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authorDenis Vlasenko2008-05-09 17:59:34 +0000
committerDenis Vlasenko2008-05-09 17:59:34 +0000
commit98636eb08c5ecc216e18970e11f7021206ac9b04 (patch)
treedfc70b7c6bf6276776c4e8198457dcf2df1e09fb /include
parent50dbed95fb7c0a97135b771385160ca26c377a15 (diff)
downloadbusybox-98636eb08c5ecc216e18970e11f7021206ac9b04.zip
busybox-98636eb08c5ecc216e18970e11f7021206ac9b04.tar.gz
Use intra-DSO calls when we build libbusybox. No-op for normal build.
This was Bernhard Fischer' idea. text data bss dec hex filename 773549 7781 9740 791070 c121e busybox.t7/0_lib/libbusybox.so.1.11.0.svn_unstripped 769683 7397 9740 786820 c0184 busybox.t9t/0_lib/libbusybox.so.1.11.0.svn_unstripped
Diffstat (limited to 'include')
-rw-r--r--include/busybox.h7
-rw-r--r--include/dump.h9
-rw-r--r--include/grp_.h14
-rw-r--r--include/libbb.h42
-rw-r--r--include/platform.h52
-rw-r--r--include/pwd_.h15
-rw-r--r--include/rtc_.h10
-rw-r--r--include/shadow_.h15
-rw-r--r--include/unarchive.h8
-rw-r--r--include/xatonum.h8
-rw-r--r--include/xregex.h9
11 files changed, 131 insertions, 58 deletions
diff --git a/include/busybox.h b/include/busybox.h
index 0c44d2f..314b951 100644
--- a/include/busybox.h
+++ b/include/busybox.h
@@ -9,6 +9,10 @@
#include "libbb.h"
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
/* order matters: used as index into "install_dir[]" in appletlib.c */
typedef enum bb_install_loc_t {
_BB_DIR_ROOT = 0,
@@ -67,5 +71,8 @@ int lbb_main(char **argv);
#endif
#endif
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
#endif /* _BB_INTERNAL_H_ */
diff --git a/include/dump.h b/include/dump.h
index 7e17154..20c39c4 100644
--- a/include/dump.h
+++ b/include/dump.h
@@ -1,4 +1,9 @@
/* vi: set sw=4 ts=4: */
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
#define F_IGNORE 0x01 /* %_A */
#define F_SETREP 0x02 /* rep count set, not default */
#define F_ADDRESS 0x001 /* print offset */
@@ -48,3 +53,7 @@ extern int bb_dump_blocksize; /* data block size */
extern int bb_dump_length; /* max bytes to read */
extern enum _vflag bb_dump_vflag;
extern off_t bb_dump_skip; /* bytes to skip */
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
diff --git a/include/grp_.h b/include/grp_.h
index 061b86e..45ee22b 100644
--- a/include/grp_.h
+++ b/include/grp_.h
@@ -21,15 +21,13 @@
* POSIX Standard: 9.2.1 Group Database Access <grp.h>
*/
-#if !ENABLE_USE_BB_PWD_GRP
-
-#include <grp.h>
-
-#else
-
#ifndef _GRP_H
#define _GRP_H 1
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
/* The group structure. */
struct group {
char *gr_name; /* Group name. */
@@ -128,6 +126,8 @@ extern int getgrouplist(__const char *__user, gid_t __group,
of which USER is a member. Also include GROUP. */
extern int initgroups(__const char *__user, gid_t __group);
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
-#endif /* grp.h */
#endif
diff --git a/include/libbb.h b/include/libbb.h
index 281152f..09dcc1b 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -65,15 +65,21 @@
#define setlocale(x,y) ((void)0)
#endif
-#include "pwd_.h"
-#include "grp_.h"
-/* ifdef it out, because it may include <shadow.h> */
-/* and we may not even _have_ <shadow.h>! */
+#ifdef DMALLOC
+#include <dmalloc.h>
+#endif
+
+#if !ENABLE_USE_BB_PWD_GRP
+# include <pwd.h>
+# include <grp.h>
+#endif
#if ENABLE_FEATURE_SHADOWPASSWDS
-#include "shadow_.h"
+# if !ENABLE_USE_BB_SHADOW
+# include <shadow.h>
+# endif
#endif
-/* Some libc's don't declare it, help them */
+/* Some libc's forget to declare these, help them */
extern char **environ;
#if defined(__GLIBC__) && __GLIBC__ < 2
@@ -106,6 +112,23 @@ struct sysinfo {
int sysinfo(struct sysinfo* info);
+/* Make all declarations hidden (-fvisibility flag only affects definitions) */
+/* (don't include system headers after this until corresponding pop!) */
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
+
+#if ENABLE_USE_BB_PWD_GRP
+# include "pwd_.h"
+# include "grp_.h"
+#endif
+#if ENABLE_FEATURE_SHADOWPASSWDS
+# if ENABLE_USE_BB_SHADOW
+# include "shadow_.h"
+# endif
+#endif
+
/* Tested to work correctly with all int types (IIRC :]) */
#define MAXINT(T) (T)( \
((T)-1) > 0 \
@@ -1344,11 +1367,12 @@ extern const char bb_default_login_shell[];
#undef isdigit
#define isdigit(a) ((unsigned)((a) - '0') <= 9)
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#ifdef DMALLOC
-#include <dmalloc.h>
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
#endif
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif /* __LIBBUSYBOX_H__ */
diff --git a/include/platform.h b/include/platform.h
index 57cff2c..0e0ccaf 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -17,7 +17,7 @@
#endif
/* __restrict is known in EGCS 1.2 and above. */
-#if !__GNUC_PREREQ (2,92)
+#if !__GNUC_PREREQ(2,92)
# ifndef __restrict
# define __restrict /* Ignore */
# endif
@@ -27,7 +27,7 @@
macros freely, and know that they will come into play for the
version of gcc in which they are supported. */
-#if !__GNUC_PREREQ (2,7)
+#if !__GNUC_PREREQ(2,7)
# ifndef __attribute__
# define __attribute__(x)
# endif
@@ -37,7 +37,7 @@
#if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L
/* it's a keyword */
#else
-# if __GNUC_PREREQ (2,7)
+# if __GNUC_PREREQ(2,7)
# define inline __inline__
# else
# define inline
@@ -48,49 +48,49 @@
# define __const const
#endif
-# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
-# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
-# define ATTRIBUTE_PACKED __attribute__ ((__packed__))
-# define ATTRIBUTE_ALIGNED(m) __attribute__ ((__aligned__(m)))
+#define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#define ATTRIBUTE_PACKED __attribute__ ((__packed__))
+#define ATTRIBUTE_ALIGNED(m) __attribute__ ((__aligned__(m)))
/* __NO_INLINE__: some gcc's do not honor inlining! :( */
-# if __GNUC_PREREQ (3,0) && !defined(__NO_INLINE__)
-# define ALWAYS_INLINE __attribute__ ((always_inline)) inline
+#if __GNUC_PREREQ(3,0) && !defined(__NO_INLINE__)
+# define ALWAYS_INLINE __attribute__ ((always_inline)) inline
/* I've seen a toolchain where I needed __noinline__ instead of noinline */
-# define NOINLINE __attribute__((__noinline__))
-# if !ENABLE_WERROR
-# define ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
-# define ATTRIBUTE_UNUSED_RESULT __attribute__ ((warn_unused_result))
-# else
-# define ATTRIBUTE_DEPRECATED /* n/a */
-# define ATTRIBUTE_UNUSED_RESULT /* n/a */
-# endif
+# define NOINLINE __attribute__((__noinline__))
+# if !ENABLE_WERROR
+# define ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
+# define ATTRIBUTE_UNUSED_RESULT __attribute__ ((warn_unused_result))
# else
-# define ALWAYS_INLINE inline /* n/a */
-# define NOINLINE /* n/a */
# define ATTRIBUTE_DEPRECATED /* n/a */
# define ATTRIBUTE_UNUSED_RESULT /* n/a */
# endif
+#else
+# define ALWAYS_INLINE inline /* n/a */
+# define NOINLINE /* n/a */
+# define ATTRIBUTE_DEPRECATED /* n/a */
+# define ATTRIBUTE_UNUSED_RESULT /* n/a */
+#endif
/* -fwhole-program makes all symbols local. The attribute externally_visible
forces a symbol global. */
-# if __GNUC_PREREQ (4,1)
-# define EXTERNALLY_VISIBLE __attribute__(( visibility("default") ))
+#if __GNUC_PREREQ(4,1)
+# define EXTERNALLY_VISIBLE __attribute__(( visibility("default") ))
//__attribute__ ((__externally_visible__))
-# else
-# define EXTERNALLY_VISIBLE
-# endif /* GNUC >= 4.1 */
+#else
+# define EXTERNALLY_VISIBLE
+#endif /* GNUC >= 4.1 */
/* We use __extension__ in some places to suppress -pedantic warnings
about GCC extensions. This feature didn't work properly before
gcc 2.8. */
-#if !__GNUC_PREREQ (2,8)
+#if !__GNUC_PREREQ(2,8)
# ifndef __extension__
# define __extension__
# endif
#endif
/* gcc-2.95 had no va_copy but only __va_copy. */
-#if !__GNUC_PREREQ (3,0)
+#if !__GNUC_PREREQ(3,0)
# include <stdarg.h>
# if !defined va_copy && defined __va_copy
# define va_copy(d,s) __va_copy((d),(s))
diff --git a/include/pwd_.h b/include/pwd_.h
index f47e4eb..6199034 100644
--- a/include/pwd_.h
+++ b/include/pwd_.h
@@ -21,15 +21,13 @@
* POSIX Standard: 9.2.2 User Database Access <pwd.h>
*/
-#if !ENABLE_USE_BB_PWD_GRP
-
-#include <pwd.h>
-
-#else
-
#ifndef _PWD_H
#define _PWD_H 1
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
/* The passwd structure. */
struct passwd {
char *pw_name; /* Username. */
@@ -118,5 +116,8 @@ extern int fgetpwent_r(FILE *__restrict __stream,
will expect, but this need not be the format of the password file. */
extern int getpw(uid_t __uid, char *__buffer);
-#endif /* pwd.h */
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
#endif
+
+#endif /* pwd.h */
diff --git a/include/rtc_.h b/include/rtc_.h
index df359da..b8e4de8 100644
--- a/include/rtc_.h
+++ b/include/rtc_.h
@@ -9,12 +9,14 @@
#include "libbb.h"
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
extern int rtc_adjtime_is_utc(void);
extern int rtc_xopen(const char **default_rtc, int flags);
extern time_t rtc_read_time(int fd, int utc);
-
-
/*
* Everything below this point has been copied from linux/rtc.h
* to eliminate the kernel header dependency
@@ -70,4 +72,8 @@ struct linux_rtc_wkalrm {
#define RTC_AF 0x20
#define RTC_UF 0x10
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
+
#endif
diff --git a/include/shadow_.h b/include/shadow_.h
index 92bcde8..5a8b71a 100644
--- a/include/shadow_.h
+++ b/include/shadow_.h
@@ -19,15 +19,13 @@
/* Declaration of types and functions for shadow password suite */
-#if !ENABLE_USE_BB_SHADOW
-
-#include <shadow.h>
-
-#else
-
#ifndef _SHADOW_H
#define _SHADOW_H 1
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
/* Paths to the user database files */
#ifndef _PATH_SHADOW
#define _PATH_SHADOW "/etc/shadow"
@@ -110,5 +108,8 @@ extern int lckpwdf(void);
/* Unlock password file */
extern int ulckpwdf(void);
-#endif /* shadow.h */
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
#endif
+
+#endif /* shadow.h */
diff --git a/include/unarchive.h b/include/unarchive.h
index b49e6cb..a6b0477 100644
--- a/include/unarchive.h
+++ b/include/unarchive.h
@@ -2,6 +2,10 @@
#ifndef __UNARCHIVE_H__
#define __UNARCHIVE_H__
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
#define ARCHIVE_PRESERVE_DATE 1
#define ARCHIVE_CREATE_LEADING_DIRS 2
#define ARCHIVE_EXTRACT_UNCONDITIONAL 4
@@ -126,4 +130,8 @@ extern int open_transformer(int src_fd, const char *transform_prog);
#define open_transformer(src_fd, transformer, transform_prog) open_transformer(src_fd, transform_prog)
#endif
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
+
#endif
diff --git a/include/xatonum.h b/include/xatonum.h
index 49ddced..6cf1299 100644
--- a/include/xatonum.h
+++ b/include/xatonum.h
@@ -7,6 +7,10 @@
* Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
/* Provides extern declarations of functions */
#define DECLARE_STR_CONV(type, T, UT) \
\
@@ -166,3 +170,7 @@ uint32_t bb_strtou32(const char *arg, char **endp, int base)
/* Floating point */
/* double bb_strtod(const char *arg, char **endp); */
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
diff --git a/include/xregex.h b/include/xregex.h
index 23cf19c..d4bf732 100644
--- a/include/xregex.h
+++ b/include/xregex.h
@@ -12,7 +12,16 @@
#define __BB_REGEX__
#include <regex.h>
+
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
+
char* regcomp_or_errmsg(regex_t *preg, const char *regex, int cflags);
void xregcomp(regex_t *preg, const char *regex, int cflags);
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
+#endif
+
#endif