提交: 9e45a8561d934bc1ae07ff4356312afb69e0bd00 - binutils_os216 (git)

GNU Binutils with patches for OS216

Commit MetaInfo

• 修訂: 9e45a8561d934bc1ae07ff4356312afb69e0bd00 (tree)
• 時間: 2020-06-16 21:58:32
• 作者: Luis Machado <luis.machado@lina...>
• Commiter: Luis Machado

Log Message

Add unit testing for logical tag set/get

Add some unit testing to exercise setting/getting logical tags in the
AArch64 implementation.

gdb/ChangeLog:

YYYY-MM-DD Luis Machado <[e-mail]>

* aarch64-linux-tdep.c: Include gdbsupport/selftest.h.
(aarch64_linux_ltag_tests): New function.
(_initialize_aarch64_linux_tdep): Register aarch64_linux_ltag_tests.

Change Summary

• modified: gdb/aarch64-linux-tdep.c

差異

--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -52,6 +52,8 @@
 
 #include "arch/aarch64-linux.h"
 
+#include "gdbsupport/selftest.h"
+
 /* Signal frame handling.
 
       +------------+  ^
@@ -1956,10 +1958,39 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_gdbarch_gcc_target_options (gdbarch, aarch64_linux_gcc_target_options);
 }
 
+#if GDB_SELF_TEST
+
+namespace selftests {
+
+/* Verify functions to read and write logical tags.  */
+
+static void
+aarch64_linux_ltag_tests (void)
+{
+  /* We have 4 bits of tags, but we test writing all the bits of the top
+     byte of address.  */
+  for (int i = 0; i < 1 << 8; i++)
+    {
+      CORE_ADDR addr = ((CORE_ADDR) i << 56) | 0xdeadbeef;
+      SELF_CHECK (aarch64_linux_get_ltag (addr) == (i & 0xf));
+
+      addr = aarch64_linux_set_ltag (0xdeadbeef, i);
+      SELF_CHECK (addr = ((CORE_ADDR) (i & 0xf) << 56) | 0xdeadbeef);
+    }
+}
+
+} // namespace selftests
+#endif /* GDB_SELF_TEST */
+
 void _initialize_aarch64_linux_tdep ();
 void
 _initialize_aarch64_linux_tdep ()
 {
   gdbarch_register_osabi (bfd_arch_aarch64, 0, GDB_OSABI_LINUX,
 			  aarch64_linux_init_abi);
+
+#if GDB_SELF_TEST
+  selftests::register_test ("aarch64-linux-tagged-address",
+			    selftests::aarch64_linux_ltag_tests);
+#endif
 }