* [PATCH v1 36/36] Guile extension language: section script tests
@ 2013-12-24 19:05 Doug Evans
0 siblings, 0 replies; only message in thread
From: Doug Evans @ 2013-12-24 19:05 UTC (permalink / raw)
To: gdb-patches
This patch adds tests for using the .debug_gdb_scripts section.
2013-12-24 Doug Evans <xdje42@gmail.com>
testsuite/
* gdb.guile/scm-section-script.c: New file.
* gdb.guile/scm-section-script.exp: New file.
* gdb.guile/scm-section-script.scm: New file.
diff --git a/gdb/testsuite/gdb.guile/scm-section-script.c b/gdb/testsuite/gdb.guile/scm-section-script.c
new file mode 100644
index 0000000..75e2e2d
--- /dev/null
+++ b/gdb/testsuite/gdb.guile/scm-section-script.c
@@ -0,0 +1,55 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2010-2013 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/>. */
+
+#include "symcat.h"
+#include "gdb/section-scripts.h"
+
+/* Put the path to the pretty-printer script in .debug_gdb_scripts so
+ gdb will automagically loaded it. */
+
+#define DEFINE_GDB_SCRIPT(script_name) \
+ asm("\
+.pushsection \".debug_gdb_scripts\", \"MS\",@progbits,1\n\
+.byte " XSTRING (SECTION_SCRIPT_ID_SCHEME_FILE) "\n\
+.asciz \"" script_name "\"\n\
+.popsection \n\
+");
+
+DEFINE_GDB_SCRIPT (SCRIPT_FILE)
+
+struct ss
+{
+ int a;
+ int b;
+};
+
+void
+init_ss (struct ss *s, int a, int b)
+{
+ s->a = a;
+ s->b = b;
+}
+
+int
+main ()
+{
+ struct ss ss;
+
+ init_ss (&ss, 1, 2);
+
+ return 0; /* break to inspect struct and union */
+}
diff --git a/gdb/testsuite/gdb.guile/scm-section-script.exp b/gdb/testsuite/gdb.guile/scm-section-script.exp
new file mode 100644
index 0000000..02152d0
--- /dev/null
+++ b/gdb/testsuite/gdb.guile/scm-section-script.exp
@@ -0,0 +1,80 @@
+# Copyright (C) 2010-2013 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/>.
+
+# This file is part of the GDB testsuite. It tests automagic loading of
+# scripts specified in the .debug_gdb_scripts section.
+
+# This test can only be run on targets which support ELF and use gas.
+# For now pick a sampling of likely targets.
+if {![istarget *-*-linux*]
+ && ![istarget *-*-gnu*]
+ && ![istarget *-*-elf*]
+ && ![istarget *-*-openbsd*]
+ && ![istarget arm*-*-eabi*]
+ && ![istarget arm*-*-symbianelf*]
+ && ![istarget powerpc-*-eabi*]} {
+ verbose "Skipping scm-section-script.exp because of lack of support."
+ return
+}
+
+load_lib gdb-guile.exp
+
+standard_testfile
+
+# Make this available to gdb before the program starts, it is
+# automagically loaded by gdb.
+# Give the file a new name so we don't clobber the real one if
+# objfile == srcdir.
+# We also need to do this before compiling the program because the name
+# of the script file is encoded in the binary.
+# FIXME: Can we get gdb_remote_download to call standard_output_file for us?
+set remote_guile_file [gdb_remote_download host \
+ ${srcdir}/${subdir}/${testfile}.scm \
+ ${subdir}/t-${testfile}.scm]
+
+if {[build_executable $testfile.exp $testfile $srcfile \
+ [list debug "additional_flags=-I${srcdir}/../../include -DSCRIPT_FILE=\"$remote_guile_file\""]] == -1} {
+ return
+}
+
+# Start with a fresh gdb.
+gdb_exit
+gdb_start
+
+# Skip all tests if Guile scripting is not enabled.
+if { [skip_guile_tests] } { continue }
+
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_test_no_output "set auto-load safe-path ${remote_guile_file}" \
+ "set auto-load safe-path"
+gdb_load ${binfile}
+
+# Verify gdb loaded the script.
+gdb_test "info auto-load guile-scripts" "Yes.*${testfile}.scm.*"
+# Again, with a regexp this time.
+gdb_test "info auto-load guile-scripts ${testfile}" "Yes.*${testfile}.scm.*"
+# Again, with a regexp that matches no scripts.
+gdb_test "info auto-load guile-scripts no-script-matches-this" \
+ "No auto-load scripts matching no-script-matches-this."
+
+if ![gdb_guile_runto_main] {
+ return
+}
+
+gdb_test "b [gdb_get_line_number {break to inspect} ${testfile}.c ]" \
+ ".*Breakpoint.*"
+gdb_test "continue" ".*Breakpoint.*"
+
+gdb_test "print ss" " = a=<1> b=<2>"
diff --git a/gdb/testsuite/gdb.guile/scm-section-script.scm b/gdb/testsuite/gdb.guile/scm-section-script.scm
new file mode 100644
index 0000000..6f4b34c
--- /dev/null
+++ b/gdb/testsuite/gdb.guile/scm-section-script.scm
@@ -0,0 +1,55 @@
+;; Copyright (C) 2010-2013 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/>.
+
+;; This file is part of the GDB testsuite.
+
+(use-modules (gdb) (gdb printing))
+
+(define (make-pp_ss-printer val)
+ (make-pretty-printer-worker
+ #f
+ (lambda (printer)
+ (let ((a (value-field val "a"))
+ (b (value-field val "b")))
+ (format #f "a=<~A> b=<~A>" a b)))
+ #f))
+
+(define (get-type-for-printing val)
+ "Return type of val, stripping away typedefs, etc."
+ (let ((type (value-type val)))
+ (if (= (type-code type) TYPE_CODE_REF)
+ (set! type (type-target type)))
+ (type-strip-typedefs (type-unqualified type))))
+
+(define (make-pretty-printer-dict)
+ (let ((dict (make-hash-table)))
+ (hash-set! dict "struct ss" make-pp_ss-printer)
+ (hash-set! dict "ss" make-pp_ss-printer)
+ dict))
+
+(define *pretty-printer*
+ (make-pretty-printer
+ "pretty-printer-test"
+ (let ((pretty-printers-dict (make-pretty-printer-dict)))
+ (lambda (matcher val)
+ "Look-up and return a pretty-printer that can print val."
+ (let ((type (get-type-for-printing val)))
+ (let ((typename (type-tag type)))
+ (if typename
+ (let ((printer-maker (hash-ref pretty-printers-dict typename)))
+ (and printer-maker (printer-maker val)))
+ #f)))))))
+
+(append-pretty-printer! #f *pretty-printer*)
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