cvs commit: src/sys/ia64/ia64 support.S src/sys/ia64/include asm.h cpu.h profile.h src/lib/libc/ia64/gen Makefile.inc _mcount.S

[Marcel Moolenaar]

marcel      2004-08-25 07:42:34 UTC

  FreeBSD src repository

  Modified files:
    sys/ia64/ia64        support.S 
    sys/ia64/include     asm.h cpu.h profile.h 
    lib/libc/ia64/gen    Makefile.inc 
  Added files:
    lib/libc/ia64/gen    _mcount.S 
  Log:
  Make profiling actually work. The gcc compiler emits a call to the
  _mcount() stub when profiling is enabled. Emit this code sequence
  for assembly routines as welli (MCOUNT definition in <machine/asm.h>.
  We do not pass the GOT entry however as the 4th argument, because it's
  not used. The _mcount() stub calls __mcount(), which does the actual
  work. Define _MCOUNT_DECL to define __mcount. We do not have an
  implementation of mcount(), so we define MCOUNT as empty, but have a
  weak alias to _mcount() in _mcount.S.
  Note that the _mcount() stub in the kernel is slightly different from
  the stub in userland. This is because we do not have to worry about
  nested routines in the kernel.
  
  Revision  Changes    Path
  1.13      +4 -4      src/lib/libc/ia64/gen/Makefile.inc
  1.1       +75 -0     src/lib/libc/ia64/gen/_mcount.S (new)
  1.22      +42 -0     src/sys/ia64/ia64/support.S
  1.11      +9 -6      src/sys/ia64/include/asm.h
  1.45      +5 -0      src/sys/ia64/include/cpu.h
  1.9       +29 -88    src/sys/ia64/include/profile.h