mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-21 21:22:38 +08:00
cppfiles.c (ENOTDIR): Remove.
* cppfiles.c (ENOTDIR): Remove. (open_file_in_dir): Rename find_file_in_dir. Handle errors other than ENOENT here. (once_only_file_p): Rename should_stack_file. (find_file, open_file_failed, read_file_guts): Report errors with full path name. (read_file): Move pch handling to should_stack_file. (should_stack_file): Handle PCH and once-only issues, and reading the file. (stack_file): Don't do file reads. From-SVN: r70104
This commit is contained in:
Neil Booth
Neil Booth
parent
7318eb21d1
commit
cf1ee30c67
@ -1,3 +1,16 @@
|
||||
2003-08-02 Neil Booth <neil@daikokuya.co.uk>
|
||||
|
||||
* cppfiles.c (ENOTDIR): Remove.
|
||||
(open_file_in_dir): Rename find_file_in_dir. Handle errors
|
||||
other than ENOENT here.
|
||||
(once_only_file_p): Rename should_stack_file.
|
||||
(find_file, open_file_failed, read_file_guts): Report errors
|
||||
with full path name.
|
||||
(read_file): Move pch handling to should_stack_file.
|
||||
(should_stack_file): Handle PCH and once-only issues, and
|
||||
reading the file.
|
||||
(stack_file): Don't do file reads.
|
||||
|
||||
2003-08-02 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
|
||||
|
||||
* libgcov.c (gcov_exit): Cleanup and fix.
|
||||
|
||||
175
gcc/cppfiles.c
175
gcc/cppfiles.c
@ -50,9 +50,6 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||||
#ifndef O_BINARY
|
||||
# define O_BINARY 0
|
||||
#endif
|
||||
#ifndef ENOTDIR
|
||||
# define ENOTDIR 0
|
||||
#endif
|
||||
|
||||
/* This structure represents a file searched for by CPP, whether it
|
||||
exists or not. An instance may be pointed to by more than one
|
||||
@ -162,13 +159,13 @@ struct file_hash_entry
|
||||
|
||||
static bool open_file (_cpp_file *file);
|
||||
static bool pch_open_file (cpp_reader *pfile, _cpp_file *file);
|
||||
static bool open_file_in_dir (cpp_reader *pfile, _cpp_file *file);
|
||||
static bool find_file_in_dir (cpp_reader *pfile, _cpp_file *file);
|
||||
static _cpp_file *find_file (cpp_reader *, const char *fname,
|
||||
cpp_dir *start_dir, bool fake);
|
||||
static bool read_file_guts (cpp_reader *pfile, _cpp_file *file);
|
||||
static bool read_file (cpp_reader *pfile, _cpp_file *file);
|
||||
static bool stack_file (cpp_reader *, _cpp_file *file, bool import);
|
||||
static bool once_only_file_p (cpp_reader *, _cpp_file *file, bool import);
|
||||
static bool should_stack_file (cpp_reader *, _cpp_file *file, bool import);
|
||||
static struct cpp_dir *search_path_head (cpp_reader *, const char *fname,
|
||||
int angle_brackets, enum include_type);
|
||||
static const char *dir_name_of_file (_cpp_file *file);
|
||||
@ -300,9 +297,10 @@ pch_open_file (cpp_reader *pfile, _cpp_file *file)
|
||||
}
|
||||
|
||||
/* Try to open the path FILE->name appended to FILE->dir. This is
|
||||
where remap and PCH intercept the file lookup process. */
|
||||
where remap and PCH intercept the file lookup process. Return true
|
||||
if the file was found, whether or not the open was successful. */
|
||||
static bool
|
||||
open_file_in_dir (cpp_reader *pfile, _cpp_file *file)
|
||||
find_file_in_dir (cpp_reader *pfile, _cpp_file *file)
|
||||
{
|
||||
char *path;
|
||||
|
||||
@ -318,8 +316,14 @@ open_file_in_dir (cpp_reader *pfile, _cpp_file *file)
|
||||
if (open_file (file))
|
||||
return true;
|
||||
|
||||
if (file->err_no != ENOENT)
|
||||
{
|
||||
open_file_failed (pfile, file);
|
||||
return true;
|
||||
}
|
||||
|
||||
free (path);
|
||||
file->path = NULL;
|
||||
file->path = file->name;
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -360,10 +364,11 @@ find_file (cpp_reader *pfile, const char *fname, cpp_dir *start_dir, bool fake)
|
||||
/* Try each path in the include chain. */
|
||||
for (; !fake ;)
|
||||
{
|
||||
if (open_file_in_dir (pfile, file))
|
||||
if (find_file_in_dir (pfile, file))
|
||||
break;
|
||||
|
||||
if (file->err_no != ENOENT || (file->dir = file->dir->next) == NULL)
|
||||
file->dir = file->dir->next;
|
||||
if (file->dir == NULL)
|
||||
{
|
||||
open_file_failed (pfile, file);
|
||||
break;
|
||||
@ -414,7 +419,7 @@ read_file_guts (cpp_reader *pfile, _cpp_file *file)
|
||||
|
||||
if (S_ISBLK (file->st.st_mode))
|
||||
{
|
||||
cpp_error (pfile, DL_ERROR, "%s is a block device", file->name);
|
||||
cpp_error (pfile, DL_ERROR, "%s is a block device", file->path);
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -431,7 +436,7 @@ read_file_guts (cpp_reader *pfile, _cpp_file *file)
|
||||
does not bite us. */
|
||||
if (file->st.st_size > INTTYPE_MAXIMUM (ssize_t))
|
||||
{
|
||||
cpp_error (pfile, DL_ERROR, "%s is too large", file->name);
|
||||
cpp_error (pfile, DL_ERROR, "%s is too large", file->path);
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -460,12 +465,12 @@ read_file_guts (cpp_reader *pfile, _cpp_file *file)
|
||||
|
||||
if (count < 0)
|
||||
{
|
||||
cpp_errno (pfile, DL_ERROR, file->name);
|
||||
cpp_errno (pfile, DL_ERROR, file->path);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (regular && total != size && STAT_SIZE_RELIABLE (file->st))
|
||||
cpp_error (pfile, DL_WARNING, "%s is shorter than expected", file->name);
|
||||
cpp_error (pfile, DL_WARNING, "%s is shorter than expected", file->path);
|
||||
|
||||
/* Shrink buffer if we allocated substantially too much. */
|
||||
if (total + 4096 < size)
|
||||
@ -487,19 +492,6 @@ read_file_guts (cpp_reader *pfile, _cpp_file *file)
|
||||
static bool
|
||||
read_file (cpp_reader *pfile, _cpp_file *file)
|
||||
{
|
||||
/* Skip if the file had a header guard and the macro is defined. */
|
||||
if (file->cmacro && file->cmacro->type == NT_MACRO)
|
||||
return false;
|
||||
|
||||
/* PCH files get dealt with immediately. */
|
||||
if (include_pch_p (file))
|
||||
{
|
||||
pfile->cb.read_pch (pfile, file->path, file->fd, file->pchname);
|
||||
close (file->fd);
|
||||
file->fd = -1;
|
||||
return false;
|
||||
}
|
||||
|
||||
/* If we already have its contents in memory, succeed immediately. */
|
||||
if (file->buffer_valid)
|
||||
return true;
|
||||
@ -521,6 +513,70 @@ read_file (cpp_reader *pfile, _cpp_file *file)
|
||||
return !file->dont_read;
|
||||
}
|
||||
|
||||
/* Returns TRUE if FILE's contents have been successfully placed in
|
||||
FILE->buffer and the file should be stacked, otherwise false. */
|
||||
static bool
|
||||
should_stack_file (cpp_reader *pfile, _cpp_file *file, bool import)
|
||||
{
|
||||
_cpp_file *f;
|
||||
|
||||
/* Skip if the file had a header guard and the macro is defined.
|
||||
PCH relies on this appearing before the PCH handler below. */
|
||||
if (file->cmacro && file->cmacro->type == NT_MACRO)
|
||||
return false;
|
||||
|
||||
/* Handle PCH files immediately; don't stack them. */
|
||||
if (include_pch_p (file))
|
||||
{
|
||||
pfile->cb.read_pch (pfile, file->path, file->fd, file->pchname);
|
||||
close (file->fd);
|
||||
file->fd = -1;
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Did this file contain #pragma once? */
|
||||
if (file->pragma_once)
|
||||
return false;
|
||||
|
||||
/* Are we #import-ing a previously #import-ed file? */
|
||||
if (import && file->import)
|
||||
return false;
|
||||
|
||||
/* Read the file's contents. */
|
||||
if (!read_file (pfile, file))
|
||||
return false;
|
||||
|
||||
/* Nothing to check if this isn't #import and there haven't been any
|
||||
#pragma_once directives. */
|
||||
if (!import && !pfile->saw_pragma_once)
|
||||
return true;
|
||||
|
||||
/* We may have #imported it under a different name, though. Look
|
||||
for likely candidates and compare file contents to be sure. */
|
||||
for (f = pfile->once_only_files; f; f = f->once_only_next)
|
||||
{
|
||||
if (f == file)
|
||||
continue;
|
||||
|
||||
if (!f->pragma_once && !(f->import && import))
|
||||
continue;
|
||||
|
||||
if (f->err_no == 0
|
||||
&& f->st.st_mtime == file->st.st_mtime
|
||||
&& f->st.st_size == file->st.st_size
|
||||
&& read_file (pfile, f)
|
||||
/* Size might have changed in read_file(). */
|
||||
&& f->st.st_size == file->st.st_size
|
||||
&& !memcmp (f->buffer, file->buffer, f->st.st_size))
|
||||
break;
|
||||
}
|
||||
|
||||
if (import || f != NULL)
|
||||
_cpp_mark_file_once_only (pfile, file, import);
|
||||
|
||||
return f == NULL;
|
||||
}
|
||||
|
||||
/* Place the file referenced by FILE into a new buffer on the buffer
|
||||
stack if possible. IMPORT is true if this stacking attempt is
|
||||
because of a #import directive. Returns true if a buffer is
|
||||
@ -530,14 +586,10 @@ stack_file (cpp_reader *pfile, _cpp_file *file, bool import)
|
||||
{
|
||||
cpp_buffer *buffer;
|
||||
int sysp;
|
||||
const char *fname;
|
||||
|
||||
if (once_only_file_p (pfile, file, import))
|
||||
if (!should_stack_file (pfile, file, import))
|
||||
return false;
|
||||
|
||||
if (!read_file (pfile, file))
|
||||
return false;
|
||||
|
||||
sysp = MAX ((pfile->map ? pfile->map->sysp : 0),
|
||||
(file->dir ? file->dir->sysp : 0));
|
||||
|
||||
@ -562,64 +614,11 @@ stack_file (cpp_reader *pfile, _cpp_file *file, bool import)
|
||||
pfile->mi_cmacro = 0;
|
||||
|
||||
/* Generate the call back. */
|
||||
fname = file->name;
|
||||
_cpp_do_file_change (pfile, LC_ENTER, fname, 1, sysp);
|
||||
_cpp_do_file_change (pfile, LC_ENTER, file->name, 1, sysp);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Returns TRUE if FILE has been previously read and should not be
|
||||
read again. */
|
||||
static bool
|
||||
once_only_file_p (cpp_reader *pfile, _cpp_file *file, bool import)
|
||||
{
|
||||
_cpp_file *f;
|
||||
|
||||
/* Nothing to check if this isn't #import and there haven't been any
|
||||
#pragma_once directives. */
|
||||
if (!import && !pfile->saw_pragma_once)
|
||||
return false;
|
||||
|
||||
/* Did this file contain #pragma once? */
|
||||
if (file->pragma_once)
|
||||
return true;
|
||||
|
||||
/* Are we #import-ing a previously #import-ed file? */
|
||||
if (import && file->import)
|
||||
return true;
|
||||
|
||||
/* Read the file contents now. stack_file would do it later, and
|
||||
we're smart enough to not do it twice, so this is no loss. Note
|
||||
we don't mark the file once-only if we can't read it. */
|
||||
if (!read_file (pfile, file))
|
||||
return false;
|
||||
|
||||
/* We may have #imported it under a different name, though. Look
|
||||
for likely candidates and compare file contents to be sure. */
|
||||
for (f = pfile->once_only_files; f; f = f->once_only_next)
|
||||
{
|
||||
if (f == file)
|
||||
continue;
|
||||
|
||||
if (!f->pragma_once && !(f->import && import))
|
||||
continue;
|
||||
|
||||
if (f->err_no == 0
|
||||
&& f->st.st_mtime == file->st.st_mtime
|
||||
&& f->st.st_size == file->st.st_size
|
||||
&& read_file (pfile, f)
|
||||
/* Size might have changed in read_file(). */
|
||||
&& f->st.st_size == file->st.st_size
|
||||
&& !memcmp (f->buffer, file->buffer, f->st.st_size))
|
||||
break;
|
||||
}
|
||||
|
||||
if (import || f != NULL)
|
||||
_cpp_mark_file_once_only (pfile, file, import);
|
||||
|
||||
return f != NULL;
|
||||
}
|
||||
|
||||
/* Mark FILE to be included once only. IMPORT is true if because of
|
||||
#import, otherwise it is assumed to be #pragma once. */
|
||||
void
|
||||
@ -742,9 +741,9 @@ open_file_failed (cpp_reader *pfile, _cpp_file *file)
|
||||
/* If we are outputting dependencies but not for this file then
|
||||
don't error because we can still produce correct output. */
|
||||
if (CPP_OPTION (pfile, deps.style) && ! print_dep)
|
||||
cpp_errno (pfile, DL_WARNING, file->name);
|
||||
cpp_errno (pfile, DL_WARNING, file->path);
|
||||
else
|
||||
cpp_errno (pfile, DL_ERROR, file->name);
|
||||
cpp_errno (pfile, DL_ERROR, file->path);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user