Delete Tru64 support

This commit does most of the mechanical removal.  IOW, the easy part.

procfs.c isn't touched beyond removing a couple obvious bits that are
guarded by a couple macros defined in config/alpha/nm-osf3.h.  Going
beyond that for procfs.c & co would be a harder excision that
potentially affects Solaris.

Some comments in the generic alpha code ABIs that may still be
relevant and I wouldn't know what to do with them.  That can always be
done on a separate pass, preferably by someone who can test on alpha.

A couple other spots have references to OSF/Tru64 and related files
being removed, but it felt like removing them would make things worse,
not better.  We can revisit those when we next need to touch that
code.

I didn't remove a reference to osf in testsuite/lib/future.exp, as I
believe that code is imported from DejaGNU.

Built and tested on x86_64 Fedora 20, with --enable-targets=all.

Tested that building for --target=alpha-osf3 on x86_64 Fedora 20
fails with:

 checking for default auto-load directory... $debugdir:$datadir/auto-load
 checking for default auto-load safe-path... $debugdir:$datadir/auto-load
 *** Configuration alpha-unknown-osf3 is obsolete.
 *** Support has been REMOVED.
 make[1]: *** [configure-gdb] Error 1
 make[1]: Leaving directory `build-osf'
 make: *** [all] Error 2

gdb/
2014-10-17  Pedro Alves  <palves@redhat.com>

	* Makefile.in (ALL_64_TARGET_OBS): Remove alpha-osf1-tdep.o.
	(HFILES_NO_SRCDIR): Remove config/alpha/nm-osf3.h.
	(ALLDEPFILES): Remove alpha-nat.c, alpha-osf1-tdep.c and
	solib-osf.c.
	* NEWS: Mention that support for alpha*-*-osf* has been removed.
	* ada-lang.h [__alpha__ && __osf__]
	(ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS): Delete.
	* alpha-nat.c, alpha-osf1-tdep.c: Delete files.
	* alpha-tdep.c (alpha_gdbarch_init): Remove reference to
	GDB_OSABI_OSF1.
	* config/alpha/alpha-osf3.mh, config/alpha/nm-osf3.h: Delete
	files.
	* config/djgpp/fnchange.lst (config/alpha/alpha-osf1.mh)
	(config/alpha/alpha-osf2.mh, config/alpha/alpha-osf3.mh): Delete.
	* configure: Regenerate.
	* configure.ac: Remove references to osf.
	* configure.host: Handle alpha*-*-osf* in the obsolete hosts
	section.  Remove all other references to osf.
	* configure.tgt: Add alpha*-*-osf* to the obsolete targets section.
	Remove all other references to osf.
	* dec-thread.c: Delete file.
	* defs.h (GDB_OSABI_OSF1): Delete.
	* inferior.h (START_INFERIOR_TRAPS_EXPECTED): New unconditionally
	defined.
	* osabi.c (gdb_osabi_names): Delete "OSF/1".
	* procfs.c (procfs_debug_inferior) [PROCFS_DONT_TRACE_FAULTS]:
	Delete code.
	(unconditionally_kill_inferior)
	[PROCFS_NEED_CLEAR_CURSIG_FOR_KILL]: Delete code.
	* solib-osf.c: Delete file.

gdb/testsuite/
2014-10-17  Pedro Alves  <palves@redhat.com>

	* gdb.base/callfuncs.exp: emove references to osf.
	* gdb.base/sigall.exp: Likewise.
	* gdb.gdb/selftest.exp: Likewise.
	* gdb.hp/gdb.base-hp/callfwmall.exp: Likewise.
	* gdb.mi/non-stop.c: Likewise.
	* gdb.mi/pthreads.c: Likewise.
	* gdb.reverse/sigall-precsave.exp: Likewise.
	* gdb.reverse/sigall-reverse.exp: Likewise.
	* gdb.threads/pthreads.c: Likewise.
	* gdb.threads/pthreads.exp: Likewise.

gdb/doc/
2014-10-17  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Ada Tasks and Core Files): Delete mention of Tru64.
	(SVR4 Process Information): Delete mention of OSF/1.

11 files changed, 21 insertions, 55 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 2eab6ab..aa952b5 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,16 @@
+2014-10-17  Pedro Alves  <palves@redhat.com>
+
+	* gdb.base/callfuncs.exp: emove references to osf.
+	* gdb.base/sigall.exp: Likewise.
+	* gdb.gdb/selftest.exp: Likewise.
+	* gdb.hp/gdb.base-hp/callfwmall.exp: Likewise.
+	* gdb.mi/non-stop.c: Likewise.
+	* gdb.mi/pthreads.c: Likewise.
+	* gdb.reverse/sigall-precsave.exp: Likewise.
+	* gdb.reverse/sigall-reverse.exp: Likewise.
+	* gdb.threads/pthreads.c: Likewise.
+	* gdb.threads/pthreads.exp: Likewise.
+
 2014-10-17  Yao Qi  <yao@codesourcery.com>
 
 	* gdb.base/commands.exp (gdbvar_complex_if_while_test): Don't
diff --git a/gdb/testsuite/gdb.base/callfuncs.exp b/gdb/testsuite/gdb.base/callfuncs.exp
index a8c8241..cff8bd0 100644
--- a/gdb/testsuite/gdb.base/callfuncs.exp
+++ b/gdb/testsuite/gdb.base/callfuncs.exp
@@ -122,7 +122,7 @@ proc do_function_calls {} {
 	if $prototypes then {
 	    setup_xfail "sparc-*-*" "mips*-*-*" 5318
 	    if { ! [test_compiler_info gcc-*-*] } then {
-		setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
+		setup_xfail "i*86-*-sysv4*" 5318
 	    }
 	}
         
diff --git a/gdb/testsuite/gdb.base/sigall.exp b/gdb/testsuite/gdb.base/sigall.exp
index 7a4007f..42927b6 100644
--- a/gdb/testsuite/gdb.base/sigall.exp
+++ b/gdb/testsuite/gdb.base/sigall.exp
@@ -54,17 +54,6 @@ proc test_one_sig {nextsig} {
 	    "Continuing.*Program received signal SIG$esig.*" \
 		"get signal $esig"
     }
-    if [ istarget "alpha-dec-osf3*" ] then {
-	# OSF/1-3.x is unable to continue with a job control stop signal.
-	# The inferior remains stopped without an event of interest
-	# and GDB waits forever for the inferior to stop on an event
-	# of interest. Work around the kernel bug.
-	if { $thissig == "TSTP" || $thissig == "TTIN" || $thissig == "TTOU" } {
-	    setup_xfail "alpha-dec-osf3*"
-	    fail "cannot continue from signal $thissig"
-	    set need_another_continue 0
-	}
-    }
 
     if $need_another_continue then {
 	if { $thissig == "URG" } {
diff --git a/gdb/testsuite/gdb.gdb/selftest.exp b/gdb/testsuite/gdb.gdb/selftest.exp
index 91142fe..cd066f4 100644
--- a/gdb/testsuite/gdb.gdb/selftest.exp
+++ b/gdb/testsuite/gdb.gdb/selftest.exp
@@ -459,15 +459,6 @@ proc test_with_self { executable } {
 	-re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
 	    pass "$description"
 	}
-	-re ".*$gdb_prompt $" {
-	    # On the alpha, we hit the infamous problem about gdb
-	    # being unable to get the frame pointer (mentioned in
-	    # gdb/README).  As it is intermittent, there is no way to
-	    # XFAIL it which will give us an XPASS if the problem goes
-	    # away.
-	    setup_xfail "alpha*-*-osf*"
-	    fail "$description"
-	}
     }
 
 
diff --git a/gdb/testsuite/gdb.hp/gdb.base-hp/callfwmall.exp b/gdb/testsuite/gdb.hp/gdb.base-hp/callfwmall.exp
index 75d25c8..a7f0ed4 100644
--- a/gdb/testsuite/gdb.hp/gdb.base-hp/callfwmall.exp
+++ b/gdb/testsuite/gdb.hp/gdb.base-hp/callfwmall.exp
@@ -208,7 +208,7 @@ proc do_function_calls {} {
 	if $prototypes then {
 	    setup_xfail "sparc-*-*" "mips*-*-*" 5318
 	    if {!$gcc_compiled} then {
-		setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
+		setup_xfail "i*86-*-sysv4*" 5318
 	    }
 	}
 	gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
diff --git a/gdb/testsuite/gdb.mi/non-stop.c b/gdb/testsuite/gdb.mi/non-stop.c
index 67b68aa..79ec562 100644
--- a/gdb/testsuite/gdb.mi/non-stop.c
+++ b/gdb/testsuite/gdb.mi/non-stop.c
@@ -20,11 +20,11 @@
 #include <stdlib.h>
 #include <pthread.h>
 
-/* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
+/* Under HPUX 10, the second arg of pthread_create
    is prototyped to be just a "pthread_attr_t", while under Solaris it
    is a "pthread_attr_t *".  Arg! */
 
-#if defined (__osf__) || defined (__hpux__)
+#if defined (__hpux__)
 #define PTHREAD_CREATE_ARG2(arg) arg
 #define PTHREAD_CREATE_NULL_ARG2 null_attr
 static pthread_attr_t null_attr;
diff --git a/gdb/testsuite/gdb.mi/pthreads.c b/gdb/testsuite/gdb.mi/pthreads.c
index d6cb897..933b31a 100644
--- a/gdb/testsuite/gdb.mi/pthreads.c
+++ b/gdb/testsuite/gdb.mi/pthreads.c
@@ -24,11 +24,11 @@
 #include <stdlib.h>
 #include <pthread.h>
 
-/* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
+/* Under HPUX 10, the second arg of pthread_create
    is prototyped to be just a "pthread_attr_t", while under Solaris it
    is a "pthread_attr_t *".  Arg! */
 
-#if defined (__osf__) || defined (__hpux__)
+#if defined (__hpux__)
 #define PTHREAD_CREATE_ARG2(arg) arg
 #define PTHREAD_CREATE_NULL_ARG2 null_attr
 static pthread_attr_t null_attr;
diff --git a/gdb/testsuite/gdb.reverse/sigall-precsave.exp b/gdb/testsuite/gdb.reverse/sigall-precsave.exp
index 4a4695e..dcae868 100644
--- a/gdb/testsuite/gdb.reverse/sigall-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/sigall-precsave.exp
@@ -65,17 +65,6 @@ proc test_one_sig {nextsig} {
 	    }
 	}
     }
-    if [ istarget "alpha-dec-osf3*" ] then {
-	# OSF/1-3.x is unable to continue with a job control stop signal.
-	# The inferior remains stopped without an event of interest
-	# and GDB waits forever for the inferior to stop on an event
-	# of interest. Work around the kernel bug.
-	if { $thissig == "TSTP" || $thissig == "TTIN" || $thissig == "TTOU" } {
-	    setup_xfail "alpha-dec-osf3*"
-	    fail "cannot continue from signal $thissig"
-	    set need_another_continue 0
-	}
-    }
 
     if $need_another_continue then {
 	if { $thissig == "URG" } {
diff --git a/gdb/testsuite/gdb.reverse/sigall-reverse.exp b/gdb/testsuite/gdb.reverse/sigall-reverse.exp
index fffc94e..0194ba4 100644
--- a/gdb/testsuite/gdb.reverse/sigall-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/sigall-reverse.exp
@@ -64,17 +64,6 @@ proc test_one_sig {nextsig} {
 	    }
 	}
     }
-    if [ istarget "alpha-dec-osf3*" ] then {
-	# OSF/1-3.x is unable to continue with a job control stop signal.
-	# The inferior remains stopped without an event of interest
-	# and GDB waits forever for the inferior to stop on an event
-	# of interest. Work around the kernel bug.
-	if { $thissig == "TSTP" || $thissig == "TTIN" || $thissig == "TTOU" } {
-	    setup_xfail "alpha-dec-osf3*"
-	    fail "cannot continue from signal $thissig"
-	    set need_another_continue 0
-	}
-    }
 
     if $need_another_continue then {
 	if { $thissig == "URG" } {
diff --git a/gdb/testsuite/gdb.threads/pthreads.c b/gdb/testsuite/gdb.threads/pthreads.c
index 0bfc618..ac0f133 100644
--- a/gdb/testsuite/gdb.threads/pthreads.c
+++ b/gdb/testsuite/gdb.threads/pthreads.c
@@ -23,11 +23,11 @@
 #include <stdlib.h>
 #include <pthread.h>
 
-/* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
+/* Under HPUX 10, the second arg of pthread_create
    is prototyped to be just a "pthread_attr_t", while under Solaris it
    is a "pthread_attr_t *".  Arg! */
 
-#if defined (__osf__) || defined (__hpux__)
+#if defined (__hpux__)
 #define PTHREAD_CREATE_ARG2(arg) arg
 #define PTHREAD_CREATE_NULL_ARG2 null_attr
 static pthread_attr_t null_attr;
@@ -124,13 +124,11 @@ main(argc, argv)
 
   foo (1, 2, 3);
 
-#ifndef __osf__
   if (pthread_attr_init (&attr))
     {
       perror ("pthread_attr_init 1");
       exit (1);
     }
-#endif
 
 #ifdef PTHREAD_SCOPE_SYSTEM
   if (pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM))
diff --git a/gdb/testsuite/gdb.threads/pthreads.exp b/gdb/testsuite/gdb.threads/pthreads.exp
index 4900e14..990dfaa 100644
--- a/gdb/testsuite/gdb.threads/pthreads.exp
+++ b/gdb/testsuite/gdb.threads/pthreads.exp
@@ -266,9 +266,7 @@ proc check_backtraces {} {
     }
 }
 
-setup_xfail "alpha-*-osf*"
 if [runto_main] then {
-    clear_xfail "alpha-*-osf*"
     if [test_startup] then {
 	if [check_control_c] then {
 	    warning "Could not stop child with ^C; skipping rest of tests.\n"
@@ -277,4 +275,3 @@ if [runto_main] then {
 	check_backtraces
     }
 }
-clear_xfail "alpha-*-osf*"