Delete IRIX support

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

This doesn't touch procfs.c as that'd be a harder excision,
potentially affecting Solaris.

mips-tdep.c is left alone.  E.g., I didn't delete the GDB_OSABI_IRIX
enum value, nor references to it in mips-tdep.c.  Some comments
mentioning IRIX ABIs may still be relevant and I wouldn't know what to
do with them. in That can always be done on a separate pass,
preferably by someone who can test on MIPS.

I didn't remove a reference to IRIX 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=mips-sgi-irix6 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 *** Configuration mips-sgi-irix6 is obsolete.
 *** Support has been REMOVED.
 make[1]: *** [configure-gdb] Error 1
 make[1]: Leaving directory `/home/pedro/gdb/mygit/build-irix'
 make: *** [all] Error 2

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

	* Makefile.in (ALL_TARGET_OBS): Remove mips-irix-tdep.o and solib-irix.o.
	(ALLDEPFILES): Remove mips-irix-tdep.c and solib-irix.c.
	(HFILES_NO_SRCDIR): Remove solib-irix.h.
	* NEWS: Mention that support for mips-sgi-irix5* mips-sgi-irix6*
	and been removed.
	* config/mips/irix5.mh, config/mips/irix6.mh: Delete files.
	* configure.ac: Remove references to IRIX.
	* configure.host: Add *-*-irix* to the obsolete hosts section.
	Remove all other references to irix.
	* irix5-nat.c, mips-irix-tdep.c, solib-irix.c, solib-irix.h:
	Delete files.

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

	* gdb.base/bigcore.exp: Remove references to IRIX.
	* gdb.base/funcargs.exp: Likewise.
	* gdb.base/interrupt.exp: Likewise.
	* gdb.base/mips_pro.exp: Likewise.
	* gdb.base/nodebug.exp: Likewise.
	* gdb.base/setvar.exp: Likewise.
	* lib/gdb.exp (gdb_compile_shlib): Remove mips-sgi-irix* case.

1 files changed, 2 insertions, 8 deletions

diff --git a/gdb/testsuite/gdb.base/funcargs.exp b/gdb/testsuite/gdb.base/funcargs.exp
index 5cbd789df0d..aa88072a7c3 100644
--- a/gdb/testsuite/gdb.base/funcargs.exp
+++ b/gdb/testsuite/gdb.base/funcargs.exp
@@ -158,7 +158,7 @@ proc float_and_integral_args {} {
 
     # Run; should stop at call2a and print actual arguments.
 
-    if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" "mips-sgi-irix5*" }
+    if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }
     gdb_run_cmd
     set test "run to call2a"
     gdb_test_multiple "" $test {
@@ -181,7 +181,6 @@ proc float_and_integral_args {} {
     gdb_test "print d2" ".* = 5" "print d2 after run to call2a"
 
     setup_xfail "rs6000-*-*"
-    if {!$gcc_compiled} then { setup_xfail "mips-sgi-irix*" }
     # Continue; should stop at call2b and print actual arguments.
     if [gdb_test "cont" ".* call2b \\(f1=4, s=1, d1=5, i=2, f2=4, l=3, d2=5, c=97 'a'\\) .*" "continue to call2b"] {
 	gdb_suppress_tests
@@ -486,10 +485,6 @@ proc discard_and_shuffle {} {
 
     setup_xfail "rs6000-*-*"
 
-    if {!$gcc_compiled} {
-	setup_xfail "mips-sgi-irix5*"
-    }
-
     gdb_test_multiple "backtrace 100" "backtrace from call6a" {
 	-re " call6a \\(c=97 'a', s=1, i=2, l=3, f=4, d=5, uc=98 'b', us=6, ui=7, ul=8\\) .* main \\(.*\\) .*$gdb_prompt $" {
 	    pass "backtrace from call6a"
@@ -710,7 +705,7 @@ proc shuffle_round_robin {} {
     gdb_run_cmd
     gdb_test "" "Breakpoint $decimal, call7a .*" "run to call7a"
 
-    if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" "mips-sgi-irix5*" }
+    if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }
     gdb_test_multiple "backtrace 100" "backtrace from call7a" {
 	-re " call7a \\(c=97 'a', i=2, s=1, l=3, f=4, uc=98 'b', d=5, us=6, ul=8, ui=7\\) .* main \\(.*\\) .*$gdb_prompt $" {
 	    pass "backtrace from call7a"
@@ -863,7 +858,6 @@ proc shuffle_round_robin {} {
 
     gdb_continue call7k
 
-    if {!$gcc_compiled} then { setup_xfail "mips-sgi-irix*" }
     gdb_test_sequence "backtrace 100" "backtrace from call7k" {
 	"\[\r\n\]#0 .* call7k \\(c=97 'a', i=2, s=1, l=3, f=4, uc=98 'b', d=5, us=6, ul=8, ui=7\\) "
 	"\[\r\n\]#1 .* call7j \\(ui=7, c=97 'a', i=2, s=1, l=3, f=4, uc=98 'b', d=5, us=6, ul=8\\) "