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authorJoel Sherrill <joel.sherrill@OARcorp.com>2001-05-09 13:12:23 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2001-05-09 13:12:23 +0000
commitf0ef873cca7d6cc07ad7b81a1459d64fae18c723 (patch)
treefceba9f14b42f62bb54b131c59e57d56557796b5 /c/src/lib/libbsp/sh/shsim
parentba91ea3d669d50590d3386640f2672e6d0124ce9 (diff)
downloadrtems-f0ef873cca7d6cc07ad7b81a1459d64fae18c723.tar.bz2
2001-05-09 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* scitab/.cvsignore: Add. * configure.in: Add --enable-console, CPU_CLOCK_RATE_HZ, autoheader bspopt.h. * include/bsp.h: Complete rewrite based on the AMOS-BSP. * README: Update. * bsp_specs: copy from gensh1
Diffstat (limited to 'c/src/lib/libbsp/sh/shsim')
-rw-r--r--c/src/lib/libbsp/sh/shsim/ChangeLog9
-rw-r--r--c/src/lib/libbsp/sh/shsim/README18
-rw-r--r--c/src/lib/libbsp/sh/shsim/bsp_specs15
-rw-r--r--c/src/lib/libbsp/sh/shsim/configure.in54
-rw-r--r--c/src/lib/libbsp/sh/shsim/include/bsp.h92
-rw-r--r--c/src/lib/libbsp/sh/shsim/scitab/.cvsignore2
6 files changed, 154 insertions, 36 deletions
diff --git a/c/src/lib/libbsp/sh/shsim/ChangeLog b/c/src/lib/libbsp/sh/shsim/ChangeLog
index 3604cceb78..51dd0081d3 100644
--- a/c/src/lib/libbsp/sh/shsim/ChangeLog
+++ b/c/src/lib/libbsp/sh/shsim/ChangeLog
@@ -1,3 +1,12 @@
+2001-05-09 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
+
+ * scitab/.cvsignore: Add.
+ * configure.in: Add --enable-console, CPU_CLOCK_RATE_HZ, autoheader
+ bspopt.h.
+ * include/bsp.h: Complete rewrite based on the AMOS-BSP.
+ * README: Update.
+ * bsp_specs: copy from gensh1
+
2001-01-29 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* Makefile.am: Add scitab, gdbsci to SUBDIRS.
diff --git a/c/src/lib/libbsp/sh/shsim/README b/c/src/lib/libbsp/sh/shsim/README
index 217db75fac..ffe63489ab 100644
--- a/c/src/lib/libbsp/sh/shsim/README
+++ b/c/src/lib/libbsp/sh/shsim/README
@@ -23,8 +23,8 @@ simulator better use gdb versions > 5.0.
* gdb's simulator is not able to correctly emulate memory areas esp. shadowing
and non-consecutive memory. I.e. access to memory areas besides area 0 will
(bogusly) generate SIGBUS exceptions. This includes access to area 5
-(On-chip peripherials) and prevents simulation of configuration of
-accesses to on-chip peripherials.
+(On-chip peripherials) and prevents simulation of configuration and access
+to on-chip peripherials.
* Due to limitations of the simulator you will only be able to run
applications which do not try to access any SH control registers.
@@ -32,5 +32,15 @@ applications which do not try to access any SH control registers.
Currently, this excludes all applications, which apply timers and serial
devices, i.e. almost any real world application.
-* The simulator currently uses gdb's trap34 interface for console I/O. This
-could be replaced with polled sci1 I/O for SHes > SH1.
+* This BSP supports 3 different console devices (cf. configure --help):
+- trap34, an interface base on gdb's trap34 emulation. Known to work with
+ gdb-5.0.
+- gdbsci1, a stripped down sci device driver adapted to apply gdb's sci1
+emulation. This is known to fail with gdb-5.0, because of a bug in gdb-5.0's
+sh-sim, a patch is submitted, but .. ~==
+- devnull, redirection of console io to /dev/null. Try to single step this,
+if you want to understand the details on how SH-RTEMS console redirection
+works.
+
+NOTE: the trap34 interface is incomplete and is temporarily disabled
+inside of configure.in.
diff --git a/c/src/lib/libbsp/sh/shsim/bsp_specs b/c/src/lib/libbsp/sh/shsim/bsp_specs
index eecf37c5a0..90ab779f9e 100644
--- a/c/src/lib/libbsp/sh/shsim/bsp_specs
+++ b/c/src/lib/libbsp/sh/shsim/bsp_specs
@@ -8,16 +8,15 @@
%(old_cpp) %{qrtems: -D__embedded__} -Asystem(embedded)
*lib:
-%{!qrtems: %(old_lib)} %{qrtems: --start-group \
-%{!qrtems_debug: -lrtemsall} %{qrtems_debug: -lrtemsall_g} \
--lc -lgcc --end-group \
-%{!qnolinkcmds: -T linkcmds%s}}
+%{!qrtems: %(old_lib)} \
+%{qrtems: --start-group %{!qrtems_debug: -lrtemsall } %{qrtems_debug: -lrtemsall_g} \
+ -lc -lgcc --end-group \
+ %{!qnolinkcmds: -T linkcmds%s}}
*startfile:
-%{!qrtems: %(old_startfile)} %{qrtems: \
-%{!qrtems_debug: start.o%s} \
-%{qrtems_debug: start_g.o%s}}
+%{!qrtems: %(old_startfile)} \
+%{qrtems: %{qrtems_debug: start_g.o%s} %{!qrtems_debug: start.o%s}}
*link:
-%(old_link) %{!qrtems: %(old_link)} %{qrtems: -dc -dp -N -e _start}
+%(old_link) %{qrtems: -dc -dp -N -e _start}
diff --git a/c/src/lib/libbsp/sh/shsim/configure.in b/c/src/lib/libbsp/sh/shsim/configure.in
index e537f6d331..b1bee213ce 100644
--- a/c/src/lib/libbsp/sh/shsim/configure.in
+++ b/c/src/lib/libbsp/sh/shsim/configure.in
@@ -19,6 +19,58 @@ RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP)
RTEMS_CHECK_BSP_CACHE(RTEMS_BSP)
RTEMS_CANONICAL_HOST
+RTEMS_BSP_ARG_ENABLE([console],
+[ --enable-console=[[null|gdbsci1]]],[
+ case $enable_console in
+ null)
+ BSP_CONSOLE_DEVNAME=\"/dev/null\"
+ BSP_CONSOLE_DRIVER_TABLE_ENTRY=DEVNULL_DRIVER_TABLE_ENTRY
+ ;;
+# Not yet
+# trap34)
+# BSP_CONSOLE_DEVNAME=\"/dev/trap34\"
+# BSP_CONSOLE_DRIVER_TABLE_ENTRY=DEVTRAP34_DRIVER_TABLE_ENTRY
+# ;;
+ yes|gdbsci1)
+ BSP_CONSOLE_DEVNAME=\"/dev/gdbsci1\"
+ BSP_CONSOLE_DRIVER_TABLE_ENTRY=DEVGDBSCI_DRIVER_TABLE_ENTRY
+ ;;
+ *) AC_MSG_WARN([bad value $enable_console for --enable-console=<value>])
+ ;;
+ esac],[
+ BSP_CONSOLE_DEVNAME=\"/dev/gdbsci1\"
+ BSP_CONSOLE_DRIVER_TABLE_ENTRY=DEVGDBSCI_DRIVER_TABLE_ENTRY
+])
+AC_DEFINE_UNQUOTED(
+ [BSP_CONSOLE_DEVNAME],
+ [${BSP_CONSOLE_DEVNAME}],
+ [device name to redirect the console to])
+AC_DEFINE_UNQUOTED(
+ [BSP_CONSOLE_DRIVER_TABLE_ENTRY],
+ [${BSP_CONSOLE_DRIVER_TABLE_ENTRY}],
+ [Driver table entry for the console device])
+
+##
+RTEMS_BSP_ARG_ENABLE([iomem-patch],
+[ --enable-iomem-patch=[[yes|no]]])
+if test x"$enable_iomem_patch" = x"yes"; then
+AC_DEFINE_UNQUOTED(
+ [HAVE_SHSIM_IOMEM_PATCH],
+ [1],
+ [whether support for functional IOMEM in shsim/gdb shall be enabled])
+fi
+
+## setup environment variable
+CPU_CLOCK_RATE_HZ=${CPU_CLOCK_RATE_HZ-20000000}
+AC_SUBST(CPU_CLOCK_RATE_HZ)
+## Propagate option to config header
+AC_DEFINE_UNQUOTED(
+ [CPU_CLOCK_RATE_HZ],
+ [$CPU_CLOCK_RATE_HZ],
+ [cpu clock rate in HZ])
+
+AM_CONFIG_HEADER(include/bspopts.h)
+
RTEMS_PROJECT_ROOT
# Explicitly list all Makefiles here
@@ -27,6 +79,8 @@ Makefile
clock/Makefile
console/Makefile
include/Makefile
+scitab/Makefile
+gdbsci/Makefile
start/Makefile
startup/Makefile
wrapup/Makefile)
diff --git a/c/src/lib/libbsp/sh/shsim/include/bsp.h b/c/src/lib/libbsp/sh/shsim/include/bsp.h
index e2e9c0fb57..ae72550213 100644
--- a/c/src/lib/libbsp/sh/shsim/include/bsp.h
+++ b/c/src/lib/libbsp/sh/shsim/include/bsp.h
@@ -1,29 +1,53 @@
-/* bsp.h
+/*
+ * This include file contains all board IO definitions.
+ *
+ * SH-gdb simulator BSP
*
- * This include file contains some definitions specific to the
- * JMR3904 simulator in gdb.
+ * Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
*
- * COPYRIGHT (c) 1989-2000.
+ * COPYRIGHT (c) 2001, Ralf Corsepius, Ulm, Germany
+ *
+ * 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.
+ *
+ * COPYRIGHT (c) 2001.
* 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.
*
- * $Id$
+ * $Id$
*/
-#ifndef __JMR3904_h
-#define __JMR3904_h
+#ifndef __bsp_h
+#define __bsp_h
#ifdef __cplusplus
extern "C" {
#endif
#include <rtems.h>
-#include <iosupp.h>
-#include <console.h>
#include <clockdrv.h>
+#include <console.h>
+
+/*
+ * confdefs.h overrides for this BSP:
+ * - number of termios serial ports (defaults to 1)
+ * - Interrupt stack space is not minimum if defined.
+ */
+
+#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 0
+#define CONFIGURE_INTERRUPT_STACK_MEMORY (4 * 1024)
+
+#include <bspopts.h>
+
+/*
+ * FIXME: One of these would be enough.
+ */
+#include <gdbsci.h>
+#include <rtems/devnull.h>
/*
* Define the time limits for RTEMS Test Suite test durations.
@@ -31,52 +55,72 @@ extern "C" {
* values are in seconds and need to be converted to ticks for the
* application.
*
+ * FIXME: This should not be here.
*/
#define MAX_LONG_TEST_DURATION 300 /* 5 minutes = 300 seconds */
#define MAX_SHORT_TEST_DURATION 3 /* 3 seconds */
/*
- * Define the interrupt mechanism for Time Test 27
- *
- * NOTE: Following are for XXX and are board independent
+ * Stuff for Time Test 27
*
+ * FIXME: This should not be here.
*/
#define MUST_WAIT_FOR_INTERRUPT 0
-#define Install_tm27_vector( handler )
+#define Install_tm27_vector( handler )
+#define Cause_tm27_intr()
+#define Clear_tm27_intr()
+
+/* Constants */
-#define Cause_tm27_intr()
+/*
+ * Simple spin delay in microsecond units for device drivers.
+ * This is very dependent on the clock speed of the target.
+ *
+ * FIXME: Not applicable with gdb's simulator
+ * Kept for sourcecode compatibility with other sh-BSPs
+ */
+#define delay( microseconds ) CPU_delay(microseconds)
+#define sh_delay( microseconds ) CPU_delay(microseconds)
-#define Clear_tm27_intr()
+/*
+ * Defined in the linker script 'linkcmds'
+ */
-#define Lower_tm27_intr()
+extern unsigned32 HeapStart ;
+extern unsigned32 HeapEnd ;
+extern unsigned32 WorkSpaceStart ;
+extern unsigned32 WorkSpaceEnd ;
-/* Constants */
+extern void *CPU_Interrupt_stack_low ;
+extern void *CPU_Interrupt_stack_high ;
+
/* miscellaneous stuff assumed to exist */
extern rtems_configuration_table BSP_Configuration;
+extern void bsp_cleanup( void );
+
/*
* Device Driver Table Entries
*/
/*
- * NOTE: Use the standard Console driver entry
+ * Redefine CONSOLE_DRIVER_TABLE_ENTRY to redirect /dev/console
*/
+#undef CONSOLE_DRIVER_TABLE_ENTRY
+#define CONSOLE_DRIVER_TABLE_ENTRY \
+ BSP_CONSOLE_DRIVER_TABLE_ENTRY, \
+ { console_initialize, console_open, console_close, \
+ console_read, console_write, console_control }
/*
* NOTE: Use the standard Clock driver entry
*/
-/* functions */
-
-void bsp_cleanup( void );
-
-/* i960_isr_entry set_vector( rtems_isr_entry, unsigned int, unsigned int ); */
-
#ifdef __cplusplus
}
#endif
diff --git a/c/src/lib/libbsp/sh/shsim/scitab/.cvsignore b/c/src/lib/libbsp/sh/shsim/scitab/.cvsignore
new file mode 100644
index 0000000000..282522db03
--- /dev/null
+++ b/c/src/lib/libbsp/sh/shsim/scitab/.cvsignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in