Bug ID: 21934
           Summary: gas build fails when using gcc 7
           Product: binutils
           Version: 2.29
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: bneumeier at gmail dot com
  Target Milestone: ---

Created attachment 10331
Fix a gas build error when using gcc 7

I found this only when doing an ARM-to-x86_64 cross-toolchain build, but I
presume it can occur in other circumstances as well.

When using gcc 7, config/tc-i386.c fails to compile because of a compiler

In function 'output_invalid':
9719:12: error: '%x' directive output may be truncated writing between 1 and 8
bytes into a region of size 5 [-Werror=format-truncation=]

This is similar to other issues I found corrected in binutils 2.29, e.g. PR
21096, and I was able to fix it similarly by increasing the size of the buffer
slightly. Patch attached.

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