67 lines
2.4 KiB
Diff
67 lines
2.4 KiB
Diff
http://sourceware.org/ml/gdb-cvs/2012-09/msg00068.html
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### src/gdb/ChangeLog 2012/09/14 12:10:21 1.14659
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### src/gdb/ChangeLog 2012/09/14 12:46:55 1.14660
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## -1,3 +1,8 @@
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+2012-09-14 Siddhesh Poyarekar <siddhesh@redhat.com>
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+
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+ * valarith.c (value_concat): Replace unsafe ALLOCA with
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+ XMALLOC/XFREE.
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+
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2012-09-14 Pedro Alves <palves@redhat.com>
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* gdb.1 (SEE ALSO): Expand pointer to GDB's Texinfo manual.
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Index: gdb-7.5.0.20120926/gdb/valarith.c
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===================================================================
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--- gdb-7.5.0.20120926.orig/gdb/valarith.c 2012-11-07 22:00:41.000000000 +0100
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+++ gdb-7.5.0.20120926/gdb/valarith.c 2012-11-07 22:02:18.661767281 +0100
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@@ -716,9 +716,12 @@ value_concat (struct value *arg1, struct
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if (TYPE_CODE (type2) == TYPE_CODE_STRING
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|| TYPE_CODE (type2) == TYPE_CODE_CHAR)
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{
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+ struct cleanup *back_to;
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+
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count = longest_to_int (value_as_long (inval1));
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inval2len = TYPE_LENGTH (type2);
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- ptr = (char *) alloca (count * inval2len);
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+ ptr = (char *) xmalloc (count * inval2len);
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+ back_to = make_cleanup (xfree, ptr);
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if (TYPE_CODE (type2) == TYPE_CODE_CHAR)
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{
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char_type = type2;
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@@ -741,6 +744,7 @@ value_concat (struct value *arg1, struct
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}
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}
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outval = value_string (ptr, count * inval2len, char_type);
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+ do_cleanups (back_to);
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}
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else if (TYPE_CODE (type2) == TYPE_CODE_BITSTRING
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|| TYPE_CODE (type2) == TYPE_CODE_BOOL)
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@@ -755,6 +759,8 @@ value_concat (struct value *arg1, struct
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else if (TYPE_CODE (type1) == TYPE_CODE_STRING
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|| TYPE_CODE (type1) == TYPE_CODE_CHAR)
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{
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+ struct cleanup *back_to;
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+
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/* We have two character strings to concatenate. */
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if (TYPE_CODE (type2) != TYPE_CODE_STRING
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&& TYPE_CODE (type2) != TYPE_CODE_CHAR)
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@@ -763,7 +769,8 @@ value_concat (struct value *arg1, struct
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}
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inval1len = TYPE_LENGTH (type1);
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inval2len = TYPE_LENGTH (type2);
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- ptr = (char *) alloca (inval1len + inval2len);
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+ ptr = (char *) xmalloc (inval1len + inval2len);
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+ back_to = make_cleanup (xfree, ptr);
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if (TYPE_CODE (type1) == TYPE_CODE_CHAR)
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{
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char_type = type1;
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@@ -786,6 +793,7 @@ value_concat (struct value *arg1, struct
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memcpy (ptr + inval1len, value_contents (inval2), inval2len);
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}
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outval = value_string (ptr, inval1len + inval2len, char_type);
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+ do_cleanups (back_to);
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}
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else if (TYPE_CODE (type1) == TYPE_CODE_BITSTRING
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|| TYPE_CODE (type1) == TYPE_CODE_BOOL)
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