crt: Need a position-independent CRT for PIE
- Implement the greatest possible part of the crt1 in C
- Implement SPARC versions of the ASM sections of crt1
- Build crt1 position-independently, minor ASM updates to be position
  independent
- Implement crt1 with the hook expected by modern GCC to support
  profiling, make gcrt1 a symlink for source compatibility (older GCC
  initializes profiling at firsnt use of _mcount if necessary, so
  doesn't need the gcrt)
- Split the CRT out of developer/library/lint into a separate c-runtime package

          --- old/usr/src/cmd/getconf/Makefile
          +++ new/usr/src/cmd/getconf/Makefile

   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, Version 1.0 only
   6    6  # (the "License").  You may not use this file except in compliance
   7    7  # with the License.
   8    8  #
   9    9  # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10   10  # or http://www.opensolaris.org/os/licensing.
  11   11  # See the License for the specific language governing permissions
  12   12  # and limitations under the License.
  13   13  #
  14   14  # When distributing Covered Code, include this CDDL HEADER in each
  15   15  # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16   16  # If applicable, add the following below this CDDL HEADER, with the
  17   17  # fields enclosed by brackets "[]" replaced with your own identifying
  18   18  # information: Portions Copyright [yyyy] [name of copyright owner]
  19   19  #
  20   20  # CDDL HEADER END
  21   21  #
  22   22  #
  23   23  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24   24  # Use is subject to license terms.
  25   25  #
  26   26  
  27   27  PROG= getconf
  28   28  XPG4PROG= getconf
  29   29  XPG6PROG= getconf
  30   30  X4= objs.xpg4
  31   31  X6= objs.xpg6
  32   32  OBJS= getconf.o
  33   33  XPG4EXOBJS= $(X4)/getconf.o
  34   34  XPG6EXOBJS= $(X6)/getconf.o
  35   35  
  36   36  include ../Makefile.cmd
  37   37  
  38   38  XPG4EXOBJS += values-xpg4.o
  39   39  CFLAGS += $(CCVERBOSE)
  40   40  # XPG4
  41   41  $(XPG4) := CFLAGS += -D_XOPEN_SOURCE -I$(SRC)/lib/libc/inc
  42   42  
  43   43  # XPG6MODE:  Depending on the version of the compiler, the value of
  44   44  # __STDC_VERSION__ may differ even in the presence of the same compilation
  45   45  # options. The default compilation mode for Sun compilers that support the
  46   46  # C99 standard is -xc99=all,no_lib. C99MODE= is equivalent to -xc99=all,no_lib.
  47   47  # This translates to C99 semantics without the C99 library specific behaviors
  48   48  # and dependencies.
  49   49  #
  50   50  # For pre-5.7 compilers (unless patched with 117551-04 or 117552-05), in the
  51   51  # default compilation mode, __STDC_VERSION__ was defined to be 199901L. For
  52   52  # 5.7 and on compilers, __STDC_VERSION__ defaults to 199409L in order to 
  53   53  # maintain source compatibility. Neither of these cases results in the 
  54   54  # importing of /usr/lib/values-xpg6.o, so we need to either manually import 
  55   55  # it via linking with a local version of the object, or set -xc99=%all which
  56   56  # by default imports /usr/lib/values-xpg6.o. C99MODE=C99_ENABLE is equivalent
  57   57  # to -xc99=all. If C99_ENABLE is defined and we also attempt to link with a 
  58   58  # local version of values-xpg6.o, an error will occur due to multiple 
  59   59  # definitions for __xpg4 and __xpg6. Because /usr/lib/values-xpg6.o was
  60   60  # delivered in Solaris 10 and is a stable interface, there is no need to
  61   61  # build and link with a local version of the object.
  62   62  #
  63   63  # The gcc compiler behaves differently and requires -std=gnu99.
  64   64  #
  65   65  # For XPG4, we need to link with a local version of values-xpg4.o because
  66   66  # the compiler only imports this by default (from /usr/lib/values-xpg4.o)
  67   67  # if we use the c89 utility as opposed to cc.
  68   68  
  69   69  XPG6MODE = $(C99_ENABLE)
  70   70  $(XPG6) := C99MODE = $(XPG6MODE)
  71   71  $(XPG6) := CFLAGS += -D_XOPEN_SOURCE=600 -I$(SRC)/lib/libc/inc
  72   72  
  73   73  .KEEP_STATE:
  74   74  
  75   75  all: $(PROG) $(XPG4) $(XPG6)
  76   76  
  77   77  $(PROG):        $(OBJS)
  78   78          $(LINK.c) -o $@ $(OBJS) $(LDLIBS)
  79   79          $(POST_PROCESS)
  80   80  
  81   81  $(XPG4):        $(X4) $(XPG4EXOBJS)
  82   82          $(LINK.c) -o $@ $(XPG4EXOBJS) $(LDLIBS)
  83   83          $(POST_PROCESS)
  84   84  
  85   85  $(XPG6):        $(X6) $(XPG6EXOBJS)
  86   86          $(LINK.c) -o $@ $(XPG6EXOBJS) $(LDLIBS)
  87   87          $(POST_PROCESS)
  88   88  
  89   89  
  90   90  $(XPG4EXOBJS):  $(X4)
  91   91  
  92   92  
  93   93  $(X4)/%.o:      %.c
  94   94          $(COMPILE.c) -o $@ $<
  95   95  
  96   96  
  97   97  $(X4):
  98   98          -@mkdir -p $@
  99   99  
 100  100  
 101  101  $(XPG6EXOBJS):  $(X6)
 102  102  
 103  103  

 104  104  $(X6)/%.o:      %.c
 105  105          $(COMPILE.c) -o $@ $<
 106  106  
 107  107  
 108  108  $(X6):
 109  109          -@mkdir -p $@
 110  110  
 111  111  
 112  112  install: all $(ROOTPROG) $(ROOTXPG4PROG) $(ROOTXPG6PROG)
 113  113  
 114      -values-xpg4.o: ../../lib/common/common/values-xpg4.c
 115      -        $(COMPILE.c) -o $@ ../../lib/common/common/values-xpg4.c
      114 +values-xpg4.o: ../../lib/crt/common/values-xpg4.c
      115 +        $(COMPILE.c) -o $@ ../../lib/crt/common/values-xpg4.c
 116  116  
 117  117  clean:
 118  118          -@rm -rf $(OBJS) $(XPG4EXOBJS) $(XPG6EXOBJS) $(X4) $(X6) \
 119  119                  $(PROG) $(XPG4) $(XPG6)
 120  120  
 121  121  lint:   lint_PROG
 122  122  
 123  123  include ../Makefile.targ
    

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