java uses $ORIGIN in RPATH of the binary. This patch from

the mailinglist, seems to work fine.
http://www.mail-archive.com/uclibc@uclibc.org/msg06444.html

1 files changed, 174 insertions, 0 deletions

diff --git a/toolchain/uClibc/patches/rpath-origin.patch b/toolchain/uClibc/patches/rpath-origin.patch
new file mode 100644
index 000000000..c2bd2e8ab
--- /dev/null
+++ b/toolchain/uClibc/patches/rpath-origin.patch
@@ -0,0 +1,174 @@
+diff -Nur uClibc-0.9.32.orig//ldso/ldso/dl-elf.c uClibc-0.9.32/ldso/ldso/dl-elf.c
+--- uClibc-0.9.32.orig//ldso/ldso/dl-elf.c	2011-06-08 21:35:20.000000000 +0200
++++ uClibc-0.9.32/ldso/ldso/dl-elf.c	2011-08-09 11:19:18.325314589 +0200
+@@ -133,53 +133,59 @@
+  * in uClibc/ldso/util/ldd.c */
+ static struct elf_resolve *
+ search_for_named_library(const char *name, int secure, 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 (secure && 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(secure, 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(secure, rpnt, mylibname);
++		if (tpnt != NULL)
++			return tpnt;
++	}
+ 	return NULL;
+ }
+ 
+@@ -231,7 +237,7 @@
+ 	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, secure, pnt, rpnt)) != NULL)
++		if ((tpnt1 = search_for_named_library(libname, secure, pnt, rpnt, tpnt->libname)) != NULL)
+ 			return tpnt1;
+ 	}
+ #endif
+@@ -239,7 +245,7 @@
+ 	/* 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, secure, _dl_library_path, rpnt)) != NULL)
++		if ((tpnt1 = search_for_named_library(libname, secure, _dl_library_path, rpnt, NULL)) != NULL)
+ 		{
+ 			return tpnt1;
+ 		}
+@@ -253,7 +259,7 @@
+ 	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, secure, pnt, rpnt)) != NULL)
++		if ((tpnt1 = search_for_named_library(libname, secure, pnt, rpnt, NULL)) != NULL)
+ 			return tpnt1;
+ 	}
+ #endif
+@@ -287,7 +293,7 @@
+ 	/* 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, secure, _dl_ldsopath, rpnt);
++	tpnt1 = search_for_named_library(libname, secure, _dl_ldsopath, rpnt, NULL);
+ 	if (tpnt1 != NULL)
+ 		return tpnt1;
+ 
+@@ -300,7 +306,7 @@
+ #ifndef __LDSO_CACHE_SUPPORT__
+ 					":" UCLIBC_RUNTIME_PREFIX "usr/X11R6/lib"
+ #endif
+-					, rpnt);
++					, rpnt, NULL);
+ 	if (tpnt1 != NULL)
+ 		return tpnt1;
+ 
+diff -Nur uClibc-0.9.32.orig//ldso/ldso/ldso.c uClibc-0.9.32/ldso/ldso/ldso.c
+--- uClibc-0.9.32.orig//ldso/ldso/ldso.c	2011-06-08 21:35:20.000000000 +0200
++++ uClibc-0.9.32/ldso/ldso/ldso.c	2011-08-09 11:15:04.135386129 +0200
+@@ -272,6 +272,20 @@
+ 	}
+ }
+ 
++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
+@@ -321,9 +335,7 @@
+ 	 * 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]);
+ 
+ 	if (_start == (void *) auxvt[AT_ENTRY].a_un.a_val) {
+ 		_dl_dprintf(_dl_debug_file, "Standalone execution is not supported yet\n");