Add support for BPF

Signed-off-by: Richard Henderson <[email protected]>

5 files changed, 78 insertions, 1 deletions

diff --git a/tests/ChangeLog b/tests/ChangeLog
index bcc296f1..1504d487 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,12 @@
+2016-06-28  Richard Henderson <[email protected]>
+
+	* Makefile.am (TESTS): Add run-disasm-bpf.sh, conditionally.
+	(EXTRA_DIST): Add run-disasm-bpf.sh, testfile-bpf-dis1.expect.bz2,
+	testfile-bpf-dis1.o.bz2
+	(run-disasm-bpf.sh): New file.
+	(testfile-bpf-dis1.expect.bz2): New file.
+	(testfile-bpf-dis1.o.bz2): New file.
+
 2016-02-09  Mark Wielaard  <[email protected]>
 
 	* testfile-s390x-hash-both.bz2: New testfile.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index fedcb39d..274356fb 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -148,6 +148,9 @@ endif
 if HAVE_LIBASM
 check_PROGRAMS += $(asm_TESTS)
 TESTS += $(asm_TESTS)
+if HAVE_LINUX_BPF_H
+TESTS += run-disasm-bpf.sh
+endif
 endif
 
 EXTRA_DIST = run-arextract.sh run-arsymtest.sh \
@@ -322,7 +325,9 @@ EXTRA_DIST = run-arextract.sh run-arsymtest.sh \
 	     testfile-zgabi32.bz2 testfile-zgabi64.bz2 \
 	     testfile-zgabi32be.bz2 testfile-zgabi64be.bz2 \
 	     run-elfgetchdr.sh run-elfgetzdata.sh run-elfputzdata.sh \
-	     run-zstrptr.sh run-compress-test.sh
+	     run-zstrptr.sh run-compress-test.sh \
+	     run-disasm-bpf.sh \
+	     testfile-bpf-dis1.expect.bz2 testfile-bpf-dis1.o.bz2
 
 if USE_VALGRIND
 valgrind_cmd='valgrind -q --leak-check=full --error-exitcode=1'
diff --git a/tests/run-disasm-bpf.sh b/tests/run-disasm-bpf.sh
new file mode 100755
index 00000000..8ca89d53
--- /dev/null
+++ b/tests/run-disasm-bpf.sh
@@ -0,0 +1,63 @@
+#! /bin/sh
+# Copyright (C) 2016 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/test-subr.sh
+
+# This test file is created with
+#
+# #include <linux/bpf.h>
+# #include <stdio.h>
+#
+# int main()
+# {
+#   int i;
+#
+#   printf("\t.text\n");
+#
+#   for (i = 0; i < 256; ++i)
+#     if (i == (BPF_LD | BPF_IMM | BPF_DW))
+#       printf("\t.byte\t%d, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0\n", i);
+#     else
+#       {
+#         int regs = 0;
+#         switch (BPF_CLASS(i))
+#           {
+#           case BPF_ALU:
+#           case BPF_ALU64:
+#             if (BPF_SRC(i) == BPF_X
+#                 && BPF_OP(i) != BPF_NEG
+#                 && BPF_OP(i) != BPF_END)
+#               regs = 0x21;
+#             break;
+#           case BPF_LDX:
+#           case BPF_STX:
+#             regs = 0x21;
+#             break;
+#           }
+#         printf("\t.byte\t%d, %d, 0, 0, 0, 0, 0, 0\n", i, regs);
+#       }
+#
+#   return 0;
+# }
+#
+# $ ./a.out | as -o z1.o
+# $ objcopy -j .text z1.o z2.o
+#
+# Then emacs hexl edit e_machine to 0xf7.
+
+testfiles testfile-bpf-dis1.o testfile-bpf-dis1.expect
+testrun_compare ${abs_top_builddir}/src/objdump -d testfile-bpf-dis1.o < testfile-bpf-dis1.expect
diff --git a/tests/testfile-bpf-dis1.expect.bz2 b/tests/testfile-bpf-dis1.expect.bz2
new file mode 100644
index 00000000..b4a778e0
--- /dev/null
+++ b/tests/testfile-bpf-dis1.expect.bz2
diff --git a/tests/testfile-bpf-dis1.o.bz2 b/tests/testfile-bpf-dis1.o.bz2
new file mode 100644
index 00000000..94bb612b
--- /dev/null
+++ b/tests/testfile-bpf-dis1.o.bz2