Add i386 frame pointer unwinder.

Add a simple i386_unwind.c frame pointer unwinder as fallback if DWARF/CFI
unwinding fails.

Signed-off-by: Mark Wielaard <[email protected]>

5 files changed, 42 insertions, 1 deletions

diff --git a/tests/ChangeLog b/tests/ChangeLog
index db71f8e3..81b5f7a2 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,12 @@
+2017-04-06  Mark Wielaard  <[email protected]>
+
+	* run-backtrace-fp-core-i386.sh: New test.
+	* backtrace.i386.fp.core.bz2: New test file.
+	* backtrace.i386.fp.exec.bz2: New testfile.
+	* Makefile.am (TESTS): Add run-backtrace-fp-core-i386.sh.
+	(EXTRA_DIST): Add run-backtrace-fp-core-i386.sh,
+	backtrace.i386.fp.core.bz2 and backtrace.i386.fp.exec.bz2.
+
 2017-02-09  Ulf Hermann  <[email protected]>
 
 	* Makefile.am: Add test for unwinding with frame pointers on x86_64
diff --git a/tests/Makefile.am b/tests/Makefile.am
index b0db19f0..2c82bfd8 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -117,7 +117,8 @@ TESTS = run-arextract.sh run-arsymtest.sh newfile test-nlist \
 	run-backtrace-native-core-biarch.sh run-backtrace-core-x86_64.sh \
 	run-backtrace-fp-core-x86_64.sh \
 	run-backtrace-core-x32.sh \
-	run-backtrace-core-i386.sh run-backtrace-core-ppc.sh \
+	run-backtrace-core-i386.sh run-backtrace-fp-core-i386.sh \
+	run-backtrace-core-ppc.sh \
 	run-backtrace-core-s390x.sh run-backtrace-core-s390.sh \
 	run-backtrace-core-aarch64.sh run-backtrace-core-sparc.sh \
 	run-backtrace-demangle.sh run-stack-d-test.sh run-stack-i-test.sh \
@@ -297,6 +298,8 @@ EXTRA_DIST = run-arextract.sh run-arsymtest.sh \
 	     run-backtrace-fp-core-x86_64.sh \
 	     run-backtrace-core-x32.sh \
 	     backtrace-subr.sh backtrace.i386.core.bz2 backtrace.i386.exec.bz2 \
+	     run-backtrace-fp-core-i386.sh \
+	     backtrace.i386.fp.core.bz2 backtrace.i386.fp.exec.bz2 \
 	     backtrace.x86_64.core.bz2 backtrace.x86_64.exec.bz2 \
 	     backtrace.x86_64.fp.core.bz2 backtrace.x86_64.fp.exec.bz2 \
 	     backtrace.ppc.core.bz2 backtrace.ppc.exec.bz2 \
diff --git a/tests/backtrace.i386.fp.core.bz2 b/tests/backtrace.i386.fp.core.bz2
new file mode 100644
index 00000000..3c49e247
--- /dev/null
+++ b/tests/backtrace.i386.fp.core.bz2
diff --git a/tests/backtrace.i386.fp.exec.bz2 b/tests/backtrace.i386.fp.exec.bz2
new file mode 100755
index 00000000..cb4d32ef
--- /dev/null
+++ b/tests/backtrace.i386.fp.exec.bz2
diff --git a/tests/run-backtrace-fp-core-i386.sh b/tests/run-backtrace-fp-core-i386.sh
new file mode 100755
index 00000000..c58ff532
--- /dev/null
+++ b/tests/run-backtrace-fp-core-i386.sh
@@ -0,0 +1,29 @@
+#! /bin/bash
+# Copyright (C) 2017 Red Hat, Inc.
+# This file is part of elfutils.
+#
+# This file 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.
+#
+# elfutils 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/>.
+
+. $srcdir/backtrace-subr.sh
+
+# The binary is generated by compiling backtrace-child without unwind
+# information, but with -fno-omit-frame-pointer.
+#
+# gcc -static -O2 -fno-omit-frame-pointer -fno-asynchronous-unwind-tables \
+#     -D_GNU_SOURCE -pthread -o tests/backtrace.i386.fp.exec -I. -Ilib \
+#     tests/backtrace-child.c
+#
+# The core is generated by calling tests/backtrace.i386.fp.exec --gencore
+
+check_core i386.fp