Merge commit 'origin/dwarfless'

PR 4311 - Function boundary tracing without debuginfo: Phases 1 and 2

9 files changed, 127 insertions, 0 deletions

diff --git a/testsuite/semko/nodwf01.stp b/testsuite/semko/nodwf01.stp
new file mode 100755
index 00000000..25217bac
--- /dev/null
+++ b/testsuite/semko/nodwf01.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# Verify that --ignore-vmlinux "hides" vmlinux.
+
+stap -p2 --ignore-vmlinux -e '
+probe kernel.function("printk") {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(30) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf02.stp b/testsuite/semko/nodwf02.stp
new file mode 100755
index 00000000..8f82d54b
--- /dev/null
+++ b/testsuite/semko/nodwf02.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# Verify that --ignore-dwarf "hides" dwarf info.
+
+stap -p2 --ignore-dwarf -e '
+probe kernel.function("printk") {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(30) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf03.stp b/testsuite/semko/nodwf03.stp
new file mode 100755
index 00000000..6b66f2e9
--- /dev/null
+++ b/testsuite/semko/nodwf03.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# --kelf doesn't work if vmlinux can't be found.
+
+stap -p2 --ignore-vmlinux --kelf -e '
+probe kernel.function("printk") {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(30) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf04.stp b/testsuite/semko/nodwf04.stp
new file mode 100755
index 00000000..c20dec4f
--- /dev/null
+++ b/testsuite/semko/nodwf04.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# The symbol table doesn't give us enough info to probe inline functions.
+
+stap -p2 --ignore-vmlinux --kmap=/proc/kallsyms -e '
+probe kernel.function("list_empty").inline {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(15) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf05.stp b/testsuite/semko/nodwf05.stp
new file mode 100755
index 00000000..83fcfa3d
--- /dev/null
+++ b/testsuite/semko/nodwf05.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# The symbol table doesn't give us enough info to map source files to functions.
+
+stap -p2 --ignore-vmlinux --kmap=/proc/kallsyms -e '
+probe kernel.function("*@kernel/printk.c") {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(15) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf06.stp b/testsuite/semko/nodwf06.stp
new file mode 100755
index 00000000..7318cbec
--- /dev/null
+++ b/testsuite/semko/nodwf06.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# The symbol table doesn't give us enough info to probe statements.
+
+stap -p2 --ignore-vmlinux --kmap=/proc/kallsyms -e '
+probe kernel.statement("*@kernel/printk.c:639") {
+	printf("probe hit: %s\n", pp())
+	exit()
+}
+
+probe timer.sec(15) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf07.stp b/testsuite/semko/nodwf07.stp
new file mode 100755
index 00000000..4a2cf4a5
--- /dev/null
+++ b/testsuite/semko/nodwf07.stp
@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# This should fail until/unless we expand our blacklist to cover symbols
+# in the symbol table that don't show up in dwarf.
+
+stap -p2 --ignore-vmlinux --kmap=/proc/kallsyms -e '
+probe kernel.function("*") {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(15) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf08.stp b/testsuite/semko/nodwf08.stp
new file mode 100755
index 00000000..4b6d9da5
--- /dev/null
+++ b/testsuite/semko/nodwf08.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# The regular blacklist should thwart this.
+
+stap -p2 --ignore-vmlinux --kmap=/proc/kallsyms -e '
+probe kernel.function("register_kprobe") {
+	printf("%s called\n", probefunc())
+	exit()
+}
+
+probe timer.sec(30) {
+	exit()
+}
+'
diff --git a/testsuite/semko/nodwf09.stp b/testsuite/semko/nodwf09.stp
new file mode 100755
index 00000000..e103833f
--- /dev/null
+++ b/testsuite/semko/nodwf09.stp
@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# The symbol table doesn't give us enough info to evaluate target variables.
+
+stap -p2 --ignore-vmlinux --kmap=/proc/kallsyms -e '
+probe kernel.function("printk") {
+	printf("%s called; fmt = \"%s\"\n", probefunc(), kernel_string($fmt))
+	exit()
+}
+
+probe timer.sec(15) {
+	exit()
+}
+'