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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] xl: Use gcc hidden visibility attribute
# HG changeset patch
# User "Gianni Tedesco (3P)" <gianni.tedesco@xxxxxxxxxx>
# Date 1281528562 -3600
# Node ID 3bbca5d4784055a470e110f6dcb632bdc5a40f17
# Parent 814eb6baf9799e3e72ac509cfb735357cf96595f
xl: Use gcc hidden visibility attribute
This kills off about 1,000 PLT entries speeding up link time and shaving about
1-2KB off of binary size. It also prevents users of the library erroneously
calling libxl internal functions.
Signed-off-by: Gianni Tedesco <gianni.tedesco@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
tools/libxl/flexarray.c | 3 -
tools/libxl/flexarray.h | 12 ++--
tools/libxl/libxl_internal.h | 114 +++++++++++++++++++++++--------------------
3 files changed, 68 insertions(+), 61 deletions(-)
diff -r 814eb6baf979 -r 3bbca5d47840 tools/libxl/flexarray.c
--- a/tools/libxl/flexarray.c Wed Aug 11 13:09:03 2010 +0100
+++ b/tools/libxl/flexarray.c Wed Aug 11 13:09:22 2010 +0100
@@ -13,8 +13,7 @@
* GNU Lesser General Public License for more details.
*/
-#include <stdlib.h>
-#include "flexarray.h"
+#include "libxl_internal.h"
flexarray_t *flexarray_make(int size, int autogrow)
{
diff -r 814eb6baf979 -r 3bbca5d47840 tools/libxl/flexarray.h
--- a/tools/libxl/flexarray.h Wed Aug 11 13:09:03 2010 +0100
+++ b/tools/libxl/flexarray.h Wed Aug 11 13:09:22 2010 +0100
@@ -22,12 +22,12 @@ typedef struct flexarray {
void **data; /* array of pointer */
} flexarray_t;
-flexarray_t *flexarray_make(int size, int autogrow);
-void flexarray_free(flexarray_t *array);
-int flexarray_grow(flexarray_t *array, int extents);
-int flexarray_set(flexarray_t *array, unsigned int index, void *ptr);
-int flexarray_get(flexarray_t *array, int index, void **ptr);
+_hidden flexarray_t *flexarray_make(int size, int autogrow);
+_hidden void flexarray_free(flexarray_t *array);
+_hidden int flexarray_grow(flexarray_t *array, int extents);
+_hidden int flexarray_set(flexarray_t *array, unsigned int index, void *ptr);
+_hidden int flexarray_get(flexarray_t *array, int index, void **ptr);
-void **flexarray_contents(flexarray_t *array);
+_hidden void **flexarray_contents(flexarray_t *array);
#endif
diff -r 814eb6baf979 -r 3bbca5d47840 tools/libxl/libxl_internal.h
--- a/tools/libxl/libxl_internal.h Wed Aug 11 13:09:03 2010 +0100
+++ b/tools/libxl/libxl_internal.h Wed Aug 11 13:09:22 2010 +0100
@@ -25,6 +25,14 @@
#include <xenctrl.h>
#include "xentoollog.h"
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#define _hidden __attribute__((visibility("hidden")))
+#define _protected __attribute__((visibility("protected")))
+#else
+#define _hidden
+#define _protected
+#endif
+
#include "flexarray.h"
#include "libxl_utils.h"
@@ -51,13 +59,13 @@
/* all of these macros preserve errno (saving and restoring) */
/* logging */
-void xl_logv(libxl_ctx *ctx, xentoollog_level msglevel, int errnoval,
+_hidden void xl_logv(libxl_ctx *ctx, xentoollog_level msglevel, int errnoval,
const char *file /* may be 0 */, int line /* ignored if !file */,
const char *func /* may be 0 */,
char *fmt, va_list al)
__attribute__((format(printf,7,0)));
-void xl_log(libxl_ctx *ctx, xentoollog_level msglevel, int errnoval,
+_hidden void xl_log(libxl_ctx *ctx, xentoollog_level msglevel, int errnoval,
const char *file /* may be 0 */, int line /* ignored if !file */,
const char *func /* may be 0 */,
char *fmt, ...)
@@ -104,74 +112,74 @@ typedef struct {
(u)[0], (u)[1], (u)[2], (u)[3], (u)[4], (u)[5], (u)[6],
(u)[7], \
(u)[8], (u)[9], (u)[10], (u)[11], (u)[12], (u)[13], (u)[14],
(u)[15])
-int xs_writev(struct xs_handle *xsh, xs_transaction_t t, char *dir, char
*kvs[]);
+_hidden int xs_writev(struct xs_handle *xsh, xs_transaction_t t, char *dir,
char *kvs[]);
/* memory allocation tracking/helpers */
-int libxl_ptr_add(libxl_ctx *ctx, void *ptr);
-void libxl_free(libxl_ctx *ctx, void *ptr);
-void libxl_free_all(libxl_ctx *ctx);
-void *libxl_zalloc(libxl_ctx *ctx, int bytes);
-void *libxl_calloc(libxl_ctx *ctx, size_t nmemb, size_t size);
-char *libxl_sprintf(libxl_ctx *ctx, const char *fmt, ...) PRINTF_ATTRIBUTE(2,
3);
-char *libxl_strdup(libxl_ctx *ctx, const char *c);
-char *libxl_dirname(libxl_ctx *ctx, const char *s);
-
-char **libxl_xs_kvs_of_flexarray(libxl_ctx *ctx, flexarray_t *array, int
length);
-int libxl_xs_writev(libxl_ctx *ctx, xs_transaction_t t,
+_hidden int libxl_ptr_add(libxl_ctx *ctx, void *ptr);
+_hidden void libxl_free(libxl_ctx *ctx, void *ptr);
+_hidden void libxl_free_all(libxl_ctx *ctx);
+_hidden void *libxl_zalloc(libxl_ctx *ctx, int bytes);
+_hidden void *libxl_calloc(libxl_ctx *ctx, size_t nmemb, size_t size);
+_hidden char *libxl_sprintf(libxl_ctx *ctx, const char *fmt, ...)
PRINTF_ATTRIBUTE(2, 3);
+_hidden char *libxl_strdup(libxl_ctx *ctx, const char *c);
+_hidden char *libxl_dirname(libxl_ctx *ctx, const char *s);
+
+_hidden char **libxl_xs_kvs_of_flexarray(libxl_ctx *ctx, flexarray_t *array,
int length);
+_hidden int libxl_xs_writev(libxl_ctx *ctx, xs_transaction_t t,
char *dir, char **kvs);
-int libxl_xs_write(libxl_ctx *ctx, xs_transaction_t t,
+_hidden int libxl_xs_write(libxl_ctx *ctx, xs_transaction_t t,
char *path, char *fmt, ...) PRINTF_ATTRIBUTE(4, 5);
-char *libxl_xs_get_dompath(libxl_ctx *ctx, uint32_t domid); // logs errs
-char *libxl_xs_read(libxl_ctx *ctx, xs_transaction_t t, char *path);
-char **libxl_xs_directory(libxl_ctx *ctx, xs_transaction_t t, char *path,
unsigned int *nb);
+_hidden char *libxl_xs_get_dompath(libxl_ctx *ctx, uint32_t domid); // logs
errs
+_hidden char *libxl_xs_read(libxl_ctx *ctx, xs_transaction_t t, char *path);
+_hidden char **libxl_xs_directory(libxl_ctx *ctx, xs_transaction_t t, char
*path, unsigned int *nb);
/* from xl_dom */
-int is_hvm(libxl_ctx *ctx, uint32_t domid);
-int get_shutdown_reason(libxl_ctx *ctx, uint32_t domid);
+_hidden int is_hvm(libxl_ctx *ctx, uint32_t domid);
+_hidden int get_shutdown_reason(libxl_ctx *ctx, uint32_t domid);
#define dominfo_get_shutdown_reason(info) (((info)->flags >>
XEN_DOMINF_shutdownshift) & XEN_DOMINF_shutdownmask)
-int build_pre(libxl_ctx *ctx, uint32_t domid,
+_hidden int build_pre(libxl_ctx *ctx, uint32_t domid,
libxl_domain_build_info *info, libxl_domain_build_state *state);
-int build_post(libxl_ctx *ctx, uint32_t domid,
+_hidden int build_post(libxl_ctx *ctx, uint32_t domid,
libxl_domain_build_info *info, libxl_domain_build_state *state,
char **vms_ents, char **local_ents);
-int build_pv(libxl_ctx *ctx, uint32_t domid,
+_hidden int build_pv(libxl_ctx *ctx, uint32_t domid,
libxl_domain_build_info *info, libxl_domain_build_state *state);
-int build_hvm(libxl_ctx *ctx, uint32_t domid,
+_hidden int build_hvm(libxl_ctx *ctx, uint32_t domid,
libxl_domain_build_info *info, libxl_domain_build_state *state);
-int restore_common(libxl_ctx *ctx, uint32_t domid,
+_hidden int restore_common(libxl_ctx *ctx, uint32_t domid,
libxl_domain_build_info *info, libxl_domain_build_state
*state, int fd);
-int core_suspend(libxl_ctx *ctx, uint32_t domid, int fd, int hvm, int live,
int debug);
-int save_device_model(libxl_ctx *ctx, uint32_t domid, int fd);
-void libxl__userdata_destroyall(libxl_ctx *ctx, uint32_t domid);
+_hidden int core_suspend(libxl_ctx *ctx, uint32_t domid, int fd, int hvm, int
live, int debug);
+_hidden int save_device_model(libxl_ctx *ctx, uint32_t domid, int fd);
+_hidden void libxl__userdata_destroyall(libxl_ctx *ctx, uint32_t domid);
/* from xl_device */
-char *device_disk_backend_type_of_phystype(libxl_disk_phystype phystype);
-char *device_disk_string_of_phystype(libxl_disk_phystype phystype);
-
-int device_physdisk_major_minor(const char *physpath, int *major, int *minor);
-int device_disk_dev_number(char *virtpath);
-
-int libxl_device_generic_add(libxl_ctx *ctx, libxl_device *device,
+_hidden char *device_disk_backend_type_of_phystype(libxl_disk_phystype
phystype);
+_hidden char *device_disk_string_of_phystype(libxl_disk_phystype phystype);
+
+_hidden int device_physdisk_major_minor(const char *physpath, int *major, int
*minor);
+_hidden int device_disk_dev_number(char *virtpath);
+
+_hidden int libxl_device_generic_add(libxl_ctx *ctx, libxl_device *device,
char **bents, char **fents);
-int libxl_device_del(libxl_ctx *ctx, libxl_device *dev, int wait);
-int libxl_device_destroy(libxl_ctx *ctx, char *be_path, int force);
-int libxl_devices_destroy(libxl_ctx *ctx, uint32_t domid, int force);
-int libxl_wait_for_device_model(libxl_ctx *ctx,
+_hidden int libxl_device_del(libxl_ctx *ctx, libxl_device *dev, int wait);
+_hidden int libxl_device_destroy(libxl_ctx *ctx, char *be_path, int force);
+_hidden int libxl_devices_destroy(libxl_ctx *ctx, uint32_t domid, int force);
+_hidden int libxl_wait_for_device_model(libxl_ctx *ctx,
uint32_t domid, char *state,
int (*check_callback)(libxl_ctx *ctx,
uint32_t domid,
const char *state,
void *userdata),
void *check_callback_userdata);
-int libxl_wait_for_backend(libxl_ctx *ctx, char *be_path, char *state);
-int libxl_device_pci_reset(libxl_ctx *ctx, unsigned int domain, unsigned int
bus,
+_hidden int libxl_wait_for_backend(libxl_ctx *ctx, char *be_path, char *state);
+_hidden int libxl_device_pci_reset(libxl_ctx *ctx, unsigned int domain,
unsigned int bus,
unsigned int dev, unsigned int func);
/* from xenguest (helper */
-int hvm_build_set_params(xc_interface *handle, uint32_t domid,
+_hidden int hvm_build_set_params(xc_interface *handle, uint32_t domid,
libxl_domain_build_info *info,
int store_evtchn, unsigned long *store_mfn,
int console_evtchn, unsigned long *console_mfn);
@@ -193,7 +201,7 @@ struct libxl_device_model_starting {
int domid;
};
-int libxl_spawn_spawn(libxl_ctx *ctx,
+_hidden int libxl_spawn_spawn(libxl_ctx *ctx,
libxl_device_model_starting *starting,
const char *what,
void (*intermediate_hook)(void *for_spawn, pid_t
innerchild));
@@ -203,11 +211,11 @@ int libxl_spawn_spawn(libxl_ctx *ctx,
* 0 caller is now the inner child, should probably call libxl_exec
* Caller, may pass 0 for for_spawn, in which case no need to detach.
*/
-int libxl_spawn_detach(libxl_ctx *ctx,
+_hidden int libxl_spawn_detach(libxl_ctx *ctx,
libxl_spawn_starting *for_spawn);
/* Logs errors. Idempotent, but only permitted after successful
* call to libxl_spawn_spawn, and no point calling it again if it fails. */
-int libxl_spawn_check(libxl_ctx *ctx,
+_hidden int libxl_spawn_check(libxl_ctx *ctx,
void *for_spawn);
/* Logs errors but also returns them.
* for_spawn must actually be a libxl_spawn_starting* but
@@ -216,19 +224,19 @@ int libxl_spawn_check(libxl_ctx *ctx,
/* low-level stuff, for synchronous subprocesses etc. */
-void libxl_exec(int stdinfd, int stdoutfd, int stderrfd, char *arg0, char
**args); // logs errors, never returns
-void libxl_log_child_exitstatus(libxl_ctx *ctx,
+_hidden void libxl_exec(int stdinfd, int stdoutfd, int stderrfd, char *arg0,
char **args); // logs errors, never returns
+_hidden void libxl_log_child_exitstatus(libxl_ctx *ctx,
const char *what, pid_t pid, int status);
-char *libxl_abs_path(libxl_ctx *ctx, char *s, const char *path);
+_hidden char *libxl_abs_path(libxl_ctx *ctx, char *s, const char *path);
#define XL_LOG_DEBUG XTL_DEBUG
#define XL_LOG_INFO XTL_INFO
#define XL_LOG_WARNING XTL_WARN
#define XL_LOG_ERROR XTL_ERROR
-char *_libxl_domid_to_name(libxl_ctx *ctx, uint32_t domid);
-char *_libxl_poolid_to_name(libxl_ctx *ctx, uint32_t poolid);
-
-#endif
-
+_hidden char *_libxl_domid_to_name(libxl_ctx *ctx, uint32_t domid);
+_hidden char *_libxl_poolid_to_name(libxl_ctx *ctx, uint32_t poolid);
+
+#endif
+
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