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Diffstat (limited to 'sim/common/sim-config.h')
| -rw-r--r-- | sim/common/sim-config.h | 594 |
1 files changed, 594 insertions, 0 deletions
diff --git a/sim/common/sim-config.h b/sim/common/sim-config.h new file mode 100644 index 0000000..9720712 --- /dev/null +++ b/sim/common/sim-config.h @@ -0,0 +1,594 @@ +/* This file is part of the program psim. + + Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + */ + + +#ifndef SIM_CONFIG_H +#define SIM_CONFIG_H + + +/* Host dependant: + + The CPP below defines information about the compilation host. In + particular it defines the macro's: + + WITH_HOST_BYTE_ORDER The byte order of the host. Could + be any of LITTLE_ENDIAN, BIG_ENDIAN + or 0 (unknown). Those macro's also + need to be defined. + + */ + + +/* NetBSD: + + NetBSD is easy, everything you could ever want is in a header file + (well almost :-) */ + +#if defined(__NetBSD__) +# include <machine/endian.h> +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER BYTE_ORDER +# endif +# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER) +# error "host endian incorrectly configured, check config.h" +# endif +#endif + +/* Linux is similarly easy. */ + +#if defined(__linux__) +# include <endian.h> +# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN) +# define LITTLE_ENDIAN __LITTLE_ENDIAN +# endif +# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN) +# define BIG_ENDIAN __BIG_ENDIAN +# endif +# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER) +# define BYTE_ORDER __BYTE_ORDER +# endif +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER BYTE_ORDER +# endif +# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER) +# error "host endian incorrectly configured, check config.h" +# endif +#endif + +/* INSERT HERE - hosts that have available LITTLE_ENDIAN and + BIG_ENDIAN macro's */ + + +/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */ + +#ifndef LITTLE_ENDIAN +#define LITTLE_ENDIAN 1234 +#endif +#ifndef BIG_ENDIAN +#define BIG_ENDIAN 4321 +#endif + + +/* SunOS on SPARC: + + Big endian last time I looked */ + +#if defined(sparc) || defined(__sparc__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER BIG_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) +# error "sun was big endian last time I looked ..." +# endif +#endif + + +/* Random x86 + + Little endian last time I looked */ + +#if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) +# error "x86 was little endian last time I looked ..." +# endif +#endif + +#if (defined (__i486__) || defined (__i586__) || defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP +#undef htonl +#undef ntohl +#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; }) +#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; }) +#endif + +/* Power or PowerPC running AIX */ +#if defined(_POWER) && defined(_AIX) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER BIG_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) +# error "Power/PowerPC AIX was big endian last time I looked ..." +# endif +#endif + +/* Solaris running PowerPC */ +#if defined(__PPC) && defined(__sun__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) +# error "Solaris on PowerPCs was little endian last time I looked ..." +# endif +#endif + +/* HP/PA */ +#if defined(__hppa__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER BIG_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) +# error "HP/PA was big endian last time I looked ..." +# endif +#endif + +/* Big endian MIPS */ +#if defined(__MIPSEB__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER BIG_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) +# error "MIPSEB was big endian last time I looked ..." +# endif +#endif + +/* Little endian MIPS */ +#if defined(__MIPSEL__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) +# error "MIPSEL was little endian last time I looked ..." +# endif +#endif + +/* Windows NT */ +#if defined(__WIN32__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) +# error "Windows NT was little endian last time I looked ..." +# endif +#endif + +/* Alpha running DEC unix */ +#if defined(__osf__) && defined(__alpha__) +# if (WITH_HOST_BYTE_ORDER == 0) +# undef WITH_HOST_BYTE_ORDER +# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN +# endif +# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) +# error "AXP running DEC unix was little endian last time I looked ..." +# endif +#endif + + +/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and + BIG_ENDIAN definitions available. */ + +/* Until devices and tree properties are sorted out, tell sim-config.c + not to call the tree_find_foo fns. */ +#define WITH_TREE_PROPERTIES 0 + + +/* endianness of the host/target: + + If the build process is aware (at compile time) of the endianness + of the host/target it is able to eliminate slower generic endian + handling code. + + Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */ + +#ifndef WITH_HOST_BYTE_ORDER +#define WITH_HOST_BYTE_ORDER 0 /*unknown*/ +#endif + +#ifndef WITH_TARGET_BYTE_ORDER +#define WITH_TARGET_BYTE_ORDER 0 /*unknown*/ +#endif + +#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER +#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */ +#endif + +extern int current_host_byte_order; +#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \ + ? WITH_HOST_BYTE_ORDER \ + : current_host_byte_order) +extern int current_target_byte_order; +#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \ + ? WITH_TARGET_BYTE_ORDER \ + : current_target_byte_order) + + + +/* XOR endian. + + In addition to the above, the simulator can support the horrible + XOR endian mode (as found in the PowerPC and MIPS ISA). See + sim-core for more information. + + If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes + potentially involved in the XOR munge. A typical value is 8. */ + +#ifndef WITH_XOR_ENDIAN +#define WITH_XOR_ENDIAN 0 +#endif + + + +/* Intel host BSWAP support: + + Whether to use bswap on the 486 and pentiums rather than the 386 + sequence that uses xchgb/rorl/xchgb */ +#ifndef WITH_BSWAP +#define WITH_BSWAP 0 +#endif + + + +/* SMP support: + + Sets a limit on the number of processors that can be simulated. If + WITH_SMP is set to zero (0), the simulator is restricted to + suporting only one processor (and as a consequence leaves the SMP + code out of the build process). + + The actual number of processors is taken from the device + /options/smp@<nr-cpu> */ + +#if defined (WITH_SMP) && (WITH_SMP > 0) +#define MAX_NR_PROCESSORS WITH_SMP +#endif + +#ifndef MAX_NR_PROCESSORS +#define MAX_NR_PROCESSORS 1 +#endif + + +/* Size of target word, address and OpenFirmware Cell: + + The target word size is determined by the natural size of its + reginsters. + + On most hosts, the address and cell are the same size as a target + word. */ + +#ifndef WITH_TARGET_WORD_BITSIZE +#define WITH_TARGET_WORD_BITSIZE 32 +#endif + +#ifndef WITH_TARGET_ADDRESS_BITSIZE +#define WITH_TARGET_ADDRESS_BITSIZE WITH_TARGET_WORD_BITSIZE +#endif + +#ifndef WITH_TARGET_CELL_BITSIZE +#define WITH_TARGET_CELL_BITSIZE WITH_TARGET_WORD_BITSIZE +#endif + +#ifndef WITH_TARGET_FLOATING_POINT_BITSIZE +#define WITH_TARGET_FLOATING_POINT_BITSIZE 64 +#endif + + + +/* Most significant bit of target: + + Set this according to your target's bit numbering convention. For + the PowerPC it is zero, for many other targets it is 31 or 63. + + For targets that can both have either 32 or 64 bit words and number + MSB as 31, 63. Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */ + +#ifndef WITH_TARGET_WORD_MSB +#define WITH_TARGET_WORD_MSB 0 +#endif + + + +/* Program environment: + + Three environments are available - UEA (user), VEA (virtual) and + OEA (perating). The former two are environment that users would + expect to see (VEA includes things like coherency and the time + base) while OEA is what an operating system expects to see. By + setting these to specific values, the build process is able to + eliminate non relevent environment code. + + STATE_ENVIRONMENT(sd) specifies which of vea or oea is required for + the current runtime. + + ALL_ENVIRONMENT is used during configuration as a value for + WITH_ENVIRONMENT to indicate the choice is runtime selectable. + The default is then USER_ENVIRONMENT [since allowing the user to choose + the default at configure time seems like featuritis and since people using + OPERATING_ENVIRONMENT have more to worry about than selecting the + default]. + ALL_ENVIRONMENT is also used to set STATE_ENVIRONMENT to the + "uninitialized" state. */ + +enum sim_environment { + ALL_ENVIRONMENT, + USER_ENVIRONMENT, + VIRTUAL_ENVIRONMENT, + OPERATING_ENVIRONMENT +}; + +/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so. */ +#ifdef WITH_ENVIRONMENT +#define SIM_HAVE_ENVIRONMENT +#endif + +/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its + configure.in, the only supported environment is the user environment. */ +#ifndef WITH_ENVIRONMENT +#define WITH_ENVIRONMENT USER_ENVIRONMENT +#endif + +#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \ + ? WITH_ENVIRONMENT \ + : USER_ENVIRONMENT) + + +/* Callback & Modulo Memory. + + Core includes a builtin memory type (raw_memory) that is + implemented using an array. raw_memory does not require any + additional functions etc. + + Callback memory is where the core calls a core device for the data + it requires. Callback memory can be layered using priorities. + + Modulo memory is a variation on raw_memory where ADDRESS & (MODULO + - 1) is used as the index into the memory array. + + The OEA model uses callback memory for devices. + + The VEA model uses callback memory to capture `page faults'. + + BTW, while raw_memory could have been implemented as a callback, + profiling has shown that there is a biger win (at least for the + x86) in eliminating a function call for the most common + (raw_memory) case. */ + +#ifndef WITH_CALLBACK_MEMORY +#define WITH_CALLBACK_MEMORY 1 +#endif + +#ifndef WITH_MODULO_MEMORY +#define WITH_MODULO_MEMORY 0 +#endif + + + +/* Alignment: + + A processor architecture may or may not handle miss aligned + transfers. + + As alternatives: both little and big endian modes take an exception + (STRICT_ALIGNMENT); big and little endian models handle mis aligned + transfers (NONSTRICT_ALIGNMENT); or the address is forced into + alignment using a mask (FORCED_ALIGNMENT). + + Mixed alignment should be specified when the simulator needs to be + able to change the alignment requirements on the fly (eg for + bi-endian support). */ + +enum sim_alignments { + MIXED_ALIGNMENT, + NONSTRICT_ALIGNMENT, + STRICT_ALIGNMENT, + FORCED_ALIGNMENT, +}; + +extern enum sim_alignments current_alignment; + +#if !defined (WITH_ALIGNMENT) +#define WITH_ALIGNMENT 0 +#endif + +#if !defined (WITH_DEFAULT_ALIGNMENT) +#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */ +#endif + + + + +#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \ + ? WITH_ALIGNMENT \ + : current_alignment) + + + +/* Floating point suport: + + Should the processor trap for all floating point instructions (as + if the hardware wasn't implemented) or implement the floating point + instructions directly. */ + +#if defined (WITH_FLOATING_POINT) + +#define SOFT_FLOATING_POINT 1 +#define HARD_FLOATING_POINT 2 + +extern int current_floating_point; +#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \ + ? WITH_FLOATING_POINT \ + : current_floating_point) + +#endif + + + +/* Engine module. + + Use the common start/stop/restart framework (sim-engine). + Simulators using the other modules but not the engine should define + WITH_ENGINE=0. */ + +#ifndef WITH_ENGINE +#define WITH_ENGINE 1 +#endif + + + +/* Debugging: + + Control the inclusion of debugging code. + Debugging is only turned on in rare circumstances [say during development] + and is not intended to be turned on otherwise. */ + +#ifndef WITH_DEBUG +#define WITH_DEBUG 0 +#endif + +/* Include the tracing code. Disabling this eliminates all tracing + code */ + +#ifndef WITH_TRACE +#define WITH_TRACE (-1) +#endif + +/* Include the profiling code. Disabling this eliminates all profiling + code. */ + +#ifndef WITH_PROFILE +#define WITH_PROFILE (-1) +#endif + + +/* include code that checks assertions scattered through out the + program */ + +#ifndef WITH_ASSERT +#define WITH_ASSERT 1 +#endif + + +/* Whether to check instructions for reserved bits being set */ + +/* #define WITH_RESERVED_BITS 1 */ + + + +/* include monitoring code */ + +#define MONITOR_INSTRUCTION_ISSUE 1 +#define MONITOR_LOAD_STORE_UNIT 2 +/* do not define WITH_MON by default */ +#define DEFAULT_WITH_MON (MONITOR_LOAD_STORE_UNIT \ + | MONITOR_INSTRUCTION_ISSUE) + + +/* Current CPU model (models are in the generated models.h include file) */ +#ifndef WITH_MODEL +#define WITH_MODEL 0 +#endif + +#define CURRENT_MODEL (WITH_MODEL \ + ? WITH_MODEL \ + : current_model) + +#ifndef WITH_DEFAULT_MODEL +#define WITH_DEFAULT_MODEL DEFAULT_MODEL +#endif + +#define MODEL_ISSUE_IGNORE (-1) +#define MODEL_ISSUE_PROCESS 1 + +#ifndef WITH_MODEL_ISSUE +#define WITH_MODEL_ISSUE 0 +#endif + +extern int current_model_issue; +#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE \ + ? WITH_MODEL_ISSUE \ + : current_model_issue) + + + +/* Whether or not input/output just uses stdio, or uses printf_filtered for + output, and polling input for input. */ + +#define DONT_USE_STDIO 2 +#define DO_USE_STDIO 1 + +#ifndef WITH_STDIO +#define WITH_STDIO 0 +#endif + +extern int current_stdio; +#define CURRENT_STDIO (WITH_STDIO \ + ? WITH_STDIO \ + : current_stdio) + + + +/* Specify that configured calls pass parameters in registers when the + convention is that they are placed on the stack */ + +#ifndef WITH_REGPARM +#define WITH_REGPARM 0 +#endif + +/* Specify that configured calls use an alternative calling mechanism */ + +#ifndef WITH_STDCALL +#define WITH_STDCALL 0 +#endif + + +/* Set the default state configuration, before parsing argv. */ + +extern void sim_config_default (SIM_DESC sd); + +/* Complete and verify the simulator configuration. */ + +extern SIM_RC sim_config (SIM_DESC sd); + +/* Print the simulator configuration. */ + +extern void print_sim_config (SIM_DESC sd); + + +#endif |