1 files changed, 106 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-prologue-end.exp b/gdb/testsuite/gdb.dwarf2/dw2-prologue-end.exp
new file mode 100644
index 00000000000..9ce97fc1f26
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw2-prologue-end.exp
@@ -0,0 +1,106 @@
+# Copyright 2022 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Check that GDB can honor the prologue_end flag the compiler can place
+# in the line-table data.
+
+load_lib dwarf.exp
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+if {![dwarf2_support]} {
+    return 0
+}
+
+standard_testfile .c .S
+
+set asm_file [standard_output_file $srcfile2]
+Dwarf::assemble $asm_file {
+    global srcdir subdir srcfile srcfile2
+    declare_labels lines_label
+
+    get_func_info main
+
+    cu {} {
+	compile_unit {
+	    {language @DW_LANG_C}
+	    {name dw2-prologue-end.c}
+	    {stmt_list ${lines_label} DW_FORM_sec_offset}
+	} {
+	    subprogram {
+		{external 1 flag}
+		{name main}
+		{low_pc $main_start addr}
+		{high_pc "$main_start + $main_len" addr}
+	    }
+	}
+    }
+
+    lines {version 5} lines_label {
+	set diridx [include_dir "${srcdir}/${subdir}"]
+	file_name "$srcfile" $diridx
+
+	program {
+	    DW_LNS_set_file $diridx
+	    DW_LNE_set_address $main_start
+	    line [gdb_get_line_number "main prologue"]
+	    DW_LNS_copy
+
+	    DW_LNE_set_address main_label
+	    line [gdb_get_line_number "main assign m"]
+	    DW_LNS_copy
+
+	    DW_LNE_set_address main_assign_n
+	    line [gdb_get_line_number "main assign n"]
+	    DW_LNS_copy
+
+	    DW_LNE_set_address main_end_prologue
+	    line [gdb_get_line_number "main assign o"]
+	    DW_LNS_set_prologue_end
+	    DW_LNS_copy
+
+	    DW_LNE_set_address main_end
+	    line [gdb_get_line_number "main end"]
+	    DW_LNS_copy
+
+	    DW_LNE_end_sequence
+	}
+    }
+}
+
+if { [prepare_for_testing "failed to prepare" ${testfile} \
+	  [list $srcfile $asm_file] {nodebug}] } {
+    return -1
+}
+
+if ![runto_main] {
+    return -1
+}
+
+set prologue_end_line [gdb_get_line_number "main assign o"]
+gdb_test "frame" ".*main \\\(\\\) at \[^\r\n\]*:$prologue_end_line\r\n.*"
+
+with_test_prefix "ignore-prologue-end" {
+    clean_restart $binfile
+    gdb_test_no_output "maintenance set ignore-prologue-end-flag on"
+
+    if ![runto_main] {
+	return -1
+    }
+
+    # If we ignore the prologue-end flag, we should stop at the first statement
+    # of main which assigns m.
+    set prologue_end_line [gdb_get_line_number "main assign m"]
+    gdb_test "frame" ".*main \\\(\\\) at \[^\r\n\]*:$prologue_end_line\r\n.*"
+}