#include "gdb_stat.h"
#include "regcache.h"
#include <ctype.h>
+#include "mips-tdep.h"
\f
/* Breakpoint types. Values 0, 1, and 2 must agree with the watch
return mips_expect_timeout (string, remote_timeout);
}
-/* Read the required number of characters into the given buffer (which
- is assumed to be large enough). The only failure is a timeout. */
-static int
-mips_getstring (char *string, int n)
-{
- char *p = string;
- int c;
-
- immediate_quit++;
- while (n > 0)
- {
- c = serial_readchar (mips_desc, remote_timeout);
-
- if (c == SERIAL_TIMEOUT)
- {
- fprintf_unfiltered (gdb_stderr,
- "Failed to read %d characters from target (TIMEOUT)\n", n);
- immediate_quit--;
- return 0;
- }
-
- *p++ = c;
- n--;
- }
-
- immediate_quit--;
- return 1;
-}
-
/* Read a character from the remote, aborting on error. Returns
SERIAL_TIMEOUT on timeout (since that's what serial_readchar()
returns). FIXME: If we see the string mips_monitor_prompt from the
the request itself succeeds or fails. */
mips_request ('r', 0, 0, &err, mips_receive_wait, NULL);
- /* FIXME: cagney/2002-11-29: Force the update of selected frame.
- This shouldn't be necessary, only many many places still refer to
- selected_frame directly (instead of using get_selected_frame(). */
- get_selected_frame (); /* Hack!!! */
}
/* Open a connection to the remote board. */
/* FIXME: Should we call start_remote here? */
/* Try to figure out the processor model if possible. */
- ptype = mips_read_processor_type ();
- if (ptype)
- mips_set_processor_type_command (xstrdup (ptype), 0);
+ deprecated_mips_set_processor_regs_hack ();
/* This is really the job of start_remote however, that makes an
assumption that the target is about to print out a status message
{
if (regno < 32)
return regno;
- if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
- return regno - FP0_REGNUM + 32;
- switch (regno)
- {
- case PC_REGNUM:
- return REGNO_OFFSET + 0;
- case CAUSE_REGNUM:
- return REGNO_OFFSET + 1;
- case HI_REGNUM:
- return REGNO_OFFSET + 2;
- case LO_REGNUM:
- return REGNO_OFFSET + 3;
- case FCRCS_REGNUM:
- return REGNO_OFFSET + 4;
- case FCRIR_REGNUM:
- return REGNO_OFFSET + 5;
- default:
- /* FIXME: Is there a way to get the status register? */
- return 0;
- }
+ if (regno >= mips_regnum (current_gdbarch)->fp0
+ && regno < mips_regnum (current_gdbarch)->fp0 + 32)
+ return regno - mips_regnum (current_gdbarch)->fp0 + 32;
+ else if (regno == mips_regnum (current_gdbarch)->pc)
+ return REGNO_OFFSET + 0;
+ else if (regno == mips_regnum (current_gdbarch)->cause)
+ return REGNO_OFFSET + 1;
+ else if (regno == mips_regnum (current_gdbarch)->hi)
+ return REGNO_OFFSET + 2;
+ else if (regno == mips_regnum (current_gdbarch)->lo)
+ return REGNO_OFFSET + 3;
+ else if (regno == mips_regnum (current_gdbarch)->fp_control_status)
+ return REGNO_OFFSET + 4;
+ else if (regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
+ return REGNO_OFFSET + 5;
+ else
+ /* FIXME: Is there a way to get the status register? */
+ return 0;
}
/* Fetch the remote registers. */
return memory_remove_breakpoint (addr, contents_cache);
}
-#if 0 /* currently not used */
-/* PMON does not currently provide support for the debug mode 'b'
- commands to manipulate breakpoints. However, if we wanted to use
- the monitor breakpoints (rather than the GDB BREAK_INSN version)
- then this code performs the work needed to leave debug mode,
- set/clear the breakpoint, and then return to debug mode. */
-
-#define PMON_MAX_BP (33) /* 32 SW, 1 HW */
-static CORE_ADDR mips_pmon_bp_info[PMON_MAX_BP];
-/* NOTE: The code relies on this vector being zero-initialised by the system */
-
-static int
-pmon_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
- int status;
-
- if (monitor_supports_breakpoints)
- {
- char tbuff[12]; /* space for breakpoint command */
- int bpnum;
- CORE_ADDR bpaddr;
-
- /* PMON does not support debug level breakpoint set/remove: */
- if (mips_exit_debug ())
- mips_error ("Failed to exit debug mode");
-
- sprintf (tbuff, "b %08x\r", addr);
- mips_send_command (tbuff, 0);
-
- mips_expect ("Bpt ");
-
- if (!mips_getstring (tbuff, remote_timeout))
- return 1;
- tbuff[2] = '\0'; /* terminate the string */
- if (sscanf (tbuff, "%d", &bpnum) != 1)
- {
- fprintf_unfiltered (gdb_stderr,
- "Invalid decimal breakpoint number from target: %s\n", tbuff);
- return 1;
- }
-
- mips_expect (" = ");
-
- /* Lead in the hex number we are expecting: */
- tbuff[0] = '0';
- tbuff[1] = 'x';
-
- /* FIXME!! only 8 bytes! need to expand for Bfd64;
- which targets return 64-bit addresses? PMON returns only 32! */
- if (!mips_getstring (&tbuff[2], 8))
- return 1;
- tbuff[10] = '\0'; /* terminate the string */
-
- if (sscanf (tbuff, "0x%08x", &bpaddr) != 1)
- {
- fprintf_unfiltered (gdb_stderr,
- "Invalid hex address from target: %s\n", tbuff);
- return 1;
- }
-
- if (bpnum >= PMON_MAX_BP)
- {
- fprintf_unfiltered (gdb_stderr,
- "Error: Returned breakpoint number %d outside acceptable range (0..%d)\n",
- bpnum, PMON_MAX_BP - 1);
- return 1;
- }
-
- if (bpaddr != addr)
- fprintf_unfiltered (gdb_stderr, "Warning: Breakpoint addresses do not match: 0x%x != 0x%x\n", addr, bpaddr);
-
- mips_pmon_bp_info[bpnum] = bpaddr;
-
- mips_expect ("\r\n");
- mips_expect (mips_monitor_prompt);
-
- mips_enter_debug ();
-
- return 0;
- }
-
- return mips_store_word (addr, BREAK_INSN, contents_cache);
-}
-
-static int
-pmon_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
- if (monitor_supports_breakpoints)
- {
- int bpnum;
- char tbuff[7]; /* enough for delete breakpoint command */
-
- for (bpnum = 0; bpnum < PMON_MAX_BP; bpnum++)
- if (mips_pmon_bp_info[bpnum] == addr)
- break;
-
- if (bpnum >= PMON_MAX_BP)
- {
- fprintf_unfiltered (gdb_stderr,
- "pmon_remove_breakpoint: Failed to find breakpoint at address 0x%s\n",
- paddr_nz (addr));
- return 1;
- }
-
- if (mips_exit_debug ())
- mips_error ("Failed to exit debug mode");
-
- sprintf (tbuff, "db %02d\r", bpnum);
-
- mips_send_command (tbuff, -1);
- /* NOTE: If the breakpoint does not exist then a "Bpt <dd> not
- set" message will be returned. */
-
- mips_enter_debug ();
-
- return 0;
- }
-
- return target_write_memory (addr, contents_cache, BREAK_INSN_SIZE);
-}
-#endif
-
-
/* Tell whether this target can support a hardware breakpoint. CNT
is the number of hardware breakpoints already installed. This
implements the TARGET_CAN_USE_HARDWARE_WATCHPOINT macro. */
}
-/* Insert a hardware breakpoint. This works only on LSI targets, which
- implement ordinary breakpoints using hardware facilities. */
-
-static int
-remote_mips_insert_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
- if (strcmp (target_shortname, "lsi") == 0)
- return mips_insert_breakpoint (addr, contents_cache);
- else
- return -1;
-}
-
-
-/* Remove a hardware breakpoint. This works only on LSI targets, which
- implement ordinary breakpoints using hardware facilities. */
-
-static int
-remote_mips_remove_hw_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
- if (strcmp (target_shortname, "lsi") == 0)
- return mips_remove_breakpoint (addr, contents_cache);
- else
- return -1;
-}
-
/* Set a data watchpoint. ADDR and LEN should be obvious. TYPE is 0
for a write watchpoint, 1 for a read watchpoint, or 2 for a read/write
watchpoint. */
projects / deliverable / binutils-gdb.git / blobdiff