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| author | Alan Modra <amodra@gmail.com> | 2019-12-16 09:59:23 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-16 17:35:13 +1030 |
| commit | 488d02fe7729dda5b9414a3942df68e0c316ce53 (patch) | |
| tree | 25e2e7cf2cb6f3c901570078d904d3995b88843d /opcodes | |
| parent | 8a92faab92e359a860da6c69741acd1fac24dad6 (diff) | |
| download | gdb-488d02fe7729dda5b9414a3942df68e0c316ce53.zip gdb-488d02fe7729dda5b9414a3942df68e0c316ce53.tar.gz gdb-488d02fe7729dda5b9414a3942df68e0c316ce53.tar.bz2 | |
ubsan: microblaze: left shift cannot be represented in type 'int'
* microblaze-dis.c (read_insn_microblaze): Avoid signed overflow.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 4 | ||||
| -rw-r--r-- | opcodes/microblaze-dis.c | 6 |
2 files changed, 8 insertions, 2 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 113fd09..d33c7a1 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,5 +1,9 @@ 2019-12-16 Alan Modra <amodra@gmail.com> + * microblaze-dis.c (read_insn_microblaze): Avoid signed overflow. + +2019-12-16 Alan Modra <amodra@gmail.com> + * nios2-dis.c (nios2_print_insn_arg): Avoid signed overflow 2019-12-16 Alan Modra <amodra@gmail.com> diff --git a/opcodes/microblaze-dis.c b/opcodes/microblaze-dis.c index 2b3aa8e..5df7ae4 100644 --- a/opcodes/microblaze-dis.c +++ b/opcodes/microblaze-dis.c @@ -200,9 +200,11 @@ read_insn_microblaze (bfd_vma memaddr, } if (info->endian == BFD_ENDIAN_BIG) - inst = (ibytes[0] << 24) | (ibytes[1] << 16) | (ibytes[2] << 8) | ibytes[3]; + inst = (((unsigned) ibytes[0] << 24) | (ibytes[1] << 16) + | (ibytes[2] << 8) | ibytes[3]); else if (info->endian == BFD_ENDIAN_LITTLE) - inst = (ibytes[3] << 24) | (ibytes[2] << 16) | (ibytes[1] << 8) | ibytes[0]; + inst = (((unsigned) ibytes[3] << 24) | (ibytes[2] << 16) + | (ibytes[1] << 8) | ibytes[0]); else abort (); |