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authorUlrich Drepper <drepper@redhat.com>1999-06-28 15:52:36 +0000
committerUlrich Drepper <drepper@redhat.com>1999-06-28 15:52:36 +0000
commitb3fc5f84d13573b9494fb1f0db9b5e80679e5098 (patch)
treedc0a71f8e940437cbc744a1b2fb9e8a01913a5a8 /iconv/gconv_dl.c
parent738d1a5a43e97ee81d7b62a3c7a5f754f5b51b82 (diff)
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Update.
* sysdeps/libm-ieee754/e_gamma_r.c: Initialize *signgamp for NaN returns. * sysdeps/libm-ieee754/e_gammaf_r.c: Likewise. * sysdeps/libm-ieee754/e_gammal_r.c: Likewise. Reported by John Reiser <jreiser@BitWagon.com> [PR libc/1185]. * elf/dl-dst.h: Fix typo. * elf/dl-open.c: Likewise. 1999-06-26 Zack Weinberg <zack@rabi.columbia.edu> * elf/dl-libc.c: New file, provides three functions: __libc_dlopen, __libc_dlclose, __libc_dlsym. * include/dlfcn.h: Prototype them. Prototype _dl_addr. * elf/Makefile (routines): Add dl-libc.c. * elf/dl-profstub.c (_dl_mcount_wrapper): Change type of argument to void *. * elf/ldsodefs.h: Change proto and use of _dl_mcount_wrapper to match. * iconv/gconv.c: Include dlfcn.h. * iconv/gconv_db.c: Likewise. * malloc/mtrace.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_int.h (struct __gconv_loaded_object): Change `handle' to a void *. (__gconv_find_func): Delete prototype. * iconv/gconv_dl.c: Don't include ldsodefs.h. Remove dlerror_run and related functions and structs. Use __libc_dlopen, __libc_dlsym, __libc_dlclose. * nss/nsswitch.c: Likewise. 1999-06-28 Ulrich Drepper <drepper@cygnus.com>
Diffstat (limited to 'iconv/gconv_dl.c')
-rw-r--r--iconv/gconv_dl.c93
1 files changed, 9 insertions, 84 deletions
diff --git a/iconv/gconv_dl.c b/iconv/gconv_dl.c
index dc90986077..7d327edc68 100644
--- a/iconv/gconv_dl.c
+++ b/iconv/gconv_dl.c
@@ -26,10 +26,8 @@
#include <bits/libc-lock.h>
#include <sys/param.h>
-#include <ldsodefs.h>
#include <gconv_int.h>
-
/* This is a tuning parameter. If a transformation module is not used
anymore it gets not immediately unloaded. Instead we wait a certain
number of load attempts for further modules. If none of the
@@ -39,13 +37,10 @@
before unloading. */
#define TRIES_BEFORE_UNLOAD 2
-
/* Array of loaded objects. This is shared by all threads so we have
to use semaphores to access it. */
static void *loaded;
-
-
/* Comparison function for searching `loaded_object' tree. */
static int
known_compare (const void *p1, const void *p2)
@@ -58,70 +53,6 @@ known_compare (const void *p1, const void *p2)
return (intptr_t) s1->handle - (intptr_t) s2->handle;
}
-
-static void
-do_open (void *a)
-{
- struct __gconv_loaded_object *args = (struct __gconv_loaded_object *) a;
- /* Open and relocate the shared object. */
- args->handle = _dl_open (args->name, RTLD_LAZY, NULL);
-}
-
-
-static int
-internal_function
-dlerror_run (void (*operate) (void *), void *args)
-{
- char *last_errstring = NULL;
- int result;
-
- (void) _dl_catch_error (&last_errstring, operate, args);
-
- result = last_errstring != NULL;
- if (result)
- free (last_errstring);
-
- return result;
-}
-
-
-struct get_sym_args
-{
- /* Arguments to get_sym. */
- struct link_map *map;
- const char *name;
-
- /* Return values of get_sym. */
- ElfW(Addr) loadbase;
- const ElfW(Sym) *ref;
-};
-
-static void
-get_sym (void *a)
-{
- struct get_sym_args *args = (struct get_sym_args *) a;
- args->ref = NULL;
- args->loadbase = _dl_lookup_symbol (args->name, &args->ref,
- args->map->l_local_scope,
- args->map->l_name, 0);
-}
-
-
-void *
-internal_function
-__gconv_find_func (void *handle, const char *name)
-{
- struct get_sym_args args;
-
- args.map = handle;
- args.name = name;
-
- return (dlerror_run (get_sym, &args) ? NULL
- : (void *) (args.loadbase + args.ref->st_value));
-}
-
-
-
/* Open the gconv database if necessary. A non-negative return value
means success. */
struct __gconv_loaded_object *
@@ -170,9 +101,10 @@ __gconv_find_shlib (const char *name)
{
if (found->counter < -TRIES_BEFORE_UNLOAD)
{
- if (dlerror_run (do_open, found) == 0)
+ found->handle = __libc_dlopen (found->name);
+ if (found->handle != NULL)
{
- found->fct = __gconv_find_func (found->handle, "gconv");
+ found->fct = __libc_dlsym (found->handle, "gconv");
if (found->fct == NULL)
{
/* Argh, no conversion function. There is something
@@ -182,10 +114,8 @@ __gconv_find_shlib (const char *name)
}
else
{
- found->init_fct = __gconv_find_func (found->handle,
- "gconv_init");
- found->end_fct = __gconv_find_func (found->handle,
- "gconv_end");
+ found->init_fct = __libc_dlsym (found->handle, "gconv_init");
+ found->end_fct = __libc_dlsym (found->handle, "gconv_end");
/* We have succeeded in loading the shared object. */
found->counter = 1;
@@ -224,11 +154,8 @@ do_release_shlib (const void *nodep, VISIT value, int level)
{
if (--obj->counter < -TRIES_BEFORE_UNLOAD && obj->handle != NULL)
{
- /* Unload the shared object. We don't use the trick to
- catch errors since in the case an error is signalled
- something is really wrong. */
- _dl_close (obj->handle);
-
+ /* Unload the shared object. */
+ __libc_dlclose (obj->handle);
obj->handle = NULL;
}
}
@@ -258,11 +185,9 @@ do_release_all (void *nodep)
{
struct __gconv_loaded_object *obj = (struct __gconv_loaded_object *) nodep;
- /* Unload the shared object. We don't use the trick to
- catch errors since in the case an error is signalled
- something is really wrong. */
+ /* Unload the shared object. */
if (obj->handle != NULL)
- _dl_close (obj->handle);
+ __libc_dlclose (obj->handle);
free (obj);
}