595 lines
15 KiB
C
595 lines
15 KiB
C
/* The common simulator framework for GDB, the GNU Debugger.
|
||
|
||
Copyright 2002-2015 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.ac, 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
|
||
|
||
|
||
|
||
/* 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. Default to all tracing but internal debug. */
|
||
|
||
#ifndef WITH_TRACE
|
||
#define WITH_TRACE (~TRACE_debug)
|
||
#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
|