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From df2e44cd4a35c0cbba528e1d5821d5cd14cb7a87 Mon Sep 17 00:00:00 2001
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From: Serhei Makarov <smakarov@redhat.com>
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Date: Mon, 1 Oct 2018 15:39:00 -0400
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Subject: [PATCH 03/32] stapbpf assembler WIP #2 :: testcases (no driver so
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far)
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---
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testsuite/systemtap.bpf/asm_tests/branch.stp | 22 ++++++++++++++++++++++
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testsuite/systemtap.bpf/asm_tests/err_token.stp | 21 +++++++++++++++++++++
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testsuite/systemtap.bpf/asm_tests/leniency.stp | 17 +++++++++++++++++
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testsuite/systemtap.bpf/asm_tests/simple.stp | 11 +++++++++++
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4 files changed, 71 insertions(+)
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create mode 100644 testsuite/systemtap.bpf/asm_tests/branch.stp
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create mode 100644 testsuite/systemtap.bpf/asm_tests/err_token.stp
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create mode 100644 testsuite/systemtap.bpf/asm_tests/leniency.stp
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create mode 100644 testsuite/systemtap.bpf/asm_tests/simple.stp
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diff --git a/testsuite/systemtap.bpf/asm_tests/branch.stp b/testsuite/systemtap.bpf/asm_tests/branch.stp
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new file mode 100644
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index 000000000..aa22bf195
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--- /dev/null
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+++ b/testsuite/systemtap.bpf/asm_tests/branch.stp
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@@ -0,0 +1,22 @@
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+function foo:long (x:long) %{ /* bpf */ /* pure */
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+ /* if x <= 10 then 50 else 100 */
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+ 0xd5, $x, -, _bar, 10; /* jsle $x, 10, _bar */
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+ 0xb7, $$, -, -, 100; /* mov $$, 100 */
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+ 0x05, -, -, _done, -; /* ja _done; */
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+ label, _bar;
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+ 0xb7, $$, -, -, 50; /* mov $$, 50 */
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+ label, _done;
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+ /* 0xbf, $$, $$, -, -; /* dummy op */
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+%}
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+
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+function bar:long (x:long) {
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+ if (x <= 10) return 50 else return 100
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+}
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+
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+probe begin {
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+ printf("foo(1)=%d should be %d\n", foo(1), bar(1))
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+ printf("foo(8)=%d should be %d\n", foo(8), bar(8))
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+ printf("foo(15)=%d should be %d\n", foo(15), bar(15))
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+ exit()
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+}
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+
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diff --git a/testsuite/systemtap.bpf/asm_tests/err_token.stp b/testsuite/systemtap.bpf/asm_tests/err_token.stp
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new file mode 100644
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index 000000000..b9f8bd866
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--- /dev/null
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+++ b/testsuite/systemtap.bpf/asm_tests/err_token.stp
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@@ -0,0 +1,21 @@
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+function foo:long (x:long) %{ /* bpf */ /* pure */
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+ /* if x <= 10 then 50 else 100 */
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+ 0xd5, $x, -, _bar, 10; /* jsle $x, 10, _bar */
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+ 0xb7, $$, -, -, 100; /* mov $$, 100 */
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+ florb, -, -, _done, -; /* TRIGGER ERROR */
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+ label, _bar;
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+ 0xb7, $$, -, -, 50; /* mov $$, 50 */
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+ label, _done;
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+ /* 0xbf, $$, $$, -, -; /* dummy op */
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+%}
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+
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+function bar:long (x:long) {
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+ if (x <= 10) return 50 else return 100
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+}
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+
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+probe begin {
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+ printf("foo(1)=%d should be %d\n", foo(1), bar(1))
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+ printf("foo(8)=%d should be %d\n", foo(8), bar(8))
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+ printf("foo(15)=%d should be %d\n", foo(15), bar(15))
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+ exit()
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+}
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diff --git a/testsuite/systemtap.bpf/asm_tests/leniency.stp b/testsuite/systemtap.bpf/asm_tests/leniency.stp
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new file mode 100644
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index 000000000..939061158
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--- /dev/null
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+++ b/testsuite/systemtap.bpf/asm_tests/leniency.stp
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@@ -0,0 +1,17 @@
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+function foo:long (x:long) %{ /* bpf */ /* pure */
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+ /* if x < 10 then 17 else 16 */
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+ 0xa5, $x, -, _bar, 10; /* jlt $x, 10, _bar */
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+ 0xb7, $this is an "!!ide\nt!!" believe it or not, -, -, 16; /* mov $t, 0 */
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+ 0xbf, $$, $thisisan"!!ide\nt!!"believeitornot, -, -; /* mov $$, $t */
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+ 0x05, -, -, _done, -; /* ja _done; */
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+ label, _bar;
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+ 0xb7, $$, -, -, 17; /* mov $$, 1 */
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+ label, _done;
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+%}
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+
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+probe begin {
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+ printf("foo(1)=%d\n", foo(1))
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+ printf("foo(15)=%d\n", foo(15))
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+ exit()
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+}
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+
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diff --git a/testsuite/systemtap.bpf/asm_tests/simple.stp b/testsuite/systemtap.bpf/asm_tests/simple.stp
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new file mode 100644
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index 000000000..693219d15
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--- /dev/null
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+++ b/testsuite/systemtap.bpf/asm_tests/simple.stp
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@@ -0,0 +1,11 @@
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+function foo:long (x:long) %{ /* bpf */ /* pure */
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+ /* compute 100-x */
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+ 0xb7, $$, -, -, 100; /* mov $$, ee */
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+ 0x1f, $$, $x, -, -; /* sub $$, $x */
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+%}
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+
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+probe begin {
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+ printf("foo(1)=%d\n", foo(1))
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+ printf("foo(15)=%d\n", foo(15))
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+ exit()
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+}
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--
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2.14.5
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