[v2,00/14] Move libdl into libc

  This is a rebased repost of the previous patch series.

The last two patches are optional.

The second patch with the ABI extension kludge is relevant to
libanl/librt/libutil as well, so I'd very much like to see some review
of it.

I updated the “dlfcn: Cleanups after -ldl is no longer required” patch
to suppress installation of libdl.so, and made sure that libdl.a is
actually empty (there was an old makefile bug that caused dlfcn.o to be
built in addition to dlfcn.os).

Thanks,
Florian

Florian Weimer (14):
  stdio-common: Remove _IO_vfwscanf
  Add libc ABI extension kludge for baseline-violating libdl symbols
  dlfcn: Move dlerror into libc
  dlfcn: Move dlclose into libc
  dlfcn: Move dladdr into libc
  dlfcn: Move dlsym into libc
  dlfcn: Move dlmopen into libc
  dlfcn: Move dladdr1 into libc
  dlfcn: Move dlinfo into libc
  dlfcn: Move dlvsym into libc
  dlfcn: Move dlopen into libc
  dlfcn: Cleanups after -ldl is no longer required
  dlfcn: Eliminate GLIBC_PRIVATE dependency from tststatic2
  dlfcn: Rework static dlopen hooks

 Makeconfig                                    |   6 -
 dlfcn/Makefile                                |  55 +++---
 dlfcn/Versions                                |  42 ++++-
 dlfcn/dladdr.c                                |  24 +--
 dlfcn/dladdr1.c                               |  24 +--
 dlfcn/dlclose.c                               |  32 +---
 dlfcn/dlerror.c                               |  67 ++-----
 dlfcn/dlfcn.c                                 |  41 +++--
 dlfcn/dlinfo.c                                |  47 ++---
 dlfcn/dlmopen.c                               |  67 +++----
 dlfcn/dlopen.c                                |  76 ++++----
 dlfcn/dlopenold.c                             |   6 +-
 dlfcn/dlsym.c                                 |  59 +++---
 dlfcn/dlvsym.c                                |  67 ++++---
 dlfcn/modstatic2.c                            |   3 +-
 dlfcn/sdladdr.c                               |   1 -
 dlfcn/sdladdr1.c                              |   1 -
 dlfcn/sdlclose.c                              |   1 -
 dlfcn/sdlerror.c                              |   1 -
 dlfcn/sdlinfo.c                               |   1 -
 dlfcn/sdlmopen.c                              |   1 -
 dlfcn/sdlopen.c                               |   1 -
 dlfcn/sdlsym.c                                |   1 -
 dlfcn/sdlvsym.c                               |   1 -
 dlfcn/tststatic2.c                            |   3 +-
 elf/Makefile                                  | 173 +++---------------
 elf/Versions                                  |   1 -
 elf/dl-libc.c                                 |  73 +-------
 elf/dl-sym.c                                  |   3 +-
 elf/rtld_static_init.c                        |  18 ++
 htl/Makefile                                  |   1 -
 iconvdata/Makefile                            |   1 -
 include/dlfcn.h                               |  81 +++-----
 malloc/Makefile                               |   3 -
 misc/Makefile                                 |   2 -
 nptl/Makefile                                 |   7 -
 nss/Makefile                                  |   5 -
 resolv/Makefile                               |  19 +-
 scripts/versions.awk                          |  36 +++-
 stdio-common/Makefile                         |   2 +-
 stdio-common/iovfwscanf.c                     |  38 ----
 stdlib/Makefile                               |   8 +-
 string/Makefile                               |   1 -
 sysdeps/generic/ldsodefs.h                    |   3 +
 sysdeps/mach/hurd/i386/libc.abilist           |  18 ++
 sysdeps/mach/hurd/i386/libdl.abilist          |  12 +-
 sysdeps/mips/Makefile                         |   1 -
 sysdeps/pthread/Makefile                      |   6 +-
 sysdeps/unix/sysv/linux/aarch64/libc.abilist  |  18 ++
 sysdeps/unix/sysv/linux/aarch64/libdl.abilist |  10 +-
 sysdeps/unix/sysv/linux/alpha/libc.abilist    |  19 ++
 sysdeps/unix/sysv/linux/alpha/libdl.abilist   |  14 +-
 sysdeps/unix/sysv/linux/arc/libc.abilist      |  18 ++
 sysdeps/unix/sysv/linux/arc/libdl.abilist     |  10 +-
 sysdeps/unix/sysv/linux/arm/be/libc.abilist   |  18 ++
 sysdeps/unix/sysv/linux/arm/be/libdl.abilist  |  10 +-
 sysdeps/unix/sysv/linux/arm/le/libc.abilist   |  18 ++
 sysdeps/unix/sysv/linux/arm/le/libdl.abilist  |  10 +-
 sysdeps/unix/sysv/linux/csky/libc.abilist     |  18 ++
 sysdeps/unix/sysv/linux/csky/libdl.abilist    |  10 +-
 sysdeps/unix/sysv/linux/hppa/Versions         |   1 +
 sysdeps/unix/sysv/linux/hppa/libc.abilist     |  19 ++
 sysdeps/unix/sysv/linux/hppa/libdl.abilist    |  14 +-
 sysdeps/unix/sysv/linux/i386/libc.abilist     |  19 ++
 sysdeps/unix/sysv/linux/i386/libdl.abilist    |  14 +-
 sysdeps/unix/sysv/linux/ia64/Versions         |   1 +
 sysdeps/unix/sysv/linux/ia64/libc.abilist     |  19 ++
 sysdeps/unix/sysv/linux/ia64/libdl.abilist    |  14 +-
 .../sysv/linux/m68k/coldfire/libc.abilist     |  18 ++
 .../sysv/linux/m68k/coldfire/libdl.abilist    |  10 +-
 .../unix/sysv/linux/m68k/m680x0/libc.abilist  |  19 ++
 .../unix/sysv/linux/m68k/m680x0/libdl.abilist |  14 +-
 .../sysv/linux/microblaze/be/libc.abilist     |  18 ++
 .../sysv/linux/microblaze/be/libdl.abilist    |  10 +-
 .../sysv/linux/microblaze/le/libc.abilist     |  18 ++
 .../sysv/linux/microblaze/le/libdl.abilist    |  10 +-
 .../sysv/linux/mips/mips32/fpu/libc.abilist   |  19 ++
 .../unix/sysv/linux/mips/mips32/libdl.abilist |  14 +-
 .../sysv/linux/mips/mips32/nofpu/libc.abilist |  19 ++
 .../unix/sysv/linux/mips/mips64/libdl.abilist |  14 +-
 .../sysv/linux/mips/mips64/n32/libc.abilist   |  19 ++
 .../sysv/linux/mips/mips64/n64/libc.abilist   |  19 ++
 sysdeps/unix/sysv/linux/nios2/libc.abilist    |  18 ++
 sysdeps/unix/sysv/linux/nios2/libdl.abilist   |  10 +-
 .../linux/powerpc/powerpc32/fpu/libc.abilist  |  19 ++
 .../linux/powerpc/powerpc32/libdl.abilist     |  14 +-
 .../powerpc/powerpc32/nofpu/libc.abilist      |  19 ++
 .../linux/powerpc/powerpc64/be/libc.abilist   |  18 ++
 .../linux/powerpc/powerpc64/be/libdl.abilist  |  12 +-
 .../linux/powerpc/powerpc64/le/libc.abilist   |  18 ++
 .../linux/powerpc/powerpc64/le/libdl.abilist  |  10 +-
 .../unix/sysv/linux/riscv/rv32/libc.abilist   |  18 ++
 .../unix/sysv/linux/riscv/rv32/libdl.abilist  |  10 +-
 .../unix/sysv/linux/riscv/rv64/libc.abilist   |  18 ++
 .../unix/sysv/linux/riscv/rv64/libdl.abilist  |  10 +-
 .../unix/sysv/linux/s390/s390-32/libc.abilist |  19 ++
 .../sysv/linux/s390/s390-32/libdl.abilist     |  14 +-
 .../unix/sysv/linux/s390/s390-64/libc.abilist |  18 ++
 .../sysv/linux/s390/s390-64/libdl.abilist     |  12 +-
 sysdeps/unix/sysv/linux/sh/Versions           |   1 +
 sysdeps/unix/sysv/linux/sh/be/libc.abilist    |  19 ++
 sysdeps/unix/sysv/linux/sh/be/libdl.abilist   |  14 +-
 sysdeps/unix/sysv/linux/sh/le/libc.abilist    |  19 ++
 sysdeps/unix/sysv/linux/sh/le/libdl.abilist   |  14 +-
 .../sysv/linux/sparc/sparc32/libc.abilist     |  19 ++
 .../sysv/linux/sparc/sparc32/libdl.abilist    |  14 +-
 .../unix/sysv/linux/sparc/sparc64/Versions    |   1 +
 .../sysv/linux/sparc/sparc64/libc.abilist     |  19 ++
 .../sysv/linux/sparc/sparc64/libdl.abilist    |  14 +-
 .../unix/sysv/linux/x86_64/64/libc.abilist    |  18 ++
 .../unix/sysv/linux/x86_64/64/libdl.abilist   |  12 +-
 .../unix/sysv/linux/x86_64/x32/libc.abilist   |  18 ++
 .../unix/sysv/linux/x86_64/x32/libdl.abilist  |  10 +-
 sysdeps/x86/Makefile                          |  13 +-
 114 files changed, 1134 insertions(+), 963 deletions(-)
 delete mode 100644 dlfcn/sdladdr.c
 delete mode 100644 dlfcn/sdladdr1.c
 delete mode 100644 dlfcn/sdlclose.c
 delete mode 100644 dlfcn/sdlerror.c
 delete mode 100644 dlfcn/sdlinfo.c
 delete mode 100644 dlfcn/sdlmopen.c
 delete mode 100644 dlfcn/sdlopen.c
 delete mode 100644 dlfcn/sdlsym.c
 delete mode 100644 dlfcn/sdlvsym.c
 delete mode 100644 stdio-common/iovfwscanf.c