RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

2000-08-11 Joel Sherrill <joel@OARcorp.com>

Browse Source 
* Shell added for or32 port based on no_cpu port with names replaced.
This commit is contained in:
Joel Sherrill
2000-08-11 21:59:52 +00:00
parent ee5110762e
commit 5377fed341
30 changed files with 3969 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
c/src/exec/score/cpu/or32/.cvsignore Normal file
View File

@@ -0,0 +1,13 @@
Makefile
Makefile.in
aclocal.m4
config.cache
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
missing
mkinstalldirs

3
c/src/exec/score/cpu/or32/ChangeLog Normal file
View File

@@ -0,0 +1,3 @@
2000-08-11 Joel Sherrill <joel@OARcorp.com>
* Shell added for or32 port based on no_cpu port with names replaced.

46
c/src/exec/score/cpu/or32/Makefile.am Normal file
View File

@@ -0,0 +1,46 @@
##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
ACLOCAL_AMFLAGS = -I $(RTEMS_TOPdir)/aclocal
SUBDIRS = rtems
C_FILES = cpu.c cpu_asm.c
C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
H_FILES = asm.h
REL = $(ARCH)/rtems-cpu.rel
rtems_cpu_rel_OBJECTS = $(C_O_FILES)
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../../../../../../automake/lib.am
$(PROJECT_INCLUDE):
$(mkinstalldirs) $@
$(PROJECT_INCLUDE)/%.h: %.h
$(INSTALL_DATA) $< $@
$(PROJECT_RELEASE)/lib/rtems$(LIB_VARIANT).o: $(ARCH)/rtems.o
$(INSTALL_DATA) $< $@
$(REL): $(rtems_cpu_rel_OBJECTS)
$(make-rel)
PREINSTALL_FILES += $(PROJECT_INCLUDE) $(H_FILES:%=$(PROJECT_INCLUDE)/%)
TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/rtems$(LIB_VARIANT).o
all-local: $(ARCH) $(PREINSTALL_FILES) $(rtems_cpu_rel_OBJECTS) $(REL) \
$(TMPINSTALL_FILES)
.PRECIOUS: $(REL)
EXTRA_DIST = asm.h cpu.c cpu_asm.c rtems.c
include $(top_srcdir)/../../../../../../automake/subdirs.am
include $(top_srcdir)/../../../../../../automake/local.am

101
c/src/exec/score/cpu/or32/asm.h Normal file
View File

@@ -0,0 +1,101 @@
/* asm.h
*
* This include file attempts to address the problems
* caused by incompatible flavors of assemblers and
* toolsets. It primarily addresses variations in the
* use of leading underscores on symbols and the requirement
* that register names be preceded by a %.
*
*
* NOTE: The spacing in the use of these macros
* is critical to them working as advertised.
*
* COPYRIGHT:
*
* This file is based on similar code found in newlib available
* from ftp.cygnus.com. The file which was used had no copyright
* notice. This file is freely distributable as long as the source
* of the file is noted. This file is:
*
* COPYRIGHT (c) 1994-1997.
* On-Line Applications Research Corporation (OAR).
*
* $Id$
*/
#ifndef __OR32_ASM_h
#define __OR32_ASM_h
/*
* Indicate we are in an assembly file and get the basic CPU definitions.
*/
#ifndef ASM
#define ASM
#endif
#include <rtems/score/cpuopts.h>
#include <rtems/score/or32.h>
/*
* Recent versions of GNU cpp define variables which indicate the
* need for underscores and percents. If not using GNU cpp or
* the version does not support this, then you will obviously
* have to define these as appropriate.
*/
#ifndef __USER_LABEL_PREFIX__
#define __USER_LABEL_PREFIX__ _
#endif
#ifndef __REGISTER_PREFIX__
#define __REGISTER_PREFIX__
#endif
/* ANSI concatenation macros. */
#define CONCAT1(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
/* Use the right prefix for global labels. */
#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
/* Use the right prefix for registers. */
#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
/*
* define macros for all of the registers on this CPU
*
* EXAMPLE: #define d0 REG (d0)
*/
/*
* Define macros to handle section beginning and ends.
*/
#define BEGIN_CODE_DCL .text
#define END_CODE_DCL
#define BEGIN_DATA_DCL .data
#define END_DATA_DCL
#define BEGIN_CODE .text
#define END_CODE
#define BEGIN_DATA
#define END_DATA
#define BEGIN_BSS
#define END_BSS
#define END
/*
* Following must be tailor for a particular flavor of the C compiler.
* They may need to put underscores in front of the symbols.
*/
#define PUBLIC(sym) .globl SYM (sym)
#define EXTERN(sym) .globl SYM (sym)
#endif
/* end of include file */

31
c/src/exec/score/cpu/or32/configure.in Normal file
View File

@@ -0,0 +1,31 @@
dnl Process this file with autoconf to produce a configure script.
dnl
dnl $Id$
AC_PREREQ(2.13)
AC_INIT(cpu_asm.c)
RTEMS_TOP(../../../../../..)
AC_CONFIG_AUX_DIR(../../../../../..)
RTEMS_CANONICAL_TARGET_CPU
AM_INIT_AUTOMAKE(rtems-c-src-exec-score-cpu-or32,$RTEMS_VERSION,no)
AM_MAINTAINER_MODE
RTEMS_ENV_RTEMSCPU
RTEMS_CHECK_CPU
RTEMS_CANONICAL_HOST
RTEMS_PROJECT_ROOT
RTEMS_PROG_CC_FOR_TARGET
RTEMS_CANONICALIZE_TOOLS
RTEMS_CHECK_NEWLIB
# Explicitly list all Makefiles here
AC_OUTPUT(
Makefile
rtems/Makefile
rtems/score/Makefile)

185
c/src/exec/score/cpu/or32/cpu.c Normal file
View File

@@ -0,0 +1,185 @@
/*
* XXX CPU Dependent Source
*
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/score/isr.h>
#include <rtems/score/wkspace.h>
/* _CPU_Initialize
*
* This routine performs processor dependent initialization.
*
* INPUT PARAMETERS:
* cpu_table - CPU table to initialize
* thread_dispatch - address of disptaching routine
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Initialize(
rtems_cpu_table *cpu_table,
void (*thread_dispatch) /* ignored on this CPU */
)
{
/*
* The thread_dispatch argument is the address of the entry point
* for the routine called at the end of an ISR once it has been
* decided a context switch is necessary. On some compilation
* systems it is difficult to call a high-level language routine
* from assembly. This allows us to trick these systems.
*
* If you encounter this problem save the entry point in a CPU
* dependent variable.
*/
_CPU_Thread_dispatch_pointer = thread_dispatch;
/*
* If there is not an easy way to initialize the FP context
* during Context_Initialize, then it is usually easier to
* save an "uninitialized" FP context here and copy it to
* the task's during Context_Initialize.
*/
/* FP context initialization support goes here */
_CPU_Table = *cpu_table;
}
/*PAGE
*
* _CPU_ISR_Get_level
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
unsigned32 _CPU_ISR_Get_level( void )
{
/*
* This routine returns the current interrupt level.
*/
return 0;
}
/*PAGE
*
* _CPU_ISR_install_raw_handler
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_ISR_install_raw_handler(
unsigned32 vector,
proc_ptr new_handler,
proc_ptr *old_handler
)
{
/*
* This is where we install the interrupt handler into the "raw" interrupt
* table used by the CPU to dispatch interrupt handlers.
*/
}
/*PAGE
*
* _CPU_ISR_install_vector
*
* This kernel routine installs the RTEMS handler for the
* specified vector.
*
* Input parameters:
* vector - interrupt vector number
* old_handler - former ISR for this vector number
* new_handler - replacement ISR for this vector number
*
* Output parameters: NONE
*
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_ISR_install_vector(
unsigned32 vector,
proc_ptr new_handler,
proc_ptr *old_handler
)
{
*old_handler = _ISR_Vector_table[ vector ];
/*
* If the interrupt vector table is a table of pointer to isr entry
* points, then we need to install the appropriate RTEMS interrupt
* handler for this vector number.
*/
_CPU_ISR_install_raw_handler( vector, new_handler, old_handler );
/*
* We put the actual user ISR address in '_ISR_vector_table'. This will
* be used by the _ISR_Handler so the user gets control.
*/
_ISR_Vector_table[ vector ] = new_handler;
}
/*PAGE
*
* _CPU_Install_interrupt_stack
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Install_interrupt_stack( void )
{
}
/*PAGE
*
* _CPU_Thread_Idle_body
*
* NOTES:
*
* 1. This is the same as the regular CPU independent algorithm.
*
* 2. If you implement this using a "halt", "idle", or "shutdown"
* instruction, then don't forget to put it in an infinite loop.
*
* 3. Be warned. Some processors with onboard DMA have been known
* to stop the DMA if the CPU were put in IDLE mode. This might
* also be a problem with other on-chip peripherals. So use this
* hook with caution.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Thread_Idle_body( void )
{
for( ; ; )
/* insert your "halt" instruction here */ ;
}

183
c/src/exec/score/cpu/or32/cpu_asm.c Normal file
View File

@@ -0,0 +1,183 @@
/* cpu_asm.c ===> cpu_asm.S or cpu_asm.s
*
* This file contains the basic algorithms for all assembly code used
* in an specific CPU port of RTEMS. These algorithms must be implemented
* in assembly language
*
* NOTE: This is supposed to be a .S or .s file NOT a C file.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
/*
* This is supposed to be an assembly file. This means that system.h
* and cpu.h should not be included in a "real" cpu_asm file. An
* implementation in assembly should include "cpu_asm.h>
*/
#include <rtems/system.h>
#include <rtems/score/cpu.h>
/* #include "cpu_asm.h> */
/*
* _CPU_Context_save_fp_context
*
* This routine is responsible for saving the FP context
* at *fp_context_ptr. If the point to load the FP context
* from is changed then the pointer is modified by this routine.
*
* Sometimes a macro implementation of this is in cpu.h which dereferences
* the ** and a similarly named routine in this file is passed something
* like a (Context_Control_fp *). The general rule on making this decision
* is to avoid writing assembly language.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Context_save_fp(
void **fp_context_ptr
)
{
}
/*
* _CPU_Context_restore_fp_context
*
* This routine is responsible for restoring the FP context
* at *fp_context_ptr. If the point to load the FP context
* from is changed then the pointer is modified by this routine.
*
* Sometimes a macro implementation of this is in cpu.h which dereferences
* the ** and a similarly named routine in this file is passed something
* like a (Context_Control_fp *). The general rule on making this decision
* is to avoid writing assembly language.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Context_restore_fp(
void **fp_context_ptr
)
{
}
/* _CPU_Context_switch
*
* This routine performs a normal non-FP context switch.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Context_switch(
Context_Control *run,
Context_Control *heir
)
{
}
/*
* _CPU_Context_restore
*
* This routine is generally used only to restart self in an
* efficient manner. It may simply be a label in _CPU_Context_switch.
*
* NOTE: May be unnecessary to reload some registers.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _CPU_Context_restore(
Context_Control *new_context
)
{
}
/* void __ISR_Handler()
*
* This routine provides the RTEMS interrupt management.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void _ISR_Handler()
{
/*
* This discussion ignores a lot of the ugly details in a real
* implementation such as saving enough registers/state to be
* able to do something real. Keep in mind that the goal is
* to invoke a user's ISR handler which is written in C and
* uses a certain set of registers.
*
* Also note that the exact order is to a large extent flexible.
* Hardware will dictate a sequence for a certain subset of
* _ISR_Handler while requirements for setting
*/
/*
* At entry to "common" _ISR_Handler, the vector number must be
* available. On some CPUs the hardware puts either the vector
* number or the offset into the vector table for this ISR in a
* known place. If the hardware does not give us this information,
* then the assembly portion of RTEMS for this port will contain
* a set of distinct interrupt entry points which somehow place
* the vector number in a known place (which is safe if another
* interrupt nests this one) and branches to _ISR_Handler.
*
* save some or all context on stack
* may need to save some special interrupt information for exit
*
* #if ( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE )
* if ( _ISR_Nest_level == 0 )
* switch to software interrupt stack
* #endif
*
* _ISR_Nest_level++;
*
* _Thread_Dispatch_disable_level++;
*
* (*_ISR_Vector_table[ vector ])( vector );
*
* --_ISR_Nest_level;
*
* if ( _ISR_Nest_level )
* goto the label "exit interrupt (simple case)"
*
* #if ( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE )
* restore stack
* #endif
*
* if ( !_Context_Switch_necessary )
* goto the label "exit interrupt (simple case)"
*
* if ( !_ISR_Signals_to_thread_executing )
* _ISR_Signals_to_thread_executing = FALSE;
* goto the label "exit interrupt (simple case)"
*
* call _Thread_Dispatch() or prepare to return to _ISR_Dispatch
*
* prepare to get out of interrupt
* return from interrupt (maybe to _ISR_Dispatch)
*
* LABEL "exit interrupt (simple case):
* prepare to get out of interrupt
* return from interrupt
*/
}

48
c/src/exec/score/cpu/or32/rtems.c Normal file
View File

@@ -0,0 +1,48 @@
/* rtems.c ===> rtems.S or rtems.s
*
* This file contains the single entry point code for
* the XXX implementation of RTEMS.
*
* NOTE: This is supposed to be a .S or .s file NOT a C file.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
/*
* This is supposed to be an assembly file. This means that system.h
* and cpu.h should not be included in a "real" rtems file.
*/
#include <rtems/system.h>
#include <rtems/score/cpu.h>
/* #include "asm.h> */
/*
* RTEMS
*
* This routine jumps to the directive indicated in the
* CPU defined register. This routine is used when RTEMS is
* linked by itself and placed in ROM. This routine is the
* first address in the ROM space for RTEMS. The user "calls"
* this address with the directive arguments in the normal place.
* This routine then jumps indirectly to the correct directive
* preserving the arguments. The directive should not realize
* it has been "wrapped" in this way. The table "_Entry_points"
* is used to look up the directive.
*
* OR32 Specific Information:
*
* XXX document implementation including references if appropriate
*/
void RTEMS()
{
}

2
c/src/exec/score/cpu/or32/rtems/.cvsignore Normal file
View File

@@ -0,0 +1,2 @@
Makefile
Makefile.in

10
c/src/exec/score/cpu/or32/rtems/Makefile.am Normal file
View File

@@ -0,0 +1,10 @@
##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
SUBDIRS = score
include $(top_srcdir)/../../../../../../automake/subdirs.am
include $(top_srcdir)/../../../../../../automake/local.am

2
c/src/exec/score/cpu/or32/rtems/score/.cvsignore Normal file
View File

@@ -0,0 +1,2 @@
Makefile
Makefile.in

25
c/src/exec/score/cpu/or32/rtems/score/Makefile.am Normal file
View File

@@ -0,0 +1,25 @@
##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
H_FILES = cpu.h or32.h cpu_asm.h or32types.h
noinst_HEADERS = $(H_FILES)
#
# (OPTIONAL) Add local stuff here using +=
#
PREINSTALL_FILES += $(PROJECT_INCLUDE)/rtems/score \
$(H_FILES:%.h=$(PROJECT_INCLUDE)/rtems/score/%.h)
$(PROJECT_INCLUDE)/rtems/score:
$(mkinstalldirs) $@
$(PROJECT_INCLUDE)/rtems/score/%.h: %.h
$(INSTALL_DATA) $< $@
all-local: $(PREINSTALL_FILES)
include $(top_srcdir)/../../../../../../automake/local.am

1118
c/src/exec/score/cpu/or32/rtems/score/cpu.h Normal file
View File

File diff suppressed because it is too large Load Diff

70
c/src/exec/score/cpu/or32/rtems/score/cpu_asm.h Normal file
View File

@@ -0,0 +1,70 @@
/*
* cpu_asm.h
*
* Very loose template for an include file for the cpu_asm.? file
* if it is implemented as a ".S" file (preprocessed by cpp) instead
* of a ".s" file (preprocessed by gm4 or gasp).
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*
*/
#ifndef __CPU_ASM_h
#define __CPU_ASM_h
/* pull in the generated offsets */
#include <rtems/score/offsets.h>
/*
* Hardware General Registers
*/
/* put something here */
/*
* Hardware Floating Point Registers
*/
/* put something here */
/*
* Hardware Control Registers
*/
/* put something here */
/*
* Calling Convention
*/
/* put something here */
/*
* Temporary registers
*/
/* put something here */
/*
* Floating Point Registers - SW Conventions
*/
/* put something here */
/*
* Temporary floating point registers
*/
/* put something here */
#endif
/* end of file */

70
c/src/exec/score/cpu/or32/rtems/score/or32.h Normal file
View File

@@ -0,0 +1,70 @@
/* or32.h
*
* This file sets up basic CPU dependency settings based on
* compiler settings. For example, it can determine if
* floating point is available. This particular implementation
* is specified to the OPENCORES.ORG OR32 port.
*
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*
*/
#ifndef _INCLUDE_OR32_h
#define _INCLUDE_OR32_h
#ifdef __cplusplus
extern "C" {
#endif
/*
* This file contains the information required to build
* RTEMS for a particular member of the OPENCORES.ORG OR32 family.
* It does this by setting variables to indicate which
* implementation dependent features are present in a particular
* member of the family.
*
* This is a good place to list all the known CPU models
* that this port supports and which RTEMS CPU model they correspond
* to.
*/
#if defined(rtems_multilib)
/*
* Figure out all CPU Model Feature Flags based upon compiler
* predefines.
*/
#define CPU_MODEL_NAME "rtems_multilib"
#define OR32_HAS_FPU 1
#elif defined(or32)
#define CPU_MODEL_NAME "or32_model"
#define OR32_HAS_FPU 1
#else
#error "Unsupported CPU Model"
#endif
/*
* Define the name of the CPU family.
*/
#define CPU_NAME "OPENCORES.ORG OR32"
#ifdef __cplusplus
}
#endif
#endif /* ! _INCLUDE_OR32_h */
/* end of include file */

56
c/src/exec/score/cpu/or32/rtems/score/or32types.h Normal file
View File

@@ -0,0 +1,56 @@
/* or32types.h
*
* This include file contains type definitions pertaining to the Intel
* or32 processor family.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef __OR32_TYPES_h
#define __OR32_TYPES_h
#ifndef ASM
#ifdef __cplusplus
extern "C" {
#endif
/*
* This section defines the basic types for this processor.
*/
typedef unsigned char unsigned8; /* unsigned 8-bit integer */
typedef unsigned short unsigned16; /* unsigned 16-bit integer */
typedef unsigned int unsigned32; /* unsigned 32-bit integer */
typedef unsigned long long unsigned64; /* unsigned 64-bit integer */
typedef unsigned16 Priority_Bit_map_control;
typedef signed char signed8; /* 8-bit signed integer */
typedef signed short signed16; /* 16-bit signed integer */
typedef signed int signed32; /* 32-bit signed integer */
typedef signed long long signed64; /* 64 bit signed integer */
typedef unsigned32 boolean; /* Boolean value */
typedef float single_precision; /* single precision float */
typedef double double_precision; /* double precision float */
typedef void or32_isr;
typedef void ( *or32_isr_entry )( void );
#ifdef __cplusplus
}
#endif
#endif /* !ASM */
#endif
/* end of include file */

56
c/src/exec/score/cpu/or32/rtems/score/types.h Normal file
View File

@@ -0,0 +1,56 @@
/* or32types.h
*
* This include file contains type definitions pertaining to the Intel
* or32 processor family.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef __OR32_TYPES_h
#define __OR32_TYPES_h
#ifndef ASM
#ifdef __cplusplus
extern "C" {
#endif
/*
* This section defines the basic types for this processor.
*/
typedef unsigned char unsigned8; /* unsigned 8-bit integer */
typedef unsigned short unsigned16; /* unsigned 16-bit integer */
typedef unsigned int unsigned32; /* unsigned 32-bit integer */
typedef unsigned long long unsigned64; /* unsigned 64-bit integer */
typedef unsigned16 Priority_Bit_map_control;
typedef signed char signed8; /* 8-bit signed integer */
typedef signed short signed16; /* 16-bit signed integer */
typedef signed int signed32; /* 32-bit signed integer */
typedef signed long long signed64; /* 64 bit signed integer */
typedef unsigned32 boolean; /* Boolean value */
typedef float single_precision; /* single precision float */
typedef double double_precision; /* double precision float */
typedef void or32_isr;
typedef void ( *or32_isr_entry )( void );
#ifdef __cplusplus
}
#endif
#endif /* !ASM */
#endif
/* end of include file */