[pushed] [gdb/tui] Fix gdb.tui/tui-layout-asm-short-prog.exp

[Tom de Vries <tdevries@suse.de>]

Recent commit ("[gdb/tui] Improve section handling in
tui_find_backward_disassembly_start_address") breaks test-case
gdb.tui/tui-layout-asm-short-prog.exp on aarch64-linux, because it expects not
being able to disassemble instructions before .text.

It's easy enough to fix that using:
...
-Term::command "- 15"
+Term::command "- 4"
...
but AFAIU, that breaks the purpose of the test-case.

So instead, used objcopy --remove-section=.note.* to strip the sections
before .text.
---
 gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.exp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.exp b/gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.exp
index b3dd72ce1ce..6a668ad16d0 100644
--- a/gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.exp
+++ b/gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.exp
@@ -30,6 +30,18 @@ if { [build_executable "failed to prepare" $testfile $srcfile $opts] == -1 } {
     return
 }
 
+# This test-case relies on not being able to scroll to before _start.  Strip
+# the notes to make sure there are no sections before start.
+
+set objcopy_program [gdb_find_objcopy]
+set res \
+    [remote_exec host \
+	 "$objcopy_program --remove-section=.note.* $binfile"]
+if {[lindex $res 0] != 0} {
+    unsupported "Couldn't strip notes"
+    return
+}
+
 Term::clean_restart 24 80 $testfile
 if {![Term::prepare_for_tui]} {
     unsupported "TUI not supported"

base-commit: e26e14a40e9be83fa37a2c42be93404415facf80
-- 
2.51.0