From FEDORA_PATCHES Mon Sep 17 00:00:00 2001

From: Fedora GDB patches <invalid@email.com>

Date: Fri, 27 Oct 2017 21:07:50 +0200

Subject: gdb-lineno-makeup-test.patch

;; Testcase for "Do not make up line information" fix by Daniel Jacobowitz.

;;=fedoratest

New testcase for:

https://bugzilla.redhat.com/show_bug.cgi?id=466222

	(for the first / customer recommended fix)

and the upstream fix:

http://sourceware.org/ml/gdb-patches/2006-11/msg00253.html

	[rfc] Do not make up line information

http://sourceware.org/ml/gdb-cvs/2006-11/msg00127.html

diff --git a/gdb/testsuite/gdb.base/lineno-makeup-func.c b/gdb/testsuite/gdb.base/lineno-makeup-func.c

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.base/lineno-makeup-func.c

@@ -0,0 +1,21 @@

+/* This testcase is part of GDB, the GNU debugger.

+

+   Copyright 2009 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/>.  */

+

+void

+func (void)

+{

+}

diff --git a/gdb/testsuite/gdb.base/lineno-makeup.c b/gdb/testsuite/gdb.base/lineno-makeup.c

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.base/lineno-makeup.c

@@ -0,0 +1,35 @@

+/* This testcase is part of GDB, the GNU debugger.

+

+   Copyright 2009 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/>.  */

+

+/* DW_AT_low_pc-DW_AT_high_pc should cover the function without line number

+   information (.debug_line) so we cannot use an external object file.

+   

+   It must not be just a label as it would alias on the next function even for

+   correct GDB.  Therefore some stub data must be placed there.

+   

+   We need to provide a real stub function body as at least s390

+   (s390_analyze_prologue) would skip the whole body till reaching `main'.  */

+

+extern void func (void);

+asm ("func: .incbin \"" BINFILENAME "\"");

+

+int

+main (void)

+{

+  func ();

+  return 0;

+}

diff --git a/gdb/testsuite/gdb.base/lineno-makeup.exp b/gdb/testsuite/gdb.base/lineno-makeup.exp

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.base/lineno-makeup.exp

@@ -0,0 +1,78 @@

+# Copyright 2009 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/>.

+

+set testfile "lineno-makeup"

+set srcfuncfile ${testfile}-func.c

+set srcfile ${testfile}.c

+set objfuncfile [standard_output_file ${testfile}-func.o]

+set binfuncfile [standard_output_file ${testfile}-func.bin]

+set binfile [standard_output_file ${testfile}]

+

+if { [gdb_compile "${srcdir}/${subdir}/${srcfuncfile}" "${objfuncfile}" object {}] != "" } {

+    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."

+}

+

+set objcopy [catch "exec objcopy -O binary --only-section .text ${objfuncfile} ${binfuncfile}" output]

+verbose -log "objcopy=$objcopy: $output"

+if { $objcopy != 0 } {

+    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."

+}

+set binfuncfilesize [file size $binfuncfile]

+verbose -log "file size $binfuncfile = $binfuncfilesize"

+

+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug additional_flags=-DBINFILENAME=\"$binfuncfile\"]] != "" } {

+    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."

+}

+

+gdb_exit

+gdb_start

+gdb_reinitialize_dir $srcdir/$subdir

+gdb_load ${binfile}

+

+set b_addr ""

+set test "break func"

+gdb_test_multiple $test $test {

+    -re "Breakpoint \[0-9\]+ at (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {

+	set b_addr $expect_out(1,string)

+	pass $test

+    }

+    -re "Breakpoint \[0-9\]+ at (0x\[0-9a-f\]+): .*\r\n$gdb_prompt $" {

+	set b_addr $expect_out(1,string)

+	fail $test

+    }

+}

+verbose -log "b_addr=<$b_addr>"

+

+set p_addr ""

+set test "print func"

+gdb_test_multiple $test $test {

+    -re "\\$\[0-9\]+ = {<text variable, no debug info>} (0x\[0-9a-f\]+) <func>\r\n$gdb_prompt $" {

+	set p_addr $expect_out(1,string)

+	pass $test

+    }

+}

+verbose -log "p_addr=<$p_addr>"

+

+set test "break address belongs to func"

+if {$b_addr == $p_addr} {

+    pass "$test (exact match)"

+} else {

+    set skip [expr $b_addr - $p_addr]

+    if {$skip > 0 && $skip < $binfuncfilesize} {

+	pass "$test (prologue skip by $skip bytes)"

+    } else {

+	fail $test

+    }

+}