[lld] r221508 - Fix Mach-O unit tests breakage on Windows
Rui Ueyama
ruiu at google.com
Thu Nov 6 18:54:52 PST 2014
Author: ruiu
Date: Thu Nov 6 20:54:52 2014
New Revision: 221508
URL: http://llvm.org/viewvc/llvm-project?rev=221508&view=rev
Log:
Fix Mach-O unit tests breakage on Windows
Mach-O normalized file reader assumes that the entire file is aligned
to a large boundary. If the in-memory file is not aligned properly, it will
abort with an assertion failure in read32/read64. This patch forces the
in-memory file for the unit test to be aligned at 64-byte boundary.
I found these tests are failing on Windows, but theoretically they could
fail on other platform.
Modified:
lld/trunk/unittests/MachOTests/MachONormalizedFileBinaryReaderTests.cpp
Modified: lld/trunk/unittests/MachOTests/MachONormalizedFileBinaryReaderTests.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/unittests/MachOTests/MachONormalizedFileBinaryReaderTests.cpp?rev=221508&r1=221507&r2=221508&view=diff
==============================================================================
--- lld/trunk/unittests/MachOTests/MachONormalizedFileBinaryReaderTests.cpp (original)
+++ lld/trunk/unittests/MachOTests/MachONormalizedFileBinaryReaderTests.cpp Thu Nov 6 20:54:52 2014
@@ -31,9 +31,17 @@ fromBinary(const uint8_t bytes[], unsign
return std::move(*r);
}
+// The Mach-O object reader uses functions such as read32 or read64
+// which don't allow unaligned access. Our in-memory object file
+// needs to be aligned to a larger boundary than uint8_t's.
+#if _MSC_VER
+#define FILEBYTES __declspec(align(64)) const uint8_t fileBytes[]
+#else
+#define FILEBYTES const uint8_t fileBytes[] __attribute__((aligned(64)))
+#endif
TEST(BinaryReaderTest, empty_obj_x86_64) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xcf, 0xfa, 0xed, 0xfe, 0x07, 0x00, 0x00, 0x01,
0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00, 0x00,
@@ -69,7 +77,7 @@ TEST(BinaryReaderTest, empty_obj_x86_64)
TEST(BinaryReaderTest, empty_obj_x86) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xce, 0xfa, 0xed, 0xfe, 0x07, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00,
@@ -101,7 +109,7 @@ TEST(BinaryReaderTest, empty_obj_x86) {
TEST(BinaryReaderTest, empty_obj_ppc) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xfe, 0xed, 0xfa, 0xce, 0x00, 0x00, 0x00, 0x12,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x7c,
@@ -133,7 +141,7 @@ TEST(BinaryReaderTest, empty_obj_ppc) {
TEST(BinaryReaderTest, empty_obj_armv7) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xce, 0xfa, 0xed, 0xfe, 0x0c, 0x00, 0x00, 0x00,
0x09, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00,
@@ -164,7 +172,7 @@ TEST(BinaryReaderTest, empty_obj_armv7)
}
TEST(BinaryReaderTest, empty_obj_x86_64_arm7) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
#include "empty_obj_x86_armv7.txt"
};
std::unique_ptr<NormalizedFile> f =
@@ -187,7 +195,7 @@ TEST(BinaryReaderTest, empty_obj_x86_64_
}
TEST(BinaryReaderTest, hello_obj_x86_64) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xCF, 0xFA, 0xED, 0xFE, 0x07, 0x00, 0x00, 0x01,
0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00, 0x50, 0x01, 0x00, 0x00,
@@ -320,7 +328,7 @@ TEST(BinaryReaderTest, hello_obj_x86_64)
TEST(BinaryReaderTest, hello_obj_x86) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xCE, 0xFA, 0xED, 0xFE, 0x07, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00, 0x28, 0x01, 0x00, 0x00,
@@ -452,7 +460,7 @@ TEST(BinaryReaderTest, hello_obj_x86) {
TEST(BinaryReaderTest, hello_obj_armv7) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xCE, 0xFA, 0xED, 0xFE, 0x0C, 0x00, 0x00, 0x00,
0x09, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00, 0x28, 0x01, 0x00, 0x00,
@@ -594,7 +602,7 @@ TEST(BinaryReaderTest, hello_obj_armv7)
TEST(BinaryReaderTest, hello_obj_ppc) {
- const uint8_t fileBytes[] = {
+ FILEBYTES = {
0xFE, 0xED, 0xFA, 0xCE, 0x00, 0x00, 0x00, 0x12,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x01, 0x28,
@@ -738,4 +746,3 @@ TEST(BinaryReaderTest, hello_obj_ppc) {
writeBinary(*f, "/tmp/foo.o");
}
-
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