEEE format. */ |
| 417 |
#define UNKNOWN_FLOAT_FORMAT 0 |
| 418 |
#define IEEE_FLOAT_FORMAT 1 |
| 419 |
#define VAX_FLOAT_FORMAT 2 |
| 420 |
#define IBM_FLOAT_FORMAT 3 |
| 421 |
#define C4X_FLOAT_FORMAT 4 |
| 422 |
|
| 423 |
// High-precision timing |
| 424 |
#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP) |
| 425 |
#define PRECISE_TIMING 1 |
| 426 |
#define PRECISE_TIMING_POSIX 1 |
| 427 |
#endif |
| 428 |
|
| 429 |
// Timing functions |
| 430 |
extern uint64 GetTicks_usec(void); |
| 431 |
extern void Delay_usec(uint32 usec); |
| 432 |
|
| 433 |
#ifdef HAVE_PTHREADS |
| 434 |
// Setup pthread attributes |
| 435 |
extern void Set_pthread_attr(pthread_attr_t *attr, int priority); |
| 436 |
#endif |
| 437 |
|
| 438 |
// Various definitions |
| 439 |
typedef struct rgb_color { |
| 440 |
uint8 red; |
| 441 |
uint8 green; |
| 442 |
uint8 blue; |
| 443 |
uint8 alpha; |
| 444 |
} rgb_color; |
| 445 |
|
| 446 |
// X11 display fast locks |
| 447 |
#if defined(HAVE_PTHREADS) |
| 448 |
#define X11_LOCK_TYPE pthread_mutex_t |
| 449 |
#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER |
| 450 |
#define XDisplayLock() pthread_mutex_lock(&x_display_lock); |
| 451 |
#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock); |
| 452 |
#elif defined(HAVE_SPINLOCKS) |
| 453 |
#define X11_LOCK_TYPE spinlock_t |
| 454 |
#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED |
| 455 |
#define XDisplayLock() spin_lock(&x_display_lock) |
| 456 |
#define XDisplayUnlock() spin_unlock(&x_display_lock) |
| 457 |
#else |
| 458 |
#define XDisplayLock() |
| 459 |
#define XDisplayUnlock() |
| 460 |
#endif |
| 461 |
#ifdef X11_LOCK_TYPE |
| 462 |
extern X11_LOCK_TYPE x_display_lock; |
| 463 |
#endif |
| 464 |
|
| 465 |
// Macro for calling MacOS routines |
| 466 |
#define CallMacOS(type, tvect) call_macos((uintptr)tvect) |
| 467 |
#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1) |
| 468 |
#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2) |
| 469 |
#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3) |
| 470 |
#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4) |
| 471 |
#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5) |
| 472 |
#define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6) |
| 473 |
#define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6, (uintptr)arg7) |
| 474 |
|
| 475 |
#ifdef __cplusplus |
| 476 |
extern "C" { |
| 477 |
#endif |
| 478 |
extern uint32 call_macos(uint32 tvect); |
| 479 |
extern uint32 call_macos1(uint32 tvect, uint32 arg1); |
| 480 |
extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2); |
| 481 |
extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3); |
| 482 |
extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4); |
| 483 |
extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5); |
| 484 |
extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6); |
| 485 |
extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7); |
| 486 |
#ifdef __cplusplus |
| 487 |
} |
| 488 |
#endif |
| 489 |
|
| 490 |
#endif |
