Read the tpidr register from NT_ARM_TLS core dump notes on FreeBSD/Aarch64.
diff --git a/gdb/aarch64-fbsd-tdep.c b/gdb/aarch64-fbsd-tdep.c
index 32f4418..ed1b843 100644
--- a/gdb/aarch64-fbsd-tdep.c
+++ b/gdb/aarch64-fbsd-tdep.c
@@ -142,10 +142,42 @@ aarch64_fbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
void *cb_data,
const struct regcache *regcache)
{
+ aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
+
cb (".reg", AARCH64_FBSD_SIZEOF_GREGSET, AARCH64_FBSD_SIZEOF_GREGSET,
&aarch64_fbsd_gregset, NULL, cb_data);
cb (".reg2", AARCH64_FBSD_SIZEOF_FPREGSET, AARCH64_FBSD_SIZEOF_FPREGSET,
&aarch64_fbsd_fpregset, NULL, cb_data);
+
+ if (tdep->has_tls ())
+ {
+ const struct regcache_map_entry aarch64_fbsd_tls_regmap[] =
+ {
+ { 1, tdep->tls_regnum, 8 },
+ { 0 }
+ };
+
+ const struct regset aarch64_fbsd_tls_regset =
+ {
+ aarch64_fbsd_tls_regmap,
+ regcache_supply_regset, regcache_collect_regset
+ };
+
+ cb (".reg-aarch-tls", AARCH64_FBSD_SIZEOF_TLSREGSET,
+ AARCH64_FBSD_SIZEOF_TLSREGSET, &aarch64_fbsd_tls_regset,
+ "TLS register", cb_data);
+ }
+}
+
+/* Implement the "core_read_description" gdbarch method. */
+
+static const struct target_desc *
+aarch64_fbsd_core_read_description (struct gdbarch *gdbarch,
+ struct target_ops *target, bfd *abfd)
+{
+ asection *tls = bfd_get_section_by_name (abfd, ".reg-aarch-tls");
+
+ return aarch64_read_description (0, false, false, tls != nullptr);
}
/* Implement the 'init_osabi' method of struct gdb_osabi_handler. */
@@ -168,6 +200,8 @@ aarch64_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_iterate_over_regset_sections
(gdbarch, aarch64_fbsd_iterate_over_regset_sections);
+ set_gdbarch_core_read_description (gdbarch,
+ aarch64_fbsd_core_read_description);
}
void _initialize_aarch64_fbsd_tdep ();
diff --git a/gdb/aarch64-fbsd-tdep.h b/gdb/aarch64-fbsd-tdep.h
index fc8fbee..7419ea6 100644
--- a/gdb/aarch64-fbsd-tdep.h
+++ b/gdb/aarch64-fbsd-tdep.h
@@ -32,6 +32,9 @@
alignment. */
#define AARCH64_FBSD_SIZEOF_FPREGSET (33 * V_REGISTER_SIZE)
+/* The TLS regset consists of a single register. */
+#define AARCH64_FBSD_SIZEOF_TLSREGSET (X_REGISTER_SIZE)
+
extern const struct regset aarch64_fbsd_gregset;
extern const struct regset aarch64_fbsd_fpregset;
