[KUDU-2094] GCC 7.1 complains about alignment of Counter

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: build
• Assignee: Unassigned
• Reporter: Tim Armstrong
• Created: 11/Aug/17 00:26
• Updated: 02/Jun/20 20:27

Description

I found this when building the kudu/util subtree in Impala with gcc 7.1.

In a few places, e.g. metrics.h, the compiler complains that the alignment required by Counter is less than the alignment guaranteed by new.

    m = new Counter(proto);

I worked around this by setting -faligned-new, which was added recently to GCC and is enabled by default with C++17. The setting ensures that new allocates memory with the alignment required by the data type.