/* Generic remote debugging interface for simulators.
- Copyright 1993, 1994, 1996, 1997, 2000 Free Software Foundation, Inc.
+
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002 Free Software Foundation, Inc.
+
Contributed by Cygnus Support.
#include "defs.h"
#include "inferior.h"
-#include "gdb_wait.h"
#include "value.h"
#include "gdb_string.h"
#include <ctype.h>
#include "terminal.h"
#include "target.h"
#include "gdbcore.h"
-#include "callback.h"
-#include "remote-sim.h"
+#include "gdb/callback.h"
+#include "gdb/remote-sim.h"
#include "remote-utils.h"
#include "command.h"
+#include "regcache.h"
+#include "gdb_assert.h"
+#include "sim-regno.h"
/* Prototypes */
static void gdbsim_detach (char *args, int from_tty);
-static void gdbsim_resume (int pid, int step, enum target_signal siggnal);
+static void gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal);
-static int gdbsim_wait (int pid, struct target_waitstatus *status);
+static ptid_t gdbsim_wait (ptid_t ptid, struct target_waitstatus *status);
static void gdbsim_prepare_to_store (void);
-static int gdbsim_xfer_inferior_memory (CORE_ADDR memaddr,
- char *myaddr, int len,
- int write, struct target_ops *target);
+static int gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr,
+ int len, int write,
+ struct mem_attrib *attrib,
+ struct target_ops *target);
static void gdbsim_files_info (struct target_ops *target);
long l[2];
memcpy (l, buf, len);
printf_filtered ("\t0x%lx", l[0]);
- printf_filtered (len == 8 ? " 0x%x\n" : "\n", l[1]);
+ if (len == 8)
+ printf_filtered (" 0x%lx", l[1]);
+ printf_filtered ("\n");
}
else
{
}
}
+int
+one2one_register_sim_regno (int regnum)
+{
+ /* Only makes sense to supply raw registers. */
+ gdb_assert (regnum >= 0 && regnum < NUM_REGS);
+ return regnum;
+}
+
static void
gdbsim_fetch_register (int regno)
{
- static int warn_user = 1;
if (regno == -1)
{
for (regno = 0; regno < NUM_REGS; regno++)
gdbsim_fetch_register (regno);
+ return;
}
- else if (REGISTER_NAME (regno) != NULL
- && *REGISTER_NAME (regno) != '\0')
+
+ switch (REGISTER_SIM_REGNO (regno))
{
- char buf[MAX_REGISTER_RAW_SIZE];
- int nr_bytes;
- if (REGISTER_SIM_REGNO (regno) >= 0)
+ case LEGACY_SIM_REGNO_IGNORE:
+ break;
+ case SIM_REGNO_DOES_NOT_EXIST:
+ {
+ /* For moment treat a `does not exist' register the same way
+ as an ``unavailable'' register. */
+ char *buf = alloca (MAX_REGISTER_RAW_SIZE);
+ int nr_bytes;
+ memset (buf, 0, MAX_REGISTER_RAW_SIZE);
+ supply_register (regno, buf);
+ set_register_cached (regno, -1);
+ break;
+ }
+ default:
+ {
+ static int warn_user = 1;
+ char *buf = alloca (MAX_REGISTER_RAW_SIZE);
+ int nr_bytes;
+ gdb_assert (regno >= 0 && regno < NUM_REGS);
+ memset (buf, 0, MAX_REGISTER_RAW_SIZE);
nr_bytes = sim_fetch_register (gdbsim_desc,
REGISTER_SIM_REGNO (regno),
buf, REGISTER_RAW_SIZE (regno));
- else
- nr_bytes = 0;
- if (nr_bytes == 0)
- /* register not applicable, supply zero's */
- memset (buf, 0, MAX_REGISTER_RAW_SIZE);
- else if (nr_bytes > 0 && nr_bytes != REGISTER_RAW_SIZE (regno)
- && warn_user)
- {
- fprintf_unfiltered (gdb_stderr,
- "Size of register %s (%d/%d) incorrect (%d instead of %d))",
- REGISTER_NAME (regno),
- regno, REGISTER_SIM_REGNO (regno),
- nr_bytes, REGISTER_RAW_SIZE (regno));
- warn_user = 0;
- }
- supply_register (regno, buf);
- if (sr_get_debug ())
- {
- printf_filtered ("gdbsim_fetch_register: %d", regno);
- /* FIXME: We could print something more intelligible. */
- dump_mem (buf, REGISTER_RAW_SIZE (regno));
- }
+ if (nr_bytes > 0 && nr_bytes != REGISTER_RAW_SIZE (regno) && warn_user)
+ {
+ fprintf_unfiltered (gdb_stderr,
+ "Size of register %s (%d/%d) incorrect (%d instead of %d))",
+ REGISTER_NAME (regno),
+ regno, REGISTER_SIM_REGNO (regno),
+ nr_bytes, REGISTER_RAW_SIZE (regno));
+ warn_user = 0;
+ }
+ /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
+ indicatingthat GDB and the SIM have different ideas about
+ which registers are fetchable. */
+ /* Else if (nr_bytes < 0): an old simulator, that doesn't
+ think to return the register size. Just assume all is ok. */
+ supply_register (regno, buf);
+ if (sr_get_debug ())
+ {
+ printf_filtered ("gdbsim_fetch_register: %d", regno);
+ /* FIXME: We could print something more intelligible. */
+ dump_mem (buf, REGISTER_RAW_SIZE (regno));
+ }
+ break;
+ }
}
}
{
for (regno = 0; regno < NUM_REGS; regno++)
gdbsim_store_register (regno);
+ return;
}
- else if (REGISTER_NAME (regno) != NULL
- && *REGISTER_NAME (regno) != '\0'
- && REGISTER_SIM_REGNO (regno) >= 0)
+ else if (REGISTER_SIM_REGNO (regno) >= 0)
{
- char tmp[MAX_REGISTER_RAW_SIZE];
+ char *tmp = alloca (max_register_size (current_gdbarch));
int nr_bytes;
- read_register_gen (regno, tmp);
+ deprecated_read_register_gen (regno, tmp);
nr_bytes = sim_store_register (gdbsim_desc,
REGISTER_SIM_REGNO (regno),
tmp, REGISTER_RAW_SIZE (regno));
if (nr_bytes > 0 && nr_bytes != REGISTER_RAW_SIZE (regno))
- internal_error ("Register size different to expected");
+ internal_error (__FILE__, __LINE__,
+ "Register size different to expected");
+ /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
+ indicatingthat GDB and the SIM have different ideas about
+ which registers are fetchable. */
if (sr_get_debug ())
{
printf_filtered ("gdbsim_store_register: %d", regno);
/* There is no need to `kill' running simulator - the simulator is
not running */
- inferior_pid = 0;
+ inferior_ptid = null_ptid;
}
/* Load an executable file into the target process. This is expected to
if (sr_get_debug ())
printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);
- inferior_pid = 0;
+ inferior_ptid = null_ptid;
/* FIXME: We will print two messages on error.
Need error to either not print anything if passed NULL or need
}
-/* Start an inferior process and set inferior_pid to its pid.
+/* Start an inferior process and set inferior_ptid to its pid.
EXEC_FILE is the file to run.
ARGS is a string containing the arguments to the program.
ENV is the environment vector to pass. Errors reported with error().
argv = NULL;
sim_create_inferior (gdbsim_desc, exec_bfd, argv, env);
- inferior_pid = 42;
+ inferior_ptid = pid_to_ptid (42);
insert_breakpoints (); /* Needed to get correct instruction in cache */
clear_proceed_status ();
strcpy (arg_buf, "gdbsim"); /* 7 */
/* Specify the byte order for the target when it is both selectable
and explicitly specified by the user (not auto detected). */
- if (TARGET_BYTE_ORDER_SELECTABLE_P
- && !TARGET_BYTE_ORDER_AUTO)
+ if (!TARGET_BYTE_ORDER_AUTO)
{
switch (TARGET_BYTE_ORDER)
{
- case BIG_ENDIAN:
+ case BFD_ENDIAN_BIG:
strcat (arg_buf, " -E big");
break;
- case LITTLE_ENDIAN:
+ case BFD_ENDIAN_LITTLE:
strcat (arg_buf, " -E little");
break;
default:
- internal_error ("Value of TARGET_BYTE_ORDER unknown");
+ internal_error (__FILE__, __LINE__,
+ "Value of TARGET_BYTE_ORDER unknown");
}
}
/* Specify the architecture of the target when it has been
static int resume_step;
static void
-gdbsim_resume (int pid, int step, enum target_signal siggnal)
+gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
- if (inferior_pid != 42)
+ if (PIDGET (inferior_ptid) != 42)
error ("The program is not being run.");
if (sr_get_debug ())
if (ui_loop_hook != NULL)
ui_loop_hook (0);
- notice_quit ();
if (quit_flag) /* gdb's idea of quit */
{
quit_flag = 0; /* we've stolen it */
gdbsim_stop ();
}
-static int
-gdbsim_wait (int pid, struct target_waitstatus *status)
+static ptid_t
+gdbsim_wait (ptid_t ptid, struct target_waitstatus *status)
{
static RETSIGTYPE (*prev_sigint) ();
int sigrc = 0;
break;
}
- return inferior_pid;
+ return inferior_ptid;
}
/* Get ready to modify the registers array. On machines which store
/* Do nothing, since we can store individual regs */
}
+/* Transfer LEN bytes between GDB address MYADDR and target address
+ MEMADDR. If WRITE is non-zero, transfer them to the target,
+ otherwise transfer them from the target. TARGET is unused.
+
+ Returns the number of bytes transferred. */
+
static int
-gdbsim_xfer_inferior_memory (memaddr, myaddr, len, write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *target; /* ignored */
+gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
+ int write, struct mem_attrib *attrib,
+ struct target_ops *target)
{
if (!program_loaded)
error ("No program loaded.");
static int
gdbsim_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
{
-#ifdef SIM_HAS_BREAKPOINTS
- SIM_RC retcode;
-
- retcode = sim_set_breakpoint (gdbsim_desc, addr);
-
- switch (retcode)
- {
- case SIM_RC_OK:
- return 0;
- case SIM_RC_INSUFFICIENT_RESOURCES:
- return ENOMEM;
- default:
- return EIO;
- }
-#else
return memory_insert_breakpoint (addr, contents_cache);
-#endif
}
static int
gdbsim_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
{
-#ifdef SIM_HAS_BREAKPOINTS
- SIM_RC retcode;
-
- retcode = sim_clear_breakpoint (gdbsim_desc, addr);
-
- switch (retcode)
- {
- case SIM_RC_OK:
- case SIM_RC_UNKNOWN_BREAKPOINT:
- return 0;
- case SIM_RC_INSUFFICIENT_RESOURCES:
- return ENOMEM;
- default:
- return EIO;
- }
-#else
return memory_remove_breakpoint (addr, contents_cache);
-#endif
}
/* Pass the command argument through to the simulator verbatim. The
gdbsim_ops.to_doc = "Use the compiled-in simulator.";
gdbsim_ops.to_open = gdbsim_open;
gdbsim_ops.to_close = gdbsim_close;
- gdbsim_ops.to_attach = NULL;
- gdbsim_ops.to_post_attach = NULL;
- gdbsim_ops.to_require_attach = NULL;
gdbsim_ops.to_detach = gdbsim_detach;
- gdbsim_ops.to_require_detach = NULL;
gdbsim_ops.to_resume = gdbsim_resume;
gdbsim_ops.to_wait = gdbsim_wait;
- gdbsim_ops.to_post_wait = NULL;
gdbsim_ops.to_fetch_registers = gdbsim_fetch_register;
gdbsim_ops.to_store_registers = gdbsim_store_register;
gdbsim_ops.to_prepare_to_store = gdbsim_prepare_to_store;
gdbsim_ops.to_files_info = gdbsim_files_info;
gdbsim_ops.to_insert_breakpoint = gdbsim_insert_breakpoint;
gdbsim_ops.to_remove_breakpoint = gdbsim_remove_breakpoint;
- gdbsim_ops.to_terminal_init = NULL;
- gdbsim_ops.to_terminal_inferior = NULL;
- gdbsim_ops.to_terminal_ours_for_output = NULL;
- gdbsim_ops.to_terminal_ours = NULL;
- gdbsim_ops.to_terminal_info = NULL;
gdbsim_ops.to_kill = gdbsim_kill;
gdbsim_ops.to_load = gdbsim_load;
- gdbsim_ops.to_lookup_symbol = NULL;
gdbsim_ops.to_create_inferior = gdbsim_create_inferior;
- gdbsim_ops.to_post_startup_inferior = NULL;
- gdbsim_ops.to_acknowledge_created_inferior = NULL;
- gdbsim_ops.to_clone_and_follow_inferior = NULL;
- gdbsim_ops.to_post_follow_inferior_by_clone = NULL;
- gdbsim_ops.to_insert_fork_catchpoint = NULL;
- gdbsim_ops.to_remove_fork_catchpoint = NULL;
- gdbsim_ops.to_insert_vfork_catchpoint = NULL;
- gdbsim_ops.to_remove_vfork_catchpoint = NULL;
- gdbsim_ops.to_has_forked = NULL;
- gdbsim_ops.to_has_vforked = NULL;
- gdbsim_ops.to_can_follow_vfork_prior_to_exec = NULL;
- gdbsim_ops.to_post_follow_vfork = NULL;
- gdbsim_ops.to_insert_exec_catchpoint = NULL;
- gdbsim_ops.to_remove_exec_catchpoint = NULL;
- gdbsim_ops.to_has_execd = NULL;
- gdbsim_ops.to_reported_exec_events_per_exec_call = NULL;
- gdbsim_ops.to_has_exited = NULL;
gdbsim_ops.to_mourn_inferior = gdbsim_mourn_inferior;
- gdbsim_ops.to_can_run = 0;
- gdbsim_ops.to_notice_signals = 0;
- gdbsim_ops.to_thread_alive = 0;
gdbsim_ops.to_stop = gdbsim_stop;
- gdbsim_ops.to_pid_to_exec_file = NULL;
- gdbsim_ops.to_core_file_to_sym_file = NULL;
gdbsim_ops.to_stratum = process_stratum;
- gdbsim_ops.DONT_USE = NULL;
gdbsim_ops.to_has_all_memory = 1;
gdbsim_ops.to_has_memory = 1;
gdbsim_ops.to_has_stack = 1;
gdbsim_ops.to_has_registers = 1;
gdbsim_ops.to_has_execution = 1;
- gdbsim_ops.to_sections = NULL;
- gdbsim_ops.to_sections_end = NULL;
gdbsim_ops.to_magic = OPS_MAGIC;
#ifdef TARGET_REDEFINE_DEFAULT_OPS
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