Fix tag_ctl register size in the core file.

This register should be 64 bits in size, but the current code only saves
32 bits. This is due to an early assumption that tag_ctl would be 32 bits
in size.

gdb/ChangeLog:

2021-06-28  Luis Machado  <luis.machado@linaro.org>

	* aarch64-linux-tdep.c
	(aarch64_linux_iterate_over_regset_sections): Update tag_ctl register
	size.
	* aarch64-linux-tdep.h (AARCH64_LINUX_SIZEOF_MTE_REGSET): Set to
	8 and update comments.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 2c4719781aa0b5e6abcbc4cf12641e855e6d523f..0d80f3dda0b5f3bcee7a7598d8548c30ce05cb7b 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2021-06-28  Luis Machado  <luis.machado@linaro.org>
+
+       * aarch64-linux-tdep.c
+       (aarch64_linux_iterate_over_regset_sections): Update tag_ctl register
+       size.
+       * aarch64-linux-tdep.h (AARCH64_LINUX_SIZEOF_MTE_REGSET): Set to
+       8 and update comments.
+
 2021-06-28  Simon Marchi  <simon.marchi@polymtl.ca>
 
        * gdbarch.sh (struct gdbarch_info): Initialize fields, add

diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
index 9602fc4b29a9e11c9b5a7f6f325fc011cd87de13..d541c6a32d013f65128554456a2ffa68f99301a9 100644 (file)
--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -735,7 +735,7 @@ aarch64_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
       /* Create this on the fly in order to handle the variable location.  */
       const struct regcache_map_entry mte_regmap[] =
        {
-         { 1, tdep->mte_reg_base, 4},
+         { 1, tdep->mte_reg_base, 8},
          { 0 }
        };
 

diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
index 62a6da83494d21558ef05744282bfdc735cb4b6e..0c731ca470bbe0974785d9dbe4638fb4847d1746 100644 (file)
--- a/gdb/aarch64-linux-tdep.h
+++ b/gdb/aarch64-linux-tdep.h
@@ -36,8 +36,8 @@
 /* The pauth regset consists of 2 X sized registers.  */
 #define AARCH64_LINUX_SIZEOF_PAUTH (2 * X_REGISTER_SIZE)
 
-/* The MTE regset consists of a 32-bit register.  */
-#define AARCH64_LINUX_SIZEOF_MTE_REGSET (4)
+/* The MTE regset consists of a 64-bit register.  */
+#define AARCH64_LINUX_SIZEOF_MTE_REGSET (8)
 
 extern const struct regset aarch64_linux_gregset;
 extern const struct regset aarch64_linux_fpregset;