From 3234a31b489707f19ec6d4c9909af06f20ddb901 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Mon, 2 Aug 2021 13:52:36 -0700 Subject: ld.so: Don't fill the DT_DEBUG entry in ld.so [BZ #28129] Linker creates the DT_DEBUG entry only in executables. Don't fill the non-existent DT_DEBUG entry in ld.so with the run-time address of the r_debug structure. This fixes BZ #28129. --- elf/rtld.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'elf/rtld.c') diff --git a/elf/rtld.c b/elf/rtld.c index 9642eb9c92..628245d8cd 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -1761,17 +1761,11 @@ dl_main (const ElfW(Phdr) *phdr, #ifdef ELF_MACHINE_DEBUG_SETUP /* Some machines (e.g. MIPS) don't use DT_DEBUG in this way. */ ELF_MACHINE_DEBUG_SETUP (main_map, r); - ELF_MACHINE_DEBUG_SETUP (&GL(dl_rtld_map), r); #else if (main_map->l_info[DT_DEBUG] != NULL) /* There is a DT_DEBUG entry in the dynamic section. Fill it in with the run-time address of the r_debug structure */ main_map->l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) r; - - /* Fill in the pointer in the dynamic linker's own dynamic section, in - case you run gdb on the dynamic linker directly. */ - if (GL(dl_rtld_map).l_info[DT_DEBUG] != NULL) - GL(dl_rtld_map).l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) r; #endif /* We start adding objects. */ -- cgit 1.4.1