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| author | Richard Guenther <rguenther@suse.de> | 2009-09-22 08:37:31 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-09-22 08:37:31 +0000 |
| commit | 9a8a2b7a385aa2a749a3c7a263512707626a3045 (patch) | |
| tree | 62a3ca30e62aa783756f4c06b09db7da83251339 /libcpp/files.c | |
| parent | f61e18ec67d800e358448907260604809f3151b9 (diff) | |
| download | gcc-9a8a2b7a385aa2a749a3c7a263512707626a3045.tar.gz | |
re PR preprocessor/38987 (Including a precompiled header from another header causes invalid assembly to be generated)
2009-09-22 Richard Guenther <rguenther@suse.de>
PR pch/38987
* files.c (pch_open_file): Disallow non-toplevel PCH inclusion.
From-SVN: r151970
Diffstat (limited to 'libcpp/files.c')
| -rw-r--r-- | libcpp/files.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libcpp/files.c b/libcpp/files.c index 96ba7e80afc..ecf9d6c4651 100644 --- a/libcpp/files.c +++ b/libcpp/files.c @@ -288,6 +288,12 @@ pch_open_file (cpp_reader *pfile, _cpp_file *file, bool *invalid_pch) if (file->name[0] == '\0' || !pfile->cb.valid_pch) return false; + /* If the file is not included as first include from either the toplevel + file or the command-line it is not a valid use of PCH. */ + if (pfile->all_files + && pfile->all_files->next_file) + return false; + flen = strlen (path); len = flen + sizeof (extension); pchname = XNEWVEC (char, len); |