*: introduce and use FAST_FUNC: regparm on i386, otherwise no-on

text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped

archival/libunarchive/archive_xread_all_eof.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-ssize_t archive_xread_all_eof(archive_handle_t *archive_handle,
+ssize_t FAST_FUNC archive_xread_all_eof(archive_handle_t *archive_handle,
 			unsigned char *buf, size_t count)
 {
 	ssize_t size;

archival/libunarchive/data_align.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void data_align(archive_handle_t *archive_handle, unsigned boundary)
+void FAST_FUNC data_align(archive_handle_t *archive_handle, unsigned boundary)
 {
 	unsigned skip_amount = (boundary - (archive_handle->offset % boundary)) % boundary;
 

archival/libunarchive/data_extract_all.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void data_extract_all(archive_handle_t *archive_handle)
+void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
 {
 	file_header_t *file_header = archive_handle->file_header;
 	int dst_fd;

archival/libunarchive/data_extract_to_buffer.c

@@ -8,7 +8,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void data_extract_to_buffer(archive_handle_t *archive_handle)
+void FAST_FUNC data_extract_to_buffer(archive_handle_t *archive_handle)
 {
 	unsigned int size = archive_handle->file_header->size;
 

archival/libunarchive/data_extract_to_stdout.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void data_extract_to_stdout(archive_handle_t *archive_handle)
+void FAST_FUNC data_extract_to_stdout(archive_handle_t *archive_handle)
 {
 	bb_copyfd_exact_size(archive_handle->src_fd,
 			STDOUT_FILENO,

archival/libunarchive/data_skip.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void data_skip(archive_handle_t *archive_handle)
+void FAST_FUNC data_skip(archive_handle_t *archive_handle)
 {
 	archive_handle->seek(archive_handle, archive_handle->file_header->size);
 }

archival/libunarchive/decompress_bunzip2.c

@@ -526,7 +526,7 @@ static int get_next_block(bunzip_data *bd)
    are ignored, data is written to out_fd and return is RETVAL_OK or error.
 */
 
-int read_bunzip(bunzip_data *bd, char *outbuf, int len)
+int FAST_FUNC read_bunzip(bunzip_data *bd, char *outbuf, int len)
 {
 	const unsigned *dbuf;
 	int pos, current, previous, gotcount;
@@ -643,7 +643,7 @@ int read_bunzip(bunzip_data *bd, char *outbuf, int len)
    should work for NOFORK applets too, we must be extremely careful to not leak
    any allocations! */
 
-int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf,
+int FAST_FUNC start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf,
 						int len)
 {
 	bunzip_data *bd;
@@ -699,7 +699,7 @@ int start_bunzip(bunzip_data **bdp, int in_fd, const unsigned char *inbuf,
 	return RETVAL_OK;
 }
 
-void dealloc_bunzip(bunzip_data *bd)
+void FAST_FUNC dealloc_bunzip(bunzip_data *bd)
 {
 	free(bd->dbuf);
 	free(bd);
@@ -708,7 +708,7 @@ void dealloc_bunzip(bunzip_data *bd)
 
 /* Decompress src_fd to dst_fd.  Stops at end of bzip data, not end of file. */
 
-USE_DESKTOP(long long) int
+USE_DESKTOP(long long) int FAST_FUNC
 unpack_bz2_stream(int src_fd, int dst_fd)
 {
 	USE_DESKTOP(long long total_written = 0;)

archival/libunarchive/decompress_uncompress.c

@@ -70,7 +70,7 @@
  * be stored in the compressed file.
  */
 
-USE_DESKTOP(long long) int
+USE_DESKTOP(long long) int FAST_FUNC
 uncompress(int fd_in, int fd_out)
 {
 	USE_DESKTOP(long long total_written = 0;)

archival/libunarchive/decompress_unlzma.c

@@ -229,7 +229,7 @@ enum {
 };
 
 
-USE_DESKTOP(long long) int
+USE_DESKTOP(long long) int FAST_FUNC
 unpack_lzma_stream(int src_fd, int dst_fd)
 {
 	USE_DESKTOP(long long total_written = 0;)

archival/libunarchive/decompress_unzip.c

@@ -1033,7 +1033,7 @@ inflate_unzip_internal(STATE_PARAM int in, int out)
 
 /* For unzip */
 
-USE_DESKTOP(long long) int
+USE_DESKTOP(long long) int FAST_FUNC
 inflate_unzip(inflate_unzip_result *res, off_t compr_size, int in, int out)
 {
 	USE_DESKTOP(long long) int n;
@@ -1176,7 +1176,7 @@ static int check_header_gzip(STATE_PARAM_ONLY)
 	return 1;
 }
 
-USE_DESKTOP(long long) int
+USE_DESKTOP(long long) int FAST_FUNC
 unpack_gz_stream(int in, int out)
 {
 	uint32_t v32;

archival/libunarchive/filter_accept_all.c

@@ -9,7 +9,7 @@
 #include "unarchive.h"
 
 /* Accept any non-null name, its not really a filter at all */
-char filter_accept_all(archive_handle_t *archive_handle)
+char FAST_FUNC filter_accept_all(archive_handle_t *archive_handle)
 {
 	if (archive_handle->file_header->name)
 		return EXIT_SUCCESS;

archival/libunarchive/filter_accept_list.c

@@ -11,7 +11,7 @@
 /*
  * Accept names that are in the accept list, ignoring reject list.
  */
-char filter_accept_list(archive_handle_t *archive_handle)
+char FAST_FUNC filter_accept_list(archive_handle_t *archive_handle)
 {
 	if (find_list_entry(archive_handle->accept, archive_handle->file_header->name))
 		return EXIT_SUCCESS;

archival/libunarchive/filter_accept_list_reassign.c

@@ -13,7 +13,7 @@
  * e.g. if its a .tar.gz modify archive_handle->sub_archive to process a .tar.gz
  * or if its a .tar.bz2 make archive_handle->sub_archive handle that
  */
-char filter_accept_list_reassign(archive_handle_t *archive_handle)
+char FAST_FUNC filter_accept_list_reassign(archive_handle_t *archive_handle)
 {
 	/* Check the file entry is in the accept list */
 	if (find_list_entry(archive_handle->accept, archive_handle->file_header->name)) {

archival/libunarchive/filter_accept_reject_list.c

@@ -11,7 +11,7 @@
 /*
  * Accept names that are in the accept list and not in the reject list
  */
-char filter_accept_reject_list(archive_handle_t *archive_handle)
+char FAST_FUNC filter_accept_reject_list(archive_handle_t *archive_handle)
 {
 	const char *key;
 	const llist_t *reject_entry;

archival/libunarchive/find_list_entry.c

@@ -10,7 +10,7 @@
 #include "unarchive.h"
 
 /* Find a string in a shell pattern list */
-const llist_t *find_list_entry(const llist_t *list, const char *filename)
+const llist_t* FAST_FUNC find_list_entry(const llist_t *list, const char *filename)
 {
 	while (list) {
 		if (fnmatch(list->data, filename, 0) == 0) {
@@ -24,7 +24,7 @@ const llist_t *find_list_entry(const llist_t *list, const char *filename)
 /* Same, but compares only path components present in pattern
  * (extra trailing path components in filename are assumed to match)
  */
-const llist_t *find_list_entry2(const llist_t *list, const char *filename)
+const llist_t* FAST_FUNC find_list_entry2(const llist_t *list, const char *filename)
 {
 	char buf[PATH_MAX];
 	int pattern_slash_cnt;

archival/libunarchive/get_header_ar.c

@@ -7,7 +7,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-char get_header_ar(archive_handle_t *archive_handle)
+char FAST_FUNC get_header_ar(archive_handle_t *archive_handle)
 {
 	int err;
 	file_header_t *typed = archive_handle->file_header;

archival/libunarchive/get_header_cpio.c

@@ -17,7 +17,7 @@ typedef struct hardlinks_s {
 	char name[1];
 } hardlinks_t;
 
-char get_header_cpio(archive_handle_t *archive_handle)
+char FAST_FUNC get_header_cpio(archive_handle_t *archive_handle)
 {
 	static hardlinks_t *saved_hardlinks = NULL;
 	static hardlinks_t *saved_hardlinks_created = NULL;

archival/libunarchive/get_header_tar.c

@@ -43,7 +43,7 @@ static unsigned long long getOctal(char *str, int len)
 #define GET_OCTAL(a) getOctal((a), sizeof(a))
 
 void BUG_tar_header_size(void);
-char get_header_tar(archive_handle_t *archive_handle)
+char FAST_FUNC get_header_tar(archive_handle_t *archive_handle)
 {
 	static smallint end;
 #if ENABLE_FEATURE_TAR_AUTODETECT
@@ -133,7 +133,7 @@ char get_header_tar(archive_handle_t *archive_handle)
 	     || memcmp(tar.magic, "\0\0\0\0", 5) != 0)
 	) {
 #if ENABLE_FEATURE_TAR_AUTODETECT
-		char (*get_header_ptr)(archive_handle_t *);
+		char FAST_FUNC (*get_header_ptr)(archive_handle_t *);
 
 		/* tar gz/bz autodetect: check for gz/bz2 magic.
 		 * If it is the very first block, and we see the magic,

archival/libunarchive/get_header_tar_bz2.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-char get_header_tar_bz2(archive_handle_t *archive_handle)
+char FAST_FUNC get_header_tar_bz2(archive_handle_t *archive_handle)
 {
 	/* Can't lseek over pipes */
 	archive_handle->seek = seek_by_read;

archival/libunarchive/get_header_tar_gz.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-char get_header_tar_gz(archive_handle_t *archive_handle)
+char FAST_FUNC get_header_tar_gz(archive_handle_t *archive_handle)
 {
 #if BB_MMU
 	unsigned char magic[2];

archival/libunarchive/get_header_tar_lzma.c

@@ -9,7 +9,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-char get_header_tar_lzma(archive_handle_t * archive_handle)
+char FAST_FUNC get_header_tar_lzma(archive_handle_t * archive_handle)
 {
 	/* Can't lseek over pipes */
 	archive_handle->seek = seek_by_read;

archival/libunarchive/header_list.c

@@ -5,7 +5,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void header_list(const file_header_t *file_header)
+void FAST_FUNC header_list(const file_header_t *file_header)
 {
 	puts(file_header->name);
 }

archival/libunarchive/header_skip.c

@@ -5,6 +5,6 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void header_skip(const file_header_t *file_header ATTRIBUTE_UNUSED)
+void FAST_FUNC header_skip(const file_header_t *file_header ATTRIBUTE_UNUSED)
 {
 }

archival/libunarchive/header_verbose_list.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void header_verbose_list(const file_header_t *file_header)
+void FAST_FUNC header_verbose_list(const file_header_t *file_header)
 {
 	struct tm *mtime = localtime(&(file_header->mtime));
 

archival/libunarchive/init_handle.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-archive_handle_t *init_handle(void)
+archive_handle_t* FAST_FUNC init_handle(void)
 {
 	archive_handle_t *archive_handle;
 

archival/libunarchive/open_transformer.c

@@ -11,8 +11,8 @@
  * On MMU machine, the transform_prog is removed by macro magic
  * in include/unarchive.h. On NOMMU, transformer is removed.
  */
-int open_transformer(int src_fd,
-	USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd),
+int FAST_FUNC open_transformer(int src_fd,
+	USE_DESKTOP(long long) int FAST_FUNC (*transformer)(int src_fd, int dst_fd),
 	const char *transform_prog)
 {
 	struct fd_pair fd_pipe;

archival/libunarchive/seek_by_jump.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void seek_by_jump(const archive_handle_t *archive_handle, unsigned amount)
+void FAST_FUNC seek_by_jump(const archive_handle_t *archive_handle, unsigned amount)
 {
 	if (lseek(archive_handle->src_fd, (off_t) amount, SEEK_CUR) == (off_t) -1) {
 		if (errno == ESPIPE)

archival/libunarchive/seek_by_read.c

@@ -9,7 +9,7 @@
 /*  If we are reading through a pipe, or from stdin then we can't lseek,
  *  we must read and discard the data to skip over it.
  */
-void seek_by_read(const archive_handle_t *archive_handle, unsigned jump_size)
+void FAST_FUNC seek_by_read(const archive_handle_t *archive_handle, unsigned jump_size)
 {
 	if (jump_size)
 		bb_copyfd_exact_size(archive_handle->src_fd, -1, jump_size);

archival/libunarchive/unpack_ar_archive.c

@@ -6,7 +6,7 @@
 #include "libbb.h"
 #include "unarchive.h"
 
-void unpack_ar_archive(archive_handle_t *ar_archive)
+void FAST_FUNC unpack_ar_archive(archive_handle_t *ar_archive)
 {
 	char magic[7];