cvs commit: src/lib/libc/stdlib getenv.c

[Sean Farley]

scf         2008-02-28 04:09:08 UTC

  FreeBSD src repository

  Modified files:
    lib/libc/stdlib      getenv.c 
  Log:
  Replace the use of warnx() with direct output to stderr using _write().
  This reduces the size of a statically-linked binary by approximately 100KB
  in a trivial "return (0)" test application.  readelf -S was used to verify
  that the .text section was reduced and that using strlen() saved a few
  more bytes over using sizeof().  Since the section of code is only called
  when environ is corrupt (program bug), I went with fewer bytes over fewer
  cycles.
  
  I made minor edits to the submitted patch to make the output resemble
  warnx().
  
  Submitted by:   kib bz
  Approved by:    wes (mentor)
  MFC after:      5 days
  
  Revision  Changes    Path
  1.13      +36 -12    src/lib/libc/stdlib/getenv.c