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c-opts.c (c_common_handle_option): Handle -fpch-preprocess.

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2004-06-21  Geoffrey Keating  <geoffk@apple.com>

	* c-opts.c (c_common_handle_option): Handle -fpch-preprocess.
	* c-common.h (flag_pch_preprocess): Declare.
	(c_common_pch_pragma): Likewise.
	* c-common.c (flag_pch_preprocess): New.
	* c-pch.c (c_common_read_pch): Support -fpreprocess-only.
	(c_common_pch_pragma): New.
	* c-ppoutput.c (cb_read_pch): New.
	(init_pp_output): Support -fpch-preprocess.
	* c-pragma.c (init_pragma): Support #pragma GNUC pch_preprocess.
	* c.opt (fpch-preprocess): New.
	* gcc.c (cpp_options): When save-temps, pass -fpch-preprocess.
	* doc/cppopts.texi: Document -fpch-preprocess.
	* doc/invoke.texi (Precompiled Headers): Mention that
	-fpreprocessed is safe for PCH.  Mention that if an option is
	listed as safe that doesn't mean it does what you expect.

Index: gcc/testsuite/ChangeLog
2004-06-21  Geoffrey Keating  <geoffk@apple.com>

	* gcc.dg/pch/save-temps-1.c: New file.
	* gcc.dg/pch/save-temps-1.hs: New file.

Index: libcpp/ChangeLog
2004-06-21  Geoffrey Keating  <geoffk@apple.com>

	* files.c (should_stack_file): Correct swapped parameters to call
	to cb.read_pch.
	* pch.c (cpp_valid_state): Handle -fpreprocessed.

From-SVN: r83478
This commit is contained in:
Geoffrey Keating 2004-06-22 06:51:56 +00:00 • committed by Geoffrey Keating
parent f6144c34c8
commit c0d578e68f
17 changed files with 188 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

6
libcpp/ChangeLog
View file

@ -1,3 +1,9 @@
2004-06-21 Geoffrey Keating <geoffk@apple.com>
* files.c (should_stack_file): Correct swapped parameters to call
to cb.read_pch.
* pch.c (cpp_valid_state): Handle -fpreprocessed.
2004-06-15 Paolo Bonzini <bonzini@gnu.org>
* Makefile.in: Regenerate with automake 1.8.5.

2
libcpp/files.c
View file

@ -625,7 +625,7 @@ should_stack_file (cpp_reader *pfile, _cpp_file *file, bool import)
/* Handle PCH files immediately; don't stack them. */
if (file->pch)
{
pfile->cb.read_pch (pfile, file->path, file->fd, file->pchname);
pfile->cb.read_pch (pfile, file->pchname, file->fd, file->path);
close (file->fd);
file->fd = -1;
return false;

11
libcpp/pch.c
View file

@ -438,13 +438,22 @@ cpp_valid_state (cpp_reader *r, const char *name, int fd)
if (m.name_length == 0)
break;
/* If this file is already preprocessed, there won't be any
macros defined, and that's OK. */
if (CPP_OPTION (r, preprocessed))
{
if (lseek (fd, m.definition_length, SEEK_CUR) == -1)
goto error;
continue;
}
if (m.definition_length > namebufsz)
{
free (namebuf);
namebufsz = m.definition_length + 256;
namebuf = xmalloc (namebufsz);
}
if ((size_t)read (fd, namebuf, m.definition_length)
!= m.definition_length)
goto error;