[Bug ld/26882] New: --enable-textrel-check=warning exposes a few test failures on powerpc and others

[slyfox at inbox dot ru]

https://sourceware.org/bugzilla/show_bug.cgi?id=26882

            Bug ID: 26882
           Summary: --enable-textrel-check=warning exposes a few test
                    failures on powerpc and others
           Product: binutils
           Version: 2.35.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: slyfox at inbox dot ru
  Target Milestone: ---

It's a forward of test failures observed downstream
https://bugs.gentoo.org/754246 by ernsteiswuerfel.

Here is a reproducer:

$ ../binutils-gdb/configure --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=powerpc-unknown-linux-gnu
--enable-textrel-check=warning
$ make
$ make -C ld check RUNTESTFLAGS='powerpc.exp'

Running /home/slyfox/dev/git/binutils-gdb/ld/testsuite/ld-powerpc/powerpc.exp
...
FAIL: Reloc section order
FAIL: TLS32 shared
FAIL: TLS shared
FAIL: TLSTOC shared
FAIL: ld-powerpc/dotsym3
FAIL: ld-powerpc/dotsym4
FAIL: ld-powerpc/ppc476-shared
FAIL: ld-powerpc/ppc476-shared2

Test failures happen because tests have textrels that generate warning on
stderr.

Here is a 'Reloc section order' example:

ld/testsuite/ld-powerpc/reloc.s

 .section echidna
 .long .text

 .section platypus,"ax"
 .long .text

 .text
 b _start@plt
 nop

ld $ ../gas/as-new -o reloc.o -a32 reloc.s
ld $ ./ld-new --hash-style=sysv -o reloc.so -z norelro -melf32ppc -shared -z
nocombreloc reloc.o
ld-new: warning: creating DT_TEXTREL in a shared object

I think the TEXTREL warning is correct here and should be ignored by test.

Removing '--enable-textrel-check=warning' from ./configure makes all tests
pass.

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