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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

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          --- old/usr/src/lib/libc_db/sparc/Makefile
          +++ new/usr/src/lib/libc_db/sparc/Makefile
↓ open down ↓ 15 lines elided ↑ open up ↑
  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 2004 Sun Microsystems, Inc.  All rights reserved.
  24   24  # Use is subject to license terms.
  25   25  #
  26      -# ident "%Z%%M% %I%     %E% SMI"
  27      -#
  28   26  
  29      -CRTSRCS= ../../common/sparc
       27 +CRTSRCS= ../../crt/sparcv7
  30   28  
  31   29  include ../Makefile.com
  32   30  
  33   31  BUILD.SO= $(LD) -o $@ -G $(DYNFLAGS) $(PICS) $(LDLIBS)
  34   32  
  35   33  install: all $(ROOTLIBDIR) .WAIT $(ROOTLIBS) $(ROOTLINKS) $(ROOTLINT)
    
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