Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/meta/recipes-core/uclibc/uclibc-git/0006-ldso-limited-support-for-ORIGIN-in-rpath.patch b/meta/recipes-core/uclibc/uclibc-git/0006-ldso-limited-support-for-ORIGIN-in-rpath.patch
new file mode 100644
index 0000000..f0d8737
--- /dev/null
+++ b/meta/recipes-core/uclibc/uclibc-git/0006-ldso-limited-support-for-ORIGIN-in-rpath.patch
@@ -0,0 +1,233 @@
+From b40c129ed2d53b69463883a5422dd4a012a398f9 Mon Sep 17 00:00:00 2001
+From: Junling Zheng <zhengjunling@huawei.com>
+Date: Fri, 3 Apr 2015 05:02:27 +0000
+Subject: [PATCH 6/7] ldso: limited support for $ORIGIN in rpath
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Derived from:
+http://lists.busybox.net/pipermail/uclibc/2011-March/045003.html
+
+However, the above patch introduced '_dl_strchr' in ldso/ldso/dl-elf.c,
+and caused the following undefined referencing compiling error:
+
+ | .../libdl.a(libdl.os): In function `search_for_named_library':
+ | .../dl-elf.c:156: undefined reference to `_dl_strchr'
+ | collect2: error: ld returned 1 exit status
+
+This problem would be reproduced through compiling gdb in static mode
+using uclibc.
+
+So, add the definition of '_dl_strchr' to fix it. The '_dl_strstr' is
+added as well.
+
+Upstream-Status: Submitted
+
+Signed-off-by: Timo Teräs <timo.teras at iki.fi>
+Signed-off-by: Junling Zheng <zhengjunling@huawei.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ ldso/include/dl-string.h | 2 ++
+ ldso/ldso/dl-elf.c | 79 +++++++++++++++++++++++++-----------------------
+ ldso/ldso/ldso.c | 18 +++++++++--
+ 3 files changed, 59 insertions(+), 40 deletions(-)
+
+diff --git a/ldso/include/dl-string.h b/ldso/include/dl-string.h
+index aacad10..14ae617 100644
+--- a/ldso/include/dl-string.h
++++ b/ldso/include/dl-string.h
+@@ -204,7 +204,9 @@ static __always_inline char * _dl_get_last_path_component(char *path)
+ # define _dl_strcat strcat
+ # define _dl_strcpy strcpy
+ # define _dl_strcmp strcmp
++# define _dl_strchr strchr
+ # define _dl_strrchr strrchr
++# define _dl_strstr strstr
+ # define _dl_memcpy memcpy
+ # define _dl_memcmp memcmp
+ # define _dl_memset memset
+diff --git a/ldso/ldso/dl-elf.c b/ldso/ldso/dl-elf.c
+index 5631905..6ab7afe 100644
+--- a/ldso/ldso/dl-elf.c
++++ b/ldso/ldso/dl-elf.c
+@@ -133,56 +133,60 @@ _dl_protect_relro (struct elf_resolve *l)
+ * 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);
++ _dl_strcat(mylibname, "/");
++ _dl_strcat(mylibname, name);
+ #ifdef __LDSO_SAFE_RUNPATH__
+- if (*mylibname == '/')
++ if (*mylibname == '/')
+ #endif
+- if ((tpnt = _dl_load_elf_shared_library(rflags, rpnt, mylibname)) != NULL)
+- return tpnt;
+- path_n = path+1;
+- }
+- path++;
+- } while (!done);
++ if ((tpnt = _dl_load_elf_shared_library(rflags, rpnt, mylibname)) != NULL)
++ return tpnt;
++ }
+ return NULL;
+ }
+
+@@ -234,7 +238,8 @@ struct elf_resolve *_dl_load_shared_library(unsigned rflags, struct dyn_elf **rp
+ 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
+@@ -243,7 +248,7 @@ struct elf_resolve *_dl_load_shared_library(unsigned rflags, struct dyn_elf **rp
+ /* 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;
+ }
+@@ -257,7 +262,7 @@ struct elf_resolve *_dl_load_shared_library(unsigned rflags, struct dyn_elf **rp
+ 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
+@@ -291,7 +296,7 @@ struct elf_resolve *_dl_load_shared_library(unsigned rflags, struct dyn_elf **rp
+ /* 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
+@@ -304,7 +309,7 @@ struct elf_resolve *_dl_load_shared_library(unsigned rflags, struct dyn_elf **rp
+ #ifndef __LDSO_CACHE_SUPPORT__
+ ":" UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib"
+ #endif
+- , rpnt);
++ , rpnt, NULL);
+ if (tpnt1 != NULL)
+ return tpnt1;
+
+diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c
+index f38f9e3..3812908 100644
+--- a/ldso/ldso/ldso.c
++++ b/ldso/ldso/ldso.c
+@@ -402,6 +402,20 @@ static ptrdiff_t _dl_build_local_scope (struct elf_resolve **list,
+ p += _dl_build_local_scope (p, q->tpnt);
+ 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
+@@ -454,9 +468,7 @@ void *_dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
+ * 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]);
+
+ #ifdef __DSBT__
+ _dl_ldso_dsbt = (void *)tpnt->dynamic_info[DT_DSBT_BASE_IDX];
+--
+2.1.4
+