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| author | Alan Modra <amodra@gmail.com> | 2020-09-02 10:26:31 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-09-02 16:30:43 +0930 |
| commit | 01a6f9da644e52fbd644a8e8f58d58c0383118c8 (patch) | |
| tree | c6bb7ced5b4fab8dc3d1d94d26102a34ec9492ae | |
| parent | 6228e2790a72b3335e12d7604ba60f0d3fa1c880 (diff) | |
| download | gdb-01a6f9da644e52fbd644a8e8f58d58c0383118c8.zip gdb-01a6f9da644e52fbd644a8e8f58d58c0383118c8.tar.gz gdb-01a6f9da644e52fbd644a8e8f58d58c0383118c8.tar.bz2 | |
ubsan: tc-z80.c:3656 shift exponent 32 is too large
* config/tc-z80.c (is_overflow): Avoid too large shift.
| -rw-r--r-- | gas/ChangeLog | 4 | ||||
| -rw-r--r-- | gas/config/tc-z80.c | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index d6b58b4..641b68d 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,9 @@ 2020-09-02 Alan Modra <amodra@gmail.com> + * config/tc-z80.c (is_overflow): Avoid too large shift. + +2020-09-02 Alan Modra <amodra@gmail.com> + * config/tc-sparc.c (in_signed_range): Use an unsigned type for sign mask. diff --git a/gas/config/tc-z80.c b/gas/config/tc-z80.c index 45fcd6f..2e17d00 100644 --- a/gas/config/tc-z80.c +++ b/gas/config/tc-z80.c @@ -3653,7 +3653,7 @@ md_assemble (char *str) static int is_overflow (long value, unsigned bitsize) { - long fieldmask = (1UL << bitsize) - 1; + long fieldmask = (2UL << (bitsize - 1)) - 1; long signmask = ~fieldmask; long a = value & fieldmask; long ss = a & signmask; |