* README: Add note about SPARCworks cc release 3.0 and higher.

	Add procfs support for Alpha OSF/1-2.x.
	* config/alpha/nm-osf.h:  Renamed from nm-alpha.h, generic
	OSF/1 native support.
	* config/alpha/alpha-osf1.mh (NAT_FILE):  Changed accordingly.
	(MUNCH_DEFINE):  Removed.
	* config/alpha/alpha-osf2.mh, config/alpha/nm-osf2.h:  New files
	for procfs support.
	* configure.in (alpha-dec-osf*):  Use alpha-osf2.mh for OSF/1
	release 2.x and higher, else alpha-osf1.mh, as the procfs support
	in release 1.x is incomplete.
	* Makefile.in (ALLCONFIG):  Add config/alpha/alpha-osf2.mh.
	* alpha-nat.c (supply_gregset, fill_gregset, supply_fpgregset,
	fill_fpgregset):  New routines for procfs support.
	* inftarg.c (_initialize_inftarg):  Don't add ptrace support
	if we have an optional procfs and /proc is accessible.
	* procfs.c:  Include sys/fault.h and sys/syscall.h before
	including sys/procfs.h.
	(unconditionally_kill_inferior):  If PROCFS_NEED_PIOCSSIG_FOR_KILL
	is defined, additionally perform a PIOCSSIG to really terminate
	the inferior.
	(create_procinfo):  Always return a result.
	(create_procinfo, do_attach):  Don't trace T_IFAULT faults if
	PROCFS_DONT_TRACE_IFAULT is defined.
	(procfs_init_inferior):  Use START_INFERIOR_TRAPS_EXPECTED as
	argument to startup_inferior if it is defined.
	(proc_set_exec_trap):  If PIOCSSPCACT is defined, use it instead
	of tracing exits from exec system calls. Needed for the user level
	loader under Alpha OSF/1.
	(do_detach):  Clear any pending signal if we want to detach from
	a process without a signal.
	(set_proc_siginfo):  If PROCFS_DONT_PIOCSSIG_CURSIG is defined,
	don't issue a PIOCSSIG if pr_cursig already contains the signal we
	intend to set.
	(info_proc_signals):  If PROCFS_SIGPEND_OFFSET is defined, the
	pending signals are numbered from 1 instead of 0.
	(info_proc_mappings):  Increase size of output format for addresses
	if BFD_HOST_64_BIT is defined.
	(procfs_stop):  Renamed from child_stop.
	(_initialize_procfs):  Don't add procfs support if we have an
	optional procfs and /proc is not accessible.

1 files changed, 72 insertions, 1 deletions

diff --git a/gdb/alpha-nat.c b/gdb/alpha-nat.c
index a0c5399..4d91fe8 100644
--- a/gdb/alpha-nat.c
+++ b/gdb/alpha-nat.c
@@ -1,5 +1,5 @@
 /* Low level Alpha interface, for GDB when running native.
-   Copyright 1993 Free Software Foundation, Inc.
+   Copyright 1993, 1995 Free Software Foundation, Inc.
 
 This file is part of GDB.
 
@@ -142,3 +142,74 @@ register_addr (regno, blockend)
 {
   return REGISTER_PTRACE_ADDR (regno);
 }
+
+#ifdef USE_PROC_FS
+#include <sys/procfs.h>
+
+/*
+ * See the comment in m68k-tdep.c regarding the utility of these functions.
+ */
+
+void 
+supply_gregset (gregsetp)
+     gregset_t *gregsetp;
+{
+  register int regi;
+  register long *regp = gregsetp->regs;
+
+  for (regi = 0; regi < 31; regi++)
+    supply_register (regi, (char *)(regp + regi));
+
+  supply_register (PC_REGNUM, (char *)(regp + 31));
+}
+
+void
+fill_gregset (gregsetp, regno)
+     gregset_t *gregsetp;
+     int regno;
+{
+  int regi;
+  register long *regp = gregsetp->regs;
+
+  for (regi = 0; regi < 31; regi++)
+    if ((regno == -1) || (regno == regi))
+      *(regp + regi) = *(long *) &registers[REGISTER_BYTE (regi)];
+
+  if ((regno == -1) || (regno == PC_REGNUM))
+    *(regp + 31) = *(long *) &registers[REGISTER_BYTE (PC_REGNUM)];
+}
+
+/*
+ * Now we do the same thing for floating-point registers.
+ * Again, see the comments in m68k-tdep.c.
+ */
+
+void
+supply_fpregset (fpregsetp)
+     fpregset_t *fpregsetp;
+{
+  register int regi;
+  register long *regp = fpregsetp->regs;
+
+  for (regi = 0; regi < 32; regi++)
+    supply_register (regi + FP0_REGNUM, (char *)(regp + regi));
+}
+
+void
+fill_fpregset (fpregsetp, regno)
+     fpregset_t *fpregsetp;
+     int regno;
+{
+  int regi;
+  register long *regp = fpregsetp->regs;
+
+  for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
+    {
+      if ((regno == -1) || (regno == regi))
+	{
+	  *(regp + regi - FP0_REGNUM) =
+	    *(long *) &registers[REGISTER_BYTE (regi)];
+	}
+    }
+}
+#endif