mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-24 03:30:37 +02:00
266c77afd5
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26703 3c298f89-4303-0410-b956-a3cf2f4a3e73
42 lines
1.8 KiB
Diff
42 lines
1.8 KiB
Diff
[PATCH] ld.so: ldd crashes when __LDSO_SEARCH_INTERP_PATH__ is not #defined
|
|
Since b65c7b2c79debcb9017e31913e01eeaa280106fb, the implicit search path
|
|
can be disabled by not #defining __LDSO_SEARCH_INTERP_PATH__. This
|
|
causes _dl_ldsopath to never be set, so it remains NULL. _dl_ldsopath is
|
|
still used when __LDSO_LDD_SUPPORT__ is #defined, to strip the path off
|
|
of the beginning of the absolute path to the ld.so interpreter in use
|
|
for printing. The _dl_strlen will crash with a NULL argument.
|
|
|
|
Rather than relying on _dl_ldsopath, this change causes ldd to compute
|
|
the interpreter's basename directly.
|
|
|
|
glibc ld.so seems to print the full path to the interpreter without
|
|
any computed basename or =>. I personally prefer glibc's behavior, but
|
|
to preserve backwards compatibility with uClibc ld.so, the existing
|
|
format with the computed basename, =>, and full path is used here. This
|
|
enables simpler (and unchanged) text processing in a pipeline.
|
|
|
|
Signed-off-by: Mark Mentovai <mark at moxienet.com>
|
|
---
|
|
ldso/ldso/ldso.c | 12 +++++++++---
|
|
--- a/ldso/ldso/ldso.c
|
|
+++ b/ldso/ldso/ldso.c
|
|
@@ -925,9 +925,15 @@ void _dl_get_ready_to_run(struct elf_res
|
|
#ifdef __LDSO_LDD_SUPPORT__
|
|
/* End of the line for ldd.... */
|
|
if (trace_loaded_objects) {
|
|
- _dl_dprintf(1, "\t%s => %s (%x)\n",
|
|
- rpnt->dyn->libname + _dl_strlen(_dl_ldsopath) + 1,
|
|
- rpnt->dyn->libname, DL_LOADADDR_BASE(rpnt->dyn->loadaddr));
|
|
+ /* glibc ld.so/ldd would just do
|
|
+ * _dl_dprintf(1, "\t%s (%x)\n", rpnt->dyn->libname,
|
|
+ * DL_LOADADDR_BASE(rpnt->dyn->loadaddr));
|
|
+ * but uClibc has always used the => format. */
|
|
+ char *ptmp = _dl_strrchr(rpnt->dyn->libname, '/');
|
|
+ if (ptmp != rpnt->dyn->libname)
|
|
+ ++ptmp;
|
|
+ _dl_dprintf(1, "\t%s => %s (%x)\n", ptmp, rpnt->dyn->libname,
|
|
+ DL_LOADADDR_BASE(rpnt->dyn->loadaddr));
|
|
_dl_exit(0);
|
|
}
|
|
#endif
|