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* p-exp.y (parse_number): Avoid shift overflow when ``long''.

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Code copied from c-exp.y.
This commit is contained in:
Andrew Cagney 2001-03-19 19:05:21 +00:00
parent 177495c907
commit 7451d02767
2 changed files with 11 additions and 7 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2001-03-17 Andrew Cagney <ac131313@redhat.com>
* p-exp.y (parse_number): Avoid shift overflow when ``long''.
Code copied from c-exp.y.
2001-03-18 Kevin Buettner <kevinb@redhat.com>
* acconfig.h (HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS)

13
gdb/p-exp.y
View File

@ -858,14 +858,13 @@ parse_number (p, len, parsed_float, putithere)
}
else
{
high_bit = (((ULONGEST)1)
<< (TARGET_LONG_LONG_BIT - 32 - 1)
<< 16
<< 16);
if (high_bit == 0)
int shift;
if (sizeof (ULONGEST) * HOST_CHAR_BIT < TARGET_LONG_LONG_BIT)
/* A long long does not fit in a LONGEST. */
high_bit =
(ULONGEST)1 << (sizeof (LONGEST) * HOST_CHAR_BIT - 1);
shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
else
shift = (TARGET_LONG_LONG_BIT - 1);
high_bit = (ULONGEST) 1 << shift;
unsigned_type = builtin_type_unsigned_long_long;
signed_type = builtin_type_long_long;
}