12312 fix unused lib dependencies

          --- old/usr/src/lib/brand/solaris10/s10_brand/Makefile.com
          +++ new/usr/src/lib/brand/solaris10/s10_brand/Makefile.com

   1    1  #
   2    2  # CDDL HEADER START
   3    3  #
   4    4  # The contents of this file are subject to the terms of the
   5    5  # Common Development and Distribution License (the "License").
   6    6  # You may not use this file except in compliance with the License.
   7    7  #
   8    8  # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9  # or http://www.opensolaris.org/os/licensing.
  10   10  # See the License for the specific language governing permissions
  11   11  # and limitations under the License.
  12   12  #
  13   13  # When distributing Covered Code, include this CDDL HEADER in each

  14   14  # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15  # If applicable, add the following below this CDDL HEADER, with the
  16   16  # fields enclosed by brackets "[]" replaced with your own identifying
  17   17  # information: Portions Copyright [yyyy] [name of copyright owner]
  18   18  #
  19   19  # CDDL HEADER END
  20   20  #
  21   21  #
  22   22  # Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  23   23  # Copyright (c) 2016 by Delphix. All rights reserved.
       24 +# Copyright 2020 Joyent, Inc.
  24   25  #
  25   26  
  26   27  LIBRARY =       s10_brand.a
  27   28  VERS =          .1
  28   29  COBJS =         s10_brand.o s10_deleted.o s10_signal.o
  29   30  ASOBJS =        crt.o handler.o runexe.o brand_util.o
  30   31  OBJECTS =       $(COBJS)
  31   32  
  32   33  include ../../Makefile.s10
  33   34  include $(SRC)/lib/Makefile.lib

  34   35  
  35   36  SRCDIR =        ../common
  36   37  UTSBASE =       $(SRC)/uts
  37   38  
  38   39  LIBS =          $(DYNLIB)
  39   40  CSRCS =         $(COBJS:%o=../common/%c)
  40   41  SHAREDOBJS =    $(ASOBJS:%o=$(ISAOBJDIR)/%o)
  41   42  SRCS =          $(CSRCS)
  42   43  
  43   44  #
  44   45  # Note that the architecture specific makefiles MUST update DYNFLAGS to
  45   46  # explicitly specify an interpreter for the brand emulation library so that we
  46   47  # use /lib/ld.so.1 or /lib/64/ld.so.1, which in a s10 zone is the Solaris 10
  47   48  # linker.  This is different from some other brands where the linker that is
  48   49  # used is the native system linker (/.SUNWnative/.../ld.so.1).  We have to do
  49   50  # this because the linker has a very incestuous relationship with libc and we
  50   51  # don't want to use the native linker with the s10 version of libc.  (This may
  51   52  # come as a surprise to the reader, but when our library is loaded it get's
  52   53  # linked against the s10 version of libc.)  Although the linker interfaces are
  53   54  # normally stable, there are examples, such as with the solaris8 brand, where
  54   55  # we could not combine the brand's libc with the native linker.  Since we want
  55   56  # to run in a known configuration, we use the S10 libc/linker combination.
  56   57  #
  57   58  # There is one more non-obvious side effect of using the s10 linker that
  58   59  # should be mentioned.  Since the linker is used to setup processes before
  59   60  # libc is loaded, it makes system calls directly (ie avoiding libc), and
  60   61  # it makes these system calls before our library has been initialized.
  61   62  # Since our library hasn't been initialized yet, there's no way for us
  62   63  # to intercept and emulate any of those system calls.  So if any of those
  63   64  # system calls ever change in the native code such that they break the s10
  64   65  # linker then we're kinda screwed and will need to re-visit the current
  65   66  # solution.  (The likely solution then will probably be to start using the
  66   67  # native linker with our brand emulation library.)
  67   68  #
  68   69  # Note that we make sure to link our brand emulation library
  69   70  # libmapmalloc.  This is required because in most cases there will be two
  70   71  # copies of libc in the same process and we don't want them to fight over
  71   72  # the heap.  So for our brand library we link against libmapmalloc so that
  72   73  # if we (our or copy of libc) try to allocate any memory it will be done
  73   74  # via mmap() instead of brk().
  74   75  #

  75   76  CPPFLAGS +=     -D_REENTRANT -U_ASM \
  76   77                  -I. -I$(BRAND_SHARED)/brand/sys -I../sys \
  77   78                  -I$(UTSBASE)/common/brand/solaris10 \
  78   79                  -I$(SRC)/uts/common/fs/zfs
  79   80  CFLAGS +=       $(CCVERBOSE)
  80   81  # Needed to handle zfs include files
  81   82  CSTD=   $(CSTD_GNU99)
  82   83  C99LMODE=       -Xc99=%all
  83   84  DYNFLAGS +=     $(DYNFLAGS_$(CLASS))
  84   85  DYNFLAGS +=     $(BLOCAL) $(ZNOVERSION) -Wl,-e_start
  85      -LDLIBS +=       -lc -lmapmalloc
       86 +LDLIBS +=       -lmapmalloc -lc
  86   87  LINTFLAGS +=    -erroff=E_STATIC_UNUSED
  87   88  LINTFLAGS64 +=  -erroff=E_STATIC_UNUSED
  88   89  
  89   90  CERRWARN +=     $(CNOWARN_UNINIT)
  90   91  
  91   92  $(LIBS):= PICS += $(SHAREDOBJS)
  92   93  
  93   94  .KEEP_STATE:
  94   95  
  95   96  all: $(LIBS)
  96   97  
  97      -lint: lintcheck
  98      -
  99   98  include $(SRC)/lib/Makefile.targ
    

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