x86: Only allow S + A relocations against absolute symbol

[deliverable/binutils-gdb.git] / bfd / ChangeLog

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index bea9526d2a1201db1977cfeaa9a7640d6b214637..2ed10465791c9c768d6f29725b55319664ac9803 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,41 @@
+2020-04-01  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR ld/25749
+       PR ld/25754
+       * elf32-i386.c (elf_i386_convert_load_reloc): Convert load
+       relocation to R_386_32 for relocation against non-preemptible
+       absolute symbol.
+       (elf_i386_check_relocs): Call _bfd_elf_x86_valid_reloc_p.  Don't
+       allocate dynamic relocation for non-preemptible absolute symbol.
+       (elf_i386_relocate_section): Pass sec to
+       GENERATE_DYNAMIC_RELOCATION_P.
+       * elf64-x86-64.c (R_X86_64_converted_reloc_bit): Moved.
+       (elf_x86_64_convert_load_reloc): Covert load relocation to
+       R_X86_64_32S or R_X86_64_32 for relocation against non-preemptible
+       absolute symbol.  Don't convert to R_X86_64_32S nor R_X86_64_32
+       for non-preemptible absolute symbol if they overflow.
+       (elf_x86_64_check_relocs): Call _bfd_elf_x86_valid_reloc_p.  Set
+       tls_type for GOT slot to GOT_ABS for non-preemptible absolute
+       symbol.  Don't allocate dynamic relocation for non-preemptible
+       absolute symbol.
+       (elf_x86_64_relocate_section): Don't generate relative relocation
+       for GOTPCREL relocations aganst local absolute symbol.  Pass sec
+       to GENERATE_DYNAMIC_RELOCATION_P.
+       * elfxx-x86.c (elf_x86_allocate_dynrelocs): No dynamic relocation
+       against non-preemptible absolute symbol.
+       (_bfd_elf_x86_valid_reloc_p): New function.
+       (_bfd_x86_elf_size_dynamic_sections): No dynamic relocation for
+       GOT_ABS GOT slot.
+       * elfxx-x86.h (GENERATE_DYNAMIC_RELOCATION_P): Add an SEC
+       argument.  Don't generate dynamic relocation against
+       non-preemptible absolute symbol.
+       (ABS_SYMBOL_P): New.
+       (GENERATE_RELATIVE_RELOC_P): Don't generate relative relocation
+       against non-preemptible absolute symbol.
+       (GOT_ABS): New.
+       (R_X86_64_converted_reloc_bit): New.  Moved from elf64-x86-64.c.
+       (_bfd_elf_x86_valid_reloc_p): New.
+
 2020-04-01  Tamar Christina  <tamar.christina@arm.com>
 
        PR ld/16017