From b70321a200b768e57b211fce3f6926b2b29dee7f Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Sat, 23 Apr 2011 01:16:31 +0000 Subject: [PATCH] Warn relocation in readonly section in a shared object. 2011-04-22 H.J. Lu * elf32-i386.c (elf_i386_readonly_dynrelocs): Warn relocation in readonly section in a shared object. (elf_i386_size_dynamic_sections): Likewise. * elf64-x86-64.c (elf_x86_64_readonly_dynrelocs): Likewise. (elf_x86_64_size_dynamic_sections): Likewise. --- bfd/ChangeLog | 8 ++++++++ bfd/elf32-i386.c | 13 ++++++++++++- bfd/elf64-x86-64.c | 13 ++++++++++++- 3 files changed, 32 insertions(+), 2 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 4d98456..cc10c52 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,11 @@ +2011-04-22 H.J. Lu + + * elf32-i386.c (elf_i386_readonly_dynrelocs): Warn relocation + in readonly section in a shared object. + (elf_i386_size_dynamic_sections): Likewise. + * elf64-x86-64.c (elf_x86_64_readonly_dynrelocs): Likewise. + (elf_x86_64_size_dynamic_sections): Likewise. + 2011-04-21 H.J. Lu PR ld/12694 diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index bb79f89..e32ec83 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -2399,6 +2399,11 @@ elf_i386_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) info->flags |= DF_TEXTREL; + if (info->warn_shared_textrel && info->shared) + info->callbacks->einfo (_("%P: %B: warning: relocation against `%s' in readonly section `%A'.\n"), + p->sec->owner, h->root.root.string, + p->sec); + /* Not an error, just cut short the traversal. */ return FALSE; } @@ -2482,7 +2487,13 @@ elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, srel = elf_section_data (p->sec)->sreloc; srel->size += p->count * sizeof (Elf32_External_Rel); if ((p->sec->output_section->flags & SEC_READONLY) != 0) - info->flags |= DF_TEXTREL; + { + info->flags |= DF_TEXTREL; + if (info->warn_shared_textrel && info->shared) + info->callbacks->einfo (_("%P: %B: warning: relocation in readonly section `%A'.\n"), + p->sec->owner, p->sec); + break; + } } } } diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 8d00edd..a02b3e8 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -2314,6 +2314,11 @@ elf_x86_64_readonly_dynrelocs (struct elf_link_hash_entry *h, info->flags |= DF_TEXTREL; + if (info->warn_shared_textrel && info->shared) + info->callbacks->einfo (_("%P: %B: warning: relocation against `%s' in readonly section `%A'.\n"), + p->sec->owner, h->root.root.string, + p->sec); + /* Not an error, just cut short the traversal. */ return FALSE; } @@ -2393,7 +2398,13 @@ elf_x86_64_size_dynamic_sections (bfd *output_bfd, srel = elf_section_data (p->sec)->sreloc; srel->size += p->count * bed->s->sizeof_rela; if ((p->sec->output_section->flags & SEC_READONLY) != 0) - info->flags |= DF_TEXTREL; + { + info->flags |= DF_TEXTREL; + if (info->warn_shared_textrel && info->shared) + info->callbacks->einfo (_("%P: %B: warning: relocation in readonly section `%A'.\n"), + p->sec->owner, p->sec); + break; + } } } } -- 2.7.4