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From: Attilio Rao <attilio@FreeBSD.org>
Date: Wed, 25 Nov 2009 15:23:14 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/usr.bin/gcore Makefile elfcore.c gcore.1 gcore.c
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attilio     2009-11-25 15:23:14 UTC

  FreeBSD src repository

  Modified files:
    usr.bin/gcore        Makefile elfcore.c gcore.1 gcore.c 
  Log:
  SVN rev 199805 on 2009-11-25 15:23:14Z by attilio
  
  Change gcore in order to get rid of the procfs accesses and use FreeBSD's
  specific sysctls and ptrace interfaces.
  This change switches a bit gcore POLA that is summarized here:
  - now gcore can recognize threads within the process and handle dumps
    on thread-scope
  - the process to be analyzed will be stopped during its gcore run
  - gcore may not work with processes which are actively being analyzed
    by gdb or truss
  - the ptrace interface may cause syscalls to return EINTR, thus
    interferring with signals handling within the process
  
  Side note: <janitor task> the interface can be further lifted in order to
  get rid of the very last procfs interfaces remnants and made more
  suitable for copying with sysctl/ptrace interface </janitor task>.
  
  Obtained from:  Sandvine Incorporated
  Reviewed by:    emaste, rwatson
  Sponsored by:   Sandvine Incorporated
  MFC:            1 month
  
  Revision  Changes    Path
  1.10      +1 -0      src/usr.bin/gcore/Makefile
  1.22      +164 -181  src/usr.bin/gcore/elfcore.c
  1.16      +10 -14    src/usr.bin/gcore/gcore.1
  1.32      +12 -5     src/usr.bin/gcore/gcore.c