[Bug ld/21997] GNU_PROPERTY_NO_COPY_ON_PROTECTED is ignored by linker

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21997

H.J. Lu  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |2.30

--- Comment #2 from H.J. Lu  ---
Fixed.

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[Bug ld/21997] GNU_PROPERTY_NO_COPY_ON_PROTECTED is ignored by linker

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=21997

--- Comment #1 from cvs-commit at gcc dot gnu.org  ---
The master branch has been updated by H.J. Lu :

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a5b4ee9451dc9ffb6aa29376fc03943c53c6da0d

commit a5b4ee9451dc9ffb6aa29376fc03943c53c6da0d
Author: H.J. Lu 
Date:   Sat Aug 26 19:22:26 2017 -0700

Disallow copy relocation against protected data symbol

We shpouldn't generate copy relocation to resolve reference to protected
data symbol defined in shared object with the NO_COPY_ON_PROTECTED
property.  This patch adds a bit to elf_obj_tdata as well as
elf_i386_link_hash_entry and elf_x86_64_link_hash_entry to track the bfd
with the NO_COPY_ON_PROTECTED property as well as protected symbol
defined in shared object.  extern_protected_data is set to FALSE if any
input relocatable file contains the NO_COPY_ON_PROTECTED property.

bfd/

PR ld/21997
* elf-bfd.h (elf_obj_tdata): Use ENUM_BITFIELD on object_id,
dyn_lib_class and has_gnu_symbols.  Change bad_symtab to bitfield.
Add a has_no_copy_on_protected bitfield.
(elf_has_no_copy_on_protected): New.
* elf-properties.c (_bfd_elf_parse_gnu_properties): Set
elf_has_no_copy_on_protected for GNU_PROPERTY_NO_COPY_ON_PROTECTED.
(elf_merge_gnu_property_list): Likewise.
(_bfd_elf_link_setup_gnu_properties): Set extern_protected_data
to FALSE for elf_has_no_copy_on_protected.
* elf32-i386.c (SYMBOL_NO_COPYRELOC): New.
(elf_i386_link_hash_entry): Add def_protected.
(elf_i386_adjust_dynamic_symbol): Also check SYMBOL_NO_COPYRELOC
when checking info->nocopyreloc.
(elf_i386_link_setup_gnu_properties): Don't set
extern_protected_data here.
(elf_i386_merge_symbol_attribute): New function.
(elf_backend_merge_symbol_attribute): New.
* elf64-x86-64.c (SYMBOL_NO_COPYRELOC): New.
(elf_x86_64_link_hash_entry): Add def_protected.
(elf_x86_64_need_pic): Report protected symbol for def_protected.
(elf_x86_64_adjust_dynamic_symbol): Also check SYMBOL_NO_COPYRELOC
when checking info->nocopyreloc.
(elf_x86_64_relocate_section): Also check for R_X86_64_PC32
relocation run-time overflow and unresolvable R_X86_64_32S
relocation against protected data symbol defined in shared object
with GNU_PROPERTY_NO_COPY_ON_PROTECTED.
(elf_x86_64_link_setup_gnu_properties): Don't set
extern_protected_data here.
(elf_x86_64_merge_symbol_attribute): New function.
(elf_backend_merge_symbol_attribute): New.

ld/

PR ld/21997
* testsuite/ld-i386/i386.exp: Run PR ld/21997 tests.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr21997-1a.S: New file.
* testsuite/ld-i386/pr21997-1b.c: Likewise.
* testsuite/ld-i386/pr21997-1c.S: Likewise.
* testsuite/ld-x86-64/pr21997-1a.S: Likewise.
* testsuite/ld-x86-64/pr21997-1a.err: Likewise.
* testsuite/ld-x86-64/pr21997-1b.c: Likewise.
* testsuite/ld-x86-64/pr21997-1b.err: Likewise.
* testsuite/ld-x86-64/pr21997-1c.c: Likewise.

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[Bug gold/21868] [2.29/2.30 Regression] ICE in fix_errata_and_relocate_erratum_stubs, at ../../gold/aarch64.cc:1999

[costamagnagianfranco at yahoo dot it]

https://sourceware.org/bugzilla/show_bug.cgi?id=21868

Gianfranco  changed:

   What|Removed |Added

 CC||costamagnagianfranco@yahoo.
   ||it

--- Comment #1 from Gianfranco  ---
Ping?

We would like to continue using gold, not having to switch to bfd if possible

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[Bug gas/21999] ARM: relative conditional movw/movt pairs may use incorrect offset

[ard.biesheuvel at linaro dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=21999

--- Comment #1 from Ard Biesheuvel  ---
Thinking about this again, I suppose this is simply a downside of
-mimplicit-it, given that putting the label past the 'it' instruction would be
inappropriate as well.

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