+++ /dev/null
-Defer removal of the local scope of a dl-opened library after
-all the destructors (of itself and related dependencies) are actually
-get unloaded, otherwise any function registered via atexit()
-won't be resolved.
-
-Signed-off-by: Khem Raj <raj.khem at gmail.com>
-Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono at st.com>
-Signed-off-by: Carmelo Amoroso <carmelo.amoroso at st.com>
----
- ldso/libdl/libdl.c | 33 +++++++++++++++++++++------------
- 1 files changed, 21 insertions(+), 12 deletions(-)
-
-
-Upstream-Status: Pending
-
-Index: git/ldso/libdl/libdl.c
-===================================================================
---- git.orig/ldso/libdl/libdl.c 2012-01-17 17:38:44.930821794 -0800
-+++ git/ldso/libdl/libdl.c 2012-01-17 17:39:02.754822656 -0800
-@@ -780,7 +780,9 @@
- struct dyn_elf *handle;
- unsigned int end = 0, start = 0xffffffff;
- unsigned int i, j;
-- struct r_scope_elem *ls;
-+ struct r_scope_elem *ls, *ls_next = NULL;
-+ struct elf_resolve **handle_rlist;
-+
- #if defined(USE_TLS) && USE_TLS
- bool any_tls = false;
- size_t tls_free_start = NO_TLS_OFFSET;
-@@ -813,6 +815,19 @@
- free(handle);
- return 0;
- }
-+
-+ /* Store the handle's local scope array for later removal */
-+ handle_rlist = handle->dyn->symbol_scope.r_list;
-+
-+ /* Store references to the local scope entries for later removal */
-+ for (ls = &_dl_loaded_modules->symbol_scope; ls && ls->next; ls = ls->next)
-+ if (ls->next->r_list[0] == handle->dyn) {
-+ break;
-+ }
-+ /* ls points to the previous local symbol scope */
-+ if(ls && ls->next)
-+ ls_next = ls->next->next;
-+
- /* OK, this is a valid handle - now close out the file */
- for (j = 0; j < handle->init_fini.nlist; ++j) {
- tpnt = handle->init_fini.init_fini[j];
-@@ -974,16 +989,6 @@
- }
- }
-
-- if (handle->dyn == tpnt) {
-- /* Unlink the local scope from global one */
-- for (ls = &_dl_loaded_modules->symbol_scope; ls; ls = ls->next)
-- if (ls->next->r_list[0] == tpnt) {
-- _dl_if_debug_print("removing symbol_scope: %s\n", tpnt->libname);
-- break;
-- }
-- ls->next = ls->next->next;
-- }
--
- /* Next, remove tpnt from the global symbol table list */
- if (_dl_symbol_tables) {
- if (_dl_symbol_tables->dyn == tpnt) {
-@@ -1005,10 +1010,14 @@
- }
- }
- free(tpnt->libname);
-- free(tpnt->symbol_scope.r_list);
- free(tpnt);
- }
- }
-+ /* Unlink and release the handle's local scope from global one */
-+ if(ls)
-+ ls->next = ls_next;
-+ free(handle_rlist);
-+
- for (rpnt1 = handle->next; rpnt1; rpnt1 = rpnt1_tmp) {
- rpnt1_tmp = rpnt1->next;
- free(rpnt1);
--- /dev/null
+Patch is backported from
+http://lists.busybox.net/pipermail/uclibc/2011-March/045003.html
+
+Upstream-Status: Pending
+
+Index: git/ldso/ldso/dl-elf.c
+===================================================================
+--- git.orig/ldso/ldso/dl-elf.c 2012-01-23 19:18:58.000000000 -0800
++++ git/ldso/ldso/dl-elf.c 2012-01-23 21:52:06.144646590 -0800
+@@ -133,53 +133,60 @@
+ * in uClibc/ldso/util/ldd.c */
+ static struct elf_resolve *
+ search_for_named_library(const char *name, unsigned rflags, const char *path_list,
+- struct dyn_elf **rpnt)
++ struct dyn_elf **rpnt, const char* origin)
+ {
+- char *path, *path_n, *mylibname;
++ char *mylibname;
++ const char *p, *pn;
+ struct elf_resolve *tpnt;
+- int done;
++ int plen;
+
+ if (path_list==NULL)
+ return NULL;
+
+- /* We need a writable copy of this string, but we don't
+- * need this allocated permanently since we don't want
+- * to leak memory, so use alloca to put path on the stack */
+- done = _dl_strlen(path_list);
+- path = alloca(done + 1);
+-
+ /* another bit of local storage */
+ mylibname = alloca(2050);
+
+- _dl_memcpy(path, path_list, done+1);
+-
+ /* Unlike ldd.c, don't bother to eliminate double //s */
+
+ /* Replace colons with zeros in path_list */
+ /* : at the beginning or end of path maps to CWD */
+ /* :: anywhere maps CWD */
+ /* "" maps to CWD */
+- done = 0;
+- path_n = path;
+- do {
+- if (*path == 0) {
+- *path = ':';
+- done = 1;
++ for (p = path_list; p != NULL; p = pn) {
++ pn = _dl_strchr(p + 1, ':');
++ if (pn != NULL) {
++ plen = pn - p;
++ pn++;
++ } else
++ plen = _dl_strlen(p);
++
++ if (plen >= 7 && _dl_memcmp(p, "$ORIGIN", 7) == 0) {
++ int olen;
++ if (rflags && plen != 7)
++ continue;
++ if (origin == NULL)
++ continue;
++ for (olen = _dl_strlen(origin) - 1; olen >= 0 && origin[olen] != '/'; olen--)
++ ;
++ if (olen <= 0)
++ continue;
++ _dl_memcpy(&mylibname[0], origin, olen);
++ _dl_memcpy(&mylibname[olen], p + 7, plen - 7);
++ mylibname[olen + plen - 7] = 0;
++ } else if (plen != 0) {
++ _dl_memcpy(mylibname, p, plen);
++ mylibname[plen] = 0;
++ } else {
++ _dl_strcpy(mylibname, ".");
+ }
+- if (*path == ':') {
+- *path = 0;
+- if (*path_n)
+- _dl_strcpy(mylibname, path_n);
+- else
+- _dl_strcpy(mylibname, "."); /* Assume current dir if empty path */
+- _dl_strcat(mylibname, "/");
+- _dl_strcat(mylibname, name);
+- if ((tpnt = _dl_load_elf_shared_library(rflags, rpnt, mylibname)) != NULL)
+- return tpnt;
+- path_n = path+1;
+- }
+- path++;
+- } while (!done);
++ _dl_strcat(mylibname, "/");
++ _dl_strcat(mylibname, name);
++
++ tpnt = _dl_load_elf_shared_library(rflags, rpnt, mylibname);
++ if (tpnt != NULL)
++ return tpnt;
++ }
++
+ return NULL;
+ }
+
+@@ -231,8 +238,10 @@
+ if (pnt) {
+ pnt += (unsigned long) tpnt->dynamic_info[DT_STRTAB];
+ _dl_if_debug_dprint("\tsearching RPATH='%s'\n", pnt);
+- if ((tpnt1 = search_for_named_library(libname, rflags, pnt, rpnt)) != NULL)
++ if ((tpnt1 = search_for_named_library(libname, rflags, pnt, rpnt,
++ tpnt->libname)) != NULL)
+ return tpnt1;
++
+ }
+ #endif
+
+@@ -240,7 +249,7 @@
+ /* Check in LD_{ELF_}LIBRARY_PATH, if specified and allowed */
+ if (_dl_library_path) {
+ _dl_if_debug_dprint("\tsearching LD_LIBRARY_PATH='%s'\n", _dl_library_path);
+- if ((tpnt1 = search_for_named_library(libname, rflags, _dl_library_path, rpnt)) != NULL)
++ if ((tpnt1 = search_for_named_library(libname, rflags, _dl_library_path, rpnt, NULL)) != NULL)
+ {
+ return tpnt1;
+ }
+@@ -254,7 +263,7 @@
+ if (pnt) {
+ pnt += (unsigned long) tpnt->dynamic_info[DT_STRTAB];
+ _dl_if_debug_dprint("\tsearching RUNPATH='%s'\n", pnt);
+- if ((tpnt1 = search_for_named_library(libname, rflags, pnt, rpnt)) != NULL)
++ if ((tpnt1 = search_for_named_library(libname, rflags, pnt, rpnt, NULL)) != NULL)
+ return tpnt1;
+ }
+ #endif
+@@ -288,7 +297,7 @@
+ /* Look for libraries wherever the shared library loader
+ * was installed */
+ _dl_if_debug_dprint("\tsearching ldso dir='%s'\n", _dl_ldsopath);
+- tpnt1 = search_for_named_library(libname, rflags, _dl_ldsopath, rpnt);
++ tpnt1 = search_for_named_library(libname, rflags, _dl_ldsopath, rpnt, NULL);
+ if (tpnt1 != NULL)
+ return tpnt1;
+ #endif
+@@ -301,7 +310,7 @@
+ #ifndef __LDSO_CACHE_SUPPORT__
+ ":" UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib"
+ #endif
+- , rpnt);
++ , rpnt, NULL);
+ if (tpnt1 != NULL)
+ return tpnt1;
+
+Index: git/ldso/ldso/ldso.c
+===================================================================
+--- git.orig/ldso/ldso/ldso.c 2012-01-23 19:18:58.000000000 -0800
++++ git/ldso/ldso/ldso.c 2012-01-23 21:34:11.152594621 -0800
+@@ -407,6 +407,20 @@
+ return p - list;
+ }
+
++static void _dl_setup_progname(const char *argv0)
++{
++ char image[PATH_MAX];
++ ssize_t s;
++
++ s = _dl_readlink("/proc/self/exe", image, sizeof(image));
++ if (s > 0 && image[0] == '/') {
++ image[s] = 0;
++ _dl_progname = _dl_strdup(image);
++ } else if (argv0) {
++ _dl_progname = argv0;
++ }
++}
++
+ void *_dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
+ ElfW(auxv_t) auxvt[AT_EGID + 1], char **envp, char **argv
+ DL_GET_READY_TO_RUN_EXTRA_PARMS)
+@@ -458,9 +472,7 @@
+ * been fixed up by now. Still no function calls outside of this
+ * library, since the dynamic resolver is not yet ready.
+ */
+- if (argv[0]) {
+- _dl_progname = argv[0];
+- }
++ _dl_setup_progname(argv[0]);
+
+ #ifndef __LDSO_STANDALONE_SUPPORT__
+ if (_start == (void *) auxvt[AT_ENTRY].a_un.a_val) {
projects / scm / bb / tizen-distro.git / commitdiff