gdb: test vfork + follow parent + detach-on-fork off

[deliverable/binutils-gdb.git] / gdb / aarch64-tdep.c

diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index 685c50b84dabb27a537d482e3125635789eb8578..4b5af4616af5d591276df531d0898854a9ef82d0 100644 (file)
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -172,6 +172,12 @@ static const char *const aarch64_pauth_register_names[] =
   "pauth_cmask"
 };
 
+static const char *const aarch64_mte_register_names[] =
+{
+  /* Tag Control Register.  */
+  "tag_ctl"
+};
+
 /* AArch64 prologue cache structure.  */
 struct aarch64_prologue_cache
 {
@@ -621,7 +627,6 @@ aarch64_analyze_prologue_test (void)
 {
   struct gdbarch_info info;
 
-  gdbarch_info_init (&info);
   info.bfd_arch_info = bfd_scan_arch ("aarch64");
 
   struct gdbarch *gdbarch = gdbarch_find_by_info (info);
@@ -1111,6 +1116,7 @@ aarch64_prologue_prev_register (struct frame_info *this_frame,
 /* AArch64 prologue unwinder.  */
 static frame_unwind aarch64_prologue_unwind =
 {
+  "aarch64 prologue",
   NORMAL_FRAME,
   aarch64_prologue_frame_unwind_stop_reason,
   aarch64_prologue_this_id,
@@ -1205,6 +1211,7 @@ aarch64_stub_unwind_sniffer (const struct frame_unwind *self,
 /* AArch64 stub unwinder.  */
 static frame_unwind aarch64_stub_unwind =
 {
+  "aarch64 stub",
   NORMAL_FRAME,
   aarch64_stub_frame_unwind_stop_reason,
   aarch64_stub_this_id,
@@ -3346,6 +3353,7 @@ aarch64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   bool valid_p = true;
   int i, num_regs = 0, num_pseudo_regs = 0;
   int first_pauth_regnum = -1, pauth_ra_state_offset = -1;
+  int first_mte_regnum = -1;
 
   /* Use the vector length passed via the target info.  Here -1 is used for no
      SVE, and 0 is unset.  If unset then use the vector length from the existing
@@ -3383,6 +3391,8 @@ aarch64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   feature_fpu = tdesc_find_feature (tdesc, "org.gnu.gdb.aarch64.fpu");
   feature_sve = tdesc_find_feature (tdesc, "org.gnu.gdb.aarch64.sve");
   feature_pauth = tdesc_find_feature (tdesc, "org.gnu.gdb.aarch64.pauth");
+  const struct tdesc_feature *feature_mte
+    = tdesc_find_feature (tdesc, "org.gnu.gdb.aarch64.mte");
 
   if (feature_core == nullptr)
     return nullptr;
@@ -3453,6 +3463,20 @@ aarch64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       num_pseudo_regs += 1;    /* Count RA_STATE pseudo register.  */
     }
 
+  /* Add the MTE registers.  */
+  if (feature_mte != NULL)
+    {
+      first_mte_regnum = num_regs;
+      /* Validate the descriptor provides the mandatory MTE registers and
+        allocate their numbers.  */
+      for (i = 0; i < ARRAY_SIZE (aarch64_mte_register_names); i++)
+       valid_p &= tdesc_numbered_register (feature_mte, tdesc_data.get (),
+                                           first_mte_regnum + i,
+                                           aarch64_mte_register_names[i]);
+
+      num_regs += i;
+    }
+
   if (!valid_p)
     return nullptr;
 
@@ -3470,6 +3494,7 @@ aarch64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   tdep->pauth_reg_base = first_pauth_regnum;
   tdep->pauth_ra_state_regnum = (feature_pauth == NULL) ? -1
                                : pauth_ra_state_offset + num_regs;
+  tdep->mte_reg_base = first_mte_regnum;
 
   set_gdbarch_push_dummy_call (gdbarch, aarch64_push_dummy_call);
   set_gdbarch_frame_align (gdbarch, aarch64_frame_align);
@@ -3639,11 +3664,11 @@ When on, AArch64 specific debugging is enabled."),
          { \
            unsigned int mem_len = LENGTH; \
            if (mem_len) \
-           { \
-             MEMS =  XNEWVEC (struct aarch64_mem_r, mem_len);  \
-             memcpy(&MEMS->len, &RECORD_BUF[0], \
-                    sizeof(struct aarch64_mem_r) * LENGTH); \
-           } \
+             { \
+               MEMS =  XNEWVEC (struct aarch64_mem_r, mem_len);  \
+               memcpy(&MEMS->len, &RECORD_BUF[0], \
+                      sizeof(struct aarch64_mem_r) * LENGTH); \
+             } \
          } \
          while (0)
 
@@ -4535,7 +4560,6 @@ aarch64_process_record_test (void)
   struct gdbarch_info info;
   uint32_t ret;
 
-  gdbarch_info_init (&info);
   info.bfd_arch_info = bfd_scan_arch ("aarch64");
 
   struct gdbarch *gdbarch = gdbarch_find_by_info (info);