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-rw-r--r--gdb/convex-tdep.c934
1 files changed, 934 insertions, 0 deletions
diff --git a/gdb/convex-tdep.c b/gdb/convex-tdep.c
new file mode 100644
index 0000000..c206e1e
--- /dev/null
+++ b/gdb/convex-tdep.c
@@ -0,0 +1,934 @@
+/* Convex stuff for GDB.
+ Copyright (C) 1990 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+GDB 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 1, or (at your option)
+any later version.
+
+GDB 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 GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "param.h"
+#include "command.h"
+#include "symtab.h"
+#include "value.h"
+#include "frame.h"
+#include "inferior.h"
+#include "wait.h"
+
+#include <signal.h>
+#include <fcntl.h>
+
+#include "gdbcore.h"
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <sys/user.h>
+#include <sys/ioctl.h>
+#include <sys/pcntl.h>
+#include <sys/thread.h>
+#include <sys/proc.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include "gdbcmd.h"
+
+exec_file_command (filename, from_tty)
+ char *filename;
+ int from_tty;
+{
+ int val;
+ int n;
+ struct stat st_exec;
+
+ /* Eliminate all traces of old exec file.
+ Mark text segment as empty. */
+
+ if (execfile)
+ free (execfile);
+ execfile = 0;
+ data_start = 0;
+ data_end = 0;
+ text_start = 0;
+ text_end = 0;
+ exec_data_start = 0;
+ exec_data_end = 0;
+ if (execchan >= 0)
+ close (execchan);
+ execchan = -1;
+
+ n_exec = 0;
+
+ /* Now open and digest the file the user requested, if any. */
+
+ if (filename)
+ {
+ filename = tilde_expand (filename);
+ make_cleanup (free, filename);
+
+ execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0,
+ &execfile);
+ if (execchan < 0)
+ perror_with_name (filename);
+
+ if (myread (execchan, &filehdr, sizeof filehdr) < 0)
+ perror_with_name (filename);
+
+ if (! IS_SOFF_MAGIC (filehdr.h_magic))
+ error ("%s: not an executable file.", filename);
+
+ if (myread (execchan, &opthdr, filehdr.h_opthdr) <= 0)
+ perror_with_name (filename);
+
+ /* Read through the section headers.
+ For text, data, etc, record an entry in the exec file map.
+ Record text_start and text_end. */
+
+ lseek (execchan, (long) filehdr.h_scnptr, 0);
+
+ for (n = 0; n < filehdr.h_nscns; n++)
+ {
+ if (myread (execchan, &scnhdr, sizeof scnhdr) < 0)
+ perror_with_name (filename);
+
+ if ((scnhdr.s_flags & S_TYPMASK) >= S_TEXT
+ && (scnhdr.s_flags & S_TYPMASK) <= S_COMON)
+ {
+ exec_map[n_exec].mem_addr = scnhdr.s_vaddr;
+ exec_map[n_exec].mem_end = scnhdr.s_vaddr + scnhdr.s_size;
+ exec_map[n_exec].file_addr = scnhdr.s_scnptr;
+ exec_map[n_exec].type = scnhdr.s_flags & S_TYPMASK;
+ n_exec++;
+
+ if ((scnhdr.s_flags & S_TYPMASK) == S_TEXT)
+ {
+ text_start = scnhdr.s_vaddr;
+ text_end = scnhdr.s_vaddr + scnhdr.s_size;
+ }
+ }
+ }
+
+ fstat (execchan, &st_exec);
+ exec_mtime = st_exec.st_mtime;
+
+ validate_files ();
+ }
+ else if (from_tty)
+ printf_filtered ("No exec file now.\n");
+
+ /* Tell display code (if any) about the changed file name. */
+ if (exec_file_display_hook)
+ (*exec_file_display_hook) (filename);
+}
+
+/* Read data from SOFF exec or core file.
+ Return 0 on success, EIO if address out of bounds. */
+
+int
+xfer_core_file (memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+{
+ register int i;
+ register int n;
+ register int val;
+ int xferchan;
+ char **xferfile;
+ int fileptr;
+ int returnval = 0;
+
+ while (len > 0)
+ {
+ xferfile = 0;
+ xferchan = 0;
+
+ /* Determine which file the next bunch of addresses reside in,
+ and where in the file. Set the file's read/write pointer
+ to point at the proper place for the desired address
+ and set xferfile and xferchan for the correct file.
+ If desired address is nonexistent, leave them zero.
+ i is set to the number of bytes that can be handled
+ along with the next address. */
+
+ i = len;
+
+ for (n = 0; n < n_core; n++)
+ {
+ if (memaddr >= core_map[n].mem_addr && memaddr < core_map[n].mem_end
+ && (core_map[n].thread == -1
+ || core_map[n].thread == inferior_thread))
+ {
+ i = min (len, core_map[n].mem_end - memaddr);
+ fileptr = core_map[n].file_addr + memaddr - core_map[n].mem_addr;
+ if (core_map[n].file_addr)
+ {
+ xferfile = &corefile;
+ xferchan = corechan;
+ }
+ break;
+ }
+ else if (core_map[n].mem_addr >= memaddr
+ && core_map[n].mem_addr < memaddr + i)
+ i = core_map[n].mem_addr - memaddr;
+ }
+
+ if (!xferfile)
+ for (n = 0; n < n_exec; n++)
+ {
+ if (memaddr >= exec_map[n].mem_addr
+ && memaddr < exec_map[n].mem_end)
+ {
+ i = min (len, exec_map[n].mem_end - memaddr);
+ fileptr = exec_map[n].file_addr + memaddr
+ - exec_map[n].mem_addr;
+ if (exec_map[n].file_addr)
+ {
+ xferfile = &execfile;
+ xferchan = execchan;
+ }
+ break;
+ }
+ else if (exec_map[n].mem_addr >= memaddr
+ && exec_map[n].mem_addr < memaddr + i)
+ i = exec_map[n].mem_addr - memaddr;
+ }
+
+ /* Now we know which file to use.
+ Set up its pointer and transfer the data. */
+ if (xferfile)
+ {
+ if (*xferfile == 0)
+ if (xferfile == &execfile)
+ error ("No program file to examine.");
+ else
+ error ("No core dump file or running program to examine.");
+ val = lseek (xferchan, fileptr, 0);
+ if (val < 0)
+ perror_with_name (*xferfile);
+ val = myread (xferchan, myaddr, i);
+ if (val < 0)
+ perror_with_name (*xferfile);
+ }
+ /* If this address is for nonexistent memory,
+ read zeros if reading, or do nothing if writing. */
+ else
+ {
+ bzero (myaddr, i);
+ returnval = EIO;
+ }
+
+ memaddr += i;
+ myaddr += i;
+ len -= i;
+ }
+ return returnval;
+}
+
+
+/* Here from info files command to print an address map. */
+
+print_maps ()
+{
+ struct pmap ptrs[200];
+ int n;
+
+ /* ID strings for core and executable file sections */
+
+ static char *idstr[] =
+ {
+ "0", "text", "data", "tdata", "bss", "tbss",
+ "common", "ttext", "ctx", "tctx", "10", "11", "12",
+ };
+
+ for (n = 0; n < n_core; n++)
+ {
+ core_map[n].which = 0;
+ ptrs[n] = core_map[n];
+ }
+ for (n = 0; n < n_exec; n++)
+ {
+ exec_map[n].which = 1;
+ ptrs[n_core+n] = exec_map[n];
+ }
+
+ qsort (ptrs, n_core + n_exec, sizeof *ptrs, ptr_cmp);
+
+ for (n = 0; n < n_core + n_exec; n++)
+ {
+ struct pmap *p = &ptrs[n];
+ if (n > 0)
+ {
+ if (p->mem_addr < ptrs[n-1].mem_end)
+ p->mem_addr = ptrs[n-1].mem_end;
+ if (p->mem_addr >= p->mem_end)
+ continue;
+ }
+ printf_filtered ("%08x .. %08x %-6s %s\n",
+ p->mem_addr, p->mem_end, idstr[p->type],
+ p->which ? execfile : corefile);
+ }
+}
+
+/* Compare routine to put file sections in order.
+ Sort into increasing order on address, and put core file sections
+ before exec file sections if both files contain the same addresses. */
+
+static ptr_cmp (a, b)
+ struct pmap *a, *b;
+{
+ if (a->mem_addr != b->mem_addr) return a->mem_addr - b->mem_addr;
+ return a->which - b->which;
+}
+
+/* Trapped internal variables are used to handle special registers.
+ A trapped i.v. calls a hook here every time it is dereferenced,
+ to provide a new value for the variable, and it calls a hook here
+ when a new value is assigned, to do something with the value.
+
+ The vector registers are $vl, $vs, $vm, $vN, $VN (N in 0..7).
+ The communication registers are $cN, $CN (N in 0..63).
+ They not handled as regular registers because it's expensive to
+ read them, and their size varies, and they have too many names. */
+
+
+/* Return 1 if NAME is a trapped internal variable, else 0. */
+
+int
+is_trapped_internalvar (name)
+ char *name;
+{
+ if ((name[0] == 'c' || name[0] == 'C')
+ && name[1] >= '0' && name[1] <= '9'
+ && (name[2] == '\0'
+ || (name[2] >= '0' && name[2] <= '9'
+ && name[3] == '\0' && name[1] != '0'))
+ && atoi (&name[1]) < 64) return 1;
+
+ if ((name[0] == 'v' || name[0] == 'V')
+ && (((name[1] & -8) == '0' && name[2] == '\0')
+ || !strcmp (name, "vl")
+ || !strcmp (name, "vs")
+ || !strcmp (name, "vm")))
+ return 1;
+ else return 0;
+}
+
+/* Return the value of trapped internal variable VAR */
+
+value
+value_of_trapped_internalvar (var)
+ struct internalvar *var;
+{
+ char *name = var->name;
+ value val;
+ struct type *type;
+ long len = *read_vector_register (VL_REGNUM);
+ if (len <= 0 || len > 128) len = 128;
+
+ if (!strcmp (name, "vl"))
+ {
+ val = value_from_long (builtin_type_int,
+ (LONGEST) *read_vector_register_1 (VL_REGNUM));
+ }
+ else if (!strcmp (name, "vs"))
+ {
+ val = value_from_long (builtin_type_int,
+ (LONGEST) *read_vector_register_1 (VS_REGNUM));
+ }
+ else if (!strcmp (name, "vm"))
+ {
+ long vm[4];
+ long i, *p;
+ bcopy (read_vector_register_1 (VM_REGNUM), vm, sizeof vm);
+ type = vector_type (builtin_type_int, len);
+ val = allocate_value (type);
+ p = (long *) VALUE_CONTENTS (val);
+ for (i = 0; i < len; i++)
+ *p++ = !! (vm[3 - (i >> 5)] & (1 << (i & 037)));
+ }
+ else if (name[0] == 'V')
+ {
+ type = vector_type (builtin_type_long_long, len);
+ val = allocate_value (type);
+ bcopy (read_vector_register_1 (name[1] - '0'),
+ VALUE_CONTENTS (val), TYPE_LENGTH (type));
+ }
+ else if (name[0] == 'v')
+ {
+ long *p1, *p2;
+ type = vector_type (builtin_type_long, len);
+ val = allocate_value (type);
+ p1 = read_vector_register_1 (name[1] - '0');
+ p2 = (long *) VALUE_CONTENTS (val);
+ while (--len >= 0) {p1++; *p2++ = *p1++;}
+ }
+
+ else if (name[0] == 'c')
+ val = value_from_long (builtin_type_int,
+ read_comm_register (atoi (&name[1])));
+ else if (name[0] == 'C')
+ val = value_from_long (builtin_type_long_long,
+ read_comm_register (atoi (&name[1])));
+
+ VALUE_LVAL (val) = lval_internalvar;
+ VALUE_INTERNALVAR (val) = var;
+ return val;
+}
+
+/* Construct the type for a vector register's value --
+ array[LENGTH] of ELEMENT_TYPE. */
+
+static struct type *
+vector_type (element_type, length)
+ struct type *element_type;
+ long length;
+{
+ struct type *type = (struct type *) xmalloc (sizeof (struct type));
+ bzero (type, sizeof type);
+ TYPE_CODE (type) = TYPE_CODE_ARRAY;
+ TYPE_TARGET_TYPE (type) = element_type;
+ TYPE_LENGTH (type) = length * TYPE_LENGTH (TYPE_TARGET_TYPE (type));
+ return type;
+}
+
+/* Handle a new value assigned to a trapped internal variable */
+
+void
+set_trapped_internalvar (var, val, bitpos, bitsize, offset)
+ struct internalvar *var;
+ value val;
+ int bitpos, bitsize, offset;
+{
+ char *name = var->name;
+ long long newval = value_as_long (val);
+
+ if (!strcmp (name, "vl"))
+ write_vector_register (VL_REGNUM, 0, newval);
+ else if (!strcmp (name, "vs"))
+ write_vector_register (VS_REGNUM, 0, newval);
+ else if (name[0] == 'c' || name[0] == 'C')
+ write_comm_register (atoi (&name[1]), newval);
+ else if (!strcmp (name, "vm"))
+ error ("can't assign to $vm");
+ else
+ {
+ offset /= bitsize / 8;
+ write_vector_register (name[1] - '0', offset, newval);
+ }
+}
+
+/* Print an integer value when no format was specified. gdb normally
+ prints these values in decimal, but the the leading 0x80000000 of
+ pointers produces intolerable 10-digit negative numbers.
+ If it looks like an address, print it in hex instead. */
+
+decout (stream, type, val)
+ FILE *stream;
+ struct type *type;
+ LONGEST val;
+{
+ long lv = val;
+
+ switch (output_radix)
+ {
+ case 0:
+ if ((lv == val || (unsigned) lv == val)
+ && ((lv & 0xf0000000) == 0x80000000
+ || ((lv & 0xf0000000) == 0xf0000000 && lv < STACK_END_ADDR)))
+ {
+ fprintf_filtered (stream, "%#x", lv);
+ return;
+ }
+
+ case 10:
+ fprintf_filtered (stream, TYPE_UNSIGNED (type) ? "%llu" : "%lld", val);
+ return;
+
+ case 8:
+ if (TYPE_LENGTH (type) <= sizeof lv)
+ fprintf_filtered (stream, "%#o", lv);
+ else
+ fprintf_filtered (stream, "%#llo", val);
+ return;
+
+ case 16:
+ if (TYPE_LENGTH (type) <= sizeof lv)
+ fprintf_filtered (stream, "%#x", lv);
+ else
+ fprintf_filtered (stream, "%#llx", val);
+ return;
+ }
+}
+
+/* Change the default output radix to 10 or 16, or set it to 0 (heuristic).
+ This command is mostly obsolete now that the print command allows
+ formats to apply to aggregates, but is still handy occasionally. */
+
+static void
+set_base_command (arg)
+ char *arg;
+{
+ int new_radix;
+
+ if (!arg)
+ output_radix = 0;
+ else
+ {
+ new_radix = atoi (arg);
+ if (new_radix != 10 && new_radix != 16 && new_radix != 8)
+ error ("base must be 8, 10 or 16, or null");
+ else output_radix = new_radix;
+ }
+}
+
+/* Turn pipelining on or off in the inferior. */
+
+static void
+set_pipelining_command (arg)
+ char *arg;
+{
+ if (!arg)
+ {
+ sequential = !sequential;
+ printf_filtered ("%s\n", sequential ? "off" : "on");
+ }
+ else if (!strcmp (arg, "on"))
+ sequential = 0;
+ else if (!strcmp (arg, "off"))
+ sequential = 1;
+ else error ("valid args are `on', to allow instructions to overlap, or\n\
+`off', to prevent it and thereby pinpoint exceptions.");
+}
+
+/* Enable, disable, or force parallel execution in the inferior. */
+
+static void
+set_parallel_command (arg)
+ char *arg;
+{
+ struct rlimit rl;
+ int prevparallel = parallel;
+
+ if (!strncmp (arg, "fixed", strlen (arg)))
+ parallel = 2;
+ else if (!strcmp (arg, "on"))
+ parallel = 1;
+ else if (!strcmp (arg, "off"))
+ parallel = 0;
+ else error ("valid args are `on', to allow multiple threads, or\n\
+`fixed', to force multiple threads, or\n\
+`off', to run with one thread only.");
+
+ if ((prevparallel == 0) != (parallel == 0) && inferior_pid)
+ printf_filtered ("will take effect at next run.\n");
+
+ getrlimit (RLIMIT_CONCUR, &rl);
+ rl.rlim_cur = parallel ? rl.rlim_max : 1;
+ setrlimit (RLIMIT_CONCUR, &rl);
+
+ if (inferior_pid)
+ set_fixed_scheduling (inferior_pid, parallel == 2);
+}
+
+/* Add a new name for an existing command. */
+
+static void
+alias_command (arg)
+ char *arg;
+{
+ static char *aliaserr = "usage is `alias NEW OLD', no args allowed";
+ char *newname = arg;
+ struct cmd_list_element *new, *old;
+
+ if (!arg)
+ error_no_arg ("newname oldname");
+
+ new = lookup_cmd (&arg, cmdlist, "", -1);
+ if (new && !strncmp (newname, new->name, strlen (new->name)))
+ {
+ newname = new->name;
+ if (!(*arg == '-'
+ || (*arg >= 'a' && *arg <= 'z')
+ || (*arg >= 'A' && *arg <= 'Z')
+ || (*arg >= '0' && *arg <= '9')))
+ error (aliaserr);
+ }
+ else
+ {
+ arg = newname;
+ while (*arg == '-'
+ || (*arg >= 'a' && *arg <= 'z')
+ || (*arg >= 'A' && *arg <= 'Z')
+ || (*arg >= '0' && *arg <= '9'))
+ arg++;
+ if (*arg != ' ' && *arg != '\t')
+ error (aliaserr);
+ *arg = '\0';
+ arg++;
+ }
+
+ old = lookup_cmd (&arg, cmdlist, "", 0);
+
+ if (*arg != '\0')
+ error (aliaserr);
+
+ if (new && !strncmp (newname, new->name, strlen (new->name)))
+ {
+ char *tem;
+ if (new->class == (int) class_user || new->class == (int) class_alias)
+ tem = "Redefine command \"%s\"? ";
+ else
+ tem = "Really redefine built-in command \"%s\"? ";
+ if (!query (tem, new->name))
+ error ("Command \"%s\" not redefined.", new->name);
+ }
+
+ add_com (newname, class_alias, old->function, old->doc);
+}
+
+
+
+/* Print the current thread number, and any threads with signals in the
+ queue. */
+
+thread_info ()
+{
+ struct threadpid *p;
+
+ if (have_inferior_p ())
+ {
+ ps.pi_buffer = (char *) &comm_registers;
+ ps.pi_nbytes = sizeof comm_registers;
+ ps.pi_offset = 0;
+ ps.pi_thread = inferior_thread;
+ ioctl (inferior_fd, PIXRDCREGS, &ps);
+ }
+
+ printf_filtered ("Current thread %d stopped with signal %d.%d (%s).\n",
+ inferior_thread, stop_signal, stop_sigcode,
+ subsig_name (stop_signal, stop_sigcode));
+
+ for (p = signal_stack; p->pid; p--)
+ printf_filtered ("Thread %d stopped with signal %d.%d (%s).\n",
+ p->thread, p->signo, p->subsig,
+ subsig_name (p->signo, p->subsig));
+
+ if (iscrlbit (comm_registers.crctl.lbits.cc, 64+13))
+ printf_filtered ("New thread start pc %#x\n",
+ (long) (comm_registers.crreg.pcpsw >> 32));
+}
+
+/* Return string describing a signal.subcode number */
+
+static char *
+subsig_name (signo, subcode)
+ int signo, subcode;
+{
+ static char *subsig4[] = {
+ "error exit", "privileged instruction", "unknown",
+ "unknown", "undefined opcode",
+ 0};
+ static char *subsig5[] = {0,
+ "breakpoint", "single step", "fork trap", "exec trap", "pfork trap",
+ "join trap", "idle trap", "last thread", "wfork trap",
+ "process breakpoint", "trap instruction",
+ 0};
+ static char *subsig8[] = {0,
+ "int overflow", "int divide check", "float overflow",
+ "float divide check", "float underflow", "reserved operand",
+ "sqrt error", "exp error", "ln error", "sin error", "cos error",
+ 0};
+ static char *subsig10[] = {0,
+ "invalid inward ring address", "invalid outward ring call",
+ "invalid inward ring return", "invalid syscall gate",
+ "invalid rtn frame length", "invalid comm reg address",
+ "invalid trap gate",
+ 0};
+ static char *subsig11[] = {0,
+ "read access denied", "write access denied", "execute access denied",
+ "segment descriptor fault", "page table fault", "data reference fault",
+ "i/o access denied", "levt pte invalid",
+ 0};
+
+ static char **subsig_list[] =
+ {0, 0, 0, 0, subsig4, subsig5, 0, 0, subsig8, 0, subsig10, subsig11, 0};
+
+ int i;
+ char *p = signo < NSIG ? sys_siglist[signo] : "unknown";
+
+ if (signo >= (sizeof subsig_list / sizeof *subsig_list)
+ || !subsig_list[signo])
+ return p;
+ for (i = 1; subsig_list[signo][i]; i++)
+ if (i == subcode)
+ return subsig_list[signo][subcode];
+ return p;
+}
+
+
+/* Print a compact display of thread status, essentially x/i $pc
+ for all active threads. */
+
+static void
+threadstat ()
+{
+ int t;
+
+ for (t = 0; t < n_threads; t++)
+ if (thread_state[t] == PI_TALIVE)
+ {
+ printf_filtered ("%d%c %08x%c %d.%d ", t,
+ (t == inferior_thread ? '*' : ' '), thread_pc[t],
+ (thread_is_in_kernel[t] ? '#' : ' '),
+ thread_signal[t], thread_sigcode[t]);
+ print_insn (thread_pc[t], stdout);
+ printf_filtered ("\n");
+ }
+}
+
+/* Change the current thread to ARG. */
+
+set_thread_command (arg)
+ char *arg;
+{
+ int thread;
+
+ if (!arg)
+ {
+ threadstat ();
+ return;
+ }
+
+ thread = parse_and_eval_address (arg);
+
+ if (thread < 0 || thread > n_threads || thread_state[thread] != PI_TALIVE)
+ error ("no such thread.");
+
+ select_thread (thread);
+
+ stop_pc = read_pc ();
+ flush_cached_frames ();
+ set_current_frame (create_new_frame (read_register (FP_REGNUM),
+ read_pc ()));
+ select_frame (get_current_frame (), 0);
+ print_sel_frame (1);
+}
+
+/* Here on CONT command; gdb's dispatch address is changed to come here.
+ Set global variable ALL_CONTINUE to tell resume() that it should
+ start up all threads, and that a thread switch will not blow gdb's
+ mind. */
+
+static void
+convex_cont_command (proc_count_exp, from_tty)
+ char *proc_count_exp;
+ int from_tty;
+{
+ all_continue = 1;
+ cont_command (proc_count_exp, from_tty);
+}
+
+/* Here on 1CONT command. Resume only the current thread. */
+
+one_cont_command (proc_count_exp, from_tty)
+ char *proc_count_exp;
+ int from_tty;
+{
+ cont_command (proc_count_exp, from_tty);
+}
+
+/* Print the contents and lock bits of all communication registers,
+ or just register ARG if ARG is a communication register,
+ or the 3-word resource structure in memory at address ARG. */
+
+comm_registers_info (arg)
+ char *arg;
+{
+ int i, regnum;
+
+ if (arg)
+ {
+ if (sscanf (arg, "0x%x", &regnum) == 1
+ || sscanf (arg, "%d", &regnum) == 1)
+ {
+ if (regnum > 0)
+ regnum &= ~0x8000;
+ }
+ else if (sscanf (arg, "$c%d", &regnum) == 1)
+ ;
+ else if (sscanf (arg, "$C%d", &regnum) == 1)
+ ;
+ else
+ regnum = parse_and_eval_address (arg);
+
+ if (regnum >= 64)
+ error ("%s: invalid register name.", arg);
+
+ /* if we got a (user) address, examine the resource struct there */
+
+ if (regnum < 0)
+ {
+ static int buf[3];
+ read_memory (regnum, buf, sizeof buf);
+ printf_filtered ("%08x %08x%08x%s\n", regnum, buf[1], buf[2],
+ buf[0] & 0xff ? " locked" : "");
+ return;
+ }
+ }
+
+ ps.pi_buffer = (char *) &comm_registers;
+ ps.pi_nbytes = sizeof comm_registers;
+ ps.pi_offset = 0;
+ ps.pi_thread = inferior_thread;
+ ioctl (inferior_fd, PIXRDCREGS, &ps);
+
+ for (i = 0; i < 64; i++)
+ if (!arg || i == regnum)
+ printf_filtered ("%2d 0x8%03x %016llx%s\n", i, i,
+ comm_registers.crreg.r4[i],
+ (iscrlbit (comm_registers.crctl.lbits.cc, i)
+ ? " locked" : ""));
+}
+
+/* Print the psw */
+
+static void
+psw_info (arg)
+ char *arg;
+{
+ struct pswbit
+ {
+ int bit;
+ int pos;
+ char *text;
+ };
+
+ static struct pswbit pswbit[] =
+ {
+ { 0x80000000, -1, "A carry" },
+ { 0x40000000, -1, "A integer overflow" },
+ { 0x20000000, -1, "A zero divide" },
+ { 0x10000000, -1, "Integer overflow enable" },
+ { 0x08000000, -1, "Trace" },
+ { 0x06000000, 25, "Frame length" },
+ { 0x01000000, -1, "Sequential" },
+ { 0x00800000, -1, "S carry" },
+ { 0x00400000, -1, "S integer overflow" },
+ { 0x00200000, -1, "S zero divide" },
+ { 0x00100000, -1, "Zero divide enable" },
+ { 0x00080000, -1, "Floating underflow" },
+ { 0x00040000, -1, "Floating overflow" },
+ { 0x00020000, -1, "Floating reserved operand" },
+ { 0x00010000, -1, "Floating zero divide" },
+ { 0x00008000, -1, "Floating error enable" },
+ { 0x00004000, -1, "Floating underflow enable" },
+ { 0x00002000, -1, "IEEE" },
+ { 0x00001000, -1, "Sequential stores" },
+ { 0x00000800, -1, "Intrinsic error" },
+ { 0x00000400, -1, "Intrinsic error enable" },
+ { 0x00000200, -1, "Trace thread creates" },
+ { 0x00000100, -1, "Thread init trap" },
+ { 0x000000e0, 5, "Reserved" },
+ { 0x0000001f, 0, "Intrinsic error code" },
+ {0, 0, 0},
+ };
+
+ long psw;
+ struct pswbit *p;
+
+ if (arg)
+ psw = parse_and_eval_address (arg);
+ else
+ psw = read_register (PS_REGNUM);
+
+ for (p = pswbit; p->bit; p++)
+ {
+ if (p->pos < 0)
+ printf_filtered ("%08x %s %s\n", p->bit,
+ (psw & p->bit) ? "yes" : "no ", p->text);
+ else
+ printf_filtered ("%08x %3d %s\n", p->bit,
+ (psw & p->bit) >> p->pos, p->text);
+ }
+}
+
+_initialize_convex_dep ()
+{
+ add_com ("alias", class_support, alias_command,
+ "Add a new name for an existing command.");
+
+ add_cmd ("base", class_vars, set_base_command,
+ "Change the integer output radix to 8, 10 or 16\n\
+or use just `set base' with no args to return to the ad-hoc default,\n\
+which is 16 for integers that look like addresses, 10 otherwise.",
+ &setlist);
+
+ add_cmd ("pipeline", class_run, set_pipelining_command,
+ "Enable or disable overlapped execution of instructions.\n\
+With `set pipe off', exceptions are reported with\n\
+$pc pointing at the instruction after the faulting one.\n\
+The default is `set pipe on', which runs faster.",
+ &setlist);
+
+ add_cmd ("parallel", class_run, set_parallel_command,
+ "Enable or disable multi-threaded execution of parallel code.\n\
+`set parallel off' means run the program on a single CPU.\n\
+`set parallel fixed' means run the program with all CPUs assigned to it.\n\
+`set parallel on' means run the program on any CPUs that are available.",
+ &setlist);
+
+ add_com ("1cont", class_run, one_cont_command,
+ "Continue the program, activating only the current thread.\n\
+Args are the same as the `cont' command.");
+
+ add_com ("thread", class_run, set_thread_command,
+ "Change the current thread, the one under scrutiny and control.\n\
+With no arg, show the active threads, the current one marked with *.");
+
+ add_info ("threads", thread_info,
+ "List status of active threads.");
+
+ add_info ("comm-registers", comm_registers_info,
+ "List communication registers and their contents.\n\
+A communication register name as argument means describe only that register.\n\
+An address as argument means describe the resource structure at that address.\n\
+`Locked' means that the register has been sent to but not yet received from.");
+
+ add_info ("psw", psw_info,
+ "Display $ps, the processor status word, bit by bit.\n\
+An argument means display that value's interpretation as a psw.");
+
+ add_cmd ("convex", no_class, 0, "Convex-specific commands.\n\
+32-bit registers $pc $ps $sp $ap $fp $a1-5 $s0-7 $v0-7 $vl $vs $vm $c0-63\n\
+64-bit registers $S0-7 $V0-7 $C0-63\n\
+\n\
+info threads display info on stopped threads waiting to signal\n\
+thread display list of active threads\n\
+thread N select thread N (its registers, stack, memory, etc.)\n\
+step, next, etc step selected thread only\n\
+1cont continue selected thread only\n\
+cont continue all threads\n\
+info comm-registers display contents of comm register(s) or a resource struct\n\
+info psw display processor status word $ps\n\
+set base N change integer radix used by `print' without a format\n\
+set pipeline off exceptions are precise, $pc points after the faulting insn\n\
+set pipeline on normal mode, $pc is somewhere ahead of faulting insn\n\
+set parallel off program runs on a single CPU\n\
+set parallel fixed all CPUs are assigned to the program\n\
+set parallel on normal mode, parallel execution on random available CPUs\n\
+",
+ &cmdlist);
+
+}