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| author | Andrew Cagney <cagney@redhat.com> | 2001-03-19 19:05:21 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2001-03-19 19:05:21 +0000 |
| commit | 7451d027679bb07d31ddb8d0359d62b0226ffc71 (patch) | |
| tree | 8aaa7effccb32413062c31142999c8f3fd23610a /gdb | |
| parent | 177495c9073d6c70971c0a2dbf8f3933ead3015f (diff) | |
| download | gdb-7451d027679bb07d31ddb8d0359d62b0226ffc71.zip gdb-7451d027679bb07d31ddb8d0359d62b0226ffc71.tar.gz gdb-7451d027679bb07d31ddb8d0359d62b0226ffc71.tar.bz2 | |
* p-exp.y (parse_number): Avoid shift overflow when ``long''.
Code copied from c-exp.y.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/p-exp.y | 13 |
2 files changed, 11 insertions, 7 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 489ab99..c0f110f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -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) diff --git a/gdb/p-exp.y b/gdb/p-exp.y index 8945a05..b09ec08 100644 --- a/gdb/p-exp.y +++ b/gdb/p-exp.y @@ -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; } |