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| author | Alan Modra <amodra@gmail.com> | 2019-10-14 20:29:12 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-10-15 16:00:54 +1030 |
| commit | ed481f9799f2bd08a7541a5fe0a887dc5c7fd4a9 (patch) | |
| tree | 35fb1ae9da0260f6ae763809a43e32e46f23e234 | |
| parent | b7be2d03fb2f873e0db74c84846df97787fc0dc6 (diff) | |
| download | gdb-ed481f9799f2bd08a7541a5fe0a887dc5c7fd4a9.zip gdb-ed481f9799f2bd08a7541a5fe0a887dc5c7fd4a9.tar.gz gdb-ed481f9799f2bd08a7541a5fe0a887dc5c7fd4a9.tar.bz2 | |
Simplify power of two test
* bfd.c (bfd_check_compression_header): Check for powers of two
with x == (x & -x).
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/bfd.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index a1eaef9..4d8db19 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2019-10-15 Alan Modra <amodra@gmail.com> + + * bfd.c (bfd_check_compression_header): Check for powers of two + with x == (x & -x). + 2019-10-14 Alan Modra <amodra@gmail.com> * syms.c (struct indexentry): Add idx field. @@ -2635,7 +2635,7 @@ bfd_check_compression_header (bfd *abfd, bfd_byte *contents, chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign); } if (chdr.ch_type == ELFCOMPRESS_ZLIB - && chdr.ch_addralign == (1U << bfd_log2 (chdr.ch_addralign))) + && chdr.ch_addralign == (chdr.ch_addralign & -chdr.ch_addralign)) { *uncompressed_size = chdr.ch_size; *uncompressed_alignment_power = bfd_log2 (chdr.ch_addralign); |