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PowerPC PSIM simulator for FreeBSD/PowerPC kernel development.

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Submitted by:	mp (emblishment by me)
This commit is contained in:
David E. O'Brien 2001-10-12 21:42:54 +00:00
parent 10b84eefce
commit 7f3526b918
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=48720
14 changed files with 275 additions and 0 deletions
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1
emulators/Makefile
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@ -36,6 +36,7 @@
SUBDIR += p-interp
SUBDIR += pcemu
SUBDIR += prodosemu
SUBDIR += psim-freebsd
SUBDIR += qcl
SUBDIR += quasi88
SUBDIR += rtc

43
emulators/psim-freebsd/Makefile Normal file
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@ -0,0 +1,43 @@
# ex:ts=8
# Ports collection makefile for: GDB 5.1 PowerPC simulator
# Date created: 12 October 2001
# Whom: Mark Peek <mp@FreeBSD.org>
# David O'Brien <obrien@NUXI.com>
# $FreeBSD$
#
SNAPDATE= 2001-10-12
SNAPVER= ${SNAPDATE:S/-//g}
PORTNAME= psim-freebsd
PORTVERSION= ${SNAPVER}
CATEGORIES= emulators
MASTER_SITES= ${MASTER_SITE_SOURCEWARE}
MASTER_SITE_SUBDIR= gdb/snapshots
DISTNAME= gdb+dejagnu-${SNAPVER}
MAINTAINER= mp@FreeBSD.org
USE_BZIP2= yes
.include <bsd.port.pre.mk>
USE_GMAKE= yes
GNU_CONFIGURE= yes
CONFIGURE_TARGET= ${ARCH}-portbld-freebsd${OSREL}
CONFIGURE_ARGS= --enable-psim --target=powerpc-freebsd-elf --program-suffix=psim
pre-configure:
cd ${WRKSRC} ; ${RM} -rf dejagnu expect tcl texinfo
do-install:
${INSTALL_PROGRAM} ${WRKSRC}/gdb/gdb ${PREFIX}/bin/${PORTNAME}
${MKDIR} ${PREFIX}/share/examples/${PORTNAME}
${INSTALL_DATA} ${FILESDIR}/dot.gdbinit \
${PREFIX}/share/examples/${PORTNAME}
.if !defined(NOPORTDOCS)
@${MKDIR} ${DOCSDIR}
${INSTALL_DATA} ${FILESDIR}/HOW-TO ${DOCSDIR}
.endif
.include <bsd.port.post.mk>

1
emulators/psim-freebsd/distinfo Normal file
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@ -0,0 +1 @@
MD5 (gdb+dejagnu-20011012.tar.bz2) = 6e9dc1079113a64447b804018e8cfc07

69
emulators/psim-freebsd/files/HOW-TO Normal file
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@ -0,0 +1,69 @@
$FreeBSD$
Instructions for building and running the FreeBSD kernel under PSIM:
1. On a FreeBSD system, check out a new source tree and run:
# cd src/sys/powerpc/conf
# config -g GENERIC
2. On a NetBSD PPC system with the source NFS mounted, apply the Makefile.patch
to add the proper CWARN flags and remove the "-elf" flag.
Compile the kernel (your mount point may vary):
# make -m /mnt/share/mk MACHINE_ARCH=powerpc
3. On the FreeBSD system, grap /usr/src/release/write_mfs_in_kernel.c and
run it using <http://people.freebsd.org/~mp/psim/ppcdisk.bz2> to add
the md image:
# ./write_mfs_in_kernel kernel.debug ppcdisk
5. Run the simulator. The following .gdbinit is available as
/usr/local/share/examples/psim-freebsd/dot.gdbinit:
display/i $pc
define pglobal
print *(struct globaldata *)$sprg0
end
target sim -e chirp -r 33554432
set architecture powerpc:604
load
# psim-freebsd kernel.debug
GNU gdb 20011012 (MI_OUT)
Copyright 2001 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "--host=i386-portbld-freebsd5.0 --target=powerpc-freebsd-elf"...
Connected to the simulator.
The target architecture is assumed to be powerpc:604
chirp: note descriptor missing load-base
(gdb) b cpu_switch
Breakpoint 1 at 0x1d8d58
(gdb) run
Starting program: /usr/vsrc/sys/powerpc/compile/GENERIC/kernel.debug
Copyright (c) 1992-2001 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #0: Fri Oct 12 12:47:40 PDT 2001
root@netppc:/mnt/vsrc/sys/powerpc/compile/GENERIC
CPU: PowerPC Version 0 (Revision 0)
real memory = 33554432 (32768K bytes)
avail memory = 29794304 (29096K bytes)
Timecounter "powerpc" frequency 16666666 Hz
rn_init: radix functions require max_keylen be set
Mounting root from ufs:/dev/md0c
Breakpoint 1, 0x001d8d58 in cpu_switch ()
1: x/i $pc 0x1d8d58 <cpu_switch+24>: mfsprg r3,0
(gdb) where
#0 0x001d8d58 in cpu_switch ()
#1 0x0014baa4 in mi_switch () at ../../../kern/kern_synch.c:765
#2 0x0014af0c in msleep (ident=0x308cf8, mtx=0x0, priority=68,
wmesg=0x1e27f8 "sched", timo=1000) at ../../../kern/kern_synch.c:484
#3 0x001c0e58 in scheduler (dummy=0xcda) at ../../../vm/vm_glue.c:439
#4 0x0011d720 in mi_startup () at ../../../kern/init_main.c:209
#5 0x00114880 in kernel_text ()
(gdb)

22
emulators/psim-freebsd/files/README.patches Normal file
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@ -0,0 +1,22 @@
$FreeBSD$
Patch comments:
sim/ppc/emul_chirp.c:
Add a mapping for the kernel to obtain the mapping for the
OpenFirmware callback.
sim/ppc/hw_cpu.c:
Add the device type and timebase-frequency to the cpu device.
Add code to create an instance of the cpu for the translation of the
OpenFirmware callback.
sim/ppc/hw_init.c:
Allow the simulator to load a dynamically linked OEA environment.
sim/ppc/hw_tab.c:
Ignore warnings for the improper alignment of the htab. A better fix would be
to properly align the htab when the memory is allocated in the first place.
sim/ppc/ppc-spr-table:
Correct 2 of the SPR entries to allow "info all-registers" to work when the

7
emulators/psim-freebsd/files/dot.gdbinit Normal file
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@ -0,0 +1,7 @@
display/i $pc
define pglobal
print *(struct globaldata *)$sprg0
end
target sim -e chirp -r 33554432
set architecture powerpc:604
load

15
emulators/psim-freebsd/files/patch-emul_chirp.c Normal file
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@ -0,0 +1,15 @@
diff -r -u sim/ppc/emul_chirp.c /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/emul_chirp.c
--- sim/ppc/emul_chirp.c Thu Apr 15 18:35:09 1999
+++ /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/emul_chirp.c Sun Oct 7 16:16:57 2001
@@ -1884,6 +1884,11 @@
(unsigned long)chirp->sizeof_code);
tree_parse(node, "./wimg %d", 0x7);
tree_parse(node, "./pp %d", 0x2);
+ node = tree_parse(root, "/cpus/cpu@0");
+ tree_parse(node, "./translations 0x%lx 0x%lx 0x%0lx 0x%0lx 0x%0lx",
+ (unsigned long)chirp->code_va, (unsigned long)chirp->sizeof_code,
+ (unsigned long)chirp->code_ra, 0);
+ node = tree_parse(root, "/chosen/mmu */cpus/cpu@0");
}
/* map in the program to run */

63
emulators/psim-freebsd/files/patch-hw_cpu.c Normal file
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@ -0,0 +1,63 @@
diff -r -u sim/ppc/hw_cpu.c /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/hw_cpu.c
--- sim/ppc/hw_cpu.c Thu Apr 15 18:35:09 1999
+++ /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/hw_cpu.c Sun Oct 7 16:16:57 2001
@@ -110,6 +110,8 @@
{
hw_cpu_device *hw_cpu = (hw_cpu_device*)device_data(me);
/* populate the node with properties */
+ device_add_string_property(me, "device_type", "cpu");
+ device_add_integer_property(me, "timebase-frequency", 0x00fe502a);
/* clear our data */
memset(hw_cpu, 0x0, sizeof(hw_cpu_device));
hw_cpu->cpu_nr = device_find_integer_property(me, "cpu-nr");
@@ -148,6 +150,42 @@
}
}
+/* An instance of the cpu */
+
+typedef struct _hw_cpu_instance {
+ unsigned_word pos;
+ hw_cpu_device *cpu;
+ device *me;
+} hw_cpu_instance;
+
+static void
+hw_cpu_instance_delete(device_instance *instance)
+{
+ hw_cpu_instance *data = device_instance_data(instance);
+ zfree(data);
+}
+
+static const device_instance_callbacks hw_cpu_instance_callbacks = {
+ hw_cpu_instance_delete,
+ NULL,
+ NULL,
+ NULL,
+};
+
+static device_instance *
+hw_cpu_create_instance(device *me,
+ const char *path,
+ const char *args)
+{
+ hw_cpu_device *cpu = device_data(me);
+ hw_cpu_instance *data = ZALLOC(hw_cpu_instance);
+ data->cpu = cpu;
+ data->me = me;
+ return device_create_instance_from(me, NULL,
+ data,
+ path, args,
+ &hw_cpu_instance_callbacks);
+}
static device_callbacks const hw_cpu_callbacks = {
{ hw_cpu_init_address, }, /* init */
@@ -156,6 +194,7 @@
{ NULL, }, /* DMA */
{ hw_cpu_interrupt_event, NULL, hw_cpu_interrupt_ports }, /* interrupts */
{ NULL, NULL, },
+ hw_cpu_create_instance,
};
const device_descriptor hw_cpu_device_descriptor[] = {

13
emulators/psim-freebsd/files/patch-hw_init.c Normal file
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@ -0,0 +1,13 @@
diff -r -u sim/ppc/hw_init.c /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/hw_init.c
--- sim/ppc/hw_init.c Thu May 10 10:48:10 2001
+++ /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/hw_init.c Fri Oct 12 11:31:51 2001
@@ -350,7 +350,8 @@
));
/* If there is an .interp section, it means it needs a shared library interpreter. */
- if (strcmp(".interp", bfd_get_section_name(abfd, the_section)) == 0)
+ if (current_environment != OPERATING_ENVIRONMENT
+ && strcmp(".interp", bfd_get_section_name(abfd, the_section)) == 0)
error("Shared libraries are not yet supported.\n");
/* determine the devices access */

16
emulators/psim-freebsd/files/patch-hw_tab.c Normal file
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@ -0,0 +1,16 @@
diff -r -u sim/ppc/hw_htab.c /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/hw_htab.c
--- sim/ppc/hw_htab.c Thu Apr 15 18:35:09 1999
+++ /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/hw_htab.c Sun Oct 7 16:16:57 2001
@@ -224,10 +224,12 @@
}
*htaborg = htab_ra;
*htabmask = MASKED32(htab_nr_bytes - 1, 7, 31-6);
+#if 0
if ((htab_ra & INSERTED32(*htabmask, 7, 15)) != 0) {
device_error(parent, "htaborg 0x%lx not aligned to htabmask 0x%lx",
(unsigned long)*htaborg, (unsigned long)*htabmask);
}
+#endif
DTRACE(htab, ("htab - htaborg=0x%lx htabmask=0x%lx\n",
(unsigned long)*htaborg, (unsigned long)*htabmask));
}

17
emulators/psim-freebsd/files/patch-ppc-spr-table Normal file
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@ -0,0 +1,17 @@
diff -r -u sim/ppc/ppc-spr-table /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/ppc-spr-table
--- sim/ppc/ppc-spr-table Thu Apr 15 18:35:11 1999
+++ /local2/gcc/ppc/gdb+dejagnu-20011007/sim/ppc/ppc-spr-table Fri Oct 12 11:05:25 2001
@@ -69,6 +69,7 @@
MMCR1:956:0:0
PMC3:957:0:0
PMC4:958:0:0
+SDA:959:0:0
DMISS:976:0:0
DCMP:977:0:0
HASH1:978:0:0
@@ -85,4 +86,4 @@
THRM1:1020:0:0
THRM2:1021:0:0
THRM3:1022:0:0
-HID15:1023:0:0
+PIR:1023:0:0

1
emulators/psim-freebsd/pkg-comment Normal file
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@ -0,0 +1 @@
PowerPC simulator (PSIM) running in the GNU GDB 5

3
emulators/psim-freebsd/pkg-descr Normal file
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@ -0,0 +1,3 @@
PowerPC simulator (PSIM) running in the GNU GDB 5
WWW: http://sourceware.cygnus.com/psim/

4
emulators/psim-freebsd/pkg-plist Normal file
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@ -0,0 +1,4 @@
@comment $FreeBSD$
bin/psim-freebsd
share/examples/psim-freebsd/dot.gdbinit
%%PORTDOCS%%share/doc/psim-freebsd/HOW-TO