From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org, Paul Eggert <eggert@cs.ucla.edu>,
bug-gnulib@gnu.org
Subject: [PATCH 8/8] posix: Remove all alloca usage in glob
Date: Tue, 5 Jan 2021 15:58:20 -0300 [thread overview]
Message-ID: <20210105185820.3796657-9-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20210105185820.3796657-1-adhemerval.zanella@linaro.org>
With alloca usage removal from glob this patch wraps it up by removing
all the alloca defines and macros usage.
Checked on x86_64-linux-gnu.
---
posix/glob.c | 23 ++++++++---------------
1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/posix/glob.c b/posix/glob.c
index b6727ee884..c7a89a5298 100644
--- a/posix/glob.c
+++ b/posix/glob.c
@@ -42,7 +42,6 @@
#ifndef WINDOWS32
# include <pwd.h>
-# include <alloca.h>
#endif
#include <errno.h>
@@ -74,7 +73,6 @@
# define __fxstatat64(_, d, f, st, flag) fstatat (d, f, st, flag)
# define struct_stat64 struct stat
# ifndef __MVS__
-# define __alloca alloca
# endif
# define __readdir readdir
# define COMPILE_GLOB64
@@ -184,12 +182,6 @@ convert_dirent64 (const struct dirent64 *source)
# ifdef GNULIB_defined_closedir
# undef closedir
# endif
-
-/* Just use malloc. */
-# define __libc_use_alloca(n) false
-# define alloca_account(len, avar) ((void) (len), (void) (avar), (void *) 0)
-# define extend_alloca_account(buf, len, newlen, avar) \
- ((void) (buf), (void) (len), (void) (newlen), (void) (avar), (void *) 0)
#endif
static int
@@ -217,7 +209,7 @@ glob_lstat (glob_t *pglob, int flags, const char *fullname)
static int glob_in_dir (const char *pattern, const char *directory,
int flags, int (*errfunc) (const char *, int),
- glob_t *pglob, size_t alloca_used);
+ glob_t *pglob);
static int prefix_array (const char *prefix, char **array, size_t n) __THROWNL;
static int collated_compare (const void *, const void *) __THROWNL;
@@ -282,7 +274,6 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
int meta;
glob_t dirs;
int retval = 0;
- size_t alloca_used = 0;
struct char_array dirname;
bool dirname_modified;
@@ -530,11 +521,13 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
char *drive_spec;
++dirlen;
- drive_spec = __alloca (dirlen + 1);
+ drive_spec = malloca (dirlen + 1);
*((char *) mempcpy (drive_spec, pattern, dirlen)) = '\0';
/* For now, disallow wildcards in the drive spec, to
prevent infinite recursion in glob. */
- if (__glob_pattern_p (drive_spec, !(flags & GLOB_NOESCAPE)))
+ int r = __glob_pattern_p (drive_spec, !(flags & GLOB_NOESCAPE));
+ free (drive_spec);
+ if (r != 0)
{
retval = GLOB_NOMATCH;
goto out;
@@ -935,7 +928,7 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
status = glob_in_dir (filename, dirs.gl_pathv[i],
((flags | GLOB_APPEND)
& ~(GLOB_NOCHECK | GLOB_NOMAGIC)),
- errfunc, pglob, alloca_used);
+ errfunc, pglob);
if (status == GLOB_NOMATCH)
/* No matches in this directory. Try the next. */
continue;
@@ -1040,7 +1033,7 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
if (dirname_modified)
flags &= ~(GLOB_NOCHECK | GLOB_NOMAGIC);
status = glob_in_dir (filename, char_array_str (&dirname), flags,
- errfunc, pglob, alloca_used);
+ errfunc, pglob);
if (status != 0)
{
if (status == GLOB_NOMATCH && flags != orig_flags
@@ -1206,7 +1199,7 @@ struct globnames_result
static int
glob_in_dir (const char *pattern, const char *directory, int flags,
int (*errfunc) (const char *, int),
- glob_t *pglob, size_t alloca_used)
+ glob_t *pglob)
{
void *stream = NULL;
struct globnames_array globnames;
--
2.25.1
next prev parent reply other threads:[~2021-01-05 18:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 18:58 [PATCH 0/8] Remove alloca usage from glob Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 1/8] malloc: Add specialized dynarray for C strings Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 2/8] posix: Use char_array for internal glob dirname Adhemerval Zanella
2021-03-23 16:08 ` Arjun Shankar
2021-03-24 17:39 ` Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 3/8] posix: Remove alloca usage for GLOB_BRACE on glob Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 4/8] posix: Remove alloca usage on glob dirname Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 5/8] posix: Use dynarray for globname in glob Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 6/8] posix: Remove alloca usage on glob user_name Adhemerval Zanella
2021-01-05 18:58 ` [PATCH 7/8] posix: Use char_array for home_dir in glob Adhemerval Zanella
2021-01-05 18:58 ` Adhemerval Zanella [this message]
2021-01-13 19:36 ` [PATCH 0/8] Remove alloca usage from glob Paul Eggert
-- strict thread matches above, loose matches on Subject: below --
2017-11-21 13:55 [PATCH 0/8] posix: glob fixes and refactor Adhemerval Zanella
2017-11-21 13:55 ` [PATCH 8/8] posix: Remove all alloca usage in glob Adhemerval Zanella
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210105185820.3796657-9-adhemerval.zanella@linaro.org \
--to=adhemerval.zanella@linaro.org \
--cc=bug-gnulib@gnu.org \
--cc=eggert@cs.ucla.edu \
--cc=libc-alpha@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).