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Remove more alloca calls
- From: Alan Modra <amodra at gmail dot com>
- To: binutils at sourceware dot org
- Date: Tue, 22 Mar 2016 22:58:56 +1030
- Subject: Remove more alloca calls
- Authentication-results: sourceware.org; auth=none
More fallout from -Wstack-usage. Committed.
* config/tc-alpha.c (load_expression): Replace alloca with xmalloc.
(emit_jsrjmp, tc_gen_reloc): Likewise.
* config/tc-i370.c (i370_macro): Likewise.
diff --git a/gas/config/tc-alpha.c b/gas/config/tc-alpha.c
index e849a95..4b86d4b 100644
--- a/gas/config/tc-alpha.c
+++ b/gas/config/tc-alpha.c
@@ -1384,13 +1384,14 @@ load_expression (int targreg,
ptr1 = strstr (symname, "..") + 2;
if (ptr1 > ptr2)
ptr1 = symname;
- ensymname = (char *) alloca (ptr2 - ptr1 + 5);
+ ensymname = (char *) xmalloc (ptr2 - ptr1 + 5);
memcpy (ensymname, ptr1, ptr2 - ptr1);
memcpy (ensymname + (ptr2 - ptr1), "..en", 5);
gas_assert (insn.nfixups + 1 <= MAX_INSN_FIXUPS);
insn.fixups[insn.nfixups].reloc = BFD_RELOC_ALPHA_NOP;
ensym = symbol_find_or_make (ensymname);
+ free (ensymname);
symbol_mark_used (ensym);
/* The fixup must be the same as the BFD_RELOC_ALPHA_BOH
case in emit_jsrjmp. See B.4.5.2 of the OpenVMS Linker
@@ -1416,13 +1417,14 @@ load_expression (int targreg,
ptr1 = strstr (symname, "..") + 2;
if (ptr1 > ptr2)
ptr1 = symname;
- psymname = (char *) alloca (ptr2 - ptr1 + 1);
+ psymname = (char *) xmalloc (ptr2 - ptr1 + 1);
memcpy (psymname, ptr1, ptr2 - ptr1);
psymname [ptr2 - ptr1] = 0;
gas_assert (insn.nfixups + 1 <= MAX_INSN_FIXUPS);
insn.fixups[insn.nfixups].reloc = BFD_RELOC_ALPHA_LDA;
psym = symbol_find_or_make (psymname);
+ free (psymname);
symbol_mark_used (psym);
insn.fixups[insn.nfixups].exp.X_op = O_subtract;
insn.fixups[insn.nfixups].exp.X_add_symbol = psym;
@@ -2881,7 +2883,7 @@ emit_jsrjmp (const expressionS *tok,
char *ensymname;
/* Build the entry name as 'NAME..en'. */
- ensymname = (char *) alloca (symlen + 5);
+ ensymname = (char *) xmalloc (symlen + 5);
memcpy (ensymname, symname, symlen);
memcpy (ensymname + symlen, "..en", 5);
@@ -2903,6 +2905,7 @@ emit_jsrjmp (const expressionS *tok,
insn.fixups[0].procsym = alpha_evax_proc->symbol;
insn.nfixups++;
alpha_linkage_symbol = 0;
+ free (ensymname);
}
#endif
@@ -6279,11 +6282,12 @@ tc_gen_reloc (asection *sec ATTRIBUTE_UNUSED,
if (pname_len > 4 && strcmp (pname + pname_len - 4, "..en") == 0)
{
symbolS *sym;
- char *my_pname = (char *) alloca (pname_len - 4 + 1);
+ char *my_pname = (char *) xmalloc (pname_len - 4 + 1);
memcpy (my_pname, pname, pname_len - 4);
my_pname [pname_len - 4] = 0;
sym = symbol_find (my_pname);
+ free (my_pname);
if (sym == NULL)
abort ();
diff --git a/gas/config/tc-i370.c b/gas/config/tc-i370.c
index bfcc0b3..a20c10c 100644
--- a/gas/config/tc-i370.c
+++ b/gas/config/tc-i370.c
@@ -1867,7 +1867,7 @@ i370_macro (char *str, const struct i370_macro *macro)
}
/* Put the string together. */
- complete = s = alloca (len + 1);
+ complete = s = xmalloc (len + 1);
format = macro->format;
while (*format != '\0')
{
@@ -1885,6 +1885,7 @@ i370_macro (char *str, const struct i370_macro *macro)
/* Assemble the constructed instruction. */
md_assemble (complete);
+ free (complete);
}
/* This routine is called for each instruction to be assembled. */
--
Alan Modra
Australia Development Lab, IBM