gas: target string hash tables

This allocates entries added to the string hash tables on the notes
obstack, so that at least those do not leak.  A followup patch will
switch over the str_hash allocation to notes_calloc, which is why I
haven't implemented deleting all the target string hash tables.

	* config/obj-coff-seh.c (get_pxdata_name, alloc_pxdata_item): Use
	notes obstack for string hash table entries.
	* config/tc-alpha.c (get_alpha_reloc_tag, md_begin): Likewise.
	* config/tc-h8300.c (md_begin): Likewise.
	* config/tc-ia64.c (dot_rot, dot_pred_rel, dot_alias): Likewise.
	* config/tc-nds32.c (nds32_relax_hint): Likewise.
	* config/tc-riscv.c (riscv_init_csr_hash): Likewise.
	* config/tc-score.c (s3_insert_reg): Likewise.
	(s3_build_score_ops_hsh, s3_build_dependency_insn_hsh): Likewise.
	* config/tc-score7.c (s7_build_score_ops_hsh): Likewise.
	(s7_build_dependency_insn_hsh): Likewise.
	* config/tc-tic4x.c (tic4x_asg): Likewise.

9 files changed, 45 insertions, 81 deletions

diff --git a/gas/config/obj-coff-seh.c b/gas/config/obj-coff-seh.c
index c30eda9..0b43c8b 100644
--- a/gas/config/obj-coff-seh.c
+++ b/gas/config/obj-coff-seh.c
@@ -64,7 +64,7 @@ get_pxdata_name (segT seg, const char *base_name)
   else
     name = dollar;
 
-  sname = concat (base_name, name, NULL);
+  sname = notes_concat (base_name, name, NULL);
 
   return sname;
 }
@@ -75,8 +75,7 @@ alloc_pxdata_item (segT seg, int subseg, char *name)
 {
   struct seh_seg_list *r;
 
-  r = (struct seh_seg_list *)
-    xmalloc (sizeof (struct seh_seg_list) + strlen (name));
+  r = notes_alloc (sizeof (struct seh_seg_list) + strlen (name));
   r->seg = seg;
   r->subseg = subseg;
   r->seg_name = name;
@@ -145,7 +144,7 @@ seh_hash_find_or_make (segT cseg, const char *base_name)
       seh_hash_insert (item->seg_name, item);
     }
   else
-    free (name);
+    notes_free (name);
 
   return item;
 }
diff --git a/gas/config/tc-alpha.c b/gas/config/tc-alpha.c
index ecc6a2f..c305acc 100644
--- a/gas/config/tc-alpha.c
+++ b/gas/config/tc-alpha.c
@@ -594,8 +594,7 @@ get_alpha_reloc_tag (long sequence)
     {
       size_t len = strlen (buffer);
 
-      info = (struct alpha_reloc_tag *)
-          xcalloc (sizeof (struct alpha_reloc_tag) + len, 1);
+      info = notes_calloc (sizeof (struct alpha_reloc_tag) + len, 1);
 
       info->segment = now_seg;
       info->sequence = sequence;
@@ -5434,10 +5433,12 @@ md_begin (void)
 
       if ((slash = strchr (name, '/')) != NULL)
 	{
-	  char *p = XNEWVEC (char, strlen (name));
+	  size_t len = strlen (name);
+	  char *p = notes_alloc (len);
+	  size_t len1 = slash - name;
 
-	  memcpy (p, name, slash - name);
-	  strcpy (p + (slash - name), slash + 1);
+	  memcpy (p, name, len1);
+	  memcpy (p + len1, slash + 1, len - len1);
 
 	  (void) str_hash_insert (alpha_opcode_hash, p, &alpha_opcodes[i], 0);
 	  /* Ignore failures -- the opcode table does duplicate some
diff --git a/gas/config/tc-h8300.c b/gas/config/tc-h8300.c
index 690055e..ac1dc07 100644
--- a/gas/config/tc-h8300.c
+++ b/gas/config/tc-h8300.c
@@ -235,14 +235,12 @@ md_begin (void)
   unsigned int nopcodes;
   struct h8_opcode *p, *p1;
   struct h8_instruction *pi;
-  char prev_buffer[100];
   int idx = 0;
 
   if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, default_mach))
     as_warn (_("could not set architecture and machine"));
 
   opcode_hash_control = str_htab_create ();
-  prev_buffer[0] = 0;
 
   nopcodes = sizeof (h8_opcodes) / sizeof (struct h8_opcode);
 
@@ -266,7 +264,7 @@ md_begin (void)
 	break;
       /* Strip off any . part when inserting the opcode and only enter
 	 unique codes into the hash table.  */
-      dst = buffer = XNEWVEC (char, strlen (src) + 1);
+      dst = buffer = notes_alloc (strlen (src) + 1);
       while (*src)
 	{
 	  if (*src == '.')
@@ -283,7 +281,6 @@ md_begin (void)
       if (cmplen == 0)
 	cmplen = len;
       str_hash_insert (opcode_hash_control, buffer, pi, 0);
-      strcpy (prev_buffer, buffer);
       idx++;
 
       for (p = p1; p->name; p++)
diff --git a/gas/config/tc-ia64.c b/gas/config/tc-ia64.c
index 771071b..7fa7e57 100644
--- a/gas/config/tc-ia64.c
+++ b/gas/config/tc-ia64.c
@@ -4663,14 +4663,9 @@ dot_rot (int type)
 	}
 
       if (!*drpp)
-	{
-	  *drpp = XOBNEW (&notes, struct dynreg);
-	  memset (*drpp, 0, sizeof (*dr));
-	}
+	*drpp = notes_calloc (1, sizeof (**drpp));
 
-      name = XOBNEWVEC (&notes, char, len + 1);
-      memcpy (name, start, len);
-      name[len] = '\0';
+      name = notes_memdup (start, len, len + 1);
 
       dr = *drpp;
       dr->name = name;
@@ -4682,7 +4677,6 @@ dot_rot (int type)
       if (str_hash_insert (md.dynreg_hash, name, dr, 0) != NULL)
 	{
 	  as_bad (_("Attempt to redefine register set `%s'"), name);
-	  obstack_free (&notes, name);
 	  goto err;
 	}
 
@@ -5007,7 +5001,7 @@ dot_pred_rel (int type)
 	    type = 'c';
 	  else if (strcmp (form, "imply") == 0)
 	    type = 'i';
-	  obstack_free (&notes, form);
+	  notes_free (form);
 	}
       else if (*input_line_pointer == '@')
 	{
@@ -11781,9 +11775,7 @@ dot_alias (int section)
     }
 
   /* Make a copy of name string.  */
-  len = strlen (name) + 1;
-  obstack_grow (&notes, name, len);
-  name = obstack_finish (&notes);
+  name = notes_strdup (name);
 
   if (section)
     {
@@ -11806,8 +11798,7 @@ dot_alias (int section)
       if (strcmp (h->name, name))
 	as_bad (_("`%s' is already the alias of %s `%s'"),
 		alias, kind, h->name);
-      obstack_free (&notes, name);
-      obstack_free (&notes, alias);
+      notes_free (alias);
       goto out;
     }
 
@@ -11817,12 +11808,11 @@ dot_alias (int section)
     {
       if (strcmp (a, alias))
 	as_bad (_("%s `%s' already has an alias `%s'"), kind, name, a);
-      obstack_free (&notes, name);
-      obstack_free (&notes, alias);
+      notes_free (alias);
       goto out;
     }
 
-  h = XNEW (struct alias);
+  h = notes_alloc (sizeof (*h));
   h->file = as_where (&h->line);
   h->name = name;
 
diff --git a/gas/config/tc-nds32.c b/gas/config/tc-nds32.c
index 3ad227b..48893a5 100644
--- a/gas/config/tc-nds32.c
+++ b/gas/config/tc-nds32.c
@@ -4284,20 +4284,17 @@ nds32_relax_hint (int mode ATTRIBUTE_UNUSED)
   relocs = str_hash_find (nds32_hint_hash, name);
   if (relocs == NULL)
     {
-      relocs = XNEW (struct nds32_relocs_pattern);
-      memset (relocs, 0, sizeof (struct nds32_relocs_pattern));
+      relocs = notes_calloc (1, sizeof (*relocs));
       str_hash_insert (nds32_hint_hash, name, relocs, 0);
     }
   else
     {
       while (relocs->next)
-	relocs=relocs->next;
-      relocs->next = XNEW (struct nds32_relocs_pattern);
+	relocs = relocs->next;
+      relocs->next = notes_calloc (1, sizeof (*relocs));
       relocs = relocs->next;
-      memset (relocs, 0, sizeof (struct nds32_relocs_pattern));
     }
 
-  relocs->next = NULL;
   *input_line_pointer = saved_char;
   ignore_rest_of_line ();
 
diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c
index 7807dd0..291d07f 100644
--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -879,7 +879,7 @@ riscv_init_csr_hash (const char *name,
   if (!need_enrty)
     return;
 
-  entry = XNEW (struct riscv_csr_extra);
+  entry = notes_alloc (sizeof (*entry));
   entry->csr_class = class;
   entry->address = address;
   entry->define_version = define_version;
diff --git a/gas/config/tc-score.c b/gas/config/tc-score.c
index c2814a0..53712281 100644
--- a/gas/config/tc-score.c
+++ b/gas/config/tc-score.c
@@ -6255,20 +6255,14 @@ s3_s_score_lcomm (int bytes_p)
 static void
 s3_insert_reg (const struct s3_reg_entry *r, htab_t htab)
 {
-  int i = 0;
-  int len = strlen (r->name) + 2;
-  char *buf = XNEWVEC (char, len);
-  char *buf2 = XNEWVEC (char, len);
+  char *buf = notes_strdup (r->name);
+  char *p;
 
-  strcpy (buf + i, r->name);
-  for (i = 0; buf[i]; i++)
-    {
-      buf2[i] = TOUPPER (buf[i]);
-    }
-  buf2[i] = '\0';
+  for (p = buf; *p; p++)
+    *p = TOUPPER (*p);
 
+  str_hash_insert (htab, r->name, r, 0);
   str_hash_insert (htab, buf, r, 0);
-  str_hash_insert (htab, buf2, r, 0);
 }
 
 static void
@@ -6286,20 +6280,17 @@ static void
 s3_build_score_ops_hsh (void)
 {
   unsigned int i;
-  static struct obstack insn_obstack;
 
-  obstack_begin (&insn_obstack, 4000);
   for (i = 0; i < sizeof (s3_score_insns) / sizeof (struct s3_asm_opcode); i++)
     {
       const struct s3_asm_opcode *insn = s3_score_insns + i;
-      size_t len = strlen (insn->template_name);
+      size_t len = strlen (insn->template_name) + 1;
       struct s3_asm_opcode *new_opcode;
       char *template_name;
-      new_opcode = (struct s3_asm_opcode *)
-	obstack_alloc (&insn_obstack, sizeof (struct s3_asm_opcode));
-      template_name = (char *) obstack_alloc (& insn_obstack, len + 1);
 
-      strcpy (template_name, insn->template_name);
+      new_opcode = notes_alloc (sizeof (*new_opcode));
+      template_name = notes_memdup (insn->template_name, len, len);
+
       new_opcode->template_name = template_name;
       new_opcode->parms = insn->parms;
       new_opcode->value = insn->value;
@@ -6315,22 +6306,17 @@ static void
 s3_build_dependency_insn_hsh (void)
 {
   unsigned int i;
-  static struct obstack dependency_obstack;
 
-  obstack_begin (&dependency_obstack, 4000);
   for (i = 0; i < sizeof (s3_insn_to_dependency_table) / sizeof (s3_insn_to_dependency_table[0]); i++)
     {
       const struct s3_insn_to_dependency *tmp = s3_insn_to_dependency_table + i;
-      size_t len = strlen (tmp->insn_name);
+      size_t len = strlen (tmp->insn_name) + 1;
       struct s3_insn_to_dependency *new_i2n;
       char *buf;
 
-      new_i2n = (struct s3_insn_to_dependency *)
-	obstack_alloc (&dependency_obstack,
-		       sizeof (struct s3_insn_to_dependency));
-      buf = (char *) obstack_alloc (&dependency_obstack, len + 1);
+      new_i2n = notes_alloc (sizeof (*new_i2n));
+      buf = notes_memdup (tmp->insn_name, len, len);
 
-      strcpy (buf, tmp->insn_name);
       new_i2n->insn_name = buf;
       new_i2n->type = tmp->type;
       str_hash_insert (s3_dependency_insn_hsh, new_i2n->insn_name, new_i2n, 0);
diff --git a/gas/config/tc-score7.c b/gas/config/tc-score7.c
index c36945f..a2cde1fc 100644
--- a/gas/config/tc-score7.c
+++ b/gas/config/tc-score7.c
@@ -5085,20 +5085,17 @@ static void
 s7_build_score_ops_hsh (void)
 {
   unsigned int i;
-  static struct obstack insn_obstack;
 
-  obstack_begin (&insn_obstack, 4000);
   for (i = 0; i < sizeof (s7_score_insns) / sizeof (struct s7_asm_opcode); i++)
     {
       const struct s7_asm_opcode *insn = s7_score_insns + i;
-      size_t len = strlen (insn->template_name);
+      size_t len = strlen (insn->template_name) + 1;
       struct s7_asm_opcode *new_opcode;
       char *template_name;
-      new_opcode = (struct s7_asm_opcode *)
-          obstack_alloc (&insn_obstack, sizeof (struct s7_asm_opcode));
-      template_name = (char *) obstack_alloc (&insn_obstack, len + 1);
 
-      strcpy (template_name, insn->template_name);
+      new_opcode = notes_alloc (sizeof (*new_opcode));
+      template_name = notes_memdup (insn->template_name, len, len);
+
       new_opcode->template_name = template_name;
       new_opcode->parms = insn->parms;
       new_opcode->value = insn->value;
@@ -5114,22 +5111,17 @@ static void
 s7_build_dependency_insn_hsh (void)
 {
   unsigned int i;
-  static struct obstack dependency_obstack;
 
-  obstack_begin (&dependency_obstack, 4000);
   for (i = 0; i < ARRAY_SIZE (s7_insn_to_dependency_table); i++)
     {
       const struct s7_insn_to_dependency *tmp = s7_insn_to_dependency_table + i;
-      size_t len = strlen (tmp->insn_name);
+      size_t len = strlen (tmp->insn_name) + 1;
       struct s7_insn_to_dependency *new_i2d;
       char *insn_name;
 
-      new_i2d = (struct s7_insn_to_dependency *)
-          obstack_alloc (&dependency_obstack,
-                         sizeof (struct s7_insn_to_dependency));
-      insn_name = (char *) obstack_alloc (&dependency_obstack, len + 1);
+      new_i2d = notes_alloc (sizeof (*new_i2d));
+      insn_name = notes_memdup (tmp->insn_name, len, len);
 
-      strcpy (insn_name, tmp->insn_name);
       new_i2d->insn_name = insn_name;
       new_i2d->type = tmp->type;
       str_hash_insert (s7_dependency_insn_hsh, new_i2d->insn_name, new_i2d, 0);
diff --git a/gas/config/tc-tic4x.c b/gas/config/tc-tic4x.c
index b1b7bcf..03da1d4 100644
--- a/gas/config/tc-tic4x.c
+++ b/gas/config/tc-tic4x.c
@@ -709,6 +709,7 @@ tic4x_asg (int x ATTRIBUTE_UNUSED)
   char c;
   char *name;
   char *str;
+  size_t len;
 
   SKIP_WHITESPACE ();
   str = input_line_pointer;
@@ -721,10 +722,11 @@ tic4x_asg (int x ATTRIBUTE_UNUSED)
       as_bad (_("Comma expected\n"));
       return;
     }
-  *input_line_pointer++ = '\0';
+  len = input_line_pointer - str;
+  str = notes_memdup (str, len, len + 1);
+  input_line_pointer++;
   c = get_symbol_name (&name);	/* Get terminator.  */
-  str = xstrdup (str);
-  name = xstrdup (name);
+  name = notes_strdup (name);
   str_hash_insert (tic4x_asg_hash, name, str, 1);
   (void) restore_line_pointer (c);
   demand_empty_rest_of_line ();