[llvm-bugs] [Bug 47607] New: TestCases/Posix/no_asan_gen_globals.c FAILs on Solaris

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https://bugs.llvm.org/show_bug.cgi?id=47607

            Bug ID: 47607
           Summary: TestCases/Posix/no_asan_gen_globals.c FAILs on Solaris
           Product: compiler-rt
           Version: unspecified
          Hardware: All
                OS: Solaris
            Status: NEW
          Severity: normal
          Priority: P
         Component: asan
          Assignee: unassignedbugs at nondot.org
          Reporter: ro at gcc.gnu.org
                CC: llvm-bugs at lists.llvm.org, vitalybuka at google.com

The TestCases/Posix/no_asan_gen_globals.c test FAILs on Solaris.

$ nm no_asan_gen_globals.c.tmp.exe |grep ___asan_gen
0808056b r .L___asan_gen_.1
0808232b r .L___asan_gen_.2
08078df7 r .L___asan_gen_.4
0808232b r .L___asan_gen_.5
08082387 r .L___asan_gen_.7
0808232b r .L___asan_gen_.8

Analysis has shown two issues so far:

* Unlike GNU ld, the Solaris ld doesn't strip local symbols (i.e. those
starting
  with ".L") from executables on output.  I'll follow up with the linker
  engineers about this.  However, one might argue that the linker has no
  business stripping them since they should never have been in the input in the
  first place.

  Simply relinking the input objects with gld lets those symbols above vanish.

* However, they are present in the input object, too:

$ nm no_asan_gen_globals.o |grep ___asan_gen00000000 r .L___asan_gen_.1
00000002 r .L___asan_gen_.2
0000005e r .L___asan_gen_.4
00000060 r .L___asan_gen_.5
000000bc r .L___asan_gen_.7
000000be r .L___asan_gen_.8

  This is a bug in LLVM's integrated assebler, as can be seen when using
  -fno-integrated-as where those symbols are not present, as they shouldn't
have
  been in the first place.

  This issue isn't Solaris-specfic: I see those local symbols in the object
file
  on Linux/x86_64, too.

I have not yet found where to address the second issue.  Maybe the test should
be XFAILed in the meantime?

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