diff options
Diffstat (limited to 'sim/ppc/sim_calls.c')
-rw-r--r-- | sim/ppc/sim_calls.c | 401 |
1 files changed, 0 insertions, 401 deletions
diff --git a/sim/ppc/sim_calls.c b/sim/ppc/sim_calls.c deleted file mode 100644 index 4d73291..0000000 --- a/sim/ppc/sim_calls.c +++ /dev/null @@ -1,401 +0,0 @@ -/* This file is part of the program psim. - - 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 - the Free Software Foundation; either version 2 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, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - */ - - -#include <signal.h> /* FIXME - should be machine dependant version */ -#include <stdarg.h> -#include <ctype.h> - -#include "psim.h" -#include "options.h" - -#undef printf_filtered /* blow away the mapping */ - -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif - -#ifdef HAVE_STRING_H -#include <string.h> -#else -#ifdef HAVE_STRINGS_H -#include <strings.h> -#endif -#endif - -#include "defs.h" -#include "bfd.h" -#include "callback.h" -#include "remote-sim.h" - - -/* Structures used by the simulator, for gdb just have static structures */ - -static psim *simulator; -static device *root_device; -static const char *register_names[] = REGISTER_NAMES; -static host_callback *callbacks; - -SIM_DESC -sim_open (SIM_OPEN_KIND kind, - host_callback *callback, - struct _bfd *abfd, - char **argv) -{ - callbacks = callback; - - /* Note: The simulation is not created by sim_open() because - complete information is not yet available */ - /* trace the call */ - TRACE(trace_gdb, ("sim_open called\n")); - - if (root_device != NULL) - sim_io_printf_filtered("Warning - re-open of simulator leaks memory\n"); - root_device = psim_tree(); - simulator = NULL; - - psim_options(root_device, argv + 1); - - if (ppc_trace[trace_opts]) - print_options (); - - /* fudge our descriptor for now */ - return (SIM_DESC) 1; -} - - -void -sim_close (SIM_DESC sd, int quitting) -{ - TRACE(trace_gdb, ("sim_close(quitting=%d) called\n", quitting)); - if (ppc_trace[trace_print_info] && simulator != NULL) - psim_print_info (simulator, ppc_trace[trace_print_info]); -} - - -SIM_RC -sim_load (SIM_DESC sd, char *prog, bfd *abfd, int from_tty) -{ - char **argv; - TRACE(trace_gdb, ("sim_load(prog=%s, from_tty=%d) called\n", - prog, from_tty)); - ASSERT(prog != NULL); - - /* parse the arguments, assume that the file is argument 0 */ - argv = buildargv(prog); - ASSERT(argv != NULL && argv[0] != NULL); - - /* create the simulator */ - TRACE(trace_gdb, ("sim_load() - first time, create the simulator\n")); - simulator = psim_create(argv[0], root_device); - - /* bring in all the data section */ - psim_init(simulator); - - /* get the start address */ - if (abfd == NULL) - { - abfd = bfd_openr (argv[0], 0); - if (abfd == NULL) - error ("psim: can't open \"%s\": %s\n", - argv[0], bfd_errmsg (bfd_get_error ())); - if (!bfd_check_format (abfd, bfd_object)) - { - const char *errmsg = bfd_errmsg (bfd_get_error ()); - bfd_close (abfd); - error ("psim: \"%s\" is not an object file: %s\n", - argv[0], errmsg); - } - bfd_close (abfd); - } - - /* release the arguments */ - freeargv(argv); - - return SIM_RC_OK; -} - - -int -sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length) -{ - int result = psim_read_memory(simulator, MAX_NR_PROCESSORS, - buf, mem, length); - TRACE(trace_gdb, ("sim_read(mem=0x%lx, buf=0x%lx, length=%d) = %d\n", - (long)mem, (long)buf, length, result)); - return result; -} - - -int -sim_write (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length) -{ - int result = psim_write_memory(simulator, MAX_NR_PROCESSORS, - buf, mem, length, - 1/*violate_ro*/); - TRACE(trace_gdb, ("sim_write(mem=0x%lx, buf=0x%lx, length=%d) = %d\n", - (long)mem, (long)buf, length, result)); - return result; -} - - -void -sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf) -{ - if (simulator == NULL) { - return; - } - TRACE(trace_gdb, ("sim_fetch_register(regno=%d(%s), buf=0x%lx)\n", - regno, register_names[regno], (long)buf)); - psim_read_register(simulator, MAX_NR_PROCESSORS, - buf, register_names[regno], - raw_transfer); -} - - -void -sim_store_register (SIM_DESC sd, int regno, unsigned char *buf) -{ - if (simulator == NULL) - return; - TRACE(trace_gdb, ("sim_store_register(regno=%d(%s), buf=0x%lx)\n", - regno, register_names[regno], (long)buf)); - psim_write_register(simulator, MAX_NR_PROCESSORS, - buf, register_names[regno], - raw_transfer); -} - - -void -sim_info (SIM_DESC sd, int verbose) -{ - TRACE(trace_gdb, ("sim_info(verbose=%d) called\n", verbose)); - psim_print_info (simulator, verbose); -} - - -SIM_RC -sim_create_inferior (SIM_DESC sd, - struct _bfd *abfd, - char **argv, - char **envp) -{ - unsigned_word entry_point; - TRACE(trace_gdb, ("sim_create_inferior(start_address=0x%x, ...)\n", - entry_point)); - - if (simulator == NULL) - error ("No program loaded"); - - if (abfd != NULL) - entry_point = bfd_get_start_address (abfd); - else - entry_point = 0xfff00000; /* ??? */ - - psim_init(simulator); - psim_stack(simulator, argv, envp); - - psim_write_register(simulator, -1 /* all start at same PC */, - &entry_point, "pc", cooked_transfer); - return SIM_RC_OK; -} - - -void -sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc) -{ - psim_status status = psim_get_status(simulator); - - switch (status.reason) { - case was_continuing: - *reason = sim_stopped; - if (status.signal == 0) - *sigrc = SIGTRAP; - else - *sigrc = status.signal; - break; - case was_trap: - *reason = sim_stopped; - *sigrc = SIGTRAP; - break; - case was_exited: - *reason = sim_exited; - *sigrc = status.signal; - break; - case was_signalled: - *reason = sim_signalled; - *sigrc = status.signal; - break; - } - - TRACE(trace_gdb, ("sim_stop_reason(reason=0x%lx(%ld), sigrc=0x%lx(%ld))\n", - (long)reason, (long)*reason, (long)sigrc, (long)*sigrc)); -} - - - -/* Run (or resume) the program. */ - -int -sim_stop (SIM_DESC sd) -{ - psim_stop (simulator); - return 1; -} - -void -sim_resume (SIM_DESC sd, int step, int siggnal) -{ - TRACE(trace_gdb, ("sim_resume(step=%d, siggnal=%d)\n", - step, siggnal)); - - if (step) - { - psim_step (simulator); - } - else - { - psim_run (simulator); - } -} - -void -sim_do_command (SIM_DESC sd, char *cmd) -{ - TRACE(trace_gdb, ("sim_do_commands(cmd=%s) called\n", - cmd ? cmd : "(null)")); - if (cmd != NULL) { - char **argv = buildargv(cmd); - psim_command(root_device, argv); - freeargv(argv); - } -} - - -/* Map simulator IO operations onto the corresponding GDB I/O - functions. - - NB: Only a limited subset of operations are mapped across. More - advanced operations (such as dup or write) must either be mapped to - one of the below calls or handled internally */ - -int -sim_io_read_stdin(char *buf, - int sizeof_buf) -{ - switch (CURRENT_STDIO) { - case DO_USE_STDIO: - return callbacks->read_stdin(callbacks, buf, sizeof_buf); - break; - case DONT_USE_STDIO: - return callbacks->read(callbacks, 0, buf, sizeof_buf); - break; - default: - error("sim_io_read_stdin: unaccounted switch\n"); - break; - } - return 0; -} - -int -sim_io_write_stdout(const char *buf, - int sizeof_buf) -{ - switch (CURRENT_STDIO) { - case DO_USE_STDIO: - return callbacks->write_stdout(callbacks, buf, sizeof_buf); - break; - case DONT_USE_STDIO: - return callbacks->write(callbacks, 1, buf, sizeof_buf); - break; - default: - error("sim_io_write_stdout: unaccounted switch\n"); - break; - } - return 0; -} - -int -sim_io_write_stderr(const char *buf, - int sizeof_buf) -{ - switch (CURRENT_STDIO) { - case DO_USE_STDIO: - /* NB: I think there should be an explicit write_stderr callback */ - return callbacks->write(callbacks, 3, buf, sizeof_buf); - break; - case DONT_USE_STDIO: - return callbacks->write(callbacks, 3, buf, sizeof_buf); - break; - default: - error("sim_io_write_stderr: unaccounted switch\n"); - break; - } - return 0; -} - - -void -sim_io_printf_filtered(const char *fmt, - ...) -{ - char message[1024]; - va_list ap; - /* format the message */ - va_start(ap, fmt); - vsprintf(message, fmt, ap); - va_end(ap); - /* sanity check */ - if (strlen(message) >= sizeof(message)) - error("sim_io_printf_filtered: buffer overflow\n"); - callbacks->printf_filtered(callbacks, "%s", message); -} - -void -sim_io_flush_stdoutput(void) -{ - switch (CURRENT_STDIO) { - case DO_USE_STDIO: - callbacks->flush_stdout (callbacks); - break; - case DONT_USE_STDIO: - break; - default: - error("sim_io_read_stdin: unaccounted switch\n"); - break; - } -} - -/****/ - -void * -zalloc(long size) -{ - void *memory = (void*)xmalloc(size); - if (memory == NULL) - error("xmalloc failed\n"); - memset(memory, 0, size); - return memory; -} - -void zfree(void *data) -{ - free(NULL, data); -} |