Short description: Cleanup use of _dl_starting_up. Author(s): Fedora glibc team Origin: PATCH Upstream status: https://sourceware.org/ml/libc-alpha/2014-02/msg00589.html Upstream discussions: https://sourceware.org/ml/libc-alpha/2014-02/msg00580.html Based on the following commit: ~~~ From 16552c01a66633c9e412984d9d92616bd4e5303c Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Fri, 11 Jun 2010 11:04:11 +0200 Subject: [PATCH] Properly set __libc_multiple_libcs * elf/rtld.c (_dl_starting_up): Always define. (dl_main): Always set _dl_starting_up. * elf/dl-support.c (_dl_starting_up): Always define. * elf/dl-init.c (_dl_init): Always clear _dl_starting_up. --- ChangeLog | 7 +++++++ elf/dl-init.c | 4 ---- elf/dl-support.c | 2 -- elf/rtld.c | 4 ---- 4 files changed, 7 insertions(+), 10 deletions(-) ~~~ This patch needs to go upstream to get cleaned up, but has always involed analysis of the GNU/Hurd parts of the change and that stalled out, but perhaps with build-many-glibcs we can now test these changes more easily. Index: b/elf/dl-init.c =================================================================== --- a/elf/dl-init.c +++ b/elf/dl-init.c @@ -119,8 +119,6 @@ _dl_init (struct link_map *main_map, int while (i-- > 0) call_init (main_map->l_initfini[i], argc, argv, env); -#ifndef HAVE_INLINED_SYSCALLS /* Finished starting up. */ _dl_starting_up = 0; -#endif } Index: b/elf/dl-support.c =================================================================== --- a/elf/dl-support.c +++ b/elf/dl-support.c @@ -117,10 +117,8 @@ struct r_scope_elem _dl_initial_searchli .r_nlist = 1, }; -#ifndef HAVE_INLINED_SYSCALLS /* Nonzero during startup. */ int _dl_starting_up = 1; -#endif /* Random data provided by the kernel. */ void *_dl_random; Index: b/elf/rtld.c =================================================================== --- a/elf/rtld.c +++ b/elf/rtld.c @@ -214,7 +214,6 @@ audit_list_iter_next (struct audit_list_ return iter->previous->name; } -#ifndef HAVE_INLINED_SYSCALLS /* Set nonzero during loading and initialization of executable and libraries, cleared before the executable's entry point runs. This must not be initialized to nonzero, because the unused dynamic @@ -224,7 +223,6 @@ audit_list_iter_next (struct audit_list_ never be called. */ int _dl_starting_up = 0; rtld_hidden_def (_dl_starting_up) -#endif /* This is the structure which defines all variables global to ld.so (except those which cannot be added for some reason). */ @@ -898,10 +896,8 @@ dl_main (const ElfW(Phdr) *phdr, /* Process the environment variable which control the behaviour. */ process_envvars (&mode); -#ifndef HAVE_INLINED_SYSCALLS /* Set up a flag which tells we are just starting. */ _dl_starting_up = 1; -#endif if (*user_entry == (ElfW(Addr)) ENTRY_POINT) {