From 22d606e9c28ce92ff1fd0f006b2878ab685cd0b6 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Tue, 21 Feb 2006 01:51:59 +0000 Subject: [PATCH] PR ld/2218 * elf32-arm.c (allocate_dynrelocs): Ensure undef weak sym in pie is dynamic. * elf32-hppa.c (allocate_dynrelocs): Likewise. * elf32-i386.c (allocate_dynrelocs): Likewise. * elf32-s390.c (allocate_dynrelocs): Likewise. * elf32-sh.c (allocate_dynrelocs): Likewise. * elf64-s390.c (allocate_dynrelocs): Likewise. * elf64-x86-64.c (allocate_dynrelocs): Likewise. * elf32-m32r.c (allocate_dynrelocs): Likewise. Discard relocs on undef weak with non-default visibility too. * elfxx-sparc.c (allocate_dynrelocs): Ditto. --- bfd/ChangeLog | 15 +++++++++++++++ bfd/elf32-arm.c | 17 +++++++++++++++-- bfd/elf32-hppa.c | 18 +++++++++++++++--- bfd/elf32-i386.c | 16 ++++++++++++++-- bfd/elf32-m32r.c | 22 ++++++++++++++++++++-- bfd/elf32-s390.c | 18 +++++++++++++++--- bfd/elf32-sh.c | 20 ++++++++++++++++---- bfd/elf64-s390.c | 18 +++++++++++++++--- bfd/elf64-x86-64.c | 16 ++++++++++++++-- bfd/elfxx-sparc.c | 20 +++++++++++++++++++- 10 files changed, 158 insertions(+), 22 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 718f5f8526..4531aad7fa 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,18 @@ +2006-02-21 Alan Modra + + PR ld/2218 + * elf32-arm.c (allocate_dynrelocs): Ensure undef weak sym in pie + is dynamic. + * elf32-hppa.c (allocate_dynrelocs): Likewise. + * elf32-i386.c (allocate_dynrelocs): Likewise. + * elf32-s390.c (allocate_dynrelocs): Likewise. + * elf32-sh.c (allocate_dynrelocs): Likewise. + * elf64-s390.c (allocate_dynrelocs): Likewise. + * elf64-x86-64.c (allocate_dynrelocs): Likewise. + * elf32-m32r.c (allocate_dynrelocs): Likewise. Discard relocs + on undef weak with non-default visibility too. + * elfxx-sparc.c (allocate_dynrelocs): Ditto. + 2006-02-21 Alan Modra * bfd.c: (_bfd_default_error_handler): Don't call abort on diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index bdac680793..f9887168e0 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -6333,9 +6333,22 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + if (eh->relocs_copied != NULL && h->root.type == bfd_link_hash_undefweak) - eh->relocs_copied = NULL; + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->relocs_copied = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } + else if (htab->root.is_relocatable_executable && h->dynindx == -1 && h->root.type == bfd_link_hash_new) { diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c index 85352aaf9d..89900b75fa 100644 --- a/bfd/elf32-hppa.c +++ b/bfd/elf32-hppa.c @@ -1,6 +1,6 @@ /* BFD back-end for HP PA-RISC ELF files. Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, - 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. Original code by Center for Software Science @@ -2020,9 +2020,21 @@ allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT + if (hh->dyn_relocs != NULL && eh->root.type == bfd_link_hash_undefweak) - hh->dyn_relocs = NULL; + { + if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT) + hh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (eh->dynindx == -1 + && !eh->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, eh)) + return FALSE; + } + } } else { diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index b8e8790928..64e5fb0d2a 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -1779,9 +1779,21 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) - eh->dyn_relocs = NULL; + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else if (ELIMINATE_COPY_RELOCS) { diff --git a/bfd/elf32-m32r.c b/bfd/elf32-m32r.c index a4c08db227..6a8c5bfdaa 100644 --- a/bfd/elf32-m32r.c +++ b/bfd/elf32-m32r.c @@ -1,6 +1,6 @@ /* M32R-specific support for 32-bit ELF. - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 - Free Software Foundation, Inc. + Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006 Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -2101,6 +2101,24 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) pp = &p->next; } } + + /* Also discard relocs on undefined weak syms with non-default + visibility. */ + if (eh->dyn_relocs != NULL + && h->root.type == bfd_link_hash_undefweak) + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else { diff --git a/bfd/elf32-s390.c b/bfd/elf32-s390.c index 14a3191b59..afe6c7650d 100644 --- a/bfd/elf32-s390.c +++ b/bfd/elf32-s390.c @@ -1,5 +1,5 @@ /* IBM S/390-specific support for 32-bit ELF - Copyright 2000, 2001, 2002, 2003, 2004, 2005 + Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. Contributed by Carl B. Pedersen and Martin Schwidefsky. @@ -1908,9 +1908,21 @@ allocate_dynrelocs (h, inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) - eh->dyn_relocs = NULL; + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else if (ELIMINATE_COPY_RELOCS) { diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c index 4d07414cd1..fbd0470481 100644 --- a/bfd/elf32-sh.c +++ b/bfd/elf32-sh.c @@ -1,6 +1,6 @@ /* Renesas / SuperH SH specific support for 32-bit ELF - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 - Free Software Foundation, Inc. + Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006 Free Software Foundation, Inc. Contributed by Ian Lance Taylor, Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -4160,9 +4160,21 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) - eh->dyn_relocs = NULL; + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else { diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c index f93c613025..83eb836280 100644 --- a/bfd/elf64-s390.c +++ b/bfd/elf64-s390.c @@ -1,5 +1,5 @@ /* IBM S/390-specific support for 64-bit ELF - Copyright 2000, 2001, 2002, 2003, 2004, 2005 + Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. Contributed Martin Schwidefsky (schwidefsky@de.ibm.com). @@ -1881,9 +1881,21 @@ allocate_dynrelocs (h, inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) - eh->dyn_relocs = NULL; + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else if (ELIMINATE_COPY_RELOCS) { diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 5433771c13..a35400e2db 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -1565,9 +1565,21 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) /* Also discard relocs on undefined weak syms with non-default visibility. */ - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) - eh->dyn_relocs = NULL; + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else if (ELIMINATE_COPY_RELOCS) { diff --git a/bfd/elfxx-sparc.c b/bfd/elfxx-sparc.c index 802206fd43..71eed13e80 100644 --- a/bfd/elfxx-sparc.c +++ b/bfd/elfxx-sparc.c @@ -1,5 +1,5 @@ /* SPARC-specific support for ELF - Copyright 2005 Free Software Foundation, Inc. + Copyright 2005, 2006 Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -1935,6 +1935,24 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf) pp = &p->next; } } + + /* Also discard relocs on undefined weak syms with non-default + visibility. */ + if (eh->dyn_relocs != NULL + && h->root.type == bfd_link_hash_undefweak) + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } } else { -- 2.34.1