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Hi! Without this patch LD_TRACE_PRELINKING doesn't report conflicts caused by ld.so relocations (malloc, free, etc.). This causes that prelinked binaries use ld.so's own malloc/free, which is in itself bad, but especially bad when e.g. ld.so malloces something and libc.so attempts to free it or the other way around. 2005-02-12 Jakub Jelinek <jakub@redhat.com> * elf/rtld.c (dlmain): If LD_TRACE_PRELINKING, clear l_relocated flag before relocating ld.so again. --- libc/elf/rtld.c.jj 2005-02-11 15:22:21.000000000 +0100 +++ libc/elf/rtld.c 2005-02-12 10:50:50.000000000 +0100 @@ -1919,10 +1919,13 @@ ERROR: ld.so: object '%s' from %s cannot if ((GLRO(dl_debug_mask) & DL_DEBUG_PRELINK) && GL(dl_rtld_map).l_opencount > 1) - _dl_relocate_object (&GL(dl_rtld_map), main_map->l_scope, - 0, 0); - } - + { + /* Mark the link map as not yet relocated again. */ + GL(dl_rtld_map).l_relocated = 0; + _dl_relocate_object (&GL(dl_rtld_map), main_map->l_scope, + 0, 0); + } + } #define VERNEEDTAG (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGIDX (DT_VERNEED)) if (version_info) { Jakub
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