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* cppfiles.c (read_include_file): Add comment.

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From-SVN: r47369
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Zack Weinberg 2001-11-27 07:42:10 +00:00 committed by Neil Booth
parent 773105be40
commit 07e96fc688
2 changed files with 9 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2001-11-27 Zack Weinberg <zack@codesourcery.com>
* cppfiles.c (read_include_file): Add comment.
2001-11-26 Richard Henderson <rth@redhat.com>
* toplev.c (rest_of_compilation): Call free_bb_for_insn before exit.

5
gcc/cppfiles.c
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@ -382,6 +382,11 @@ read_include_file (pfile, inc)
if (pagesize == -1)
pagesize = getpagesize ();
/* Use mmap if the file is big enough to be worth it (controlled
by MMAP_THRESHOLD) and if we can safely count on there being
at least one readable NUL byte after the end of the file's
contents. This is true for all tested operating systems when
the file size is not an exact multiple of the page size. */
if (size / pagesize >= MMAP_THRESHOLD
&& (size % pagesize) != 0)
{