On Linux/x86-64, I got /usr/local/bin/ld: copy reloc against protected `protvaritcpt' is invalid /usr/local/bin/ld: failed to set dynamic section sizes: Bad value collect2: error: ld returned 1 exit status make[4]: *** [/export/build/gnu/glibc/build-x86_64-linux/elf/vismain] Error 1
It is related to glibc PR 17711.
The master branch has been updated by H.J. Lu <hjl@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ca3fe95e469b9daec153caa2c90665f5daaec2b5 commit ca3fe95e469b9daec153caa2c90665f5daaec2b5 Author: H.J. Lu <hjl.tools@gmail.com> Date: Thu Mar 5 06:34:39 2015 -0800 Add extern_protected_data and set it for x86 With copy relocation, address of protected data defined in the shared library may be external. This patch adds extern_protected_data and changes _bfd_elf_symbol_refs_local_p to return false for protected data if extern_protected_data is true. bfd/ PR ld/pr15228 PR ld/pr17709 * elf-bfd.h (elf_backend_data): Add extern_protected_data. * elf32-i386.c (elf_backend_extern_protected_data): New. Defined to 1. * elf64-x86-64.c (elf_backend_extern_protected_data): Likewise. * elflink.c (_bfd_elf_adjust_dynamic_copy): Don't error on copy relocs against protected symbols if extern_protected_data is true. (_bfd_elf_symbol_refs_local_p): Don't return true on protected non-function symbols if extern_protected_data is true. * elfxx-target.h (elf_backend_extern_protected_data): New. Default to 0. (elfNN_bed): Initialize extern_protected_data with elf_backend_extern_protected_data. ld/testsuite/ PR ld/pr15228 PR ld/pr17709 * ld-i386/i386.exp (i386tests): Add a test for PR ld/17709. * ld-i386/pr17709-nacl.rd: New file. * ld-i386/pr17709.rd: Likewise. * ld-i386/pr17709a.s: Likewise. * ld-i386/pr17709b.s: Likewise. * ld-i386/protected3.d: Updated. * ld-i386/protected3.s: Likewise. * ld-x86-64/pr17709-nacl.rd: New file. * ld-x86-64/pr17709.rd: Likewise. * ld-x86-64/pr17709a.s: Likewise. * ld-x86-64/pr17709b.s: Likewise. * ld-x86-64/protected3.d: Updated. * ld-x86-64/protected3.s: Likewise. * ld-x86-64/x86-64.exp (x86_64tests): Add a test for PR ld/17709.
The binutils-2_25-branch branch has been updated by H.J. Lu <hjl@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=031994d25c8c8dc392ceb43abc2dfd9a851bc384 commit 031994d25c8c8dc392ceb43abc2dfd9a851bc384 Author: H.J. Lu <hjl.tools@gmail.com> Date: Thu Mar 5 06:34:39 2015 -0800 Add extern_protected_data and set it for x86 With copy relocation, address of protected data defined in the shared library may be external. This patch adds extern_protected_data and changes _bfd_elf_symbol_refs_local_p to return false for protected data if extern_protected_data is true. Backport from master: bfd/ PR ld/pr15228 PR ld/pr17709 * elf-bfd.h (elf_backend_data): Add extern_protected_data. * elf32-i386.c (elf_backend_extern_protected_data): New. Defined to 1. * elf64-x86-64.c (elf_backend_extern_protected_data): Likewise. * elflink.c (_bfd_elf_adjust_dynamic_copy): Don't error on copy relocs against protected symbols if extern_protected_data is true. (_bfd_elf_symbol_refs_local_p): Don't return true on protected non-function symbols if extern_protected_data is true. * elfxx-target.h (elf_backend_extern_protected_data): New. Default to 0. (elfNN_bed): Initialize extern_protected_data with elf_backend_extern_protected_data. ld/testsuite/ PR ld/pr15228 PR ld/pr17709 * ld-i386/i386.exp (i386tests): Add a test for PR ld/17709. * ld-i386/pr17709-nacl.rd: New file. * ld-i386/pr17709.rd: Likewise. * ld-i386/pr17709a.s: Likewise. * ld-i386/pr17709b.s: Likewise. * ld-i386/protected3.d: Updated. * ld-i386/protected3.s: Likewise. * ld-x86-64/pr17709-nacl.rd: New file. * ld-x86-64/pr17709.rd: Likewise. * ld-x86-64/pr17709a.s: Likewise. * ld-x86-64/pr17709b.s: Likewise. * ld-x86-64/protected3.d: Updated. * ld-x86-64/protected3.s: Likewise. * ld-x86-64/x86-64.exp (x86_64tests): Add a test for PR ld/17709.
Fixed for 2.26.
The master branch has been updated by H.J. Lu <hjl@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f74839702efcea048ac61374b1539ae81e7c86cc commit f74839702efcea048ac61374b1539ae81e7c86cc Author: H.J. Lu <hjl.tools@gmail.com> Date: Thu Mar 5 06:34:39 2015 -0800 Add extern_protected_data and set it for x86 Re-apply: commit ca3fe95e469b9daec153caa2c90665f5daaec2b5 With copy relocation, address of protected data defined in the shared library may be external. This patch adds extern_protected_data and changes _bfd_elf_symbol_refs_local_p to return false for protected data if extern_protected_data is true. This patch will break building shared libraries with protected data symbols using GCCs older than GCC 5 without the bug fix for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248 GCC backport request should be made in the GCC bug report above. To get correct run-time behavior on Linux, glibc 2.22 or above are required, which have the bug fix for https://sourceware.org/bugzilla/show_bug.cgi?id=17711 Backports for glibc 2.21, 2.20, 2.19 and 2.18 are on hjl/pr17711/2.21, hjl/pr17711/2.20, hjl/pr17711/2.19 and hjl/pr17711/2.18 branches, respectively, at https://sourceware.org/git/?p=glibc.git;a=summary bfd/ PR ld/pr15228 PR ld/pr17709 * elf-bfd.h (elf_backend_data): Add extern_protected_data. * elf32-i386.c (elf_backend_extern_protected_data): New. Defined to 1. * elf64-x86-64.c (elf_backend_extern_protected_data): Likewise. * elflink.c (_bfd_elf_adjust_dynamic_copy): Don't error on copy relocs against protected symbols if extern_protected_data is true. (_bfd_elf_symbol_refs_local_p): Don't return true on protected non-function symbols if extern_protected_data is true. * elfxx-target.h (elf_backend_extern_protected_data): New. Default to 0. (elfNN_bed): Initialize extern_protected_data with elf_backend_extern_protected_data. ld/testsuite/ PR ld/pr15228 PR ld/pr17709 * ld-i386/i386.exp (i386tests): Add a test for PR ld/17709. * ld-i386/pr17709-nacl.rd: New file. * ld-i386/pr17709.rd: Likewise. * ld-i386/pr17709a.s: Likewise. * ld-i386/pr17709b.s: Likewise. * ld-i386/protected3.d: Updated. * ld-i386/protected3.s: Likewise. * ld-x86-64/pr17709-nacl.rd: New file. * ld-x86-64/pr17709.rd: Likewise. * ld-x86-64/pr17709a.s: Likewise. * ld-x86-64/pr17709b.s: Likewise. * ld-x86-64/protected3.d: Updated. * ld-x86-64/protected3.s: Likewise. * ld-x86-64/x86-64.exp (x86_64tests): Add a test for PR ld/17709.
*** Bug 19612 has been marked as a duplicate of this bug. ***