From ab97ee8f1bf70b24b417e8f690ce50563d508243 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 5 Nov 2014 01:02:47 +0000 Subject: [PATCH] Don't use INTDEF/INTUSE with _dl_mcount (bug 14132). Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch replaces its use for _dl_mcount with use of rtld_hidden_def / rtld_hidden_proto. Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-profile.c (_dl_mcount): Use rtld_hidden_def instead of INTDEF. * sysdeps/generic/ldsodefs.h (_dl_mcount_internal): Remove declaration. (_dl_mcount): Use rtld_hidden_proto. * elf/dl-runtime.c (_dl_profile_fixup): Don't use INTUSE with _dl_mcount. * elf/rtld.c (_rtld_global_ro): Likewise. --- ChangeLog | 10 ++++++++++ elf/dl-profile.c | 2 +- elf/dl-runtime.c | 2 +- elf/rtld.c | 2 +- sysdeps/generic/ldsodefs.h | 3 +-- 5 files changed, 14 insertions(+), 5 deletions(-) diff --git a/ChangeLog b/ChangeLog index 21cf47f552..bcd5d671e0 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,15 @@ 2014-11-04 Joseph Myers + [BZ #14132] + * elf/dl-profile.c (_dl_mcount): Use rtld_hidden_def instead of + INTDEF. + * sysdeps/generic/ldsodefs.h (_dl_mcount_internal): Remove + declaration. + (_dl_mcount): Use rtld_hidden_proto. + * elf/dl-runtime.c (_dl_profile_fixup): Don't use INTUSE with + _dl_mcount. + * elf/rtld.c (_rtld_global_ro): Likewise. + [BZ #14132] * elf/dl-init.c (_dl_init): Don't use INTDEF. * sysdeps/aarch64/dl-machine.h (RTLD_START): Use _dl_init instead diff --git a/elf/dl-profile.c b/elf/dl-profile.c index 2fca7fda19..4f83497d32 100644 --- a/elf/dl-profile.c +++ b/elf/dl-profile.c @@ -598,4 +598,4 @@ _dl_mcount (ElfW(Addr) frompc, ElfW(Addr) selfpc) done: ; } -INTDEF(_dl_mcount) +rtld_hidden_def (_dl_mcount) diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c index 11eba4a832..ee02d5a0e4 100644 --- a/elf/dl-runtime.c +++ b/elf/dl-runtime.c @@ -158,7 +158,7 @@ _dl_profile_fixup ( struct link_map *l, ElfW(Word) reloc_arg, ElfW(Addr) retaddr, void *regs, long int *framesizep) { - void (*mcount_fct) (ElfW(Addr), ElfW(Addr)) = INTUSE(_dl_mcount); + void (*mcount_fct) (ElfW(Addr), ElfW(Addr)) = _dl_mcount; if (l->l_reloc_result == NULL) { diff --git a/elf/rtld.c b/elf/rtld.c index 537fc43744..b07ff435dc 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -170,7 +170,7 @@ struct rtld_global_ro _rtld_global_ro attribute_relro = ._dl_debug_printf = _dl_debug_printf, ._dl_catch_error = _dl_catch_error, ._dl_signal_error = _dl_signal_error, - ._dl_mcount = _dl_mcount_internal, + ._dl_mcount = _dl_mcount, ._dl_lookup_symbol_x = _dl_lookup_symbol_x, ._dl_check_caller = _dl_check_caller, ._dl_open = _dl_open, diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index d1c8e2cb9d..f339ee3db9 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -885,8 +885,7 @@ extern void _dl_start_profile (void) internal_function attribute_hidden; /* The actual functions used to keep book on the calls. */ extern void _dl_mcount (ElfW(Addr) frompc, ElfW(Addr) selfpc); -extern void _dl_mcount_internal (ElfW(Addr) frompc, ElfW(Addr) selfpc) - attribute_hidden; +rtld_hidden_proto (_dl_mcount) /* This function is simply a wrapper around the _dl_mcount function which does not require a FROMPC parameter since this is the