[Bug target/61079] New: #pragma fini doesn't apply without definition

["ro at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61079

            Bug ID: 61079
           Summary: #pragma fini doesn't apply without definition
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
              Host: *-*-solaris2.*
            Target: *-*-solaris2.*
             Build: *-*-solaris2.*

Consider the following testcase:

$ cat dtor-pragma-decl.c   
#pragma fini(dtor)
void dtor (void);
$ gcc -S dtor-pragma-decl.c 
$ cat dtor-pragma-decl.s
        .file   "dtor-pragma-decl.c"
        .ident  "GCC: (GNU) 4.9.0"
$ cc -S dtor-pragma-decl.c
$ cat dtor-pragma-decl.s
[...]
        .file   "dtor-pragma-decl.c"
        .section        .fini,"ax"
        call    dtor
        nop

I.e. Studio cc calls dtor from a .fini section, while gcc ignores the pragma.

I'm seeing the same behavior with __attribute__((destructor)), which newer
versions of Studio cc understand.

At least for the pragma case, which gcc implements for Studio compatiblity,
this
seems wrong.

  Rainer