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| author | Geoffrey Keating <geoffk@apple.com> | 2004-06-22 06:51:56 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@gcc.gnu.org> | 2004-06-22 06:51:56 +0000 |
| commit | c0d578e68f92d8add050826588146be0a6fd1ee0 (patch) | |
| tree | 33b0e3a2356eea4890c97f802528ed3f9e8ceebd /libcpp/pch.c | |
| parent | f6144c34c82da903797566d44901dad231a7e4a9 (diff) | |
| download | gcc-c0d578e68f92d8add050826588146be0a6fd1ee0.zip gcc-c0d578e68f92d8add050826588146be0a6fd1ee0.tar.gz gcc-c0d578e68f92d8add050826588146be0a6fd1ee0.tar.bz2 | |
c-opts.c (c_common_handle_option): Handle -fpch-preprocess.
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
Diffstat (limited to 'libcpp/pch.c')
| -rw-r--r-- | libcpp/pch.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libcpp/pch.c b/libcpp/pch.c index a9d139a..a343cd8 100644 --- a/libcpp/pch.c +++ b/libcpp/pch.c @@ -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; |