[Bug gold/17578] New: Confusing "requires executable stack" warning from gold

[ilya.konstantinov at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17578

            Bug ID: 17578
           Summary: Confusing "requires executable stack" warning from
                    gold
           Product: binutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
          Assignee: ccoutant at google dot com
          Reporter: ilya.konstantinov at gmail dot com
                CC: ian at airs dot com

1. Compile object files with -Wa,--execstack
2. Link said object files with -Wl,-z,execstack

gold will produce warnings such as:

  ld : warning : foo.o: requires executable stack

This warning is confusing, since one would think that by explicitly specifying
-Wl,-z,execstack, one is acknowledging that and no warning is needed.

The relevant code is in bintuils/gold/layout.cc:

      if (parameters->options().warn_execstack()
          || parameters->options().is_stack_executable())
                 ^^^

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