logread: eliminate usage of data/bss
ifup: don't remove virtual iface prefixes (eth0:0) function old new delta shbuf 4 - -4 SMrup 6 - -6 SMrdn 12 - -12 static.label_buf 20 4 -16 get_var 158 140 -18 ------------------------------------------------------------------------------ (add/remove: 0/3 grow/shrink: 0/2 up/down: 0/-56) Total: -56 bytes text data bss dec hex filename 783501 962 9260 793723 c1c7b busybox_old 783483 942 9244 793669 c1c45 busybox_unstripped
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@ -134,13 +134,15 @@ static char *get_var(const char *id, size_t idlen, struct interface_defn_t *ifd)
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int i;
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if (strncmpz(id, "iface", idlen) == 0) {
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char *result;
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static char label_buf[20];
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safe_strncpy(label_buf, ifd->iface, sizeof(label_buf));
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result = strchr(label_buf, ':');
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if (result) {
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*result = '\0';
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}
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static char *label_buf;
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//char *result;
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free(label_buf);
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label_buf = xstrdup(ifd->iface);
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// Remove virtual iface suffix - why?
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// ubuntu's ifup doesn't do this
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//result = strchrnul(label_buf, ':');
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//*result = '\0';
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return label_buf;
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}
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if (strncmpz(id, "label", idlen) == 0) {
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@ -11,7 +11,10 @@
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#if !defined CONFIG_SYSLOGD
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/* SYSLOG_NAMES defined to pull prioritynames[] and facilitynames[]
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* from syslog.h. Grrrr - glibc puts those in _rwdata_! :( */
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#define SYSLOG_NAMES
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#define SYSLOG_NAMES_CONST /* uclibc is saner :) */
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#include <sys/syslog.h>
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#else
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@ -18,16 +18,30 @@
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enum { KEY_ID = 0x414e4547 }; /* "GENA" */
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static struct shbuf_ds {
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struct shbuf_ds {
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int32_t size; // size of data - 1
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int32_t tail; // end of message list
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char data[1]; // messages
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} *shbuf;
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};
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// Semaphore operation structures
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static struct sembuf SMrup[1] = {{0, -1, IPC_NOWAIT | SEM_UNDO}}; // set SMrup
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static struct sembuf SMrdn[2] = {{1, 0}, {0, +1, SEM_UNDO}}; // set SMrdn
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static const struct sembuf init_sem[3] = {
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{0, -1, IPC_NOWAIT | SEM_UNDO},
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{1, 0}, {0, +1, SEM_UNDO}
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};
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struct globals {
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struct sembuf SMrup[1]; // {0, -1, IPC_NOWAIT | SEM_UNDO},
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struct sembuf SMrdn[2]; // {1, 0}, {0, +1, SEM_UNDO}
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struct shbuf_ds *shbuf;
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};
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define SMrup (G.SMrup)
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#define SMrdn (G.SMrdn)
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#define shbuf (G.shbuf)
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#define INIT_G() \
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do { \
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memcpy(SMrup, init_sem, sizeof(init_sem)); \
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} while (0)
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static void error_exit(const char *str) ATTRIBUTE_NORETURN;
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static void error_exit(const char *str)
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