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From: Tor Egge <tegge@FreeBSD.ORG>
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	Sun, 14 Dec 1997 18:18:39 -0800 (PST)
Date: Sun, 14 Dec 1997 18:18:39 -0800 (PST)
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To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG
Subject: cvs commit: src/sys/i386/i386 microtime.s mp_machdep.c
         simplelock.s swtch.s src/sys/i386/include lock.h profile.h
         src/sys/i386/isa apic_ipl.s ipl.s
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tegge       1997/12/14 18:18:39 PST

  Modified files:
    sys/i386/i386        microtime.s mp_machdep.c simplelock.s 
                         swtch.s 
    sys/i386/include     lock.h profile.h 
    sys/i386/isa         apic_ipl.s ipl.s 
  Log:
  Add support for low resolution SMP kernel profiling.
  
    - A nonprofiling version of s_lock (called s_lock_np) is used
      by mcount.
  
    - When profiling is active, more registers are clobbered in
      seemingly simple assembly routines. This means that some
      callers needed to save/restore extra registers.
  
    - The stack pointer must have space for a 'fake' return address
      in idle, to avoid stack underflow.
  
  Revision  Changes    Path
  1.35      +3 -1      src/sys/i386/i386/microtime.s
  1.64      +6 -1      src/sys/i386/i386/mp_machdep.c
  1.7       +31 -1     src/sys/i386/i386/simplelock.s
  1.66      +3 -2      src/sys/i386/i386/swtch.s
  1.5       +4 -1      src/sys/i386/include/lock.h
  1.13      +7 -4      src/sys/i386/include/profile.h
  1.17      +5 -1      src/sys/i386/isa/apic_ipl.s
  1.19      +7 -3      src/sys/i386/isa/ipl.s