| /* The common simulator framework for GDB, the GNU Debugger. |
| |
| Copyright 2002, 2004, 2007, 2008 Free Software Foundation, Inc. |
| |
| Contributed by Andrew Cagney and Red Hat. |
| |
| This file is part of GDB. |
| |
| 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 3 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, see <http://www.gnu.org/licenses/>. */ |
| |
| |
| #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) |
| |
| /* To be prepended to simulator calls with absolute file paths and |
| chdir:ed at startup. */ |
| extern char *simulator_sysroot; |
| |
| /* 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 |