/* This file is part of the program psim.
- Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+ Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- ----
-
- Code to output system call traces Copyright (C) 1991 Gordon Irlam.
- All rights reserved.
-
- This tool is part of the Spa(7) package. The Spa(7) package
- may be redistributed and/or modified under the terms of the
- GNU General Public License Version 2 (GPL(7)) as published
- by the Free Software Foundation.
-
*/
#endif
-INLINE_EMUL_GENERIC void
-emul_enter_call(emulation *emul,
- int call,
- int arg0,
- cpu *processor,
- unsigned_word cia)
+STATIC_INLINE_EMUL_GENERIC void
+emul_syscall_enter(emul_syscall *emul,
+ int call,
+ int arg0,
+ cpu *processor,
+ unsigned_word cia)
{
- printf_filtered("%d:0x%x:%s(",
+ printf_filtered("%d:0x%lx:%s(",
cpu_nr(processor) + 1,
- cia,
- emul->call_descriptor[call].name);
+ (long)cia,
+ emul->syscall_descriptor[call].name);
}
-INLINE_EMUL_GENERIC void
-emul_exit_call(emulation *emul,
- int call,
- int arg0,
- cpu *processor,
- unsigned_word cia)
+STATIC_INLINE_EMUL_GENERIC void
+emul_syscall_exit(emul_syscall *emul,
+ int call,
+ int arg0,
+ cpu *processor,
+ unsigned_word cia)
{
int status = cpu_registers(processor)->gpr[3];
int error = cpu_registers(processor)->gpr[0];
printf_filtered(")=%d", status);
if (error > 0 && error < emul->nr_error_names)
- printf_filtered("[%s]",
- emul->error_names[cpu_registers(processor)->gpr[0]]);
+ printf_filtered("[%s]", emul->error_names[error]);
printf_filtered("\n");
}
if (addr == 0)
return NULL;
while (1) {
- if (vm_data_map_read_buffer(cpu_data_map(processor),
- &dest[nr_moved],
- addr + nr_moved,
- sizeof(dest[nr_moved]))
- != sizeof(dest[nr_moved]))
- return NULL;
+ dest[nr_moved] = vm_data_map_read_1(cpu_data_map(processor),
+ addr + nr_moved,
+ processor, cia);
if (dest[nr_moved] == '\0' || nr_moved >= nr_bytes)
break;
nr_moved++;
int status,
int errno)
{
- cpu_registers(processor)->gpr[3] = status;
- if (status < 0)
- cpu_registers(processor)->gpr[0] = errno;
- else
- cpu_registers(processor)->gpr[0] = 0;
+ if (status == -1 && errno != 0) {
+ cpu_registers(processor)->gpr[3] = errno;
+ CR_SET(0, cr_i_summary_overflow);
+ }
+ else {
+ cpu_registers(processor)->gpr[3] = status;
+ CR_SET(0, 0);
+ }
+}
+
+
+INLINE_EMUL_GENERIC void
+emul_write2_status(cpu *processor,
+ int status1,
+ int status2,
+ int errno)
+{
+ if (status1 == -1 && errno != 0) {
+ cpu_registers(processor)->gpr[3] = errno;
+ CR_SET(0, cr_i_summary_overflow);
+ }
+ else {
+ cpu_registers(processor)->gpr[3] = status1;
+ cpu_registers(processor)->gpr[4] = status2;
+ CR_SET(0, 0);
+ }
+}
+
+
+INLINE_EMUL_GENERIC unsigned_word
+emul_read_word(unsigned_word addr,
+ cpu *processor,
+ unsigned_word cia)
+{
+ return vm_data_map_read_word(cpu_data_map(processor),
+ addr,
+ processor, cia);
}
cpu *processor,
unsigned_word cia)
{
- int nr_moved;
- H2T(buf);
- nr_moved = vm_data_map_write_buffer(cpu_data_map(processor),
- &buf,
- addr,
- sizeof(buf),
- 0/*violate_ro*/);
- if (nr_moved != sizeof(buf)) {
- printf_filtered("emul_write_word() write failed, %d out of %d written\n",
- nr_moved, sizeof(buf));
- cpu_halt(processor, cia, was_exited, 14/*EFAULT*/);
- }
+ vm_data_map_write_word(cpu_data_map(processor),
+ addr,
+ buf,
+ processor, cia);
}
cpu *processor,
unsigned_word cia)
{
- int nr_moved = vm_data_map_write_buffer(cpu_data_map(processor),
- source,
- addr,
- nr_bytes,
- 0/*violate_ro*/);
- if (nr_moved != nr_bytes) {
- printf_filtered("emul_write_buffer() write failed %d out of %d written\n",
- nr_moved, nr_bytes);
- cpu_halt(processor, cia, was_exited, 14/*EFAULT*/);
+ int nr_moved;
+ for (nr_moved = 0; nr_moved < nr_bytes; nr_moved++) {
+ vm_data_map_write_1(cpu_data_map(processor),
+ addr + nr_moved,
+ ((const char*)source)[nr_moved],
+ processor, cia);
}
}
cpu *processor,
unsigned_word cia)
{
- int nr_moved = vm_data_map_read_buffer(cpu_data_map(processor),
- dest,
- addr,
- nr_bytes);
- if (nr_moved != nr_bytes) {
- printf_filtered("emul_read_buffer() read failed %d out of %d read\n",
- nr_moved, nr_bytes);
- cpu_halt(processor, cia, was_exited, 14/*EFAULT*/);
+ int nr_moved;
+ for (nr_moved = 0; nr_moved < nr_bytes; nr_moved++) {
+ ((char*)dest)[nr_moved] = vm_data_map_read_1(cpu_data_map(processor),
+ addr + nr_moved,
+ processor, cia);
}
}
INLINE_EMUL_GENERIC void
-emul_do_call(emulation *emul,
- unsigned call,
- const int arg0,
- cpu *processor,
- unsigned_word cia)
+emul_do_system_call(os_emul_data *emul_data,
+ emul_syscall *emul,
+ unsigned call,
+ const int arg0,
+ cpu *processor,
+ unsigned_word cia)
{
- emul_call_handler *handler = NULL;
+ emul_syscall_handler *handler = NULL;
if (call >= emul->nr_system_calls)
error("do_call() os_emul call %d out-of-range\n", call);
- handler = emul->call_descriptor[call].handler;
- if (handler == NULL)
- error("do_call() unimplemented call %d\n", call);
+ handler = emul->syscall_descriptor[call].handler;
+ if (handler == NULL) {
+ if (emul->syscall_descriptor[call].name) {
+ error("do_call() unimplemented call %s\n", emul->syscall_descriptor[call].name);
+ } else {
+ error("do_call() unimplemented call %d\n", call);
+ }
+ }
+
+ if (WITH_TRACE && ppc_trace[trace_os_emul])
+ emul_syscall_enter(emul, call, arg0, processor, cia);
- ENTER_CALL;
cpu_registers(processor)->gpr[0] = 0; /* default success */
- handler(emul, call, arg0, processor, cia);
- EXIT_CALL;
+ handler(emul_data, call, arg0, processor, cia);
+
+ if (WITH_TRACE && ppc_trace[trace_os_emul])
+ emul_syscall_exit(emul, call, arg0, processor, cia);
+}
+
+
+/* default size for the first bank of memory */
+
+#ifndef OEA_MEMORY_SIZE
+#define OEA_MEMORY_SIZE 0x100000
+#endif
+
+
+/* Add options to the device tree */
+
+INLINE_EMUL_GENERIC void
+emul_add_tree_options(device *tree,
+ bfd *image,
+ const char *emul,
+ const char *env,
+ int oea_interrupt_prefix)
+{
+ int little_endian = 0;
+
+ /* sort out little endian */
+ if (device_find_property(tree, "/options/little-endian?"))
+ little_endian = device_find_boolean_property(tree, "/options/little-endian?");
+ else {
+#ifdef bfd_little_endian /* new bfd */
+ little_endian = (image != NULL && bfd_little_endian(image));
+#else
+ little_endian = (image != NULL &&
+ !image->xvec->byteorder_big_p);
+#endif
+ device_tree_add_parsed(tree, "/options/little-endian? %s",
+ little_endian ? "true" : "false");
+ }
+
+ /* misc other stuff */
+ device_tree_add_parsed(tree, "/openprom/options/oea-memory-size 0x%x",
+ OEA_MEMORY_SIZE);
+ device_tree_add_parsed(tree, "/openprom/options/oea-interrupt-prefix %d",
+ oea_interrupt_prefix);
+ device_tree_add_parsed(tree, "/openprom/options/smp 1");
+ device_tree_add_parsed(tree, "/openprom/options/env %s", env);
+ device_tree_add_parsed(tree, "/openprom/options/os-emul %s", emul);
+ device_tree_add_parsed(tree, "/openprom/options/strict-alignment? %s",
+ ((WITH_ALIGNMENT == 0 && little_endian)
+ || (WITH_ALIGNMENT == STRICT_ALIGNMENT))
+ ? "true" : "false");
+ device_tree_add_parsed(tree, "/openprom/options/floating-point? %s",
+ WITH_FLOATING_POINT ? "true" : "false");
+ device_tree_add_parsed(tree, "/openprom/options/use-stdio? %s",
+ WITH_STDIO == DO_USE_STDIO ? "true" : "false");
+ device_tree_add_parsed(tree, "/openprom/options/model \"%s",
+ model_name[WITH_DEFAULT_MODEL]);
+ device_tree_add_parsed(tree, "/openprom/options/model-issue %d",
+ MODEL_ISSUE_IGNORE);
+
+ /* useful options */
+ /* FIXME - need to check the OpenBoot powerpc bindings to see if
+ this is still used and if so what it should be */
+ device_tree_add_parsed(tree, "/options/load-base 0x80000");
}
+INLINE_EMUL_GENERIC void
+emul_add_tree_hardware(device *root)
+{
+ int i;
+ int nr_cpus = device_find_integer_property(root, "/openprom/options/smp");
+
+ /* sanity check the number of processors */
+ if (nr_cpus > MAX_NR_PROCESSORS)
+ error("Specified number of processors (%d) exceeds the number configured (%d).\n",
+ nr_cpus, MAX_NR_PROCESSORS);
+
+ /* add some memory */
+ if (device_tree_find_device(root, "/memory") == NULL) {
+ unsigned_word memory_size =
+ device_find_integer_property(root, "/openprom/options/oea-memory-size");
+ device_tree_add_parsed(root, "/memory@0/reg { 0x0 0x%lx",
+ (unsigned long)memory_size);
+ /* what about allocated? */
+ }
+
+ /* our processors */
+ for (i = 0; i < nr_cpus; i++) {
+ device_tree_add_parsed(root, "/cpus/cpu@%d/cpu-nr %d", i, i);
+ }
+
+ /* a fake eeprom - need to be able to write to it */
+ device_tree_add_parsed(root, "/openprom/memory@0xfff00000/reg { 0xfff00000 0x3000");
+
+
+ /* A local bus containing basic devices */
+ device_tree_add_parsed(root, "/iobus@0xf0000000/reg { 0xf0000000 0x0f000000");
+
+ /* NVRAM with clock */
+ device_tree_add_parsed(root, "/iobus/nvram@0x0/reg { 0 0x1000");
+ device_tree_add_parsed(root, "/iobus/nvram/timezone 0");
+
+ /* the debugging pal. Wire interrupts up directly */
+ device_tree_add_parsed(root, "/iobus/pal@0x0x1000/reg { 0x1000 32");
+ for (i = 0; i < nr_cpus; i++) {
+ device_tree_add_parsed(root, "/iobus/pal > int%d int /cpus/cpu@%d", i, i);
+ }
+
+ /* a disk containing zero's */
+ device_tree_add_parsed(root, "/iobus/disk@0x2000/reg { 0x2000 0x1000");
+ device_tree_add_parsed(root, "/iobus/disk/file \"/dev/zero");
+
+ /* chosen etc */
+ device_tree_add_parsed(root, "/chosen/stdin */iobus/pal");
+ device_tree_add_parsed(root, "/chosen/stdout !/chosen/stdin");
+ device_tree_add_parsed(root, "/chosen/memory */memory");
+ device_tree_add_parsed(root, "/chosen/disk */iobus/disk");
+}
-#endif /* _SYSTEM_C_ */
+#endif /* _EMUL_GENERIC_C_ */
projects / binutils-gdb.git / blobdiff