* [PATCH 1/2] tests: Add symtab test suite
@ 2020-05-18 11:50 Matthias Maennich
2020-05-18 11:50 ` [PATCH 2/2] tests: Add kernel " Matthias Maennich
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Matthias Maennich @ 2020-05-18 11:50 UTC (permalink / raw)
To: libabigail; +Cc: dodji, gprocida, kernel-team, maennich
Add (Catch based) test suite to test symbol table reading through the
result persisted in abigail::corpus.
The test cases are created through simple C source files targeting the
desired properties (having an undefined/export function or both). The
Makefile that comes with them recreates the test cases from the sources.
This covers reading sorted_(undefined_)var|fun_symbols as well as the
corresponding symbols maps accessible through the accessors of
abigail::corpus.
* tests/Makefile.am: add new test runtestsymtab
* tests/data/Makefile.am: add new test data for runtestsymtab
* tests/data/test-symtab/basic/empty.c: New test case source.
* tests/data/test-symtab/basic/link_against_me.c: Likewise.
* tests/data/test-symtab/basic/no_debug_info.c: Likewise.
* tests/data/test-symtab/basic/one_function_one_variable.c: Likewise.
* tests/data/test-symtab/basic/one_function_one_variable_undefined.c: Likewise.
* tests/data/test-symtab/basic/single_function.c: Likewise.
* tests/data/test-symtab/basic/single_undefined_function.c: Likewise.
* tests/data/test-symtab/basic/single_undefined_variable.c: Likewise.
* tests/data/test-symtab/basic/single_variable.c: Likewise.
* tests/data/test-symtab/basic/empty.so: New test data.
* tests/data/test-symtab/basic/link_against_me.so: Likewise.
* tests/data/test-symtab/basic/no_debug_info.so: Likewise.
* tests/data/test-symtab/basic/one_function_one_variable.so: Likewise.
* tests/data/test-symtab/basic/one_function_one_variable_undefined.so: Likewise.
* tests/data/test-symtab/basic/single_function.so: Likewise.
* tests/data/test-symtab/basic/single_undefined_function.so: Likewise.
* tests/data/test-symtab/basic/single_undefined_variable.so: Likewise.
* tests/data/test-symtab/basic/single_variable.so: Likewise.
* tests/test-symtab.cc: New test driver.
Signed-off-by: Matthias Maennich <maennich@google.com>
---
tests/Makefile.am | 4 +
tests/data/Makefile.am | 22 +-
tests/data/test-symtab/basic/Makefile | 19 ++
tests/data/test-symtab/basic/empty.c | 1 +
tests/data/test-symtab/basic/empty.so | Bin 0 -> 15608 bytes
.../data/test-symtab/basic/link_against_me.c | 2 +
.../data/test-symtab/basic/link_against_me.so | Bin 0 -> 15600 bytes
tests/data/test-symtab/basic/no_debug_info.c | 1 +
tests/data/test-symtab/basic/no_debug_info.so | Bin 0 -> 15360 bytes
.../basic/one_function_one_variable.c | 3 +
.../basic/one_function_one_variable.so | Bin 0 -> 16624 bytes
.../one_function_one_variable_undefined.c | 7 +
.../one_function_one_variable_undefined.so | Bin 0 -> 16792 bytes
.../data/test-symtab/basic/single_function.c | 1 +
.../data/test-symtab/basic/single_function.so | Bin 0 -> 16472 bytes
.../basic/single_undefined_function.c | 5 +
.../basic/single_undefined_function.so | Bin 0 -> 16648 bytes
.../basic/single_undefined_variable.c | 7 +
.../basic/single_undefined_variable.so | Bin 0 -> 16728 bytes
.../data/test-symtab/basic/single_variable.c | 1 +
.../data/test-symtab/basic/single_variable.so | Bin 0 -> 16280 bytes
tests/test-symtab.cc | 205 ++++++++++++++++++
22 files changed, 277 insertions(+), 1 deletion(-)
create mode 100644 tests/data/test-symtab/basic/Makefile
create mode 100644 tests/data/test-symtab/basic/empty.c
create mode 100755 tests/data/test-symtab/basic/empty.so
create mode 100644 tests/data/test-symtab/basic/link_against_me.c
create mode 100755 tests/data/test-symtab/basic/link_against_me.so
create mode 100644 tests/data/test-symtab/basic/no_debug_info.c
create mode 100755 tests/data/test-symtab/basic/no_debug_info.so
create mode 100644 tests/data/test-symtab/basic/one_function_one_variable.c
create mode 100755 tests/data/test-symtab/basic/one_function_one_variable.so
create mode 100644 tests/data/test-symtab/basic/one_function_one_variable_undefined.c
create mode 100755 tests/data/test-symtab/basic/one_function_one_variable_undefined.so
create mode 100644 tests/data/test-symtab/basic/single_function.c
create mode 100755 tests/data/test-symtab/basic/single_function.so
create mode 100644 tests/data/test-symtab/basic/single_undefined_function.c
create mode 100755 tests/data/test-symtab/basic/single_undefined_function.so
create mode 100644 tests/data/test-symtab/basic/single_undefined_variable.c
create mode 100755 tests/data/test-symtab/basic/single_undefined_variable.so
create mode 100644 tests/data/test-symtab/basic/single_variable.c
create mode 100755 tests/data/test-symtab/basic/single_variable.so
create mode 100644 tests/test-symtab.cc
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 2d8ab9e794a4..c2d4d1dc5d35 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -49,6 +49,7 @@ runtestini \
runtestkmiwhitelist \
runtestlookupsyms \
runtestreadwrite \
+runtestsymtab \
runtesttoolsutils \
$(FEDABIPKGDIFF_TEST) \
$(ZIP_ARCHIVE_TESTS) \
@@ -154,6 +155,9 @@ runtestelfhelpers_LDADD = libcatch.la $(top_builddir)/src/libabigail.la
runtestcxxcompat_SOURCES = test-cxx-compat.cc
runtestcxxcompat_LDADD = libcatch.la $(top_builddir)/src/libabigail.la
+runtestsymtab_SOURCES = test-symtab.cc
+runtestsymtab_LDADD = libtestutils.la libcatch.la $(top_builddir)/src/libabigail.la
+
runtestsvg_SOURCES=test-svg.cc
runtestsvg_LDADD=$(top_builddir)/src/libabigail.la
diff --git a/tests/data/Makefile.am b/tests/data/Makefile.am
index 7e91f52c44fe..6505de594ab2 100644
--- a/tests/data/Makefile.am
+++ b/tests/data/Makefile.am
@@ -1700,4 +1700,24 @@ test-ini/test01-equal-in-property-string.abignore \
test-kmi-whitelist/whitelist-with-single-entry \
test-kmi-whitelist/whitelist-with-another-single-entry \
test-kmi-whitelist/whitelist-with-duplicate-entry \
-test-kmi-whitelist/whitelist-with-two-sections
+test-kmi-whitelist/whitelist-with-two-sections \
+\
+test-symtab/basic/Makefile \
+test-symtab/basic/empty.c \
+test-symtab/basic/empty.so \
+test-symtab/basic/link_against_me.c \
+test-symtab/basic/link_against_me.so \
+test-symtab/basic/no_debug_info.c \
+test-symtab/basic/no_debug_info.so \
+test-symtab/basic/one_function_one_variable.c \
+test-symtab/basic/one_function_one_variable.so \
+test-symtab/basic/one_function_one_variable_undefined.c \
+test-symtab/basic/one_function_one_variable_undefined.so \
+test-symtab/basic/single_function.c \
+test-symtab/basic/single_function.so \
+test-symtab/basic/single_undefined_function.c \
+test-symtab/basic/single_undefined_function.so \
+test-symtab/basic/single_undefined_variable.c \
+test-symtab/basic/single_undefined_variable.so \
+test-symtab/basic/single_variable.c \
+test-symtab/basic/single_variable.so
diff --git a/tests/data/test-symtab/basic/Makefile b/tests/data/test-symtab/basic/Makefile
new file mode 100644
index 000000000000..c84d128a4e28
--- /dev/null
+++ b/tests/data/test-symtab/basic/Makefile
@@ -0,0 +1,19 @@
+srcs = $(wildcard *.c)
+libs = $(srcs:.c=.so)
+
+flags = -fPIC
+
+all: $(libs)
+
+clean:
+ rm $(libs)
+
+no_debug_info.so: no_debug_info.c Makefile
+ $(CC) $< -shared $(flags) -o $@
+
+link_against_me.so: link_against_me.c
+ $(CC) $< -shared $(flags) -o $@
+
+%.so: %.c Makefile link_against_me.so
+ $(CC) $< -shared $(flags) -g -o $@ link_against_me.so
+
diff --git a/tests/data/test-symtab/basic/empty.c b/tests/data/test-symtab/basic/empty.c
new file mode 100644
index 000000000000..5bb380ba0db8
--- /dev/null
+++ b/tests/data/test-symtab/basic/empty.c
@@ -0,0 +1 @@
+// empty!
diff --git a/tests/data/test-symtab/basic/empty.so b/tests/data/test-symtab/basic/empty.so
new file mode 100755
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diff --git a/tests/data/test-symtab/basic/link_against_me.c b/tests/data/test-symtab/basic/link_against_me.c
new file mode 100644
index 000000000000..42d6a46bd23d
--- /dev/null
+++ b/tests/data/test-symtab/basic/link_against_me.c
@@ -0,0 +1,2 @@
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+void undefined_function() { }
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diff --git a/tests/data/test-symtab/basic/no_debug_info.c b/tests/data/test-symtab/basic/no_debug_info.c
new file mode 100644
index 000000000000..5bb380ba0db8
--- /dev/null
+++ b/tests/data/test-symtab/basic/no_debug_info.c
@@ -0,0 +1 @@
+// empty!
diff --git a/tests/data/test-symtab/basic/no_debug_info.so b/tests/data/test-symtab/basic/no_debug_info.so
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diff --git a/tests/data/test-symtab/basic/one_function_one_variable.c b/tests/data/test-symtab/basic/one_function_one_variable.c
new file mode 100644
index 000000000000..f31122a88fb8
--- /dev/null
+++ b/tests/data/test-symtab/basic/one_function_one_variable.c
@@ -0,0 +1,3 @@
+void exported_function(){}
+
+int exported_variable;
diff --git a/tests/data/test-symtab/basic/one_function_one_variable.so b/tests/data/test-symtab/basic/one_function_one_variable.so
new file mode 100755
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diff --git a/tests/data/test-symtab/basic/one_function_one_variable_undefined.c b/tests/data/test-symtab/basic/one_function_one_variable_undefined.c
new file mode 100644
index 000000000000..53ff5d82c5f8
--- /dev/null
+++ b/tests/data/test-symtab/basic/one_function_one_variable_undefined.c
@@ -0,0 +1,7 @@
+extern int undefined_variable;
+void undefined_function(int);
+
+
+static void local_function(){
+ undefined_function(undefined_variable);
+}
diff --git a/tests/data/test-symtab/basic/one_function_one_variable_undefined.so b/tests/data/test-symtab/basic/one_function_one_variable_undefined.so
new file mode 100755
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diff --git a/tests/data/test-symtab/basic/single_function.c b/tests/data/test-symtab/basic/single_function.c
new file mode 100644
index 000000000000..8ac09016eb4d
--- /dev/null
+++ b/tests/data/test-symtab/basic/single_function.c
@@ -0,0 +1 @@
+void exported_function(){}
diff --git a/tests/data/test-symtab/basic/single_function.so b/tests/data/test-symtab/basic/single_function.so
new file mode 100755
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diff --git a/tests/data/test-symtab/basic/single_undefined_function.c b/tests/data/test-symtab/basic/single_undefined_function.c
new file mode 100644
index 000000000000..484d6a5c6943
--- /dev/null
+++ b/tests/data/test-symtab/basic/single_undefined_function.c
@@ -0,0 +1,5 @@
+void undefined_function();
+
+static void local_function() {
+ undefined_function();
+}
diff --git a/tests/data/test-symtab/basic/single_undefined_function.so b/tests/data/test-symtab/basic/single_undefined_function.so
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diff --git a/tests/data/test-symtab/basic/single_undefined_variable.c b/tests/data/test-symtab/basic/single_undefined_variable.c
new file mode 100644
index 000000000000..b0602c2d4e6a
--- /dev/null
+++ b/tests/data/test-symtab/basic/single_undefined_variable.c
@@ -0,0 +1,7 @@
+extern int undefined_variable;
+
+static void other_local_function(int variable) { (void)variable; }
+
+static void local_function(){
+ other_local_function(undefined_variable);
+}
diff --git a/tests/data/test-symtab/basic/single_undefined_variable.so b/tests/data/test-symtab/basic/single_undefined_variable.so
new file mode 100755
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diff --git a/tests/data/test-symtab/basic/single_variable.c b/tests/data/test-symtab/basic/single_variable.c
new file mode 100644
index 000000000000..620e156dccbc
--- /dev/null
+++ b/tests/data/test-symtab/basic/single_variable.c
@@ -0,0 +1 @@
+int exported_variable;
diff --git a/tests/data/test-symtab/basic/single_variable.so b/tests/data/test-symtab/basic/single_variable.so
new file mode 100755
index 0000000000000000000000000000000000000000..6ba3f4343c69b87a8ec280b6cc59b3db7fd33d8d
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HcmV?d00001
diff --git a/tests/test-symtab.cc b/tests/test-symtab.cc
new file mode 100644
index 000000000000..62f8998af5d0
--- /dev/null
+++ b/tests/test-symtab.cc
@@ -0,0 +1,205 @@
+// -*- Mode: C++ -*-
+//
+// Copyright (C) 2020 Google, Inc.
+//
+// This file is part of the GNU Application Binary Interface Generic
+// Analysis and Instrumentation Library (libabigail). This library is
+// free software; you can redistribute it and/or modify it under the
+// terms of the GNU Lesser General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option) any
+// later version.
+
+// This library 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 Lesser Public License for more details.
+
+// You should have received a copy of the GNU Lesser General Public
+// License along with this program; see the file COPYING-LGPLV3. If
+// not, see <http://www.gnu.org/licenses/>.
+
+// Author: Matthias Maennich
+
+/// @file
+///
+/// This program tests symtab invariants through abg-corpus.
+
+#include <iostream>
+#include <limits>
+#include <vector>
+
+#include "abg-corpus.h"
+#include "abg-dwarf-reader.h"
+#include "abg-ir.h"
+#include "lib/catch.hpp"
+#include "test-utils.h"
+
+using namespace abigail;
+
+using dwarf_reader::create_read_context;
+using dwarf_reader::read_context_sptr;
+using dwarf_reader::read_corpus_from_elf;
+using ir::environment;
+using ir::environment_sptr;
+
+static const std::string test_data_dir =
+ std::string(abigail::tests::get_src_dir()) + "/tests/data/test-symtab/";
+
+dwarf_reader::status
+read_corpus(const std::string path, corpus_sptr& result)
+{
+ const std::string& absolute_path = test_data_dir + path;
+
+ environment_sptr env(new environment);
+ const std::vector<char**> debug_info_root_paths;
+ read_context_sptr ctxt =
+ create_read_context(absolute_path, debug_info_root_paths, env.get());
+
+ dwarf_reader::status status = dwarf_reader::STATUS_UNKNOWN;
+ result = read_corpus_from_elf(*ctxt, status);
+
+ REQUIRE(status != dwarf_reader::STATUS_UNKNOWN);
+ return status;
+}
+
+TEST_CASE("Symtab::Empty", "[symtab, basic]")
+{
+ const std::string binary = "basic/empty.so";
+ corpus_sptr corpus_ptr;
+ const dwarf_reader::status status = read_corpus(binary, corpus_ptr);
+ REQUIRE(corpus_ptr);
+
+ REQUIRE((status & dwarf_reader::STATUS_OK));
+
+ // TODO: Those two assertions are currently not met. Empty symtabs are
+ // currently treated like the error case.
+ // REQUIRE((status & dwarf_reader::STATUS_OK));
+ // REQUIRE((status & dwarf_reader::STATUS_NO_SYMBOLS_FOUND));
+}
+
+TEST_CASE("Symtab::NoDebugInfo", "[symtab, basic]")
+{
+ const std::string binary = "basic/no_debug_info.so";
+ corpus_sptr corpus_ptr;
+ const dwarf_reader::status status = read_corpus(binary, corpus_ptr);
+ REQUIRE(corpus_ptr);
+
+ REQUIRE(status
+ == (dwarf_reader::STATUS_OK
+ | dwarf_reader::STATUS_DEBUG_INFO_NOT_FOUND));
+}
+
+// this value indicates in the following helper method, that we do not want to
+// assert for this particular value. In other words, N is a placeholder for an
+// arbitrary value.
+#define N std::numeric_limits<size_t>::max()
+
+corpus_sptr
+assert_symbol_count(const std::string& path,
+ size_t function_symbols = 0,
+ size_t variable_symbols = 0,
+ size_t undefined_function_symbols = 0,
+ size_t undefined_variable_symbols = 0)
+{
+ corpus_sptr corpus_ptr;
+ const dwarf_reader::status status = read_corpus(path, corpus_ptr);
+ REQUIRE(corpus_ptr);
+
+ REQUIRE(status == dwarf_reader::STATUS_OK);
+ const corpus& corpus = *corpus_ptr;
+
+ if (function_symbols != N)
+ {
+ CHECK(corpus.get_sorted_fun_symbols().size() == function_symbols);
+ CHECK(corpus.get_fun_symbol_map().size() == function_symbols);
+ CHECK(corpus.get_fun_symbol_map_sptr()->size() == function_symbols);
+ }
+ if (variable_symbols != N)
+ {
+ CHECK(corpus.get_sorted_var_symbols().size() == variable_symbols);
+ CHECK(corpus.get_var_symbol_map().size() == variable_symbols);
+ CHECK(corpus.get_var_symbol_map_sptr()->size() == variable_symbols);
+ }
+ if (undefined_variable_symbols != N)
+ {
+ CHECK(corpus.get_sorted_undefined_fun_symbols().size()
+ == undefined_function_symbols);
+ CHECK(corpus.get_undefined_fun_symbol_map().size()
+ == undefined_function_symbols);
+ CHECK(corpus.get_undefined_fun_symbol_map_sptr()->size()
+ == undefined_function_symbols);
+ }
+ if (undefined_function_symbols != N)
+ {
+ CHECK(corpus.get_sorted_undefined_var_symbols().size()
+ == undefined_variable_symbols);
+ CHECK(corpus.get_undefined_var_symbol_map().size()
+ == undefined_variable_symbols);
+ CHECK(corpus.get_undefined_var_symbol_map_sptr()->size()
+ == undefined_variable_symbols);
+ }
+
+ return corpus_ptr;
+}
+
+TEST_CASE("Symtab::SimpleSymtabs", "[symtab, basic]")
+{
+ GIVEN("a binary with no exported symbols")
+ {
+ // TODO: should pass, but does currently not as empty tables are treated
+ // like the error case, but this is an edge case anyway.
+ // assert_symbol_count("empty.so");
+ }
+
+ GIVEN("a binary with a single exported function")
+ {
+ const std::string binary = "basic/single_function.so";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 1, 0);
+ const elf_symbol_sptr& symbol =
+ corpus->lookup_function_symbol("exported_function");
+ REQUIRE(symbol);
+ CHECK(!corpus->lookup_variable_symbol("exported_function"));
+ CHECK(symbol == corpus->lookup_function_symbol(*symbol));
+ CHECK(symbol != corpus->lookup_variable_symbol(*symbol));
+ }
+
+ GIVEN("a binary with a single exported variable")
+ {
+ const std::string binary = "basic/single_variable.so";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 0, 1);
+ const elf_symbol_sptr& symbol =
+ corpus->lookup_variable_symbol("exported_variable");
+ REQUIRE(symbol);
+ CHECK(!corpus->lookup_function_symbol("exported_variable"));
+ CHECK(symbol == corpus->lookup_variable_symbol(*symbol));
+ CHECK(symbol != corpus->lookup_function_symbol(*symbol));
+ }
+
+ GIVEN("a binary with one function and one variable exported")
+ {
+ const std::string binary = "basic/one_function_one_variable.so";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 1, 1);
+ CHECK(corpus->lookup_function_symbol("exported_function"));
+ CHECK(!corpus->lookup_variable_symbol("exported_function"));
+ CHECK(corpus->lookup_variable_symbol("exported_variable"));
+ CHECK(!corpus->lookup_function_symbol("exported_variable"));
+ }
+
+ GIVEN("a binary with a single undefined function")
+ {
+ const std::string binary = "basic/single_undefined_function.so";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 0, 0, 1, 0);
+ }
+
+ GIVEN("a binary with a single undefined variable")
+ {
+ const std::string binary = "basic/single_undefined_variable.so";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 0, 0, 0, 1);
+ }
+
+ GIVEN("a binary with one function and one variable undefined")
+ {
+ const std::string binary = "basic/one_function_one_variable_undefined.so";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 0, 0, 1, 1);
+ }
+}
--
2.26.2.761.g0e0b3e54be-goog
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 2/2] tests: Add kernel symtab test suite
2020-05-18 11:50 [PATCH 1/2] tests: Add symtab test suite Matthias Maennich
@ 2020-05-18 11:50 ` Matthias Maennich
2020-05-27 9:15 ` Dodji Seketeli
2020-05-26 14:00 ` [PATCH 1/2] tests: Add " Dodji Seketeli
2020-05-27 9:06 ` Dodji Seketeli
2 siblings, 1 reply; 6+ messages in thread
From: Matthias Maennich @ 2020-05-18 11:50 UTC (permalink / raw)
To: libabigail; +Cc: dodji, gprocida, kernel-team, maennich
Add (Catch based) test suite to test kernel symbol table (ksymtab)
reading through the result persisted in abigail::corpus.
The test cases are created through simple kernel module C source files
targeting the desired properties ((gpl) exported / local functions /
variables). The kernel binaries are built without debug information to
keep them reasonably small and reproducible. That is just enough
sufficient to analyze ksymtabs. The Makefile that comes with them
recreates the test cases from the sources, given a kernel source tree
with the appropriate version, e.g.
make KDIR=/path/to/4.14
This covers ksymtab reading and ensuring we detect the kernel binary
correctly. The kernel versions are selected based on features introduced
into the Linux kernel that affect the ksymtab representation.
- Linux v4.14 - reasonably old kernel to start with (actually v4.14.180)
- Linux v4.19 - first version having position relative relocations
(PREL) in ksymtab entries on some platforms
(actually v4.19.123)
- Linux v5.4 - first version having symbol namespaces (actually v5.4.41)
- Linux v5.6 - latest released stable kernel as of writing (actually v5.6.13)
* tests/data/Makefile.am: add new test data for runtestsymtab
* tests/data/test-symtab/kernel-4.14/Makefile: New test case makefile.
* tests/data/test-symtab/kernel-4.14/empty.c: Likewise.
* tests/data/test-symtab/kernel-4.14/one_of_each.c: Likewise.
* tests/data/test-symtab/kernel-4.14/single_function.c: Likewise.
* tests/data/test-symtab/kernel-4.14/single_function_gpl.c: Likewise.
* tests/data/test-symtab/kernel-4.14/single_variable.c: Likewise.
* tests/data/test-symtab/kernel-4.14/single_variable_gpl.c: Likewise.
* tests/data/test-symtab/kernel-4.14/empty.ko: New test data.
* tests/data/test-symtab/kernel-4.14/one_of_each.ko: Likewise.
* tests/data/test-symtab/kernel-4.14/single_function.ko: Likewise.
* tests/data/test-symtab/kernel-4.14/single_function_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-4.14/single_variable.ko: Likewise.
* tests/data/test-symtab/kernel-4.14/single_variable_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-4.19/Makefile: New test case makefile.
* tests/data/test-symtab/kernel-4.19/empty.c: Likewise.
* tests/data/test-symtab/kernel-4.19/one_of_each.c: Likewise.
* tests/data/test-symtab/kernel-4.19/single_function.c: Likewise.
* tests/data/test-symtab/kernel-4.19/single_function_gpl.c: Likewise.
* tests/data/test-symtab/kernel-4.19/single_variable.c: Likewise.
* tests/data/test-symtab/kernel-4.19/single_variable_gpl.c: Likewise.
* tests/data/test-symtab/kernel-4.19/empty.ko: New test data.
* tests/data/test-symtab/kernel-4.19/one_of_each.ko: Likewise.
* tests/data/test-symtab/kernel-4.19/single_function.ko: Likewise.
* tests/data/test-symtab/kernel-4.19/single_function_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-4.19/single_variable.ko: Likewise.
* tests/data/test-symtab/kernel-4.19/single_variable_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-5.4/Makefile: New test case makefile.
* tests/data/test-symtab/kernel-5.4/empty.c: Likewise.
* tests/data/test-symtab/kernel-5.4/one_of_each.c: Likewise.
* tests/data/test-symtab/kernel-5.4/single_function.c: Likewise.
* tests/data/test-symtab/kernel-5.4/single_function_gpl.c: Likewise.
* tests/data/test-symtab/kernel-5.4/single_variable.c: Likewise.
* tests/data/test-symtab/kernel-5.4/single_variable_gpl.c: Likewise.
* tests/data/test-symtab/kernel-5.4/empty.ko: New test data.
* tests/data/test-symtab/kernel-5.4/one_of_each.ko: Likewise.
* tests/data/test-symtab/kernel-5.4/single_function.ko: Likewise.
* tests/data/test-symtab/kernel-5.4/single_function_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-5.4/single_variable.ko: Likewise.
* tests/data/test-symtab/kernel-5.4/single_variable_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-5.6/Makefile: New test case makefile.
* tests/data/test-symtab/kernel-5.6/empty.c: Likewise.
* tests/data/test-symtab/kernel-5.6/one_of_each.c: Likewise.
* tests/data/test-symtab/kernel-5.6/single_function.c: Likewise.
* tests/data/test-symtab/kernel-5.6/single_function_gpl.c: Likewise.
* tests/data/test-symtab/kernel-5.6/single_variable.c: Likewise.
* tests/data/test-symtab/kernel-5.6/single_variable_gpl.c: Likewise.
* tests/data/test-symtab/kernel-5.6/empty.ko: New test data.
* tests/data/test-symtab/kernel-5.6/one_of_each.ko: Likewise.
* tests/data/test-symtab/kernel-5.6/single_function.ko: Likewise.
* tests/data/test-symtab/kernel-5.6/single_function_gpl.ko: Likewise.
* tests/data/test-symtab/kernel-5.6/single_variable.ko: Likewise.
* tests/data/test-symtab/kernel-5.6/single_variable_gpl.ko: Likewise.
* tests/data/test-symtab/kernel/Makefile: New test case source file.
* tests/data/test-symtab/kernel/empty.c: Likewise.
* tests/data/test-symtab/kernel/one_of_each.c: Likewise.
* tests/data/test-symtab/kernel/single_function.c: Likewise.
* tests/data/test-symtab/kernel/single_function_gpl.c: Likewise.
* tests/data/test-symtab/kernel/single_variable.c: Likewise.
* tests/data/test-symtab/kernel/single_variable_gpl.c: Likewise.
* tests/test-symtab.cc: New test case to test kernel symtabs.
Signed-off-by: Matthias Maennich <maennich@google.com>
---
tests/data/Makefile.am | 75 +++++++++++++-
tests/data/test-symtab/kernel-4.14/Makefile | 1 +
tests/data/test-symtab/kernel-4.14/empty.c | 1 +
tests/data/test-symtab/kernel-4.14/empty.ko | Bin 0 -> 2136 bytes
.../test-symtab/kernel-4.14/one_of_each.c | 1 +
.../test-symtab/kernel-4.14/one_of_each.ko | Bin 0 -> 3512 bytes
.../test-symtab/kernel-4.14/single_function.c | 1 +
.../kernel-4.14/single_function.ko | Bin 0 -> 2744 bytes
.../kernel-4.14/single_function_gpl.c | 1 +
.../kernel-4.14/single_function_gpl.ko | Bin 0 -> 2760 bytes
.../test-symtab/kernel-4.14/single_variable.c | 1 +
.../kernel-4.14/single_variable.ko | Bin 0 -> 2744 bytes
.../kernel-4.14/single_variable_gpl.c | 1 +
.../kernel-4.14/single_variable_gpl.ko | Bin 0 -> 2760 bytes
tests/data/test-symtab/kernel-4.19/Makefile | 1 +
tests/data/test-symtab/kernel-4.19/empty.c | 1 +
tests/data/test-symtab/kernel-4.19/empty.ko | Bin 0 -> 2264 bytes
.../test-symtab/kernel-4.19/one_of_each.c | 1 +
.../test-symtab/kernel-4.19/one_of_each.ko | Bin 0 -> 3648 bytes
.../test-symtab/kernel-4.19/single_function.c | 1 +
.../kernel-4.19/single_function.ko | Bin 0 -> 2872 bytes
.../kernel-4.19/single_function_gpl.c | 1 +
.../kernel-4.19/single_function_gpl.ko | Bin 0 -> 2896 bytes
.../test-symtab/kernel-4.19/single_variable.c | 1 +
.../kernel-4.19/single_variable.ko | Bin 0 -> 2872 bytes
.../kernel-4.19/single_variable_gpl.c | 1 +
.../kernel-4.19/single_variable_gpl.ko | Bin 0 -> 2896 bytes
tests/data/test-symtab/kernel-5.4/Makefile | 1 +
tests/data/test-symtab/kernel-5.4/empty.c | 1 +
tests/data/test-symtab/kernel-5.4/empty.ko | Bin 0 -> 2336 bytes
.../data/test-symtab/kernel-5.4/one_of_each.c | 1 +
.../test-symtab/kernel-5.4/one_of_each.ko | Bin 0 -> 3720 bytes
.../test-symtab/kernel-5.4/single_function.c | 1 +
.../test-symtab/kernel-5.4/single_function.ko | Bin 0 -> 2944 bytes
.../kernel-5.4/single_function_gpl.c | 1 +
.../kernel-5.4/single_function_gpl.ko | Bin 0 -> 2968 bytes
.../test-symtab/kernel-5.4/single_variable.c | 1 +
.../test-symtab/kernel-5.4/single_variable.ko | Bin 0 -> 2944 bytes
.../kernel-5.4/single_variable_gpl.c | 1 +
.../kernel-5.4/single_variable_gpl.ko | Bin 0 -> 2968 bytes
tests/data/test-symtab/kernel-5.6/Makefile | 1 +
tests/data/test-symtab/kernel-5.6/empty.c | 1 +
tests/data/test-symtab/kernel-5.6/empty.ko | Bin 0 -> 2336 bytes
.../data/test-symtab/kernel-5.6/one_of_each.c | 1 +
.../test-symtab/kernel-5.6/one_of_each.ko | Bin 0 -> 4040 bytes
.../test-symtab/kernel-5.6/single_function.c | 1 +
.../test-symtab/kernel-5.6/single_function.ko | Bin 0 -> 3024 bytes
.../kernel-5.6/single_function_gpl.c | 1 +
.../kernel-5.6/single_function_gpl.ko | Bin 0 -> 3048 bytes
.../test-symtab/kernel-5.6/single_variable.c | 1 +
.../test-symtab/kernel-5.6/single_variable.ko | Bin 0 -> 3024 bytes
.../kernel-5.6/single_variable_gpl.c | 1 +
.../kernel-5.6/single_variable_gpl.ko | Bin 0 -> 3048 bytes
tests/data/test-symtab/kernel/Makefile | 19 ++++
tests/data/test-symtab/kernel/empty.c | 0
tests/data/test-symtab/kernel/one_of_each.c | 16 +++
.../data/test-symtab/kernel/single_function.c | 7 ++
.../test-symtab/kernel/single_function_gpl.c | 7 ++
.../data/test-symtab/kernel/single_variable.c | 7 ++
.../test-symtab/kernel/single_variable_gpl.c | 7 ++
tests/test-symtab.cc | 94 +++++++++++++++++-
61 files changed, 256 insertions(+), 4 deletions(-)
create mode 120000 tests/data/test-symtab/kernel-4.14/Makefile
create mode 120000 tests/data/test-symtab/kernel-4.14/empty.c
create mode 100644 tests/data/test-symtab/kernel-4.14/empty.ko
create mode 120000 tests/data/test-symtab/kernel-4.14/one_of_each.c
create mode 100644 tests/data/test-symtab/kernel-4.14/one_of_each.ko
create mode 120000 tests/data/test-symtab/kernel-4.14/single_function.c
create mode 100644 tests/data/test-symtab/kernel-4.14/single_function.ko
create mode 120000 tests/data/test-symtab/kernel-4.14/single_function_gpl.c
create mode 100644 tests/data/test-symtab/kernel-4.14/single_function_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-4.14/single_variable.c
create mode 100644 tests/data/test-symtab/kernel-4.14/single_variable.ko
create mode 120000 tests/data/test-symtab/kernel-4.14/single_variable_gpl.c
create mode 100644 tests/data/test-symtab/kernel-4.14/single_variable_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-4.19/Makefile
create mode 120000 tests/data/test-symtab/kernel-4.19/empty.c
create mode 100644 tests/data/test-symtab/kernel-4.19/empty.ko
create mode 120000 tests/data/test-symtab/kernel-4.19/one_of_each.c
create mode 100644 tests/data/test-symtab/kernel-4.19/one_of_each.ko
create mode 120000 tests/data/test-symtab/kernel-4.19/single_function.c
create mode 100644 tests/data/test-symtab/kernel-4.19/single_function.ko
create mode 120000 tests/data/test-symtab/kernel-4.19/single_function_gpl.c
create mode 100644 tests/data/test-symtab/kernel-4.19/single_function_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-4.19/single_variable.c
create mode 100644 tests/data/test-symtab/kernel-4.19/single_variable.ko
create mode 120000 tests/data/test-symtab/kernel-4.19/single_variable_gpl.c
create mode 100644 tests/data/test-symtab/kernel-4.19/single_variable_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-5.4/Makefile
create mode 120000 tests/data/test-symtab/kernel-5.4/empty.c
create mode 100644 tests/data/test-symtab/kernel-5.4/empty.ko
create mode 120000 tests/data/test-symtab/kernel-5.4/one_of_each.c
create mode 100644 tests/data/test-symtab/kernel-5.4/one_of_each.ko
create mode 120000 tests/data/test-symtab/kernel-5.4/single_function.c
create mode 100644 tests/data/test-symtab/kernel-5.4/single_function.ko
create mode 120000 tests/data/test-symtab/kernel-5.4/single_function_gpl.c
create mode 100644 tests/data/test-symtab/kernel-5.4/single_function_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-5.4/single_variable.c
create mode 100644 tests/data/test-symtab/kernel-5.4/single_variable.ko
create mode 120000 tests/data/test-symtab/kernel-5.4/single_variable_gpl.c
create mode 100644 tests/data/test-symtab/kernel-5.4/single_variable_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-5.6/Makefile
create mode 120000 tests/data/test-symtab/kernel-5.6/empty.c
create mode 100644 tests/data/test-symtab/kernel-5.6/empty.ko
create mode 120000 tests/data/test-symtab/kernel-5.6/one_of_each.c
create mode 100644 tests/data/test-symtab/kernel-5.6/one_of_each.ko
create mode 120000 tests/data/test-symtab/kernel-5.6/single_function.c
create mode 100644 tests/data/test-symtab/kernel-5.6/single_function.ko
create mode 120000 tests/data/test-symtab/kernel-5.6/single_function_gpl.c
create mode 100644 tests/data/test-symtab/kernel-5.6/single_function_gpl.ko
create mode 120000 tests/data/test-symtab/kernel-5.6/single_variable.c
create mode 100644 tests/data/test-symtab/kernel-5.6/single_variable.ko
create mode 120000 tests/data/test-symtab/kernel-5.6/single_variable_gpl.c
create mode 100644 tests/data/test-symtab/kernel-5.6/single_variable_gpl.ko
create mode 100644 tests/data/test-symtab/kernel/Makefile
create mode 100644 tests/data/test-symtab/kernel/empty.c
create mode 100644 tests/data/test-symtab/kernel/one_of_each.c
create mode 100644 tests/data/test-symtab/kernel/single_function.c
create mode 100644 tests/data/test-symtab/kernel/single_function_gpl.c
create mode 100644 tests/data/test-symtab/kernel/single_variable.c
create mode 100644 tests/data/test-symtab/kernel/single_variable_gpl.c
diff --git a/tests/data/Makefile.am b/tests/data/Makefile.am
index 6505de594ab2..af31d33ae219 100644
--- a/tests/data/Makefile.am
+++ b/tests/data/Makefile.am
@@ -1720,4 +1720,77 @@ test-symtab/basic/single_undefined_function.so \
test-symtab/basic/single_undefined_variable.c \
test-symtab/basic/single_undefined_variable.so \
test-symtab/basic/single_variable.c \
-test-symtab/basic/single_variable.so
+test-symtab/basic/single_variable.so \
+\
+test-symtab/kernel/Makefile \
+test-symtab/kernel/empty.c \
+test-symtab/kernel/one_of_each.c \
+test-symtab/kernel/single_function.c \
+test-symtab/kernel/single_function_gpl.c \
+test-symtab/kernel/single_variable.c \
+test-symtab/kernel/single_variable_gpl.c \
+test-symtab/kernel-4.14/Makefile \
+test-symtab/kernel-4.14/empty.c \
+test-symtab/kernel-4.14/empty.ko \
+test-symtab/kernel-4.14/one_of_each.c \
+test-symtab/kernel-4.14/one_of_each.ko \
+test-symtab/kernel-4.14/single_function.c \
+test-symtab/kernel-4.14/single_function.ko \
+test-symtab/kernel-4.14/single_function_gpl.c \
+test-symtab/kernel-4.14/single_function_gpl.ko \
+test-symtab/kernel-4.14/single_variable.c \
+test-symtab/kernel-4.14/single_variable.ko \
+test-symtab/kernel-4.14/single_variable_gpl.c \
+test-symtab/kernel-4.14/single_variable_gpl.ko \
+test-symtab/kernel-4.19/Makefile \
+test-symtab/kernel-4.19/empty.c \
+test-symtab/kernel-4.19/empty.ko \
+test-symtab/kernel-4.19/one_of_each.c \
+test-symtab/kernel-4.19/one_of_each.ko \
+test-symtab/kernel-4.19/single_function.c \
+test-symtab/kernel-4.19/single_function.ko \
+test-symtab/kernel-4.19/single_function_gpl.c \
+test-symtab/kernel-4.19/single_function_gpl.ko \
+test-symtab/kernel-4.19/single_variable.c \
+test-symtab/kernel-4.19/single_variable.ko \
+test-symtab/kernel-4.19/single_variable_gpl.c \
+test-symtab/kernel-4.19/single_variable_gpl.ko \
+test-symtab/kernel-5.3/Makefile \
+test-symtab/kernel-5.3/empty.c \
+test-symtab/kernel-5.3/empty.ko \
+test-symtab/kernel-5.3/one_of_each.c \
+test-symtab/kernel-5.3/one_of_each.ko \
+test-symtab/kernel-5.3/single_function.c \
+test-symtab/kernel-5.3/single_function.ko \
+test-symtab/kernel-5.3/single_function_gpl.c \
+test-symtab/kernel-5.3/single_function_gpl.ko \
+test-symtab/kernel-5.3/single_variable.c \
+test-symtab/kernel-5.3/single_variable.ko \
+test-symtab/kernel-5.3/single_variable_gpl.c \
+test-symtab/kernel-5.3/single_variable_gpl.ko \
+test-symtab/kernel-5.4/Makefile \
+test-symtab/kernel-5.4/empty.c \
+test-symtab/kernel-5.4/empty.ko \
+test-symtab/kernel-5.4/one_of_each.c \
+test-symtab/kernel-5.4/one_of_each.ko \
+test-symtab/kernel-5.4/single_function.c \
+test-symtab/kernel-5.4/single_function.ko \
+test-symtab/kernel-5.4/single_function_gpl.c \
+test-symtab/kernel-5.4/single_function_gpl.ko \
+test-symtab/kernel-5.4/single_variable.c \
+test-symtab/kernel-5.4/single_variable.ko \
+test-symtab/kernel-5.4/single_variable_gpl.c \
+test-symtab/kernel-5.4/single_variable_gpl.ko \
+test-symtab/kernel-5.6/Makefile \
+test-symtab/kernel-5.6/empty.c \
+test-symtab/kernel-5.6/empty.ko \
+test-symtab/kernel-5.6/one_of_each.c \
+test-symtab/kernel-5.6/one_of_each.ko \
+test-symtab/kernel-5.6/single_function.c \
+test-symtab/kernel-5.6/single_function.ko \
+test-symtab/kernel-5.6/single_function_gpl.c \
+test-symtab/kernel-5.6/single_function_gpl.ko \
+test-symtab/kernel-5.6/single_variable.c \
+test-symtab/kernel-5.6/single_variable.ko \
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diff --git a/tests/data/test-symtab/kernel-4.14/Makefile b/tests/data/test-symtab/kernel-4.14/Makefile
new file mode 120000
index 000000000000..c7e68bddd8d2
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new file mode 120000
index 000000000000..ac07d5e725cc
--- /dev/null
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diff --git a/tests/data/test-symtab/kernel-5.6/one_of_each.c b/tests/data/test-symtab/kernel-5.6/one_of_each.c
new file mode 120000
index 000000000000..27c87e5758cb
--- /dev/null
+++ b/tests/data/test-symtab/kernel-5.6/one_of_each.c
@@ -0,0 +1 @@
+../kernel/one_of_each.c
\ No newline at end of file
diff --git a/tests/data/test-symtab/kernel-5.6/one_of_each.ko b/tests/data/test-symtab/kernel-5.6/one_of_each.ko
new file mode 100644
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diff --git a/tests/data/test-symtab/kernel-5.6/single_function.c b/tests/data/test-symtab/kernel-5.6/single_function.c
new file mode 120000
index 000000000000..a0055533bd8e
--- /dev/null
+++ b/tests/data/test-symtab/kernel-5.6/single_function.c
@@ -0,0 +1 @@
+../kernel/single_function.c
\ No newline at end of file
diff --git a/tests/data/test-symtab/kernel-5.6/single_function.ko b/tests/data/test-symtab/kernel-5.6/single_function.ko
new file mode 100644
index 0000000000000000000000000000000000000000..28e40813c98ae20700d5be69a2d483d75be608bf
GIT binary patch
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diff --git a/tests/data/test-symtab/kernel-5.6/single_function_gpl.c b/tests/data/test-symtab/kernel-5.6/single_function_gpl.c
new file mode 120000
index 000000000000..3f9b47f8514e
--- /dev/null
+++ b/tests/data/test-symtab/kernel-5.6/single_function_gpl.c
@@ -0,0 +1 @@
+../kernel/single_function_gpl.c
\ No newline at end of file
diff --git a/tests/data/test-symtab/kernel-5.6/single_function_gpl.ko b/tests/data/test-symtab/kernel-5.6/single_function_gpl.ko
new file mode 100644
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GIT binary patch
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diff --git a/tests/data/test-symtab/kernel-5.6/single_variable.c b/tests/data/test-symtab/kernel-5.6/single_variable.c
new file mode 120000
index 000000000000..196fb4c0ba58
--- /dev/null
+++ b/tests/data/test-symtab/kernel-5.6/single_variable.c
@@ -0,0 +1 @@
+../kernel/single_variable.c
\ No newline at end of file
diff --git a/tests/data/test-symtab/kernel-5.6/single_variable.ko b/tests/data/test-symtab/kernel-5.6/single_variable.ko
new file mode 100644
index 0000000000000000000000000000000000000000..a3d71e6df73a0deebeac405a32900a21f2b000a8
GIT binary patch
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diff --git a/tests/data/test-symtab/kernel-5.6/single_variable_gpl.c b/tests/data/test-symtab/kernel-5.6/single_variable_gpl.c
new file mode 120000
index 000000000000..dc09c0d27870
--- /dev/null
+++ b/tests/data/test-symtab/kernel-5.6/single_variable_gpl.c
@@ -0,0 +1 @@
+../kernel/single_variable_gpl.c
\ No newline at end of file
diff --git a/tests/data/test-symtab/kernel-5.6/single_variable_gpl.ko b/tests/data/test-symtab/kernel-5.6/single_variable_gpl.ko
new file mode 100644
index 0000000000000000000000000000000000000000..a2142a69133f2cdc77c9894874cf31b3b9274f1d
GIT binary patch
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HcmV?d00001
diff --git a/tests/data/test-symtab/kernel/Makefile b/tests/data/test-symtab/kernel/Makefile
new file mode 100644
index 000000000000..223db4550e50
--- /dev/null
+++ b/tests/data/test-symtab/kernel/Makefile
@@ -0,0 +1,19 @@
+obj-m += empty.o
+obj-m += single_function.o
+obj-m += single_function_gpl.o
+obj-m += single_variable.o
+obj-m += single_variable_gpl.o
+obj-m += one_of_each.o
+
+KDIR := /tmp/some/kernel/source/dir
+
+PWD := $(shell pwd)
+default:
+ make -C $(KDIR) tinyconfig
+ pushd $(KDIR); ./scripts/config -e 64BIT -e MODULES; $(MAKE) olddefconfig; popd
+ $(MAKE) -C $(KDIR)
+ $(MAKE) -C $(KDIR) M=$(PWD) modules
+ rm -rf *.mod.c *.o .*.cmd .*.d *.mod modules.order Module.symvers .tmp_versions
+
+clean:
+ rm *.ko
diff --git a/tests/data/test-symtab/kernel/empty.c b/tests/data/test-symtab/kernel/empty.c
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/tests/data/test-symtab/kernel/one_of_each.c b/tests/data/test-symtab/kernel/one_of_each.c
new file mode 100644
index 000000000000..9d461fbd0053
--- /dev/null
+++ b/tests/data/test-symtab/kernel/one_of_each.c
@@ -0,0 +1,16 @@
+#include <linux/module.h>
+
+void exported_function(void) {}
+EXPORT_SYMBOL(exported_function);
+
+void exported_function_gpl(void) {}
+EXPORT_SYMBOL_GPL(exported_function_gpl);
+
+int exported_variable = 1;
+EXPORT_SYMBOL(exported_variable);
+
+int exported_variable_gpl = 1;
+EXPORT_SYMBOL_GPL(exported_variable_gpl);
+
+void local_function(void) {}
+int local_variable = 2;
diff --git a/tests/data/test-symtab/kernel/single_function.c b/tests/data/test-symtab/kernel/single_function.c
new file mode 100644
index 000000000000..5160865f64ea
--- /dev/null
+++ b/tests/data/test-symtab/kernel/single_function.c
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+void exported_function(void) {}
+EXPORT_SYMBOL(exported_function);
+
+void local_function(void) {}
+int local_variable = 2;
diff --git a/tests/data/test-symtab/kernel/single_function_gpl.c b/tests/data/test-symtab/kernel/single_function_gpl.c
new file mode 100644
index 000000000000..fb5503a0c111
--- /dev/null
+++ b/tests/data/test-symtab/kernel/single_function_gpl.c
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+void exported_function_gpl(void) {}
+EXPORT_SYMBOL_GPL(exported_function_gpl);
+
+void local_function(void) {}
+int local_variable = 2;
diff --git a/tests/data/test-symtab/kernel/single_variable.c b/tests/data/test-symtab/kernel/single_variable.c
new file mode 100644
index 000000000000..20178f257406
--- /dev/null
+++ b/tests/data/test-symtab/kernel/single_variable.c
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+int exported_variable = 1;
+EXPORT_SYMBOL(exported_variable);
+
+void local_function(void) {}
+int local_variable = 2;
diff --git a/tests/data/test-symtab/kernel/single_variable_gpl.c b/tests/data/test-symtab/kernel/single_variable_gpl.c
new file mode 100644
index 000000000000..552e9b500fc1
--- /dev/null
+++ b/tests/data/test-symtab/kernel/single_variable_gpl.c
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+int exported_variable_gpl = 1;
+EXPORT_SYMBOL_GPL(exported_variable_gpl);
+
+void local_function(void) {}
+int local_variable = 2;
diff --git a/tests/test-symtab.cc b/tests/test-symtab.cc
index 62f8998af5d0..20e3071c7259 100644
--- a/tests/test-symtab.cc
+++ b/tests/test-symtab.cc
@@ -52,8 +52,9 @@ read_corpus(const std::string path, corpus_sptr& result)
environment_sptr env(new environment);
const std::vector<char**> debug_info_root_paths;
- read_context_sptr ctxt =
- create_read_context(absolute_path, debug_info_root_paths, env.get());
+ read_context_sptr ctxt = create_read_context(
+ absolute_path, debug_info_root_paths, env.get(),
+ /* load_all_type = */ true, /* linux_kernel_mode = */ true);
dwarf_reader::status status = dwarf_reader::STATUS_UNKNOWN;
result = read_corpus_from_elf(*ctxt, status);
@@ -105,7 +106,7 @@ assert_symbol_count(const std::string& path,
const dwarf_reader::status status = read_corpus(path, corpus_ptr);
REQUIRE(corpus_ptr);
- REQUIRE(status == dwarf_reader::STATUS_OK);
+ REQUIRE((status & dwarf_reader::STATUS_OK));
const corpus& corpus = *corpus_ptr;
if (function_symbols != N)
@@ -203,3 +204,90 @@ TEST_CASE("Symtab::SimpleSymtabs", "[symtab, basic]")
const corpus_sptr& corpus = assert_symbol_count(binary, 0, 0, 1, 1);
}
}
+
+static const char* kernel_versions[] = { "4.14", "4.19", "5.4", "5.6" };
+static const size_t nr_kernel_versions =
+ sizeof(kernel_versions) / sizeof(kernel_versions[0]);
+
+TEST_CASE("Symtab::SimpleKernelSymtabs", "[symtab, basic, kernel, ksymtab]")
+{
+ for (size_t i = 0; i < nr_kernel_versions; ++i)
+ {
+ const std::string base_path =
+ "kernel-" + std::string(kernel_versions[i]) + "/";
+
+ GIVEN("The binaries in " + base_path)
+ {
+
+ GIVEN("a kernel module with no exported symbols")
+ {
+ // TODO: should pass, but does currently not as empty tables are
+ // treated
+ // like the error case, but this is an edge case anyway.
+ // assert_symbol_count(base_path + "empty.so");
+ }
+
+ GIVEN("a kernel module with a single exported function")
+ {
+ const std::string binary = base_path + "single_function.ko";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 1, 0);
+ const elf_symbol_sptr& symbol =
+ corpus->lookup_function_symbol("exported_function");
+ REQUIRE(symbol);
+ CHECK(!corpus->lookup_variable_symbol("exported_function"));
+ CHECK(symbol == corpus->lookup_function_symbol(*symbol));
+ CHECK(symbol != corpus->lookup_variable_symbol(*symbol));
+ }
+
+ GIVEN("a kernel module with a single GPL exported function")
+ {
+ const std::string binary = base_path + "single_function_gpl.ko";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 1, 0);
+ const elf_symbol_sptr& symbol =
+ corpus->lookup_function_symbol("exported_function_gpl");
+ REQUIRE(symbol);
+ CHECK(!corpus->lookup_variable_symbol("exported_function_gpl"));
+ CHECK(symbol == corpus->lookup_function_symbol(*symbol));
+ CHECK(symbol != corpus->lookup_variable_symbol(*symbol));
+ }
+
+ GIVEN("a binary with a single exported variable")
+ {
+ const std::string binary = base_path + "single_variable.ko";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 0, 1);
+ const elf_symbol_sptr& symbol =
+ corpus->lookup_variable_symbol("exported_variable");
+ REQUIRE(symbol);
+ CHECK(!corpus->lookup_function_symbol("exported_variable"));
+ CHECK(symbol == corpus->lookup_variable_symbol(*symbol));
+ CHECK(symbol != corpus->lookup_function_symbol(*symbol));
+ }
+
+ GIVEN("a binary with a single GPL exported variable")
+ {
+ const std::string binary = base_path + "single_variable_gpl.ko";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 0, 1);
+ const elf_symbol_sptr& symbol =
+ corpus->lookup_variable_symbol("exported_variable_gpl");
+ REQUIRE(symbol);
+ CHECK(!corpus->lookup_function_symbol("exported_variable_gpl"));
+ CHECK(symbol == corpus->lookup_variable_symbol(*symbol));
+ CHECK(symbol != corpus->lookup_function_symbol(*symbol));
+ }
+
+ GIVEN("a binary with one function and one variable (GPL) exported")
+ {
+ const std::string binary = base_path + "one_of_each.ko";
+ const corpus_sptr& corpus = assert_symbol_count(binary, 2, 2);
+ CHECK(corpus->lookup_function_symbol("exported_function"));
+ CHECK(!corpus->lookup_variable_symbol("exported_function"));
+ CHECK(corpus->lookup_function_symbol("exported_function_gpl"));
+ CHECK(!corpus->lookup_variable_symbol("exported_function_gpl"));
+ CHECK(corpus->lookup_variable_symbol("exported_variable"));
+ CHECK(!corpus->lookup_function_symbol("exported_variable"));
+ CHECK(corpus->lookup_variable_symbol("exported_variable_gpl"));
+ CHECK(!corpus->lookup_function_symbol("exported_variable_gpl"));
+ }
+ }
+ }
+}
--
2.26.2.761.g0e0b3e54be-goog
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] tests: Add symtab test suite
2020-05-18 11:50 [PATCH 1/2] tests: Add symtab test suite Matthias Maennich
2020-05-18 11:50 ` [PATCH 2/2] tests: Add kernel " Matthias Maennich
@ 2020-05-26 14:00 ` Dodji Seketeli
2020-05-26 15:36 ` Dodji Seketeli
2020-05-27 9:06 ` Dodji Seketeli
2 siblings, 1 reply; 6+ messages in thread
From: Dodji Seketeli @ 2020-05-26 14:00 UTC (permalink / raw)
To: Matthias Maennich; +Cc: libabigail, gprocida, kernel-team
Hello,
Matthias Maennich <maennich@google.com> a écrit:
[...]
> +++ b/tests/test-symtab.cc
> +TEST_CASE("Symtab::Empty", "[symtab, basic]")
> +{
> + const std::string binary = "basic/empty.so";
You see, the main criteria I care about in testing is actually the
capacity for someone who is running the test to debug it (when it fails)
without having to know about the details about a particular testing
framework. I know other people favor "fancy test outputs" and other
niceties. I don't really care about those :-) What I care the most
about is to be able to pratically debug and fix stuff because I think
that's what matters ultimately, fixing stuff to make it work.
That means, I should be able to run the test under the debugger, set a
breakpoint in the source code of the test that I am reading and go from
there.
So for instance, in this example, I can't do that. I can't set a
breakpoint at the line where the variable "binary" is defined, without
knowing about the function that is automatically generated by the macro
TEST_CASE("blah") etc. To me, that's a real loss of functionality
compared to the other libabigail tests. I was a bit reluctant to accept
the use of libCatch, because of that. But I think there is a middle
ground we can strike here.
How about we decide that each test case should be its own function? I.e,
having:
void
test_case1()
{
//blah.
}
and then
TEST_CASE("Symtab::Empty", "[symtab, basic]")
{
test_case1();
}
That way, when the "Symtab::Empty" test fails, I can do:
$ gdb --args runtestsymtab
> break test_case1
> run
And then break inside test_case1 and work from there.
Or something along those lines. This might seem like a minor point to
you today, but when we are gone and someone else has (or maybe us 10
years from now when we forgot everything about today) to fix issues
raised by this test failing, being able to single step from the failing
test will prove invaluable. So I really care about this.
What do you think? I am probably missing something. Maybe you have a better idea?
Cheers,
--
Dodji
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] tests: Add symtab test suite
2020-05-26 14:00 ` [PATCH 1/2] tests: Add " Dodji Seketeli
@ 2020-05-26 15:36 ` Dodji Seketeli
0 siblings, 0 replies; 6+ messages in thread
From: Dodji Seketeli @ 2020-05-26 15:36 UTC (permalink / raw)
To: Matthias Maennich; +Cc: kernel-team, libabigail, gprocida
Dodji Seketeli <dodji@seketeli.org> a écrit:
[...]
> So for instance, in this example, I can't do that. I can't set a
> breakpoint at the line where the variable "binary" is defined, without
> knowing about the function that is automatically generated by the macro
> TEST_CASE("blah") etc.
Err, I was wrong here. The reason why I couldn't do it was that the test
wasn't being compiled with debug info because I screwed up my
environment, of course.
So, my bad. I take what I have said back. Sorry :-(
I'll go ahead with the review in a subsequent message then.
Thanks!
Cheers,
--
Dodji
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] tests: Add symtab test suite
2020-05-18 11:50 [PATCH 1/2] tests: Add symtab test suite Matthias Maennich
2020-05-18 11:50 ` [PATCH 2/2] tests: Add kernel " Matthias Maennich
2020-05-26 14:00 ` [PATCH 1/2] tests: Add " Dodji Seketeli
@ 2020-05-27 9:06 ` Dodji Seketeli
2 siblings, 0 replies; 6+ messages in thread
From: Dodji Seketeli @ 2020-05-27 9:06 UTC (permalink / raw)
To: Matthias Maennich; +Cc: libabigail, gprocida, kernel-team
Matthias Maennich <maennich@google.com> a écrit:
[...]
> tests/data/test-symtab/basic/Makefile | 19 ++
This file is missing from the ChangeLog part of the commit log. So I
have added it there.
[...]
> * tests/Makefile.am: add new test runtestsymtab
> * tests/data/Makefile.am: add new test data for runtestsymtab
> * tests/data/test-symtab/basic/empty.c: New test case source.
> * tests/data/test-symtab/basic/link_against_me.c: Likewise.
> * tests/data/test-symtab/basic/no_debug_info.c: Likewise.
> * tests/data/test-symtab/basic/one_function_one_variable.c: Likewise.
> * tests/data/test-symtab/basic/one_function_one_variable_undefined.c: Likewise.
> * tests/data/test-symtab/basic/single_function.c: Likewise.
> * tests/data/test-symtab/basic/single_undefined_function.c: Likewise.
> * tests/data/test-symtab/basic/single_undefined_variable.c: Likewise.
> * tests/data/test-symtab/basic/single_variable.c: Likewise.
> * tests/data/test-symtab/basic/empty.so: New test data.
> * tests/data/test-symtab/basic/link_against_me.so: Likewise.
> * tests/data/test-symtab/basic/no_debug_info.so: Likewise.
> * tests/data/test-symtab/basic/one_function_one_variable.so: Likewise.
> * tests/data/test-symtab/basic/one_function_one_variable_undefined.so: Likewise.
> * tests/data/test-symtab/basic/single_function.so: Likewise.
> * tests/data/test-symtab/basic/single_undefined_function.so: Likewise.
> * tests/data/test-symtab/basic/single_undefined_variable.so: Likewise.
> * tests/data/test-symtab/basic/single_variable.so: Likewise.
> * tests/test-symtab.cc: New test driver.
>
> Signed-off-by: Matthias Maennich <maennich@google.com>
Acked-by: Dodji Seketeli <dodji@redhat.com>
Applied to master with the change above, thanks!
Cheers,
--
Dodji
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] tests: Add kernel symtab test suite
2020-05-18 11:50 ` [PATCH 2/2] tests: Add kernel " Matthias Maennich
@ 2020-05-27 9:15 ` Dodji Seketeli
0 siblings, 0 replies; 6+ messages in thread
From: Dodji Seketeli @ 2020-05-27 9:15 UTC (permalink / raw)
To: Matthias Maennich; +Cc: libabigail, gprocida, kernel-team
Matthias Maennich <maennich@google.com> a écrit:
[...]
> +++ b/tests/data/Makefile.am
[...]
> +test-symtab/kernel-5.3/Makefile \
> +test-symtab/kernel-5.3/empty.c \
> +test-symtab/kernel-5.3/empty.ko \
> +test-symtab/kernel-5.3/one_of_each.c \
> +test-symtab/kernel-5.3/one_of_each.ko \
> +test-symtab/kernel-5.3/single_function.c \
> +test-symtab/kernel-5.3/single_function.ko \
> +test-symtab/kernel-5.3/single_function_gpl.c \
> +test-symtab/kernel-5.3/single_function_gpl.ko \
> +test-symtab/kernel-5.3/single_variable.c \
> +test-symtab/kernel-5.3/single_variable.ko \
> +test-symtab/kernel-5.3/single_variable_gpl.c \
> +test-symtab/kernel-5.3/single_variable_gpl.ko \
These files are not present in the source distribution so listing them
here makes 'make distcheck' to fail, obviously. So I removed them from
here.
[...]
> * tests/data/Makefile.am: add new test data for runtestsymtab
> * tests/data/test-symtab/kernel-4.14/Makefile: New test case makefile.
> * tests/data/test-symtab/kernel-4.14/empty.c: Likewise.
> * tests/data/test-symtab/kernel-4.14/one_of_each.c: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_function.c: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_function_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_variable.c: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_variable_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-4.14/empty.ko: New test data.
> * tests/data/test-symtab/kernel-4.14/one_of_each.ko: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_function.ko: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_function_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_variable.ko: Likewise.
> * tests/data/test-symtab/kernel-4.14/single_variable_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-4.19/Makefile: New test case makefile.
> * tests/data/test-symtab/kernel-4.19/empty.c: Likewise.
> * tests/data/test-symtab/kernel-4.19/one_of_each.c: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_function.c: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_function_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_variable.c: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_variable_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-4.19/empty.ko: New test data.
> * tests/data/test-symtab/kernel-4.19/one_of_each.ko: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_function.ko: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_function_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_variable.ko: Likewise.
> * tests/data/test-symtab/kernel-4.19/single_variable_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-5.4/Makefile: New test case makefile.
> * tests/data/test-symtab/kernel-5.4/empty.c: Likewise.
> * tests/data/test-symtab/kernel-5.4/one_of_each.c: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_function.c: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_function_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_variable.c: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_variable_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-5.4/empty.ko: New test data.
> * tests/data/test-symtab/kernel-5.4/one_of_each.ko: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_function.ko: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_function_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_variable.ko: Likewise.
> * tests/data/test-symtab/kernel-5.4/single_variable_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-5.6/Makefile: New test case makefile.
> * tests/data/test-symtab/kernel-5.6/empty.c: Likewise.
> * tests/data/test-symtab/kernel-5.6/one_of_each.c: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_function.c: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_function_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_variable.c: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_variable_gpl.c: Likewise.
> * tests/data/test-symtab/kernel-5.6/empty.ko: New test data.
> * tests/data/test-symtab/kernel-5.6/one_of_each.ko: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_function.ko: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_function_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_variable.ko: Likewise.
> * tests/data/test-symtab/kernel-5.6/single_variable_gpl.ko: Likewise.
> * tests/data/test-symtab/kernel/Makefile: New test case source file.
> * tests/data/test-symtab/kernel/empty.c: Likewise.
> * tests/data/test-symtab/kernel/one_of_each.c: Likewise.
> * tests/data/test-symtab/kernel/single_function.c: Likewise.
> * tests/data/test-symtab/kernel/single_function_gpl.c: Likewise.
> * tests/data/test-symtab/kernel/single_variable.c: Likewise.
> * tests/data/test-symtab/kernel/single_variable_gpl.c: Likewise.
> * tests/test-symtab.cc: New test case to test kernel symtabs.
>
> Signed-off-by: Matthias Maennich <maennich@google.com>
Acked-by: Dodji Seketeli <dodji@redhat.com>
Applied to master, thanks!
Cheers,
--
Dodji
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-05-27 9:15 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-18 11:50 [PATCH 1/2] tests: Add symtab test suite Matthias Maennich
2020-05-18 11:50 ` [PATCH 2/2] tests: Add kernel " Matthias Maennich
2020-05-27 9:15 ` Dodji Seketeli
2020-05-26 14:00 ` [PATCH 1/2] tests: Add " Dodji Seketeli
2020-05-26 15:36 ` Dodji Seketeli
2020-05-27 9:06 ` Dodji Seketeli
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