Add tests of the linker's --errror-execstack and --error-rwx-segments options

ld/testsuite/ld-elf/elf.exp

@@ -285,6 +285,13 @@ if {   [istarget *-*-*linux*]
 	    {pr29072-a.s} \
 	    {{ld pr29072.a.warn}} \
 	    "pr29072-a.exe"] \
+	[list "Test --error-execstack with an executable .note.GNU-stack" \
+	    "--warn-execstack --error-execstack" \
+	    "" \
+	    "" \
+	    {pr29072-a.s} \
+	     {{ld gnu_execstack.err}} \
+	    "gnu_execstack.exe"] \
 	[list "PR 29072 (warn about -z execstack)" \
 	    "-z execstack --warn-execstack --no-error-execstack" \
 	    "" \
@@ -292,6 +299,13 @@ if {   [istarget *-*-*linux*]
 	    {stack.s} \
 	     {{ld pr29072.c.warn}} \
 	    "pr29072-c.exe"] \
+	[list "Test --error-execstack with -z execstack" \
+	    "-z execstack --warn-execstack --error-execstack" \
+	    "" \
+	    "" \
+	    {stack.s} \
+	     {{ld z_execstack.err}} \
+	    "execstack.exe"] \
 	[list "PR ld/29072 (suppress warnings about executable stack)" \
 	    "-e 0 --no-warn-execstack" \
 	    "" \
@@ -299,13 +313,20 @@ if {   [istarget *-*-*linux*]
 	    {pr29072-a.s} \
 	    {} \
 	    "pr29072-d.exe"] \
-	[list "Ensure that a warning issued when creating a segment with RWX permissions" \
+	[list "Ensure that a warning is issued when creating a segment with RWX permissions" \
 	    "-e 0 -Tnobits-1.t --warn-rwx-segments --no-error-rwx-segments" \
 	    "" \
 	    "" \
 	    {nobits-1.s} \
 	     {{ld rwx-segments-1.l}} \
 	    "rwx-segments-1.exe"] \
+	[list "Ensure that a error can be issued when creating a segment with RWX permissions" \
+	    "-e 0 -Tnobits-1.t --warn-rwx-segments --error-rwx-segments" \
+	    "" \
+	    "" \
+	    {nobits-1.s} \
+	     {{ld rwx-segments-3.err}} \
+	    "rwx-segments-3.exe"] \
 	[list "Ensure that a warning issued when creating a TLS segment with execute permission" \
 	    "-e 0 -T rwx-segments-2.t --warn-rwx-segments --no-error-rwx-segments" \
 	    "" \
@@ -313,6 +334,13 @@ if {   [istarget *-*-*linux*]
 	    {size-2.s} \
 	     {{ld rwx-segments-2.l}} \
 	    "rwx-segments-2.exe"] \
+	[list "Ensure that an error cn be issued when creating a TLS segment with execute permission" \
+	    "-e 0 -T rwx-segments-2.t --warn-rwx-segments --error-rwx-segments" \
+	    "" \
+	    "" \
+	    {size-2.s} \
+	     {{ld rwx-segments-4.err}} \
+	    "rwx-segments-4.exe"] \
 	[list "Ensure that the RWX warning can be suppressed" \
 	    "-e 0 -Tnobits-1.t --no-warn-rwx-segments" \
 	    "" \
@@ -334,6 +362,16 @@ if {   [istarget *-*-*linux*]
 	    {{ld pr29072.b.warn}} \
 	    "pr29072-b.exe"] \
 	]
+
+      run_ld_link_tests [list \
+	[list "error when .note.GNU-stack is absent" \
+	 "-e 0 -z stack-size=0x123400 --warn-execstack --error-execstack" \
+	 "" \
+	 "" \
+	 {pr29072-b.s} \
+	 {{ld missing-execstack.err}} \
+	 "missing-execstack.exe"] \
+	]
     } else {
 	run_ld_link_tests [list \
 	   [list "PR ld/29072 (ignore absent .note.GNU-stack)" \

ld/testsuite/ld-elf/gnu_execstack.err

@@ -0,0 +1,3 @@
+#...
+.*: error: .*: is triggering the generation of an executable stack \(because it has an executable .note.GNU-stack section\)
+#...

ld/testsuite/ld-elf/missing-execstack.err

@@ -0,0 +1,3 @@
+#...
+.*: error: .*\.o: is triggering the generation of an executable stack because it does not have a .note.GNU-stack section
+#...

ld/testsuite/ld-elf/rwx-segments-3.err

@@ -0,0 +1,3 @@
+#...
+.* error: .* has a LOAD segment with RWX permissions
+#...

ld/testsuite/ld-elf/rwx-segments-4.err

@@ -0,0 +1,3 @@
+#...
+.*: error: .* has a TLS segment with execute permission
+#...

ld/testsuite/ld-elf/z_execstack.err

@@ -0,0 +1,4 @@
+#...
+.*: error: creating an executable stack because of -z execstack command line option
+#...
+