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libbb: eliminate a static data array in bb_mode_string()

Browse Source 
function                                             old     new   delta
print_stat                                           861     869      +8
header_verbose_list_ar                                73      77      +4
display_single                                       975     979      +4
header_verbose_list                                  237     239      +2
bb_mode_string                                       124     115      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 18/-9)               Total: 9 bytes
   text	   data	    bss	    dec	    hex	filename
1043136	    559	   5052	1048747	 1000ab	busybox_old
1043153	    559	   5020	1048732	 10009c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2021-09-17 01:13:58 +02:00
parent 4958c18134
commit 59ac467dc6
7 changed files with 16 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
archival/ar.c
View File

@@ -196,9 +196,10 @@ static int write_ar_archive(archive_handle_t *handle)
static void FAST_FUNC header_verbose_list_ar(const file_header_t *file_header)
{
const char *mode = bb_mode_string(file_header->mode);
char mode[12];
char *mtime;
bb_mode_string(mode, file_header->mode);
mtime = ctime(&file_header->mtime);
mtime[16] = ' ';
memmove(&mtime[17], &mtime[20], 4);

5
archival/libarchive/header_verbose_list.c
View File

@@ -9,6 +9,7 @@ void FAST_FUNC header_verbose_list(const file_header_t *file_header)
{
struct tm tm_time;
struct tm *ptm = &tm_time; //localtime(&file_header->mtime);
char modestr[12];
#if ENABLE_FEATURE_TAR_UNAME_GNAME
char uid[sizeof(int)*3 + 2];
@@ -29,7 +30,7 @@ void FAST_FUNC header_verbose_list(const file_header_t *file_header)
group = utoa(file_header->gid);
}
printf("%s %s/%s %9"OFF_FMT"u %4u-%02u-%02u %02u:%02u:%02u %s",
bb_mode_string(file_header->mode),
bb_mode_string(modestr, file_header->mode),
user,
group,
file_header->size,
@@ -46,7 +47,7 @@ void FAST_FUNC header_verbose_list(const file_header_t *file_header)
localtime_r(&file_header->mtime, ptm);
printf("%s %u/%u %9"OFF_FMT"u %4u-%02u-%02u %02u:%02u:%02u %s",
bb_mode_string(file_header->mode),
bb_mode_string(modestr, file_header->mode),
(unsigned)file_header->uid,
(unsigned)file_header->gid,
file_header->size,

3
coreutils/chmod.c
View File

@@ -91,8 +91,9 @@ static int FAST_FUNC fileAction(struct recursive_state *state,
|| (OPT_CHANGED
&& (statbuf->st_mode & 07777) != (newmode & 07777))
) {
char modestr[12];
printf("mode of '%s' changed to %04o (%s)\n", fileName,
newmode & 07777, bb_mode_string(newmode)+1);
newmode & 07777, bb_mode_string(modestr, newmode)+1);
}
return TRUE;
}

3
coreutils/ls.c
View File

@@ -503,7 +503,8 @@ static NOINLINE unsigned display_single(const struct dnode *dn)
column += printf("%6"OFF_FMT"u ", (off_t) (dn->dn_blocks >> 1));
if (opt & OPT_l) {
/* long listing: show mode */
column += printf("%-10s ", (char *) bb_mode_string(dn->dn_mode));
char modestr[12];
column += printf("%-10s ", (char *) bb_mode_string(modestr, dn->dn_mode));
/* long listing: show number of links */
column += printf("%4lu ", (long) dn->dn_nlink);
/* long listing: show user/group */

6
coreutils/stat.c
View File

@@ -339,7 +339,8 @@ static void FAST_FUNC print_stat(char *pformat, const char m,
strcat(pformat, "lo");
printf(pformat, (unsigned long) (statbuf->st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)));
} else if (m == 'A') {
printfs(pformat, bb_mode_string(statbuf->st_mode));
char modestr[12];
printfs(pformat, bb_mode_string(modestr, statbuf->st_mode));
} else if (m == 'f') {
strcat(pformat, "lx");
printf(pformat, (unsigned long) statbuf->st_mode);
@@ -702,6 +703,7 @@ static bool do_stat(const char *filename, const char *format)
bb_putchar('\n');
# endif
} else {
char modestr[12];
char *linkname = NULL;
struct passwd *pw_ent;
struct group *gw_ent;
@@ -736,7 +738,7 @@ static bool do_stat(const char *filename, const char *format)
bb_putchar('\n');
printf("Access: (%04lo/%10.10s) Uid: (%5lu/%8s) Gid: (%5lu/%8s)\n",
(unsigned long) (statbuf.st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)),
bb_mode_string(statbuf.st_mode),
bb_mode_string(modestr, statbuf.st_mode),
(unsigned long) statbuf.st_uid,
(pw_ent != NULL) ? pw_ent->pw_name : "UNKNOWN",
(unsigned long) statbuf.st_gid,

2
include/libbb.h
View File

@@ -442,7 +442,7 @@ void *xmmap_anon(size_t size) FAST_FUNC;
//TODO: supply a pointer to char[11] buffer (avoid statics)?
extern const char *bb_mode_string(mode_t mode) FAST_FUNC;
extern char *bb_mode_string(char buf[12], mode_t mode) FAST_FUNC;
extern int is_directory(const char *name, int followLinks) FAST_FUNC;
enum { /* cp.c, mv.c, install.c depend on these values. CAREFUL when changing them! */
FILEUTILS_PRESERVE_STATUS = 1 << 0, /* -p */

6
libbb/mode_string.c
View File

@@ -43,9 +43,8 @@ static const char type_chars[16] ALIGN1 = "?pc?d?b?-?l?s???";
/***************************************** 0123456789abcdef */
static const char mode_chars[7] ALIGN1 = "rwxSTst";
const char* FAST_FUNC bb_mode_string(mode_t mode)
char* FAST_FUNC bb_mode_string(char buf[12], mode_t mode)
{
static char buf[12];
char *p = buf;
int i, j, k;
@@ -83,9 +82,8 @@ static const char type_chars[16] ALIGN1 = "?pc?d?b?-?l?s???";
/********************************** 0123456789abcdef */
static const char mode_chars[7] ALIGN1 = "rwxSTst";
const char* FAST_FUNC bb_mode_string(mode_t mode)
char* FAST_FUNC bb_mode_string(char buf[12], mode_t mode)
{
static char buf[12];
char *p = buf;
int i, j, k, m;