* findvar.c (read_register_bytes write_register_bytes): Make

	these routines much smarter about updating registers from the
	target, only doing so when absolutely necessary.  This really
	speeds up register modification on some remote targets.

	* monitor.c:  More cleanups.  Get rid of monitor_load_ascii_srec.
	BFD makes this unnecessary.  Lots of debugging speedups.
	* (expect):  NULL terminate return string.
	* (monitor_open	monitor_supply_register parse_register_dump
	monitor_wait monitor_fetch_register):  Switch to using GNU regexp
	library to parse multi-register displays.
	* (monitor_read_memory): Read multiple bytes (up to 16) at once.
	* (monitor_create_inferior):  Call clear_proceed_status to make run
	command notice first breakpoint.
	* (monitor_load):  Clean up.  Reset inferior_pid, set pc to start
	address and reset symbol table stuff to make loads put things into
	a fresh state.
	* (monitor_load_srec):  Lower sleep time to 1 second.

	* monitor.h (struct monitor_ops):  Add register_pattern and
	supply_register to monitor_ops.

	* rom68k-rom.c:  Add new support for handling register dumps.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a01d0d2..bb490a3 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,29 @@
+Wed Mar 15 15:09:29 1995  Stu Grossman  (grossman@cygnus.com)
+
+       * findvar.c (read_register_bytes write_register_bytes):  Make
+       these routines much smarter about updating registers from the
+       target, only doing so when absolutely necessary.  This really
+       speeds up register modification on some remote targets.
+
+       * monitor.c:  More cleanups.  Get rid of monitor_load_ascii_srec.
+       BFD makes this unnecessary.  Lots of debugging speedups.
+       * (expect):  NULL terminate return string.
+       * (monitor_open monitor_supply_register parse_register_dump
+       monitor_wait monitor_fetch_register):  Switch to using GNU regexp
+       library to parse multi-register displays.
+       * (monitor_read_memory): Read multiple bytes (up to 16) at once.
+       * (monitor_create_inferior):  Call clear_proceed_status to make run
+       command notice first breakpoint.
+       * (monitor_load):  Clean up.  Reset inferior_pid, set pc to start
+       address and reset symbol table stuff to make loads put things into
+       a fresh state.
+       * (monitor_load_srec):  Lower sleep time to 1 second.
+
+       * monitor.h (struct monitor_ops):  Add register_pattern and
+       supply_register to monitor_ops.
+
+       * rom68k-rom.c:  Add new support for handling register dumps.
+
 Wed Mar 15 15:18:27 1995  Jim Kingdon  (kingdon@lioth.cygnus.com)
 
        * utils.c, defs.h (putchar_unfiltered, fputc_unfiltered): Make

diff --git a/gdb/monitor.h b/gdb/monitor.h
index ad21b02..59b6691 100644 (file)
--- a/gdb/monitor.h
+++ b/gdb/monitor.h
@@ -76,6 +76,13 @@ struct monitor_ops {
   struct cmd_resp getmem;      /* display memory */
   struct cmd_resp setreg;      /* set a register */
   struct cmd_resp getreg;      /* get a register */
+                               /* Some commands can dump a bunch of registers
+                                  at once.  This comes as a set of REG=VAL
+                                  pairs.  This should be called for each pair
+                                  of registers that we can parse to supply
+                                  GDB with the value of a register.  */
+  char *register_pattern;      /* Pattern that picks out register from reg dump */
+  void (*supply_register) PARAMS ((char *name, int namelen, char *val, int vallen));
   char *load;                  /* load command */
   char *prompt;                /* monitor command prompt */
   char *cmd_delim;             /* end-of-command delimitor */
@@ -133,3 +140,4 @@ extern struct monitor_ops        *current_monitor;
 #define REG_DELIM               (current_monitor->regset.delim)
 
 extern void monitor_open PARAMS ((char *args, struct monitor_ops *ops, int from_tty));
+extern char *monitor_supply_register PARAMS ((int regno, char *valstr));

diff --git a/gdb/rom68k-rom.c b/gdb/rom68k-rom.c
index 5673d50..ad5dd00 100644 (file)
--- a/gdb/rom68k-rom.c
+++ b/gdb/rom68k-rom.c
@@ -25,7 +25,57 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "monitor.h"
 #include "serial.h"
 
-void rom68k_open();
+static void rom68k_open PARAMS ((char *args, int from_tty));
+
+static void
+rom68k_supply_register (regname, regnamelen, val, vallen)
+     char *regname;
+     int regnamelen;
+     char *val;
+     int vallen;
+{
+  int numregs;
+  int regno;
+
+  numregs = 1;
+  regno = -1;
+
+  if (regnamelen == 2)
+    switch (regname[0])
+      {
+      case 'S':
+       if (regname[1] == 'R')
+         regno = PS_REGNUM;
+       break;
+      case 'P':
+       if (regname[1] == 'C')
+         regno = PC_REGNUM;
+       break;
+      case 'D':
+       if (regname[1] != 'R')
+         break;
+       regno = D0_REGNUM;
+       numregs = 8;
+       break;
+      case 'A':
+       if (regname[1] != 'R')
+         break;
+       regno = A0_REGNUM;
+       numregs = 7;
+       break;
+      }
+  else if (regnamelen == 3)
+    switch (regname[0])
+      {
+      case 'I':
+       if (regname[1] == 'S' && regname[2] == 'P')
+         regno = SP_REGNUM;
+      }
+
+  if (regno >= 0)
+    while (numregs-- > 0)
+      val = monitor_supply_register (regno++, val);
+}
 
 /*
  * this array of registers need to match the indexes used by GDB. The
@@ -66,7 +116,7 @@ static struct monitor_ops rom68k_cmds =
     NULL,                      /* setreg.term_cmd */
   },
   {
-    "dm %x 1\r",               /* getmem.cmd (addr) */
+    "dm %x %x\r",              /* getmem.cmd (addr, len) */
     "  ",                      /* getmem.resp_delim */
     NULL,                      /* getmem.term */
     NULL,                      /* getmem.term_cmd */
@@ -83,6 +133,9 @@ static struct monitor_ops rom68k_cmds =
     "= ",                      /* getreg.term */
     ".\r"                      /* getreg.term_cmd */
   },
+                               /* register_pattern */
+  "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)",
+  rom68k_supply_register,      /* supply_register */
   "dc\r",                      /* download command */
   "ROM68K :->",                        /* monitor command prompt */
   "=",                         /* end-of-command delimitor */